/* Shared by the generated information pages. Tokens match the map page (index.html) and the iOS app. */
:root {
  --sheet: #e7eef1;
  --panel: #f2f2f7;
  --card: #ffffff;
  --ink: #1c1c1e;
  --muted: #636366;
  --rule: #e5e5ea;
  --accent: #30b0c7;
  --accent-text: #006679;
  --action: #17788c;
  --tint: rgba(48, 176, 199, 0.14);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --sheet: #101416;
    --panel: #1c1c1e;
    --card: #2c2c2e;
    --ink: #f2f2f7;
    --muted: #aeaeb2;
    --rule: #3a3a3c;
    --accent-text: #6ac4dc;
    --tint: rgba(106, 196, 220, 0.16);
      color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--sheet);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent-text); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, p, ol, ul { margin: 0; }
.top, main, footer { width: min(720px, calc(100% - 40px)); margin-inline: auto; }
main { flex: 1; padding-bottom: 32px; }

.top { padding-top: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font: 700 1.5rem/1 var(--sans); letter-spacing: -0.045em; text-decoration: none; }
.wordmark img { display: block; }

.hero { padding-block: clamp(48px, 10vw, 96px) clamp(32px, 6vw, 48px); }
.crumb { display: flex; gap: 8px; margin-bottom: 14px; color: var(--muted); font-size: 0.9rem; font-weight: 600; }
.crumb a { color: inherit; text-decoration: none; }
.crumb a:hover { text-decoration: underline; }
h1 { font: 700 clamp(2.5rem, 8vw, 4.25rem)/1.02 var(--sans); letter-spacing: -0.045em; text-wrap: balance; }
.lede { margin-top: 16px; max-width: 30em; color: var(--muted); font-size: clamp(1.1rem, 3vw, 1.3rem); line-height: 1.4; text-wrap: pretty; }
.action {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 28px;
  padding: 14px 22px; border-radius: 999px;
  background: var(--action); color: #fff; font-weight: 700; letter-spacing: -0.01em; text-decoration: none;
}
.action svg { width: 18px; height: 18px; flex: none; }
.action:hover { filter: brightness(1.08); }
.action:active { opacity: 0.7; }
.action:focus-visible { outline-color: var(--ink); }

.card { background: var(--card); border-radius: 28px; padding: 24px; }
main > .card, main > .tiles { margin-top: 12px; }

.steps { list-style: none; padding: 8px 24px; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 36px 1fr; gap: 16px; align-items: start; padding-block: 16px; }
.steps li + li { border-top: 1px solid var(--rule); }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 36px; height: 36px;
  border-radius: 999px; background: var(--tint); color: var(--accent-text); font-weight: 700; font-variant-numeric: tabular-nums;
}
.steps h2, .tile h2 { font: 700 1.05rem/1.3 var(--sans); letter-spacing: -0.02em; }
.steps p, .tile p { margin-top: 4px; color: var(--muted); font-size: 0.95rem; }
.steps li div { padding-top: 6px; }

.tiles { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 560px) {
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .tiles[data-count="3"] { grid-template-columns: repeat(3, 1fr); }
}
.tile { display: flex; flex-direction: column; align-items: flex-start; gap: 0; }
.icon { display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 16px; border-radius: 999px; background: var(--tint); color: var(--accent-text); }
.icon svg { width: 22px; height: 22px; }

.formula { text-align: center; padding-block: 32px; }
.equation { font: 700 clamp(1.6rem, 6vw, 2.5rem)/1.2 var(--sans); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.formula ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 20px; }
.formula li { padding: 6px 12px; border-radius: 999px; background: var(--panel); color: var(--muted); font-size: 0.85rem; font-weight: 600; }
.formula ul + p { margin-top: 20px; color: var(--muted); }

.note { margin: 20px 8px 0; color: var(--muted); font-size: 0.9rem; }

footer { padding-block: 24px 40px; }
footer nav { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 0.88rem; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--ink); text-decoration: underline; }

@media (prefers-reduced-motion: no-preference) {
  .action { transition: filter 0.15s; }
}