:root {
  color-scheme: light;
  --canvas: #f5f7fa;
  --surface: #ffffff;
  --cobalt: #1d4ed8;
  --text: #0f172a;
  --secondary: #475569;
  --outline: #cbd5e1;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

header, article, footer {
  background: var(--surface);
  border: 1px solid var(--outline);
  border-radius: 20px;
  padding: 28px;
}

article { margin-top: 16px; }
footer { margin-top: 16px; color: var(--secondary); font-size: .92rem; }

h1, h2, h3 { line-height: 1.2; }
h1 { margin: 0 0 10px; font-size: clamp(2rem, 6vw, 3rem); }
h2 { margin-top: 2rem; font-size: 1.35rem; }
h3 { margin-top: 1.5rem; font-size: 1.05rem; }
p, ul { margin: 1rem 0; }
a { color: var(--cobalt); font-weight: 600; }
.eyebrow { color: var(--cobalt); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .78rem; }
.muted { color: var(--secondary); }
.links { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 20px; }
.language-nav { margin: -8px 0 20px; font-size: .86rem; }
.language-nav summary { color: var(--secondary); cursor: pointer; }
.language-options { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 6px 14px; margin: 8px 0 0; padding-inline-start: 20px; }
.language-options span { color: var(--secondary); font-weight: 700; }
.notice { border: 1px solid var(--outline); border-radius: 12px; padding: 0 16px; background: var(--canvas); }

@media (max-width: 560px) {
  main { padding-top: 20px; }
  header, article, footer { padding: 22px; border-radius: 16px; }
}