@import url(https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;700&family=JetBrains+Mono:wght@400;500&display=swap);:root{--primary-blue-darker:#1e3a8a;--text-primary:#1a1a1a;--text-secondary:#6b7280;--text-muted:#94a3b8;--surface-hover:#f9fafb;--surface-border:#e5e7eb;--surface-border-hover:#d1d5db;--gradient-hero:linear-gradient(135deg,#f8fafc,#f1f5f9 50%,#e2e8f0);--gradient-primary:linear-gradient(135deg,#2563eb,#1d4ed8);--gradient-glass:#ffffffd9;--font-system:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--text-5xl:3rem;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-sm:0 2px 4px #0000000d;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 25px #0000001f;--shadow-xl:0 20px 40px #00000026;--transition-fast:0.2s ease;--transition-smooth:0.3s cubic-bezier(0.4,0,0.2,1);--container-max-width:1200px}*{box-sizing:border-box}body{background:#fff;background:var(--surface);color:#1a1a1a;color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-family:var(--font-system);line-height:1.6;padding:0}input,select,textarea{background:#fff!important;background:var(--surface,#fff)!important;color:#1a1a1a!important;color:var(--text-primary,#1a1a1a)!important;font-family:inherit}input::placeholder,textarea::placeholder{color:#6b7280!important;color:var(--text-secondary,#6b7280)!important}button{font-family:inherit}.container{margin:0 auto;max-width:1200px;max-width:var(--container-max-width);padding:0 1rem;padding:0 var(--space-4)}@media (min-width:768px){.container{padding:0 2rem;padding:0 var(--space-8)}}.text-primary{color:#1a1a1a;color:var(--text-primary)}.text-secondary{color:#6b7280;color:var(--text-secondary)}.text-muted{color:#94a3b8;color:var(--text-muted)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.gradient-text{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,#2563eb,#1d4ed8);background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text}.surface-glass{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffffd9;background:var(--gradient-glass);border:1px solid #fff3}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-3px)}60%{transform:translateY(-1px)}}.cta-button{align-items:center;border:none;cursor:pointer;display:inline-flex;font-weight:600;justify-content:center;letter-spacing:-.01em;overflow:hidden;position:relative;text-align:center;text-decoration:none;transition:all var(--transition-smooth);white-space:nowrap}.cta-button:disabled{cursor:not-allowed;opacity:.5;transform:none!important}.cta-button--sm{border-radius:var(--radius-sm);font-size:var(--text-sm);min-height:32px;padding:var(--space-2) var(--space-4)}.cta-button--md{border-radius:var(--radius-md);font-size:var(--text-base);min-height:40px;padding:var(--space-3) var(--space-5)}.cta-button--lg{border-radius:var(--radius-lg);font-size:var(--text-lg);min-height:48px;padding:var(--space-4) var(--space-8)}.cta-button--primary{background:var(--primary-blue);box-shadow:0 4px 16px #2563eb40,0 2px 8px #2563eb26;color:var(--surface)}.cta-button--primary:before{background:linear-gradient(135deg,#ffffff1a,#0000 50%);bottom:0;content:"";left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity var(--transition-smooth)}.cta-button--primary:hover:not(:disabled){background:var(--primary-blue-dark);box-shadow:0 8px 24px #2563eb59,0 4px 12px #2563eb40;transform:translateY(-2px)}.cta-button--primary:hover:not(:disabled):before{opacity:1}.cta-button--primary:active:not(:disabled){transform:translateY(0)}.cta-button--secondary{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fffc;border:1px solid #e2e8f0cc;box-shadow:var(--shadow-sm);color:var(--text-secondary)}.cta-button--secondary:hover:not(:disabled){background:#fffffff2;border-color:#cbd5e1cc;box-shadow:var(--shadow-md);color:var(--text-primary);transform:translateY(-1px)}.cta-button--secondary:active:not(:disabled){transform:translateY(0)}.cta-button--ghost{background:#0000;border:1px solid #0000;color:var(--text-secondary)}.cta-button--ghost:hover:not(:disabled){background:var(--surface-hover);border-color:var(--surface-border);color:var(--primary-blue)}.cta-button--ghost:active:not(:disabled){background:var(--surface-muted)}.header{background:var(--surface);border-bottom:1px solid var(--surface-border);position:-webkit-sticky;position:sticky;top:0;transition:box-shadow var(--transition-fast);z-index:1000}.header:hover{box-shadow:var(--shadow-sm)}.header .container{align-items:center;display:flex;height:64px;justify-content:space-between}.header__logo{align-items:center;display:flex;text-decoration:none;transition:opacity var(--transition-fast)}.header__logo:hover{opacity:.8}.header__logo-img{display:block;height:40px;margin:0;max-width:260px;object-fit:contain;vertical-align:middle;width:auto}.header__nav--desktop{align-items:center;display:none;gap:var(--space-8)}.header__profile-pic{align-items:center;display:flex;text-decoration:none;transition:opacity var(--transition-smooth)}.header__profile-pic:hover{opacity:.8}.header__profile-image{border:2px solid var(--surface-border);border-radius:50%;height:40px;object-fit:cover;transition:border-color var(--transition-smooth);width:40px}.header__profile-pic:hover .header__profile-image{border-color:var(--primary-blue)}.header__nav-button{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:var(--text-base);font-weight:500;padding:var(--space-2) 0;transition:color var(--transition-fast)}.header__nav-button:hover{color:var(--primary-blue)}.header__auth-section{align-items:center;display:flex;gap:var(--space-4)}.header__welcome{color:var(--text-secondary);font-size:var(--text-sm);font-weight:500;margin-right:var(--space-2)}.header__mobile-menu-button{align-items:center;background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;font-size:var(--text-xl);height:44px;justify-content:center;transition:color var(--transition-fast);width:44px}.header__mobile-menu-button:hover{color:var(--text-primary)}.header__mobile-menu{background:var(--surface);border-bottom:1px solid var(--surface-border);box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:var(--space-4);left:0;padding:var(--space-4);position:absolute;right:0;top:100%}.header__mobile-nav-item{background:none;border:none;color:var(--text-secondary);cursor:pointer;display:block;font-size:var(--text-base);font-weight:500;padding:var(--space-3) 0;text-align:left;text-decoration:none;transition:color var(--transition-fast);width:100%}.header__mobile-nav-item:hover{color:var(--primary-blue)}.header__mobile-nav-item.cta-button{margin:var(--space-2) 0;text-align:center}@media (min-width:768px){.header .container{padding:0 var(--space-8)}.header__nav--desktop{display:flex}.header__mobile-menu,.header__mobile-menu-button{display:none}}.section{position:relative;width:100%}.section--white{background:var(--surface)}.section--muted{background:var(--surface-muted)}.section--gradient{background:var(--gradient-hero);overflow:hidden;position:relative}.section--gradient:before{background:radial-gradient(600px circle at 20% 30%,#3b82f614 0,#0000 40%),radial-gradient(800px circle at 80% 70%,#6366f10f 0,#0000 40%);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0}.section--gradient .container{position:relative;z-index:1}.section--sm{padding:var(--space-8) 0}.section--md{padding:var(--space-12) 0}.section--lg{padding:var(--space-16) 0}.section--xl{padding:var(--space-20) 0}@media (min-width:768px){.section--sm{padding:var(--space-12) 0}.section--md{padding:var(--space-16) 0}.section--lg{padding:var(--space-20) 0}.section--xl{padding:6rem 0}}.video-player{height:100%;width:100%}.video-player__container{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);height:0;overflow:hidden;padding-bottom:56.25%;position:relative;transition:all var(--transition-smooth);width:100%}.video-player:hover .video-player__container{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.video-player__iframe{border-radius:var(--radius-lg);height:100%;left:0;position:absolute;top:0;width:100%}.video-player--square .video-player__container{padding-bottom:100%}.video-player--vertical .video-player__container{padding-bottom:177.78%}.video-player--sm .video-player__container{max-width:400px}.video-player--md .video-player__container{max-width:600px}.video-player--lg .video-player__container{max-width:800px}@media (max-width:768px){.video-player__container{border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.video-player:hover .video-player__container{box-shadow:var(--shadow-md);transform:none}}body{-webkit-font-smoothing:antialiased;background-color:#fff;color:#09090b;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;margin:0}code{font-family:JetBrains Mono,monospace}:root{--bg-surface:#fafafa;--text-main:#09090b;--text-secondary:#71717a;--border-subtle:#e4e4e7;--tracking-tighter:-0.04em}.font-display{font-family:Space Grotesk,sans-serif;letter-spacing:-.04em;letter-spacing:var(--tracking-tighter)}.font-mono{font-family:JetBrains Mono,monospace}.bg-grid{position:relative}.bg-grid:before{background-image:linear-gradient(90deg,#00000008 1px,#0000 0),linear-gradient(180deg,#00000008 1px,#0000 0);background-size:40px 40px;content:"";left:0;mask-image:linear-gradient(180deg,#000 40%,#0000);-webkit-mask-image:linear-gradient(180deg,#000 40%,#0000);width:100%}.ambient-glow,.bg-grid:before{height:100%;pointer-events:none;position:absolute;top:0;z-index:0}.ambient-glow{background:radial-gradient(circle at 50% 50%,#2563eb26 0,#0000 60%);filter:blur(60px);left:-10%;width:120%}.cinematic-frame{aspect-ratio:16/9;background:#000;border-radius:12px;box-shadow:0 0 0 1px #0000000d,0 20px 50px -12px #0003;overflow:hidden;position:relative;transition:transform .4s cubic-bezier(.25,.46,.45,.94);z-index:10}.cinematic-frame:hover{box-shadow:0 0 0 1px #2563eb33,0 30px 60px -15px #0000004d;transform:translateY(-4px)}.hero-section{overflow:hidden;position:relative}.hero-vsl-container{align-items:center;display:flex;flex-direction:column;gap:3rem;margin:0 auto;max-width:1000px;position:relative;text-align:center;z-index:1}.hero-title-stack{margin:0 auto;max-width:850px}.hero-badge{align-items:center;background:#2563eb0d;border:1px solid #2563eb26;border-radius:100px;cursor:default;display:inline-flex;gap:8px;margin-bottom:2rem;padding:6px 16px;transition:all .2s ease}.hero-badge:hover{background:#2563eb1a;border-color:#2563eb4d}.hero-badge-dot{animation:pulse 2s infinite;background:var(--primary-blue);border-radius:50%;box-shadow:0 0 8px var(--primary-blue);height:6px;width:6px}@media (max-width:768px){.hero-vsl-container{gap:2rem}}.auth-page,.login-form-container,.register-form-container{align-items:flex-start;height:100vh;overflow:hidden}.auth-container,.auth-page,.login-form-container,.register-form-container{background:#fff;background:var(--background,#fff);display:flex;justify-content:center;padding:2rem}.auth-container{align-items:center;flex-direction:column;min-height:100vh}.auth-brand{margin-bottom:2rem;text-align:center}.auth-brand h1{color:#1a1a1a;color:var(--text-primary,#1a1a1a);font-family:Montserrat,sans-serif;font-weight:700;margin-bottom:.5rem}.auth-brand p{color:#6b7280;color:var(--text-secondary,#6b7280);margin:0}.auth-card,.login-form,.register-form{background:var(--background);border-radius:12px;box-shadow:0 20px 40px #0000001a;flex:1 1;max-height:calc(100vh - 8rem);max-width:500px;overflow-y:auto;padding:3rem;width:100%}.auth-header{margin-bottom:2rem;text-align:center}.auth-header h2{color:var(--text-primary);margin-bottom:.5rem}.auth-header p{color:var(--text-secondary);margin:0}.auth-form{margin-bottom:1.5rem}.auth-footer{text-align:center}.login-form h2,.register-form h2{color:var(--text-primary);margin-bottom:.5rem;text-align:center}.login-form p,.register-form p{color:var(--text-secondary);margin-bottom:2rem;text-align:center}.form-group label{color:var(--text-primary)}.form-group input,.form-group select{background:#fff;background:var(--background,#fff);border:2px solid #e5e7eb;border:2px solid var(--border,#e5e7eb);border-radius:8px;color:#1a1a1a;color:var(--text-primary,#1a1a1a);font-size:1rem;padding:.75rem;transition:border-color .3s ease;width:100%}.form-group input:focus,.form-group select:focus{border-color:var(--primary-color);outline:none}.form-group input:disabled,.form-group select:disabled{background-color:var(--surface);color:var(--text-secondary);cursor:not-allowed}.submit-btn,.submit-button{background:var(--primary-color);border:none;border-radius:8px;color:#fff;margin-bottom:1.5rem;transition:background-color .3s ease,transform .2s ease}.back-to-login-btn,.submit-btn,.submit-button{cursor:pointer;font-size:1rem;font-weight:600;padding:.75rem;width:100%}.back-to-login-btn{background:var(--surface);border:2px solid var(--border);border-radius:8px;color:var(--text-primary);transition:all .3s ease}.back-to-login-btn:hover{background:#f8fafc;background:var(--surface,#f8fafc);border-color:var(--primary-color)}.link-btn{background:none;border:none;color:var(--primary-color);cursor:pointer;font-size:1rem;text-decoration:none;transition:color .3s ease}.link-btn:hover{color:#1d4ed8;text-decoration:underline}.submit-btn:hover:not(:disabled),.submit-button:hover:not(:disabled){background:#1d4ed8}.submit-btn:disabled,.submit-button:disabled{background:var(--text-secondary);cursor:not-allowed;transform:none}.error-message{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:var(--error-color);margin-bottom:1.5rem;padding:1rem}.error-message ul{margin:0;padding-left:1.25rem}.error-message li{margin-bottom:.25rem}.success-message{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;color:#166534;margin-bottom:1.5rem;padding:1.5rem;text-align:center}.success-icon{font-size:2rem;margin-bottom:.5rem}.success-message p{color:#166534;margin:.25rem 0}.form-footer{color:var(--text-secondary);text-align:center}.form-footer p{margin-bottom:.5rem}.form-footer a{color:var(--primary-color);font-weight:500;text-decoration:none}.form-footer a:hover{text-decoration:underline}.loading-container{align-items:center;display:flex;justify-content:center;min-height:100vh}.loading-spinner{color:var(--text-secondary);font-size:1.125rem}.unauthorized-container{align-items:center;display:flex;flex-direction:column;justify-content:center;min-height:100vh;padding:2rem;text-align:center}.unauthorized-container h2{color:var(--error-color);margin-bottom:1rem}.unauthorized-container p{color:var(--text-secondary)}.auth-layout{align-items:flex-start;display:flex;gap:4rem;height:100%;max-width:1200px;padding-top:4rem;width:100%}.auth-brand-side{display:flex;flex:1 1;flex-direction:column;height:calc(100vh - 14rem);justify-content:center;position:-webkit-sticky;position:sticky;text-align:center;top:4rem}.auth-slogan{color:#6b7280;color:var(--text-secondary,#6b7280);font-size:1.4rem;margin:-.5rem 0 0;text-align:center}.logo-container{align-items:center;display:flex;gap:.2rem;justify-content:center;margin-bottom:.5rem}.logo-container,.logo-container:hover{color:inherit;text-decoration:none}.auth-logo{height:80px;margin-top:-8px;object-fit:contain;width:80px}.auth-logo-text{color:#1a1a1a;color:var(--text-primary,#1a1a1a);font-family:Montserrat,sans-serif;font-size:4rem;font-weight:700;margin:0;padding:0}.auth-card{max-width:500px;width:100%}.form-row{display:flex}.form-row .form-group{flex:1 1}.validation-message{display:block;font-size:.875rem;margin-top:.25rem}.validation-message.success{color:#10b981}.validation-message.error{color:#ef4444}.form-group input.valid{border-color:#10b981}.form-group input.invalid{border-color:#ef4444}.enrollment-info{background:#f8fafc;border-left:4px solid var(--primary-color);border-radius:8px;margin-bottom:2rem;padding:1.5rem}.enrollment-info h3{color:var(--text-primary);margin-bottom:1rem;margin-top:0}.enrollment-info p{color:var(--text-secondary);margin:.5rem 0}@media (max-width:768px){.auth-page,.login-form-container,.register-form-container{padding:1rem}.auth-layout{flex-direction:column;gap:2rem}.auth-brand-side,.auth-layout{text-align:center}.logo-container{justify-content:center}.auth-card,.login-form,.register-form{max-width:none;padding:2rem}.form-row{flex-direction:column;gap:0}}.tutoring-dashboard{background-color:#f0f2f5;display:grid;grid-template-columns:240px 1fr 300px;height:100vh;overflow:hidden}.left-sidebar{background-color:#fff;border-right:1px solid #e0e0e0;padding:2rem}.left-sidebar .logo img{margin-bottom:2rem;width:100%}.left-sidebar nav ul{list-style:none;margin:0;padding:0}.left-sidebar nav ul li a{border-radius:8px;color:#4a4a4a;display:block;font-weight:500;margin-bottom:.5rem;padding:1rem;text-decoration:none}.left-sidebar nav ul li a.active,.left-sidebar nav ul li a:hover{background-color:#e8f0fe;color:#1a73e8}.right-sidebar{border-left:1px solid #e0e0e0;padding:2rem}.dsb-stats-container{padding:1.25rem}.dsb-stats-header{align-items:center;border-bottom:2px solid #e5e7eb;display:flex;justify-content:space-between;margin-bottom:1.5rem;padding-bottom:.75rem}.dsb-stats-header h2{color:#374151;font-size:1.25rem;font-weight:600;margin:0}.dsb-progress-circle{position:relative}.dsb-stat-item{align-items:center;background:#f9fafb;border-left:3px solid var(--primary-color);border-radius:8px;box-shadow:0 1px 2px #0000000d;display:flex;margin-bottom:.5rem;min-height:auto;padding:.75rem 1rem;transition:all .2s ease}.dsb-stat-item:hover{background:#f3f4f6;box-shadow:0 2px 4px #0000001a;transform:translateX(2px)}.dsb-stat-icon{flex-shrink:0;font-size:1.25rem;margin-right:.75rem;text-align:center;width:1.5rem}.dsb-stat-content{flex:1 1;min-width:0}.dsb-stat-label{color:#6b7280;font-size:.875rem;font-weight:500;line-height:1.2;margin-bottom:.125rem}.dsb-stat-value{color:#111827;font-size:1rem;font-weight:500;line-height:1.2}.dsb-daily-progress-bar{background:#e5e7eb;border-radius:2px;height:4px;margin-top:.375rem;overflow:hidden;width:100%}.dsb-daily-progress-fill{background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:2px;height:100%;transition:width .5s ease}.dsb-stat-item.dsb-streak{border-left-color:#f59e0b}.dsb-stat-item.dsb-gems{border-left-color:#8b5cf6}.dsb-stat-item.dsb-daily-goal{border-left-color:#ef4444}.dsb-stat-item.dsb-tutor{border-left-color:#06b6d4}.dsb-stat-item.dsb-session{border-left-color:#84cc16}.mobile-bottom-nav{display:none}@media (max-width:768px){.tutoring-dashboard{grid-template-columns:1fr;grid-template-rows:auto 1fr;overflow-x:hidden}.left-sidebar,.right-sidebar{display:none}.mobile-bottom-nav{background:#fff;border-top:1px solid #e0e0e0;bottom:0;box-shadow:0 -2px 10px #0000001a;display:block;left:0;position:fixed;right:0;z-index:100}.mobile-bottom-nav-container{-ms-overflow-style:none;-webkit-overflow-scrolling:touch;display:flex;gap:.5rem;overflow-x:scroll;padding:.5rem;scrollbar-width:none;width:100%}.mobile-bottom-nav-container::-webkit-scrollbar{display:none}.mobile-nav-item{align-items:center;border-radius:8px;color:#6b7280;display:flex;flex-direction:column;flex-shrink:0;justify-content:center;min-width:80px;padding:.75rem 1rem;text-decoration:none;transition:all .2s ease;white-space:nowrap}.mobile-nav-item.active,.mobile-nav-item:hover{background:#e8f0fe;color:#1a73e8}.mobile-nav-icon{font-size:1.25rem;margin-bottom:.25rem}.mobile-nav-label{font-size:.75rem;font-weight:500;text-align:center;white-space:nowrap}}.main-content{-ms-overflow-style:none;background-color:#f8fafc;overflow-y:auto;padding:0 2rem 100px;scrollbar-width:none}.main-content::-webkit-scrollbar{display:none}:root{--primary:#2563eb;--primary-dark:#1e40af;--primary-light:#dbeafe;--line-color:#e2e8f0;--card-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--hero-shadow:0 20px 25px -5px #2563eb33,0 10px 10px -5px #2563eb1a;--checkpoint-color:#f59e0b}.dsb-lesson-header{background:#2563eb;background:var(--primary);box-shadow:0 4px 12px #0000001a;color:#fff;display:flex;flex-direction:column;gap:.5rem;margin:0 -2rem 3rem;padding:1.5rem 2rem;position:-webkit-sticky;position:sticky;top:0;z-index:100}.dsb-lesson-details{align-items:center;color:#ffffffe6;display:flex;font-size:.875rem;font-weight:500;justify-content:space-between}.dsb-lesson-details-left,.dsb-lesson-details-right{align-items:center;display:flex;gap:.75rem}.dsb-section-name{font-weight:600;letter-spacing:.025em}.dsb-lesson-title{color:#fff;font-size:1.75rem;font-weight:600;line-height:1.2;margin:0}.dsb-section-selector-btn{background:#fff3;border:1px solid #fff6;border-radius:8px;color:#fff;cursor:pointer;font-size:.75rem;font-weight:600;letter-spacing:.05em;padding:.4rem .8rem;text-transform:uppercase;transition:all .2s ease}.dsb-section-selector-btn:hover{background:#ffffff4d;border-color:#fff}.syllabus-container{margin:0 auto;max-width:700px;opacity:0;position:relative;transition:opacity .5s ease;width:100%}.syllabus-unit-header{margin-bottom:3rem;position:relative;text-align:center}.unit-tag{background:#dbeafe;background:var(--primary-light);border-radius:20px;color:#1e40af;color:var(--primary-dark);display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.05em;margin-bottom:12px;padding:6px 16px;text-transform:uppercase}.unit-title-text{color:#1e293b;color:var(--text-main);font-size:1.75rem;font-weight:700;margin:0}.timeline-list{display:flex;flex-direction:column;padding:20px 0;position:relative}.timeline-list:before{background:#e2e8f0;background:var(--line-color);content:"";height:100%;left:28px;position:absolute;top:0;width:4px;z-index:0}.timeline-progress-bar{background:#2563eb;background:var(--primary);box-shadow:0 0 10px #dbeafe;box-shadow:0 0 10px var(--primary-light);left:28px;position:absolute;top:0;transition:height .5s ease;width:4px;z-index:1}.lesson-item{margin-bottom:32px}.lesson-item,.syllabus-node{align-items:center;display:flex;position:relative;transition:all .3s ease;z-index:2}.syllabus-node{border:4px solid #e2e8f0;border:4px solid var(--line-color);border-radius:50%;color:#64748b;color:var(--text-muted);flex-shrink:0;height:56px;justify-content:center;margin-right:24px;width:56px}.syllabus-card,.syllabus-node{background:#fff;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;box-shadow:var(--card-shadow)}.syllabus-card{border:2px solid #0000;border-radius:16px;cursor:pointer;flex-grow:1;padding:20px 24px;position:relative;transition:all .3s ease}.lesson-item.completed .syllabus-node{background:#2563eb;background:var(--primary);border-color:#2563eb;border-color:var(--primary);color:#fff}.lesson-item.completed .syllabus-card{border-color:#dbeafe;border-color:var(--primary-light)}.lesson-item.current{margin:50px 0}.lesson-item.current .syllabus-node{animation:pulse 2s infinite;background:#2563eb;background:var(--primary);border-color:#fff;box-shadow:0 0 0 6px #dbeafe;box-shadow:0 0 0 6px var(--primary-light);color:#fff;height:72px;margin-left:-8px;width:72px}.lesson-item.current .syllabus-card{background:#2563eb;background:var(--primary);border:none;box-shadow:0 20px 25px -5px #2563eb33,0 10px 10px -5px #2563eb1a;box-shadow:var(--hero-shadow);color:#fff;transform:scale(1.03)}.lesson-item.current .syllabus-meta{color:#dbeafe;color:var(--primary-light)}.lesson-item.current .syllabus-title{color:#fff;font-size:1.35rem;font-weight:600}.lesson-item.current .syllabus-footer{color:#fff}.lesson-item.current .syllabus-node svg{height:32px;width:32px}.lesson-item.locked{opacity:.6}.lesson-item.locked .syllabus-card{background:#f8fafc;border-color:#e2e8f0;border-color:var(--line-color);box-shadow:none;cursor:not-allowed}.lesson-item.locked .syllabus-node{box-shadow:none}.lesson-item.checkpoint .syllabus-node{border-color:#f59e0b;border-color:var(--checkpoint-color)}.lesson-item.checkpoint .syllabus-meta,.lesson-item.checkpoint .syllabus-node{color:#f59e0b;color:var(--checkpoint-color)}.lesson-item.checkpoint.completed .syllabus-node{background:#f59e0b;background:var(--checkpoint-color);border-color:#f59e0b;border-color:var(--checkpoint-color);color:#fff}.lesson-item.current.checkpoint .syllabus-node{background:#2563eb;background:var(--primary);border-color:#fff;color:#fff}.lesson-item.current.checkpoint .syllabus-meta{color:#dbeafe;color:var(--primary-light)}.lesson-item.current.checkpoint .syllabus-title{color:#fff}.syllabus-meta{color:#64748b;color:var(--text-muted);display:flex;font-size:.75rem;font-weight:800;justify-content:space-between;letter-spacing:.05em;margin-bottom:8px;text-transform:uppercase}.syllabus-title{color:#1e293b;color:var(--text-main);font-size:1.2rem;font-weight:600;line-height:1.3;margin:0 0 16px}.syllabus-footer{align-items:center;color:#64748b;color:var(--text-muted);display:flex;font-size:.85rem;font-weight:600;gap:12px}.syllabus-footer svg{height:16px;width:16px}.score-badge{align-items:center;color:#10b981;color:var(--success);display:flex;gap:4px}.start-button{background:#fff;border:none;border-radius:24px;box-shadow:0 4px 6px #0000001a;color:#2563eb;color:var(--primary);cursor:pointer;font-size:.8rem;font-weight:800;letter-spacing:.05em;margin-left:auto;padding:8px 24px;text-transform:uppercase;transition:all .2s ease}.start-button:hover{box-shadow:0 6px 12px #00000026;transform:translateY(-2px)}@keyframes pulse{0%{box-shadow:0 0 0 0 #2563eb66}70%{box-shadow:0 0 0 12px #2563eb00}to{box-shadow:0 0 0 0 #2563eb00}}.dsb-section-modal-overlay{align-items:center;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:1000}.dsb-section-modal{background:#fff;border-radius:24px;box-shadow:0 25px 50px -12px #00000040;display:flex;flex-direction:column;max-height:85vh;max-width:900px;overflow:hidden;width:100%}.dsb-section-modal-header{align-items:center;background:#f8fafc;border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:1.5rem 2rem}.dsb-section-modal-header h3{color:#1e293b;font-size:1.5rem;font-weight:800;margin:0}.dsb-section-modal-close{align-items:center;background:#e2e8f0;border:none;border-radius:50%;color:#64748b;cursor:pointer;display:flex;font-size:1.5rem;height:40px;justify-content:center;transition:all .2s ease;width:40px}.dsb-section-modal-close:hover{background:#cbd5e1;color:#1e293b}.dsb-section-cards{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));overflow-y:auto;padding:2rem}.dsb-section-card{background:#fff;border:2px solid #e2e8f0;border-radius:16px;cursor:pointer;display:flex;flex-direction:column;padding:1.5rem;transition:all .2s ease}.dsb-section-card:hover{border-color:#2563eb;border-color:var(--primary);box-shadow:0 10px 15px -3px #0000001a;transform:translateY(-4px)}.dsb-section-card.current{background:#eff6ff;border-color:#2563eb;border-color:var(--primary);box-shadow:0 0 0 4px #dbeafe;box-shadow:0 0 0 4px var(--primary-light)}.dsb-section-card-header{align-items:flex-start;display:flex;justify-content:space-between;margin-bottom:1rem}.dsb-section-card-header h4{color:#1e293b;font-size:1.25rem;font-weight:700;line-height:1.3;margin:0}.dsb-section-difficulty{background:#2563eb;background:var(--primary);border-radius:20px;color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.05em;padding:.25rem .75rem;text-transform:uppercase}.dsb-section-description{color:#64748b;flex-grow:1;font-size:.95rem;line-height:1.5;margin:0 0 auto}.dsb-section-card-footer{align-items:center;border-top:1px solid #e2e8f0;display:flex;font-size:.875rem;font-weight:600;justify-content:space-between;margin-top:1.5rem;padding-top:1rem}.dsb-section-subject{color:#2563eb;color:var(--primary)}.dsb-section-subject,.dsb-section-time{align-items:center;display:flex;gap:.5rem}.dsb-section-time{color:#64748b}@media (max-width:768px){.main-content{padding:0 1rem 110px}.dsb-lesson-header{border-radius:0 0 16px 16px;margin:0 -1rem 2rem;padding:1.25rem}.dsb-lesson-title{font-size:1.5rem}.dsb-lesson-details-left .dsb-section-name,.dsb-lesson-details-right{display:none}.syllabus-container{padding:0 10px}.lesson-item{margin-bottom:24px}.syllabus-node{height:48px;margin-right:16px;width:48px}.timeline-list:before,.timeline-progress-bar{left:24px}.syllabus-card{padding:16px}.syllabus-title{font-size:1.1rem;margin-bottom:12px}.lesson-item.current{margin:30px 0}.lesson-item.current .syllabus-node{height:60px;margin-left:-6px;width:60px}.start-button{font-size:.75rem;padding:6px 16px}}:root{--rs-primary:#3b82f6;--rs-primary-dark:#2563eb;--rs-primary-light:#eff6ff;--rs-secondary:#f59e0b;--rs-success:#10b981;--rs-error:#ef4444;--rs-bg-white:#fff;--rs-text-primary:#1f2937;--rs-text-secondary:#6b7280;--rs-border-color:#e5e7eb;--rs-card-shadow:0 2px 4px -1px #00000014,0 1px 2px -1px #0000000a}.right-sidebar{background-color:#fff;background-color:var(--rs-bg-white);border-left:1px solid #e5e7eb;border-left:1px solid var(--rs-border-color);display:flex;flex-direction:column;gap:1rem;overflow-y:auto;padding:1.25rem;width:280px}.rs-card{background:#fff;background:var(--rs-bg-white);border:1px solid #e5e7eb;border:1px solid var(--rs-border-color);border-radius:10px;box-shadow:0 2px 4px -1px #00000014,0 1px 2px -1px #0000000a;box-shadow:var(--rs-card-shadow);padding:1rem}.rs-card-header{align-items:center;display:flex;gap:.625rem;margin-bottom:.75rem}.rs-card-header h3{color:#1f2937;color:var(--rs-text-primary);font-size:1.0625rem;font-weight:600;margin:0}.rs-icon-primary{color:#3b82f6;color:var(--rs-primary)}.rs-progress-section{align-items:center;display:flex;flex-direction:column}.rs-progress-header{align-items:center;align-self:flex-start;display:flex;gap:.625rem;margin-bottom:.5rem}.rs-progress-header h3{color:#1f2937;color:var(--rs-text-primary);font-size:1.0625rem;font-weight:600;margin:0}.rs-progress-bg{fill:none;stroke:#e5e7eb;stroke:var(--rs-border-color);stroke-width:8}.rs-progress-fill{fill:none;stroke:#3b82f6;stroke:var(--rs-primary);stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset .8s ease}.rs-progress-text{fill:#3b82f6;fill:var(--rs-primary);font-size:1.375rem;font-weight:700}.rs-btn{align-items:center;border:none;border-radius:8px;cursor:pointer;display:flex;font-size:.875rem;font-weight:600;justify-content:center;padding:.625rem .875rem;transition:all .2s ease;width:100%}.rs-btn-primary{background:#3b82f6;background:var(--rs-primary);color:#fff}.rs-btn-primary:hover{background:#2563eb;background:var(--rs-primary-dark)}.rs-btn-secondary{background:#f59e0b;background:var(--rs-secondary);color:#fff}.rs-btn-secondary:hover{background:#d97706}.rs-btn-outline{background:#0000;border:1px solid #e5e7eb;border:1px solid var(--rs-border-color);color:#6b7280;color:var(--rs-text-secondary)}.rs-btn-outline:hover{background:#eff6ff;background:var(--rs-primary-light);border-color:#1f2937;border-color:var(--rs-text-primary)}.rs-btn-outline:hover,.rs-meeting-title{color:#1f2937;color:var(--rs-text-primary)}.rs-meeting-title{font-size:.9375rem;font-weight:600;margin-bottom:.375rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rs-meeting-time{align-items:center;color:#6b7280;color:var(--rs-text-secondary);display:flex;font-size:.8125rem;gap:.375rem;margin-bottom:.5rem}.rs-time-until{color:#3b82f6;color:var(--rs-primary);font-size:.9375rem;font-weight:700;margin-bottom:.75rem}.rs-empty-text{color:#6b7280;color:var(--rs-text-secondary);text-align:center}.rs-empty-text,.rs-homework-status{font-size:.875rem;margin-bottom:.75rem}.rs-homework-status{align-items:center;border-radius:8px;display:flex;font-weight:600;gap:.5rem;padding:.625rem}.rs-homework-status.pending{background:#fff7ed;color:#f59e0b;color:var(--rs-secondary)}.rs-homework-status.completed{background:#ecfdf5;color:#10b981;color:var(--rs-success)}.rs-upgrade-card{background:linear-gradient(to bottom right,#eff6ff,#fff);background:linear-gradient(to bottom right,var(--rs-primary-light),var(--rs-bg-white));border-color:#eff6ff;border-color:var(--rs-primary-light);padding:1.5rem 1rem;text-align:center}.rs-upgrade-icon{color:#3b82f6;color:var(--rs-primary);margin-bottom:.75rem}.rs-upgrade-card h3{color:#1f2937;color:var(--rs-text-primary);font-size:1.125rem;font-weight:700;margin-bottom:.5rem}.rs-upgrade-card p{color:#6b7280;color:var(--rs-text-secondary);font-size:.875rem;line-height:1.4;margin-bottom:1rem}.rs-loading-container{align-items:center;display:flex;height:150px;justify-content:center}.rs-spinner{animation:spin 1s linear infinite;color:#3b82f6;color:var(--rs-primary);height:28px;width:28px}:root{--hc-primary:#3b82f6;--hc-primary-dark:#2563eb;--hc-primary-light:#dbeafe;--hc-bg-light:#f9fafb;--hc-bg-white:#fff;--hc-text-primary:#1f2937;--hc-text-secondary:#6b7280;--hc-border-color:#e5e7eb;--hc-success:#10b981;--hc-warning:#f59e0b;--hc-error:#ef4444;--hc-card-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.hc-container{margin:0 auto;max-width:900px}.hc-header{margin-bottom:2rem;padding:2rem 0}.hc-header h1{color:#1f2937;color:var(--hc-text-primary);font-size:2rem;margin:0 0 .5rem}.hc-header p{color:#6b7280;color:var(--hc-text-secondary);font-size:1.125rem;margin:0}.hc-tabs{background:#fff;background:var(--hc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--hc-border-color);border-radius:12px;box-shadow:0 1px 3px #0000000d;display:flex;margin-bottom:2rem;padding:6px}.hc-tab-button{background:#0000;border:none;border-radius:8px;color:#6b7280;color:var(--hc-text-secondary);cursor:pointer;flex:1 1;font-size:.9375rem;font-weight:600;padding:.75rem 1rem;transition:all .2s ease}.hc-tab-button.hc-active{background:#dbeafe;background:var(--hc-primary-light);color:#2563eb;color:var(--hc-primary-dark)}.hc-tab-button:hover:not(.hc-active){background-color:#f9fafb;background-color:var(--hc-bg-light);color:#1f2937;color:var(--hc-text-primary)}.hc-error-message{background:#fee2e2;border:1px solid #fca5a5;border-radius:8px;color:#ef4444;color:var(--hc-error);font-weight:500;margin-bottom:1rem;padding:1rem}.hc-loading-state{align-items:center;background:#fff;background:var(--hc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--hc-border-color);border-radius:12px;display:flex;flex-direction:column;justify-content:center;padding:4rem}.hc-loading-spinner{animation:hc-spin 1s linear infinite;border:4px solid #f9fafb;border-top:4px solid #3b82f6;border:4px solid var(--hc-bg-light);border-radius:50%;border-top-color:var(--hc-primary);height:40px;margin-bottom:1rem;width:40px}@keyframes hc-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.hc-empty-state{background:#fff;background:var(--hc-bg-white);border:1px dashed #e5e7eb;border:1px dashed var(--hc-border-color);border-radius:12px;padding:4rem 2rem;text-align:center}.hc-empty-icon{color:#6b7280;color:var(--hc-text-secondary);margin-bottom:1rem;opacity:.6}.hc-empty-state h3{color:#1f2937;color:var(--hc-text-primary);font-size:1.25rem;font-weight:700;margin:0 0 .5rem}.hc-empty-state p{color:#6b7280;color:var(--hc-text-secondary);font-size:1rem;margin:0}.hc-upgrade-prompt{align-items:center;display:flex;height:100%;justify-content:center;min-height:500px}.hc-upgrade-content{background:#fff;background:var(--hc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--hc-border-color);border-radius:16px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;max-width:450px;padding:3rem 2rem;text-align:center}.hc-upgrade-content h2{color:#1f2937;color:var(--hc-text-primary);font-size:1.75rem;font-weight:800;margin:0 0 1rem}.hc-upgrade-content p{color:#6b7280;color:var(--hc-text-secondary);font-size:1.125rem;line-height:1.6;margin:0 0 2rem}.hc-upgrade-button{background:#3b82f6;background:var(--hc-primary);border:none;border-radius:8px;box-shadow:0 4px 6px -1px #3b82f633;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;padding:1rem 2rem;transition:background .2s ease}.hc-upgrade-button:hover{background:#2563eb;background:var(--hc-primary-dark)}.hc-assignments-list{display:flex;flex-direction:column;gap:1.5rem}.hc-assignment-card{background:#fff;background:var(--hc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--hc-border-color);border-radius:12px;padding:1.5rem;transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease}.hc-assignment-card:hover{border-color:#dbeafe;border-color:var(--hc-primary-light);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;box-shadow:var(--hc-card-shadow);transform:translateY(-2px)}.hc-assignment-content{align-items:flex-start;display:flex;gap:1.5rem;justify-content:space-between}.hc-assignment-main{flex:1 1}.hc-assignment-title-row{align-items:center;display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:.75rem}.hc-assignment-title{color:#1f2937;color:var(--hc-text-primary);font-size:1.25rem;font-weight:700;line-height:1.3;margin:0}.hc-lesson-state-badge{border-radius:9999px;font-size:.75rem;font-weight:700;letter-spacing:.05em;padding:.25rem .625rem;text-transform:uppercase}.hc-state-available{background:#fff7ed;color:#f59e0b;color:var(--hc-warning)}.hc-state-locked{background:#f9fafb;background:var(--hc-bg-light);color:#6b7280;color:var(--hc-text-secondary)}.hc-state-completed{background:#dcfce7;color:#10b981;color:var(--hc-success)}.hc-assignment-context{color:#3b82f6;color:var(--hc-primary);font-size:.9375rem;font-weight:600;margin-bottom:.75rem}.hc-assignment-description{color:#6b7280;color:var(--hc-text-secondary);font-size:1rem;line-height:1.5;margin:0 0 1rem}.hc-assignment-meta{align-items:center;color:#6b7280;color:var(--hc-text-secondary);display:flex;flex-wrap:wrap;font-size:.875rem;gap:1.25rem}.hc-meta-item{align-items:center;display:flex;font-weight:500;gap:.375rem}.hc-due-date{color:#1f2937;color:var(--hc-text-primary);font-weight:600}.hc-due-date.hc-overdue{color:#ef4444;color:var(--hc-error)}.hc-start-button{background:#3b82f6;background:var(--hc-primary);border:none;border-radius:8px;box-shadow:0 2px 4px #0000001a;color:#fff;cursor:pointer;font-size:.9375rem;font-weight:600;padding:.75rem 1.5rem;transition:all .2s ease;white-space:nowrap}.hc-start-button:hover:not(.locked){background:#2563eb;background:var(--hc-primary-dark);box-shadow:0 4px 6px #00000026;transform:translateY(-1px)}.hc-start-button.locked{background-color:#f9fafb;background-color:var(--hc-bg-light);border:1px solid #e5e7eb;border:1px solid var(--hc-border-color);box-shadow:none;color:#6b7280;color:var(--hc-text-secondary);cursor:not-allowed}.hc-progress-section{align-items:center;background-color:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;display:flex;justify-content:space-between;margin-top:1.5rem;padding:1rem}.hc-progress-header{align-items:center;color:#10b981;color:var(--hc-success);display:flex;font-size:1rem;font-weight:700;gap:.5rem}.hc-collect-gems-button{background:#10b981;background:var(--hc-success);border:none;border-radius:6px;box-shadow:0 2px 4px #0000001a;color:#fff;cursor:pointer;font-size:.875rem;font-weight:600;padding:.5rem 1rem;transition:background .2s ease}.hc-collect-gems-button:hover:not(:disabled){background:#059669}.hc-collect-gems-button:disabled{cursor:not-allowed;opacity:.7}@media (max-width:768px){.main-content{padding:1rem}.hc-container{padding:0}.hc-assignment-content{flex-direction:column;gap:1.25rem}.hc-assignment-title-row{align-items:flex-start;flex-direction:column;gap:.5rem}.hc-assignment-meta{align-items:flex-start;flex-direction:column;gap:.75rem}.hc-start-button{font-size:1rem;padding:1rem;width:100%}.hc-progress-section{align-items:flex-start;flex-direction:column;gap:1rem}.hc-collect-gems-button{width:100%}}:root{--mc-primary:#3b82f6;--mc-primary-dark:#2563eb;--mc-primary-light:#dbeafe;--mc-bg-light:#f9fafb;--mc-bg-white:#fff;--mc-text-primary:#1f2937;--mc-text-secondary:#6b7280;--mc-border-color:#e5e7eb;--mc-success:#10b981;--mc-error:#ef4444;--mc-hero-shadow:0 10px 15px -3px #3b82f61a,0 4px 6px -2px #3b82f60d}.mc-header{margin-bottom:2rem}.mc-header h2{color:#1f2937;color:var(--mc-text-primary);font-size:1.875rem;margin-bottom:.5rem}.mc-header p{color:#6b7280;color:var(--mc-text-secondary);font-size:1rem}.mc-error-content,.mc-loading{align-items:center;background-color:#fff;background-color:var(--mc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--mc-border-color);border-radius:.75rem;display:flex;flex-direction:column;justify-content:center;padding:4rem 2rem;text-align:center}.mc-spinner{animation:spin 1s linear infinite;color:#3b82f6;color:var(--mc-primary);height:40px;margin-bottom:1rem;width:40px}.mc-error-icon{color:#ef4444;color:var(--mc-error);height:48px;margin-bottom:1rem;width:48px}.mc-btn{align-items:center;border:none;border-radius:.5rem;cursor:pointer;display:inline-flex;font-size:.9375rem;font-weight:600;justify-content:center;padding:.625rem 1.25rem;transition:background-color .2s}.mc-btn-primary{background-color:#3b82f6;background-color:var(--mc-primary);color:#fff}.mc-btn-primary:hover{background-color:#2563eb;background-color:var(--mc-primary-dark)}.mc-btn-primary:disabled{cursor:not-allowed;opacity:.7}.mc-hero-section{margin-bottom:3rem}.mc-hero-section h3{color:#1f2937;color:var(--mc-text-primary);font-size:1.25rem;font-weight:720;margin-bottom:1.25rem}.mc-hero-card{align-items:center;background-color:#fff;background-color:var(--mc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--mc-border-color);border-radius:1rem;box-shadow:0 10px 15px -3px #3b82f61a,0 4px 6px -2px #3b82f60d;box-shadow:var(--mc-hero-shadow);display:flex;justify-content:space-between;overflow:hidden;padding:2rem;position:relative}.mc-hero-card:before{background-color:#3b82f6;background-color:var(--mc-primary);content:"";height:100%;left:0;position:absolute;top:0;width:6px}.mc-hero-content{flex:1 1}.mc-hero-header{align-items:center;display:flex;gap:.75rem;margin-bottom:.75rem}.mc-hero-label{background-color:#dbeafe;background-color:var(--mc-primary-light);border-radius:9999px;color:#3b82f6;color:var(--mc-primary);font-size:.875rem;font-weight:700;letter-spacing:.05em;padding:.25rem .75rem;text-transform:uppercase}.mc-hero-title{color:#1f2937;color:var(--mc-text-primary);font-size:1.75rem;font-weight:600;margin-bottom:1rem}.mc-hero-meta{color:#6b7280;color:var(--mc-text-secondary);display:flex;flex-wrap:wrap;font-size:1rem;gap:1.5rem;margin-bottom:1.5rem}.mc-hero-time-until{color:#3b82f6;color:var(--mc-primary);font-size:1.125rem;font-weight:600}.mc-hero-action{margin-left:2rem}.mc-hero-join-btn{font-size:1.125rem;min-width:12rem;padding:1rem 2rem}.mc-upcoming-section{margin-bottom:3rem}.mc-upcoming-section h3{color:#1f2937;color:var(--mc-text-primary);font-size:1.25rem;font-weight:700;margin-bottom:1.25rem}.mc-no-meetings{background-color:#f9fafb;background-color:var(--mc-bg-light);border:1px dashed #e5e7eb;border:1px dashed var(--mc-border-color);border-radius:.75rem;padding:3rem;text-align:center}.mc-no-meetings-icon{color:#6b7280;color:var(--mc-text-secondary);display:block;height:48px;margin-bottom:1rem;margin-left:auto;margin-right:auto;width:48px}.mc-meetings-list{display:flex;flex-direction:column;gap:1rem}.mc-meeting-card{align-items:center;background-color:#fff;background-color:var(--mc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--mc-border-color);border-radius:.75rem;display:flex;justify-content:space-between;padding:1.25rem;transition:box-shadow .2s,border-color .2s}.mc-meeting-card:hover{border-color:#3b82f6;border-color:var(--mc-primary);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.mc-card-left{align-items:flex-start;display:flex;flex:1 1;gap:1.25rem}.mc-meeting-date-box{align-items:center;background-color:#f9fafb;background-color:var(--mc-bg-light);border:1px solid #e5e7eb;border:1px solid var(--mc-border-color);border-radius:.5rem;display:flex;flex-direction:column;justify-content:center;min-width:4.5rem;padding:.5rem 1rem}.mc-date-month{color:#6b7280;color:var(--mc-text-secondary);font-size:.875rem;font-weight:600;line-height:1;text-transform:uppercase}.mc-date-day{color:#1f2937;color:var(--mc-text-primary);font-size:1.75rem;font-weight:700;line-height:1.2}.mc-meeting-info{flex:1 1}.mc-meeting-header{align-items:center;display:flex;gap:.75rem;margin-bottom:.375rem}.mc-meeting-number{color:#3b82f6;color:var(--mc-primary);font-size:.875rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}.mc-status-badge{border-radius:9999px;font-size:.75rem;font-weight:700;padding:.25rem .5rem;text-transform:uppercase}.mc-status-badge.live{background-color:#dcfce7;color:#10b981;color:var(--mc-success)}.mc-meeting-title{color:#1f2937;color:var(--mc-text-primary);font-size:1.125rem;font-weight:700;margin-bottom:.75rem}.mc-meeting-meta{color:#6b7280;color:var(--mc-text-secondary);display:flex;flex-wrap:wrap;font-size:.875rem;gap:1rem}.mc-meta-item{align-items:center;display:flex;gap:.375rem}.mc-card-right{align-items:flex-end;display:flex;flex-direction:column;gap:.75rem;margin-left:1.5rem}.mc-time-until{font-size:.9375rem;font-weight:600}.mc-classroom-info h3,.mc-time-until{color:#1f2937;color:var(--mc-text-primary)}.mc-classroom-info h3{font-size:1.25rem;font-weight:700;margin-bottom:1.5rem}.mc-features-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.mc-feature{align-items:flex-start;background-color:#fff;background-color:var(--mc-bg-white);border:1px solid #e5e7eb;border:1px solid var(--mc-border-color);border-radius:.75rem;display:flex;gap:1rem;padding:1.25rem}.mc-feature-icon-container{align-items:center;background-color:#f9fafb;background-color:var(--mc-bg-light);border-radius:.5rem;display:flex;justify-content:center;padding:.75rem}.mc-feature-icon{color:#3b82f6;color:var(--mc-primary);height:24px;width:24px}.mc-feature-text h4{color:#1f2937;color:var(--mc-text-primary);font-size:1rem;font-weight:600;margin-bottom:.25rem}.mc-feature-text p{color:#6b7280;color:var(--mc-text-secondary);font-size:.875rem;line-height:1.4}@media (max-width:768px){.main-content{padding:1rem}.mc-hero-card{align-items:stretch;flex-direction:column;gap:1.5rem;padding:1.5rem}.mc-hero-action{margin-left:0}.mc-hero-join-btn{width:100%}.mc-meeting-card{align-items:stretch;flex-direction:column;gap:1.25rem}.mc-card-left{align-items:flex-start;flex-direction:column}.mc-meeting-date-box{flex-direction:row;gap:.5rem;margin-bottom:.75rem;min-width:auto;padding:.375rem .75rem}.mc-date-day{font-size:1.25rem}.mc-card-right{align-items:center;border-top:1px solid #e5e7eb;border-top:1px solid var(--mc-border-color);flex-direction:row;justify-content:space-between;margin-left:0;padding-top:1rem}}.lm-lesson-manager{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:hidden}.lm-lesson-manager-loading{color:#64748b;padding:4rem;text-align:center}.lm-lesson-manager-header{background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0;padding:2rem}.lm-lesson-manager-header h2{color:#1e293b;font-size:1.8rem;font-weight:600;margin:0 0 .5rem}.lm-lesson-manager-header p{color:#64748b;margin:0}.lm-lesson-manager-content{display:flex;min-height:600px}.lm-sections-sidebar{background:#f8fafc;border-right:1px solid #e2e8f0;overflow-y:auto;width:300px}.lm-sections-sidebar h3{border-bottom:1px solid #e2e8f0;color:#374151;font-size:1.1rem;font-weight:600;margin:0;padding:1.5rem}.lm-sections-list{padding:1rem}.lm-section-item{background:#fff;border:1px solid #e2e8f0;border-radius:8px;cursor:pointer;margin-bottom:.75rem;padding:1rem;transition:all .2s ease}.lm-section-item:hover{border-color:#3b82f6;box-shadow:0 2px 8px #3b82f61a;transform:translateY(-1px)}.lm-section-item.active{background:#eff6ff;border-color:#3b82f6;box-shadow:0 2px 8px #3b82f626}.lm-section-header{align-items:start;display:flex;justify-content:space-between;margin-bottom:.5rem}.lm-section-header h4{color:#1e293b;font-size:1rem;font-weight:600;margin:0}.lm-section-subject{background:#3b82f6;border-radius:4px;color:#fff;font-size:.75rem;font-weight:500;padding:.25rem .5rem}.lm-section-description{color:#64748b;font-size:.875rem;line-height:1.4;margin:0}.lm-main-content{flex:1 1;overflow-y:auto;padding:2rem}.lm-empty-selection{color:#64748b;padding:4rem 2rem;text-align:center}.lm-empty-selection h3{color:#374151;margin:0 0 1rem}.lm-empty-state{color:#9ca3af;font-style:italic;padding:2rem;text-align:center}.lm-units-section{margin-bottom:3rem}.lm-units-section h3{color:#1e293b;font-size:1.3rem;font-weight:600;margin:0 0 1.5rem}.lm-units-grid{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.lm-unit-card{background:#fff;border:2px solid #e2e8f0;border-radius:8px;cursor:pointer;padding:1.5rem;transition:all .2s ease}.lm-unit-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px #3b82f61a;transform:translateY(-2px)}.lm-unit-card.active{background:#eff6ff;border-color:#3b82f6;box-shadow:0 44px 12px #3b82f626}.lm-unit-card h4{color:#1e293b;font-size:1.1rem;font-weight:600;margin:0 0 .75rem}.lm-unit-card p{color:#64748b;font-size:.875rem;line-height:1.4;margin:0 0 1rem}.lm-unit-meta{color:#9ca3af;display:flex;font-size:.75rem;font-weight:500;gap:1rem}.lm-lessons-section h3{color:#1e293b;font-size:1.3rem;font-weight:600;margin:0 0 1.5rem}.lm-lessons-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1.5rem}.lm-lessons-list{display:flex;flex-direction:column;gap:1rem}.lm-lesson-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:1.5rem;transition:all .2s ease}.lm-lesson-card:hover{border-color:#3b82f6;box-shadow:0 2px 8px #3b82f61a}.lm-lesson-header{align-items:start;display:flex;justify-content:space-between;margin-bottom:.75rem}.lm-lesson-header h4{color:#1e293b;font-size:1.1rem;font-weight:600;margin:0}.lm-lesson-actions{display:flex;gap:.5rem}.lm-lesson-description{color:#64748b;line-height:1.4;margin:0 0 1rem}.lm-lesson-meta{color:#9ca3af;display:flex;font-size:.75rem;font-weight:500;gap:1rem}.lm-lesson-title-with-handle{align-items:center;display:flex;gap:.75rem}.lm-drag-handle{font-size:1.2rem}.lm-lesson-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(2deg)}.lm-lessons-list.dragging-over{background:#f8fafc;border-radius:8px;margin:-.5rem;padding:.5rem}.lm-unit-header{align-items:center;display:flex;gap:.75rem;margin-bottom:.75rem}.lm-unit-drag-handle{position:absolute;right:.75rem;top:.75rem;z-index:1}.lm-unit-card{position:relative}.lm-unit-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(1deg) scale(1.02)}.lm-units-grid.dragging-over{background:#f8fafc;border-radius:8px;margin:-.5rem;padding:.5rem}.section-manager{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:hidden}.section-manager-loading{color:#64748b;padding:4rem;text-align:center}.section-manager-header{align-items:center;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:2rem}.section-manager-header h2{color:#1e293b;font-size:1.8rem;font-weight:600;margin:0 0 .5rem}.section-manager-header p{color:#64748b;margin:0}.sections-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));padding:2rem}.section-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;transition:all .2s ease}.section-card:hover{border-color:#3b82f6;box-shadow:0 8px 25px #3b82f61a;transform:translateY(-2px)}.section-card-header{align-items:start;display:flex;justify-content:space-between;margin-bottom:1rem}.section-card-header h3{color:#1e293b;font-size:1.2rem;font-weight:600;margin:0 0 .5rem}.section-subject{background:#3b82f6;border-radius:6px;color:#fff;font-size:.75rem;font-weight:500;padding:.25rem .75rem}.section-actions{display:flex;gap:.5rem}.section-description{color:#64748b;line-height:1.5;margin:0 0 1rem}.section-meta{display:flex;flex-wrap:wrap;font-size:.75rem;font-weight:500;gap:.75rem}.section-meta span{background:#f1f5f9;border-radius:4px;color:#475569;padding:.25rem .5rem}.section-difficulty{background:#fef3c7!important;color:#92400e!important}.section-hours{background:#ddd6fe!important;color:#5b21b6!important}.section-order{background:#ecfdf5!important;color:#065f46!important}.section-status.published{background:#dcfce7!important;color:#166534!important}.section-status.draft{background:#fee2e2!important;color:#991b1b!important}.section-form{max-height:calc(90vh - 120px);overflow-y:auto;padding:2rem}.section-title-with-handle{align-items:flex-start;display:flex;gap:.75rem}.section-drag-handle{border-radius:4px;color:#9ca3af;cursor:grab;font-size:1.2rem;margin-top:.1rem;padding:.25rem;transition:all .2s ease;-webkit-user-select:none;user-select:none}.section-drag-handle:hover{background:#f1f5f9;color:#3b82f6}.section-drag-handle:active{cursor:grabbing}.section-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(1deg) scale(1.02)}.sections-grid.dragging-over{background:#f8fafc;border-radius:8px;margin:-.5rem;padding:.5rem}.unit-manager{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:hidden}.unit-manager-loading{color:#64748b;padding:4rem;text-align:center}.unit-manager-header{align-items:center;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:2rem}.unit-manager-header h2{color:#1e293b;font-size:1.8rem;font-weight:600;margin:0 0 .5rem}.unit-manager-header p{color:#64748b;margin:0}.header-actions{align-items:center;display:flex;gap:1rem}.section-selector{background:#fff;border:1px solid #d1d5db;border-radius:6px;font-size:.875rem;min-width:200px;padding:.75rem 1rem}.section-selector:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a;outline:none}.selected-section-info{background:#f8fafc;border-bottom:1px solid #e2e8f0;padding:1.5rem 2rem}.selected-section-info h3{color:#374151;font-size:1.2rem;font-weight:600;margin:0 0 .5rem}.selected-section-info p{color:#64748b;margin:0}.empty-state p{margin:0 0 1rem}.units-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));padding:2rem}.unit-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.5rem;transition:all .2s ease}.unit-card:hover{border-color:#3b82f6;box-shadow:0 8px 25px #3b82f61a;transform:translateY(-2px)}.unit-card-header{align-items:start;display:flex;justify-content:space-between;margin-bottom:1rem}.unit-card-header h3{color:#1e293b;font-size:1.2rem;font-weight:600;margin:0 0 .5rem}.unit-order{background:#10b981;border-radius:6px;color:#fff;font-size:.75rem;font-weight:500;padding:.25rem .75rem}.unit-actions{display:flex;gap:.5rem}.unit-description{color:#64748b;line-height:1.5;margin:0 0 1rem}.unit-meta{display:flex;flex-wrap:wrap;font-size:.75rem;font-weight:500;gap:.75rem}.unit-meta span{background:#f1f5f9;border-radius:4px;color:#475569;padding:.25rem .5rem}.unit-hours{background:#ddd6fe!important;color:#5b21b6!important}.unit-status.published{background:#dcfce7!important;color:#166534!important}.unit-status.draft{background:#fee2e2!important;color:#991b1b!important}.form-modal{box-shadow:0 25px 50px -12px #00000040;width:90vw}.form-header{background:#f8fafc}.form-header h3{font-size:1.3rem}.unit-form{max-height:calc(90vh - 120px);overflow-y:auto;padding:2rem}.form-group input,.form-group select,.form-group textarea{transition:border-color .2s ease}.selected-section{background:#f1f5f9;border:1px solid #e2e8f0;border-radius:6px;color:#374151;font-weight:500;padding:.75rem}.form-actions{margin-top:1.5rem}.btn-sm{padding:.375rem .75rem}.unit-title-with-handle{align-items:flex-start;display:flex;gap:.75rem}.unit-drag-handle{border-radius:4px;color:#9ca3af;cursor:grab;font-size:1.2rem;margin-top:.1rem;padding:.25rem;transition:all .2s ease;-webkit-user-select:none;user-select:none}.unit-drag-handle:hover{background:#f1f5f9;color:#3b82f6}.unit-drag-handle:active{cursor:grabbing}.unit-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(1deg) scale(1.02)}.units-grid.dragging-over{background:#f8fafc;border-radius:8px;margin:-.5rem;padding:.5rem}.cm-container{height:100vh;overflow:hidden;position:relative;width:100%}.cm-container,.cm-sidebar{background:#fff;display:flex}.cm-sidebar{border-right:1px solid #e5e7eb;flex-direction:column;flex-shrink:0;height:100%;width:280px}.cm-sidebar-header{background:#f8fafc;border-bottom:1px solid #e5e7eb;padding:1.5rem}.cm-sidebar-header h3{color:#1e293b;font-size:1.25rem;font-weight:600;margin:0}.cm-cohort-list{display:flex;flex:1 1;flex-direction:column;gap:.5rem;overflow-y:auto;padding:1rem}.cm-cohort-item{background:#fff;border:1px solid #e5e7eb;border-radius:8px;cursor:pointer;padding:1rem;transition:all .2s ease}.cm-cohort-item:hover{border-color:#2563eb;box-shadow:0 4px 6px -1px #0000000d;transform:translateY(-1px)}.cm-cohort-item.active{background:#eff6ff;border-color:#2563eb;box-shadow:0 0 0 2px #2563eb1a}.cm-cohort-name{color:#1e293b;font-size:1rem;font-weight:600;margin-bottom:.25rem}.cm-cohort-schedule{color:#64748b;font-size:.75rem;margin-bottom:.5rem}.cm-cohort-students{color:#2563eb;font-size:.8rem;font-weight:500}.cm-main{display:flex;flex:1 1;flex-direction:column;height:100%;overflow:hidden;width:100%}.cm-header{align-items:center;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;flex-shrink:0;justify-content:space-between;padding:1.5rem 2rem}.cm-header h2{color:#1e293b;font-size:1.5rem;font-weight:700;margin:0}.cm-tutor-info{color:#64748b;font-size:.875rem;margin-top:.25rem}.cm-tabs{background:#f1f5f9;border-radius:8px;display:flex;gap:.5rem;padding:.25rem}.cm-tab-btn{background:#0000;border:none;border-radius:6px;color:#64748b;cursor:pointer;font-size:.875rem;font-weight:600;padding:.5rem 1rem;transition:all .2s ease}.cm-tab-btn:hover{background:#ffffff80;color:#1e293b}.cm-tab-btn.active{background:#fff;box-shadow:0 1px 3px #0000001a;color:#2563eb}.cm-empty,.cm-error,.cm-loading{align-items:center;color:#64748b;display:flex;flex-direction:column;height:100%;justify-content:center;padding:2rem;text-align:center}.cm-btn{align-items:center;border:none;border-radius:8px;cursor:pointer;display:inline-flex;font-size:.9rem;font-weight:600;gap:.5rem;padding:.6rem 1.2rem;transition:all .2s}.cm-btn-primary{background:#2563eb;color:#fff}.cm-btn-primary:hover:not(:disabled){background:#1d4ed8}.cm-btn-primary:disabled{background:#94a3b8;cursor:not-allowed}.cm-btn-secondary{background:#fff;border:1px solid #e2e8f0;color:#1e293b}.cm-btn-secondary:hover{background:#f8fafc}.cm-btn-danger{background:#fee2e2;color:#dc2626}.cm-btn-danger:hover{background:#fecaca}.cm-students-view{flex:1 1;overflow-y:auto;padding:2rem}.cm-student-list{display:flex;flex-direction:column;gap:1rem}.cm-student-row{align-items:center;background:#fff;border:1px solid #e5e7eb;border-radius:12px;cursor:pointer;display:flex;justify-content:space-between;padding:1.5rem;transition:all .2s}.cm-student-row:hover{border-color:#2563eb;box-shadow:0 4px 6px -1px #0000000d;transform:translateY(-2px)}.cm-student-info h4{color:#1e293b;font-size:1.1rem;margin:0 0 .25rem}.cm-student-info p{color:#64748b;font-size:.9rem;margin:0}.cm-student-stats{display:flex;gap:2rem}.cm-stat-box{text-align:center}.cm-stat-label{color:#64748b;display:block;font-size:.75rem;text-transform:uppercase}.cm-stat-val{color:#1e293b;font-size:1rem;font-weight:700}.cm-detail-header{margin-bottom:2rem}.cm-back-link{align-items:center;background:none;border:none;color:#64748b;cursor:pointer;display:flex;font-size:.9rem;gap:.5rem;margin-bottom:1rem}.cm-back-link:hover{color:#2563eb}.cm-detail-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.cm-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem}.cm-card h4{border-bottom:2px solid #2563eb;color:#1e293b;display:inline-block;font-size:1.1rem;margin:0 0 1rem;padding-bottom:.5rem}.cm-homework-view{display:flex;flex:1 1;flex-direction:column;height:100%;overflow:hidden}.cm-homework-controls{align-items:center;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;flex-shrink:0;gap:1.5rem;justify-content:space-between;padding:1.5rem 2rem}.cm-control-group{display:flex;gap:1rem}.cm-control-group label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem}.cm-date-input{border:1px solid #e5e7eb;border-radius:6px;padding:.6rem}.cm-homework-content{flex:1 1;overflow-y:auto;padding:2rem}.cm-section{border:1px solid #e5e7eb;border-radius:8px;margin-bottom:1.5rem;overflow:hidden}.cm-section-header{align-items:center;background:#f8fafc;cursor:pointer;display:flex;justify-content:space-between;padding:1rem}.cm-section-title{align-items:center;color:#1e293b;display:flex;font-weight:600;gap:.5rem}.cm-unit{border-top:1px solid #e5e7eb}.cm-unit-header{align-items:center;background:#fff;cursor:pointer;display:flex;justify-content:space-between;padding:.75rem 1rem}.cm-lesson-grid{grid-gap:1rem;background:#fafafa;display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));padding:1rem}.cm-lesson-card{background:#fff;border:1px solid #e5e7eb;border-radius:6px;cursor:pointer;padding:1rem;position:relative;transition:all .2s}.cm-lesson-card:hover{border-color:#2563eb;transform:translateY(-2px)}.cm-lesson-card.selected{background:#eff6ff;border-color:#2563eb}.cm-lesson-card.assigned{background:#f0fdf4;border-color:#22c55e}.cm-select-check{align-items:center;border:2px solid #e5e7eb;border-radius:4px;color:#fff;display:flex;font-size:.8rem;height:20px;justify-content:center;position:absolute;right:.5rem;top:.5rem;width:20px}.cm-lesson-card.selected .cm-select-check{background:#2563eb;border-color:#2563eb}.cm-meetings-view{flex:1 1;overflow-y:auto;padding:2rem}.cm-stats-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:2rem}.cm-stat-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem;text-align:center}.cm-stat-card h4{color:#64748b;font-size:.875rem;letter-spacing:1px;margin:0 0 .5rem;text-transform:uppercase}.cm-stat-card .value{color:#2563eb;font-size:2rem;font-weight:700}.cm-table{background:#fff;border:1px solid #e5e7eb;border-collapse:collapse;border-radius:8px;overflow:hidden;width:100%}.cm-table th{background:#f8fafc;color:#475569;font-weight:600;text-align:left}.cm-table td,.cm-table th{border-bottom:1px solid #e5e7eb;padding:1rem}.cm-table td{color:#1e293b}.cm-table tr:last-child td{border-bottom:none}.cm-table tr:hover{background:#f8fafc}.cm-status-badge{border-radius:100px;font-size:.75rem;font-weight:600;padding:.25rem .75rem;text-transform:uppercase}.cm-status-scheduled{background:#f1f5f9;color:#475569}.cm-status-live{background:#fee2e2;color:#dc2626}.cm-status-completed{background:#dcfce7;background-color:#dcfce7;color:#16a34a}.cm-status-overdue{background-color:#fee2e2;color:#dc2626}.cm-status-assigned{background-color:#f3f4f6;color:#64748b}.cm-status-in-progress{background-color:#dbeafe;color:#2563eb}.meetings-manager{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:hidden}.meetings-manager-loading{color:#64748b;padding:4rem;text-align:center}.meetings-manager-loading .spinner{animation:spin 1s linear infinite;border:3px solid #e2e8f0;border-radius:50%;border-top-color:#3b82f6;height:32px;margin:0 auto 1rem;width:32px}.meetings-manager-header{align-items:center;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:2rem}.meetings-manager-header h2{color:#1e293b;font-size:1.8rem;font-weight:600;margin:0 0 .5rem}.meetings-manager-header p{color:#64748b;font-size:1rem;margin:0}.empty-state{color:#64748b;padding:4rem 2rem}.empty-state h3{color:#374151;font-size:1.5rem;margin:0 0 1rem}.empty-state p{font-size:1.1rem;margin:0 0 2rem}.meetings-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,minmax(400px,1fr));padding:2rem}.meeting-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 1px 3px #0000000d;overflow:hidden;transition:all .2s ease}.meeting-card:hover{border-color:#3b82f6;box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.meeting-card-header{align-items:center;background:linear-gradient(135deg,#f1f5f9,#e2e8f0);border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:1rem 1.5rem}.meeting-badges{align-items:center;display:flex;flex-wrap:wrap;gap:.5rem}.meeting-number{background:#64748b1a;color:#64748b}.default-assignment,.meeting-number{border-radius:20px;font-size:.75rem;font-weight:600;padding:.25rem .75rem}.default-assignment{background:#0596691a;color:#059669}.meeting-actions{display:flex;gap:.5rem}.meeting-card-content{padding:1.5rem}.meeting-title{color:#1e293b;font-size:1.25rem;font-weight:600;line-height:1.3;margin:0 0 .75rem}.meeting-description{color:#64748b;font-size:.95rem;line-height:1.5;margin:0 0 1.5rem}.meeting-stats{grid-gap:.75rem;display:grid;gap:.75rem;grid-template-columns:1fr 1fr}.stat{align-items:center;background:#f8fafc;border-radius:6px;display:flex;font-size:.875rem;justify-content:space-between;padding:.5rem}.stat-label{color:#64748b;font-weight:500}.stat-value{color:#1e293b;font-weight:600}.meeting-card-footer{background:#f8fafc;border-top:1px solid #e2e8f0;display:flex;gap:.75rem;padding:1rem 1.5rem}.meeting-card-footer .btn{flex:1 1}.form-overlay{align-items:center;background:#00000080;bottom:0;display:flex;justify-content:center;left:0;padding:1rem;position:fixed;right:0;top:0;z-index:1000}.form-modal{background:#fff;border-radius:12px;box-shadow:0 10px 25px #0003;display:flex;flex-direction:column;max-height:90vh;max-width:500px;overflow:hidden;width:100%}.form-header{align-items:center;background:linear-gradient(135deg,#f8fafc,#e2e8f0);border-bottom:1px solid #e2e8f0;display:flex;justify-content:space-between;padding:1.5rem 2rem}.form-header h3{color:#1e293b;font-size:1.5rem;font-weight:600;margin:0}.close-btn{color:#64748b;font-size:1.5rem;padding:.25rem;transition:all .2s ease}.close-btn:hover{background:#0000001a}.meeting-form{flex:1 1;overflow-y:auto;padding:2rem}.form-group label{font-size:.95rem}.form-group input,.form-group textarea{border:1px solid #d1d5db;border-radius:6px;box-sizing:border-box;font-size:.95rem;padding:.75rem;transition:border-color .2s ease;width:100%}.form-group input:focus,.form-group textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a;outline:none}.form-group textarea{min-height:80px;resize:vertical}.form-group small{color:#64748b;font-size:.875rem}.form-actions .btn{flex:1 1}.btn{font-size:.95rem}.btn-primary:hover{transform:translateY(-1px)}.btn-secondary{background:#64748b}.btn-secondary:hover{background:#475569}.btn-outline{background:#0000;color:#64748b}.btn-outline:hover{background:#f8fafc;border-color:#3b82f6;color:#3b82f6}.btn-sm{font-size:.875rem}@media (max-width:768px){.meetings-grid{grid-template-columns:1fr;padding:1rem}.meeting-card-header,.meetings-manager-header{flex-direction:column;gap:1rem;text-align:center}.meeting-actions{justify-content:center}.meeting-stats{grid-template-columns:1fr}.meeting-card-footer{flex-direction:column}.form-modal{border-radius:0;height:100vh;margin:0;max-height:none}}.movable-container{position:relative}.movable-container.move-mode{cursor:crosshair}.movable-item{position:relative;transition:opacity .2s ease,filter .2s ease,background-color .2s ease,border-color .2s ease}.movable-item.being-moved{filter:brightness(.8);opacity:.6}.movable-item.dimmed{filter:grayscale(.3);opacity:.4}.movable-item-content{height:100%;width:100%}.move-button{align-items:center;background:#3b82f6;border:none;border-radius:4px;box-shadow:0 2px 4px #0000001a;color:#fff;cursor:pointer;display:flex;font-size:12px;height:24px;justify-content:center;opacity:0;position:absolute;transition:opacity .2s ease,background-color .2s ease;width:24px;z-index:100}.movable-item:hover .move-button{opacity:1}.move-button.cancel{background:#ef4444;opacity:1}.move-button:hover{background:#2563eb}.move-button.cancel:hover{background:#dc2626}.move-button-top-right{right:4px;top:4px}.move-button-top-left{left:4px;top:4px}.move-button-bottom-right{bottom:4px;right:4px}.move-button-bottom-left{bottom:4px;left:4px}.move-gap-detector{align-items:center;cursor:pointer;display:flex;flex-shrink:0;justify-content:center;min-height:8px;min-width:8px;transition:all .2s ease}.movable-container.move-mode .move-gap-detector:hover{background:#3b82f61a;border-radius:4px}.move-placeholder{animation:pulse-placeholder 1.5s ease-in-out infinite;background:#3b82f60d;border:2px dashed #3b82f6;border-radius:6px;margin:4px 0;min-height:60px;transition:all .2s ease}.move-placeholder,.move-placeholder-content{align-items:center;display:flex;justify-content:center;width:100%}.move-placeholder-content{height:100%}.move-placeholder-plus{align-items:center;color:#3b82f6;display:flex;font-size:24px;font-weight:700;justify-content:center}@keyframes pulse-placeholder{0%,to{background:#3b82f60d;border-color:#3b82f6}50%{background:#3b82f61a;border-color:#2563eb}}@media (max-width:768px){.move-button{font-size:14px;height:28px;width:28px}.move-placeholder{min-height:50px}.move-placeholder-plus{font-size:20px;height:28px;width:28px}}.movable-container.flex-layout{align-items:flex-start;display:flex;flex-wrap:wrap;gap:.75rem}.movable-container.flex-layout .move-gap-detector{align-self:stretch;height:auto;min-width:16px}.movable-container.grid-layout{grid-gap:.75rem;display:grid;gap:.75rem}.movable-container.grid-layout .move-gap-detector{min-height:16px;width:auto}.movable-wrapper{position:relative}.movable-wrapper.has-pending-moves{padding-bottom:80px}.movable-item.preview-move{background:#fef3c7;border:2px dashed #f59e0b;opacity:.8}.movable-item.preview-move .movable-item-content{filter:brightness(.95)}.batch-actions-fixed{bottom:20px;left:50%;pointer-events:none;position:fixed;transform:translateX(-50%);z-index:9999}.batch-actions-container{align-items:center;animation:slideUpIn .3s ease-out;background:#fff;border:2px solid #3b82f6;border-radius:12px;box-shadow:0 10px 25px #00000026;display:flex;gap:16px;padding:12px 16px;pointer-events:auto}.batch-actions-info{color:#374151;font-size:14px;font-weight:500}.batch-actions-buttons{display:flex;gap:8px}.batch-action-btn{align-items:center;border:none;border-radius:6px;cursor:pointer;display:flex;font-size:14px;font-weight:500;gap:4px;padding:8px 16px;transition:all .2s ease}.batch-action-btn:disabled{cursor:not-allowed;opacity:.6}.batch-cancel-btn{background:#f3f4f6;border:1px solid #d1d5db;color:#374151}.batch-cancel-btn:hover:not(:disabled){background:#e5e7eb}.batch-confirm-btn{background:#3b82f6;color:#fff}.batch-confirm-btn:hover:not(:disabled){background:#2563eb}@keyframes slideUpIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.batch-actions-container{gap:12px;padding:10px 12px}.batch-actions-info{font-size:13px}.batch-action-btn{font-size:13px;padding:6px 12px}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_AMS-Regular.73ea273a72f4aca30ca5.woff2) format("woff2"),url(/static/media/KaTeX_AMS-Regular.d562e886c52f12660a41.woff) format("woff"),url(/static/media/KaTeX_AMS-Regular.853be92419a6c3766b9a.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Caligraphic-Bold.a1abf90dfd72792a577a.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Bold.d757c535a2e5902f1325.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Bold.7489a2fbfb9bfe704420.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Caligraphic-Regular.d6484fce1ef428d5bd94.woff2) format("woff2"),url(/static/media/KaTeX_Caligraphic-Regular.db074fa22cf224af93d7.woff) format("woff"),url(/static/media/KaTeX_Caligraphic-Regular.7e873d3833eb108a0758.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Fraktur-Bold.931d67ea207ab37ee693.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Bold.354501bac435c3264834.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Bold.4c761b3711973ab04edf.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Fraktur-Regular.172d3529b26f8cedef6b.woff2) format("woff2"),url(/static/media/KaTeX_Fraktur-Regular.6fdf0ac577be0ba82a4c.woff) format("woff"),url(/static/media/KaTeX_Fraktur-Regular.ed305b5434865e06ffde.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/static/media/KaTeX_Main-Bold.39890742bc957b368704.woff2) format("woff2"),url(/static/media/KaTeX_Main-Bold.0c3b8929d377c0e9b2f3.woff) format("woff"),url(/static/media/KaTeX_Main-Bold.8169508bf58f8bd92ad8.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Main-BoldItalic.20f389c4120be058d80a.woff2) format("woff2"),url(/static/media/KaTeX_Main-BoldItalic.428978dc7837d46de091.woff) format("woff"),url(/static/media/KaTeX_Main-BoldItalic.828abcb200061cffbaae.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Main-Italic.fe2176f79edaa716e621.woff2) format("woff2"),url(/static/media/KaTeX_Main-Italic.fd947498bc16392e76c2.woff) format("woff"),url(/static/media/KaTeX_Main-Italic.fa675e5e4bec9eb250b6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Main-Regular.f650f111a3b890d116f1.woff2) format("woff2"),url(/static/media/KaTeX_Main-Regular.4f35fbcc9ee8614c2bcc.woff) format("woff"),url(/static/media/KaTeX_Main-Regular.9eba1d77abcf2aa6e94e.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/static/media/KaTeX_Math-BoldItalic.dcbcbd93bac0470b462d.woff2) format("woff2"),url(/static/media/KaTeX_Math-BoldItalic.3f07ed67f06c720120ce.woff) format("woff"),url(/static/media/KaTeX_Math-BoldItalic.bf2d440b3a42ea78a998.