:root {
  --paper: #F7F2E8; --surface: #FFFCF6; --ink: #2E2A26; --muted: #6F665C; --line: #E6DDCC; --accent: #B85A36;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #1E1B18; --surface: #2A2622; --ink: #EDE6DA; --muted: #A89F93; --line: #3A342E; --accent: #E58A62; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
.hero { max-width: 720px; margin: 0 auto; padding: 44px 20px 0; text-align: center; }
.hero img { width: 88px; height: 88px; border-radius: 20px; border: 1px solid var(--line); }
.hero h1 { font-family: ui-rounded, "SF Pro Rounded", -apple-system, sans-serif; font-weight: 800; font-size: 42px; letter-spacing: -0.5px; margin: 14px 0 2px; }
.hero p { margin: 0; color: var(--muted); }
nav { margin-top: 22px; padding: 10px 0; font-size: 14px; letter-spacing: 1.2px; text-transform: uppercase;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
nav a { color: var(--ink); text-decoration: none; margin: 0 12px; }
nav a:hover, nav a[aria-current="page"] { color: var(--accent); }
main { max-width: 720px; margin: 0 auto; padding: 24px 20px 64px; }
h2 { font-family: ui-rounded, "SF Pro Rounded", -apple-system, sans-serif; font-weight: 800; font-size: 30px; margin: 28px 0 8px; }
h3 { font-family: ui-rounded, "SF Pro Rounded", -apple-system, sans-serif; font-weight: 700; font-size: 20px; margin: 28px 0 4px;
  padding-top: 18px; border-top: 1px solid var(--line); }
a { color: var(--accent); }
ol, ul { padding-left: 22px; }
li { margin: 4px 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; margin: 18px 0;
  box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.muted { color: var(--muted); font-size: 15px; }
footer { max-width: 720px; margin: 0 auto; text-align: center; color: var(--muted); font-size: 14px; padding: 20px; border-top: 1px solid var(--line); }