:root {
  color-scheme: light dark;
  --bg: #f5f6f8; --card: #fff; --text: #1a1d21; --muted: #5f6772; --line: #dde1e6;
  --ok: #1a7f4b; --amber: #b26a00; --red: #c62828; --accent: #1f5fbf;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15171a; --card: #1e2125; --text: #e8eaed; --muted: #9aa3ad; --line: #33383f; --ok: #4cc38a; --amber: #f0a840; --red: #ff6b6b; --accent: #7aa7ff; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .7rem 1rem; background: var(--card); border-bottom: 1px solid var(--line); }
header .who { color: var(--muted); }
main { max-width: 62rem; margin: 0 auto; padding: 1rem; }
main.centre { max-width: 26rem; margin-top: 18vh; text-align: center; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1rem; margin: 0 0 .6rem; }
.muted { color: var(--muted); font-size: .87rem; margin: .4rem 0 0; }
.warn { color: var(--amber); }
.cards { display: grid; grid-template-columns: 2fr 1fr; gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 1rem; margin-bottom: 1rem; }
.card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.gauge { height: 14px; border-radius: 7px; background: var(--line); overflow: hidden; }
.gauge-fill { height: 100%; min-width: 2px; }
.level-ok { background: var(--ok); } .level-amber { background: var(--amber); } .level-red { background: var(--red); } .level-unknown { background: var(--muted); }
.gauge-label { margin: .5rem 0; font-weight: 600; }
.facts { display: flex; flex-wrap: wrap; gap: .4rem; margin: .4rem 0 0; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; border: 1px solid var(--line); font-size: .82rem; white-space: nowrap; }
.badge.ok, .state-sending { color: var(--ok); border-color: var(--ok); }
.badge.amber, .state-paused-all { color: var(--amber); border-color: var(--amber); }
.badge.red, .state-paused { color: var(--red); border-color: var(--red); }
.state-disabled { color: var(--muted); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .5rem .6rem; border-top: 1px solid var(--line); vertical-align: top; }
thead th { border-top: 0; color: var(--muted); font-weight: 500; font-size: .85rem; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.detail { color: var(--muted); font-size: .9rem; margin-top: .25rem; }
.action { text-align: right; white-space: nowrap; }
button { font: inherit; padding: .35rem .8rem; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--text); cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { background: var(--red); border-color: var(--red); color: #fff; }
button.danger-outline { color: var(--red); }
.banner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .7rem 1rem; margin-bottom: 1rem; border-radius: 8px; border: 1px solid var(--red); color: var(--red); background: var(--card); font-weight: 600; }
.notice { padding: .6rem 1rem; margin: 0 0 1rem; border-radius: 8px; border: 1px solid var(--accent); background: var(--card); }
.error { color: var(--red); min-height: 1.2em; margin: .4rem 0; }
dialog { width: min(30rem, calc(100vw - 2rem)); border: 1px solid var(--line); border-radius: 10px; padding: 1.2rem; background: var(--card); color: var(--text); }
dialog::backdrop { background: rgb(0 0 0 / .45); }
dialog label { display: block; margin-top: .5rem; }
dialog textarea { width: 100%; font: inherit; padding: .5rem; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); color: var(--text); margin-top: .3rem; }
dialog fieldset { border: 1px solid var(--line); border-radius: 6px; margin: .6rem 0 0; }
.note { color: var(--muted); font-size: .9rem; margin: .6rem 0 0; }
.note.warn { color: var(--amber); }
.actions { display: flex; justify-content: flex-end; gap: .5rem; margin-top: .8rem; }
@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; gap: 0; }
  main { padding: .6rem; }
  .card { padding: .8rem .7rem; }
  th, td { padding: .45rem .25rem; }
  .action button { padding: .3rem .5rem; }
}