:root {
  --stone: #23282b;
  --stone-2: #2d3437;
  --rule: #3c4548;
  --vellum: #e9e4d8;
  --dust: #9ba29e;
  --verdigris: #7fb3a5;
  --copper: #b8743f;
  --copper-deep: #965c2f;
  --alert: #e2a08b;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, "URW Palladio L", Georgia, serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--stone);
  color: var(--vellum);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.6;
}

a { color: var(--verdigris); text-underline-offset: 3px; }
a:hover { color: var(--vellum); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--verdigris);
  outline-offset: 3px;
}

.wrap { width: min(1100px, 100% - 44px); margin: 0 auto; }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 0;
}
.mark {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--vellum);
  text-decoration: none;
  font-size: 19px;
}
.mark svg { width: 30px; height: 30px; }
.top nav { display: flex; gap: 26px; font-size: 16px; }
.top nav a { color: var(--dust); text-decoration: none; }
.top nav a:hover, .top nav a[aria-current] { color: var(--vellum); }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  grid-template-areas:
    "intro gate"
    "records gate";
  column-gap: 64px;
  padding: 36px 0 80px;
}
.intro { grid-area: intro; }
.records { grid-area: records; }
.gate { grid-area: gate; }

h1.title {
  margin: 0;
  font-size: clamp(56px, 9vw, 112px);
  line-height: 0.95;
  font-weight: 400;
  letter-spacing: -0.015em;
}
.lead { max-width: 33em; margin: 22px 0 48px; color: var(--dust); font-size: 19px; }

.ledger { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums lining-nums; }
.ledger caption {
  text-align: left;
  font-size: 22px;
  padding-bottom: 12px;
}
.ledger th {
  text-align: left;
  font-weight: 400;
  font-size: 15px;
  color: var(--dust);
  padding: 0 12px 10px 0;
  border-bottom: 1px solid var(--rule);
}
.ledger td {
  padding: 14px 12px 14px 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: baseline;
}
.ledger td.no { font-size: 30px; line-height: 1; color: var(--copper); width: 5.5ch; }
.ledger td.size { text-align: right; padding-right: 0; color: var(--dust); white-space: nowrap; }
.ledger th.size { text-align: right; padding-right: 0; }
.ledger-note { margin: 14px 0 0; font-size: 15px; color: var(--dust); }

.gate {
  align-self: start;
  position: sticky;
  top: 28px;
  background: var(--stone-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px;
}
.gate h2 { margin: 0 0 6px; font-size: 24px; font-weight: 400; }
.gate .hint { margin: 0 0 20px; font-size: 15px; color: var(--dust); }
label { display: block; font-size: 15px; color: var(--dust); margin: 16px 0 6px; }
input {
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  font-size: 17px;
  color: var(--vellum);
  background: var(--stone);
  border: 1px solid var(--rule);
  border-radius: 3px;
}
input:focus { border-color: var(--verdigris); }
button {
  width: 100%;
  margin-top: 22px;
  padding: 12px;
  font: inherit;
  font-size: 17px;
  color: #fff7ee;
  background: var(--copper);
  border: 0;
  border-radius: 3px;
  cursor: pointer;
}
button:hover { background: var(--copper-deep); }
button[disabled] { opacity: 0.7; cursor: progress; }
.error {
  margin: 0 0 6px;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--alert);
  border-left: 3px solid var(--alert);
  background: rgba(226, 160, 139, 0.08);
}

.page { max-width: 40em; padding: 30px 0 90px; }
.page h1 { font-size: 52px; font-weight: 400; line-height: 1.05; margin: 0 0 24px; }
.page h2 { font-size: 24px; font-weight: 400; margin: 38px 0 8px; color: var(--copper); }
.page p { line-height: 1.7; }

.foot {
  padding: 28px 0 44px;
  border-top: 1px solid var(--rule);
  font-size: 15px;
  color: var(--dust);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
}
.foot a { color: var(--dust); }

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-areas: "intro" "gate" "records";
    row-gap: 36px;
  }
  .lead { margin-bottom: 0; }
  .gate { position: static; }
  .ledger td.no { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}