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/static/media/KaTeX_Math-Italic.6d3d25f4820d0da8f01f.woff2) format("woff2"),url(/static/media/KaTeX_Math-Italic.96759856b4e70f3a8338.woff) format("woff"),url(/static/media/KaTeX_Math-Italic.8a5f936332e8028c7278.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:700;src:url(/static/media/KaTeX_SansSerif-Bold.95591a929f0d32aa282a.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Bold.b9cd458ac6d5889ff9c3.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Bold.5b49f4993ae22d7975b4.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:italic;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Italic.7d393d382f3e7fb1c637.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Italic.8d593cfaa96238d5e2f8.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Italic.b257a18c016f37ee4543.ttf) format("truetype")}@font-face{font-display:block;font-family:"KaTeX_SansSerif";font-style:normal;font-weight:400;src:url(/static/media/KaTeX_SansSerif-Regular.cd5e231e0cc53b2cb2c0.woff2) format("woff2"),url(/static/media/KaTeX_SansSerif-Regular.02271ec5cb9f5b4588ac.woff) format("woff"),url(/static/media/KaTeX_SansSerif-Regular.2f7bc363fc5424ebda59.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Script-Regular.c81d1b2a4b75d3eded60.woff2) format("woff2"),url(/static/media/KaTeX_Script-Regular.073b3402d036714b4370.woff) format("woff"),url(/static/media/KaTeX_Script-Regular.fc9ba5249878cd8f8d88.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size1-Regular.6eec866c69313624be60.woff2) format("woff2"),url(/static/media/KaTeX_Size1-Regular.0108e89c9003e8c14ea3.woff) format("woff"),url(/static/media/KaTeX_Size1-Regular.6de7d4b539221a49e9e2.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size2-Regular.2960900c4f271311eb36.woff2) format("woff2"),url(/static/media/KaTeX_Size2-Regular.3a99e70aee4076660d38.woff) format("woff"),url(/static/media/KaTeX_Size2-Regular.57f5c1837853986ea1db.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size3-Regular.e1951519f6f0596f7356.woff2) format("woff2"),url(/static/media/KaTeX_Size3-Regular.7947224e8a9914fa332b.woff) format("woff"),url(/static/media/KaTeX_Size3-Regular.8d6b6822586eea3d3b20.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Size4-Regular.e418bf257af1052628d8.woff2) format("woff2"),url(/static/media/KaTeX_Size4-Regular.aeffd8025cba3647f1a6.woff) format("woff"),url(/static/media/KaTeX_Size4-Regular.4ad7c7e8bb8d10a34bb7.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/static/media/KaTeX_Typewriter-Regular.c295e7f71970f03c0549.woff2) format("woff2"),url(/static/media/KaTeX_Typewriter-Regular.4c6b94fd1d07f8beff7c.woff) format("woff"),url(/static/media/KaTeX_Typewriter-Regular.c5c02d763c89380dcb4e.ttf) format("truetype")}.katex{font:normal 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.25"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.qd-display{background:#fff;color:#1e293b;display:flex;flex-direction:column;height:100vh;overflow:hidden;position:relative;width:100%}.qd-header{background:#fff;border-bottom:1px solid #f1f5f9;flex-shrink:0;padding:1rem 2rem .5rem}.qd-header-top{display:flex;justify-content:center;margin-bottom:.5rem}.qd-counter{color:#94a3b8;font-size:.8rem;font-weight:600;letter-spacing:.5px}.qd-progress-row{align-items:center;display:flex;gap:1rem}.qd-header-back-btn{align-items:center;background:#2563eb;border:none;border-radius:50%;box-shadow:0 2px 4px #2563eb4d;color:#fff;cursor:pointer;display:flex;flex-shrink:0;height:36px;justify-content:center;transition:all .2s;width:36px}.qd-header-back-btn:hover{background:#1d4ed8;transform:scale(1.05)}.qd-header-back-btn svg{display:block}.qd-progress-bar{background:#f1f5f9;border-radius:10px;flex:1 1;height:6px;overflow:hidden}.qd-progress-fill{background:#2563eb;height:100%;transition:width .4s cubic-bezier(.4,0,.2,1)}.qd-concept-wrapper,.qd-content-wrapper{-ms-overflow-style:none;box-sizing:border-box;display:flex;flex:1 1;flex-direction:column;margin:0 auto;max-width:1000px;overflow-y:auto;padding:1rem 2rem;scrollbar-width:none;width:100%}.qd-concept-wrapper::-webkit-scrollbar,.qd-content-wrapper::-webkit-scrollbar{display:none}.qd-concept-text,.qd-question-text{margin-bottom:1.5rem;text-align:center}.qd-concept-text h2,.qd-question-text h2{color:#1e293b;font-size:1.5rem;font-weight:700;line-height:1.4;margin-bottom:1rem}.qd-concept-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:16px;font-size:1.1rem;line-height:1.7;padding:2rem;text-align:left}.qd-grid-options{grid-gap:1rem;display:grid;gap:1rem;margin:0 auto;max-width:800px;width:100%}.qd-columns-1{grid-template-columns:1fr;max-width:600px}.qd-columns-2{grid-template-columns:repeat(2,1fr)}.qd-columns-3,.qd-columns-4,.qd-columns-5{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));max-width:100%}.qd-option-label{align-items:center;background:#fff;border:2px solid #e2e8f0;border-radius:12px;color:#334155;cursor:pointer;display:flex;font-size:1.1rem;padding:1rem;transition:all .2s ease}.qd-option-label:hover{background:#f8fafc;border-color:#94a3b8}.qd-option-label.selected{background:#eff6ff;border-color:#2563eb;box-shadow:0 0 0 1px #2563eb;color:#1e40af}.qd-option-label input{accent-color:#2563eb;height:20px;margin-right:16px;width:20px}.qd-nav-bar{background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0;justify-content:space-between;padding:1rem 2rem}.qd-nav-bar,.qd-nav-btn{align-items:center;display:flex}.qd-nav-btn{background:#2563eb;border:2px solid #2563eb;border-radius:50%;box-shadow:0 2px 4px #2563eb33;color:#fff;cursor:pointer;height:48px;justify-content:center;transition:all .2s;width:48px}.qd-nav-btn:hover:not(:disabled){background:#1d4ed8;border-color:#1d4ed8;transform:scale(1.05)}.qd-nav-btn.primary{background:#2563eb;border-color:#2563eb;color:#fff}.qd-nav-btn:disabled{background:#e5e7eb;border-color:#e5e7eb;box-shadow:none;cursor:not-allowed;opacity:.3}.qd-submit-section{background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0;padding:1rem 2rem;text-align:center}.qd-submit-btn{background:#2563eb;border:none;border-radius:100px;box-shadow:0 4px 12px #2563eb40;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:700;padding:1rem 4rem;transition:transform .1s,background-color .2s}.qd-submit-btn:hover:not(:disabled){background:#1d4ed8;box-shadow:0 6px 16px #2563eb59;transform:translateY(-2px)}.qd-submit-btn:disabled{background:#cbd5e1;box-shadow:none;cursor:not-allowed;transform:none}.qd-explanation-section{-ms-overflow-style:none;animation:slideUp .3s ease;background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0;max-height:35vh;overflow-y:auto;padding:1.5rem;scrollbar-width:none}.qd-explanation-section::-webkit-scrollbar{display:none}.qd-result-banner{align-items:flex-start;border-radius:16px;display:flex;gap:1.5rem;margin:0 auto;max-width:1000px;padding:1.5rem}.qd-result-banner.correct{background:#f0fdf4;border:1px solid #bbf7d0}.qd-result-banner.incorrect{background:#fef2f2;border:1px solid #fecaca}.qd-result-icon{align-items:center;background:#fff;border-radius:50%;box-shadow:0 2px 4px #0000000d;display:flex;flex-shrink:0;height:48px;justify-content:center;width:48px}.correct .qd-result-icon{color:#16a34a}.incorrect .qd-result-icon{color:#dc2626}.qd-result-content{flex:1 1}.qd-result-content h3{font-size:1.25rem;margin:0 0 .5rem}.qd-next-btn{align-items:center;background:#1f2937;border:none;border-radius:10px;color:#fff;cursor:pointer;display:flex;font-weight:600;gap:8px;padding:.8rem 1.5rem;transition:background-color .2s;white-space:nowrap}.qd-next-btn:hover{background:#0f172a}.qd-answer-input,.qd-essay-input{border:2px solid #e2e8f0;border-radius:12px;font-size:1.1rem;outline:none;padding:1rem;transition:border-color .2s;width:100%}.qd-answer-input:focus,.qd-essay-input:focus{border-color:#2563eb}@media (max-width:600px){.qd-header{padding:1rem 1rem .5rem}.qd-content-wrapper{padding:1rem}.qd-grid-options{grid-template-columns:1fr}.qd-result-banner{flex-direction:column}.qd-next-btn{justify-content:center;margin-top:1rem;width:100%}}code[class*=language-],pre[class*=language-]{word-wrap:normal;background:none;color:#000;font-family:Consolas,Monaco,Andale Mono,Ubuntu Mono,monospace;font-size:1em;-webkit-hyphens:none;hyphens:none;line-height:1.5;tab-size:4;text-align:left;text-shadow:0 1px #fff;white-space:pre;word-break:normal;word-spacing:normal}code[class*=language-] ::selection,code[class*=language-]::selection,pre[class*=language-] ::selection,pre[class*=language-]::selection{background:#b3d4fc;text-shadow:none}@media print{code[class*=language-],pre[class*=language-]{text-shadow:none}}pre[class*=language-]{margin:.5em 0;overflow:auto;padding:1em}:not(pre)>code[class*=language-],pre[class*=language-]{background:#f5f2f0}:not(pre)>code[class*=language-]{border-radius:.3em;padding:.1em;white-space:normal}.token.cdata,.token.comment,.token.doctype,.token.prolog{color:#708090}.token.punctuation{color:#999}.token.namespace{opacity:.7}.token.boolean,.token.constant,.token.deleted,.token.number,.token.property,.token.symbol,.token.tag{color:#905}.token.attr-name,.token.builtin,.token.char,.token.inserted,.token.selector,.token.string{color:#690}.language-css .token.string,.style .token.string,.token.entity,.token.operator,.token.url{background:#ffffff80;color:#9a6e3a}.token.atrule,.token.attr-value,.token.keyword{color:#07a}.token.class-name,.token.function{color:#dd4a68}.token.important,.token.regex,.token.variable{color:#e90}.token.bold,.token.important{font-weight:700}.token.italic{font-style:italic}.token.entity{cursor:help}.dsl-editor-container{background-color:#fff;border:1px solid #ced4da;border-radius:6px;font-family:Menlo,Monaco,Courier New,monospace;font-size:14px;line-height:1.5;position:relative}.dsl-line-numbers{background-color:#f6f8fa;border-right:1px solid #e1e4e8;color:#6a737d;flex-shrink:0;padding:15px 8px 15px 0;text-align:right;-webkit-user-select:none;user-select:none;width:45px}.dsl-line-number{height:21px}.dsl-editor-textarea{background-color:initial!important;border:none!important;caret-color:#24292e!important;color:#0000!important;outline:none!important;z-index:1}.dsl-editor-pre{color:#24292e!important;margin:0!important;z-index:0}.token.comment{color:#6a737d;font-style:italic}.token.keyword{color:#d73a49;font-weight:600}.token.function{color:#005cc5;font-weight:600}.token.number{color:#005cc5}.token.string{color:#22863a}.token.property{color:#032f62}.token.operator{color:#d73a49}.token.variable{color:#e36209}.token.punctuation{color:#24292e}.dsl-set-name-section{border-bottom:1px solid #e5e7eb;padding:0 24px 16px}.dsl-set-name-section label{color:#1f2937;display:block;font-size:.9rem;margin-bottom:8px}.dsl-set-name-input{border:1px solid #d1d5db;border-radius:4px;font-size:.9rem;margin-top:4px;padding:8px 12px;width:100%}.dsl-set-name-input:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a;outline:none}.dsl-editor-overlay{align-items:center;background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:1002}.dsl-editor-container{background:#fff;border-radius:12px;box-shadow:0 10px 30px #0000004d;display:flex;flex-direction:column;max-height:90vh;max-width:1200px;overflow:hidden;width:90%}.dsl-editor-header{align-items:center;background:#f8f9fa;border-bottom:1px solid #dee2e6;display:flex;justify-content:space-between;padding:20px 30px}.dsl-editor-header h3{color:#495057;font-size:1.25rem;font-weight:600;margin:0}.dsl-close-btn{background:none;border:none;border-radius:4px;color:#6c757d;cursor:pointer;font-size:24px;padding:5px;transition:background-color .2s}.dsl-close-btn:hover{background:#e9ecef;color:#495057}.dsl-editor-content{gap:20px;overflow-y:auto}.dsl-editor-content,.dsl-editor-input{display:flex;flex:1 1;flex-direction:column}.dsl-editor-input{padding:20px}.dsl-input-header{align-items:center;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin-bottom:15px}.available-variables{background:#e9ecef;border-radius:4px;color:#6c757d;font-size:12px;padding:4px 8px}.dsl-input-header h4{color:#495057;font-size:1.1rem;font-weight:600;margin:0}.dsl-editor-wrapper{display:flex;flex:1 1;flex-direction:column;gap:15px;width:100%}.dsl-code-editor{color:#495057;flex:1 1;font-family:Monaco,Consolas,Courier New,monospace;font-size:14px;line-height:1.5;tab-size:2;width:100%}.dsl-code-editor pre,.dsl-code-editor textarea{background:#0000!important;border:none!important;outline:none!important}.dsl-code-editor .token.keyword{color:#06c!important;font-weight:700!important}.dsl-code-editor .token.function{color:#2a2!important;font-weight:600!important}.dsl-code-editor .token.variable{color:#c60!important;font-weight:500!important}.dsl-code-editor .token.number{color:#c00!important;font-weight:400!important}.dsl-code-editor .token.string{color:#93c!important;font-weight:400!important}.dsl-code-editor .token.punctuation{color:#666!important}.dsl-code-editor::placeholder{color:#6c757d;font-style:italic}.dsl-syntax-guide{background:#e8f4fd;border:1px solid #b3d9ff;border-radius:6px;font-size:13px;padding:12px}.dsl-syntax-guide h5{color:#0056b3;font-size:14px;font-weight:600;margin:0 0 8px}.syntax-examples{display:flex;flex-direction:column;gap:4px}.syntax-examples div{color:#495057;font-family:Monaco,Consolas,Courier New,monospace;font-size:12px}.syntax-examples code.keyword{background:none;color:#007bff;font-weight:600;padding:0}.syntax-examples code.operation{background:none;color:#28a745;font-weight:500;padding:0}.syntax-examples code.render{background:#f8f9fa;border-radius:2px;color:#6f42c1;font-weight:500;padding:1px 4px}.dsl-code-editor:focus{border-color:#007bff;box-shadow:0 0 0 3px #007bff1a}.dsl-error{background:#f8d7da;border:1px solid #f5c6cb;border-radius:4px;color:#721c24;font-size:14px;margin-top:10px;padding:10px}.dsl-editor-testing{background:#f8f9fa;border-radius:0 0 8px 8px;border-top:1px solid #dee2e6;display:flex;flex-direction:column;flex-shrink:0;padding:20px}.dsl-editor-testing h4{color:#495057;font-size:1.1rem;font-weight:600;margin:0 0 15px}.dsl-test-input{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.dsl-test-input label{color:#495057;font-size:14px;font-weight:600}.dsl-variable-input{border:1px solid #ced4da;border-radius:4px;color:#495057;font-size:14px;padding:10px}.dsl-variable-input:focus{border-color:#007bff;box-shadow:0 0 0 3px #007bff1a;outline:none}.dsl-test-loading{align-items:center;color:#6c757d;display:flex;flex-direction:column;justify-content:center;padding:40px}.dsl-test-result{display:flex;flex-direction:column;gap:20px}.dsl-test-latex{background:#e7f3ff;border:1px solid #b3d9ff;border-radius:6px;padding:15px}.dsl-test-latex h5{color:#0056b3;font-size:.9rem;font-weight:600;letter-spacing:.5px;margin:0 0 10px;text-transform:uppercase}.dsl-test-raw{background:#f8f9fa;border:1px solid #dee2e6;border-radius:6px;padding:15px}.dsl-test-raw h5{color:#495057;font-size:.9rem;font-weight:600;letter-spacing:.5px;margin:0 0 10px;text-transform:uppercase}.dsl-test-raw code{background:#fff;border:1px solid #e9ecef;border-radius:4px;color:#e83e8c;display:block;font-family:Monaco,Consolas,Courier New,monospace;font-size:14px;padding:10px;word-break:break-all}.dsl-test-empty{color:#6c757d;padding:40px;text-align:center}.dsl-test-empty p{font-size:14px;margin:10px 0}.variable-suggestions{background:#f8f9fa;border:1px solid #dee2e6;border-radius:6px;margin-top:20px;padding:15px}.variable-suggestions p{color:#495057;font-size:14px;margin:0 0 10px}.variable-chips{display:flex;flex-wrap:wrap;gap:8px}.variable-chip{background:#007bff;border:none;border-radius:20px;color:#fff;cursor:pointer;font-size:12px;padding:6px 12px;transition:all .2s}.variable-chip:hover{background:#0056b3;transform:translateY(-1px)}.loading-spinner{border:3px solid #f3f3f3;border-top-color:#007bff;height:32px;margin-bottom:15px;width:32px}.math-display{background:#fff;border:1px solid #cce7ff;border-radius:4px;font-family:Times New Roman,serif;font-size:16px;padding:10px}.dsl-usage-example{background:#d4edda;border:1px solid #c3e6cb;border-radius:6px;padding:15px}.dsl-usage-example h5{color:#155724;font-size:.9rem;font-weight:600;letter-spacing:.5px;margin:0 0 10px;text-transform:uppercase}.dsl-usage-example p{color:#155724;font-size:14px;margin:5px 0}.dsl-usage-example code{background:#f8f9fa;border-radius:3px;color:#e83e8c;font-family:Monaco,Consolas,Courier New,monospace;font-size:13px;padding:2px 6px}.dsl-editor-templates{background:#f8f9fa;border-top:1px solid #dee2e6;padding:20px 30px}.dsl-editor-templates h4{color:#495057;font-size:1rem;font-weight:600;margin:0 0 15px}.dsl-template-buttons{display:flex;flex-wrap:wrap;gap:10px}.dsl-template-btn{background:#fff;border:1px solid #ced4da;border-radius:4px;color:#495057;cursor:pointer;font-size:14px;padding:8px 16px;transition:all .2s}.dsl-template-btn:hover{background:#007bff;border-color:#007bff;color:#fff}.dsl-editor-actions{background:#f8f9fa;border-top:1px solid #dee2e6;display:flex;gap:15px;justify-content:flex-end;padding:20px 30px}.btn{font-size:14px;gap:8px;padding:8px 20px}.btn-sm{font-size:13px;padding:6px 12px}.btn-primary{background:#007bff}.btn-primary:hover:not(:disabled){background:#0056b3}.btn-primary:disabled,.btn-secondary{background:#6c757d}.btn-secondary{color:#fff}.btn-secondary:hover{background:#545b62}@media (max-width:768px){.dsl-editor-container{max-height:95vh;width:95%}.dsl-editor-content{grid-template-columns:1fr;grid-template-rows:1fr 1fr}.dsl-editor-input{border-bottom:1px solid #dee2e6;border-right:none}.dsl-editor-actions,.dsl-editor-header,.dsl-editor-templates{padding:15px 20px}.dsl-template-buttons{flex-direction:column}.dsl-template-btn{width:100%}}.dsl-code-editor .syntax-error-line{background-color:#ff00001a!important;border-left:3px solid #dc3545!important;display:block!important;margin-left:-15px!important;padding-left:5px!important;padding-right:15px!important}.dsl-syntax-error{background:#fff3cd;border:1px solid #ffeaa7;border-radius:4px;color:#856404;font-size:14px;margin-top:10px;padding:10px}.dsl-editor-wrapper{position:relative}.error-lines-overlay{bottom:0;left:0;pointer-events:none;position:absolute;right:0;top:0;z-index:1}.error-line-highlight{background-color:#ef44441a;border-left:3px solid #ef4444;left:15px;pointer-events:none;position:absolute;right:15px}.dsl-variable-manager-overlay{align-items:center;background:#000000b3;bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:1001}.dsl-variable-manager-modal{background:#fff;border-radius:8px;box-shadow:0 4px 20px #0000004d;display:flex;flex-direction:column;height:90vh;max-width:1200px;width:90vw}.manager-header{align-items:center;border-bottom:1px solid #e5e7eb;display:flex;flex-shrink:0;justify-content:space-between;padding:20px 24px}.manager-header h3{color:#1f2937;font-size:1.25rem;font-weight:600;margin:0}.close-btn{background:none;border:none;border-radius:4px;color:#6b7280;cursor:pointer;font-size:24px;line-height:1;padding:4px}.close-btn:hover{background:#f3f4f6;color:#374151}.manager-content{grid-gap:24px;display:grid;flex:1 1;gap:24px;grid-template-columns:1fr 2fr;overflow-y:auto;padding:24px}.sets-section{background:#f9fafb;border:1px solid #e5e7eb;border-radius:8px;padding:20px}.section-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:16px}.section-header h4{color:#1f2937;font-size:1.1rem;font-weight:600;margin:0}.empty-state{color:#6b7280;padding:40px 20px}.empty-state p{margin:8px 0}.sets-list{display:flex;flex-direction:column;gap:16px}.variable-set-card{background:#fff;border:1px solid #d1d5db;border-radius:6px;padding:16px}.set-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:12px}.set-header h5{color:#1f2937;font-size:1rem;font-weight:500;margin:0}.set-actions{display:flex;gap:8px}.set-info{display:flex;flex-direction:column;gap:12px}.variables-preview{color:#374151}.variables-preview strong{display:block;font-size:.875rem;margin-bottom:4px}.code-preview{background:#f3f4f6;border:1px solid #d1d5db;border-radius:4px;color:#374151;font-family:Courier New,monospace;font-size:.8rem;margin:0;overflow-x:auto;padding:8px;white-space:pre-wrap}.assigned-questions{color:#6b7280;font-size:.875rem}.assignment-section{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:20px}.assignment-section h4{color:#1f2937;font-size:1.1rem;font-weight:600;margin:0 0 16px}.conflicts-warning{background:#fef2f2;border:1px solid #fecaca;border-radius:6px;margin-bottom:20px;padding:16px}.conflicts-warning h5{color:#dc2626;font-size:1rem;margin:0 0 12px}.conflict-item{color:#dc2626;font-size:.875rem;line-height:1.4;margin-bottom:8px}.questions-assignment{display:flex;flex-direction:column;gap:16px}.question-assignment-row{align-items:flex-start;background:#f9fafb;border:1px solid #e5e7eb;border-radius:6px;display:flex;gap:16px;justify-content:space-between;padding:16px}.question-assignment-row.has-conflicts{background:#fef2f2;border-color:#fecaca}.question-info{flex:1 1}.question-info strong{color:#1f2937;display:block;font-size:.9rem;margin-bottom:4px}.question-preview{color:#6b7280;display:block;font-size:.875rem;line-height:1.4}.question-conflicts{margin-top:8px}.conflict-warning{color:#dc2626!important;font-weight:500}.set-checkboxes{display:flex;flex-direction:column;gap:8px;min-width:200px}.set-checkbox{align-items:center;color:#374151;cursor:pointer;display:flex;font-size:.875rem;gap:8px;padding:4px 0}.set-checkbox input[type=checkbox]{cursor:pointer;margin:0}.set-checkbox:hover{color:#1f2937}.manager-footer{border-top:1px solid #e5e7eb;display:flex;flex-shrink:0;justify-content:flex-end;padding:16px 24px}.btn{border-radius:4px;padding:8px 16px;transition:all .15s ease}.btn-secondary{background:#f3f4f6;border:1px solid #d1d5db;color:#374151}.btn-secondary:hover{background:#e5e7eb}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626}.loading{align-items:center;color:#6b7280;display:flex;font-size:1rem;justify-content:center;padding:40px}@media (max-width:768px){.dsl-variable-manager-modal{height:95vh;width:95vw}.manager-content{gap:16px;grid-template-columns:1fr}.question-assignment-row{align-items:stretch;flex-direction:column}.set-checkboxes{min-width:auto}}.template-manager-modal{max-height:80vh;max-width:800px;overflow-y:auto}.template-manager-actions{margin-bottom:1rem;text-align:right}.templates-list{-webkit-overflow-scrolling:touch;max-height:400px;overflow-y:auto;transform:translateZ(0)}.template-item{background:#f9f9f9;border:1px solid #ddd;border-radius:8px;margin-bottom:1rem;padding:1rem}.template-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:.5rem}.template-header h4{color:#333;font-size:1.1rem;margin:0}.template-actions{display:flex;gap:.5rem}.template-details{display:flex;font-size:.9rem;gap:1rem;margin-bottom:.5rem}.template-type{background:#e3f2fd;color:#1976d2}.template-points,.template-type{border-radius:4px;font-weight:500;padding:.2rem .5rem}.template-points{background:#f3e5f5;color:#7b1fa2}.template-variable-set{background:#e8f5e8;border-radius:4px;color:#388e3c;font-weight:500;padding:.2rem .5rem}.template-preview{color:#666;font-size:.9rem;font-style:italic;margin-bottom:.5rem}.template-macros{color:#333;font-size:.85rem}.template-macros strong{color:#000}.empty-state{color:#666;font-style:italic;padding:2rem;text-align:center}.template-editor-modal{max-height:90vh;max-width:900px;overflow-y:auto}.template-editor-body{max-height:70vh;overflow-y:auto}.template-editor-modal-wrapper .lesson-edit-modal-overlay{background:#000000b3!important;z-index:1100!important}.option-input{align-items:center;display:flex;gap:.5rem;margin-bottom:.5rem}.option-input input{flex:1 1}.remove-option-btn{background:#dc3545;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.9rem;padding:.25rem .5rem}.remove-option-btn:hover{background:#c82333}.add-option-btn{background:#28a745;border:none;border-radius:4px;color:#fff;cursor:pointer;margin-top:.5rem;padding:.5rem 