@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary: #0b5cff;--primary-hover: #004de6;--primary-light: #e6efff;--bg-color: #f7f9fa;--surface: #ffffff;--text-main: #1a1a1a;--text-muted: #747487;--border: #e0e0e0;--error: #e02828;--error-bg: #fce8e8;--success: #00c271;--success-bg: #e6f9f0;--card-shadow: 0 4px 12px rgba(0, 0, 0, .08);--card-shadow-hover: 0 8px 24px rgba(0, 0, 0, .12)}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background:var(--bg-color);color:var(--text-main);min-height:100vh;overflow-x:hidden;line-height:1.5}h1,h2,h3,h4,h5,h6{font-weight:600;color:var(--text-main);margin-bottom:.5em;letter-spacing:-.01em}p{color:var(--text-muted)}.material-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--card-shadow);transition:box-shadow .3s ease,transform .3s ease}.material-card:hover{box-shadow:var(--card-shadow-hover);transform:translateY(-2px)}.btn-primary{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:8px;font-weight:500;font-size:1rem;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 12px #0b5cff33}.btn-secondary{background:var(--surface);color:var(--text-main);border:1px solid var(--border);padding:12px 24px;border-radius:8px;font-weight:500;font-size:1rem;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}.btn-secondary:hover{background:var(--bg-color);border-color:var(--text-muted)}.input-group{margin-bottom:20px;display:flex;flex-direction:column;gap:6px;position:relative}.input-label{font-size:.875rem;font-weight:500;color:var(--text-main)}.input-field{background:var(--surface);border:1px solid var(--border);color:var(--text-main);padding:12px 16px 12px 40px;border-radius:8px;width:100%;font-size:1rem;outline:none;transition:all .2s ease}.input-field:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.input-icon{position:absolute;left:12px;top:36px;color:var(--text-muted);width:20px;height:20px}.error-message{background:var(--error-bg);color:var(--error);padding:12px;border-radius:8px;font-size:.875rem;text-align:center;margin-bottom:16px;border:1px solid rgba(224,40,40,.2)}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{width:100%;max-width:440px;padding:40px;background:var(--surface);border-radius:16px;box-shadow:0 10px 40px #0000001a;border-top:4px solid var(--primary);display:flex;flex-direction:column}.login-icon-wrapper{display:flex;justify-content:center;margin-bottom:24px}.login-icon{background:var(--primary-light);color:var(--primary);padding:16px;border-radius:50%;border:2px solid var(--primary)}.login-title{font-size:1.75rem;text-align:center;margin-bottom:8px}.login-subtitle{text-align:center;margin-bottom:32px}.dashboard-container{padding:40px 20px;max-width:1200px;margin:0 auto}.dashboard-header{display:flex;flex-direction:column;gap:20px;margin-bottom:40px}@media(min-width:768px){.dashboard-header{flex-direction:row;justify-content:space-between;align-items:center}}.dashboard-actions{display:flex;gap:16px}.icon-btn{background:var(--surface);border:1px solid var(--border);border-radius:8px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);cursor:pointer;transition:all .2s}.icon-btn:hover{background:var(--bg-color);color:var(--primary);border-color:var(--primary)}.stats-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-bottom:48px}@media(min-width:768px){.stats-grid{grid-template-columns:repeat(3,1fr)}}.stat-card{padding:24px;display:flex;align-items:center;gap:20px}.stat-icon-wrapper{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center}.stat-icon-primary{background:var(--primary-light);color:var(--primary)}.stat-icon-secondary{background:#fee2e2;color:#dc2626}.stat-icon-accent{background:#fef08a;color:#ca8a04}.stat-info .stat-label{font-size:.875rem;font-weight:500;color:var(--text-muted);margin-bottom:4px}.stat-info .stat-value{font-size:1.75rem;font-weight:700;color:var(--text-main);margin:0}.rooms-grid{display:grid;grid-template-columns:1fr;gap:24px}@media(min-width:768px){.rooms-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.rooms-grid{grid-template-columns:repeat(3,1fr)}}.room-card{display:flex;flex-direction:column;overflow:hidden;position:relative}.room-card-decor{height:4px;background:var(--primary);width:100%}.room-card-content{padding:24px;flex:1;display:flex;flex-direction:column}.room-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.room-title{font-size:1.25rem;font-weight:600;line-height:1.4;margin:0;color:var(--text-main)}.room-icon{background:var(--primary-light);color:var(--primary);padding:8px;border-radius:8px}.room-details{display:flex;flex-direction:column;gap:12px;margin-bottom:32px;flex:1}.room-detail-item{display:flex;align-items:center;gap:12px;font-size:.875rem;color:var(--text-muted)}.room-detail-icon{color:var(--primary)}.room-actions{display:flex;flex-direction:column;gap:12px}.modal-overlay{position:fixed;inset:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal-content{background:var(--surface);border-radius:16px;width:100%;max-width:600px;padding:32px;box-shadow:0 