:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #17202e;
  --muted: #55627a;
  --line: #dde3ec;
  --accent: #0b7a4b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1420;
    --surface: #151e2d;
    --text: #eef2f8;
    --muted: #a3afc2;
    --line: #283449;
    --accent: #3ddc97;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.7 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Arabic", "Noto Sans", sans-serif;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.08em;
}

.languages {
  display: flex;
  gap: 8px;
}

.languages a {
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
}

.lang {
  padding: 8px 24px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.lang + .lang { margin-top: 16px; }

/* One language at a time where the browser allows it; otherwise all three stay readable. */
@supports selector(:has(a)) {
  .lang { display: none; }
  .lang:target { display: block; }
  body:not(:has(.lang:target)) #ar { display: block; }
  .lang + .lang { margin-top: 0; }
}

h1 {
  margin: 16px 0 4px;
  font-size: 28px;
  line-height: 1.3;
}

h2 {
  margin: 28px 0 4px;
  font-size: 18px;
}

p, ul, ol { margin: 8px 0; }

ul, ol { padding-inline-start: 22px; }

li + li { margin-top: 4px; }

a { color: var(--accent); }

.date, .note { color: var(--muted); font-size: 14px; }

.more {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}