:root {
  --bg: #fff8ef;
  --card: #ffffff;
  --ink: #4a3428;
  --soft: #8a6f60;
  --ginger: #f08a3c;
  --line: #f1e2d2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #221a15;
    --card: #2e241e;
    --ink: #f6e9dc;
    --soft: #c2aa98;
    --ginger: #ffa863;
    --line: #42352c;
  }
}
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.7 "IBM Plex Sans Thai", -apple-system, system-ui, sans-serif;
}
.hero { position: relative; text-align: center; padding: 56px 16px 24px; }
.hero img { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 8px 24px rgba(240, 138, 60, .25); }
.hero h1 { font-size: 32px; line-height: 1.2; margin: 18px 0 4px; }
.hero p { margin: 0; color: var(--soft); }
main {
  max-width: 720px; margin: 0 auto 32px; padding: 8px 24px 24px;
  background: var(--card); border: 1px solid var(--line); border-radius: 20px;
}
@media (max-width: 760px) { main { margin: 0 16px 32px; padding: 4px 18px 18px; } }
h2 { font-size: 20px; margin: 28px 0 6px; color: var(--ginger); }
li { margin: 6px 0; }
a { color: var(--ginger); }
.meta { color: var(--soft); font-size: 15px; }
.lang { position: absolute; top: 16px; right: 16px; display: flex; gap: 4px; }
.lang button {
  font: inherit; font-size: 14px; padding: 4px 12px; cursor: pointer;
  border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--soft);
}
.lang button[aria-pressed="true"] { background: var(--ginger); border-color: var(--ginger); color: #fff; }
footer { text-align: center; padding: 0 16px 40px; color: var(--soft); font-size: 15px; }
[lang="en"] .th, [lang="th"] .en { display: none; }
.hero .tagline { font-size: 19px; color: var(--ink); max-width: 520px; margin: 4px auto 0; }
.btn {
  display: inline-block; margin: 18px 4px 0; padding: 10px 22px; border-radius: 999px;
  background: var(--ginger); color: #fff; text-decoration: none; font-weight: 600;
}
.btn.ghost { background: transparent; color: var(--ginger); box-shadow: inset 0 0 0 1.5px var(--ginger); }
details { border-top: 1px solid var(--line); padding: 10px 0; }
details:first-of-type { border-top: 0; }
summary { cursor: pointer; font-weight: 600; }
details p { margin: 6px 0 0; color: var(--ink); }
footer a { margin: 0 8px; }
.table { overflow-x: auto; margin: 12px 0; border: 1px solid var(--line); border-radius: 14px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--soft); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }