:root {
    --bg: #05070a;
    --panel: #0d1117;
    --panel-header: #161b22;
    --border: #30363d;
    --cyan: #00d2ff;
    --magenta: #ff007a;
    --green: #2ea043;
    --yellow: #d29922;
    --text: #e6edf3;
    --text-dim: #8b949e;
}
body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
    min-height: 100vh;
}
.nav-bar {
    max-width: 1200px;
    margin: 0 auto 20px auto;
    display: flex;
    gap: 15px;
}
.nav-link {
    color: var(--text-dim);
    text-decoration: none;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
    background: var(--panel);
    transition: 0.2s;
}
.nav-link:hover, .nav-link.active {
    color: var(--cyan);
    border-color: var(--cyan);
    background: rgba(0, 210, 255, 0.05);
}
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media(min-width: 900px) {
    .container-split {
        grid-template-columns: 2fr 1fr;
    }
}
.cluster-monitor {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.8);
}
.header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 15px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.status-pill {
    background: rgba(46, 160, 67, 0.1);
    color: var(--green);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--green);
}
.status-pill.error {
    background: rgba(255, 0, 122, 0.1);
    color: var(--magenta);
    border-color: var(--magenta);
}
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}
.metric-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 15px;
}
.metric-title {
    font-size: 0.75rem;
    color: var(--text-dim);
}
.metric-value {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--cyan);
    margin-top: 5px;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
th {
    text-align: left;
    color: var(--text-dim);
    font-weight: normal;
    padding: 10px;
    border-bottom: 1px solid var(--border);
}
td {
    padding: 12px 10px;
    border-bottom: 1px solid #161b22;
}
.state-r { color: var(--green); }
.state-pd { color: var(--yellow); }
.state-nf { color: var(--magenta); font-weight: bold; }
.progress-bar {
    width: 100px;
    height: 6px;
    background: #21262d;
    border-radius: 3px;
    overflow: hidden;
    display: inline-block;
}
.progress-fill {
    height: 100%;
    background: var(--cyan);
    transition: width 0.5s ease;
}
.node-grid {
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    gap: 4px;
    margin-top: 15px;
}
.node-cell {
    aspect-ratio: 1;
    background-color: var(--green);
    border-radius: 2px;
    opacity: 0.85;
    transition: background-color 0.3s;
}
.node-cell.busy { background-color: var(--cyan); }
.node-cell.down { background-color: var(--magenta); }