:root { color-scheme: light dark; --bg: #fff; --fg: #1a1a1a; --muted: #555; --line: #d8d8d8; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #14161a; --fg: #ececec; --muted: #a5a5a5; --line: #33373d; }
}
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 44rem; margin: 0 auto; padding: 2rem 16px; }
h1 { font-size: 1.75rem; margin: 0 0 .25rem; }
.lede { color: var(--muted); margin: 0 0 1.5rem; }
.certification { border: 1px solid var(--line); border-radius: 8px; padding: .5rem 1rem;
  margin: 0 0 1rem; }
dl { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; }
dt { color: var(--muted); }
dd { margin: 0; overflow-wrap: anywhere; }
a { color: inherit; }
input, select, textarea { font: inherit; padding: .25rem .5rem; margin-right: .5rem;
  max-width: 100%; }
button { font: inherit; padding: .25rem .75rem; }