:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #65676b;
  --border: #dddfe2;
  --accent: #2563eb;
  --ok: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
  --bar: #e5e7eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --card: #1b1e24;
    --text: #e6e6e6;
    --muted: #9aa0a6;
    --border: #2d3139;
    --accent: #60a5fa;
    --bar: #2d3139;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", "Leelawadee UI", sans-serif;
}
main { max-width: 640px; margin: 0 auto; padding: 16px; }
header { display: flex; align-items: center; justify-content: space-between; }
h1 { font-size: 1.4rem; margin: 8px 0 16px; }
h2 { font-size: 1rem; color: var(--muted); margin: 24px 0 8px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}
form.card { display: flex; flex-direction: column; gap: 10px; }
input {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}
button {
  font: inherit;
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:disabled { opacity: .5; cursor: default; }
button.stop { background: var(--bad); }
button.ghost { background: transparent; color: var(--accent); padding: 6px 8px; }
.error { color: var(--bad); margin: 8px 0 0; }
.gpu-name { font-weight: 600; margin-bottom: 8px; }
.metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 16px; }
.metric small { color: var(--muted); display: block; }
.metric b { font-variant-numeric: tabular-nums; }
.bar { height: 6px; background: var(--bar); border-radius: 3px; overflow: hidden; margin-top: 4px; }
.bar > span { display: block; height: 100%; width: 0; background: var(--accent); }
.app { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.app-name { font-weight: 600; }
.app-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
a.open {
  padding: 10px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
}
.app-status { font-size: .9rem; color: var(--muted); }
.app-status.running { color: var(--ok); }
.app-status.error { color: var(--bad); }
.app-status.stopping, .app-status.not_configured { color: var(--warn); }
.app-detail { font-size: .85rem; color: var(--bad); margin-top: 4px; word-break: break-word; }