:root {
    --bg: #0f1419;
    --surface: #1a2332;
    --border: #2d3a4f;
    --text: #e8edf5;
    --muted: #8b9cb3;
    --accent: #3b82f6;
    --ok: #22c55e;
    --warn: #f59e0b;
    --danger: #ef4444;
    --locked: #a855f7;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.eyebrow {
    margin: 0;
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

h1, h2 { margin: 0.25rem 0 0; }

nav { display: flex; gap: 0.75rem; }

nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
}

nav a.active, nav a:hover {
    color: var(--text);
    background: rgba(59, 130, 246, 0.15);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
    display: grid;
    gap: 1.25rem;
}

.banner {
    padding: 1rem 1.25rem;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    border: 1px solid var(--border);
}

.banner--normal { background: rgba(34, 197, 94, 0.12); border-color: var(--ok); }
.banner--warning { background: rgba(245, 158, 11, 0.12); border-color: var(--warn); }
.banner--cutoff { background: rgba(239, 68, 68, 0.12); border-color: var(--danger); }
.banner--locked { background: rgba(168, 85, 247, 0.12); border-color: var(--locked); }

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

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
}

.card--danger { border-color: var(--danger); }

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.gauge {
    font-size: 3rem;
    font-weight: 700;
    margin: 0.5rem 0 0;
    font-variant-numeric: tabular-nums;
}

.gauge--small { font-size: 2rem; }

.unit { color: var(--muted); margin: 0; }

.bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    margin-top: 0.75rem;
    overflow: hidden;
}

.bar__fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--ok), var(--warn), var(--danger));
    transition: width 0.4s ease;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.table th, .table td {
    text-align: left;
    padding: 0.6rem 0.5rem;
    border-bottom: 1px solid var(--border);
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(59, 130, 246, 0.2);
    font-size: 0.8rem;
}

.btn {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    padding: 0.45rem 0.9rem;
    border-radius: 6px;
    cursor: pointer;
}

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

.inline-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
}

input[type="text"], input[type="password"] {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.45rem 0.75rem;
    border-radius: 6px;
}

.hint { color: var(--muted); font-size: 0.9rem; }
.error { color: var(--danger); }

.settings-list {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 0.5rem 1rem;
}

.settings-list dt { color: var(--muted); }
.settings-list dd { margin: 0; }

.code-block {
    background: var(--bg);
    padding: 1rem;
    border-radius: 8px;
    overflow: auto;
    font-size: 0.8rem;
    max-height: 400px;
}

code { font-size: 0.85em; }