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h3{margin-top:0;margin-bottom:.75rem;font-size:1.25rem;font-weight:600;color:var(--primary-color);transition:color .2s ease}.card-title-link:hover h3{color:var(--primary-hover)}.card-title{margin-top:0;margin-bottom:.75rem;font-size:1.25rem;font-weight:600;color:var(--primary-color)}.card-description{color:var(--text-secondary);font-size:.95rem;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis;min-height:calc(1.6 * .95rem * 3);margin-bottom:0}.card-footer{padding:1rem 1.75rem 1.5rem;border-top:1px solid #eee;background-color:#f8f9fa}.card-stats{margin-bottom:1.25rem;display:flex;flex-wrap:wrap;gap:.5rem 1rem;font-size:.9rem;color:var(--text-secondary);align-items:center}.card-btn{width:100%;font-size:.95rem}.btn{padding:.75rem 1.5rem;border:1px solid var(--border-color);border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s 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h3{margin-top:3rem;font-size:1.75rem}.subjects-list{display:flex;flex-direction:column;gap:1.5rem;margin-top:1.5rem}.subject-card-link{text-decoration:none;color:inherit}.subject-card{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem 2rem;box-shadow:var(--box-shadow);transition:transform .2s ease,box-shadow .2s ease}.subject-card:hover{transform:translateY(-5px);box-shadow:0 8px 15px #00000014}.subject-card h4{margin:0 0 1rem}.subject-card-stats{display:flex;gap:1.5rem;font-size:.9rem;color:var(--text-secondary);padding-top:1rem;border-top:1px solid #eee}.back-link{display:inline-block;margin-bottom:1.5rem;text-decoration:none;color:var(--primary-color);font-weight:600}.subject-card-stats a.stat-link{text-decoration:none;color:inherit;transition:all .2s ease;border-radius:4px;padding:4px 8px;display:inline-block}.subject-card-stats a.stat-link:hover{background-color:#3b82f61a;color:#3b82f6;transform:translateY(-2px)}.subject-card-stats a.stat-link span{font-weight:500}.subject-detail-page .page-header{margin-bottom:1rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.subject-detail-page .page-header h1{margin:0}.subject-detail-page .back-link{display:inline-block;margin-bottom:1.5rem;text-decoration:none;color:var(--primary-color);font-weight:600}.chapters-section h3{margin-top:3rem;font-size:1.75rem}.chapters-list{display:flex;flex-direction:column;gap:1.5rem;margin-top:1.5rem}.chapter-card{background:var(--background-secondary);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem 2rem;box-shadow:var(--box-shadow)}.chapter-card h4{margin:0 0 1rem}.chapter-card-stats{display:flex;flex-wrap:wrap;gap:.75rem;padding-top:1rem;border-top:1px solid #eee}.stat-link{text-decoration:none;background-color:#f1f3f5;color:var(--text-secondary);padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:600;transition:all .2s ease}.stat-link:hover{background-color:var(--primary-color);color:var(--background-secondary);transform:translateY(-2px)}.stat-link.disabled{background-color:#e9ecef;color:#adb5bd;pointer-events:none}.tab-navigation{display:flex;gap:.5rem;border-bottom:2px solid var(--border-color);margin-bottom:2rem}.tab-button{padding:.75rem 1.5rem;border:none;background:none;font-size:1.1rem;font-weight:600;cursor:pointer;color:var(--text-secondary);border-bottom:3px solid transparent;transform:translateY(2px)}.tab-button.active{color:var(--primary-color);border-bottom-color:var(--primary-color)}.tab-content{padding:1rem 0}.details-section{background:var(--background-secondary);padding:2rem;border-radius:12px;border:1px solid var(--border-color)}.markdown-content table{width:100%;border-collapse:collapse;margin:1.5rem 0}.markdown-content th,.markdown-content td{border:1px solid var(--border-color);padding:.75rem;text-align:left}.markdown-content th{background-color:#f8f9fa}.markdown-content ul{line-height:1.8}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.publish-modal{background:#fff;padding:2rem;border-radius:8px;width:90%;max-width:500px}.publish-modal select{width:100%;padding:8px;margin-top:5px;margin-bottom:15px;border-radius:4px;border:1px solid #ccc}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.player-header{text-align:center;margin-bottom:2rem}.player-header .back-link{display:block;text-align:left;margin-bottom:1rem;color:var(--primary-color);font-weight:600;text-decoration:none}.player-header h1{margin-bottom:.5rem}.tool-card{background:var(--background-secondary);padding:1.5rem 2rem;border-radius:12px;box-shadow:var(--box-shadow);margin-bottom:1.5rem;border:1px solid var(--border-color)}.tool-card-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #eee;padding-bottom:1rem;margin-bottom:1rem}.tool-card-header