:root{--bg: #0a0a0f;--bg-elevated: #14151a;--bg-input: rgba(255, 255, 255, .04);--text: #f2f2f2;--text-muted: #aaa;--text-subtle: #777;--border: #2a2d34;--accent: #00c2ff;--accent-contrast: #001018;--danger: #ff6b6b;--success: #3ddc84;--overlay: rgba(0, 0, 0, .7);--shadow: 0 20px 50px rgba(0, 0, 0, .45)}:root[data-theme=light]{--bg: #f6f7fb;--bg-elevated: #ffffff;--bg-input: rgba(0, 0, 0, .035);--text: #14151a;--text-muted: #565b66;--text-subtle: #7a7f8a;--border: #dfe2ea;--accent: #0090c2;--accent-contrast: #ffffff;--danger: #c0392b;--success: #1f9d55;--overlay: rgba(20, 21, 26, .55);--shadow: 0 20px 50px rgba(20, 21, 26, .12)}*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:var(--bg);color:var(--text);transition:background .2s ease,color .2s ease}a{color:var(--accent)}.navbar{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-bottom:1px solid var(--border)}.navbar .logo{color:inherit;text-decoration:none;font-weight:700;font-size:1.2rem}.navbar .highlight{color:var(--accent)}.nav-items{display:flex;align-items:center;gap:16px}.nav-items a{color:inherit;text-decoration:none}.nav-user{color:var(--text-muted);font-size:.9rem}.logout-btn,.theme-toggle-btn{padding:8px 16px;border-radius:20px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer}.theme-toggle-btn{padding:8px 12px;font-size:1rem;line-height:1}.admin-nav-link{color:var(--accent);font-weight:600}.page{max-width:1200px;margin:0 auto;padding:40px 20px}.page-header{margin-bottom:32px}.page-header-row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}.create-section-btn{padding:10px 18px;border-radius:20px;border:none;background:var(--accent);color:var(--accent-contrast);font-weight:600;cursor:pointer;white-space:nowrap}.empty-catalog{text-align:center;padding:40px 20px;border:1px dashed var(--border);border-radius:12px}.empty-catalog .create-section-btn{margin-top:12px}.empty-state{color:var(--text-subtle)}.back-link{display:inline-block;margin-bottom:16px;color:var(--accent);text-decoration:none}.form-error{color:var(--danger)}.hero{display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px;padding:64px 20px 56px;border-radius:24px;margin-bottom:40px;background:radial-gradient(circle at 20% 20%,rgba(0,194,255,.16),transparent 55%),radial-gradient(circle at 80% 0%,rgba(61,220,132,.12),transparent 50%),var(--bg-elevated);border:1px solid var(--border)}.hero-eyebrow{text-transform:uppercase;letter-spacing:2px;font-size:.75rem;color:var(--accent);font-weight:700}.hero h1{font-size:clamp(1.8rem,4vw,2.8rem);margin:0;max-width:720px}.hero p{color:var(--text-muted);max-width:560px;font-size:1.05rem;margin:0}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:8px}.hero-google-btn{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;border-radius:999px;border:none;background:var(--accent);color:var(--accent-contrast);font-weight:700;cursor:pointer;font-size:1rem}.hero-features{display:flex;gap:28px;flex-wrap:wrap;justify-content:center;margin-top:20px;color:var(--text-subtle);font-size:.85rem}.hero-features span{display:flex;align-items:center;gap:6px}.search-bar-wrap{position:relative;margin-bottom:32px}.search-bar{display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:999px;border:1px solid var(--border);background:var(--bg-elevated)}.search-bar input{flex:1;border:none;background:transparent;color:inherit;font-size:1rem;outline:none}.search-results{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);max-height:420px;overflow-y:auto;z-index:50;padding:8px}.search-group-label{font-size:.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--text-subtle);padding:10px 10px 4px}.search-result-row{display:flex;flex-direction:column;padding:10px;border-radius:8px;text-decoration:none;color:inherit;cursor:pointer;background:none;border:none;text-align:left;width:100%;font:inherit}.search-result-row:hover{background:var(--bg-input)}.search-result-title{font-weight:600}.search-result-meta{font-size:.8rem;color:var(--text-subtle)}.search-empty{padding:16px;color:var(--text-subtle);text-align:center}.category-row{margin-bottom:40px}.category-row-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}.category-row-header h2{margin:0;font-size:1.3rem}.category-row-hint{font-size:.8rem;color:var(--text-subtle)}.section-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.section-card{position:relative;display:block;border:1px solid var(--border);border-radius:14px;text-decoration:none;color:inherit;background:var(--bg-elevated);overflow:hidden;transition:transform .15s ease,border-color .15s ease}.section-card:hover{border-color:var(--accent);transform:translateY(-2px)}.section-card.is-dragging{opacity:.5}.section-card-thumb{width:100%;aspect-ratio:16 / 9;background:linear-gradient(135deg,#00c2ff40,#3ddc8433);display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--accent);overflow:hidden}.section-card-thumb