:root {
  --bg: #f7faf6; --fg: #142019; --muted: #4c5c52; --card: #ffffff;
  --brand: #1e8c45; --brand-dark: #0b3d23; --line: #dde7df;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1511; --fg: #e3ece5; --muted: #a8b8ad; --card: #18211b; --brand: #58c46e; --line: #26332a; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { background: linear-gradient(135deg, #0b3d23, #1e8c45); color: #fff; padding: 28px 16px; }
header .wrap { display: flex; align-items: center; gap: 16px; }
header img { width: 56px; height: 56px; background: #fff; border-radius: 14px; padding: 6px; }
header h1 { margin: 0; font-size: 1.4rem; }
header p { margin: 2px 0 0; opacity: .85; font-size: .95rem; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
main { padding: 24px 0 48px; }
h2 { margin-top: 2em; font-size: 1.2rem; }
a { color: var(--brand); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin: 16px 0; }
.muted { color: var(--muted); font-size: .9rem; }
.lang { float: right; font-size: .9rem; }
ol li, ul li { margin: 4px 0; }
footer { border-top: 1px solid var(--line); padding: 20px 0 40px; color: var(--muted); font-size: .85rem; }
.btn { display: inline-block; background: var(--brand); color: #fff; text-decoration: none;
  padding: 10px 18px; border-radius: 10px; font-weight: 600; }