* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --error: #ef4444;
    --border: #475569;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#last-update {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

main {
    padding: 1.5rem 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.filters {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.filter-group {
    margin-bottom: 1rem;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.checkbox-item input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
    accent-color: var(--accent);
}

.checkbox-item label {
    font-size: 0.8125rem;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

#region-toggle-btns {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.btn-small {
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-small:hover {
    background: var(--border);
    color: var(--text-primary);
}

#priority-input {
    width: 100%;
    max-width: 400px;
    padding: 0.5rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

#priority-input:focus {
    outline: none;
    border-color: var(--accent);
}

#priority-input::placeholder {
    color: var(--text-muted);
}

.stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--success);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.table-container {
    position: relative;
}

.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    border-radius: 0.5rem;
    padding: 1rem;
    color: var(--error);
    text-align: center;
}

.hidden {
    display: none !important;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    overflow: hidden;
}

thead {
    background: var(--bg-tertiary);
}

th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

th:hover {
    color: var(--text-primary);
}

th.sorted-asc::after {
    content: ' ▲';
    font-size: 0.625rem;
}

th.sorted-desc::after {
    content: ' ▼';
    font-size: 0.625rem;
}

td {
    padding: 0.625rem 1rem;
    font-size: 0.8125rem;
    border-top: 1px solid var(--border);
}

tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

td.region {
    font-weight: 600;
    color: var(--accent);
}

td.hostname {
    color: var(--text-secondary);
}

td.service {
    color: var(--text-primary);
    font-weight: 500;
}

td.tag {
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--success);
}

td.commit {
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-muted);
    font-size: 0.75rem;
}

td.date {
    color: var(--text-secondary);
    white-space: nowrap;
}

td.branch {
    font-family: 'SF Mono', 'Fira Code', monospace;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.server-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.server-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.card-header {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.card-region {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-server {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.125rem;
}

.card-body {
    padding: 1rem;
    text-align: center;
}

.card-version {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--success);
    word-break: break-all;
}

.card-footer {
    padding: 0.625rem 1rem;
    background: rgba(16, 185, 129, 0.08);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-date {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.card-services-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 0.125rem 0.5rem;
    border-radius: 1rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
    font-size: 1rem;
}

.detail-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.detail-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    main {
        padding: 1rem;
    }

    .stats {
        flex-direction: column;
    }

    table {
        font-size: 0.75rem;
    }

    th, td {
        padding: 0.5rem;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 0.75rem;
    }

    .detail-header {
        flex-wrap: wrap;
    }

    .detail-header h2 {
        font-size: 1rem;
    }
}