body {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 19.2px;
  background: #f7f8fa;
  color: #1a2332;
  margin: 0;
  padding: 24px;
  direction: rtl;
}
main {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  padding: 32px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,.08);
}
h1 { font-size: 28.8px; margin-top: 0; }
h2 { font-size: 21.6px; margin-top: 28px; }
p { line-height: 1.7; }
a { color: #1a4fa2; }
a:focus-visible { outline: 2px solid #1a4fa2; outline-offset: 2px; }

@media (max-width: 480px) {
  body { padding: 12px; }
  main { padding: 20px; }
  h1 { font-size: 24px; }
  h2 { font-size: 19.2px; }
}