:root {
  color-scheme: light dark;
  --ink: #17261c;
  --paper: #f7f8f4;
  --accent: #1f6b45;
  --soft: #e3ebdf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8efe6;
    --paper: #121a15;
    --accent: #7fd1a1;
    --soft: #223228;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  font:
    17px/1.6 system-ui,
    sans-serif;
  color: var(--ink);
  background: var(--paper);
}
main {
  max-width: 640px;
}
.eyebrow {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
h1 {
  margin: 8px 0 12px;
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1.15;
}
button {
  font: inherit;
  font-weight: 600;
  padding: 10px 18px;
  border: 0;
  border-radius: 8px;
  color: var(--paper);
  background: var(--accent);
  cursor: pointer;
}
button:disabled {
  opacity: 0.6;
}
pre {
  margin-top: 20px;
  padding: 16px;
  border-radius: 8px;
  background: var(--soft);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}