/* Birdie design system: white ground, ink text, Cooper* Black for what Birdie
   says, the system face for reading. No lines, no borders; colour only in the
   confetti. One light theme. */
@font-face {
  font-family: "Cooper Star";
  src: url("/fonts/CooperStar-Black.otf") format("opentype");
  font-weight: 900;
  font-display: swap;
}

:root {
  color-scheme: light;
  --ground: #FFFFFF;
  --ink: #16181D;
  --secondary: #6B7280;
  --block: #F3F4F6;
  --display: "Cooper Star", ui-rounded, system-ui, sans-serif;
  --body: -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 16px/23px var(--body);
  -webkit-font-smoothing: antialiased;
}

main, header, footer {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 16px;
}

header { padding-top: 32px; }

.wordmark {
  font: 900 28px/28px var(--display);
  color: var(--ink);
  text-decoration: none;
}

h1 {
  font: 900 40px/42px var(--display);
  margin: 48px 0 16px;
}

h2 {
  font: 900 22px/24px var(--display);
  margin: 40px 0 8px;
}

p, li { margin: 0 0 12px; }
ul { padding-left: 20px; margin: 0 0 12px; }

a { color: var(--ink); text-underline-offset: 3px; }

.lead { font-size: 18px; line-height: 26px; }
.small { font-size: 13px; line-height: 18px; color: var(--secondary); }

.button {
  display: inline-block;
  margin: 16px 0 8px;
  padding: 16px 28px;
  border-radius: 999px;
  background: var(--ink);
  color: #FFFFFF;
  font: 900 18px/18px var(--display);
  text-decoration: none;
}

.block {
  background: var(--block);
  border-radius: 20px;
  padding: 16px 20px;
  margin: 24px 0;
}
.block p:last-child { margin: 0; }

footer {
  margin-top: 64px;
  padding-bottom: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: 13px;
  line-height: 18px;
  color: var(--secondary);
}
footer a { color: var(--secondary); }

.confetti { display: block; margin: 40px 0 0; max-width: 100%; height: auto; }

@media (max-width: 480px) {
  h1 { font-size: 32px; line-height: 34px; margin-top: 32px; }
}