:root {
  --ground: #F4F5F2;
  --surface: #FFFFFF;
  --border: #DCDFD8;
  --divider: #ECEEE9;
  --ink: #15171A;
  --muted: #5A6069;
  --link: #1D4ED8;

  --operational: #17784A; --operational-bg: #E5F3EB;
  --stale: #9A5B00;       --stale-bg: #FBF0DC;
  --degraded: #B42318;    --degraded-bg: #FBE6E3;
  --down: #8A1A12;        --down-bg: #FBE6E3;
  --unknown: #5A6069;     --unknown-bg: #ECEEE9;

  --sans: "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0F1113;
    --surface: #181B1F;
    --border: #2E343A;
    --divider: #23282D;
    --ink: #ECEEF0;
    --muted: #9AA1AB;
    --link: #8DB1FF;

    --operational: #5FD19A; --operational-bg: #12291D;
    --stale: #F0B45A;       --stale-bg: #33260F;
    --degraded: #FF9088;    --degraded-bg: #3A1916;
    --down: #FFA39B;        --down-bg: #45181B;
    --unknown: #9AA1AB;     --unknown-bg: #24282D;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 16px/1.45 var(--sans); }
a { color: var(--link); }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; }
pre { margin: 0; }
.mono { font-family: var(--mono); }

:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--surface); padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; top: 8px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 24px 16px 48px; }
.loading { color: var(--muted); }

/* ---------- status vocabulary ---------- */
.s-operational { --c: var(--operational); --bg: var(--operational-bg); }
.s-stale       { --c: var(--stale);       --bg: var(--stale-bg); }
.s-degraded    { --c: var(--degraded);    --bg: var(--degraded-bg); }
.s-down        { --c: var(--down);        --bg: var(--down-bg); }
.s-unknown     { --c: var(--unknown);     --bg: var(--unknown-bg); }

.dot { display: inline-block; flex: none; width: 10px; height: 10px; background: var(--c); }
.dot.s-operational { border-radius: 50%; }
.dot.s-stale { border-radius: 3px; }
.dot.s-degraded, .dot.s-down { transform: rotate(45deg) scale(.85); }
.dot.s-unknown { border-radius: 50%; background: transparent; border: 2px solid var(--c); }
.dot.lg { width: 14px; height: 14px; }

.pill { display: inline-flex; align-items: center; gap: 8px; padding: 4px 12px; border-radius: 999px; background: var(--bg); color: var(--c); font-size: 14px; font-weight: 600; white-space: nowrap; }
.pill.s-down { font-weight: 800; letter-spacing: .02em; text-transform: uppercase; }
.pill.lg { font-size: 18px; padding: 6px 16px; }

/* ---------- header ---------- */
.top { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.eyebrow { font-family: var(--mono); font-size: 13px; color: var(--muted); }
h1 { font-size: 30px; line-height: 1.15; margin: 2px 0 4px; }
.meta { color: var(--muted); font-size: 14px; }
.btn { min-height: 44px; padding: 0 18px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); cursor: pointer; display: inline-flex; align-items: center; gap: 8px; font-weight: 600; }
.btn:hover { border-color: var(--muted); }
.btn[disabled] { opacity: .6; cursor: default; }

/* ---------- banner ---------- */
.banner { background: var(--bg); color: var(--ink); border: 1px solid var(--c); border-left-width: 6px; border-radius: 10px; padding: 16px 18px; margin-bottom: 20px; }
.banner h2 { font-size: 20px; display: flex; align-items: center; gap: 10px; color: var(--c); }
.banner ul { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.banner li a { color: inherit; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 13px; }
.chip .dot { color: var(--c); }
.stale-note { margin-top: 10px; font-weight: 600; color: var(--stale); background: var(--stale-bg); padding: 8px 12px; border-radius: 8px; }

/* ---------- controls ---------- */
.controls { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { min-height: 44px; padding: 0 16px; border: 0; background: transparent; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--surface); font-weight: 600; }
.toggle { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; cursor: pointer; }
.toggle input { width: 20px; height: 20px; margin: 0; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 520px), 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; display: flex; flex-direction: column; min-width: 0; }
.card-head { padding: 16px 18px 12px; display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; }
.card-head h2 { font-size: 19px; line-height: 1.25; }
.card-head h2 a { color: inherit; text-decoration: none; }
.desc { color: var(--muted); font-size: 14px; margin-top: 2px; }
.card-links { padding: 0 18px 12px; display: flex; flex-wrap: wrap; gap: 4px 16px; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.card-links a { overflow-wrap: anywhere; }
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--divider); }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; padding: 9px 18px; border-bottom: 1px solid var(--divider); min-height: 44px; }
.row:last-child { border-bottom: 0; }
.tag { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: 0 5px; min-width: 4.4em; text-align: center; flex: none; }
.row-main { flex: 1 1 180px; min-width: 0; }
.row-name { font-size: 14px; }
.row-target { font-family: var(--mono); font-size: 12px; color: var(--muted); overflow-wrap: anywhere; }
.row-sum { font-family: var(--mono); font-size: 13px; color: var(--c); margin-left: auto; text-align: right; overflow-wrap: anywhere; }
.row.s-down .row-sum { font-weight: 800; }
.card-foot { margin-top: auto; padding: 10px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px; border-top: 1px solid var(--divider); font-size: 14px; color: var(--muted); min-height: 52px; }
.card-foot .why { color: var(--c); font-weight: 600; }
.card-foot a { min-height: 44px; display: inline-flex; align-items: center; font-weight: 600; }
.empty { padding: 32px; text-align: center; color: var(--muted); background: var(--surface); border: 1px dashed var(--border); border-radius: 12px; }

/* ---------- detail ---------- */
.back { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; margin-bottom: 8px; }
.d-head h1 { margin-bottom: 4px; }
.d-sub { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-top: 12px; }
.since { color: var(--muted); }
.diag { margin-top: 16px; padding: 14px 16px; background: var(--bg); border: 1px solid var(--c); border-left-width: 6px; border-radius: 10px; }
.diag h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--c); margin-bottom: 4px; }
.d-layout { display: grid; gap: 20px; margin-top: 20px; grid-template-columns: minmax(0, 1fr) 280px; align-items: start; }
.d-layout.solo { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 820px) { .d-layout { grid-template-columns: minmax(0, 1fr); } }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.panel + .panel { margin-top: 16px; }
.panel h2 { font-size: 16px; margin-bottom: 10px; }
.panel .rows { border-top: 0; margin: 0 -18px; }
.bars { display: grid; grid-template-columns: repeat(48, 1fr); gap: 2px; height: 36px; }
.bars span { background: var(--c); border-radius: 2px; }
.bars span.nodata { background: var(--divider); }
.bar-cap { margin-top: 8px; font-size: 13px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 18px 12px; width: 100%; }
@media (max-width: 560px) { .cmp { grid-template-columns: 1fr; } }
.cmp h4 { margin: 0 0 4px; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.cmp pre { font-family: var(--mono); font-size: 12px; background: var(--ground); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 240px; overflow: auto; }
.cmp .got pre { border-color: var(--c); }
dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; font-size: 14px; }
dt { color: var(--muted); }
dd { margin: 0; font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }
.warn { color: var(--degraded); font-weight: 600; }
.nf { padding: 24px 0; }