@font-face {
  font-family: "Atkinson Hyperlegible Next";
  src: url("/fonts/atkinson-hyperlegible-next.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light dark;
  --ground: #f2f5f4;
  --surface: #ffffff;
  --ink: #122d3a;
  --muted: #3f5660;
  --line: #d2dcd8;
  --accent: #1f6b4e;
  --mint: #c3edda;
  --band: #122d3a;
  --band-ink: #e8f1ee;
  --band-muted: #b8cdc7;
  --font: "Atkinson Hyperlegible Next", system-ui, -apple-system, sans-serif;
  --measure: 66ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0e222c;
    --surface: #15303c;
    --ink: #e8f1ee;
    --muted: #a9bfc0;
    --line: #2b4652;
    --accent: #8fd9b8;
    --band: #c3edda;
    --band-ink: #122d3a;
    --band-muted: #2f4b52;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--font);
  font-variant-numeric: lining-nums;
  accent-color: var(--accent);
}

::selection { background: var(--mint); color: #122d3a; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}
a:hover { text-decoration-thickness: 2px; }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.wrap { width: min(100% - 2.5rem, 70rem); margin-inline: auto; }

.skip {
  position: absolute;
  left: 1rem;
  top: -5rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  color: var(--ink);
  z-index: 2;
}
.skip:focus { top: 0.75rem; }

/* Site header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 44px;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.1875rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.site-nav { display: flex; gap: 0.5rem; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9375rem;
}
.site-nav a:hover { text-decoration: underline; }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; }

/* Landing: hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
  padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2.5rem, 6vw, 4rem);
}
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 5.6vw, 4.25rem);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-wrap: balance;
  max-width: 14ch;
}
.lede {
  margin: 0 0 2rem;
  max-width: 34rem;
  font-size: 1.1875rem;
  color: var(--muted);
}
.action {
  display: inline-flex;
  align-items: center;
  min-height: 52px;
  padding: 0.875rem 1.5rem;
  border-radius: 10px;
  background: var(--ink);
  color: var(--ground);
  font-weight: 700;
  text-decoration: none;
}
.action:hover { background: var(--accent); color: var(--ground); }
.fine { margin: 0.875rem 0 0; font-size: 0.9375rem; color: var(--muted); }
.capture { margin: 0; justify-self: center; }
.capture img {
  display: block;
  width: min(100%, 18.5rem);
  height: auto;
  border-radius: 2.25rem;
  box-shadow: 0 1.5rem 3rem -1rem rgb(18 45 58 / 0.28);
}
.capture figcaption { margin-top: 0.875rem; font-size: 0.875rem; color: var(--muted); text-align: center; }

/* Landing: status record, the page's one typographic moment */
.record {
  padding-block: clamp(2.5rem, 6vw, 4rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.record-status .tick { stroke: var(--accent); }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.record-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  color: var(--muted);
}
.record-meta .receipt { font-variant-numeric: tabular-nums; letter-spacing: 0.04em; color: var(--ink); }
.record-status {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6.4vw, 5.25rem);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.record-status svg { flex: none; width: 0.82em; height: 0.82em; }
.record-previous { margin: 0; color: var(--muted); }
.record-note { margin: 1.5rem 0 0; max-width: var(--measure); font-size: 0.9375rem; color: var(--muted); }

/* Landing: steps */
.steps { padding-block: clamp(3rem, 7vw, 5rem); }
.steps h2, .local h2 {
  margin: 0 0 2rem;
  font-size: clamp(1.75rem, 3.2vw, 2.375rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.steps ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-bottom: 1rem;
  border: 2px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-weight: 700;
}
.steps h3 { margin: 0 0 0.375rem; font-size: 1.1875rem; }
.steps p { margin: 0; color: var(--muted); }

/* Landing: local-first band */
.local {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-bottom: clamp(3rem, 7vw, 5rem);
  padding: clamp(2rem, 5vw, 3.25rem);
  border-radius: 16px;
  background: var(--band);
  color: var(--band-ink);
}
.local h2 { margin: 0; }
.local p { margin: 0 0 1rem; }
.local ul { margin: 0 0 1.25rem; padding-left: 1.2rem; }
.local li { margin-bottom: 0.375rem; }
.local a { color: var(--band-ink); font-weight: 700; }

/* Reading pages */
.doc { padding-block: clamp(2.5rem, 6vw, 4rem) clamp(3rem, 7vw, 5rem); max-width: var(--measure); }
.doc h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.doc .updated { margin: 0 0 2.5rem; color: var(--muted); }
.doc h2 { margin: 2.5rem 0 0.75rem; font-size: 1.375rem; line-height: 1.25; letter-spacing: -0.01em; }
.doc p, .doc li { line-height: 1.7; }
.doc ol, .doc ul { padding-left: 1.4rem; }
.doc li { margin-bottom: 0.375rem; }

/* Footer */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem 2.5rem;
  padding-block: 1.75rem 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
  color: var(--muted);
}
.site-footer p { margin: 0; max-width: 46rem; }
.site-footer a { display: inline-flex; align-items: center; min-height: 44px; }

@media (max-width: 760px) {
  .site-header { padding-block: 1rem; }
  .site-nav a { padding-inline: 0.5rem; }
  .hero { grid-template-columns: 1fr; }
  .hero h1 { max-width: none; }
  .capture img { width: min(100%, 16rem); }
  .record-status svg { display: none; }
  .steps ol { grid-template-columns: 1fr; }
  .local { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: no-preference) {
  .action, .site-nav a { transition: background-color 0.18s cubic-bezier(0.16, 1, 0.3, 1), color 0.18s; }
}