:root {
  --bg: #F4F6F8;
  --surface: #FFFFFF;
  --text: #0B0F14;
  --muted: #5A6470;
  --accent: #0F6A44;
  --border: #E2E6EA;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0F14;
    --surface: #151B22;
    --text: #F2F4F6;
    --muted: #9AA4AE;
    --accent: #36C98C;
    --border: #232B34;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 64px; }
header { display: flex; align-items: center; gap: 14px; margin-bottom: 32px; }
header img { width: 56px; height: 56px; border-radius: 13px; }
header a { color: inherit; text-decoration: none; }
header .name { font-size: 22px; font-weight: 700; }
header .tag { color: var(--muted); font-size: 15px; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 36px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  margin: 16px 0;
}
.card h2 { margin-top: 0; }
ul { padding-left: 22px; }
.ar { direction: rtl; text-align: right; font-family: "SF Arabic", "Geeza Pro", system-ui, sans-serif; }
footer { margin-top: 48px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }