:root {
  --bg: #fbf6ee;
  --card: #f5ede0;
  --ink: #264653;
  --text: #2b2b2b;
  --muted: #5f6b70;
  --accent: #2a9d8f;
  --line: #e4d9c7;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161c1d;
    --card: #1f2627;
    --ink: #e8eef0;
    --text: #dfe5e6;
    --muted: #9fb0b5;
    --accent: #6fd0c2;
    --line: #2e3739;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 20px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 44px; height: 44px; border-radius: 12px; background: #fff; padding: 6px; }
header a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; }
nav.lang { margin-left: auto; font-size: 15px; }
nav.lang a { color: var(--accent); text-decoration: none; font-weight: 600; }
h1 { color: var(--ink); font-size: 30px; line-height: 1.25; margin: 28px 0 6px; }
h2 { color: var(--ink); font-size: 21px; margin: 34px 0 8px; }
p, li { margin: 8px 0; }
ul { padding-left: 22px; }
a { color: var(--accent); }
.updated { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.box { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px 18px; margin: 18px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15.5px; margin: 10px 0; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--ink); }
.cards { display: grid; gap: 12px; margin-top: 24px; }
.cards a { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; color: var(--ink); text-decoration: none; font-weight: 600; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); padding-top: 16px; }
@media (max-width: 520px) {
  body { font-size: 16px; }
  h1 { font-size: 26px; }
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  td { border: none; padding: 2px 0; }
  tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
}