:root {
            --primary-color: #3a6ea5;
            --accent-color: #2c5282;
            --light-gray: #f8f9fa;
            --border-color: #dee2e6;
            --warning-bg: #fff3cd;
            --warning-border: #ffc107;
        }
        .color-preview {
            width: 100%;
            height: 130px;
            border-radius: 16px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            transition: background 0.1s ease;
            border: 1px solid rgba(0,0,0,0.1);
            margin-bottom: 1rem;
        }
        .gamut-badge {
            display: inline-block;
            background: #28a74520;
            color: #155724;
            border-radius: 30px;
            padding: 0.2rem 0.8rem;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .gamut-badge.warning {
            background: #ffc10730;
            color: #856404;
        }
        .step-guide {
            background: #fef9e6;
            border-radius: 16px;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
        }
        .step-guide ol {
            margin-bottom: 0;
        }