1rem}.add-option-btn:hover{background:#218838}.detected-macros{background:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;margin-top:1rem;padding:1rem}.detected-macros h4{color:#333;font-size:1rem;margin:0 0 .5rem}.detected-macros p{color:#666;font-size:.9rem;margin:0 0 .5rem}.macro-list{display:flex;flex-wrap:wrap;gap:.5rem}.macro-tag{background:#007bff;border-radius:4px;color:#fff;font-family:monospace;font-size:.85rem;padding:.25rem .5rem}.macro-input-modal{max-width:500px}.macro-inputs{margin-bottom:1.5rem}.macro-inputs .form-group label{font-weight:700;margin-bottom:.25rem}.macro-inputs .form-group label code{background:#f8f9fa;border-radius:3px;color:#d73a49;font-size:.9rem;padding:.2rem .4rem}.macro-help{background:#f8f9fa;border:1px solid #dee2e6;border-radius:6px;padding:1rem}.macro-help h4{color:#333;font-size:.95rem;margin:0 0 .5rem}.macro-help ul{margin:0;padding-left:1.2rem}.macro-help li{color:#666;font-size:.9rem;margin-bottom:.25rem}.macro-help strong{background:#e9ecef;border-radius:3px;font-family:monospace;padding:.1rem .3rem}.template-selector-modal{max-height:80vh;max-width:700px}.template-selector-list{-webkit-overflow-scrolling:touch;max-height:400px;overflow-y:auto;transform:translateZ(0)}.template-selector-item{background:#fff;border:2px solid #dee2e6;border-radius:8px;cursor:pointer;margin-bottom:1rem;padding:1rem;transition:border-color .15s ease,background-color .15s ease;will-change:border-color,background-color}.template-selector-item:hover{background:#f8f9ff;border-color:#007bff}.template-selector-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:.5rem}.template-selector-header h4{color:#333;font-size:1.1rem;margin:0}.template-selector-details{display:flex;gap:.5rem}.template-selector-preview{color:#666;font-size:.9rem;line-height:1.4;margin-bottom:.5rem}.template-selector-macros{color:#333;font-size:.85rem}.template-selector-macros strong{color:#000}.lesson-edit-modal-overlay{align-items:center;-webkit-backdrop-filter:none;backdrop-filter:none;background:#00000080;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.template-editor-modal{z-index:1100!important}.template-editor-modal .lesson-edit-modal-overlay{background:#000000b3!important;z-index:1100!important}.lesson-edit-modal-content{backface-visibility:hidden;-webkit-backface-visibility:hidden;background:#fff;border-radius:8px;box-shadow:0 4px 6px #0000001a;display:flex;flex-direction:column;max-height:90vh;max-width:90vw;overflow:hidden;will-change:transform}.lesson-edit-modal-header{align-items:center;background:#f8f9fa;border-bottom:1px solid #dee2e6;display:flex;justify-content:space-between;padding:1rem 1.5rem}.lesson-edit-modal-header h3{color:#333;font-size:1.25rem;margin:0}.lesson-edit-modal-close{align-items:center;background:none;border:none;color:#666;cursor:pointer;display:flex;font-size:1.5rem;height:2rem;justify-content:center;padding:0;width:2rem}.lesson-edit-modal-close:hover{color:#000}.lesson-edit-modal-body{-webkit-overflow-scrolling:touch;flex:1 1;overflow-y:auto;padding:1.5rem;transform:translateZ(0)}.lesson-edit-modal-footer{background:#f8f9fa;border-top:1px solid #dee2e6;display:flex;gap:.5rem;justify-content:flex-end;padding:1rem 1.5rem}.qm-question-manager{background:#fff;overflow:visible;padding:2rem;position:static;width:100%}.qm-form-section{margin-bottom:2rem}.qm-form-section h4{border-bottom:2px solid #e2e8f0;color:#374151;font-size:1.2rem;font-weight:600;margin:0 0 1.5rem;padding-bottom:.5rem}.qm-form-group{margin-bottom:1.5rem}.qm-form-group label{color:#374151;display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem}.qm-form-group input,.qm-form-group select,.qm-form-group textarea{border:1px solid #d1d5db;border-radius:6px;font-size:.875rem;padding:.75rem;transition:border-color .15s ease;width:100%;will-change:border-color}.qm-form-group input:focus,.qm-form-group select:focus,.qm-form-group textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a;outline:none}.qm-form-group small{color:#6b7280;display:block;font-size:.75rem;margin-top:.25rem}.qm-form-row{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr}.qm-form-group input[type=checkbox]{margin-right:.5rem;width:auto}.qm-questions-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1.5rem}.qm-questions-header h4{border:none;margin:0;padding:0}.qm-questions-header-actions{display:flex;gap:.5rem}.qm-empty-questions{background:#f9fafb;border:2px dashed #d1d5db;border-radius:8px;color:#9ca3af;font-style:italic;padding:2rem;text-align:center}.qm-questions-list{contain:layout style;display:flex;flex-direction:column;gap:1.5rem;overflow:visible;transform:translateZ(0)}.qm-question-item{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;contain:layout;padding:1.5rem;will-change:auto}.qm-question-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1rem}.qm-question-header span{color:#374151;font-weight:600}.qm-question-actions{display:flex;gap:.5rem}.qm-preview-question{align-items:center;background:#3b82f6;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:background-color .15s ease;will-change:background-color}.qm-preview-question:hover:not(:disabled){background:#2563eb}.qm-preview-question:disabled{background:#9ca3af;cursor:not-allowed}.qm-remove-question{background:#ef4444;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.75rem;padding:.25rem .75rem}.qm-remove-question:hover{background:#dc2626}.qm-duplicate-question{align-items:center;background:#10b981;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:all .2s ease}.qm-duplicate-question:hover{background:#059669}.qm-dsl-variables-btn{align-items:center;background:#f8f9fa;border:1px solid #dee2e6;border-radius:4px;color:#495057;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:all .2s ease}.qm-dsl-variables-btn:hover{background:#007bff;border-color:#007bff;color:#fff}.qm-dsl-variables-btn.has-variables{background:#d4edda;border-color:#c3e6cb;color:#155724}.qm-dsl-variables-btn.has-variables:hover{background:#28a745;border-color:#28a745;color:#fff}.qm-dsl-variables-indicator{background:#e7f3ff;border:1px solid #b3d9ff;border-left:4px solid #007bff;border-radius:6px;margin:10px 0;padding:12px}.qm-dsl-badge{align-items:center;background:#007bff;border-radius:4px;color:#fff;display:inline-flex;font-size:13px;font-weight:500;gap:6px;margin-bottom:8px;padding:4px 10px}.qm-dsl-variables-indicator small{color:#0056b3;display:block;font-style:italic;margin-top:5px}.qm-concept-steps-container{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin-top:.5rem;padding:1rem}.qm-concept-step-item{background:#fff;border:1px solid #e2e8f0;border-radius:6px;margin-bottom:1rem;padding:1rem}.qm-concept-step-item:last-child{margin-bottom:0}.qm-concept-step-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:.5rem}.qm-concept-step-header span{color:#374151;font-size:.875rem;font-weight:600}.qm-remove-step-btn{align-items:center;background:#ef4444;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:.875rem;height:24px;justify-content:center;line-height:1;width:24px}.qm-remove-step-btn:hover{background:#dc2626}.qm-concept-step-item textarea{border:1px solid #d1d5db;border-radius:4px;font-size:.875rem;min-height:80px;padding:.75rem;resize:vertical;width:100%}.qm-concept-step-item textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a;outline:none}.qm-add-step-btn{align-items:center;background:#10b981;border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-size:.875rem;gap:.5rem;padding:.5rem 1rem;transition:all .2s ease}.qm-add-step-btn:hover{background:#059669}.qm-btn{align-items:center;border:none;border-radius:6px;cursor:pointer;display:inline-flex;font-size:.875rem;font-weight:500;gap:.5rem;padding:.75rem 1.5rem;text-decoration:none;transition:all .2s ease}.qm-btn:disabled{cursor:not-allowed;opacity:.6}.qm-btn-primary{background:#3b82f6;color:#fff}.qm-btn-primary:hover:not(:disabled){background:#2563eb}.qm-btn-secondary{background:#f1f5f9;border:1px solid #e2e8f0;color:#475569}.qm-btn-secondary:hover{background:#e2e8f0}.qm-question-preview-overlay{align-items:center;background:#000c;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:2000}.qm-question-preview-modal{background:#fff;border-radius:16px;box-shadow:0 8px 16px #00000026;max-height:95vh;max-width:800px;overflow:hidden;width:95vw}.qm-preview-header{align-items:center;background:#f9fafb;border-bottom:1px solid #e5e7eb;display:flex;justify-content:space-between;padding:1rem 1.5rem}.qm-preview-header h3{color:#374151;font-size:1.1rem;font-weight:600;margin:0}.qm-preview-close{background:none;border:none;color:#6b7280;cursor:pointer;font-size:1.5rem;line-height:1;padding:.25rem}.qm-preview-close:hover{color:#374151}.qm-preview-content{max-height:calc(95vh - 120px);overflow-y:auto;padding:0}.qm-preview-footer{background:#f9fafb;border-top:1px solid #e5e7eb;padding:1rem 1.5rem;text-align:center}.qm-field-hint,.qm-preview-note{color:#6b7280;font-style:italic}.qm-field-hint{font-size:.75rem;font-weight:400}.qm-question-manager .qm-question-navigation-centered{background:#f8fafc!important;border:1px solid #e2e8f0!important;border-radius:8px!important;box-sizing:border-box!important;margin:0 auto 2rem!important;max-width:1000px!important;overflow:visible!important;position:static!important;transform:none!important;width:100%!important;z-index:auto!important}.qm-question-nav-header{padding:1rem 1rem 0;text-align:center}.qm-question-navigation-centered h5{color:#374151;font-size:1rem;font-weight:600;margin:0}.qm-question-nav-subtitle{color:#6b7280;font-size:.75rem;font-style:italic;margin:.25rem 0 0}.qm-reorder-actions{display:flex;gap:.5rem;justify-content:center;margin-top:.75rem}.qm-btn-sm{font-size:.75rem;padding:.5rem 1rem}.qm-btn-success{background:#10b981;color:#fff}.qm-btn-success:hover{background:#059669}.qm-question-nav-list.pending-reorder{background:#fffbeb;border:2px dashed #f59e0b}.qm-question-nav-card.pending{background:#fef3c7;border-color:#f59e0b;transform:scale(1.02);transition:all .2s ease}.qm-number-transition{align-items:center;display:flex;font-size:.75rem;gap:.25rem}.qm-original-number{color:#ef4444;text-decoration:line-through}.qm-arrow{color:#6b7280;font-weight:700}.qm-new-number{color:#10b981;font-weight:700}.qm-question-nav-list{align-items:flex-start;contain:layout;display:flex;flex-wrap:wrap;gap:.75rem;padding:1.5rem 1rem 1rem;position:static;transform:translateZ(0)}.qm-question-nav-card{background:#fff;border:1px solid #d1d5db;border-radius:6px;box-shadow:0 1px 3px #0000001a;contain:layout;cursor:pointer;flex-shrink:0;max-width:200px;min-width:120px;padding:.75rem;position:static;transition:border-color .15s ease;width:140px;will-change:border-color}.qm-question-nav-card:hover{border-color:#3b82f6}.qm-question-nav-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(2deg)}.qm-question-nav-list.dragging-over{background:#f0f9ff;border:2px dashed #3b82f6;border-radius:8px}.qm-question-nav-header-drag{gap:.5rem}.qm-lm-drag-handle{border-radius:4px;color:#9ca3af;cursor:grab;font-size:1rem;padding:.25rem;transition:all .2s ease;-webkit-user-select:none;user-select:none}.qm-lm-drag-handle:hover{background:#f1f5f9;color:#3b82f6}.qm-lm-drag-handle:active{cursor:grabbing}.qm-question-nav-number{color:#3b82f6;font-size:.875rem;font-weight:600;margin-bottom:.25rem;text-align:center}.qm-question-nav-preview{-webkit-line-clamp:2;-webkit-box-orient:vertical;color:#6b7280;display:-webkit-box;font-size:.6rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis}.qm-question-nav-actions{align-items:center;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;margin-top:.75rem}.qm-group-actions,.qm-save-actions{align-items:center;display:flex;gap:.5rem}.qm-question-group{contain:layout;margin-bottom:.5rem;position:static}.qm-question-group.expanded{flex-shrink:0;max-width:100%;width:-webkit-fit-content;width:fit-content}.qm-question-group.dragging{box-shadow:0 8px 25px #00000026;transform:rotate(3deg)}.qm-question-group.dragging .qm-question-group-header{background:#0284c7;color:#fff}.qm-question-group.dragging .qm-question-group-header .qm-group-label{color:#fff}.qm-question-group.dragging .qm-group-drag-handle{background:#fff3;color:#fff}.qm-question-group-header{align-items:center;background:#e0f2fe;border:1px solid #0284c7;border-radius:6px;cursor:pointer;display:flex;gap:.5rem;margin-bottom:.25rem;padding:.5rem .75rem;transition:background-color .2s ease}.qm-question-group-header:hover{background:#bae6fd}.qm-question-group-header .qm-group-expand-icon{font-size:.75rem;margin-right:.5rem;transition:transform .2s ease}.qm-group-drag-handle{background:#0f172a1a;border-radius:3px;color:#0c4a6e;cursor:grab;font-size:.75rem;padding:.25rem;transition:background-color .2s ease}.qm-group-drag-handle:hover{background:#0f172a33}.qm-group-drag-handle:active{cursor:grabbing}.qm-question-group-header .qm-group-label{color:#0c4a6e;flex:1 1;font-size:.875rem;font-weight:600}.qm-group-actions-inline{display:flex;gap:.25rem;margin-left:auto}.qm-btn-icon{background:none;border:none;border-radius:4px;cursor:pointer;font-size:.75rem;padding:.25rem;transition:background-color .2s ease}.qm-btn-icon:hover{background:#0000001a}.qm-question-group-items{background:#0284c70d;border:1px solid #0284c733;border-radius:4px;box-sizing:border-box;display:flex;flex-wrap:nowrap;gap:.75rem;margin-top:.5rem;max-width:100%;padding:.75rem;width:-webkit-fit-content;width:fit-content}.qm-question-group-items .qm-question-nav-card{flex-shrink:0;max-width:200px;min-width:140px;width:140px}.qm-question-nav-card.grouped{border-left:3px solid #0284c7;margin-bottom:0;min-height:60px}.qm-question-nav-card.selected{background:#dbeafe;border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f64d}.qm-question-nav-card.selected.grouped{border-left-color:#1d4ed8}.qm-question-nav-card.drag-preview-target{position:static}.qm-question-nav-card.drag-preview-target:before{background:#3b82f61a;border:2px dashed #3b82f6;border-radius:8px;bottom:-2px;content:"";left:-2px;pointer-events:none;position:absolute;right:-2px;top:-2px}.qm-question-group.drag-preview-target{position:static}.qm-question-group.drag-preview-target:before{background:#3b82f61a;border:2px dashed #3b82f6;border-radius:8px;bottom:-2px;content:"";left:-2px;pointer-events:none;position:absolute;right:-2px;top:-2px}.qm-question-nav-header-drag{align-items:center;display:flex;justify-content:center;margin-bottom:.5rem}.qm-question-card-actions{bottom:4px;display:flex;gap:2px;opacity:0;position:absolute;right:4px;transition:opacity .2s ease}.qm-question-nav-card:hover .qm-question-card-actions{opacity:1}.qm-btn-nav-icon{align-items:center;background:#f8f9fa;border:1px solid #dee2e6;border-radius:3px;color:#495057;cursor:pointer;display:flex;font-size:10px;height:18px;justify-content:center;line-height:1;min-width:18px;padding:2px 4px;transition:all .2s ease}.qm-btn-nav-icon:hover{background:#007bff;border-color:#007bff;color:#fff}.qm-btn-nav-icon-danger{background:#f8d7da;border-color:#f5c6cb;color:#721c24}.qm-btn-nav-icon-danger:hover{background:#dc3545;border-color:#dc3545;color:#fff}.qm-correct-answers-selection{background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;margin-top:1rem;padding:1rem}.qm-correct-answers-selection>label{color:#374151!important;display:block!important;font-weight:600!important;margin-bottom:.75rem!important}.qm-checkbox-options{display:flex;flex-direction:column;gap:.5rem}.qm-checkbox-option{align-items:center;background:#fff;border:1px solid #d1d5db;border-radius:4px;cursor:pointer;display:flex!important;font-weight:400!important;gap:.5rem;margin-bottom:0!important;padding:.5rem;transition:all .2s ease}.qm-checkbox-option:hover{background:#f3f4f6;border-color:#9ca3af}.qm-checkbox-option input[type=checkbox]{cursor:pointer;flex-shrink:0;margin:0!important;width:auto!important}.qm-checkbox-option span{color:#374151;flex:1 1;font-size:.875rem}.qm-layout-controls{align-items:center;background-color:#f8fafc;border:1px solid #e2e8f0;border-radius:4px;display:flex;gap:1rem;margin:1rem 0;padding:.75rem}.qm-layout-controls label{color:#374151;font-weight:500;margin:0}.qm-column-count-input{font-size:.875rem;padding:.5rem!important;text-align:center;width:80px!important}.qm-layout-controls small{color:#6b7280;font-size:.75rem;margin:0}.qm-correct-answer-and-layout{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.qm-correct-answer-section{align-items:center;background-color:#f0fdf4;border:1px solid #bbf7d0;border-radius:4px;display:flex;gap:1rem;padding:.75rem}.qm-correct-answer-section label{color:#166534;font-weight:500;margin:0}.qm-correct-answer-section input{border-color:#bbf7d0!important;font-size:.875rem;padding:.5rem!important;text-align:center;width:80px!important}.qm-option-layout-flags{background-color:#fffbeb;border:1px solid #fbbf24;border-radius:4px;padding:.75rem}.qm-option-layout-flags>label{color:#92400e;font-weight:500;margin:0 0 .5rem}.qm-option-config{align-items:center;background-color:#fff;border:1px solid #e2e8f0;border-radius:4px;display:flex;gap:1rem;padding:.5rem}.qm-option-config:hover{background-color:#f8fafc}.qm-option-config .qm-checkbox-option{background:#0000;border:none;flex-shrink:0;margin:0;min-width:auto;padding:0}.qm-option-config .qm-checkbox-option:hover{background:#0000}.qm-correct-indicator{color:#10b981;font-weight:700;min-width:20px}.qm-long-indicator{color:#f59e0b;font-size:.875rem;font-weight:700;min-width:30px}.qm-option-text{color:#374151;flex:1 1;font-size:.875rem}@media (max-width:768px){.qm-question-manager{padding:1rem}.qm-form-row{grid-template-columns:1fr}.qm-questions-header{align-items:stretch;flex-direction:column;gap:1rem}.qm-questions-header-actions{justify-content:center}.qm-question-nav-list{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}.qm-question-nav-list .qm-question-nav-card{max-width:150px;min-width:100px;padding:.5rem}.qm-question-nav-number{font-size:.75rem}.qm-question-nav-number .qm-original-number{font-size:.65rem}.qm-question-nav-number .qm-arrow{font-size:.5rem}.qm-question-nav-preview{-webkit-line-clamp:1;font-size:.55rem}.qm-question-actions{flex-wrap:wrap;gap:.25rem}.qm-question-actions button{flex:1 1;min-width:0}}.mte-meeting-template-editor{background:#f8fafc;background:var(--surface-muted,#f8fafc);display:flex;flex-direction:column;min-height:100%;position:relative}.mte-editor-header{align-items:center;background:#fff;background:var(--surface,#fff);border-bottom:1px solid #e2e8f0;border-bottom:1px solid var(--surface-border,#e2e8f0);box-shadow:0 2px 4px #0000000d;display:flex;justify-content:space-between;padding:1rem 1.5rem;position:-webkit-sticky;position:sticky;top:0;z-index:100}.mte-editor-breadcrumb{align-items:center;display:flex;font-size:.95rem;gap:.5rem}.mte-editor-breadcrumb button{background:none;border:none;border-radius:4px;color:#64748b;color:var(--text-secondary,#64748b);cursor:pointer;font-weight:500;padding:4px 8px;transition:background .2s}.mte-editor-breadcrumb button:hover{background:#f1f5f9;background:var(--surface-hover,#f1f5f9);color:#2563eb;color:var(--primary-blue,#2563eb)}.mte-editor-actions{display:flex;gap:.75rem}.mte-editor-title-section{background:#fff;background:var(--surface,#fff);border-bottom:1px solid #e2e8f0;border-bottom:1px solid var(--surface-border,#e2e8f0);padding:1.5rem 2rem}.mte-editor-title-section h1{color:#1e293b;color:var(--text-primary,#1e293b);font-size:1.75rem;margin:0 0 .5rem}.mte-template-meta{display:flex;gap:1rem;margin-top:1rem}.mte-template-meta span{align-items:center;background:#f1f5f9;background:var(--surface-muted,#f1f5f9);border-radius:100px;color:#64748b;color:var(--text-secondary,#64748b);display:flex;font-size:.85rem;gap:6px;padding:4px 12px}.mte-editor-tabs{background:#fff;background:var(--surface,#fff);border-bottom:1px solid #e2e8f0;border-bottom:1px solid var(--surface-border,#e2e8f0);display:flex;gap:2rem;padding:0 2rem;position:-webkit-sticky;position:sticky;top:73px;z-index:90}.mte-tab{background:none;border:none;border-bottom:2px solid #0000;color:#64748b;color:var(--text-secondary,#64748b);cursor:pointer;font-weight:500;padding:1rem 0;transition:all .2s}.mte-tab.active{border-bottom-color:#3b82f6;border-bottom-color:var(--primary-blue,#3b82f6);color:#3b82f6;color:var(--primary-blue,#3b82f6)}.mte-editor-content{margin:0 auto;max-width:1200px;padding:2rem;width:100%}.mte-tab-content{background:#fff;background:var(--surface,#fff);border:1px solid #e2e8f0;border:1px solid var(--surface-border,#e2e8f0);border-radius:8px;box-shadow:0 1px 3px #0000000d;padding:2rem}.mte-form-group{margin-bottom:1.5rem}.mte-form-group label{color:#374151;color:var(--text-primary,#374151);display:block;font-weight:500;margin-bottom:.5rem}.mte-form-group input,.mte-form-group textarea{border:1px solid #d1d5db;border:1px solid var(--surface-border,#d1d5db);border-radius:6px;font-size:.95rem;padding:.75rem;width:100%}.mte-form-row{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr}.mte-slides-section h3{margin-bottom:1rem;margin-top:0}.mte-upload-area{background:#f8fafc;background:var(--surface-hover,#f8fafc);border:2px dashed #cbd5e1;border:2px dashed var(--surface-border-hover,#cbd5e1);border-radius:12px;margin-bottom:2rem;padding:2rem;text-align:center;transition:border-color .2s}.mte-upload-area:hover{background:#eff6ff;border-color:#3b82f6;border-color:var(--primary-blue,#3b82f6)}.mte-slides-movable-container{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fill,200px);justify-content:start}.mte-slides-movable-container .movable-item{max-width:200px;width:100%}.mte-slide-thumbnail{background:#fff;border:1px solid #e2e8f0;border:1px solid var(--surface-border,#e2e8f0);border-radius:8px;display:flex;flex-direction:column;height:220px;overflow:hidden;transition:transform .2s,box-shadow .2s}.mte-slide-thumbnail:hover{box-shadow:0 4px 6px -1px #0000001a;transform:translateY(-2px)}.mte-slide-preview{background:#f1f5f9;border-bottom:1px solid #e2e8f0;border-bottom:1px solid var(--surface-border,#e2e8f0);flex-shrink:0;height:112px;position:relative}.mte-slide-image{height:100%;object-fit:cover;width:100%}.mte-slide-info{background:#fafafa;color:#64748b;color:var(--text-secondary,#64748b);display:flex;flex-grow:1;font-size:.75rem;justify-content:space-between;padding:.5rem}.mte-slide-name{max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mte-slide-actions{background:#fafafa;border-top:1px solid #e2e8f0;border-top:1px solid var(--surface-border,#e2e8f0);padding:.5rem}.mte-slide-actions button{font-size:.75rem;padding:4px;width:100%}.mte-questions-tab{background:#0000;border:none;box-shadow:none;padding:0}.btn{border:1px solid #0000;justify-content:center;padding:.5rem 1rem;transition:all .2s}.btn-primary{background:var(--primary-blue,#3b82f6)}.btn-primary:hover{background:#2563eb}.btn-primary:disabled{cursor:not-allowed;opacity:.7}.btn-secondary{background:#fff;border-color:#d1d5db;border-color:var(--surface-border,#d1d5db);color:#64748b;color:var(--text-secondary,#64748b)}.btn-secondary:hover{border-color:#94a3b8;border-color:var(--text-secondary,#94a3b8);color:#1e293b;color:var(--text-primary,#1e293b)}.btn-danger{background:#fee2e2;color:#ef4444}.btn-danger:hover{background:#fecaca}.btn-sm{font-size:.85rem;padding:.25rem .75rem}.btn-outline{background:#fff;border:1px solid #d1d5db;border:1px solid var(--surface-border,#d1d5db)}.mte-error,.mte-loading{align-items:center;color:#64748b;color:var(--text-secondary,#64748b);display:flex;flex-direction:column;height:100%;justify-content:center;padding:4rem}.lesson-form-content{background:#fff;overflow:visible;position:static}.lesson-form{contain:none!important;display:block!important;flex-shrink:0!important;height:auto!important;max-height:none!important;min-height:-webkit-fit-content!important;min-height:fit-content!important;overflow:visible!important;padding:2rem!important;position:static!important}.form-section{margin-bottom:-4rem}.form-section h4{border-bottom:2px solid #e2e8f0;color:#374151;font-size:1.2rem;font-weight:600;margin:0 0 1.5rem;padding-bottom:.5rem}.form-group{margin-bottom:1.5rem}.form-group label{color:#374151;display:block;font-size:.875rem;font-weight:500;margin-bottom:.5rem}.form-group input,.form-group select,.form-group textarea{border:1px solid #d1d5db;border-radius:6px;font-size:.875rem;padding:.75rem;transition:border-color .15s ease;width:100%;will-change:border-color}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a;outline:none}.form-group small{font-size:.75rem;margin-top:.25rem}.form-row{grid-gap:1rem;display:grid;gap:1rem;grid-template-columns:1fr 1fr}.form-group input[type=checkbox]{margin-right:.5rem;width:auto}.questions-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1.5rem}.questions-header h4{border:none;margin:0;padding:0}.questions-header-actions{display:flex;gap:.5rem}.empty-questions{background:#f9fafb;border:2px dashed #d1d5db;border-radius:8px;color:#9ca3af;font-style:italic;padding:2rem;text-align:center}.questions-list{contain:layout style;display:flex;flex-direction:column;gap:1.5rem;overflow:visible;transform:translateZ(0)}.question-item{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;contain:layout;padding:1.5rem;will-change:auto}.question-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:1rem}.question-header span{color:#374151;font-weight:600}.question-actions{display:flex;gap:.5rem}.preview-question{align-items:center;background:#3b82f6;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:background-color .15s ease;will-change:background-color}.preview-question:hover:not(:disabled){background:#2563eb}.preview-question:disabled{background:#9ca3af;cursor:not-allowed}.remove-question{background:#ef4444;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:.75rem;padding:.25rem .75rem}.remove-question:hover{background:#dc2626}.duplicate-question{align-items:center;background:#10b981;border:none;border-radius:4px;color:#fff;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:all .2s ease}.duplicate-question:hover{background:#059669}.dsl-variables-btn{align-items:center;background:#f8f9fa;border:1px solid #dee2e6;border-radius:4px;color:#495057;cursor:pointer;display:flex;font-size:.75rem;gap:.25rem;padding:.25rem .75rem;transition:all .2s ease}.dsl-variables-btn:hover{background:#007bff;border-color:#007bff;color:#fff}.dsl-variables-btn.has-variables{background:#d4edda;border-color:#c3e6cb;color:#155724}.dsl-variables-btn.has-variables:hover{background:#28a745;border-color:#28a745;color:#fff}.dsl-variables-indicator{background:#e7f3ff;border:1px solid #b3d9ff;border-left:4px solid #007bff;border-radius:6px;margin:10px 0;padding:12px}.dsl-badge{align-items:center;background:#007bff;border-radius:4px;color:#fff;display:inline-flex;font-size:13px;font-weight:500;gap:6px;margin-bottom:8px;padding:4px 10px}.dsl-variables-indicator small{color:#0056b3;display:block;font-style:italic;margin-top:5px}.concept-steps-container{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin-top:.5rem;padding:1rem}.concept-step-item{background:#fff;border:1px solid #e2e8f0;border-radius:6px;margin-bottom:1rem;padding:1rem}.concept-step-item:last-child{margin-bottom:0}.concept-step-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:.5rem}.concept-step-header span{color:#374151;font-size:.875rem;font-weight:600}.remove-step-btn{align-items:center;background:#ef4444;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;font-size:.875rem;height:24px;justify-content:center;line-height:1;width:24px}.remove-step-btn:hover{background:#dc2626}.concept-step-item textarea{border:1px solid #d1d5db;border-radius:4px;font-size:.875rem;min-height:80px;padding:.75rem;resize:vertical;width:100%}.concept-step-item textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a;outline:none}.add-step-btn{align-items:center;background:#10b981;border:none;border-radius:6px;color:#fff;cursor:pointer;display:flex;font-size:.875rem;gap:.5rem;padding:.5rem 1rem;transition:all .2s ease}.add-step-btn:hover{background:#059669}.form-group small{color:#6b7280;display:block;font-size:.8rem;margin-bottom:.5rem}.form-actions{border-top:1px solid #e2e8f0;display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem;padding-top:1.5rem}.question-preview-overlay{align-items:center;background:#000c;bottom:0;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:2000}.question-preview-modal{background:#fff;border-radius:16px;box-shadow:0 8px 16px #00000026;max-height:95vh;max-width:800px;overflow:hidden;width:95vw}.preview-header{background:#f9fafb;border-bottom:1px solid #e5e7eb;padding:1rem 1.5rem}.preview-header h3{color:#374151;font-size:1.1rem;font-weight:600;margin:0}.preview-close{background:none;border:none;color:#6b7280;cursor:pointer;font-size:1.5rem;line-height:1;padding:.25rem}.preview-close:hover{color:#374151}.preview-content{max-height:calc(95vh - 120px);overflow-y:auto;padding:0}.preview-footer{background:#f9fafb;border-top:1px solid #e5e7eb;padding:1rem 1.5rem;text-align:center}.field-hint,.preview-note{color:#6b7280;font-style:italic}.field-hint{font-size:.75rem;font-weight:400}.question-navigation-centered{contain:layout;margin:2rem auto;max-width:1000px;overflow:visible;transform:translateZ(0)}.question-navigation-centered,.question-navigation-external{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;position:relative;z-index:1}.question-navigation-external{margin:2rem 0}.question-navigation{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin-bottom:2rem}.question-nav-header{padding:1rem 1rem 0;text-align:center}.question-navigation h5,.question-navigation-centered h5,.question-navigation-external h5{color:#374151;font-size:1rem;font-weight:600;margin:0}.question-nav-subtitle{color:#6b7280;font-size:.75rem;font-style:italic;margin:.25rem 0 0}.reorder-actions{display:flex;gap:.5rem;justify-content:center;margin-top:.75rem}.btn-sm{font-size:.75rem;padding:.5rem 1rem}.btn-success{background:#10b981;color:#fff}.btn-success:hover{background:#059669}.question-nav-list.pending-reorder{background:#fffbeb;border:2px dashed #f59e0b}.question-nav-card.pending{background:#fef3c7;border-color:#f59e0b;transform:scale(1.02);transition:all .2s ease}.number-transition{align-items:center;display:flex;font-size:.75rem;gap:.25rem}.original-number{color:#ef4444;text-decoration:line-through}.arrow{color:#6b7280;font-weight:700}.new-number{color:#10b981;font-weight:700}.question-nav-list{align-items:flex-start;contain:layout;display:flex;flex-wrap:wrap;gap:.75rem;padding:1.5rem 1rem 1rem;position:relative;transform:translateZ(0)}.question-nav-card{background:#fff;border:1px solid #d1d5db;border-radius:6px;box-shadow:0 1px 3px #0000001a;contain:layout;cursor:pointer;flex-shrink:0;max-width:200px;min-width:120px;padding:.75rem;position:relative;transition:border-color .15s ease;width:140px;will-change:border-color}.question-nav-card:hover{border-color:#3b82f6}.question-nav-card.dragging{background:#eff6ff;border-color:#3b82f6;box-shadow:0 8px 24px #00000026;opacity:.8;transform:rotate(2deg)}.question-nav-list.dragging-over{background:#f0f9ff;border:2px dashed #3b82f6;border-radius:8px}.question-nav-header-drag{gap:.5rem}.lm-drag-handle{border-radius:4px;color:#9ca3af;cursor:grab;font-size:1rem;padding:.25rem;transition:all .2s ease;-webkit-user-select:none;user-select:none}.lm-drag-handle:hover{background:#f1f5f9;color:#3b82f6}.lm-drag-handle:active{cursor:grabbing}.question-nav-number{color:#3b82f6;font-size:.875rem;font-weight:600;margin-bottom:.25rem;text-align:center}.question-nav-preview{-webkit-line-clamp:2;-webkit-box-orient:vertical;color:#6b7280;display:-webkit-box;font-size:.6rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis}@media (max-width:768px){.lesson-form{padding:1rem}.form-row{grid-template-columns:1fr}.questions-header{align-items:stretch;flex-direction:column;gap:1rem}.questions-header-actions{justify-content:center}.question-nav-list{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}.question-nav-list .lm-unit-card{max-width:150px;min-width:100px;padding:.5rem}.question-nav-number{font-size:.75rem}.question-nav-number .original-number{font-size:.65rem}.question-nav-number .arrow{font-size:.5rem}.question-nav-preview{-webkit-line-clamp:1;font-size:.55rem}.question-actions{flex-wrap:wrap;gap:.25rem}.question-actions button{flex:1 1;min-width:0}}.question-nav-actions{align-items:center;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;margin-top:.75rem}.group-actions,.save-actions{align-items:center;display:flex;gap:.5rem}.question-group{contain:layout;margin-bottom:.5rem;position:relative}.question-group.expanded{flex-shrink:0;max-width:100%;width:-webkit-fit-content;width:fit-content}.question-group.dragging{box-shadow:0 8px 25px #00000026;transform:rotate(3deg);z-index:1000}.question-group.dragging .question-group-header{background:#0284c7;color:#fff}.question-group.dragging .question-group-header .group-label{color:#fff}.question-group.dragging .group-drag-handle{background:#fff3;color:#fff}.question-group-header{align-items:center;background:#e0f2fe;border:1px solid #0284c7;border-radius:6px;cursor:pointer;display:flex;gap:.5rem;margin-bottom:.25rem;padding:.5rem .75rem;transition:background-color .2s ease}.question-group-header:hover{background:#bae6fd}.question-group-header .group-expand-icon{font-size:.75rem;margin-right:.5rem;transition:transform .2s ease}.group-drag-handle{background:#0f172a1a;border-radius:3px;color:#0c4a6e;cursor:grab;font-size:.75rem;padding:.25rem;transition:background-color .2s ease}.group-drag-handle:hover{background:#0f172a33}.group-drag-handle:active{cursor:grabbing}.question-group-header .group-label{color:#0c4a6e;flex:1 1;font-size:.875rem;font-weight:600}.group-actions-inline{display:flex;gap:.25rem;margin-left:auto}.btn-icon{background:none;border:none;border-radius:4px;cursor:pointer;font-size:.75rem;padding:.25rem;transition:background-color .2s ease}.btn-icon:hover{background:#0000001a}.question-group-items{background:#0284c70d;border:1px solid #0284c733;border-radius:4px;box-sizing:border-box;display:flex;flex-wrap:nowrap;gap:.75rem;margin-top:.5rem;max-width:100%;padding:.75rem;width:-webkit-fit-content;width:fit-content}.question-group-items .question-nav-card{flex-shrink:0;max-width:200px;min-width:140px;width:140px}.question-nav-card.grouped{border-left:3px solid #0284c7;margin-bottom:0;min-height:60px}.question-nav-card.selected{background:#dbeafe;border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f64d}.question-nav-card.selected.grouped{border-left-color:#1d4ed8}.question-nav-card.drag-preview-target{position:relative}.question-nav-card.drag-preview-target:before{background:#3b82f61a;border:2px dashed #3b82f6;border-radius:8px;bottom:-2px;content:"";left:-2px;pointer-events:none;position:absolute;right:-2px;top:-2px;z-index:1}.question-group.drag-preview-target{position:relative}.question-group.drag-preview-target:before{background:#3b82f61a;border:2px dashed #3b82f6;border-radius:8px;bottom:-2px;content:"";left:-2px;pointer-events:none;position:absolute;right:-2px;top:-2px;z-index:1}.question-nav-header-drag{align-items:center;display:flex;justify-content:center;margin-bottom:.5rem}.question-card-actions{bottom:4px;display:flex;gap:2px;opacity:0;position:absolute;right:4px;transition:opacity .2s ease}.question-nav-card:hover .question-card-actions{opacity:1}.btn-nav-icon{align-items:center;background:#f8f9fa;border:1px solid #dee2e6;border-radius:3px;color:#495057;cursor:pointer;display:flex;font-size:10px;height:18px;justify-content:center;line-height:1;min-width:18px;padding:2px 4px;transition:all .2s ease}.btn-nav-icon:hover{background:#007bff;border-color:#007bff;color:#fff}.btn-nav-icon-danger{background:#f8d7da;border-color:#f5c6cb;color:#721c24}.btn-nav-icon-danger:hover{background:#dc3545;border-color:#dc3545;color:#fff}.correct-answers-selection{background:#f8fafc;border:1px solid #e2e8f0;border-radius:6px;margin-top:1rem;padding:1rem}.correct-answers-selection>label{color:#374151!important;display:block!important;font-weight:600!important;margin-bottom:.75rem!important}.checkbox-options{display:flex;flex-direction:column;gap:.5rem}.checkbox-option{align-items:center;background:#fff;border:1px solid #d1d5db;border-radius:4px;cursor:pointer;display:flex!important;font-weight:400!important;gap:.5rem;margin-bottom:0!important;padding:.5rem;transition:all .2s ease}.checkbox-option:hover{background:#f3f4f6;border-color:#9ca3af}.checkbox-option input[type=checkbox]{cursor:pointer;flex-shrink:0;margin:0!important;width:auto!important}.checkbox-option span{color:#374151;flex:1 1;font-size:.875rem}.layout-controls{align-items:center;background-color:#f8fafc;border:1px solid #e2e8f0;border-radius:4px;display:flex;gap:1rem;margin:1rem 0;padding:.75rem}.layout-controls label{color:#374151;font-weight:500;margin:0}.column-count-input{font-size:.875rem;padding:.5rem!important;text-align:center;width:80px!important}.layout-controls small{color:#6b7280;font-size:.75rem;margin:0}.correct-answer-and-layout{display:flex;flex-direction:column;gap:1rem;margin-top:1rem}.correct-answer-section{align-items:center;background-color:#f0fdf4;border:1px solid #bbf7d0;border-radius:4px;display:flex;gap:1rem;padding:.75rem}.correct-answer-section label{color:#166534;font-weight:500;margin:0}.correct-answer-section input{border-color:#bbf7d0!important;font-size:.875rem;padding:.5rem!important;text-align:center;width:80px!important}.option-layout-flags{background-color:#fffbeb;border:1px solid #fbbf24;border-radius:4px;padding:.75rem}.option-layout-flags>label{color:#92400e;font-weight:500;margin:0 0 .5rem}.option-config{align-items:center;background-color:#fff;border:1px solid #e2e8f0;border-radius:4px;display:flex;gap:1rem;padding:.5rem}.option-config:hover{background-color:#f8fafc}.option-config .checkbox-option{background:#0000;border:none;flex-shrink:0;margin:0;min-width:auto;padding:0}.option-config .checkbox-option:hover{background:#0000}.correct-indicator{color:#10b981;font-weight:700;min-width:20px}.long-indicator{color:#f59e0b;font-size:.875rem;font-weight:700;min-width:30px}.option-text{color:#374151;flex:1 1;font-size:.875rem}.lesson-edit-page{background:#f8fafc;min-height:100vh;padding:2rem 2rem 4rem}.lesson-edit-error,.lesson-edit-loading{align-items:center;display:flex;flex-direction:column;justify-content:center;min-height:60vh;text-align:center}.loading-spinner{animation:spin 1s linear infinite;border:3px solid #e2e8f0;border-radius:50%;border-top-color:#3b82f6;height:3rem;margin-bottom:1rem;width:3rem}.lesson-edit-loading p{color:#64748b;font-size:1.1rem;margin:0}.lesson-edit-error h2{color:#dc2626;margin:0 0 1rem}.lesson-edit-error p{color:#64748b;margin:0 0 2rem}.lesson-edit-actions{background:#fff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 1px 3px #0000001a;display:flex;gap:1rem;justify-content:flex-end;margin-bottom:2rem;padding:1rem 2rem;position:-webkit-sticky;position:sticky;top:0;z-index:100}.lesson-edit-actions .btn{border:1px solid #0000;border-radius:6px;cursor:pointer;font-size:.875rem;font-weight:500;padding:.75rem 1.5rem;transition:all .2s}.lesson-edit-actions .btn-secondary{background:#f8fafc;border-color:#e2e8f0;color:#64748b}.lesson-edit-actions .btn-secondary:hover{background:#f1f5f9;border-color:#cbd5e1}.lesson-edit-actions .btn-primary{background:#3b82f6;border-color:#3b82f6;color:#fff}.lesson-edit-actions .btn-primary:hover:not(:disabled){background:#2563eb;border-color:#2563eb}.lesson-edit-actions .btn-primary:disabled{background:#94a3b8;border-color:#94a3b8;cursor:not-allowed}.lesson-edit-actions .btn-outline{background:#0000;border-color:#6366f1;color:#6366f1}.lesson-edit-actions .btn-outline:hover{background:#6366f1;border-color:#6366f1;color:#fff}.lesson-edit-breadcrumb{align-items:center;color:#64748b;display:flex;font-size:.875rem;gap:.5rem;margin-bottom:2rem}.breadcrumb-item{color:#64748b}.lesson-edit-header{margin-bottom:2rem}.lesson-edit-header h1{color:#1e293b;font-size:2rem;font-weight:700;margin:0 0 .5rem}.lesson-edit-context{color:#64748b;font-size:1rem;margin:0}.lesson-edit-context strong{color:#374151}.lesson-edit-content{height:auto;padding-bottom:2rem;position:static}.lesson-edit-content,.lesson-edit-questions{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:visible}.lesson-edit-questions{margin-top:2rem}.btn-secondary:hover{background:#e2e8f0}@media (max-width:768px){.lesson-edit-page{padding:1rem}.lesson-edit-breadcrumb{flex-wrap:wrap;gap:.25rem}.lesson-edit-header h1{font-size:1.5rem}.lesson-edit-context{font-size:.875rem}}.meeting-edit-page{background:#f8fafc;min-height:100vh;padding:2rem}.meeting-edit-error,.meeting-edit-loading{align-items:center;display:flex;flex-direction:column;justify-content:center;min-height:60vh;text-align:center}.meeting-edit-loading .loading-spinner{animation:spin 1s linear infinite;border:3px solid #e2e8f0;border-radius:50%;border-top-color:#3b82f6;height:3rem;margin-bottom:1rem;width:3rem}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.meeting-edit-loading p{color:#64748b;font-size:1.1rem;margin:0}.meeting-edit-error h2{color:#dc2626;margin:0 0 1rem}.meeting-edit-error p{color:#64748b;margin:0 0 2rem}.meeting-edit-breadcrumb{align-items:center;color:#64748b;display:flex;font-size:.875rem;gap:.5rem;margin-bottom:2rem}.breadcrumb-link{background:none;border:none;color:#3b82f6;cursor:pointer;font-size:inherit;padding:0;text-decoration:none;transition:color .2s ease}.breadcrumb-link:hover{color:#2563eb;text-decoration:underline}.breadcrumb-separator{color:#9ca3af;font-weight:400}.breadcrumb-current{color:#1e293b;font-weight:500}.meeting-edit-header{align-items:flex-start;display:flex;justify-content:space-between;margin-bottom:2rem}.meeting-edit-header h1{color:#1e293b;font-size:2rem;font-weight:700;margin:0}.meeting-status-badge{border-radius:6px;font-size:.875rem;font-weight:500;letter-spacing:.05em;padding:.5rem 1rem;text-transform:uppercase}.meeting-status-badge.active{background:#dcfce7;color:#166534}.meeting-status-badge.inactive{background:#fef3c7;color:#92400e}.meeting-edit-tabs{border-bottom:1px solid #e2e8f0;display:flex;gap:.5rem;margin-bottom:2rem}.meeting-tab{background:none;border:none;border-bottom:2px solid #0000;color:#64748b;cursor:pointer;font-size:.875rem;font-weight:500;padding:.75rem 1.5rem;transition:all .2s ease}.meeting-tab:hover{background:#f8fafc;color:#374151}.meeting-tab.active{background:#fff;border-bottom-color:#3b82f6;color:#3b82f6}.meeting-edit-content{background:#fff;border-radius:12px;box-shadow:0 1px 3px #0000001a;overflow:visible;padding:2rem;position:relative}.meeting-form-section{margin-bottom:2rem}.meeting-form-section h3{color:#1e293b;font-size:1.25rem;font-weight:600;margin:0 0 1.5rem}.meeting-form-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:1.5rem}.meeting-form-group{display:flex;flex-direction:column}.meeting-form-group label{color:#374151;font-size:.875rem;font-weight:500;margin-bottom:.5rem}.meeting-form-group input,.meeting-form-group textarea{background:#fff;border:1px solid #d1d5db;border-radius:6px;font-size:.875rem;padding:.75rem;transition:border-color .2s ease}.meeting-form-group input:focus,.meeting-form-group textarea:focus{border-color:#3b82f6;box-shadow:0 0 0 2px #3b82f61a;outline:none}.meeting-form-group input:disabled,.meeting-form-group textarea:disabled{background:#f9fafb;color:#9ca3af;cursor:not-allowed}.meeting-questions-header{align-items:center;border-bottom:1px solid #e5e7eb;display:flex;justify-content:space-between;margin-bottom:1.5rem;padding-bottom:1rem}.meeting-questions-header h3{color:#1f2937;font-size:1.125rem;font-weight:600;margin:0}.meeting-questions-actions{align-items:center;display:flex;gap:.75rem}.btn{align-items:center;border:none;border-radius:6px;cursor:pointer;display:inline-flex;font-size:.875rem;font-weight:500;gap:.5rem;padding:.75rem 1.5rem;text-decoration:none;transition:all .2s ease}.btn:disabled{cursor:not-allowed;opacity:.6}.btn-primary{background:#3b82f6;color:#fff}.btn-primary:hover:not(:disabled){background:#2563eb}.btn-secondary{background:#f1f5f9;border:1px solid #e2e8f0;color:#475569}.btn-secondary:hover:not(:disabled){background:#e2e8f0}@media (max-width:768px){.meeting-edit-page{padding:1rem}.meeting-edit-breadcrumb{flex-wrap:wrap;gap:.25rem}.meeting-edit-header{align-items:flex-start;flex-direction:column;gap:1rem}.meeting-edit-header h1{font-size:1.5rem}.meeting-edit-tabs{flex-wrap:wrap}.meeting-form-grid{grid-template-columns:1fr}.meeting-questions-header{align-items:flex-start;flex-direction:column;gap:1rem}.meeting-questions-actions{justify-content:flex-start;width:100%}}@media (max-width:480px){.meeting-edit-content{padding:1rem}.btn,.meeting-tab{font-size:.8rem;padding:.5rem 1rem}}.admin-dashboard{background-color:#f8fafc;display:flex;flex-direction:column;min-height:100vh;position:relative}.ad-navbar-trigger{background:#0000;height:20px;left:0;position:fixed;right:0;top:0;z-index:1002}.ad-navbar-trigger:after{background:#2563eb4d;border-radius:0 0 4px 4px;content:"";height:4px;left:50%;opacity:0;position:absolute;top:0;transform:translateX(-50%);transition:opacity .3s;width:100px}.ad-navbar-trigger:hover:after{opacity:1}.ad-header-group{background:#fff;box-shadow:0 4px 20px #00000014;display:flex;flex-direction:column;left:0;position:fixed;right:0;top:0;transform:translateY(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:1001}.ad-header-group:hover,.ad-navbar-trigger:hover+.ad-header-group{transform:translateY(0)}.admin-nav{-ms-overflow-style:none;background:#fff;border-top:1px solid #f1f5f9;display:flex;overflow-x:auto;padding:0 2rem;scrollbar-width:none}.admin-nav::-webkit-scrollbar{display:none}.nav-btn{background:none;border:none;border-bottom:2px solid #0000;color:#64748b;cursor:pointer;font-size:.95rem;font-weight:500;padding:1rem 1.5rem;transition:all .2s;white-space:nowrap}.nav-btn:hover{background-color:#f8fafc;color:#1e293b}.nav-btn.active{border-bottom-color:#2563eb;color:#2563eb}.admin-content{box-sizing:border-box;height:100vh;overflow-y:auto;padding-top:0}@media (max-width:768px){.admin-nav{padding:0 1rem}.nav-btn{font-size:.85rem;padding:.75rem 1rem}}:root{--ide-sidebar-bg:#f8f9fa;--ide-border:#e9ecef;--ide-accent:#667eea;--ide-accent-hover:#5a6fd8;--ide-text-main:#2d3436;--ide-text-muted:#636e72}.ide-container{flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;height:100vh;overflow:hidden}.ide-container,.ide-header{background:#fff;display:flex}.ide-header{align-items:center;border-bottom:1px solid #e9ecef;border-bottom:1px solid var(--ide-border);flex-shrink:0;height:50px;justify-content:space-between;padding:0 1rem;z-index:10}.ide-logo{color:#667eea;color:var(--ide-accent);font-weight:700;gap:.5rem}.ide-logo,.ide-status{align-items:center;display:flex}.ide-status{color:#636e72;color:var(--ide-text-muted);font-size:.85rem;gap:6px}.status-dot{background-color:#10b981;border-radius:50%;height:8px;width:8px}.status-dot.unsaved{background-color:#f59e0b}.save-success{align-items:center;animation:fadeOut 2.5s forwards;color:#10b981;display:flex;font-size:.8rem;font-weight:600;gap:4px;margin-left:8px}.ide-actions{display:flex;gap:.5rem}.ide-btn{background:#fff;border:1px solid #d1d5db;border-radius:6px;color:#000;cursor:pointer;font-size:.85rem;font-weight:500;padding:.4rem .8rem;transition:all .2s}.ide-btn:hover{background:#f3f4f6}.ide-btn-primary{background:#667eea;background:var(--ide-accent);border-color:#667eea;border-color:var(--ide-accent);color:#fff}.ide-btn-primary:hover{background:#5a6fd8;background:var(--ide-accent-hover)}.ide-btn-run{align-items:center;background:var(--primary);border:none;color:#fff;display:flex;gap:5px}.ide-btn-run:hover{background:var(--primary-dark)}.ide-btn svg{margin-right:4px}@keyframes fadeOut{0%{opacity:1;transform:translateY(0)}70%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-5px)}}.ide-body{display:flex;flex:1 1;overflow:hidden}.ide-sidebar{background:#f8f9fa;background:var(--ide-sidebar-bg);border-right:1px