:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --accent: #e94560;
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #ef4444;
    --info: #60a5fa;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

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

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

.cluster-health {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border-radius: 20px;
}

.health-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-secondary);
}

.health-indicator.healthy { background: var(--success); }
.health-indicator.degraded { background: var(--warning); }
.health-indicator.critical { background: var(--danger); }

nav {
    background: var(--bg-secondary);
    padding: 0.5rem 2rem;
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--bg-card);
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border-radius: 8px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

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

.badge {
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    padding: 0.1rem 0.5rem;
    border-radius: 10px;
    margin-left: 0.25rem;
}

main {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 0.75rem;
    border-bottom: 1px solid var(--bg-secondary);
}

th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
}

td {
    font-size: 0.9rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-ready, .status-healthy, .status-synced, .status-success {
    background: rgba(74, 222, 128, 0.2);
    color: var(--success);
}

.status-notready, .status-degraded, .status-outofsync, .status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.status-progressing, .status-pending {
    background: rgba(251, 191, 36, 0.2);
    color: var(--warning);
}

.status-rejected {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.status-approved {
    background: rgba(74, 222, 128, 0.2);
    color: var(--success);
}

.alerts-list, .pending-list, .workflows-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--danger);
}

.alert-item.warning {
    border-left-color: var(--warning);
}

.pending-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
    border-left: 3px solid var(--warning);
}

.pending-item .header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.pending-item .agent {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pending-item .action {
    font-weight: 600;
}

.pending-item .description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.pending-item .buttons {
    display: flex;
    gap: 0.5rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-approve {
    background: var(--success);
    color: var(--bg-primary);
}

.btn-reject {
    background: var(--danger);
    color: white;
}

.btn-run {
    background: var(--info);
    color: var(--bg-primary);
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.workflow-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.workflow-item .info h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.workflow-item .info p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.workflow-item .triggers {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.trigger-tag {
    background: var(--bg-card);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.empty-state {
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid var(--bg-card);
}

/* Progress bar for resource usage */
.progress-bar {
    width: 100px;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    background: var(--success);
    transition: width 0.3s;
}

.progress-bar .fill.warning { background: var(--warning); }
.progress-bar .fill.danger { background: var(--danger); }

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    main {
        padding: 1rem;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.5rem;
    }
}