:root {
  --ink: #111111;
  --muted: #57534E;
  --ground: #FFFFFF;
  --surface: #F5F5F4;
  --line: #E7E5E4;
  --accent: #C2410C;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #F5F5F4;
    --muted: #A8A29E;
    --ground: #111111;
    --surface: #1C1917;
    --line: #292524;
    --accent: #FB923C;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.6 "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 80px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.logo {
  width: 40px; height: 40px; border-radius: 10px; background: #111111;
  display: grid; place-items: center; color: #EA580C; font-weight: 800;
}
.brand { font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.5px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--ink); }
.meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
a { color: var(--accent); }
nav.lang { display: flex; gap: 12px; margin-bottom: 24px; font-size: 14px; }
.card { background: var(--surface); border-radius: 16px; padding: 16px 20px; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
section + section { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--line); }