:root {
  --bg: #f7f7f4;
  --card: #ffffff;
  --ink: #1d1f1c;
  --muted: #5d625a;
  --line: #e2e3dd;
  --brand: #1f6f50;
  --brand-ink: #ffffff;
  --soft: #e8f2ec;
  --warn: #9a3b1b;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141614;
    --card: #1d201d;
    --ink: #eceee9;
    --muted: #a3a89f;
    --line: #2f332e;
    --brand: #4fb38a;
    --brand-ink: #0d1a14;
    --soft: #1f2f27;
    --warn: #f08a63;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--brand); }
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; padding-top: 12px; padding-bottom: 12px; }
.logo { font-weight: 700; text-decoration: none; color: var(--ink); margin-right: auto; }
.logo span { color: var(--brand); }
nav a { text-decoration: none; color: var(--muted); font-size: 15px; }
nav a.active, nav a:hover { color: var(--ink); }
nav { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
main { padding: 28px 0 60px; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 28px 0 10px; }
.lede { color: var(--muted); font-size: 18px; margin: 0 0 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.btn {
  display: inline-block;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: var(--brand-ink);
  padding: 9px 16px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.btn.ghost { background: transparent; color: var(--brand); }
.btn.small { padding: 5px 12px; font-size: 14px; }
.btn.danger { background: transparent; color: var(--warn); border-color: var(--warn); }
.btn:disabled { opacity: .5; cursor: default; }
label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
input, select, textarea {
  width: 100%;
  font: inherit;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
}
textarea { min-height: 80px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.row > * { flex: 1 1 160px; }
.tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--brand);
  margin: 2px 4px 2px 0;
}
.muted { color: var(--muted); }
.small { font-size: 14px; }
.notice { padding: 12px 14px; border-radius: 8px; background: var(--soft); margin: 12px 0; }
.notice.error { background: transparent; border: 1px solid var(--warn); color: var(--warn); }
dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }
.stage-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 16px; }
.stage-tabs button {
  font: inherit; font-size: 14px; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer;
}
.stage-tabs button.on { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.entry h3 { margin: 0 0 4px; font-size: 18px; }
.entry .actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.copy { cursor: pointer; text-decoration: underline dotted; }
.qr-box { display: grid; place-items: center; background: #fff; border-radius: 8px; padding: 12px; }
.qr-box img, .qr-box svg { width: 220px; height: 220px; }
footer.site { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: 14px; }
.hidden { display: none !important; }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink); width: min(560px, 92vw); padding: 20px; }
dialog::backdrop { background: rgba(0,0,0,.45); }