.zone-bar-container {
            background: #f1f3f5;
            border-radius: 12px;
            padding: 0.5rem;
            margin: 1.5rem 0;
        }
        .zone-color { height: 48px; border-radius: 8px; transition: all 0.2s; }
        .zone-legend {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.8rem;
        }
        .zone-card {
            border-left: 5px solid;
            padding: 0.75rem;
            margin-bottom: 0.75rem;
            background: #fefefe;
            border-radius: 0.75rem;
            box-shadow: 0 1px 2px rgba(0,0,0,0.05);
        }
        .hr-table th { background-color: #e9ecef; }
        .formula-badge { font-size: 0.85rem; background: #eef2ff; padding: 0.2rem 0.6rem; border-radius: 20px; }
        .intensity-tag { font-weight: 600; letter-spacing: -0.2px; }
        .canvas-zone {
            width: 100%;
            height: auto;
            background: #ffffff;
            border-radius: 1rem;
            margin-top: 1rem;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
        }
        .science-card {
            background: #f8fafc;
            border-radius: 1rem;
            padding: 1.5rem;
            margin: 2rem 0;
        }
        .ref-link {
            font-size: 0.9rem;
        }
        .disclaimer {
            background: #fff8e7;
            border-left: 4px solid #ffc107;
            padding: 1rem;
            border-radius: 8px;
            margin: 1rem 0;
        }
        .result-value-large {
            font-size: 2rem;
            font-weight: 700;
            color: #0d6efd;
        }
        .zone-table th, .zone-table td { vertical-align: middle; }
        .author-badge {
            background-color: #e9ecef;
            border-radius: 40px;
            padding: 0.4rem 1rem;
            font-size: 0.85rem;
            display: inline-block;
        }
        .btn-print {
            background-color: #f8f9fa;
            border-color: #dee2e6;
        }
        .device-compare {
            background: #ffffff;
            border-radius: 1rem;
            padding: 1rem;
            margin: 1rem 0;
            border: 1px solid #e9ecef;
        }