:root {
  color-scheme: light dark;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f6f5f2;
  color: #171717;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 680px);
  padding: clamp(24px, 6vw, 56px);
  border: 1px solid #d8d4cc;
  border-radius: 28px;
  background: #fffdfa;
  box-shadow: 0 20px 70px rgb(0 0 0 / 8%);
}

.eyebrow, .status, dt {
  color: #66635d;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 28px;
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: -0.05em;
}

.clock {
  display: block;
  font: 700 clamp(3rem, 15vw, 8rem) / 0.9 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: -0.08em;
  margin: 0 0 32px;
}

dl {
  display: grid;
  gap: 16px;
  margin: 0 0 28px;
}

@media (min-width: 560px) {
  dl { grid-template-columns: repeat(3, 1fr); }
}

dt {
  font-size: 0.78rem;
  margin-bottom: 4px;
}

dd {
  margin: 0;
  font-weight: 650;
}

button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid #171717;
  border-radius: 999px;
  background: #171717;
  color: #fff;
  font: inherit;
  cursor: pointer;
}

button:focus-visible {
  outline: 3px solid #876dff;
  outline-offset: 3px;
}

@media (prefers-color-scheme: dark) {
  :root { background: #111; color: #f4f1ea; }
  .card { background: #181818; border-color: #333; box-shadow: none; }
  .eyebrow, .status, dt { color: #aaa39a; }
  button { background: #f4f1ea; color: #111; border-color: #f4f1ea; }
}