:root{--bg-dark: #2b2b2b;--glass-bg: rgba(6, 8, 12, .67);--glass-bg-light: rgba(255, 255, 255, .05);--glass-border: 1px solid rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .3);--glass-blur: blur(12px);--text-primary: #f1f5f9;--text-secondary: rgba(241, 245, 249, .7);--text-muted: rgba(241, 245, 249, .5);--title-color: #f1f5f9;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--text-accent: #3b82f6;--text-accent-glow: #60a5fa;--status-green: #22c55e;--status-yellow: #eab308;--status-red: #ef4444;--status-gray: #6c6f72;--btn-primary-bg: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);--btn-primary-text: #000000;--btn-shadow: 0 4px 12px rgba(0, 0, 0, .2);--btn-hover-transform: translateY(-2px);--input-bg: rgba(94, 94, 94, .486);--input-border: 2px solid #d4e1e2;--input-focus-border: #3b82f6;--input-text: #d4e1e2}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border-radius:var(--radius-lg);border:var(--glass-border);box-shadow:var(--glass-shadow);color:var(--text-primary)}.text-accent{color:var(--text-accent)}.text-glow{color:var(--text-accent-glow);text-shadow:0 6px 20px rgba(0,0,0,.582);font-weight:bolder}.btn-primary{background:var(--btn-primary-bg);color:var(--btn-primary-text);border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;box-shadow:var(--btn-shadow);transition:transform .2s ease,box-shadow .2s ease}.btn-primary:hover{transform:var(--btn-hover-transform);box-shadow:0 6px 20px #898b0566}input[type=number]::-webkit-inner-spin-button,input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.delete-btn{background:#ef444433;color:var(--status-red);border:1px solid var(--status-red);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:.9em;font-weight:500;transition:all .2s ease;flex-shrink:0;white-space:nowrap}.delete-btn:hover{background:#ef444466;transform:scale(1.05)}.delete-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.edit-btn{background:#fabb3333;color:var(--text-accent);border:1px solid var(--text-accent);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:.9em;font-weight:500;transition:all .2s ease;flex-shrink:0;white-space:nowrap}.edit-btn:hover{background:#fabb3366;transform:scale(1.05)}.edit-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:var(--text-secondary);border:1px solid rgba(255,255,255,.2);padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:500;transition:all .2s ease}.btn-secondary:hover{background:#ffffff1a}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-success{background:var(--status-green);color:#fff;border:none;padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600;transition:all .2s ease}.btn-success:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 4px 12px #22c55e66}.btn-success:disabled{opacity:.5;cursor:not-allowed;transform:none}.sidebar-toggle-inside{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;transition:all .2s ease;flex-shrink:0}.sidebar-toggle-inside:hover{transform:translateY(-2px);background:#cacaca83;border-radius:20%}.sidebar-toggle-inside svg{width:33px;height:33px;color:var(--text-accent)}.sidebar-overlay{display:none}@media (max-width: 768px){.sidebar-overlay{display:block;position:fixed;top:0;left:0;right:0;bottom:0;background:#0006;z-index:90;animation:fadeIn .2s ease}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.sidebar{position:fixed;left:0;top:0;bottom:0;width:250px;background:#fff;display:flex;flex-direction:column;z-index:100;box-shadow:2px 0 12px #00000014;border-right:1px solid #e5e7eb;transition:transform .3s ease}.sidebar.closed{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-logo{padding:1rem 2rem;display:flex;align-items:center;gap:1rem;border-bottom:1px solid #e5e7eb;box-sizing:border-box;height:80px}.sidebar-logo img,.sidebar-logo-img{max-width:120px;max-height:60px;width:auto;height:auto;object-fit:contain}.sidebar-nav{flex:1;display:flex;flex-direction:column;padding:1rem 