/* RoamGuard — instrument panel stylesheet.
   One file, repo root. System sans only. Tabular figures on every number. */

:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #10151c;
  --line: #262d38;
  --line-soft: #1c232d;
  --ink: #e6edf3;
  --ink-2: #b9c3ce;
  --dim: #8b949e;
  --safe: #3fb950;
  --warn: #d29922;
  --over: #f85149;
  --link: #6cb6ff;
  --track: #21262d;
  --shadow: none;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f2f4f7;
    --panel: #ffffff;
    --panel-2: #fbfcfd;
    --line: #d3dae2;
    --line-soft: #e4e9ee;
    --ink: #10151c;
    --ink-2: #333c47;
    --dim: #5b6672;
    --safe: #1a7f37;
    --warn: #9a6700;
    --over: #cf222e;
    --link: #0a5fc2;
    --track: #e6eaef;
    --shadow: 0 1px 0 rgba(16, 21, 28, .04);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

img, pre { max-width: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- status strip (this is the navigation) ---------- */

.strip {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}

.strip-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  padding: 0 4px;
}

.strip a,
.strip .cell {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  font-size: 11.5px;
  letter-spacing: .07em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--dim);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.strip a:hover { color: var(--ink); text-decoration: none; }

.strip a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--safe);
}

.strip .id {
  color: var(--ink);
  letter-spacing: .11em;
  padding-left: 8px;
  padding-right: 14px;
}

.strip .id .led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--safe);
  box-shadow: 0 0 0 2px rgba(63, 185, 80, .18);
  flex: none;
}

.strip .spacer { flex: 1 1 auto; min-width: 0; }

.strip .cell.meta {
  color: var(--dim);
  font-weight: 500;
  letter-spacing: .05em;
}

@media (max-width: 720px) {
  .strip .cell.meta { display: none; }
  .strip a, .strip .cell { padding: 6px 8px; font-size: 11px; }
}

/* ---------- layout ---------- */

main, .wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
}

.hero { padding: 34px 0 10px; }

h1 {
  font-size: clamp(25px, 6vw, 33px);
  line-height: 1.14;
  letter-spacing: -.02em;
  font-weight: 700;
  margin: 0 0 10px;
}

.lede {
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
  max-width: 62ch;
}

section { padding: 22px 0; border-top: 1px solid var(--line-soft); }
section:first-of-type { border-top: 0; }

h2 {
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

h3 {
  font-size: 15px;
  font-weight: 650;
  margin: 20px 0 6px;
  letter-spacing: -.005em;
}

p { margin: 0 0 11px; max-width: 72ch; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 11px; padding-left: 20px; max-width: 72ch; }
li { margin-bottom: 5px; }

.dim { color: var(--dim); }
.small { font-size: 13px; }
.sep { color: var(--line); }

/* ---------- panels ---------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  margin: 0 0 12px;
  box-shadow: var(--shadow);
}

.panel > :last-child { margin-bottom: 0; }

.panel-title {
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
  margin: 0 0 9px;
}

.note {
  border-left: 3px solid var(--warn);
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0 6px 6px 0;
  padding: 13px 15px;
  margin: 0 0 12px;
}

.note.hard { border-left-color: var(--over); }
.note.ok { border-left-color: var(--safe); }
.note > :last-child { margin-bottom: 0; }

/* ---------- the meter: RoamGuard's signature element ---------- */

.meter {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px 13px;
  margin: 0 0 10px;
}

.meter-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 2px 12px;
  margin-bottom: 8px;
}

.meter-label {
  font-size: 11px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
}

.meter-value {
  font-size: 15px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  max-width: 100%;
}

.meter-value.safe { color: var(--safe); }
.meter-value.warn { color: var(--warn); }
.meter-value.over { color: var(--over); }

.track {
  position: relative;
  height: 12px;
  border-radius: 2px;
  background: var(--track);
  border: 1px solid var(--line);
  overflow: hidden;
}

.track::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to right,
    transparent 0,
    transparent calc(10% - 1px),
    var(--bg) calc(10% - 1px),
    var(--bg) 10%
  );
  opacity: .55;
  pointer-events: none;
}

.fill { display: block; height: 100%; }
.fill.safe { background: var(--safe); }
.fill.warn { background: var(--warn); }
.fill.over { background: var(--over); }

.meter-caption {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--dim);
}

.meter-caption b { color: var(--ink-2); font-weight: 650; }

.scale {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--dim);
  margin-top: 4px;
}

/* ---------- tables ---------- */

.tw { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 12px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}

caption {
  caption-side: top;
  text-align: left;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
  padding-bottom: 7px;
}

th, td {
  text-align: left;
  padding: 7px 10px 7px 0;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}

thead th {
  font-size: 10.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--dim);
  font-weight: 700;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

tbody tr:last-child td { border-bottom: 0; }

td.n, th.n { text-align: right; padding-right: 0; white-space: nowrap; }
td.yes { color: var(--over); font-weight: 650; }
td.no { color: var(--dim); }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .88em;
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  padding: 0 4px;
}

/* ---------- key/value readout ---------- */

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0 16px; font-size: 13.5px; }
.kv dt { color: var(--dim); padding: 5px 0; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
.kv dd { margin: 0; padding: 5px 0; border-bottom: 1px solid var(--line-soft); }
.kv dt:last-of-type, .kv dd:last-of-type { border-bottom: 0; }

@media (max-width: 460px) {
  .kv { grid-template-columns: 1fr; gap: 0; }
  .kv dt { border-bottom: 0; padding-bottom: 0; }
}

/* ---------- Q&A ---------- */

.qa { margin: 0; }
.qa dt {
  font-weight: 650;
  margin: 18px 0 5px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}
.qa dt:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.qa dd { margin: 0; color: var(--ink-2); max-width: 72ch; }
.qa dd p { color: var(--ink-2); }

/* ---------- shots ---------- */

.shots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.shot { margin: 0; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--line);
}
.shot figcaption { font-size: 12px; color: var(--dim); margin-top: 6px; }

/* ---------- changelog ---------- */

.rel { border-top: 1px solid var(--line); padding-top: 16px; margin-top: 18px; }
.rel:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.rel-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.rel-ver { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.rel-tag {
  font-size: 10.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--safe);
  border: 1px solid var(--safe);
  border-radius: 3px;
  padding: 1px 6px;
}
.rel-date { font-size: 12.5px; color: var(--dim); }

/* ---------- footer ---------- */

footer {
  border-top: 1px solid var(--line);
  margin-top: 34px;
  padding: 18px 0 40px;
  font-size: 12.5px;
  color: var(--dim);
  background: var(--panel-2);
}

footer .wrap { padding: 0 16px; }
footer nav { margin-bottom: 10px; }
footer nav a { color: var(--dim); }
footer nav a:hover { color: var(--ink); }

.legal { margin: 0; }

/* ---------- misc ---------- */

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 8px;
  top: 8px;
  background: var(--panel);
  color: var(--ink);
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  z-index: 100;
}

hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }