/* trailheadinteractive.app - the field guide's paper and ink, plain and readable. */
:root {
  --paper: #F4EFE4;
  --card: #FBF8F1;
  --ink: #33291C;
  --muted: #6E6250;
  --rule: #D9CFBB;
  --accent: #2F6B45;
  --heading: #8A5A1E;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #18211B;
    --card: #1F2A23;
    --ink: #ECE6D8;
    --muted: #B5AC9A;
    --rule: #34423A;
    --accent: #7CC495;
    --heading: #E0B26A;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.06rem;
  line-height: 1.6;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 32px 56px;
}
main { max-width: 680px; margin: 0 auto; }
header.site { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  border-bottom: 2px solid var(--ink); padding-bottom: 10px; margin-bottom: 26px; }
header.site a.brand { color: var(--ink); text-decoration: none; font-weight: 700; letter-spacing: 0.02em; }
header.site nav a { color: var(--muted); margin-left: 14px; font-family: system-ui, sans-serif; font-size: 0.9rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 6px; text-wrap: balance; }
h2 { font-family: system-ui, sans-serif; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--heading); margin: 34px 0 8px; }
p, li { max-width: 65ch; }
ul { padding-left: 1.2em; }
li { margin: 6px 0; }
a { color: var(--accent); }
.date { color: var(--muted); font-family: system-ui, sans-serif; font-size: 0.9rem; margin: 0 0 22px; }
.short { background: var(--card); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 18px; }
footer { margin-top: 44px; padding-top: 14px; border-top: 1px solid var(--rule); color: var(--muted);
  font-family: system-ui, sans-serif; font-size: 0.88rem; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }