:root { --green: #2E9E5B; --ink: #23263A; --muted: #5B6075; --bg: #F3FBF6; --card: #FFFFFF; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #ECEFF7; --muted: #AEB4C7; --bg: #14171F; --card: #1E2230; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
       font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
header img { width: 88px; height: 88px; }
header a { color: inherit; text-decoration: none; }
h1 { font-size: 30px; line-height: 1.2; margin: 0; }
h2 { font-size: 20px; margin: 28px 0 8px; color: var(--green); }
p, li { color: var(--ink); }
.muted { color: var(--muted); font-size: 15px; }
.card { background: var(--card); border-radius: 20px; padding: 8px 24px 20px; box-shadow: 0 2px 12px rgba(0,0,0,.06); }
nav { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
nav a { background: var(--green); color: #fff; text-decoration: none; padding: 10px 18px; border-radius: 999px; font-weight: 600; }
a { color: var(--green); }
footer { margin-top: 32px; }