:root { color-scheme: light dark; --ink: #1d2433; --soft: #5b6475; --line: #e3e6ec; --page: #fbfbf9; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #eceef2; --soft: #a4acbb; --line: #333a47; --page: #14181f; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 17px/1.8 -apple-system, "Segoe UI", Tahoma, "Noto Naskh Arabic", sans-serif;
}
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 1.6rem; line-height: 1.4; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
a { color: inherit; }
.meta { color: var(--soft); font-size: 0.9rem; margin: 0 0 1.5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.4rem; }
ul, ol { padding-inline-start: 1.25rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0 1rem; }
nav { border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1rem; font-size: 0.9rem; color: var(--soft); }
nav a { margin-inline-end: 1rem; }