:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --border: #e2e5ea;
  --text: #1c2330;
  --muted: #667085;
  --accent: #2f5bd3;
  --ok: #1f9d55;
  --warn: #d98a00;
  --crit: #d64545;
  --unknown: #98a2b3;
  --empty: #e4e7ec;
  --ok-bg: #e8f6ee;
  --warn-bg: #fdf3e1;
  --crit-bg: #fbeaea;
  --unknown-bg: #eef0f3;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1218;
    --surface: #171b23;
    --surface-2: #1e232d;
    --border: #2a303c;
    --text: #e6e9ef;
    --muted: #98a2b3;
    --accent: #7c9cff;
    --ok: #3fbf74;
    --warn: #f0a92e;
    --crit: #f06464;
    --unknown: #6b7485;
    --empty: #2a303c;
    --ok-bg: #16281e;
    --warn-bg: #2d2413;
    --crit-bg: #301a1a;
    --unknown-bg: #22262e;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
.wrap { max-width: 880px; margin: 0 auto; padding: 32px 16px 48px; }
.wrap.wide { max-width: 1280px; }
h1 { font-size: 24px; margin: 0 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 16px; margin: 32px 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* status colors */
.s-ok, .p-operational { --c: var(--ok); --cbg: var(--ok-bg); }
.s-warn, .p-degraded { --c: var(--warn); --cbg: var(--warn-bg); }
.s-crit, .p-outage { --c: var(--crit); --cbg: var(--crit-bg); }
.s-unknown, .p-unknown { --c: var(--unknown); --cbg: var(--unknown-bg); }
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--c); flex: none; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 10px; border-radius: 999px;
  background: var(--cbg); color: var(--c);
  font-size: 13px; font-weight: 600; white-space: nowrap;
}

/* public page */
.banner {
  display: flex; align-items: center; gap: 12px;
  margin: 24px 0; padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--cbg); color: var(--c);
  font-weight: 600; font-size: 17px;
}
.banner .dot { width: 14px; height: 14px; }
.component { padding: 18px 20px; border-top: 1px solid var(--border); }
.component:first-child { border-top: 0; }
.component-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.component-name { font-weight: 600; }
.bars { display: flex; gap: 2px; margin-top: 12px; height: 32px; }
.bars span { flex: 1; min-width: 2px; border-radius: 2px; background: var(--c, var(--empty)); }
.bars span.empty { background: var(--empty); }
.bars-legend { display: flex; justify-content: space-between; margin-top: 6px; font-size: 12px; color: var(--muted); }
footer { margin-top: 24px; font-size: 13px; color: var(--muted); text-align: center; }

/* admin */
.topbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 9px 12px; text-align: left; vertical-align: top; border-top: 1px solid var(--border); }
th { font-size: 12px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; border-top: 0; }
td.msg { max-width: 520px; word-break: break-word; }
td.nowrap, th.nowrap { white-space: nowrap; }
.name { font-weight: 600; }
.spark { display: flex; gap: 1px; height: 18px; align-items: stretch; }
.spark span { width: 3px; border-radius: 1px; background: var(--c); }
details.group { margin-top: 12px; }
details.group > summary {
  cursor: pointer; list-style: none;
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; font-weight: 600;
}
details.group > summary::-webkit-details-marker { display: none; }
details.group > summary .muted { font-weight: 400; }
details.group[open] > summary { border-bottom: 1px solid var(--border); }
.tag {
  display: inline-block; padding: 0 6px; border-radius: 4px;
  background: var(--surface-2); color: var(--muted); font-size: 12px;
}
form.inline { display: inline-flex; gap: 6px; align-items: center; }
form.silence { display: flex; flex-wrap: wrap; gap: 8px; padding: 16px; }
input, select, button {
  font: inherit; font-size: 14px;
  padding: 6px 10px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
input[name=pattern] { flex: 1 1 260px; font-family: var(--mono); font-size: 13px; }
input[name=reason] { flex: 1 1 200px; }
button { cursor: pointer; background: var(--surface-2); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.small { padding: 2px 8px; font-size: 12px; }
.empty-state { padding: 16px; color: var(--muted); }
@media (max-width: 640px) {
  .wrap { padding: 20px 16px 32px; }
  .hide-sm { display: none; }
  td.msg { max-width: none; }
}

/* history */
h2 a.small, h2 .small { font-size: 13px; font-weight: 400; margin-left: 8px; }
h3 { font-size: 14px; margin: 20px 0 8px; }
a.name { font-weight: 600; color: var(--text); }
a.name:hover { color: var(--accent); }
td.num, th.num { text-align: right; }
.uptime { color: var(--c); font-weight: 600; font-variant-numeric: tabular-nums; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stat { padding: 14px 16px; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--c); font-variant-numeric: tabular-nums; }
.card.pad { padding: 16px; }
.hbars { display: flex; gap: 1px; height: 36px; }
.hbars span { flex: 1; min-width: 1px; border-radius: 1px; background: var(--c); }
.hbars span.empty { background: var(--empty); }
.chart { width: 100%; height: 140px; display: block; background: var(--surface-2); border-radius: 6px; }
.chart polyline { fill: none; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.chart .line-avg { stroke: var(--accent); }
.chart .line-max { stroke: var(--warn); opacity: 0.6; }
.legend-avg { color: var(--accent); }
.legend-max { color: var(--warn); }
p.msg { margin: 8px 0 0; }

/* collapsible sections, sorting, filters */
details.section { margin-top: 28px; }
details.section > summary { list-style: none; cursor: pointer; display: flex; align-items: center; }
details.section > summary::-webkit-details-marker { display: none; }
details.section > summary h2 { margin: 0 0 12px; display: flex; align-items: center; gap: 8px; }
details.section > summary h2::before {
  content: ""; width: 7px; height: 7px; margin-right: 2px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg); transition: transform .15s;
}
details.section[open] > summary h2::before { transform: rotate(45deg); }
details.section:not([open]) > summary h2 { margin-bottom: 0; }
.count {
  font-size: 12px; font-weight: 600; color: var(--muted);
  background: var(--surface-2); border-radius: 999px; padding: 0 8px;
}
.section-tools { font-size: 13px; color: var(--muted); margin: -4px 0 4px; }
button.link {
  background: none; border: 0; padding: 0; color: var(--accent);
  font: inherit; cursor: pointer;
}
button.link:hover { text-decoration: underline; }
button.chip { border: 1px solid transparent; cursor: pointer; font: inherit; font-size: 13px; font-weight: 600; }
button.chip:hover { border-color: var(--c); }
button.chip[aria-pressed="true"] { border-color: var(--c); box-shadow: 0 0 0 1px var(--c) inset; }
button.chip.dimmed { opacity: 0.45; }
.filter-bar {
  margin-top: 16px; padding: 8px 12px; font-size: 13px;
  background: var(--surface-2); border-radius: 8px; color: var(--muted);
}
.filter-bar strong { color: var(--text); }
th.sort { cursor: pointer; user-select: none; white-space: nowrap; }
th.sort:hover, th.sort:focus-visible { color: var(--text); outline: none; }
th.sort::after { content: " ↕"; opacity: 0.35; }
th.sort[aria-sort="ascending"]::after { content: " ↑"; opacity: 1; }
th.sort[aria-sort="descending"]::after { content: " ↓"; opacity: 1; }
#targets-empty { margin-top: 12px; }