.number-clock {
  --clock-bg: #f4f5fa;
  --clock-surface: #e4e6f0;
  --clock-fg: #1e1e2e;
  --clock-sub: #5a5e78;
  --clock-border: #c4c8d8;
  --clock-accent: #2054a8;
  --clock-signal: #277a48;

  position: relative;
  isolation: isolate;
  container-type: inline-size;
  display: grid;
  gap: 0.75rem;
  width: 100%;
  max-width: 720px;
  margin: 1.25rem auto 1.75rem;
  padding: 1.1rem 1.25rem;
  overflow: hidden;
  color: var(--clock-fg);
  background-color: var(--clock-bg);
  background-image:
    linear-gradient(rgb(90 94 120 / 7%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(90 94 120 / 7%) 1px, transparent 1px);
  background-size: 20px 20px;
  border: 1px solid var(--clock-border);
  border-left: 4px solid var(--clock-accent);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgb(30 30 46 / 10%);
}

[data-md-color-scheme="slate"] .number-clock {
  --clock-bg: #1e1e2e;
  --clock-surface: #313244;
  --clock-fg: #cdd6f4;
  --clock-sub: #a6adc8;
  --clock-border: #45475a;
  --clock-accent: #89b4fa;
  --clock-signal: #a6e3a1;

  background-image:
    linear-gradient(rgb(205 214 244 / 5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(205 214 244 / 5%) 1px, transparent 1px);
  box-shadow: 0 8px 24px rgb(0 0 0 / 24%);
}

.number-clock--hex {
  --clock-accent: #b85c10;
  --clock-signal: #b83050;
}

[data-md-color-scheme="slate"] .number-clock--hex {
  --clock-accent: #fab387;
  --clock-signal: #f38ba8;
}

.number-clock__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.number-clock__label {
  color: var(--clock-sub);
  font-family: Roboto, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.number-clock__signal {
  width: 0.6rem;
  height: 0.6rem;
  flex: 0 0 auto;
  background: var(--clock-signal);
  border: 2px solid var(--clock-bg);
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--clock-signal);
}

.number-clock__display {
  display: block;
  width: 100%;
  padding: 0.8rem 1rem;
  overflow: hidden;
  color: var(--clock-accent);
  background: var(--clock-surface);
  border: 1px solid var(--clock-border);
  border-radius: 6px;
  font-family: "Roboto Mono", Consolas, monospace;
  font-size: 1.2rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-overflow: clip;
  white-space: nowrap;
}

.number-clock__units {
  color: var(--clock-sub);
  font-family: Roboto, sans-serif;
  font-size: 0.68rem;
  text-align: center;
}

@media (max-width: 520px) {
  .number-clock {
    gap: 0.6rem;
    padding: 0.9rem;
  }

  .number-clock__display {
    padding: 0.7rem 0.35rem;
    font-size: 0.8rem;
  }
}

@container (max-width: 380px) {
  .number-clock__display {
    padding: 0.7rem 0.35rem;
    font-size: 0.8rem;
  }
}