:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --text: #1c2024;
  --muted: #646b75;
  --border: #dfe2e7;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --ok: #15803d;
  --bad: #b91c1c;
  --row-hover: #f0f3f8;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --panel: #1a1d22;
    --text: #e6e8eb;
    --muted: #9aa1ab;
    --border: #2c3037;
    --accent: #3b82f6;
    --ok: #4ade80;
    --bad: #f87171;
    --row-hover: #22262c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
[hidden] { display: none !important; }

.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(360px, 100%); display: grid; gap: 12px; }
.login-card h1 { margin: 0 0 8px; font-size: 20px; }

.shell { display: grid; grid-template-columns: 210px 1fr; min-height: 100vh; }
.sidebar { background: var(--panel); border-right: 1px solid var(--border); padding: 16px 10px; display: flex; flex-direction: column; gap: 2px; }
.brand { font-weight: 700; font-size: 18px; padding: 4px 10px 16px; display: flex; align-items: center; gap: 10px; }
.brand-title { display: flex; align-items: center; gap: 12px; }
.sidebar a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 6px; }
.sidebar a:hover { background: var(--row-hover); }
.sidebar a.active { background: var(--accent); color: var(--accent-text); }
.spacer { flex: 1; }
.whoami { color: var(--muted); padding: 8px 10px; }
main { padding: 24px; overflow-x: auto; }
h2 { margin: 0 0 16px; font-size: 20px; }

.toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar input[type=search] { min-width: 220px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.stat .num { font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat .label { color: var(--muted); }

table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tbody tr:hover { background: var(--row-hover); }
td.num { font-variant-numeric: tabular-nums; }
.mono { font-family: ui-monospace, Consolas, monospace; }
.muted { color: var(--muted); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; background: var(--muted); }
.dot.on { background: var(--ok); }
.actions { white-space: nowrap; text-align: right; }

input, select, textarea { font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 7px 9px; width: 100%; }
label { display: grid; gap: 4px; color: var(--muted); }
label.check { display: flex; align-items: center; gap: 8px; color: var(--text); }
label.check input { width: auto; }
button { font: inherit; border: 1px solid var(--border); background: var(--panel); color: var(--text); padding: 7px 12px; border-radius: 6px; cursor: pointer; }
button:hover { background: var(--row-hover); }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.danger { color: var(--bad); }
button.ghost { border-color: transparent; text-align: left; }
.error { color: var(--bad); min-height: 1em; margin: 0; }
.tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.tabs button.active { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

dialog { border: 1px solid var(--border); border-radius: 10px; background: var(--panel); color: var(--text); padding: 0; width: min(520px, calc(100vw - 32px)); }
dialog::backdrop { background: rgb(0 0 0 / .4); }
#dialog-form { padding: 20px; display: grid; gap: 12px; }
#dialog-form h3 { margin: 0; }
.dialog-buttons { display: flex; justify-content: flex-end; gap: 8px; }
.kv { display: grid; grid-template-columns: 1fr 110px 32px; gap: 6px; align-items: center; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); }
  .spacer, .whoami { display: none; }
  main { padding: 16px; }
}