/* Countdown grid */
.countdown {
  width: 100%;
  max-width: 32rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
}

.countdown__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.5rem, 2vw, 1rem);
  width: 100%;
}

.countdown__cell {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: clamp(0.75rem, 3vw, 1.25rem) 0.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-1);
  overflow: hidden;
  isolation: isolate;
  transition: border-color var(--dur-base) var(--ease-out);
}

.countdown__cell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--c-accent-soft), transparent 60%);
  opacity: 0.5;
  z-index: -1;
  transition: opacity var(--dur-base) var(--ease-out);
}

.countdown__cell[data-flip="true"]::before {
  opacity: 1;
}

.countdown__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 7vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  transition: transform var(--dur-fast) var(--ease-out);
}

.countdown__value[data-flip="true"] {
  animation: count-flip var(--dur-base) var(--ease-out);
}

.countdown__label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--c-fg-subtle);
  font-weight: 600;
}

.countdown__status {
  font-size: var(--fs-sm);
  color: var(--c-fg-muted);
  min-height: 1.5em;
  font-variant-numeric: tabular-nums;
}

@keyframes count-flip {
  0% { transform: translateY(-30%); opacity: 0; }
  50% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(0); opacity: 1; }
}