0;overflow-y:auto}.sidebar-item{display:flex;align-items:center;gap:.75rem;padding:.5rem .75rem;margin:2px 12px;color:#52525b;text-decoration:none;font-size:.9rem;font-weight:500;transition:all .2s ease;border-radius:6px;border:none}.sidebar-item svg{width:18px;height:18px;flex-shrink:0;color:#71717a}.sidebar-item:hover{background-color:#f4f4f5;color:#18181b}.sidebar-item:hover svg{color:#27272a}.sidebar-item.active{background-color:#dbeafe;color:#1e40af;font-weight:600;border:none}.sidebar-item.active svg{color:#2563eb}.sidebar-item.sub-item{margin-left:24px;padding-left:1rem;font-size:.9rem;position:relative}.sidebar-item.sub-item:before{content:"";position:absolute;left:-8px;top:0;bottom:0;width:1px;background-color:#e4e4e7}.sidebar-section-toggle{display:flex;align-items:center;gap:.75rem;width:auto;margin:2px 12px;padding:.5rem .75rem;background:transparent;border:none;border-radius:6px;color:#52525b;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s ease;text-align:left}.sidebar-section-toggle:hover{background-color:#f4f4f5;color:#18181b}.sidebar-section-toggle svg{width:18px;height:18px;flex-shrink:0;color:#71717a}.sidebar-section-toggle:hover svg{color:#27272a}.sidebar-section-toggle .chevron{margin-left:auto;width:14px;height:14px;transition:transform .2s ease;color:#a1a1aa}.sidebar-section-toggle.open .chevron{transform:rotate(180deg)}.sidebar-section-items{animation:slideDown .2s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.sidebar-footer{padding:1rem;border-top:1px solid #e5e7eb}.sidebar-user{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;margin-bottom:.5rem;color:#6b7280;font-size:.85rem}.sidebar-user svg{width:18px;height:18px}.sidebar-logout,.sidebar-login{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1rem;background:transparent;border:1px solid #e5e7eb;border-radius:8px;color:#4b5563;font-size:.9rem;font-weight:500;cursor:pointer;text-decoration:none;transition:all .2s ease}.sidebar-logout:hover{background:#fef2f2;border-color:#fecaca;color:#dc2626}.sidebar-login:hover{background:#fefce8;border-color:#fde047;color:#b8860b}.sidebar-logout svg,.sidebar-login svg{width:18px;height:18px}@media (max-width: 768px){.sidebar-toggle-inside{width:32px;height:32px}.sidebar-toggle-inside svg{width:18px;height:18px}}.app-layout{display:flex;height:100vh;overflow:hidden;background:#fff}.main-content{flex:1;margin-left:250px;display:flex;flex-direction:column;height:100vh;overflow:hidden;transition:margin-left .3s ease}.main-content.sidebar-closed{margin-left:0}.main-header{display:flex;align-items:center;gap:1rem;padding:1rem 2rem;background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:50;height:80px;box-sizing:border-box}.header-toggle-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;transition:all .2s ease;flex-shrink:0}.header-toggle-btn:hover{transform:translateY(-2px);background:#cacaca83;border-radius:20%}.header-toggle-btn svg{width:33px;height:33px;color:var(--text-accent)}.header-brand{display:flex;flex-direction:column}.header-title{font-size:1.5rem;font-weight:700;color:var(--text-accent);margin:0;letter-spacing:-.02em}.header-subtitle{font-size:.85rem;color:#6b7280;margin-top:2px}.header-actions{margin-left:auto;display:flex;align-items:center;gap:1rem}.header-login-btn{padding:.5rem 1.25rem;background:var(--text-accent);color:#000;text-decoration:none;border-radius:8px;font-weight:600;font-size:.9rem;transition:all .2s ease}.header-login-btn:hover{background:#e6c038;transform:translateY(-1px)}.page-content{flex:1;width:100%;padding:0;overflow-x:hidden}@media (max-width: 768px){.main-content{margin-left:0}.main-header{padding:.75rem 1rem}.header-title{font-size:1.25rem}.header-subtitle{font-size:.75rem}}.loading-spinner-container{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:40px}.loading-spinner{border:3px solid