:root {
  --bg: #f3f6f8; --surface: #fff; --ink: #12222f; --muted: #5b6b78; --line: #d9e1e7;
  --accent: #0b7a75; --accent-ink: #fff; --nav: #13263a; --ok: #1d7a46; --ok-bg: #e2f3ea;
  --warn: #9a6200; --warn-bg: #fbeed2; --bad: #b3261e; --bad-bg: #fbe4e2;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1a24; --surface: #15263a; --ink: #e6eef4; --muted: #94a7b6; --line: #24394e;
          --accent: #3cc2b9; --accent-ink: #06231f; --nav: #0a1420; --ok: #6fd39b; --ok-bg: #163a29;
          --warn: #f0bb5a; --warn-bg: #3d2f12; --bad: #ff8f86; --bad-bg: #40201d; color-scheme: dark; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--sans); }
.wrap { max-width: 860px; margin-inline: auto; padding-inline: 16px; }
main.wrap { padding-block: 20px 56px; }
.top { background: var(--nav); color: #eef4f8; }
.bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-block: 12px; }
.brand { color: #fff; font-weight: 600; text-decoration: none; }
.brand span { color: #9fb6c8; font-weight: 400; }
.top nav { display: flex; gap: 14px; flex: 1; }
.top a { color: #cfe0ec; }
.userbar { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #cfe0ec; }
h1 { font-size: 24px; margin: 4px 0; text-wrap: balance; }
h2 { font-size: 17px; margin: 0 0 8px; }
a { color: var(--accent); }
.muted { color: var(--muted); font-size: 13px; }
.mono { font-family: var(--mono); font-size: 13px; }
.sr { position: absolute; left: -9999px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 16px; margin-block: 12px; }
.card.narrow { max-width: 380px; margin-inline: auto; margin-top: 48px; }
label { display: block; font-size: 13px; color: var(--muted); margin-top: 10px; }
input, select { width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 4px; padding: 9px 10px; min-height: 40px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn { font: inherit; font-weight: 600; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 4px;
  padding: 9px 16px; min-height: 40px; cursor: pointer; margin-top: 14px; }
.btn.ghost { background: none; color: var(--accent); border: 1px solid var(--accent); margin-top: 0; }
button.link { background: none; border: 0; color: #cfe0ec; text-decoration: underline; cursor: pointer; font: inherit; }
.search { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 12px 4px; }
.search input { flex: 1 1 240px; width: auto; }
.search .btn { margin-top: 0; }
.list { list-style: none; padding: 0; margin: 12px 0; display: flex; flex-direction: column; gap: 8px; }
.row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; padding: 12px 14px; text-decoration: none;
  color: inherit; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; }
.row.static { align-items: center; }
.row:hover { border-color: var(--accent); }
.who, .side { display: flex; flex-direction: column; gap: 2px; min-width: 0; overflow-wrap: anywhere; }
.side { align-items: flex-end; }
.chip { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; padding: 2px 8px; border-radius: 3px;
  background: var(--line); color: var(--ink); width: fit-content; }
.chip.in_warranty, .chip.ok { background: var(--ok-bg); color: var(--ok); }
.chip.off, .chip.expired { background: var(--bad-bg); color: var(--bad); }
.banner { padding: 8px 12px; border-radius: 4px; background: var(--line); }
.banner.in_warranty { background: var(--ok-bg); color: var(--ok); }
.banner.expired { background: var(--bad-bg); color: var(--bad); }
.tabs { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-block: 14px 0; }
dl { display: grid; grid-template-columns: minmax(120px, 200px) 1fr; gap: 6px 14px; margin: 0; }
dt { color: var(--muted); font-size: 13px; }
dd { margin: 0; overflow-wrap: anywhere; }
.reveal { margin-top: 12px; }
.secret { margin-top: 10px; padding: 10px; background: var(--warn-bg); border-radius: 4px; }
.notice { background: var(--ok-bg); color: var(--ok); padding: 8px 12px; border-radius: 4px; }
.error { background: var(--bad-bg); color: var(--bad); padding: 8px 12px; border-radius: 4px; }
.empty { border: 1px dashed var(--line); border-radius: 6px; padding: 26px; text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--ink); font-size: 16px; }
.top nav { flex-wrap: wrap; }
.card.wide { max-width: 520px; }
.steps { padding-left: 20px; }
.steps li { margin-bottom: 14px; }
.qr { background: #fff; display: inline-block; padding: 6px; border-radius: 4px; margin-block: 8px; }
.qr svg { display: block; max-width: 100%; height: auto; }
.key { word-break: break-all; font-size: 15px; }
.codes { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 6px 14px; font-size: 16px; }
.tally { list-style: none; padding: 0; margin: 0 0 8px; display: flex; flex-wrap: wrap; gap: 8px 24px; }
.tally strong { font-size: 22px; margin-right: 6px; }
a.btn { display: inline-block; text-decoration: none; padding-top: 9px; }
.big { font-size: 26px; font-weight: 600; margin: 4px 0; }
.grid { display: grid; grid-template-columns: 1fr; gap: 0; }
.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 13px; white-space: nowrap; }
@media (max-width: 520px) { dl { grid-template-columns: 1fr; } dt { margin-top: 6px; } .side { align-items: flex-start; } }