img{width:100%;height:100%;object-fit:cover}.section-card-body{padding:16px}.section-card-badges{position:absolute;top:10px;left:10px;display:flex;gap:6px}.badge{font-size:.7rem;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--bg-elevated);border:1px solid var(--border)}.badge-pinned{background:var(--accent);color:var(--accent-contrast);border:none}.badge-paid{background:#ffb020;color:#241a00;border:none}.section-card-owner-actions{position:absolute;top:10px;right:10px;display:flex;gap:6px;z-index:2}.section-card-owner-actions button{width:28px;height:28px;border-radius:8px;border:1px solid var(--border);background:var(--bg-elevated);color:inherit;cursor:pointer;font-size:.85rem;line-height:1}.section-card-owner-actions button.is-active{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent)}.section-drag-handle{cursor:grab}.section-description{color:var(--text-muted);font-size:.9rem;margin:6px 0}.section-meta{color:var(--text-subtle);font-size:.8rem}.section-price-tag{display:inline-block;margin-top:8px;font-weight:700;color:var(--accent)}.section-detail-body{display:flex;gap:32px;margin-top:24px;flex-wrap:wrap}.roadmap-list{flex:2;min-width:300px}.roadmap-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--border);border-radius:10px;margin-bottom:10px;background:var(--bg-elevated)}.roadmap-item:hover{border-color:var(--accent)}.roadmap-item-link{display:flex;align-items:center;gap:12px;flex:1;min-width:0;color:inherit;text-decoration:none}.roadmap-item-actions{display:flex;gap:8px;flex-shrink:0}.roadmap-item-actions button{padding:6px 12px;font-size:.8rem;border-radius:6px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer}.roadmap-item-editing{flex-direction:column;align-items:stretch;gap:8px}.roadmap-item-editing input{padding:8px 12px;border-radius:6px;border:1px solid var(--border);background:var(--bg-input);color:inherit}.roadmap-thumb{width:64px;height:36px;border-radius:6px;overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:var(--bg-input);font-size:1.1rem}.roadmap-thumb img{width:100%;height:100%;object-fit:cover}.roadmap-playlist-badge{margin-left:8px;font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--accent);color:var(--accent-contrast)}.roadmap-index{color:var(--text-subtle);font-weight:700;width:24px}.roadmap-title{flex:1}.roadmap-source{color:var(--text-subtle);font-size:.8rem}.resource-list{list-style:none;padding:0;margin:0 0 16px}.resource-list li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--border)}.resource-list a{color:var(--accent)}.resource-item-main{display:flex;align-items:center;gap:10px;min-width:0}.resource-item-actions{display:flex;gap:6px;flex-shrink:0}.resource-delete-btn,.resource-edit-btn{background:transparent;border:1px solid var(--border);padding:4px 10px;border-radius:6px;font-size:.75rem;cursor:pointer;flex-shrink:0;color:inherit}.resource-delete-btn{color:var(--danger)}.resource-edit-row{display:flex;gap:8px;flex:1}.resource-edit-row input{padding:6px 10px;border-radius:6px;border:1px solid var(--border);background:var(--bg-input);color:inherit;flex:1;min-width:0}.auth-form{max-width:380px;margin:60px auto;display:flex;flex-direction:column;gap:12px;text-align:center}.auth-form input,.auth-form button{padding:12px;border-radius:8px;border:1px solid var(--border)}.google-btn{background:var(--accent);color:var(--accent-contrast);border:none;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px;border-radius:8px}.google-btn:hover{filter:brightness(1.05)}.add-item-form{margin-top:20px;padding:16px;border:1px dashed var(--border);border-radius:10px;display:flex;flex-direction:column;gap:10px}.add-item-form input,.add-item-form button{padding:10px 14px;border-radius:8px;border:1px solid var(--border);background:var(--bg-input);color:inherit}.add-item-form button{cursor:pointer;background:var(--accent);color:var(--accent-contrast);font-weight:600;border:none}.link-preview{font-size:.85rem;color:var(--text-subtle)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--overlay);display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000}.modal-content{background:var(--bg-elevated);border:1px solid var(--border);border-radius:14px;padding:28px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow)}.modal-content.modal-wide{max-width:560px}.create-section-form label,.payment-request-form label{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;font-size:.9rem;text-align:left}.create-section-form input,.create-section-form textarea,.create-section-form select,.payment-request-form input,.payment-request-form select{padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-input);color:inherit;font-family:inherit}.create-section-form textarea{min-height:70px;resize:vertical}.form-section-divider{border:none;border-top:1px dashed var(--border);margin:18px 0}.admin-only-toggle{display:flex!important;flex-direction:row!important;align-items:center;gap:8px!important}.modal-links-label{font-size:.85rem;color:var(--text-subtle);margin-bottom:8px}.modal-link-row{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;margin-bottom:8px}.modal-link-remove{background:transparent;border:1px