solid #e9ecef;border-right:1px solid var(--ide-border);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;width:250px}.sidebar-section{padding:.5rem 0}.sidebar-title{align-items:center;background:#f8f9fa;background:var(--ide-sidebar-bg);color:#636e72;color:var(--ide-text-muted);display:flex;font-size:.75rem;font-weight:700;justify-content:space-between;padding:.5rem 1rem;position:-webkit-sticky;position:sticky;text-transform:uppercase;top:0;z-index:1}.file-list{list-style:none;margin:0;padding:0}.folder-group{margin-bottom:2px}.folder-header{align-items:center;color:#2d3436;color:var(--ide-text-main);cursor:pointer;display:flex;font-size:.85rem;font-weight:600;gap:6px;justify-content:space-between;padding:.3rem 1rem}.folder-header:hover{background:#e9ecef}.folder-content{padding-left:0}.folder-content .file-item{padding-left:1.8rem}.file-item{align-items:center;border-left:3px solid #0000;color:#2d3436;color:var(--ide-text-main);cursor:pointer;display:flex;font-size:.9rem;justify-content:space-between;padding:.4rem 1rem}.file-item:hover{background:#e9ecef}.file-item.active{background:#fff;border-left-color:#667eea;border-left-color:var(--ide-accent);font-weight:500}.file-name{align-items:center;display:flex;gap:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-actions-hover{display:none;gap:4px}.file-item:hover .file-actions-hover,.folder-header:hover .file-actions-hover,.icon-btn{display:flex}.icon-btn{align-items:center;background:none;border:none;color:#000;cursor:pointer;font-size:.8rem;opacity:.6;padding:2px}.icon-btn:hover{opacity:1}.icon-btn.delete-btn:hover{color:#d32f2f}.ide-editor-area{background:#fff;display:flex;flex:1 1;flex-direction:column;min-width:0;position:relative}.editor-tabs{background:#f8f9fa;background:var(--ide-sidebar-bg);border-bottom:1px solid #e9ecef;border-bottom:1px solid var(--ide-border);display:flex;flex-shrink:0;overflow-x:auto}.editor-tab{align-items:center;border-right:1px solid #e9ecef;border-right:1px solid var(--ide-border);color:#636e72;color:var(--ide-text-muted);cursor:pointer;display:flex;font-size:.85rem;gap:8px;justify-content:space-between;min-width:120px;padding:.5rem 1rem}.editor-tab.active{background:#fff;border-top:2px solid #667eea;border-top:2px solid var(--ide-accent);color:#667eea;color:var(--ide-accent);font-weight:500}.editor-tab:hover{background:#f1f3f5}.editor-tab.active:hover{background:#fff}.tab-close{align-items:center;display:flex;font-size:1rem;line-height:.5;opacity:.5}.tab-close:hover{color:#d32f2f;opacity:1}.editor-content{flex:1 1;height:100%;overflow:auto;position:relative}.empty-editor{align-items:center;color:#636e72;color:var(--ide-text-muted);height:100%;justify-content:center}.empty-editor,.ide-preview{display:flex;flex-direction:column}.ide-preview{background:#fdfdfd;border-left:1px solid #e9ecef;border-left:1px solid var(--ide-border);flex-shrink:0;transition:width .2s ease;width:400px}.preview-header{align-items:center;background:#fff;border-bottom:1px solid #e9ecef;border-bottom:1px solid var(--ide-border);color:#636e72;color:var(--ide-text-muted);display:flex;flex-shrink:0;font-size:.85rem;font-weight:600;justify-content:space-between;padding:.5rem 1rem}.preview-scroll{flex:1 1;overflow-y:auto;padding:1rem}.result-card{background:#fff;border:1px solid #e9ecef;border:1px solid var(--ide-border);border-radius:8px;box-shadow:0 2px 5px #00000008;margin-bottom:1rem;padding:1.5rem;text-align:center}.result-meta{color:#adb5bd;font-size:.75rem;margin-top:.5rem;text-align:right}.output-raw{background:#2d3436;border-radius:6px;color:#f8f9fa;font-family:Monaco,monospace;font-size:.85rem;margin-top:1rem;padding:1rem;text-align:left;white-space:pre-wrap}.variables-panel{background:#fff;border-top:1px solid #e9ecef;border-top:1px solid var(--ide-border);display:flex;flex-direction:column;flex-shrink:0;height:200px}.vars-list{display:flex;flex-wrap:wrap;gap:.5rem;overflow-y:auto;padding:.5rem}.var-chip{background:#eef2ff;border:1px solid #c7d2fe;border-radius:12px;color:#667eea;color:var(--ide-accent);font-family:monospace;font-size:.75rem;padding:2px 8px}.ide-error-banner{align-items:center;background:#fef2f2;border-bottom:1px solid #fee2e2;color:#991b1b;display:flex;font-size:.9rem;justify-content:space-between;padding:.5rem 1rem}@media (max-width:1024px){.ide-preview{bottom:0;box-shadow:-5px 0 15px #0000001a;position:absolute;right:0;top:50px;transform:translateX(100%);width:50%}.ide-preview.open{transform:translateX(0)}}.lesson-timer{background:#fff;border:2px solid #e2e8f0;border-radius:12px;box-shadow:0 4px 12px #00000026;min-width:200px;padding:.75rem 1rem;position:fixed;right:20px;top:100px;transition:all .3s ease;z-index:1000}.timer-content{align-items:center;display:flex;gap:.75rem}.timer-icon{font-size:1.25rem;opacity:.8}.timer-display{flex:1 1}.timer-time{color:#1e293b;font-size:1.125rem;font-weight:600;margin-bottom:.25rem}.timer-label{color:#64748b;font-size:.8rem;font-weight:500}.timer-progress{background-color:#e2e8f0;border-radius:2px;height:4px;margin-top:.75rem;overflow:hidden;width:100%}.timer-progress-bar{background:var(--primary);border-radius:2px;height:100%;transition:width 1s ease}.timer-normal{border-color:#e2e8f0}.timer-normal .timer-progress-bar{background:linear-gradient(90deg,#10b981,#3b82f6)}.timer-warning{background-color:#fef3c7;border-color:#f59e0b}.timer-warning .timer-time{color:#92400e}.timer-warning .timer-progress-bar{background:linear-gradient(90deg,#f59e0b,#d97706)}.timer-critical{animation:pulse-critical 1s infinite;background-color:#fee2e2;border-color:#ef4444}.timer-critical .timer-time{color:#dc2626}.timer-critical .timer-progress-bar{background:linear-gradient(90deg,#ef4444,#dc2626)}@keyframes pulse-critical{0%,to{box-shadow:0 2px 8px #ef444433;transform:scale(1)}50%{box-shadow:0 4px 16px #ef44444d;transform:scale(1.02)}}@media (max-width:768px){.lesson-timer{left:10px;min-width:auto;padding:.5rem .75rem;right:10px;top:70px}.timer-content{gap:.5rem}.timer-icon,.timer-time{font-size:1rem}.timer-label{font-size:.75rem}.timer-progress{height:3px;margin-top:.5rem}}:root{--primary-blue:#2563eb;--primary-blue-dark:#1d4ed8;--surface:#fff;--surface-muted:#f8fafc;--text-main:#1e293b;--text-muted:#64748b;--success:#10b981;--warning:#f59e0b;--error:#ef4444}.lp-page{background-color:#fff;background-color:var(--surface);display:flex;flex-direction:column;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;min-height:100vh;overflow:hidden;position:relative}.lp-navbar-trigger{background:#0000;cursor:pointer;height:20px;left:0;position:fixed;right:0;top:0;z-index:101}.lp-navbar-trigger:after{background:#2563eb33;border-radius:0 0 8px 8px;content:"";height:6px;left:50%;opacity:.6;position:absolute;top:0;transform:translateX(-50%);transition:opacity .3s ease,height .3s ease;width:60px}.lp-navbar-trigger:hover:after{background:#2563eb99;height:8px;opacity:1}.lp-header{align-items:center;background:#fff;background:var(--surface);border-bottom:1px solid #e2e8f0;box-shadow:0 4px 20px #00000014;box-sizing:border-box;display:flex;height:70px;justify-content:space-between;left:0;padding:.75rem 2rem;position:fixed;right:0;top:0;transform:translateY(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:100}.lp-header:hover,.lp-navbar-trigger:hover+.lp-header{transform:translateY(0)}.lp-header-right{align-items:center;display:flex;gap:1.5rem}.lp-header h1{color:#1e293b;color:var(--text-main);font-size:1.1rem;font-weight:600;margin:0;max-width:400px;overflow:hidden;text-align:right;text-overflow:ellipsis;white-space:nowrap}.lp-checkpoint-badge{align-items:center;background:#fffbeb;border:1px solid #fcd34d;border-radius:20px;color:#f59e0b;color:var(--warning);display:flex;font-size:.7rem;font-weight:700;gap:6px;letter-spacing:.5px;padding:.3rem .6rem;text-transform:uppercase}.lp-back-btn,.lp-restart-btn{align-items:center;background-color:#2563eb;background-color:var(--primary-blue);border:none;border-radius:8px;box-shadow:0 2px 4px #2563eb33;color:#fff;cursor:pointer;display:flex;font-size:.9rem;font-weight:600;gap:8px;padding:.6rem 1.2rem;transition:all .2s ease;white-space:nowrap}.lp-back-btn:hover,.lp-restart-btn:hover{background-color:#1d4ed8;background-color:var(--primary-blue-dark);box-shadow:0 4px 6px #2563eb4d;transform:translateY(-1px)}.lp-content{box-sizing:border-box;display:flex;flex:1 1;flex-direction:column;margin:0;padding:0;width:100%}.lp-content>div{background:#0000!important;border:none!important;border-radius:0!important;box-shadow:none!important;padding:0!important}.lp-empty{color:#64748b;color:var(--text-muted);margin-top:4rem;text-align:center}.lp-celebration-page{align-items:center;background:#fff;background:var(--surface);bottom:0;display:flex;height:100vh;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:200}.lp-celebration-content{animation:slideUp .5s cubic-bezier(.16,1,.3,1);background:#fff;background:var(--surface);border:1px solid #f1f5f9;border-radius:24px;box-shadow:0 20px 25px -5px #0000001a;max-width:500px;padding:2.5rem;text-align:center;width:90%}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.lp-icon-wrapper{align-items:center;border-radius:50%;display:flex;height:80px;justify-content:center;margin:0 auto 1.5rem;width:80px}.lp-state-success .lp-icon-wrapper{background:#dcfce7;color:#10b981;color:var(--success)}.lp-state-success .lp-stat-value{color:#10b981;color:var(--success)}.lp-state-retry .lp-icon-wrapper{background:#fef3c7}.lp-state-retry .lp-icon-wrapper,.lp-state-retry .lp-stat-value{color:#f59e0b;color:var(--warning)}.lp-celebration-title{color:#1e293b;color:var(--text-main);font-size:2rem;font-weight:800;margin:0 0 .5rem}.lp-lesson-subtitle{color:#64748b;color:var(--text-muted);font-size:1.1rem;margin:0 0 2rem}.lp-completion-stats{grid-gap:1rem;background:#f8fafc;background:var(--surface-muted);border:1px solid #e2e8f0;border-radius:16px;display:grid;gap:1rem;grid-template-columns:1fr 1fr 1fr;margin-bottom:2rem;padding:1.5rem}.lp-stat-value{display:block;font-size:1.5rem;font-weight:700}.lp-stat-label{color:#64748b;color:var(--text-muted);font-size:.75rem;font-weight:600;letter-spacing:1px;margin-top:4px;text-transform:uppercase}.lp-completion-message{color:#1e293b;color:var(--text-main);font-size:1rem;line-height:1.5;margin-bottom:2rem}.lp-completion-actions{display:flex;flex-direction:column;gap:1rem}.lp-primary-btn{align-items:center;background:#2563eb;background:var(--primary-blue);border:none;border-radius:12px;box-shadow:0 4px 6px #2563eb33;color:#fff;cursor:pointer;display:flex;font-size:1rem;font-weight:600;gap:8px;justify-content:center;padding:1rem;transition:transform .2s;width:100%}.lp-primary-btn:hover{background:#1d4ed8;background:var(--primary-blue-dark);transform:translateY(-2px)}.lp-secondary-btn{background:#0000;border:none;color:#64748b;color:var(--text-muted);cursor:pointer;font-size:.9rem;font-weight:500;padding:.8rem;transition:color .2s}.lp-secondary-btn:hover{color:#1e293b;color:var(--text-main);text-decoration:underline}@media (max-width:600px){.lp-header h1{font-size:1rem}.lp-celebration-content{padding:1.5rem}.lp-completion-stats{gap:.5rem;padding:1rem}.lp-stat-value{font-size:1.2rem}}.blog-renderer{color:#333;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.7;margin:0 auto;max-width:800px}.blog-renderer--empty{padding:40px 20px;text-align:center}.blog-empty{color:#6c757d;font-style:italic}.blog-paragraph{font-size:16px;line-height:1.7;margin:0 0 1.5em}.blog-paragraph:last-child{margin-bottom:0}.blog-heading{color:#2c3e50;font-weight:600;line-height:1.3;margin:2em 0 1em}.blog-heading:first-child{margin-top:0}.blog-heading--1{border-bottom:2px solid #e1e5e9;font-size:2.5em;margin:1.5em 0 1em;padding-bottom:.3em}.blog-heading--2{font-size:2em;margin:1.8em 0 .8em}.blog-heading--3{font-size:1.5em;margin:1.6em 0 .6em}.blog-heading--4{font-size:1.25em;margin:1.4em 0 .5em}.blog-heading--5{font-size:1.1em;margin:1.2em 0 .4em}.blog-heading--6{font-size:1em;letter-spacing:.5px;margin:1em 0 .3em;text-transform:uppercase}.blog-image{margin:2em 0;text-align:center}.blog-image__img{border-radius:8px;box-shadow:0 4px 12px #0000001a;height:auto;max-width:100%;transition:transform .2s ease,box-shadow .2s ease}.blog-image__img:hover{box-shadow:0 8px 24px #00000026;transform:scale(1.02)}.blog-image__caption{color:#6c757d;font-size:14px;font-style:italic;line-height:1.4;margin-top:.8em}.blog-image-placeholder{border:2px dashed #dee2e6;border-radius:8px;color:#6c757d;font-style:italic;padding:3em 2em}.blog-image-placeholder,.blog-math{background-color:#f8f9fa;margin:2em 0;text-align:center}.blog-math{border-left:4px solid #007bff;border-radius:0 8px 8px 0;overflow-x:auto;padding:1.5em}.blog-problem{background-color:#fff3cd;border:1px solid #ffeaa7;border-left:4px solid #ffc107;border-radius:0 8px 8px 0;margin:2em 0;padding:1.5em}.blog-problem__label{color:#856404;font-size:14px;font-weight:600;letter-spacing:.5px;margin-bottom:.8em;text-transform:uppercase}.blog-problem__content{color:#856404;line-height:1.6}.blog-solution{margin:2em 0}.blog-solution__toggle{background:#e3f2fd;border:1px solid #2196f3;border-radius:6px;color:#1976d2;cursor:pointer;font-size:14px;font-weight:500;margin-bottom:0;padding:12px 16px;text-align:left;transition:all .2s ease;width:100%}.blog-solution__toggle:hover{background:#bbdefb;border-color:#1976d2}.blog-solution.expanded .blog-solution__toggle{border-bottom:none;border-bottom-left-radius:0;border-bottom-right-radius:0}.blog-solution__label{align-items:center;display:flex;gap:8px;letter-spacing:normal;margin:0;text-transform:none}.blog-solution.expanded .blog-solution__content{background:#f8f9fa;border:1px solid #2196f3;border-radius:0 0 6px 6px;border-top:none;color:#0c5460;line-height:1.6;margin-top:0;padding:16px}.blog-unknown{background-color:#f8d7da;border:1px solid #f5c6cb;border-left:4px solid #dc3545;border-radius:0 8px 8px 0;color:#721c24;margin:2em 0;padding:1.5em}@media (max-width:768px){.blog-renderer{padding:0 16px}.blog-heading--1{font-size:2em}.blog-heading--2{font-size:1.6em}.blog-heading--3{font-size:1.3em}.blog-paragraph{font-size:15px}.blog-math,.blog-problem{padding:1em}.blog-solution__toggle{font-size:13px;padding:10px 12px}.blog-solution.expanded .blog-solution__content{padding:12px}.blog-image{margin:1.5em -16px}.blog-image__img{border-radius:0}}@media print{.blog-renderer{background:#fff;color:#000}.blog-image__img{box-shadow:none;max-width:100%}.blog-math,.blog-problem,.blog-solution.expanded .blog-solution__content,.blog-solution__toggle{background:#fff;border:1px solid #000}}.rich-text-editor{background:#fff;border:1px solid #e1e5e9;border-radius:6px;display:flex;flex-direction:column;overflow:hidden;position:relative;transition:border-color .2s ease,box-shadow .2s ease}.rich-text-editor:focus-within{border-color:#007bff;box-shadow:0 0 0 3px #007bff1a}.rich-text-toolbar{align-items:center;background:#f8f9fa;border-bottom:1px solid #e9ecef;display:flex;flex-wrap:wrap;gap:2px;padding:8px}.toolbar-btn{align-items:center;background:#0000;border:1px solid #0000;border-radius:4px;color:#495057;cursor:pointer;display:flex;font-size:14px;height:32px;justify-content:center;transition:all .2s ease;width:32px}.toolbar-btn:hover{background:#e9ecef;border-color:#adb5bd}.toolbar-btn:active{background:#dee2e6;transform:translateY(1px)}.toolbar-btn.clear-btn{color:#dc3545;font-size:11px;font-weight:500;padding:0 8px;width:auto}.toolbar-separator{background:#dee2e6;height:20px;margin:0 4px;width:1px}.font-size-selector{background:#fff;border:1px solid #dee2e6;border-radius:4px;cursor:pointer;font-size:12px;min-width:60px;padding:4px 8px;transition:all .2s ease}.font-size-selector:hover{background:#e9ecef;border-color:#adb5bd}.font-size-selector:focus{border-color:#007bff;box-shadow:0 0 0 2px #007bff40;outline:none}.toolbar-hint{color:#6c757d;font-size:11px;font-style:italic;margin-left:auto}.rich-text-content{background:#fff;font-family:inherit;font-size:16px;line-height:1.5;max-height:300px;outline:none;overflow-y:auto;padding:12px 16px}.rich-text-content:empty:before{color:#6c757d;content:attr(data-placeholder);pointer-events:none}.rich-text-content b,.rich-text-content strong{font-weight:700}.rich-text-content em,.rich-text-content i{font-style:italic}.rich-text-content u{text-decoration:underline}.rich-text-content font[size="1"]{font-size:8pt}.rich-text-content font[size="2"]{font-size:10pt}.rich-text-content font[size="3"]{font-size:12pt}.rich-text-content font[size="4"]{font-size:14pt}.rich-text-content font[size="5"]{font-size:18pt}.rich-text-content font[size="6"]{font-size:24pt}.rich-text-content font[size="7"]{font-size:36pt}.rich-text-content *{max-width:100%}.rich-text-content .latex-expression{background-color:#007bff1a;border-radius:3px;cursor:help;font-family:Courier New,monospace;font-size:.95em;margin:0 1px;padding:2px 4px;transition:background-color .2s ease}.rich-text-content .latex-expression:hover{background-color:#007bff33}.rich-text-content p{margin:0 0 8px}.rich-text-content p:last-child{margin-bottom:0}.latex-preview-popup{background:#fff;border:1px solid #007bff;border-radius:6px;box-shadow:0 4px 12px #00000026;max-height:200px;max-width:300px;overflow:auto;padding:12px;pointer-events:none;position:fixed;transform:translateY(-100%);z-index:1000}.latex-preview-popup:before{border:6px solid #0000;border-top-color:#007bff;content:"";left:20px;position:absolute;top:100%}.latex-preview-popup:after{border:5px solid #0000;border-top-color:#fff;content:"";left:21px;position:absolute;top:100%}@media (max-width:768px){.rich-text-toolbar{gap:1px;padding:6px}.toolbar-btn{font-size:12px;height:28px;width:28px}.toolbar-hint{display:none}.latex-preview-popup{font-size:14px;max-width:250px}}.blog-editor{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;margin:0 auto;max-width:800px;padding:20px}.editor-block{border-radius:8px;margin-bottom:16px;position:relative;transition:all .2s ease}.editor-block.focused,.editor-block:hover{background-color:#f8f9fa}.editor-block.focused{box-shadow:0 0 0 2px #007bff}.block-toolbar{align-items:center;display:flex;gap:8px;margin-bottom:8px;opacity:0;padding:8px;transition:opacity .2s ease}.editor-block.focused .block-toolbar,.editor-block:hover .block-toolbar{opacity:1}.block-type-selector,.heading-level-selector{background:#fff;border:1px solid #ddd;border-radius:4px;cursor:pointer;font-size:12px;padding:4px 8px}.block-type-selector:focus,.heading-level-selector:focus{border-color:#007bff;outline:none}.block-actions{display:flex;gap:4px;margin-left:auto}.add-block-btn,.delete-block-btn{align-items:center;border:none;border-radius:4px;cursor:pointer;display:flex;font-size:14px;font-weight:700;height:24px;justify-content:center;transition:all .2s ease;width:24px}.add-block-btn{background:#007bff;color:#fff}.add-block-btn:hover{background:#0056b3}.delete-block-btn{background:#dc3545;color:#fff}.delete-block-btn:hover{background:#c82333}.block-input{border:1px solid #e1e5e9;border-radius:6px;font-family:inherit;font-size:16px;line-height:1.5;min-height:44px;padding:12px 16px;resize:vertical;transition:border-color .2s ease,box-shadow .2s ease;width:100%}.block-input:focus{border-color:#007bff;box-shadow:0 0 0 3px #007bff1a;outline:none}.block-input::placeholder{color:#6c757d}.block-input--paragraph{font-size:16px;line-height:1.6}.block-input--heading{font-weight:600;line-height:1.3}.block-input--h1{font-size:32px}.block-input--h2{font-size:24px}.block-input--h3{font-size:20px}.block-input--h4{font-size:18px}.block-input--h5{font-size:16px}.block-input--h6{font-size:14px}.block-input--math{background-color:#f8f9fa;border-left:4px solid #007bff;font-family:Courier New,monospace}.block-input--problem{background-color:#fff3cd;border-left:4px solid #ffc107}.block-input--solution{background-color:#d1ecf1;border-left:4px solid #17a2b8}.image-block{display:flex;flex-direction:column;gap:12px}.image-upload-area{background-color:#f8f9fa;border:2px dashed #dee2e6;border-radius:8px;cursor:pointer;padding:40px 20px;text-align:center;transition:all .2s ease}.image-upload-area.drag-over,.image-upload-area:hover{background-color:#007bff0d;border-color:#007bff}.image-upload-content{align-items:center;display:flex;flex-direction:column;gap:8px}.image-upload-content span{font-size:2rem}.image-upload-content p{color:#6c757d;font-size:14px;margin:0}.file-input-label{color:#007bff;cursor:pointer;font-weight:500;text-decoration:underline}.file-input-label:hover{color:#0056b3}.image-uploading{background-color:#e3f2fd;border-radius:8px;color:#1976d2;font-weight:500;padding:20px;text-align:center}.image-preview{display:inline-block;max-width:100%;position:relative}.image-preview-img{border-radius:8px;box-shadow:0 2px 8px #0000001a;height:auto;max-width:100%}.image-remove-btn{background:#dc3545e6;border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:12px;padding:4px 8px;position:absolute;right:8px;top:8px;transition:background-color .2s ease}.image-remove-btn:hover{background:#dc3545}.image-inputs{display:flex;flex-direction:column;gap:8px}.image-alt-input,.image-url-input{border:1px solid #ddd;border-radius:4px;font-size:14px;padding:8px 12px}.image-alt-input:focus,.image-url-input:focus{border-color:#007bff;outline:none}.formatting-toolbar{align-items:center;background:#f8f9fa;border:1px solid #e9ecef;border-radius:6px 6px 0 0;display:flex;gap:4px;margin-bottom:-1px;padding:8px}.format-btn{align-items:center;background:#fff;border:1px solid #dee2e6;border-radius:4px;cursor:pointer;display:flex;font-size:12px;height:28px;justify-content:center;transition:all .2s ease;width:28px}.format-btn:hover{background:#e9ecef;border-color:#adb5bd}.format-btn:active{background:#dee2e6;transform:translateY(1px)}.format-hint{color:#6c757d;font-size:11px;font-style:italic;margin-left:auto}.content-input-wrapper{display:flex;flex-direction:column}.content-input-wrapper .block-input{border-radius:0 0 6px 6px}.math-block{gap:12px}.math-block,.math-block__input{display:flex;flex-direction:column}.math-block__preview{background-color:#f8f9fa;border:1px solid #e9ecef;border-radius:6px;padding:16px}.math-block__preview-label{color:#6c757d;font-size:12px;font-weight:600;letter-spacing:.5px;margin-bottom:8px;text-transform:uppercase}@media (max-width:768px){.blog-editor{padding:12px}.block-toolbar{flex-wrap:wrap;gap:6px}.block-input--h1{font-size:24px}.block-input--h2{font-size:20px}.block-input--h3{font-size:18px}}::-webkit-scrollbar{height:8px;width:8px}::-webkit-scrollbar-track{background:var(--surface-muted);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:var(--radius-sm);-webkit-transition:background var(--transition-smooth);transition:background var(--transition-smooth)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}::-webkit-scrollbar-corner{background:var(--surface-muted)}*{scrollbar-color:var(--text-muted) var(--surface-muted);scrollbar-width:thin}.math-left-align mjx-container[jax=CHTML][display=true]{text-align:left!important}:root{--primary-color:var(--primary-blue);--secondary-color:#3bd9c1;--accent-color:var(--warning);--error-color:var(--error);--success-color:var(--success);--warning-color:var(--warning);--background:var(--surface);--border:var(--surface-border)}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.25;margin-bottom:.5rem}h1{font-size:2.25rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}.math-content{margin:1rem 0}.math-inline{display:inline}.math-display{display:block;margin:1.5rem 0;text-align:center}@media (max-width:768px){h1{font-size:1.875rem}h2{font-size:1.5rem}h3{font-size:1.25rem}}[data-lk-theme=default]{--lk-bg:#111;--lk-bg2:#1e1e1e;--lk-bg3:#2b2b2b;--lk-bg4:#373737;--lk-bg5:#444;--lk-fg:#fff;--lk-fg2:#f5f5f5;--lk-fg3:#ebebeb;--lk-fg4:#e0e0e0;--lk-fg5:#d6d6d6;--lk-border-color:#ffffff1a;--lk-accent-fg:#fff;--lk-accent-bg:#1f8cf9;--lk-accent2:#3396fa;--lk-accent3:#47a0fa;--lk-accent4:#5babfb;--lk-danger-fg:#fff;--lk-danger:#f91f31;--lk-danger2:#fa3343;--lk-danger3:#fa4756;--lk-danger4:#fb5b68;--lk-success-fg:#fff;--lk-success:#1ff968;--lk-success2:#33fa75;--lk-success3:#47fa83;--lk-success4:#5bfb90;--lk-control-fg:var(--lk-fg);--lk-control-bg:var(--lk-bg2);--lk-control-hover-bg:var(--lk-bg3);--lk-control-active-bg:var(--lk-bg4);--lk-control-active-hover-bg:var(--lk-bg5);--lk-connection-excellent:#06db4d;--lk-connection-good:#f9b11f;--lk-connection-poor:#f91f31;--lk-font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";--lk-font-size:16px;--lk-line-height:1.5;--lk-border-radius:0.5rem;--lk-box-shadow:0 0.5rem 1.5rem #00000026;--lk-drop-shadow:#fff3 0px 0px 24px;--lk-grid-gap:0.5rem;--lk-control-bar-height:69px;--lk-chat-header-height:69px;color-scheme:dark}.lk-button,.lk-chat-toggle,.lk-disconnect-button,.lk-start-audio-button{align-items:center;background-color:var(--lk-control-bg);background-image:none;border:0;border-radius:var(--lk-border-radius);color:var(--lk-control-fg);cursor:pointer;display:inline-flex;font-size:inherit;gap:.5rem;justify-content:center;line-height:inherit;padding:.625rem 1rem;position:relative;-webkit-user-select:none;user-select:none;white-space:nowrap}.lk-button:not(:disabled):hover,.lk-chat-toggle:not(:disabled):hover,.lk-disconnect-button:not(:disabled):hover,.lk-start-audio-button:not(:disabled):hover{background-color:var(--lk-control-hover-bg)}.lk-button>svg,.lk-chat-toggle>svg,.lk-disconnect-button>svg,.lk-start-audio-button>svg{overflow:visible}.lk-button[aria-pressed=true],[aria-pressed=true].lk-chat-toggle,[aria-pressed=true].lk-disconnect-button,[aria-pressed=true].lk-start-audio-button{background-color:var(--lk-control-active-bg)}.lk-button[aria-pressed=true]:hover,[aria-pressed=true].lk-chat-toggle:hover,[aria-pressed=true].lk-disconnect-button:hover,[aria-pressed=true].lk-start-audio-button:hover{background-color:var(--lk-control-active-hover-bg)}.lk-button[data-lk-source=screen_share][data-lk-enabled=true],[data-lk-source=screen_share][data-lk-enabled=true].lk-chat-toggle,[data-lk-source=screen_share][data-lk-enabled=true].lk-disconnect-button,[data-lk-source=screen_share][data-lk-enabled=true].lk-start-audio-button{background-color:var(--lk-accent-bg)}.lk-button[data-lk-source=screen_share][data-lk-enabled=true]:hover,[data-lk-source=screen_share][data-lk-enabled=true].lk-chat-toggle:hover,[data-lk-source=screen_share][data-lk-enabled=true].lk-disconnect-button:hover,[data-lk-source=screen_share][data-lk-enabled=true].lk-start-audio-button:hover{background-color:var(--lk-accent2)}.lk-button:disabled,.lk-chat-toggle:disabled,.lk-disconnect-button:disabled,.lk-start-audio-button:disabled{opacity:.5}.lk-button-group{align-items:stretch;display:inline-flex;height:100%}.lk-button-group>.lk-button:first-child,.lk-button-group>.lk-chat-toggle:first-child,.lk-button-group>.lk-disconnect-button:first-child,.lk-button-group>.lk-start-audio-button:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.lk-button-group-menu{flex-shrink:0;position:relative}.lk-button-group-menu>.lk-button,.lk-button-group-menu>.lk-chat-toggle,.lk-button-group-menu>.lk-disconnect-button,.lk-button-group-menu>.lk-start-audio-button{border-bottom-left-radius:0;border-top-left-radius:0;height:100%}.lk-button-group-menu>.lk-button:after,.lk-button-group-menu>.lk-chat-toggle:after,.lk-button-group-menu>.lk-disconnect-button:after,.lk-button-group-menu>.lk-start-audio-button:after{margin-left:0}.lk-button-menu:after{border-bottom:.125em solid;border-left:.125em solid;content:"";display:inline-block;height:.5em;margin-left:.5rem;margin-top:-.25rem;transform:rotate(-45deg);transform-origin:center center;width:.5em}.lk-disconnect-button{border:1px solid var(--lk-danger);color:var(--lk-danger);font-weight:600}.lk-disconnect-button:not(:disabled):hover{--lk-control-hover-bg:var(--lk-danger2);color:var(--lk-danger-fg)}.lk-disconnect-button:not(:disabled):active{--lk-control-hover-bg:var(--lk-danger3);color:var(--lk-danger-fg)}.lk-chat-toggle{position:relative}.lk-chat-toggle[data-lk-unread-msgs]:not([data-lk-unread-msgs="0"]):after{background:var(--lk-accent-bg);border-radius:50%;content:attr(data-lk-unread-msgs);font-size:.5rem;left:0;line-height:.75;margin-left:.25rem;margin-top:.25rem;padding:.25rem;position:absolute;top:0}.lk-media-device-select:not(:last-child){border-bottom:1px solid var(--lk-border-color);margin-bottom:.75rem;padding-bottom:.5rem}.lk-media-device-select li:not(:last-child){margin-bottom:.25rem}.lk-media-device-select li>.lk-button{justify-content:start;padding-block:.5rem;width:100%}.lk-media-device-select li:not([data-lk-active=true])>.lk-button:not(:disabled):hover{background-color:var(--lk-bg3)}.lk-media-device-select [data-lk-active=false]>.lk-button:hover{background-color:#0000000d;cursor:pointer}.lk-media-device-select [data-lk-active=true]>.lk-button{background-color:var(--lk-accent-bg);color:var(--lk-accent-fg)}.lk-device-menu{background-color:var(--lk-bg2);border:1px solid var(--lk-border-color);border-radius:.75rem;box-shadow:var(--lk-box-shadow);left:0;margin-bottom:.25rem;min-width:10rem;padding:.5rem;position:absolute;top:0;white-space:nowrap;width:-webkit-max-content;width:max-content;z-index:5}.lk-device-menu-heading{font-weight:700;opacity:.65;padding:.25rem .5rem}.lk-start-audio-button{background-color:var(--lk-accent-bg);color:var(--lk-accent-fg)}@media screen and (max-width:600px){.lk-start-audio-button{left:50%;position:fixed;top:50%;transform:translate(-50%,-50%)}}.lk-pagination-control{align-items:stretch;background-color:var(--lk-control-bg);border-radius:var(--lk-border-radius);bottom:1rem;display:flex;left:50%;opacity:0;position:absolute;transform:translateX(-50%);transition:opacity .15s ease-in-out}.lk-pagination-control:hover{opacity:1}.lk-pagination-control>.lk-button:first-child{border-bottom-right-radius:0;border-top-right-radius:0}.lk-pagination-control>.lk-button:first-child>svg{transform:rotate(180deg)}.lk-pagination-control>.lk-button:last-child{border-bottom-left-radius:0;border-top-left-radius:0}.lk-pagination-count{border-inline:1px solid var(--lk-bg);padding:.5rem .875rem}[data-lk-user-interaction=true].lk-pagination-control{opacity:1}.lk-pagination-indicator{align-items:center;background-color:var(--lk-bg2);border-radius:2rem;bottom:calc(var(--lk-grid-gap)/2);display:flex;gap:.2rem;height:var(--lk-grid-gap);left:50%;opacity:1;padding:.2rem .5rem;position:absolute;transform:translateX(-50%);width:-webkit-fit-content;width:fit-content}.lk-pagination-indicator span{background-color:var(--lk-fg);border-radius:9999999px;display:inline-block;height:.4rem;opacity:.35;transition:opacity .2s linear;width:.4rem}.lk-pagination-indicator span[data-lk-active]{opacity:.9}.lk-grid-layout{--lk-col-count:1;--lk-row-count:1;grid-gap:var(--lk-grid-gap);display:grid;grid-auto-rows:minmax(0,1fr);grid-template-columns:repeat(var(--lk-col-count),minmax(0,1fr));height:100%;max-height:100%;max-width:100%;padding:var(--lk-grid-gap);width:100%}.lk-grid-layout[data-lk-pagination=true]{padding-bottom:calc(var(--lk-grid-gap)*2)}.lk-focus-layout{grid-gap:var(--lk-grid-gap);display:grid;gap:var(--lk-grid-gap);grid-template-columns:1fr 5fr;max-height:100%;padding:var(--lk-grid-gap);width:100%}.lk-focused-participant{position:relative}.lk-focused-participant .lk-pip-track{height:auto;position:absolute;right:10px;top:10px;width:20%}@media(max-width:600px){.lk-focus-layout{grid-template-columns:1fr;grid-template-rows:5fr 1fr}.lk-carousel{order:1}}.lk-carousel{display:flex;gap:var(--lk-grid-gap);max-height:100%}.lk-carousel>*{aspect-ratio:16/10;flex-shrink:0;scroll-snap-align:start}.lk-carousel[data-lk-orientation=vertical]{flex-direction:column;overflow-x:hidden;overflow-y:auto;scroll-snap-type:y mandatory}.lk-carousel[data-lk-orientation=vertical]>*{--lk-height-minus-gaps:calc(100% - var(--lk-grid-gap)*(var(--lk-max-visible-tiles) - 1));height:calc(var(--lk-height-minus-gaps)/var(--lk-max-visible-tiles))}.lk-carousel[data-lk-orientation=horizontal]{overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory}.lk-carousel[data-lk-orientation=horizontal]>*{--lk-width-minus-gaps:calc(100% - var(--lk-grid-gap)*(var(--lk-max-visible-tiles) - 1));width:calc(var(--lk-width-minus-gaps)/var(--lk-max-visible-tiles))}.lk-connection-quality{height:1.5rem;width:1.5rem}.lk-track-muted-indicator-camera,.lk-track-muted-indicator-microphone{-webkit-margin-end:.25rem;height:1rem;height:var(--lk-indicator-size,1rem);margin-inline-end:.25rem;position:relative;transition:opacity .25s ease-in-out;width:1rem;width:var(--lk-indicator-size,1rem)}.lk-track-muted-indicator-camera[data-lk-muted=true]{opacity:.5}.lk-track-muted-indicator-microphone{--lk-bg:var(--lk-icon-mic)}.lk-track-muted-indicator-microphone[data-lk-muted=true]{opacity:.5}.lk-participant-name{font-size:.875rem}.lk-participant-media-video{background-color:#000;height:100%;object-fit:cover;object-position:center;width:100%}.lk-participant-media-video[data-lk-orientation=landscape]{object-fit:cover}.lk-participant-media-video[data-lk-orientation=portrait],.lk-participant-media-video[data-lk-source=screen_share]{background-color:var(--lk-bg2);object-fit:contain}.lk-participant-media-audio{width:auto}[data-lk-facing-mode=user] .lk-participant-media-video[data-lk-local-participant=true][data-lk-source=camera]{transform:rotateY(180deg)}.lk-audio-visualizer{align-items:center;aspect-ratio:16/9;background:var(--lk-bg-control);border-radius:.5rem;display:flex;height:100%;justify-content:space-around;min-height:160px;width:100%}.lk-audio-visualizer>rect{fill:var(--lk-accent-bg);transition:transform .1s cubic-bezier(.19,.02,.09,1)}.lk-audio-visualizer>path{stroke:var(--lk-accent-bg);transition:.1s cubic-bezier(.19,.02,.09,1)}.lk-audio-bar-visualizer{align-items:center;background:var(--lk-bg);display:flex;gap:24px;gap:var(--lk-va-bar-gap,24px);height:100%;justify-content:center;width:100%}.lk-audio-bar-visualizer>.lk-audio-bar{background-color:#8883;background-color:var(--lk-va-bar-bg,#8883);border-radius:32px;border-radius:var(--lk-va-bar-border-radius,32px);height:100%;transform-origin:"center";transition:background-color .25s ease-out;width:12px;width:var(--lk-va-bar-width,12px)}.lk-audio-bar-visualizer>.lk-audio-bar.lk-highlighted,.lk-audio-bar-visualizer>[data-lk-highlighted=true],.lk-audio-bar-visualizer[data-lk-va-state=speaking]>.lk-audio-bar{background-color:#888;background-color:var(--lk-fg,#888);transition:none}.lk-audio-bar-visualizer[data-lk-va-state=thinking]{transition:background-color .15s ease-out}.lk-participant-tile{--lk-speaking-indicator-width:2.5px;border-radius:var(--lk-border-radius);display:flex;flex-direction:column;gap:.375rem;overflow:hidden;position:relative}.lk-participant-tile:after{border:0 solid var(--lk-accent-bg);border-radius:var(--lk-border-radius);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0;transition-delay:.5s;transition-duration:.4s;transition-property:border opacity}.lk-participant-tile[data-lk-speaking=true]:not([data-lk-source=screen_share]):after{border-width:var(--lk-speaking-indicator-width);transition-delay:0s;transition-duration:.2s}.lk-participant-tile .lk-focus-toggle-button{background-color:#00000080;border-radius:calc(var(--lk-border-radius)/2);opacity:0;padding:.25rem;position:absolute;right:.25rem;top:.25rem;transition:opacity .2s ease-in-out;transition-delay:.2s}.lk-participant-tile:focus .lk-focus-toggle-button,.lk-participant-tile:hover .lk-focus-toggle-button{opacity:1;transition-delay:0}.lk-participant-tile .lk-connection-quality{opacity:0;transition:opacity .2s ease-in-out;transition-delay:.2s}.lk-participant-tile .lk-connection-quality[data-lk-quality=poor],.lk-participant-tile:focus .lk-connection-quality,.lk-participant-tile:hover .lk-connection-quality{opacity:1;transition-delay:0}.lk-participant-tile .lk-participant-placeholder{align-items:center;background-color:var(--lk-bg2);border-radius:var(--lk-border-radius);display:flex;inset:0;justify-content:center;opacity:0;pointer-events:none;position:absolute;transition:opacity .2s ease-in-out}.lk-participant-tile .lk-participant-placeholder svg{height:100%;padding:10%;width:auto}.lk-participant-tile[data-lk-video-muted=true][data-lk-source=camera] .lk-participant-placeholder{opacity:1}.lk-participant-metadata{align-items:center;bottom:.25rem;display:flex;flex-direction:row;gap:.5rem;justify-content:space-between;left:.25rem;line-height:1;position:absolute;right:.25rem}.lk-participant-metadata-item{align-items:center;background-color:#00000080;border-radius:calc(var(--lk-border-radius)/2);display:flex;padding:.25rem}.lk-toast{align-items:center;background-color:var(--lk-bg);border:1px solid var(--lk-border-color);border-radius:var(--lk-border-radius);box-shadow:var(--lk-box-shadow);display:flex;gap:.5rem;left:50%;padding:.75rem 1.25rem;position:fixed;top:.75rem;transform:translateX(-50%)}.lk-spinner{animation:lk-rotate 2s linear infinite}@keyframes lk-rotate{0%{transform:rotate(0deg)}to{transform:rotate(359deg)}}.lk-room-container{--lk-has-imported-styles:"true";background-color:var(--lk-bg);height:100%;line-height:var(--lk-line-height);position:relative;width:100%}.lk-room-container [class*=" lk-"],.lk-room-container [class^=lk-]{box-sizing:border-box}.lk-audio-conference{height:100%;position:relative;width:100%}.lk-audio-conference-stage{grid-gap:10px;display:grid;gap:10px;grid-template-columns:repeat(3,1fr);height:100%;width:100%}.lk-chat{align-items:end;background-color:var(--lk-bg2);border-left:1px solid var(--lk-border-color);display:grid;grid-template-rows:var(--lk-chat-header-height) 1fr var(--lk-control-bar-height);width:clamp(200px,55ch,60ch)}.lk-chat-header{align-items:center;display:flex;height:var(--lk-chat-header-height);justify-content:center;padding:.75rem;position:relative}.lk-chat-header .lk-close-button{background-color:#0000;position:absolute;right:0;transform:translateX(-50%)}.lk-chat-header .lk-close-button:hover{background-color:var(--lk-control-active-hover-bg)}.lk-chat-messages{max-height:100%;overflow:auto;width:100%}.lk-chat-entry,.lk-chat-messages{display:flex;flex-direction:column;gap:.25rem}.lk-chat-entry{margin:0 .25rem}.lk-chat-entry .lk-meta-data{color:var(--lk-fg5);display:flex;font-size:.75rem;padding:0 .3rem;white-space:nowrap}.lk-chat-entry .lk-meta-data .lk-participant-name{margin-top:1rem}.lk-chat-entry .lk-meta-data .lk-timestamp{align-self:flex-end;margin-left:auto}.lk-chat-entry .lk-edit-button{background:none;border-radius:0;float:right;font-size:12px;margin:0;padding:0 .25rem}.lk-chat-entry .lk-message-body{border-radius:15px;display:inline-block;max-width:calc(100% - 32px);padding:.25rem .75rem;width:-webkit-fit-content;width:fit-content;word-break:break-word}.lk-chat-entry[data-lk-message-origin=local] .lk-message-body{background-color:var(--lk-bg5)}.lk-chat-entry[data-lk-message-origin=remote] .lk-message-body{background-color:var(--lk-accent4)}.lk-chat-entry a{color:inherit;text-decoration:underline}.lk-chat-entry *{-webkit-margin-before:.25em;-webkit-margin-after:.25em;margin-block-end:.25em;margin-block-start:.25em}.lk-chat-entry:last-child{margin-bottom:.25rem}.lk-chat-form{border-top:1px solid var(--lk-border-color);display:flex;gap:.75rem;max-height:var(--lk-control-bar-height);padding:.75rem}.lk-chat-form-input{font-size:inherit;line-height:inherit;width:100%}@media(max-width:600px){.lk-chat{bottom:var(--lk-control-bar-height);max-width:100%;position:fixed;right:0;top:0}}.lk-agent-control-bar,.lk-control-bar{align-items:center;border-top:1px solid var(--lk-border-color);display:flex;gap:.5rem;justify-content:center;max-height:var(--lk-control-bar-height);padding:.75rem}.lk-agent-control-bar{--lk-bg:#0000;--lk-va-bar-width:2px;--lk-va-bar-gap:4px;--lk-va-bar-border-radius:1px;height:var(--lk-control-bar-height)}.lk-agent-control-bar .lk-audio-bar-visualizer .lk-audio-bar.lk-highlighted{filter:none}.lk-prejoin{line-height:var(--lk-line-height)}[data-lk-theme]{color:var(--lk-fg);font-family:var(--lk-font-family);font-size:var(--lk-font-size)}[data-lk-theme] .lk-list{list-style:none;margin:0;padding:0}[data-lk-theme] .lk-form-control{background-color:var(--lk-control-bg);border:1px solid var(--lk-border-color);border-radius:var(--lk-border-radius);font-family:var(--lk-font-family);padding:.625rem 1rem}.lk-prejoin{align-items:center;align-items:stretch;background-color:var(--lk-bg);box-sizing:border-box;display:flex;flex-direction:column;gap:1rem;margin-inline:auto;padding:1rem;width:min(100%,480px)}.lk-prejoin .lk-video-container{aspect-ratio:16/10;background-color:#000;border-radius:var(--lk-border-radius);height:auto;overflow:hidden;position:relative;width:100%}.lk-prejoin .lk-video-container .lk-camera-off-note,.lk-prejoin .lk-video-container video{display:block;height:100%;object-fit:cover;width:100%}.lk-prejoin .lk-video-container video[data-lk-facing-mode=user]{transform:rotateY(180deg)}.lk-prejoin .lk-video-container .lk-camera-off-note{aspect-ratio:16/10;background-color:#000;display:grid;left:0;place-items:center;position:absolute;top:0;width:100%}.lk-prejoin .lk-video-container .lk-camera-off-note>*{height:70%;max-width:100%}.lk-prejoin .lk-audio-container{display:none}.lk-prejoin .lk-audio-container audio{height:auto;width:100%}.lk-prejoin .lk-button-group-container{display:flex;flex-wrap:nowrap;gap:1rem}.lk-prejoin .lk-button-group-container>.lk-button-group{width:50%}.lk-prejoin .lk-button-group-container>.lk-button-group>.lk-button{justify-content:left}.lk-prejoin .lk-button-group-container>.lk-button-group>.lk-button:first-child{width:100%}@media(max-width:400px){.lk-prejoin .lk-button-group-container{flex-wrap:wrap}.lk-prejoin .lk-button-group-container>.lk-button-group{width:100%}}.lk-prejoin .lk-username-container{display:flex;flex-direction:column;gap:1rem;max-width:100%;width:100%}.lk-prejoin .lk-join-button{--lk-control-fg:var(--lk-accent-fg);--lk-control-bg:var(--lk-accent-bg);--lk-control-hover-bg:var(--lk-accent2);--lk-control-active-bg:var(--lk-accent3);--lk-control-active-hover-bg:var(--lk-accent4);background-color:var(--lk-control-bg)}.lk-prejoin .lk-join-button:hover{background-color:var(--lk-control-hover-bg)}.lk-focus-layout-wrapper,.lk-grid-layout-wrapper{display:flex;height:calc(100% - var(--lk-control-bar-height));justify-content:center;position:relative;width:100%}.lk-grid-layout-wrapper{align-items:center;flex-direction:column}.lk-focus-layout-wrapper{align-items:stretch}.lk-video-conference{align-items:stretch;display:flex;height:100%;position:relative}.lk-video-conference-inner{align-items:stretch;display:flex;flex-direction:column;width:100%}.lk-settings-menu-modal{align-items:center;background:var(--lk-bg);background-color:var(--lk-bg);border:1px solid var(--lk-border-color);border-radius:var(--lk-border-radius);box-shadow:var(--lk-box-shadow);display:flex;flex-direction:column;gap:.5rem;left:50%;max-height:100%;max-width:100%;min-height:50vh;min-width:50vw;overflow-y:auto;padding:.75rem 1.25rem;position:fixed;top:50%;transform:translate(-50%,-50%)}.mr-layout-container{background-color:var(--surface-muted);display:grid;grid-template-areas:"header  header" "sidebar stage" "sidebar controls";grid-template-columns:280px 1fr;grid-template-rows:60px 1fr 80px;height:100vh;overflow:hidden;width:100vw}.mr-layout-header{align-items:center;background:var(--surface);border-bottom:1px solid var(--surface-border);display:flex;grid-area:header;padding:0 var(--space-4);z-index:20}.mr-layout-sidebar{background:var(--surface-hover);border-right:1px solid var(--surface-border);display:flex;flex-direction:column;gap:var(--space-2);grid-area:sidebar;overflow-y:auto;padding:var(--space-2);z-index:10}.mr-layout-stage{background:#000;grid-area:stage;overflow:hidden;position:relative}.mr-layout-controls,.mr-layout-stage{align-items:center;display:flex;justify-content:center}.mr-layout-controls{background:var(--surface);border-top:1px solid var(--surface-border);grid-area:controls;padding:0 var(--space-4);z-index:20}@media (max-width:768px){.mr-layout-container{grid-template-areas:"header" "stage" "controls";grid-template-columns:1fr;grid-template-rows:60px 1fr 80px}.mr-layout-sidebar{display:none}}.mr-sidebar-container{background-color:var(--surface-hover);display:flex;flex-direction:column;gap:16px;height:100%;width:100%}.mr-sidebar-label{color:var(--text-muted);font-size:.75rem;font-weight:700;letter-spacing:.5px;margin:0 0 8px 4px;text-transform:uppercase}.mr-instructor-section{flex-shrink:0;padding:0 8px}.mr-instructor-tile{aspect-ratio:4/3;background:#000;border:2px solid var(--primary-blue);border-radius:12px;box-shadow:0 4px 12px #00000026;overflow:hidden;position:relative;width:100%}.mr-instructor-tile.speaking{border-color:var(--success)}.mr-tile-avatar-img,.mr-tile-content{height:100%;width:100%}.mr-tile-avatar-img{display:block;object-fit:cover}.mr-tile-empty{align-items:center;background:var(--surface-muted);display:flex;flex-direction:column;height:100%;justify-content:center;width:100%}.mr-tile-overlay{align-items:flex-end;background:linear-gradient(0deg,#000c 0,#0000);bottom:0;display:flex;justify-content:space-between;left:0;padding:8px 12px;position:absolute;right:0}.mr-participant-name{color:#fff;font-weight:600;text-shadow:0 1px 2px #000c}.status-badge{align-items:center;color:#fffc;display:flex;font-size:.75rem}.mr-students-section{display:flex;flex:1 1;flex-direction:column;min-height:0}.mr-sidebar-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:8px;padding:0 12px}.count-badge{background:var(--surface-border);border-radius:10px;color:var(--text-secondary);font-size:10px;font-weight:600;padding:2px 8px}.mr-student-list{display:flex;flex-direction:column;gap:8px;overflow-y:auto;padding:0 8px 20px}.mr-student-row{align-items:center;background:var(--surface);border:1px solid var(--surface-border);border-radius:8px;display:flex;gap:12px;height:60px;padding:8px 12px;transition:all .2s ease}.mr-student-row:hover{background:var(--surface-hover);border-color:var(--surface-border-hover)}.mr-student-row.speaking{background:var(--surface-muted);border-color:var(--success)}.mr-student-avatar{background:var(--surface-muted);border:1px solid var(--surface-border);border-radius:50%;flex-shrink:0;height:40px;overflow:hidden;width:40px}.mr-avatar-img{display:block;height:100%;object-fit:cover;width:100%}.mr-student-info{display:flex;flex:1 1;flex-direction:column;min-width:0}.mr-student-name{color:var(--text-primary);font-size:.9rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mr-student-role{color:var(--text-muted);font-size:.75rem}.mr-student-status{align-items:center;color:var(--text-secondary);display:flex;gap:8px}.icon-off{opacity:.6}.mr-app-shell{height:100vh;overflow:hidden;position:relative;width:100vw}.mr-app-shell,.mr-error,.mr-loading{background:#f8fafc;background:var(--surface-muted,#f8fafc);display:flex;flex-direction:column}.mr-error,.mr-loading{align-items:center;color:#64748b;color:var(--text-secondary,#64748b);justify-content:center;min-height:100vh;padding:2rem;text-align:center}.mr-loading-spinner{animation:mr-spin 1s linear infinite;border:3px solid #e2e8f0;border-radius:50%;border-top-color:#3b82f6;border-top:3px solid var(--primary-blue,#3b82f6);height:40px;margin-bottom:1rem;width:40px}@keyframes mr-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.mr-error{color:#ef4444;color:var(--error,#ef4444)}.mr-overlay-question{align-items:center;animation:fadeIn .2s ease-out;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background-color:#0006;display:flex;height:100%;justify-content:center;left:0;position:absolute;top:0;width:100%;z-index:100}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.badge{align-items:center;display:inline-flex;justify-content:center;white-space:nowrap}.badge-warning{background-color:#fef3c7;color:#92400e}.badge-danger{background-color:#fee2e2;color:#dc2626}.badge-success{background-color:#dcfce7;color:#166534}.logo img{display:block;max-width:100%}
/*# sourceMappingURL=main.5ffe6cf9.css.map*/