h4{margin:0;text-transform:capitalize;color:var(--primary-color)}.tool-content{white-space:pre-wrap;line-height:1.7;color:var(--text-secondary)}.study-tools-page{max-width:800px;margin:0 auto}.overall-mastery-card{background:var(--background-secondary);border-radius:12px;padding:1.5rem;border:1px solid var(--border-color);box-shadow:var(--box-shadow);margin-bottom:2rem}.mastery-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.5rem}.mastery-header h4{margin:0;font-size:1.1rem;color:var(--text-secondary);font-weight:600}.mastery-percentage{font-size:1.75rem;font-weight:700;color:var(--primary-color)}body[data-theme=dark] .mastery-percentage{color:var(--link-color)}.mastery-subtitle{margin:0 0 1rem;font-size:.9rem;color:var(--text-secondary)}.mastery-progress-bar-container{width:100%;height:12px;background-color:#e9ecef;border-radius:6px;overflow:hidden}body[data-theme=dark] .mastery-progress-bar-container{background-color:var(--border-color)}.mastery-progress-bar-fill{height:100%;background:linear-gradient(90deg,#1e88e5,#4a90e2);border-radius:6px;transition:width .5s ease-out}.progress-card{background-color:var(--background-secondary);border-radius:12px;padding:1.5rem;border:1px solid var(--border-color);box-shadow:var(--box-shadow);display:flex;flex-direction:column}.progress-card-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.progress-card-icon{font-size:1.5rem}.progress-card-title{margin:0;font-size:1.1rem;color:var(--text-primary);font-weight:600}.progress-card-stats{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.75rem}.progress-card-stats strong{font-size:1.75rem;font-weight:700;color:var(--text-primary)}.progress-card-stats .stats-label{font-size:.9rem;font-weight:500;color:var(--text-secondary)}.stacked-progress-bar{display:flex;width:100%;height:10px;border-radius:5px;overflow:hidden;background-color:#e9ecef}body[data-theme=dark] .stacked-progress-bar{background-color:var(--border-color)}.progress-segment{height:100%;transition:width .5s ease-out}.segment-green{background-color:var(--success-color)}.segment-yellow{background-color:#ffc107}.segment-red{background-color:var(--error-color)}.progress-card-legend{display:flex;flex-wrap:wrap;gap:.5rem 1rem;margin-top:1rem}.legend-item{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-secondary)}.legend-dot{width:10px;height:10px;border-radius:50%}.legend-dot.segment-green{background-color:var(--success-color)}.legend-dot.segment-yellow{background-color:#ffc107}.legend-dot.segment-red{background-color:var(--error-color)}.dashboard .stats-grid{display:grid;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.dashboard .stats-grid-2-col{display:grid;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;gap:1.5rem;margin-bottom:2rem;grid-template-columns:1fr}@media (min-width: 768px){.dashboard .stats-grid-2-col{grid-template-columns:repeat(2,1fr)}}.dashboard .stats-grid-3-col{display:grid;font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;gap:1.5rem;margin-bottom:2rem;grid-template-columns:1fr}@media (min-width: 992px){.dashboard .stats-grid-3-col{grid-template-columns:repeat(3,1fr)}}.dashboard-section{background:var(--background-secondary);padding:1.5rem 2rem;border-radius:12px;box-shadow:var(--box-shadow);border:1px solid var(--border-color);margin-bottom:2rem}.dashboard-section h3{margin-top:0;margin-bottom:1.5rem;border-bottom:1px solid #eee;padding-bottom:1rem}.notification-banner{padding:1rem 1.5rem;border-radius:8px;margin-bottom:2rem;border:1px solid}.notification-banner.warning{background-color:var(--warning-bg);border-color:var(--warning-border);color:var(--warning-text)}.notification-banner p{margin:0;font-weight:600}.notification-banner .btn{margin-top:.75rem;padding:.5rem 1rem;font-size:.9rem}.item-list{display:flex;flex-direction:column;gap:1rem}.list-item-link{text-decoration:none;color:inherit;display:block}.list-item{border:1px solid var(--border-color);padding:1.5rem;border-radius:8px;background-color:#fdfdfd;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.list-item:hover{background-color:var(--background-secondary);border-color:#ccc;transform:translateY(-2px)}.list-item h4{margin:0 0 .5rem}.list-item p{margin:0;font-size:.9rem;color:var(--text-secondary)}.section-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;border-bottom:1px solid #eee;padding-bottom:1rem}.section-header h3{margin:0;padding:0;border:none}.notification-section .list-item{background-color:#fff3cd;border-left:5px solid #ffeeba}.notification-item p{margin-top:0;margin-bottom:.5rem}.notification-item small{color:var(--text-secondary)}.pagination-controls{display:flex;justify-content:space-between;align-items:center;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--border-color)}.pagination-controls button{background:none;border:1px solid