:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
        } 
        .page-header {
            background: linear-gradient(135deg, rgba(169, 214, 229, 0.4) 0%, rgba(44, 125, 160, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(44, 125, 160, 0.2);
            position: relative;
            overflow: hidden;color:#333
        } 
        
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-item.active {
            color: var(--text-color);
        }
        .tool-card {
            background: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .tool-header {
            padding-bottom: 15px;
            margin-bottom: 25px;
            border-bottom: 1px solid var(--border-color);
        }
        .tool-header h2 {
            font-weight: 600;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        .form-control, .form-select {
            border: 1px solid #ddd;
            border-radius: 6px;
            padding: 0.75rem;
            transition: all 0.3s;
        }
        .form-control:focus, .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.15);
        }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 6px;
            transition: all 0.3s;
        }
        .btn-primary:hover {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            transform: translateY(-1px);
        }
        .btn-outline-secondary {
            font-weight: 600;
            border-radius: 6px;
            padding: 0.75rem 1.5rem;
        }
        #map {
            height: 300px;
            width: 100%;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            margin: 1.5rem 0;
            z-index: 1;
        }
        .format-badge {
            background-color: rgba(44, 125, 160, 0.1);
            color: var(--primary-color);
            padding: 0.25rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
        }
        .result-box {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1rem;
            margin-top: 1rem;
            border: 1px solid var(--border-color);
        }
        .coord-display {
            font-family: 'Courier New', monospace;
            font-size: 1.2rem;
            background: white;
            padding: 0.75rem;
            border-radius: 4px;
            border: 1px solid #ddd;
            margin: 0.5rem 0;
            word-break: break-all;
        }
        .copy-btn {
            background: white;
            border: 1px solid #ddd;
            border-radius: 4px;
            padding: 0.25rem 0.75rem;
            transition: all 0.2s;
        }
        .copy-btn:hover {
            background: var(--light-gray);
            border-color: var(--primary-color);
        }
        .example-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .example-btn {
            background-color: rgba(44, 125, 160, 0.1);
            border: 1px solid rgba(44, 125, 160, 0.2);
            border-radius: 4px;
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s;
            font-family: 'Courier New', monospace;
        }
        .example-btn:hover {
            background-color: rgba(44, 125, 160, 0.2);
            transform: translateY(-2px);
        }
        /* Batch processing table */
        .batch-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .batch-table th {
            background-color: var(--primary-color);
            color: white;
            padding: 0.5rem;
            text-align: left;
        }
        .batch-table td {
            padding: 0.5rem;
            border-bottom: 1px solid #ddd;
        }
        .batch-table tr:hover {
            background-color: var(--light-gray);
        }
        /* Tabs style */
        .nav-tabs .nav-link {
            color: var(--text-muted);
            border: none;
            border-bottom: 2px solid transparent;
            font-weight: 600;
        }
        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            background-color: transparent;
            border-bottom: 2px solid var(--primary-color);
        }
        .tab-content {
            padding: 1.5rem 0;
        }
        /* Info boxes */
        .info-box {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        .conversion-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .conversion-table th, .conversion-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .conversion-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }