body { font-family: system-ui, -apple-system, "Segoe UI", Tahoma, Arial, sans-serif; }
.card-link { text-decoration: none; color: inherit; }
.card-link:hover { border-color: #0d6efd; }
code { direction: ltr; unicode-bidi: bidi-override; }
.btn-lg { padding: 1rem 1.25rem; font-size: 1.05rem; }

/* iOS Safari safe-area + modern viewport units */
body {
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}
@supports (height: 1dvh) {
  /* Bootstrap uses 100vh; dvh behaves better with mobile browser UI */
  .min-vh-100 { min-height: 100dvh !important; }
}