:root {
  --bg: #F5F5F2; --surface: #FFFFFF; --ink: #17171A; --muted: #6E6E73; --line: #E7E6E1; --brand: #FFC83D;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #18181A; --surface: #242426; --ink: #F5F5F2; --muted: #BBBBBF; --line: #3B3B3E; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 22px; }
nav.lang { display: flex; gap: 8px; margin: 18px 0 8px; }
nav.lang a {
  padding: 6px 14px; border-radius: 999px; background: var(--surface); color: var(--ink);
  text-decoration: none; font-size: 15px; font-weight: 600; border: 1px solid var(--line);
}
section { padding-top: 24px; }
section + section { border-top: 1px solid var(--line); margin-top: 40px; }
h1 { font-size: 34px; line-height: 1.15; letter-spacing: -0.02em; margin: 8px 0 6px; }
h2 { font-size: 21px; line-height: 1.3; margin: 32px 0 6px; }
p, li { margin: 8px 0; }
ul { padding-left: 22px; }
.date { color: var(--muted); font-size: 15px; margin: 0 0 20px; }
.summary { background: var(--surface); border-radius: 18px; padding: 16px 20px; border-left: 6px solid var(--brand); }
a { color: inherit; }
footer { color: var(--muted); font-size: 14px; margin-top: 48px; }