20px 60px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.modal-title{font-size:1.5rem;font-weight:700;margin:0}.modal-close{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:8px;border-radius:50%;transition:all .2s}.modal-close:hover{background:var(--bg-color);color:var(--text-main)}.form-grid{display:grid;grid-template-columns:1fr;gap:20px}@media(min-width:768px){.form-grid{grid-template-columns:1fr 1fr}}.modal-actions{display:flex;gap:16px;margin-top:32px}.modal-actions>*{flex:1}.settings-grid{display:grid;grid-template-columns:1fr;gap:32px}@media(min-width:768px){.settings-grid{grid-template-columns:1fr 1fr}}.settings-card{padding:32px;position:relative;overflow:hidden}.settings-watermark{position:absolute;top:20px;right:20px;opacity:.05;width:100px;height:100px;color:var(--primary)}.settings-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.settings-icon-bg{background:var(--primary-light);color:var(--primary);padding:12px;border-radius:12px}textarea.input-field{resize:vertical;min-height:120px;padding-left:16px}input[type=datetime-local].input-field{padding-left:16px}.toggle-switch-wrapper{position:relative;display:inline-block;width:48px;height:24px}.toggle-switch-input{opacity:0;width:0;height:0}.toggle-switch-slider{position:absolute;cursor:pointer;inset:0;background-color:var(--border);transition:.4s;border-radius:24px}.toggle-switch-slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.4s;border-radius:50%}.toggle-switch-input:checked+.toggle-switch-slider{background-color:var(--primary)}.toggle-switch-input:checked+.toggle-switch-slider:before{transform:translate(24px)}.file-upload-container{display:flex;flex-direction:column;gap:12px;width:100%}.file-upload-area{border:2px dashed var(--border);border-radius:12px;padding:24px;text-align:center;cursor:pointer;transition:all .2s ease;background:var(--bg-color);display:flex;flex-direction:column;align-items:center;gap:8px}.file-upload-area:hover{border-color:var(--primary);background:var(--primary-light)}.image-preview-circle{width:120px;height:120px;border-radius:50%;border:4px solid var(--surface);box-shadow:0 4px 12px #0000001a;object-fit:cover}.image-preview-placeholder{width:120px;height:120px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:12px}.toggle-card{display:flex;align-items:center;justify-content:space-between;padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:12px;cursor:pointer;transition:all .2s 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infinite}.meeting-container{height:100dvh;width:100vw;background:#000;overflow:hidden;position:fixed;top:0;left:0;color:#fff;font-family:Inter,sans-serif;display:flex;flex-direction:column}@media(min-width:1024px){.meeting-container{flex-direction:row}}.meeting-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:#000;position:relative;height:100%}.meeting-video-wrapper{flex:1;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:#000;width:100%}.meeting-header-overlay{position:absolute;top:0;left:0;right:0;padding:16px;z-index:50;display:flex;justify-content:space-between;align-items:center;background:linear-gradient(to bottom,rgba(0,0,0,.8) 0%,transparent 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rgba(255,255,255,.2);padding-left:8px}.full-overlay{position:absolute;inset:0;z-index:100;background:#000;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center}.glass-card{padding:32px;border-radius:24px;background:#1e1e1ecc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);box-shadow:0 20px 50px #00000080;max-width:400px;width:100%}.icon-circle{width:64px;height:64px;border-radius:20px;background:#0b5cff1a;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;border:1px solid rgba(11,92,255,.2)}.join-btn{width:100%;height:56px;background:var(--primary);color:#fff;border-radius:16px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:12px;transition:all .2s;border:none;cursor:pointer;margin-top:24px}.join-btn:active{transform:scale(.95)}.meeting-footer{display:grid!important;grid-template-columns:1fr