:root {
  color-scheme: light;
  --paper: #f7f6ef;
  --ink: #24362e;
  --muted: #647267;
  --accent: #497455;
  --wash: #e9eee7;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 1080px; margin: auto; padding: 2rem 3rem; }
header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.wordmark { font-size: 1.8rem; font-weight: 750; letter-spacing: -.08em; text-decoration: none; color: inherit; }
.wordmark span, .period { color: var(--accent); }
.badge { border: 1px solid #ccd4c9; border-radius: 2rem; padding: .4rem .75rem; font-size: .75rem; color: var(--muted); }
.welcome { padding: 6rem 0 4.5rem; }
.eyebrow { font-size: .75rem; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(3rem, 9vw, 6rem); font-weight: 550; letter-spacing: -.07em; line-height: 1.05; margin: 1.25rem 0; transition: opacity .25s; }
h1.dim { opacity: .25; }
.intro { font-size: 1.15rem; color: var(--muted); margin-bottom: 2rem; }
button, input { font: inherit; }
button { background: var(--ink); color: var(--paper); border: 1px solid var(--ink); border-radius: .5rem; padding: .7rem 1rem; cursor: pointer; }
button:hover { background: var(--accent); }
button:disabled { opacity: .6; cursor: wait; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.examples { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #ccd4c9; gap: 4rem; padding: 2rem 0; }
h2 { font-size: 1.35rem; font-weight: 550; letter-spacing: -.025em; margin: 1rem 0 1.5rem; }
label { display: block; font-size: .85rem; margin-bottom: .5rem; }
input { display: block; max-width: 100%; width: 100%; padding: .7rem .8rem; color: var(--ink); border: 1px solid #b4c0b2; border-radius: .5rem; background: #fffdf7; }
.result { min-height: 3rem; font-size: .9rem; line-height: 1.6; color: var(--muted); overflow-wrap: anywhere; }
.timestamp { display: block; font-size: .75rem; font-variant-numeric: tabular-nums; }
footer { border-top: 1px solid #ccd4c9; padding-top: 1.5rem; font-size: .75rem; color: var(--muted); }
@media (max-width: 640px) {
  main { padding: 1.5rem; }
  .welcome { padding: 4.5rem 0 3rem; }
  .examples { grid-template-columns: 1fr; gap: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  h1 { transition: none; }
  h1.dim { opacity: 1; }
}