.grid-preview-container {
            background: #f1f5f9;
            border-radius: 20px;
            padding: 1.5rem;
            margin: 1.2rem 0;
            border: 1px solid #e2e8f0;
        }
        .css-grid-display {
            background: white;
            border-radius: 16px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            overflow: auto;
            transition: all 0.2s;
            min-height: 280px;
        }
        .grid-item {
            background: linear-gradient(135deg, #ffffff 0%, #f9f9ff 100%);
            border-radius: 12px;
            padding: 1rem;
            text-align: center;
            font-weight: 500;
            color: #1e293b;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
            border: 1px solid rgba(13,110,253,0.2);
            transition: all 0.1s ease;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .grid-item:hover {
            transform: scale(0.98);
            background: #eef2ff;
            border-color: var(--primary-color);
        }
        .code-block {
            background-color: #1e293b;
            color: #e2e8f0;
            padding: 1rem;
            border-radius: 14px;
            font-family: 'Fira Code', 'Cascadia Code', monospace;
            font-size: 0.85rem;
            white-space: pre-wrap;
            word-break: break-all;
            max-height: 280px;
            overflow: auto;
        }
        .control-group {
            background: var(--light-gray);
            border-radius: 16px;
            padding: 1.2rem;
            margin-bottom: 1.2rem;
            border: 1px solid var(--border-color);
        }
        .range-value {
            font-weight: 600;
            color: var(--primary-color);
        }
        .example-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin: 1rem 0;
        }
        .badge-custom {
            background-color: #e9ecef;
            color: #2c3e66;
            font-weight: 500;
            padding: 0.3rem 0.7rem;
            border-radius: 30px;
        }
        .copy-btn {
            background: #2c3e66;
            border: none;
            border-radius: 40px;
            padding: 0.4rem 1rem;
            font-size: 0.8rem;
        }
        .compatibility-note {
            background-color: #e9ecef;
            border-left: 4px solid #28a745;
            padding: 1rem;
            border-radius: 12px;
            margin: 1rem 0;
        }
        .glossary-term {
            font-weight: 700;
            color: var(--primary-color);
        }
        .glossary-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 0.75rem 1rem;
            margin: 0.5rem 0;
        }
        .use-case-card {
            background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
            border-radius: 16px;
            padding: 1.2rem;
            margin: 1rem 0;
            border: 1px solid var(--border-color);
        }
        @media (max-width: 768px) {
            .grid-item { font-size: 0.7rem; padding: 0.5rem; }
        }