@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap);body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f1f5f9;--bg-input:#f8fafc;--border:#e2e8f0;--border-hover:#cbd5e1;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--accent:#4f46e5;--accent-hover:#4338ca;--accent-light:#6366f1;--accent-glow:#4f46e514;--header-bg:#ffffffd9;--gradient-bg:linear-gradient(135deg,#f8fafc,#eff6ff 50%,#f1f5f9);--shadow:0 4px 6px -1px #0000000d,0 2px 4px -2px #0000000d;--card-glow:0 10px 15px -3px #0000000a,0 4px 6px -4px #0000000a;--btn-glow:0 4px 14px #4f46e526}:root.dark,html.dark{--bg-primary:#0a0a1a;--bg-secondary:#111827;--bg-card:#ffffff08;--bg-card-hover:#ffffff0f;--bg-input:#ffffff0d;--border:#ffffff14;--border-hover:#6c5ce74d;--text-primary:#e0e0ff;--text-secondary:#a0a0d0;--text-muted:#77a;--accent:#6c5ce7;--accent-hover:#7d6df3;--accent-light:#c084fc;--accent-glow:#6c5ce726;--header-bg:#0a0a1e99;--gradient-bg:linear-gradient(135deg,#0a0a1a,#1a1a3e 40%,#0d0d2b);--shadow:#0000004d;--card-glow:0 4px 20px #00000080;--btn-glow:0 2px 15px #6c5ce766}html:not(.dark){background:linear-gradient(135deg,#f8fafc,#eff6ff 50%,#f1f5f9)!important;background:var(--gradient-bg)!important}html:not(.dark),html:not(.dark) body{color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) body{background:#f8fafc!important;background:var(--bg-primary)!important}html:not(.dark) .collab-lobby-container,html:not(.dark) .collab-quiz-container,html:not(.dark) .group-detail-container,html:not(.dark) .groups-container,html:not(.dark) .history-view-container,html:not(.dark) .profile-container,html:not(.dark) .quiz-container,html:not(.dark) .search-users-container{background:linear-gradient(135deg,#f8fafc,#eff6ff 50%,#f1f5f9)!important;background:var(--gradient-bg)!important;color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .chat-footer,html:not(.dark) .chat-header,html:not(.dark) .chat-messages-container,html:not(.dark) .config-card,html:not(.dark) .empty-modules-card,html:not(.dark) .explanation-box,html:not(.dark) .group-card,html:not(.dark) .group-chat-container,html:not(.dark) .groups-action-btn,html:not(.dark) .history-card,html:not(.dark) .history-sidebar,html:not(.dark) .history-sidebar1,html:not(.dark) .invite-section,html:not(.dark) .member-item,html:not(.dark) .members-invite-section,html:not(.dark) .message-item,html:not(.dark) .modal-card,html:not(.dark) .profile-card,html:not(.dark) .profile-dropdown,html:not(.dark) .question-card,html:not(.dark) .report-section,html:not(.dark) .room-card,html:not(.dark) .room-item,html:not(.dark) .rooms-post-btn,html:not(.dark) .search-wrapper,html:not(.dark) .sidebar-widget,html:not(.dark) .stats-card,html:not(.dark) .user-card{background-color:#fff!important;background-color:var(--bg-secondary)!important;background-image:none!important;border-color:#e2e8f0!important;border-color:var(--border)!important;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -2px #0000000d!important;box-shadow:var(--shadow)!important}html:not(.dark) .group-card:hover,html:not(.dark) .groups-action-btn.active,html:not(.dark) .groups-action-btn:hover,html:not(.dark) .member-item:hover,html:not(.dark) .option-btn.selected,html:not(.dark) .option-btn:hover:not(:disabled),html:not(.dark) .room-item:hover,html:not(.dark) .shortcut-btn:hover,html:not(.dark) .topic-item:hover{background-color:#f1f5f9!important;background-color:var(--bg-card-hover)!important;border-color:#4f46e5!important;border-color:var(--accent)!important}html:not(.dark) .chat-input,html:not(.dark) .groups-input,html:not(.dark) .groups-search-input,html:not(.dark) .groups-textarea,html:not(.