:root {
  --bg: #fff7ec; --surface: #ffffff; --ink: #1c1930; --muted: #5f5a75; --line: #ecdfcc; --brand: #6b4cff;
  --display: "Bricolage Grotesque", ui-rounded, system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #14121f; --surface: #1f1c30; --ink: #f5f1ff; --muted: #a7a1c2; --line: #2e2a45; --brand: #8f78ff; }
}
:root[data-theme="dark"] { --bg: #14121f; --surface: #1f1c30; --ink: #f5f1ff; --muted: #a7a1c2; --line: #2e2a45; --brand: #8f78ff; }

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.65 var(--body); -webkit-font-smoothing: antialiased; }
a { color: var(--brand); }
.wrap { width: min(760px, 100% - 32px); margin-inline: auto; }

header { padding: 18px 0; }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 800 22px var(--display); }
.logo img { width: 40px; height: 40px; }
header nav { display: flex; gap: 18px; font-size: 15px; font-weight: 600; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a[aria-current="page"] { color: var(--ink); }

main { background: var(--surface); border: 1px solid var(--line); border-radius: 32px; padding: 40px 44px; margin: 24px auto 64px; }
h1 { font: 800 clamp(34px, 6vw, 48px)/1.05 var(--display); letter-spacing: -.02em; margin: 0 0 8px; }
h2 { font: 700 22px/1.2 var(--display); margin: 32px 0 8px; }
.date { color: var(--muted); margin: 0 0 24px; }
p, li { color: var(--muted); }
strong { color: var(--ink); }
ul { padding-left: 1.2em; }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a { color: inherit; }

@media (max-width: 640px) {
  main { padding: 28px 22px; border-radius: 24px; }
  header nav { gap: 12px; font-size: 14px; }
}