solid var(--border);color:var(--danger);border-radius:6px;cursor:pointer}.modal-add-link{background:none;border:none;color:var(--accent);cursor:pointer;padding:4px 0;font-size:.85rem}.modal-actions{display:flex;gap:10px;margin-top:18px}.modal-actions button{flex:1;padding:10px;border-radius:8px;cursor:pointer}.modal-actions button[type=submit]{background:var(--accent);color:var(--accent-contrast);font-weight:600;border:none}.modal-actions button[type=button]{background:transparent;border:1px solid var(--border);color:inherit}.modal-actions.stacked{flex-direction:column}.paid-preview-media{width:100%;border-radius:10px;overflow:hidden;margin-bottom:14px;aspect-ratio:16 / 9;background:var(--bg-input)}.paid-preview-media img,.paid-preview-media video{width:100%;height:100%;object-fit:cover}.paid-price-line{font-size:1.4rem;font-weight:700;color:var(--accent);margin-bottom:10px}.paid-code-input{width:100%;padding:12px;border-radius:8px;border:1px solid var(--border);background:var(--bg-input);color:inherit;margin-bottom:10px;font-size:1.1rem;letter-spacing:3px;text-align:center}.request-access-link{display:block;text-align:center;margin-top:12px;background:none;border:none;color:var(--accent);cursor:pointer;font-size:.9rem;text-decoration:underline}.payment-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}.payment-actions .send-btn{background:var(--accent);color:var(--accent-contrast);border:none;font-weight:700}.payment-actions .whatsapp-btn{background:#25d366;color:#04220f;border:none;font-weight:700}.payment-actions button{padding:12px;border-radius:8px;cursor:pointer}.locked-section-panel{text-align:center;padding:40px 24px;border:1px dashed var(--border);border-radius:14px}.link-thumb-preview{width:160px;max-width:100%;aspect-ratio:16 / 9;object-fit:cover;border-radius:8px;border:1px solid var(--border)}.modal-link-row-wrap{margin-bottom:10px}.pomodoro-widget{position:fixed;bottom:20px;right:20px;z-index:900}.pomodoro-bubble{width:56px;height:56px;border-radius:50%;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text);font-size:.85rem;font-weight:700;cursor:pointer;box-shadow:var(--shadow)}.pomodoro-panel{width:220px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}.pomodoro-header{display:flex;justify-content:space-between;align-items:center;font-weight:700;margin-bottom:12px}.pomodoro-header button{background:none;border:none;color:inherit;cursor:pointer;font-size:1rem}.pomodoro-presets{display:flex;gap:6px;margin-bottom:12px;flex-wrap:wrap}.pomodoro-presets button{flex:1;padding:6px 0;border-radius:6px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer;font-size:.8rem}.pomodoro-presets button.is-active{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent)}.pomodoro-time{font-size:1.8rem;font-weight:700;text-align:center;margin-bottom:12px;font-variant-numeric:tabular-nums}.pomodoro-done{color:var(--success);font-size:1.1rem}.pomodoro-overtime{color:var(--accent)}.pomodoro-start-btn{width:100%;padding:10px;border-radius:8px;border:none;background:var(--accent);color:var(--accent-contrast);font-weight:700;cursor:pointer}.pomodoro-controls{display:flex;gap:8px}.pomodoro-controls button{flex:1;padding:8px;border-radius:8px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer}.admin-table{width:100%;border-collapse:collapse;margin-top:20px}.admin-table th,.admin-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border);font-size:.9rem}.admin-table-actions{display:flex;gap:8px}.admin-table-actions button{padding:6px 10px;border-radius:6px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer;font-size:.8rem}.admin-denied{text-align:center;padding:60px 20px;color:var(--text-subtle)}.player-page-wrap{max-width:1200px;margin:0 auto;padding:24px 20px 60px}.player-title{margin:12px 0 20px}.player-page{display:flex;gap:24px;flex-wrap:wrap}.video-wrapper{position:relative;background:#000;overflow:hidden;flex:2;min-width:300px;aspect-ratio:16 / 9}.video-wrapper iframe{width:100%;height:100%;border:none;border-radius:12px;opacity:0;transition:opacity .25s ease}.video-wrapper.is-loaded iframe{opacity:1}.video-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--text-subtle)}.video-wrapper.empty{display:flex;align-items:center;justify-content:center;color:var(--text-subtle)}.notes-panel,.resource-shelf{flex:1;min-width:260px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:12px;padding:18px}.notes-panel textarea{width:100%;height:200px;background:var(--bg-input);color:inherit;border:1px solid var(--border);border-radius:8px;padding:10px;font-family:inherit;resize:vertical}.notes-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.notes-status{font-size:.8rem;color:var(--text-subtle)}.notes-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.notes-actions button{padding:8px 16px;border-radius:8px;border:1px solid var(--border);background:transparent;color:inherit;cursor:pointer}