:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --text: #1f1d1a;
  --muted: #6b665e;
  --line: #e4e0d8;
  --accent: #c2622d;
  --card: #ffffff;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Sukhumvit Set", "Noto Sans Thai", "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.brand { font-weight: 700; color: var(--accent); text-decoration: none; }
.langs { display: flex; gap: 4px; }
.langs button {
  font: inherit; font-size: 14px; padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer;
}
.langs button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
h1 { font-size: 28px; line-height: 1.3; margin: 24px 0 4px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
.meta { color: var(--muted); margin: 0 0 24px; }
a { color: var(--accent); }
ul, ol { padding-left: 1.4em; }
li { margin: 2px 0; }
.table { overflow-x: auto; margin: 12px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14px; background: var(--card); }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { font-weight: 600; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
[lang][hidden] { display: none; }
.links { list-style: none; padding: 0; }
.links li { margin: 12px 0; }
.links a { font-size: 18px; }