.property-table th,
        .property-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .input-group-custom {
            margin-bottom: 1rem;
        }
        .deep-dive {
            margin: 1.8rem 0;
        }
        .deep-dive p {
            text-align: justify;
        }
        .unit-note {
            font-size: 0.9rem;
            color: #6c757d;
        }
        .coord-input {
            margin-bottom: 0.5rem;
        }
        .geometry-canvas {
            width: 100%;
            height: auto;
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-top: 1.5rem;
            display: block;
        }
        .canvas-container {
            text-align: center;
            margin-top: 1rem;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
        }
        .legend-color.red {
            background-color: #dc3545;
        }
        .legend-color.blue {
            background-color: #0d6efd;
        }
        .legend-color.gray {
            background-color: #6c757d;
        }
        .legend-color.green {
            background-color: #28a745;
        }
        .result-display-box {
            background-color: #f8f9fa;
            border-radius: 8px;
            padding: 1.2rem;
            margin: 0.5rem 0;
            border: 1px solid #e9ecef;
        }
        .result-display-box .big-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: #1a1a2e;
        }
        .result-display-box .label {
            font-size: 0.85rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .operator-selector .btn {
            min-width: 48px;
            font-weight: 600;
        }
        .operator-selector .btn.active-operator {
            background-color: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .quick-convert-box {
            background-color: #f0f4f8;
            border-radius: 8px;
            padding: 1rem 1.2rem;
            margin-top: 0.5rem;
        }
        .quick-convert-box .input-group {
            max-width: 280px;
        }
        .fraction-help {
            font-size: 0.8rem;
            color: #6c757d;
            margin-top: 0.2rem;
        }
        @media (max-width: 768px) {
            .result-display-box .big-number {
                font-size: 1.6rem;
            }
            .legend {
                gap: 0.8rem;
                font-size: 0.8rem;
            }
        }
        .unit-badge {
            font-size: 0.75rem;
            background-color: #e9ecef;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
            color: #495057;
            margin-left: 0.3rem;
        }
        .inch-fraction-select {
            min-width: 70px;
        }