.graph-canvas {
            width: 100%;
            background: #fefefe;
            border: 1px solid #dee2e6;
            border-radius: 12px;
            margin: 1rem 0;
        }.author-bio{display:block}
        .legend {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            margin: 0.5rem 0 1rem;
            font-size: 0.85rem;
        }
        .legend-color {
            width: 18px;
            height: 18px;
            display: inline-block;
            border-radius: 4px;
            margin-right: 6px;
            vertical-align: middle;
        }
        .direction-badge {
            font-size: 1.2rem;
            font-weight: 600;
            background: #e9ecef;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            display: inline-block;
        }
        .unit-note {
            font-size: 0.85rem;
            color: #6c757d;
        }
        .input-group-custom {
            margin-bottom: 1rem;
        }