:root {
  --bg: #ffffff;
  --text: #1c1c1e;
  --muted: #6b6b70;
  --accent: #E8341C;
  --rule: #e6e6ea;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111113; --text: #ededf0; --muted: #a0a0a8; --accent: #ff6a52; --rule: #2a2a2e; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 40px 20px 80px; }
.brand { font-weight: 800; color: var(--accent); letter-spacing: 0.02em; margin: 0 0 24px; }
.brand a { color: inherit; text-decoration: none; }
.brand img { display: block; height: auto; max-width: 180px; }
@media (prefers-color-scheme: dark) { .brand img { background: #F7F4EF; border-radius: 10px; padding: 6px 10px; } }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-size: 19px; margin: 36px 0 8px; padding-top: 20px; border-top: 1px solid var(--rule); }
h3 { font-size: 16px; margin: 22px 0 4px; }
.meta { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 6px 0; }