:root {
  --bg: #faf9f5;
  --fg: #141413;
  --muted: #87867f;
  --line: #e3dfd3;
  --accent: #d97757;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1f1e1d;
    --fg: #f0eee6;
    --line: #3a3936;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "PingFang SC", sans-serif;
}
main {
  text-align: center;
}
.label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.time {
  margin: 0.25rem 0 1.5rem;
  font: 400 clamp(4rem, 16vw, 8rem) / 1 Georgia, "Songti SC", serif;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}
button {
  font: inherit;
  font-size: 0.9rem;
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
}
button.primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.actions,
.modes {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}
.modes {
  margin-top: 1.5rem;
}
.modes button {
  border: none;
  color: var(--muted);
}
.modes button.active {
  color: var(--accent);
}