dark) .search-input,html:not(.dark) input,html:not(.dark) select{background-color:#f8fafc!important;background-color:var(--bg-input)!important;border-color:#e2e8f0!important;border-color:var(--border)!important;color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .chat-input:focus,html:not(.dark) .groups-input:focus,html:not(.dark) .groups-search-input:focus,html:not(.dark) .search-input:focus,html:not(.dark) input:focus,html:not(.dark) select:focus{background-color:#fff!important;background-color:var(--bg-secondary)!important;border-color:#4f46e5!important;border-color:var(--accent)!important;box-shadow:0 0 0 3px #4f46e514!important;box-shadow:0 0 0 3px var(--accent-glow)!important}html:not(.dark) .chat-message-text,html:not(.dark) .explanation-text,html:not(.dark) .explanation-title,html:not(.dark) .group-card-name,html:not(.dark) .history-title,html:not(.dark) .invite-code,html:not(.dark) .logo-text,html:not(.dark) .member-name,html:not(.dark) .modal-card h2,html:not(.dark) .msg-author,html:not(.dark) .num,html:not(.dark) .opt-text,html:not(.dark) .question-text,html:not(.dark) .room-item-topic,html:not(.dark) .shortcut-btn strong,html:not(.dark) .stat-num,html:not(.dark) h1,html:not(.dark) h2,html:not(.dark) h3,html:not(.dark) h4,html:not(.dark) h5,html:not(.dark) h6{color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .chat-message-time,html:not(.dark) .field-help,html:not(.dark) .group-card-desc,html:not(.dark) .group-card-stat,html:not(.dark) .groups-action-btn,html:not(.dark) .groups-hero p,html:not(.dark) .groups-input-group label,html:not(.dark) .lbl,html:not(.dark) .logo-container .logo-text,html:not(.dark) .member-username,html:not(.dark) .members-invite-section p,html:not(.dark) .msg-time,html:not(.dark) .room-item-meta,html:not(.dark) .room-item-meta span,html:not(.dark) .rooms-post-btn,html:not(.dark) .shortcut-btn span,html:not(.dark) .stat-name,html:not(.dark) .tab-empty p,html:not(.dark) .topic-item{color:#334155!important;color:var(--text-secondary)!important}html:not(.dark) .btn-text,html:not(.dark) .create-module-btn,html:not(.dark) .logo-icon .logo-text,html:not(.dark) .modal-btn.primary,html:not(.dark) .room-join-btn,html:not(.dark) .start-quiz-btn,html:not(.dark) .submit-button,html:not(.dark) .submit-quiz-btn,html:not(.dark) button.primary{color:#fff!important}html:not(.dark) .chat-bubble.ai,html:not(.dark) .msg.bot-msg{background-color:#f8fafc!important;background-color:var(--bg-input)!important;border:1px solid #e2e8f0!important;border:1px solid var(--border)!important;color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .chat-bubble.user,html:not(.dark) .msg.user-msg{background-color:#4f46e5!important;background-color:var(--accent)!important;color:#fff!important}html:not(.dark) .leaderboard-table th{color:#64748b!important;color:var(--text-muted)!important}html:not(.dark) .leaderboard-table td,html:not(.dark) .leaderboard-table th{border-bottom:1px solid #e2e8f0!important;border-bottom:1px solid var(--border)!important}html:not(.dark) .highlight-self{background-color:#4f46e514!important;background-color:var(--accent-glow)!important}html:not(.dark) .collab-quiz-container{background:linear-gradient(135deg,#f8fafc,#eff6ff 