:root {
  color-scheme: light dark;
  /* blush, light variant: warm rose on cream */
  --ground: #fff7f3;
  --card: #ffffff;
  --ink: #2a1a20;
  --ink-muted: #5a4048;
  --rose: #8c2f4a;
  --on-rose: #ffffff;
  --edge: #e8d3d8;
  --note-ground: #fdeef0;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* blush, dark variant: the same hues, inverted for a dim room */
    --ground: #1e1418;
    --card: #2a1d22;
    --ink: #f6e9ec;
    --ink-muted: #d7bdc4;
    --rose: #ffb3c4;
    --on-rose: #1e1418;
    --edge: #433036;
    --note-ground: #33232a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

.page {
  max-width: 34rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--ink-muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--edge);
  border-radius: 24px;
  padding: 1.25rem;
  margin: 0 0 1.25rem;
}

.card h2 {
  font-size: 1.25rem;
  margin: 0 0 0.25rem;
}

.audience {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--ink-muted);
  white-space: nowrap;
}

.description {
  margin: 0 0 1rem;
  color: var(--ink-muted);
}

.unavailable {
  margin: 0;
  padding: 0.875rem 1rem;
  background: var(--note-ground);
  border: 1px solid var(--edge);
  border-radius: 16px;
  color: var(--ink);
}

.facts {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 1rem;
  margin: 0 0 1rem;
}

.facts dt {
  color: var(--ink-muted);
}

.facts dd {
  margin: 0;
}

.notes {
  margin: 0 0 1rem;
}

a.download {
  display: block;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border-radius: 24px;
  background: var(--rose);
  color: var(--on-rose);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
}

a.download:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 2px;
}

.qr-block {
  margin: 1.25rem 0 0;
  text-align: center;
}

svg.qr {
  width: 200px;
  height: 200px;
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--edge);
  background: #ffffff;
  shape-rendering: crispEdges;
}

.qr-caption {
  margin: 0.5rem 0 0;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.checksum {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--edge);
}

.checksum h3 {
  font-size: 1rem;
  margin: 0 0 0.375rem;
}

.hash,
.url,
.code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

.hash {
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
}

.hint {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--ink-muted);
}

.note ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.note li {
  margin-bottom: 0.375rem;
}

footer {
  color: var(--ink-muted);
  font-size: 0.875rem;
}