:root {
  --mat: #1d4539;
  --mat-deep: #122c24;
  --paper: #f4f1e8;
  --ink: #1c1f22;
  --ink-soft: #4a4f55;
  --accent: #f6c343;
  --line: rgba(28, 31, 34, 0.12);
  --bg: #fbfaf6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1f2a26;
    --ink: #eef0ea;
    --ink-soft: #b6c2bb;
    --line: rgba(238, 240, 234, 0.14);
    --bg: #151d1a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Geologica", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.55;
}
header {
  background: var(--mat);
  color: #f4f1e8;
  padding: 28px 16px 32px;
}
header .wrap { display: flex; flex-direction: column; gap: 6px; }
.label {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a9cbbb;
}
header h1 { margin: 4px 0 0; font-size: clamp(28px, 6vw, 40px); line-height: 1.1; letter-spacing: -0.02em; }
header p { margin: 4px 0 0; color: #c9ddd3; font-size: 15px; }
nav.lang { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
nav.lang a, .links a {
  color: #1c1f22;
  background: var(--accent);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
main { padding: 28px 0 56px; }
section.doc + section.doc { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--line); }
h2 { font-size: 26px; line-height: 1.2; margin: 0 0 4px; letter-spacing: -0.01em; }
h3 { font-size: 19px; margin: 28px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--ink-soft); font-size: 15px; }
ul { padding-left: 22px; }
li + li { margin-top: 4px; }
.summary {
  background: var(--paper);
  border-radius: 16px;
  padding: 14px 18px;
  margin: 18px 0 8px;
}
.summary ul { margin: 6px 0 0; }
a { color: inherit; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
footer { padding: 24px 0 40px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; }
.links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.links a.store { background: #f4f1e8; color: #122c24; padding: 10px 20px; font-size: 16px; font-weight: 700; }