50%,#f1f5f9)!important;background:var(--gradient-bg)!important;color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .question-card{background:#fff!important;background:var(--bg-secondary)!important;border-color:#e2e8f0!important;border-color:var(--border)!important}html:not(.dark) .question-card,html:not(.dark) .question-text{color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .option-button{background:#f8fafc!important;background:var(--bg-input)!important;border-color:#e2e8f0!important;border-color:var(--border)!important;color:#334155!important;color:var(--text-secondary)!important}html:not(.dark) .option-button:hover:not(:disabled){background:#f1f5f9!important;background:var(--bg-card-hover)!important}html:not(.dark) .option-button.selected,html:not(.dark) .option-button:hover:not(:disabled){border-color:#4f46e5!important;border-color:var(--accent)!important;color:#4f46e5!important;color:var(--accent)!important}html:not(.dark) .option-button.selected{background:#4f46e514!important}html:not(.dark) .option-button.correct{background:#22c55e1a!important;border-color:#22c55e80!important;color:#15803d!important}html:not(.dark) .option-button.incorrect{background:#ef444414!important;border-color:#ef444466!important;color:#b91c1c!important}html:not(.dark) .collab-q-header{background:#ffffffe6!important;border-bottom-color:#e2e8f0!important;border-bottom-color:var(--border)!important}html:not(.dark) .question-number,html:not(.dark) .room-badge{background:#4f46e514!important;border-color:#4f46e533!important;color:#4f46e5!important;color:var(--accent)!important}html:not(.dark) .timer-badge{background:#38bdf814!important;border-color:#38bdf84d!important;color:#0369a1!important}html:not(.dark) .nav-key{background:#fff!important;background:var(--bg-secondary)!important;border-color:#e2e8f0!important;border-color:var(--border)!important;color:#64748b!important;color:var(--text-muted)!important}html:not(.dark) .nav-key.active{background:#4f46e51a!important;border-color:#4f46e5!important;border-color:var(--accent)!important;color:#4f46e5!important;color:var(--accent)!important}html:not(.dark) .nav-key.answered{background:#38bdf814!important;border-color:#38bdf84d!important;color:#0369a1!important}html:not(.dark) .nav-key.correct{background:#22c55e1a!important;border-color:#22c55e66!important;color:#15803d!important}html:not(.dark) .nav-key.incorrect{background:#ef444414!important;border-color:#ef44444d!important;color:#b91c1c!important}html:not(.dark) .control-btn{background:#fff!important;background:var(--bg-secondary)!important;border-color:#e2e8f0!important;border-color:var(--border)!important;color:#334155!important;color:var(--text-secondary)!important}html:not(.dark) .lb-header-row,html:not(.dark) .lb-row,html:not(.dark) .leaderboard-table{background:#fff!important;background:var(--bg-secondary)!important;color:#0f172a!important;color:var(--text-primary)!important}html:not(.dark) .participant-card{background:#fff!important;background:var(--bg-secondary)!important;border-color:#e2e8f0!important;border-color:var(--border)!important}html:not(.dark) .waiting-room 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.auth-card-modal{background:#0f172a;border-color:#1e293bcc;box-shadow:0 25px 50px -12px #00000080}.auth-left-panel{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;padding:3rem 2.5rem;position:relative;width:42%}.topographic-overlay{bottom:0;left:0;overflow:hidden;pointer-events:none;position:absolute;right:0;top:0}.topo-waves{height:130%;position:absolute;width:130%}.topo-waves.svg-1{left:-20%;top:-20%}.topo-waves.svg-2{bottom:-20%;right:-20%}.left-panel-content{display:flex;flex-direction:column;height:100%;justify-content:space-between;position:relative;z-index:2}.brand-logo-badge{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffff26;border:1px solid #ffffff40;border-radius:.75rem;box-shadow:0 4px 6px -1px #0000000d;font-size:1.5rem;font-weight:800;letter-spacing:-.025em;padding:.5rem 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