body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        .header {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: white;
            padding: 3rem 0;
            text-align: center;
            margin-bottom: 2rem;
        }

        .header h1 {
            margin: 0 0 1rem 0;
            font-size: 2.5rem;
            font-weight: 300;
        }

        .header p {
            margin: 0;
            font-size: 1.25rem;
            opacity: 0.9;
        }

        .aiab-stats {
            display: flex;
            justify-content: center;
            gap: 3rem;
            margin-top: 2rem;
        }

        .aiab-stat {
            text-align: center;
        }

        .stat-number {
            display: block;
            font-size: 2rem;
            font-weight: 600;
        }

        .aiab-stat-label {
            font-size: 0.875rem;
            opacity: 0.8;
        }

        .search-section {
            background: white;
            padding: 2rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .search-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .search-box {
            position: relative;
            margin-bottom: 1rem;
        }

        .search-input {
            width: 100%;
            padding: 1rem 1rem 1rem 3rem;
            border: 2px solid #e1e5e9;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.2s;
        }

        .search-input:focus {
            outline: none;
            border-color: var(--color-primary);
        }

        .search-icon {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #6b7280;
        }

        .filters {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .aiab-filter-btn {
            padding: 0.5rem 1rem;
            border: 2px solid #e1e5e9;
            background: white;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .aiab-filter-btn.aiab-active {
            background: var(--color-primary);
            color: white;
            border-color: var(--color-primary);
        }

        .aiab-filter-btn:hover {
            border-color: var(--color-primary);
        }

        .section {
            margin: 3rem 0;
        }

        .section-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #2d3748;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .icon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 1rem;
            margin: 1rem 0;
        }

        .icon-card {
            background: white;
            border: 1px solid #e1e5e9;
            border-radius: 8px;
            padding: 1.5rem;
            text-align: center;
            transition: all 0.2s;
            cursor: pointer;
            position: relative;
        }

        .icon-card:hover {
            border-color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        .icon-card.copied {
            border-color: #10b981;
            background: #f0fdf4;
        }

        .icon-display {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            color: #4a5568;
        }

        .icon-name {
            font-size: 0.875rem;
            color: #718096;
            margin-bottom: 0.25rem;
        }

        .icon-usage {
            font-size: 0.75rem;
            color: #a0aec0;
            font-family: monospace;
        }

        .copy-feedback {
            position: absolute;
            top: 0.5rem;
            right: 0.5rem;
            background: #10b981;
            color: white;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-size: 0.75rem;
            opacity: 0;
            transition: opacity 0.2s;
        }

        .icon-card.copied .copy-feedback {
            opacity: 1;
        }

        .aiab-demo-section {
            background: #f7fafc;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
        }

        .aiab-demo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 1rem 0;
        }

        .demo-item {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid #e1e5e9;
        }

        .demo-item h4 {
            margin-top: 0;
            margin-bottom: 1rem;
            color: #2d3748;
        }

        .code-block {
            background: #2d3748;
            color: #e2e8f0;
            padding: 1rem;
            border-radius: 6px;
            font-family: 'Monaco', 'Consolas', monospace;
            font-size: 0.875rem;
            overflow-x: auto;
            margin: 1rem 0;
        }

        .keyword { color: #ff7979; }
        .string { color: #00cec9; }
        .comment { color: #636e72; }

        .results-info {
            text-align: center;
            color: #718096;
            margin: 1rem 0;
        }

        .no-results {
            text-align: center;
            padding: 3rem;
            color: #a0aec0;
        }

        .category-preview {
            display: flex;
            gap: 1rem;
            align-items: center;
            flex-wrap: wrap;
            margin: 1rem 0;
        }

        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: var(--color-primary);
            color: white;
            border: none;
            border-radius: 50%;
            width: 3rem;
            height: 3rem;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            transition: all 0.2s;
            opacity: 0;
            transform: translateY(20px);
        }

        .back-to-top.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .back-to-top:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .header h1 { font-size: 2rem; }
            .aiab-stats { gap: 1.5rem; }
            .filters { justify-content: flex-start; }
            .icon-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
        }