:root {
  --bg: #f7f6f2;
  --card: #ffffff;
  --text: #1d2420;
  --muted: #5b6660;
  --brand: #1f5c43;
  --line: #e3e1da;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121614;
    --card: #1a201d;
    --text: #e8ece9;
    --muted: #9aa5a0;
    --brand: #6fc39a;
    --line: #2a322e;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Naskh Arabic", "Geeza Pro", sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { margin-bottom: 24px; }
h1 { font-size: 1.9rem; margin: 0 0 4px; color: var(--brand); }
h2 { font-size: 1.2rem; margin: 28px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); font-size: 0.92rem; }
section.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px 24px 20px;
  margin-top: 20px;
}
a { color: var(--brand); }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
[dir="rtl"] { font-size: 1.05rem; }
footer { margin-top: 40px; text-align: center; }