:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c1f26;
  --muted: #5d6573;
  --accent: #19b872;
  --line: #e3e6eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1220;
    --card: #181d2e;
    --text: #eef0f4;
    --muted: #a3abba;
    --line: #2a3047;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
header img { width: 72px; height: 72px; border-radius: 16px; }
header h1 { margin: 0; font-size: 28px; line-height: 1.2; }
header p { margin: 4px 0 0; color: var(--muted); }
section { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px 22px; margin-bottom: 16px; }
h2 { margin: 0 0 8px; font-size: 19px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 15px; }
a { color: var(--accent); }
nav { display: flex; gap: 16px; margin-bottom: 24px; font-size: 15px; }
.langs { margin-top: -12px; }
.langs a { color: var(--muted); }