.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;
        }
        .result-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .result-card {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1rem;
            text-align: center;
            border: 1px solid #e9ecef;
        }
        .result-card .label {
            font-size: 0.85rem;
            text-transform: uppercase;
            color: #6c757d;
            letter-spacing: 0.5px;
        }
        .result-card .value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .result-card .unit {
            font-size: 0.9rem;
            color: #6c757d;
        }
        .mix-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
        }
        .mix-table th,
        .mix-table td {
            padding: 0.6rem 0.75rem;
            border: 1px solid #dee2e6;
            text-align: center;
        }
        .mix-table th {
            background-color: #e9ecef;
            font-weight: 600;
        }
        .mix-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        .shape-selector {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .shape-btn {
            background: #f1f3f5;
            border: 2px solid transparent;
            border-radius: 6px;
            padding: 0.5rem 1rem;
            cursor: pointer;
            transition: all 0.2s;
            font-weight: 500;
        }
        .shape-btn.active {
            border-color: var(--primary-color);
            background: rgba(70, 130, 180, 0.1);
            color: var(--primary-color);
        }
        .shape-btn:hover {
            background: #e9ecef;
        }
        .dimension-group {
            background: #f8f9fa;
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        .dimension-group .row {
            align-items: end;
        }
        .unit-selector {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }
        .unit-selector .btn-group .btn {
            font-size: 0.8rem;
            padding: 0.25rem 0.75rem;
        }
        .unit-selector .btn-group .btn.active {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .cost-input {
            background: #f1f3f5;
            border-radius: 8px;
            padding: 1rem;
            margin-top: 1rem;
        }
        .cost-input .reference-badge {
            display: inline-block;
            background: #e7f3ff;
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            font-size: 0.75rem;
            color: #004085;
            margin-left: 0.5rem;
        }
        .tool-header .badge {
            font-size: 0.8rem;
        }
        .limitation-box {
            background: #fff5f5;
            border-left: 5px solid #dc3545;
            padding: 1rem 1.5rem;
            border-radius: 4px;
            margin: 1rem 0;
        }
        @media (max-width: 768px) {
            .result-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .result-grid {
                grid-template-columns: 1fr;
            }
        }