auto 1fr!important;align-items:center!important;gap:12px;padding:16px 24px;background:#0f0f0ffa;backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border-top:1px solid rgba(255,255,255,.1);z-index:60;height:80px}.controls-group{display:flex!important;flex-direction:row!important;align-items:center!important;gap:12px!important}.footer-left{justify-content:flex-start}.footer-center{justify-content:center}.footer-right{display:flex;justify-content:flex-end}.control-btn{width:48px;height:48px;border-radius:14px;background:#ffffff14;border:1px solid rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}.control-btn:hover{background:#ffffff26;transform:translateY(-2px)}.control-btn.active{background:var(--primary);border-color:var(--primary);box-shadow:0 8px 16px #0b5cff4d}.exit-btn{background:#ff3b30!important;border-color:#ff3b30!important;color:#fff!important;padding:0 20px;height:48px;border-radius:14px;display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;border:none;cursor:pointer;box-shadow:0 8px 16px #ff3b3033;transition:all .2s}.exit-btn:hover{transform:translateY(-2px);background:#ff453a!important}.hide-mobile{display:none!important}@media(min-width:768px){.hide-mobile{display:flex!important}}.meeting-sidebar{width:0;overflow:hidden;background:#111;display:flex;flex-direction:column;z-index:70;transition:width .3s cubic-bezier(.4,0,.2,1);border-left:none}.meeting-sidebar.open{width:360px;border-left:1px solid rgba(255,255,255,.1)}.sidebar-header{height:60px;display:flex;align-items:center;padding:0 8px;border-bottom:1px solid rgba(255,255,255,.1);gap:4px}.sidebar-tab{flex:1;height:40px;border-radius:8px;font-size:13px;font-weight:600;color:#ffffff80;display:flex;align-items:center;justify-content:center;transition:all .2s;background:transparent;border:none;cursor:pointer}.sidebar-tab.active{background:#ffffff1a;color:#fff}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}.message-item{display:flex;flex-direction:column;max-width:85%}.message-item.me{align-self:flex-end}.message-bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.4}.message-bubble.other{background:#2a2a2a;color:#eee;border-top-left-radius:4px}.message-bubble.me{background:var(--primary);color:#fff;border-top-right-radius:4px}.chat-input-container{padding:16px;border-top:1px solid rgba(255,255,255,.1);background:#181818}.chat-input-wrapper{position:relative;display:flex;align-items:center}.sidebar-input{width:100%;background:#252525;border:1px solid #333;border-radius:12px;padding:12px 48px 12px 14px;color:#fff;outline:none;font-size:14px}.sidebar-send-btn{position:absolute;right:6px;width:36px;height:36px;background:var(--primary);border-radius:8px;border:none;display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer}@media(max-width:1024px){.meeting-sidebar{position:fixed;top:0;right:0;bottom:0;width:100%!important;max-width:100%;transform:translate(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:200}}.meeting-sidebar.open{transform:translate(0)}.sidebar-tab{flex:1;padding:12px;background:none;border:none;border-radius:8px;color:var(--text-muted);font-weight:600;font-size:.85rem;cursor:pointer;transition:all .2s}.sidebar-tab.active{background:#ffffff0d;color:#fff}.glass-panel{background:#ffffff0d;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.animate-fade-in{animation:fadeIn .3s ease-out}.animate-slide-up{animation:slideUp .4s cubic-bezier(.16,1,.3,1)}.message-bubble.teacher{background:#0b5cff1a;color:var(--primary);border:1px solid rgba(11,92,255,.2);border-top-left-radius:4px}.people-list{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.people-list-item{display:flex;align-items:center;justify-content:space-between;padding:12px;background:#ffffff0d;border-radius:12px;border:1px solid rgba(255,255,255,.05)}.people-info{display:flex;align-items:center;gap:12px}.people-avatar{width:32px;height:32px;border-radius:8px;background:#333;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:12px;color:#ccc}.people-name{font-size:14px;font-weight:600;color:#eee;display:flex;align-items:center;gap:8px}.people-badge{font-size:9px;background:var(--primary);padding:2px 6px;border-radius:4px;color:#fff;text-transform:uppercase;font-weight:900}.hide-mobile{display:none}@media(min-width:768px){.hide-mobile{display:flex}}.hide-lg{display:flex}@media(min-width:1024px){.hide-lg{display:none}}.meeting-video-player{width:100%;height:100%;background:#000;position:relative}