:root { --paper: #FBF4E6; --card: #FFFFFF; --ink: #2B2420; --muted: #6B5646; --line: #E4D3B8; --accent: #C96A5B; }
@media (prefers-color-scheme: dark) {
  :root { --paper: #1D1917; --card: #302824; --ink: #F4EADB; --muted: #C3AE9B; --line: #4A3D33; --accent: #E58A7B; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.6 ui-rounded, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 2em 0 0.4em; }
p, li { margin: 0.4em 0; }
.meta { color: var(--muted); margin-bottom: 1.5em; }
.card { background: var(--card); border: 1.5px solid var(--line); border-radius: 14px; padding: 16px 18px; margin: 16px 0; }
a { color: var(--accent); }
nav { font-size: 0.95rem; margin-bottom: 24px; }
nav a { margin-right: 14px; }
footer { color: var(--muted); font-size: 0.9rem; margin-top: 48px; }