:root {
  --text: #9ca3af;
  --text-h: #f3f4f6;
  --bg: #16171d;
  --bg-subtle: #1c1d24;
  --border: #2e303a;
  --accent: #c084fc;
  --sans: system-ui, 'Segoe UI', Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent); }
strong { color: var(--text-h); font-weight: 600; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

header { border-bottom: 1px solid var(--border); }
header .wrap { display: flex; align-items: center; height: 72px; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-h);
  text-decoration: none;
}

main { padding: 40px 0 56px; }
h1 { color: var(--text-h); font-size: 34px; line-height: 1.2; margin: 0 0 8px; }
h2 { color: var(--text-h); font-size: 20px; margin: 40px 0 8px; }
.meta { font-size: 14px; margin: 0 0 24px; }
.summary {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
}
.summary ul { margin: 8px 0 0; padding-left: 20px; }
li { margin: 4px 0; }

footer { border-top: 1px solid var(--border); padding: 28px 0; font-size: 14px; }
footer a { color: inherit; }

header .wrap { justify-content: space-between; }
.langs { display: flex; gap: 2px; font-size: 13px; font-weight: 600; }
.langs a { padding: 4px 7px; border-radius: 6px; text-decoration: none; color: var(--text); }
.langs a:hover { color: var(--text-h); background: var(--bg-subtle); }
.langs a[aria-current="true"] { color: var(--accent); background: rgba(192, 132, 252, 0.15); }
.note { font-size: 14px; font-style: italic; }

@media (max-width: 560px) {
  header .wrap { height: auto; min-height: 72px; flex-wrap: wrap; gap: 8px; padding-top: 12px; padding-bottom: 12px; }
  .langs a { padding: 4px 5px; }
}