:root {
  --bg: #f5f8f7;
  --surface: #ffffff;
  --text: #171d1c;
  --muted: #4a5553;
  --brand: #0f766e;
  --border: #dde5e3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111413;
    --surface: #1a1f1e;
    --text: #e6ebea;
    --muted: #c0cac8;
    --brand: #5eead4;
    --border: #3a4442;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

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

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

.brand {
  display: inline-block;
  font-weight: 700;
  color: var(--brand);
  text-decoration: none;
}

h1 { font-size: 1.9rem; line-height: 1.25; margin: 8px 0; }
h2 { font-size: 1.15rem; margin: 28px 0 8px; }
.meta, .lead { color: var(--muted); }

.summary, .features {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
}

.summary h2 { margin-top: 0; }
.features { list-style: none; }
.features li { padding: 6px 0; }

/* Urdu: system Nastaliq fonts when present; no web fonts are loaded (CSP font-src 'self'). */
[lang="ur"] {
  font-family: "Noto Nastaliq Urdu", "Jameel Noori Nastaleeq", "Urdu Typesetting", "Noto Naskh Arabic", serif;
  line-height: 2.2;
}

.urdu {
  margin-top: 48px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.urdu h1 { font-size: 1.7rem; line-height: 1.8; }
.urdu h2 { font-size: 1.2rem; }
.urdu .features, .urdu .summary { padding-right: 20px; }

[dir="ltr"] { unicode-bidi: isolate; }

footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}