:root {

            --success-color: #198754;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --info-color: #0dcaf0;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #212529;
            --text-muted: #6c757d;
            --raid0-color: #6f42c1;
            --raid1-color: #0dcaf0;
            --raid5-color: #198754;
            --raid6-color: #fd7e14;
            --raid10-color: #d63384;
        }
         .page-header {
            background: linear-gradient(135deg, rgba(13, 110, 253, 0.1) 0%, rgba(25, 135, 84, 0.1) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(13, 110, 253, 0.2);
            position: relative;
            overflow: hidden;   color: var(--text-color);
        }
        .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);
        }
        .raid-visualization {
            display: flex;
            flex-direction: column;
            margin: 1.5rem 0;
        }
        .raid-disks {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 1rem;
        }
        .disk {
            width: 80px;
            height: 120px;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: all 0.3s;
            background-color: var(--light-gray);
        }
        .disk.active {
            border-color: var(--primary-color);
            background-color: rgba(13, 110, 253, 0.1);
        }
        .disk.failed {
            border-color: var(--danger-color);
            background-color: rgba(220, 53, 69, 0.1);
        }
        .disk.parity {
            border-color: var(--warning-color);
            background-color: rgba(255, 193, 7, 0.1);
        }
        .disk.mirror {
            border-color: var(--info-color);
            background-color: rgba(13, 202, 240, 0.1);
        }
        .disk-label {
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 5px;
        }
        .disk-size {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .raid-legend {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .legend-item {
            display: flex;
            align-items: center;
        }
        .legend-color {
            width: 20px;
            height: 20px;
            border-radius: 4px;
            margin-right: 0.5rem;
            border: 1px solid var(--border-color);
        }
        .raid-level-card {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 1.25rem;
            margin-bottom: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }
        .raid-level-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        .raid-level-card.selected {
            border-color: var(--primary-color);
            background-color: rgba(13, 110, 253, 0.05);
        }
        .raid-level-card.raid0 {
            border-left: 4px solid var(--raid0-color);
        }
        .raid-level-card.raid1 {
            border-left: 4px solid var(--raid1-color);
        }
        .raid-level-card.raid5 {
            border-left: 4px solid var(--raid5-color);
        }
        .raid-level-card.raid6 {
            border-left: 4px solid var(--raid6-color);
        }
        .raid-level-card.raid10 {
            border-left: 4px solid var(--raid10-color);
        }
        .raid-level-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
        }
        .raid-level-name {
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0;
        }
        .raid-level-badge {
            font-size: 0.75rem;
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .raid-features {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        .feature {
            display: flex;
            align-items: center;
        }
        .feature-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 0.5rem;
            background-color: var(--light-gray);
        }
        .calculation-result {
            padding: 12px;
            background-color: white;
            border-radius: 4px;
            border: 1px solid #eee;
            font-size: 1.1rem;
            margin: 10px 0;
            text-align: center;
        }
        .result-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .result-item {
            background: white;
            border-radius: 6px;
            padding: 1rem;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .result-value {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }
        .result-value.small {
            font-size: 1.25rem;
        }
        .warning-box {
            background-color: rgba(255, 193, 7, 0.05);
            border-left: 3px solid var(--warning-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        .math-box {
            background-color: rgba(111, 66, 193, 0.05);
            border-left: 3px solid var(--raid0-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .comparison-table th, .comparison-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .comparison-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background-color: rgba(13, 110, 253, 0.05);
        }
        .raid-feature-row {
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .result-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
        }
        .preset-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .preset-btn {
            background-color: rgba(13, 110, 253, 0.1);
            border: 1px solid rgba(13, 110, 253, 0.2);
            border-radius: 4px;
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s;
        }
        .preset-btn:hover {
            background-color: rgba(13, 110, 253, 0.2);
            transform: translateY(-2px);
        }
        .performance-metrics {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            margin: 1.5rem 0;
        }
        .metric {
            text-align: center;
            padding: 1rem;
            min-width: 150px;
        }
        .metric-value {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .failure-simulator {
            background-color: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
        }
        .simulator-controls {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
        }
        .failure-status {
            padding: 1rem;
            border-radius: 6px;
            margin-top: 1rem;
            text-align: center;
            font-weight: 600;
        }
        .status-ok {
            background-color: rgba(25, 135, 84, 0.1);
            color: var(--success-color);
            border: 1px solid rgba(25, 135, 84, 0.2);
        }
        .status-warning {
            background-color: rgba(255, 193, 7, 0.1);
            color: var(--warning-color);
            border: 1px solid rgba(255, 193, 7, 0.2);
        }
        .status-critical {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
            border: 1px solid rgba(220, 53, 69, 0.2);
        }
        .mixed-disks-container {
            margin-top: 1rem;
            display: none;
        }
        .mixed-disk-row {
            display: flex;
            align-items: center;
            margin-bottom: 0.5rem;
            padding: 0.5rem;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            background-color: var(--light-gray);
        }
        .mixed-disk-label {
            min-width: 80px;
            font-weight: 600;
        }
        .disk-size-input {
            width: 120px;
            margin-right: 1rem;
        }
        .disk-unit-select {
            width: 80px;
            margin-right: 1rem;
        }
        .add-disk-btn, .remove-disk-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-left: 0.5rem;
        }
        .capacity-mode-selector {
            display: flex;
            gap: 1rem;
            margin-bottom: 1rem;
        }
        .capacity-mode-btn {
            padding: 0.75rem 1.5rem;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            background: white;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
        }
        .capacity-mode-btn.active {
            border-color: var(--primary-color);
            background-color: rgba(13, 110, 253, 0.1);
            color: var(--primary-color);
        }
        .capacity-warning {
            background-color: rgba(255, 193, 7, 0.1);
            border-left: 3px solid var(--warning-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1rem 0;
        }
        .effective-capacity {
            font-weight: 600;
            color: var(--primary-color);
        }
        .disk-summary {
            background-color: white;
            border-radius: 6px;
            padding: 1rem;
            margin-top: 1rem;
            border: 1px solid var(--border-color);
        }
        .disk-summary-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        .disk-summary-item {
            display: flex;
            justify-content: space-between;
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .disk-summary-item:last-child {
            border-bottom: none;
        }