rgba(255,255,255,.1);border-top:3px solid var(--accent-primary, #3b82f6);border-radius:50%;animation:spin .8s linear infinite}.loading-spinner-container.sm .loading-spinner{width:24px;height:24px}.loading-spinner-container.md .loading-spinner{width:40px;height:40px}.loading-spinner-container.lg .loading-spinner{width:60px;height:60px}.loading-spinner-container .loading-text{color:var(--text-secondary, #94a3b8);font-size:.95rem;margin:0}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.route-loader{position:fixed;top:0;right:0;bottom:0;left:0;background:#fff;display:flex;justify-content:center;align-items:center;z-index:9999}.content-container{max-width:1200px;margin:0 auto;padding:0 20px}.content-header{display:flex;justify-content:space-between;align-items:center;margin:20px 0;padding-bottom:10px}.content-header h2{color:var(--text-primary);margin:0}.dashboard{flex:1;width:100%;height:100%;padding:25px;background:#f5f7fb;box-sizing:border-box}.dashboard-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:1rem;color:#6b7280}.loading-spinner{width:40px;height:40px;border:3px solid #e5e7eb;border-top-color:var(--text-accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.dash-card{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:0 1px 3px #0000000d;border:1px solid #e5e7eb;transition:all .2s ease;text-decoration:none;color:inherit;position:relative}.dash-card:hover{box-shadow:0 8px 24px #00000014;transform:translateY(-2px)}.dash-card h3{margin:0 0 1rem;font-size:1rem;font-weight:600;color:#374151}@media (max-width: 768px){.dashboard{padding:1rem}}body.dark{--dark-bg-main: #121214;--dark-bg-card: #1c1c1f;--dark-bg-hover: #2e2e33;--dark-border: #2e2e33;--dark-text-main: #f4f4f5;--dark-text-muted: #a1a1aa;--dark-accent: #3b82f6;--dark-modal-overlay: rgba(0, 0, 0, .75)}body.dark{background-color:var(--dark-bg-main);color:var(--dark-text-main)}body.dark h1,body.dark h2,body.dark h3,body.dark h4,body.dark h5,body.dark h6,body.dark p,body.dark span,body.dark label,body.dark li{color:var(--dark-text-main)}body.dark .text-muted,body.dark small,body.dark .description{color:var(--dark-text-muted)}body.dark .sidebar,body.dark .menu{background-color:#0c0c0e;border-right:1px solid var(--dark-border)}body.dark .sidebar a,body.dark .menu a{color:var(--dark-text-muted)}body.dark .sidebar a:hover,body.dark .menu a:hover{color:#fff;background-color:var(--dark-bg-hover)}body.dark .sidebar a.active,body.dark .menu a.active{background-color:#3b82f626;color:#60a5fa;border-right:2px solid #60a5fa}body.dark header,body.dark .topbar{background-color:#09090bcc;border-bottom:1px solid var(--dark-border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}body.dark .config-container,body.dark .main-content,body.dark .content,body.dark .dashboard{background-color:var(--dark-bg-main)}body.dark .card,body.dark .config-card,body.dark .dash-card,body.dark .summary-card,body.dark .bloque,body.dark .study-box,body.dark .agenda-box,body.dark .quick-card,body.dark .action-card,body.dark .materia-card,body.dark .materia-column,body.dark .apunte-mini-card,body.dark .login-card{background:var(--dark-bg-card)!important;color:var(--dark-text-main);border:1px solid var(--dark-border);box-shadow:0 4px 6px -1px #0000004d,0 2px 4px -1px #0000001a}body.dark .materia-card.inactiva{background:#000!important;opacity:.6;border-color:#3f3f46!important}body.dark .card p,body.dark .config-card p,body.dark .summary-card p,body.dark .study-info{color:var(--dark-text-muted)}body.dark button,body.dark .config-btn{background-color:var(--dark-bg-hover);color:var(--dark-text-main);border:1px solid var(--dark-border);transition:all .2s}body.dark button:hover,body.dark .config-btn:hover{background-color:#3f3f46;border-color:#52525b}body.dark .btn-primary,body.dark button.primary,body.dark .config-btn.primary,body.dark .login-button{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;border:none}body.dark