:root {
  --bg: #f6f8f8;
  --surface: #ffffff;
  --text: #13262a;
  --muted: #56696d;
  --brand: #0f3a42;
  --accent: #2f9e88;
  --border: #dde5e6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1a1d;
    --surface: #122629;
    --text: #e6eff0;
    --muted: #9db2b5;
    --brand: #7fdcc6;
    --accent: #6fd3bd;
    --border: #22393d;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: var(--accent); }
header.site {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
header.site .inner, main, footer.site .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}
header.site .inner {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  flex-wrap: wrap;
}
header.site .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 19px;
  margin-right: auto;
}
header.site .brand img { width: 32px; height: 32px; }
header.site nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 15px; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a[aria-current="page"] { color: var(--text); font-weight: 600; }
main { padding-top: 32px; padding-bottom: 48px; }
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--text); }
.meta { color: var(--muted); font-size: 15px; margin-bottom: 24px; }
.lang-switch { display: flex; gap: 8px; margin: 0 0 24px; }
.lang-switch a {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 14px;
  text-decoration: none;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 16px 0;
}
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }
hr.lang { border: 0; border-top: 2px solid var(--border); margin: 56px 0 32px; }
.hero { text-align: center; padding: 24px 0 8px; }
.hero img { width: 120px; height: 120px; }
.hero p { color: var(--muted); font-size: 19px; max-width: 560px; margin: 8px auto 0; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin-top: 32px; }
.features .card { margin: 0; }
.features h3 { margin-top: 0; }
.button {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  margin-top: 16px;
}
@media (prefers-color-scheme: dark) { .button { color: #0b1a1d; } }
span.button { cursor: default; opacity: 0.85; }
footer.site { border-top: 1px solid var(--border); color: var(--muted); font-size: 14px; }
footer.site .inner { padding-top: 20px; padding-bottom: 32px; display: flex; gap: 16px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }