:root {
  --brand: #0f3d3e;
  --brand-2: #1f6e5c;
  --accent: #1f6e5c;
  --bg: #f6fbfa;
  --card: #ffffff;
  --text: #16302f;
  --muted: #5b7472;
  --line: #d6e6e2;
  --ok: #1f8a4c;
  --bad: #c0392b;
  --warn: #b7791f;
  --rec: #e5484d;
  --chip: #eaf4f1;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c1a1a; --card: #122727; --text: #e3f1ee; --muted: #93b0ab; --line: #24413f; --chip: #1a3533; --accent: #6fd3b4;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.4; }
a { color: var(--accent); }
.top {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 14px 20px; background: var(--brand); color: #f6fbfa;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand h1 { margin: 0; font-size: 1.25rem; }
.sub { margin: 2px 0 0; font-size: .85rem; opacity: .85; }
.meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: .9rem; align-items: center; }
.conn { display: inline-flex; gap: 6px; align-items: center; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: #aaa; display: inline-block; }
.conn.live .dot { background: #3ddc84; }
.conn.poll .dot { background: #f5c542; }
.conn.down .dot { background: #ff6b6b; }
.banner { margin: 12px 20px 0; padding: 10px 14px; border-radius: 8px; font-size: .9rem; }
.banner.warn { background: #fff4db; color: #6b4a00; border: 1px solid #f0d58a; }
.banner.info { background: var(--chip); border: 1px solid var(--line); }
main { padding: 16px 20px 28px; }
.empty { max-width: 680px; margin: 30px auto; background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 22px; }
.empty h2 { margin-top: 0; color: var(--accent); }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--brand-2);
  border-radius: 12px; padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; }
.card.offline { opacity: .6; border-left-color: #9aa9a7; filter: grayscale(.6); }
.card.recording { border-left-color: var(--rec); }
.card-head { display: flex; justify-content: space-between; gap: 8px; align-items: flex-start; }
.title { margin: 0; font-size: 1.1rem; color: var(--accent); word-break: break-word; }
.host { font-size: .8rem; color: var(--muted); }
.seen { font-size: .8rem; color: var(--muted); white-space: nowrap; }
.card.offline .seen { color: var(--bad); }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { display: inline-flex; gap: 4px; align-items: center; padding: 3px 8px; border-radius: 999px;
  background: var(--chip); font-size: .8rem; border: 1px solid var(--line); }
.badge.ok { border-color: #9fd8b5; }
.badge.ok::before, .badge.bad::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.badge.ok::before { background: var(--ok); }
.badge.bad::before { background: var(--bad); }
.badge.rec { background: var(--rec); color: #fff; border-color: var(--rec); font-weight: 600; }
.badge.session { background: var(--brand-2); color: #fff; border-color: var(--brand-2); }
.warns { display: flex; flex-wrap: wrap; gap: 6px; }
.warns:empty { display: none; }
.chip-warn { font-size: .75rem; padding: 2px 7px; border-radius: 6px; background: #fff4db; color: #6b4a00;
  border: 1px solid #f0d58a; }
.links { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.links[hidden] { display: none; }
.btn { display: inline-block; padding: 6px 12px; border-radius: 8px; background: var(--brand-2); color: #fff;
  text-decoration: none; font-size: .85rem; border: 1px solid var(--brand-2); cursor: pointer; }
.btn.ghost { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn.danger { background: var(--bad); border-color: var(--bad); }
.btn[hidden] { display: none; }
.hint { width: 100%; margin: 0; font-size: .75rem; color: var(--muted); }
.events summary { cursor: pointer; font-size: .85rem; color: var(--accent); }
.ev-list { list-style: none; margin: 6px 0 0; padding: 0; font-size: .8rem; max-height: 260px; overflow: auto; }
.ev-list li { display: flex; gap: 8px; padding: 3px 0; border-bottom: 1px dashed var(--line); }
.ev-time { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.fw { font-size: .72rem; color: var(--muted); }
.foot { text-align: center; font-size: .75rem; color: var(--muted); padding: 10px 0 20px; }
/* admin */
.admin main { overflow-x: auto; }
.admin table { border-collapse: collapse; width: 100%; background: var(--card); font-size: .82rem; margin-bottom: 18px; }
.admin th, .admin td { border: 1px solid var(--line); padding: 4px 6px; text-align: left; white-space: nowrap; }
.admin th { background: var(--chip); }
.admin h2 { font-size: 1rem; margin: 18px 0 6px; color: var(--accent); }
.admin .kv { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: .85rem; }
.on { color: var(--ok); font-weight: 600; }
.off { color: var(--muted); }