input,body.dark textarea,body.dark select,body.dark .agenda-input,body.dark .modal-input,body.dark .input-line,body.dark .filtro-select{background-color:#1a1a1c!important;color:#fff!important;border:1px solid var(--dark-border)}body.dark input:focus,body.dark textarea:focus,body.dark select:focus{border-color:var(--dark-accent);outline:none;box-shadow:0 0 0 2px #3b82f633}body.dark input::placeholder,body.dark textarea::placeholder{color:#52525b}body.dark .input-line{border-bottom:2px solid var(--dark-border)}body.dark .modal,body.dark .modal-card,body.dark .modal-content,body.dark .conf-modal-card,body.dark .cal-modal-card{background-color:#18181b!important;color:var(--dark-text-main)!important;border:1px solid #27272a;box-shadow:0 20px 25px -5px #00000080}body.dark .modal-overlay,body.dark .conf-modal-overlay,body.dark .cal-modal-overlay{background-color:#000000d9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}body.dark .modal-header,body.dark .modal-actions,body.dark .view-header{border-color:var(--dark-border)}body.dark .materia-badge{background:var(--dark-bg-hover);color:#fff;border:1px solid var(--dark-border)}body.dark .materia-tag{background:var(--dark-bg-hover)}body.dark .historial-table{background-color:var(--dark-bg-card);border:1px solid var(--dark-border);color:var(--dark-text-main)}body.dark .historial-table thead tr{background:var(--dark-bg-hover)}body.dark .historial-table th{color:var(--dark-text-main);border-bottom:1px solid var(--dark-border)}body.dark .historial-table td{border-top:1px solid var(--dark-border);color:var(--dark-text-muted)}body.dark .historial-table tbody tr:hover{background-color:var(--dark-bg-hover)}body.dark .fc-theme-standard td,body.dark .fc-theme-standard th,body.dark .fc-scrollgrid{border-color:var(--dark-border)!important}body.dark .fc-daygrid-day-number,body.dark .fc-col-header-cell-cushion{color:var(--dark-text-main)!important;text-decoration:none}body.dark .fc-col-header-cell{background-color:var(--dark-bg-card)!important}body.dark .fc-button-primary{background-color:var(--dark-bg-hover);border-color:var(--dark-border);color:var(--dark-text-main)}body.dark .fc-button-active{background-color:var(--dark-accent)!important;color:#fff!important}body.dark .fc-day-today{background:#3b82f61a!important}body.dark .login-container{background:linear-gradient(135deg,#0f172a,#1e1b4b)}body.dark .login-logo{color:#60a5fa}body.dark ::-webkit-scrollbar{width:10px}body.dark ::-webkit-scrollbar-track{background:var(--dark-bg-main)}body.dark ::-webkit-scrollbar-thumb{background:#3f3f46;border-radius:5px;border:2px solid var(--dark-bg-main)}body.dark ::-webkit-scrollbar-thumb:hover{background:#52525b}body.dark .x:hover{color:#ef4444}body.dark .menu-toggle svg{stroke:var(--dark-text-main)}body.dark .sidebar-panel,body.dark .chat-panel-container{background:var(--dark-bg-card);border-color:var(--dark-border)}body.dark .subject-btn{background:var(--dark-bg-main);border-color:var(--dark-border);color:var(--dark-text-main)}body.dark .subject-btn:hover{background:var(--dark-bg-hover);border-color:#52525b}body.dark .subject-btn.active{background:#3b82f626;border-color:var(--dark-accent);color:#60a5fa}body.dark .subject-dot{box-shadow:0 0 0 1px var(--dark-border);border-color:var(--dark-bg-main)}body.dark .chat-selected-header{background:var(--dark-bg-card);border-bottom:1px solid var(--dark-border)}body.dark .chat-selected-header h2{color:var(--dark-text-main)}body.dark .highlight-subject{color:#60a5fa}body.dark .empty-chat-state{color:var(--dark-text-muted)}body.dark .agenda-item{background:var(--dark-bg-hover);color:var(--dark-text-main);border:1px solid var(--dark-border)}body.dark .agenda-delete{background:#991b1b;color:#fecaca}body.dark .agenda-delete:hover{background:#ef4444;color:#fff}body.dark .agenda-empty{color:var(--dark-text-muted)}