var(--border-color);padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-weight:600;transition:background-color .2s,color .2s}.pagination-controls button:hover:not(:disabled){background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.pagination-controls button:disabled{color:#aaa;cursor:not-allowed}.pagination-controls span{font-size:.9rem;font-weight:500;color:var(--text-secondary)}.notification-item.pinned{background-color:#fffbea;border-left:4px solid gold}.notification-item button{transition:color .2s ease;padding:0;line-height:1}.notification-item button:hover{color:#000}.dashboard-section .list-item{flex-direction:column;align-items:flex-start;gap:1rem}.dashboard-section .list-item:not(:has(button.btn)){flex-direction:row;align-items:center;justify-content:space-between}.dashboard-section:has(a[href="/private-content-generator"]) .list-item{flex-direction:column;align-items:flex-start}.dashboard-section:has(a[href="/private-content-generator"]) .list-item .list-item-link{width:100%}.card-stats{display:flex;flex-wrap:wrap;gap:.5rem 1rem;font-size:.9rem;color:var(--text-secondary);align-items:center;width:100%;padding-top:1rem;border-top:1px solid #eee}.card-stats span{display:inline-flex;align-items:center;gap:.4rem;background-color:#eef2f9;padding:.3rem .7rem;border-radius:15px;white-space:nowrap;color:#5a6a85}.stat-icon{font-style:normal}body[data-theme=dark] .dashboard-section .list-item{border-top-color:var(--border-color)}body[data-theme=dark] .list-item{background-color:var(--background-secondary)!important;border-color:var(--border-color)!important;color:var(--text-primary)!important}body[data-theme=dark] .notification-section .list-item,body[data-theme=dark] .notification-item{background-color:#2d3748!important;border-color:#4b5563!important;color:var(--text-primary)!important}body[data-theme=dark] .notification-item.pinned{background-color:#1f2937!important;border-left:4px solid #60a5fa!important;color:#e2e8f0!important}body[data-theme=dark] .join-institution-form{background-color:var(--background-secondary)!important;border:1px solid var(--border-color)!important;color:var(--text-primary)!important}body[data-theme=dark] .join-institution-form input,body[data-theme=dark] .join-institution-form textarea,body[data-theme=dark] .join-institution-form select{background-color:#1f2937!important;border-color:#374151!important;color:var(--text-primary)!important}body[data-theme=dark] .join-institution-form button{background-color:#334155!important;border-color:#475569!important;color:var(--text-primary)!important}body[data-theme=dark] .join-institution-form button:hover{background-color:#475569!important;transform:scale(1.02)}.tier-copper{background-color:#b87333;text-shadow:0 0 5px #fff8;opacity:.8}.my-toolkit-page{max-width:1000px;margin:auto;padding:20px;font-family:Poppins,sans-serif;color:#333}.page-header h1{font-size:2rem;margin-bottom:4px}.subtitle{font-size:1rem;color:#555}.back-link{text-decoration:none;color:#1e88e5;margin-bottom:10px;display:inline-block}.toolkit-filters{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}.filter-card{flex:1 1 200px;padding:12px;border-radius:12px;background:#f5f5ff;box-shadow:0 4px 8px #0000001a}.filter-card label{font-weight:700;display:block;margin-bottom:6px}.filter-card select{width:100%;padding:6px 8px;border-radius:8px;border:1px solid #ccc}.tool-grid{display:grid;gap:16px}.tool-grid.single-tool{grid-template-columns:1fr}.tool-grid.two-tools{grid-template-columns:repeat(auto-fit,minmax(450px,1fr))}.tool-grid.multi-tools{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.tool-card{background:#fff;border-radius:14px;padding:16px;box-shadow:0 6px 16px #0000001f;transition:transform .2s,box-shadow .2s}.tool-card:hover{transform:translateY(-6px);box-shadow:0 12px 24px #0000002e}.tool-header{display:flex;align-items:center;gap:10px;margin-bottom:10px}.tool-icon{font-size:1.8rem}.tool-meta span{display:inline-block;margin-right:12px;font-size:.85rem;color:#555}.tool-content{margin-top:10px;line-height:1.6;font-size:.95rem;white-space:pre-wrap;overflow-wrap:break-word;word-break:break-word}.loading-msg,.no-tools,.error-msg{text-align:center;font-weight:700;margin:20px 0}.tool-card.summary{border-left:4px solid #1e88e5;background:#e3f2fd}.tool-card.story{border-left:4px solid #ff6f00;background:#fff3e0}.tool-card.real_life_examples{border-left:4px solid #43a047;background:#e8f5e9}.tool-card.chronological_sequence{border-left:4px solid #fbc02d;background:#fffde7}.tool-card.mind_map_text{border-left:4px solid #00acc1;background:#e0f7fa}.tool-card.formula_sheet{border-left:4px solid #8e24aa;background:#f3e5f5}.tool-card.mnemonics{border-left:4px solid #d81b60;background:#fce4ec}@media 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