:root { 
            --accent-color: #e47a5d;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --mech-color: #4b7b9d;
        }
         .page-header {
            background: linear-gradient(135deg, rgba(155, 183, 212, 0.4) 0%, rgba(42, 77, 105, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(42, 77, 105, 0.2);
            position: relative;
            overflow: hidden; color: var(--text-color);
        }
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-item.active {
            color: var(--text-color);
        }
        .mech-summary {
            background: rgba(75, 123, 157, 0.1);
            border-left: 4px solid var(--mech-color);
            padding: 15px;
            border-radius: 4px;
            margin: 15px 0;
        }
        .formula-box {
            background-color: white;
            border-radius: 6px;
            padding: 15px;
            border: 1px solid #dee2e6;
            font-family: 'Courier New', monospace;
            text-align: center;
        }
        .mech-box {
            background-color: rgba(75, 123, 157, 0.05);
            border-left: 3px solid var(--mech-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        .example-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .example-chip {
            background-color: rgba(75, 123, 157, 0.1);
            border: 1px solid rgba(75, 123, 157, 0.2);
            border-radius: 4px;
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            color: var(--mech-color);
            cursor: pointer;
            transition: all 0.2s;
        }
        .example-chip:hover {
            background-color: rgba(75, 123, 157, 0.2);
            transform: translateY(-2px);
        }
        .nav-tabs .nav-tabs @media (max-width: 768px) {
            }