:root { --red: #ff0000; --ink: #000; --paper: #fff; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--red); color: var(--ink);
  font: 17px/1.55 "Geist", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif; }
main { max-width: 720px; margin: 40px auto; padding: 40px 32px; background: var(--paper);
  border: 2px solid var(--ink); border-radius: 32px; }
h1 { font-size: 44px; line-height: 1; letter-spacing: -0.04em; margin: 0 0 8px; }
h2 { font-size: 22px; letter-spacing: -0.02em; margin: 32px 0 8px; }
p, li { margin: 0 0 12px; }
a { color: var(--ink); }
.muted { opacity: 0.6; font-size: 15px; }
.pill { display: inline-block; padding: 8px 18px; border: 2px solid var(--ink); border-radius: 999px;
  background: var(--paper); text-decoration: none; margin: 4px 8px 4px 0; }
@media (max-width: 760px) { main { margin: 16px; padding: 28px 20px; border-radius: 24px; } h1 { font-size: 36px; } }