/* Countdown timer — digit flip styling */
.countdown {
  display: inline-flex;
  gap: 0.4rem;
  align-items: baseline;
  font-family: var(--serif);
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
}
.countdown__unit {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  min-width: 2.4ch;
}
.countdown__digits {
  font-size: 1.4em;
  font-weight: 600;
  color: inherit;
  line-height: 1;
}
.countdown__label {
  font-family: var(--sans);
  font-size: 0.55em;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.7;
  margin-top: 0.15rem;
}
.countdown__sep {
  font-size: 1.2em;
  opacity: 0.6;
  margin: 0 0.1rem;
}
/* Flash only the individual digit that changed, not every digit */
.countdown__digits[data-flash="true"] {
  animation: digitFlash 240ms ease-out;
}
@keyframes digitFlash {
  0%   { transform: translateY(-4px); opacity: 0.2; }
  100% { transform: translateY(0);     opacity: 1; }
}