:root {
    --primary-color: #2c7da0;
    --secondary-color: #a9d6e5;
    --accent-color: #01497c;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-gray: #f8f9fa;
    --border-color: #eaeaea;
    --text-color: #333;
    --text-muted: #6c757d;
}.form-select{padding:0rem}
 .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: var(--text-color);
}.input-group-text{width:110px}
.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);
}
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 125, 160, 0.15);
}
.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    font-weight: 600;
    border-radius: 6px;
    padding: 0.75rem 1.5rem;
}
.status-summary-card {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.status-badge-large {
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    font-weight: 700;
    margin: 0 auto;
    max-width: 200px;
    border: 3px solid;
}
.status-code {
    font-size: 3.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
}
.status-text {
    font-size: 1.2rem;
    font-weight: 600;
}
.summary-stat {
    text-align: center;
    padding: 1rem;
}
.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}
.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}
.status-meaning-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--info-color);
}
.status-recommendation {
    background-color: rgba(23, 162, 184, 0.1);
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    border-left: 3px solid var(--info-color);
}
.url-chain {
    background: white;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.chain-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s;
}
.chain-item:last-child {
    border-bottom: none;
}
.chain-item:hover {
    background-color: var(--light-gray);
}
.chain-number {
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
    font-weight: 600;
}
.chain-url {
    flex-grow: 1;
    font-family: 'Courier New', monospace;
    word-break: break-all;
}
.chain-status {
    margin-left: 1rem;
    flex-shrink: 0;
}
.status-category-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    transition: transform 0.3s;
    height: 100%;
}
.status-category-card:hover {
    transform: translateY(-2px);
}
.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}
.category-count {
    font-weight: 700;
    font-size: 1.2rem;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}
.category-1xx .category-count { background-color: rgba(23, 162, 184, 0.1); color: var(--info-color); }
.category-2xx .category-count { background-color: rgba(40, 167, 69, 0.1); color: var(--success-color); }
.category-3xx .category-count { background-color: rgba(255, 193, 7, 0.1); color: var(--warning-color); }
.category-4xx .category-count { background-color: rgba(220, 53, 69, 0.1); color: var(--danger-color); }
.category-5xx .category-count { background-color: rgba(108, 117, 125, 0.1); color: #6c757d; }
.category-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}
.status-codes-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}
.status-codes-table th, .status-codes-table td {
    padding: 1rem;
    text-align: left;
    border: 1px solid var(--border-color);
}
.status-codes-table th {
    background-color: var(--light-gray);
    font-weight: 600;
}
.status-codes-table tr:nth-child(even) {
    background-color: rgba(44, 125, 160, 0.05);
}
.header-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}
.header-table th, .header-table td {
    padding: 0.75rem;
    text-align: left;
    border: 1px solid var(--border-color);
}
.header-table th {
    background-color: var(--light-gray);
    font-weight: 600;
}
.header-table tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.7);
}
.header-name {
    font-weight: 600;
    font-family: 'Courier New', monospace;
    color: #0066cc;
}
.header-value {
    font-family: 'Courier New', monospace;
    word-break: break-all;
}
.history-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}
.history-table th, .history-table td {
    padding: 0.75rem;
    text-align: left;
    border: 1px solid var(--border-color);
}
.history-table th {
    background-color: var(--light-gray);
    font-weight: 600;
}
.history-table tr:hover {
    background-color: rgba(44, 125, 160, 0.05);
}
@media (max-width: 768px) {
    .status-code {
        font-size: 2.5rem;
    }
    .status-badge-large {
        padding: 1.5rem;
    }
}
.example-urls {
    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);
}
.loading-indicator {
    display: none;
    text-align: center;
    padding: 1.5rem;
}
.spinner {
    width: 3rem;
    height: 3rem;
}
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
}
.status-badge-sm {
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}
.recent-check-item {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}
.recent-check-item:last-child {
    border-bottom: none;
}
.recent-check-url {
    flex-grow: 1;
    font-size: 0.9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.recent-check-status {
    margin-left: 0.5rem;
    flex-shrink: 0;
}
.status-100 { background-color: #e8f4f8; color: #0c5460; border-color: #bee5eb; }
.status-101 { background-color: #e8f4f8; color: #0c5460; border-color: #bee5eb; }
.status-102 { background-color: #e8f4f8; color: #0c5460; border-color: #bee5eb; }
.status-103 { background-color: #e8f4f8; color: #0c5460; border-color: #bee5eb; }
.status-200 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-201 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-202 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-203 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-204 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-205 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-206 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-207 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-208 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-226 { background-color: #d4edda; color: #155724; border-color: #c3e6cb; }
.status-300 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-301 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-302 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-303 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-304 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-305 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-307 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-308 { background-color: #fff3cd; color: #856404; border-color: #ffeeba; }
.status-400 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-401 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-402 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-403 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-404 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-405 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-406 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-407 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-408 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-409 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-410 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-411 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-412 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-413 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-414 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-415 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-416 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-417 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-418 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-421 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-422 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-423 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-424 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-425 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-426 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-428 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-429 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-431 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-451 { background-color: #f8d7da; color: #721c24; border-color: #f5c6cb; }
.status-500 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-501 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-502 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-503 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-504 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-505 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-506 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-507 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-508 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-510 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
.status-511 { background-color: #d6d8d9; color: #383d41; border-color: #c6c8ca; }
tr.status-100 td:first-child { border-left: 4px solid #bee5eb; }
tr.status-101 td:first-child { border-left: 4px solid #bee5eb; }
tr.status-200 td:first-child { border-left: 4px solid #c3e6cb; }
tr.status-201 td:first-child { border-left: 4px solid #c3e6cb; }
tr.status-204 td:first-child { border-left: 4px solid #c3e6cb; }
tr.status-301 td:first-child { border-left: 4px solid #ffeeba; }
tr.status-302 td:first-child { border-left: 4px solid #ffeeba; }
tr.status-304 td:first-child { border-left: 4px solid #ffeeba; }
tr.status-400 td:first-child { border-left: 4px solid #f5c6cb; }
tr.status-401 td:first-child { border-left: 4px solid #f5c6cb; }
tr.status-403 td:first-child { border-left: 4px solid #f5c6cb; }
tr.status-404 td:first-child { border-left: 4px solid #f5c6cb; }
tr.status-500 td:first-child { border-left: 4px solid #c6c8ca; }
tr.status-502 td:first-child { border-left: 4px solid #c6c8ca; }
tr.status-503 td:first-child { border-left: 4px solid #c6c8ca; }
tr.status-504 td:first-child { border-left: 4px solid #c6c8ca; }
.category-1xx { border-left: 4px solid #17a2b8; }
.category-2xx { border-left: 4px solid #28a745; }
.category-3xx { border-left: 4px solid #ffc107; }
.category-4xx { border-left: 4px solid #dc3545; }
.category-5xx { border-left: 4px solid #6c757d; }
.category-1xx:hover { box-shadow: 0 4px 8px rgba(23, 162, 184, 0.1); }
.category-2xx:hover { box-shadow: 0 4px 8px rgba(40, 167, 69, 0.1); }
.category-3xx:hover { box-shadow: 0 4px 8px rgba(255, 193, 7, 0.1); }
.category-4xx:hover { box-shadow: 0 4px 8px rgba(220, 53, 69, 0.1); }
.category-5xx:hover { box-shadow: 0 4px 8px rgba(108, 117, 125, 0.1); }