:root {
  --canvas: #f5f2ec;
  --ink: #1f2a24;
  --muted: #6b7069;
  --brand: #3c5e4c;
  --rule: #dcd8cf;
  --panel: #ece8df;
}
@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #121513;
    --ink: #ece9e2;
    --muted: #9aa097;
    --brand: #8fbca2;
    --rule: #2b302c;
    --panel: #1b201c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 40px 20px 80px; }
header { margin-bottom: 32px; }
.app { font-family: ui-serif, Georgia, serif; font-size: 22px; color: var(--brand); text-decoration: none; }
h1 { font-family: ui-serif, Georgia, serif; font-weight: 400; font-size: 38px; line-height: 1.15; margin: 8px 0 6px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 22px 0 4px; }
p, li { margin: 0 0 12px; }
ul { padding-left: 22px; }
a { color: var(--brand); }
.meta { color: var(--muted); font-size: 15px; }
.lang { display: flex; gap: 14px; font-size: 15px; margin-top: 10px; }
.summary { background: var(--panel); border-radius: 14px; padding: 16px 20px; margin: 20px 0; }
.summary p:last-child, .summary ul:last-child { margin-bottom: 0; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 56px 0; }
footer { color: var(--muted); font-size: 14px; margin-top: 56px; }