:root {
  --bg: #f6f5f1;
  --surface: #ffffff;
  --border: #dedad0;
  --text: #1d1f23;
  --muted: #6b6e76;
  --link: #1f5fbf;
  --ok: #1d7f45;
  --ok-bg: #e3f3e8;
  --warn: #9a5b00;
  --warn-bg: #fbf0dc;
  --down: #b3261e;
  --down-bg: #fbe4e2;
  --pending: #6b6e76;
  --pending-bg: #eceae4;
  --websdr: #3b4fb8;
  --websdr-bg: #e5e8fa;
  --app: #7a3fa8;
  --app-bg: #f1e7f8;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418;
    --surface: #1b1e24;
    --border: #2e333c;
    --text: #e6e7ea;
    --muted: #979ba5;
    --link: #8ab4ff;
    --ok: #6fd394;
    --ok-bg: #173323;
    --warn: #f0b659;
    --warn-bg: #3a2a10;
    --down: #ff8a80;
    --down-bg: #3d1a18;
    --pending: #979ba5;
    --pending-bg: #262a31;
    --websdr: #a9b6ff;
    --websdr-bg: #232a4d;
    --app: #d3a8f5;
    --app-bg: #33223f;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 76rem;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

a { color: var(--link); }
h1, h2 { line-height: 1.2; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

header.page {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}
header.page h1 { margin: 0 0 .25rem; font-size: 1.9rem; letter-spacing: -.01em; }
.lede { margin: 0; color: var(--muted); max-width: 42rem; }

.controls { display: flex; gap: .75rem; align-items: center; }
button {
  font: inherit;
  padding: .45rem .9rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--link); }
button:disabled { opacity: .55; cursor: progress; }

section.you {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .9rem 1rem;
  margin-bottom: 1.25rem;
}
section.you h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 .5rem; }
.families { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
.family { display: flex; gap: .5rem; align-items: baseline; }
.family-name { font-weight: 600; }
.family-addr { font-family: var(--mono); font-size: .9em; overflow-wrap: anywhere; }
.family.ok .family-addr { color: var(--ok); }
.family.fail .family-addr { color: var(--down); }
.family.pending .family-addr { color: var(--pending); }

.hosts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 34rem), 1fr));
  gap: 1rem;
}

article.host {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--pending);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  min-width: 0;
}
article.host.up { border-left-color: var(--ok); }
article.host.warn { border-left-color: var(--warn); }
article.host.down { border-left-color: var(--down); }

article.host > header {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
  justify-content: space-between;
}
article.host h2 { margin: 0; font-size: 1.15rem; display: flex; align-items: center; gap: .5rem; min-width: 0; }
article.host h2 a { color: inherit; text-decoration: none; overflow-wrap: anywhere; }
article.host h2 a:hover { text-decoration: underline; }

.dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--pending); flex: none; }
.dot.up { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.down { background: var(--down); }
.dot.pending { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) { .dot.pending { animation: none; } }

.summary { font-size: .85rem; font-weight: 600; padding: .1rem .55rem; border-radius: 999px; background: var(--pending-bg); color: var(--pending); }
.summary.up { background: var(--ok-bg); color: var(--ok); }
.summary.warn { background: var(--warn-bg); color: var(--warn); }
.summary.down { background: var(--down-bg); color: var(--down); }

.desc { margin: .35rem 0 .75rem; color: var(--muted); }

.mode { margin: 0 0 .75rem; }
.mode-line { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.mode-label { font-weight: 600; overflow-wrap: anywhere; }
.badge { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; padding: .1rem .5rem; border-radius: 4px; }
.badge.websdr { background: var(--websdr-bg); color: var(--websdr); }
.badge.application { background: var(--app-bg); color: var(--app); }
.badge.switching { background: var(--warn-bg); color: var(--warn); }
a.open { margin-left: auto; font-weight: 600; text-decoration: none; }
a.open:hover { text-decoration: underline; }
.receiver { margin: .35rem 0 0; }
.sdrs { margin: .25rem 0 0; padding-left: 1.2rem; }
.via { margin: .25rem 0 0; font-size: .8rem; }

.alert {
  background: var(--down-bg);
  color: var(--down);
  border-radius: 6px;
  padding: .5rem .75rem;
  margin: .5rem 0;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th, td { text-align: left; padding: .4rem .5rem; border-top: 1px solid var(--border); vertical-align: top; }
thead th { border-top: none; font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
thead th[title] { cursor: help; }
tbody th { font-weight: normal; }
a.addr { font-weight: 600; white-space: nowrap; }

td.cell { text-align: center; font-weight: 700; width: 3rem; }
td.cell.ok { color: var(--ok); }
td.cell.fail { color: var(--down); }
td.cell.unknown, td.cell.pending { color: var(--pending); }

td.verdict.up { color: var(--ok); }
td.verdict.down { color: var(--down); }
td.verdict.client, td.verdict.blocked { color: var(--warn); }
td.verdict.pending { color: var(--pending); }

footer { margin-top: 2rem; color: var(--muted); max-width: 52rem; }
footer h2 { font-size: 1rem; color: var(--text); }
footer dt { font-weight: 600; color: var(--text); margin-top: .5rem; }
footer dd { margin: .1rem 0 0; }

@media (max-width: 30rem) {
  th, td { padding: .35rem .3rem; }
  thead th { letter-spacing: 0; }
  td.cell { width: 2.2rem; }
}