.calendar-strip {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin: 1.5rem 0;
}

.calendar-day {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--line);
  color: var(--ink-soft);
  font-size: 0.8rem;
  transition: background-color 0.6s ease, color 0.6s ease, transform 0.4s ease;
}

.calendar-day-today { border: 2px solid var(--brand); }

.calendar-day-lit {
  background-color: var(--accent);
  color: white;
  transform: scale(1.1);
}

.streak-flame {
  font-size: 3rem;
  text-align: center;
  opacity: 0.3;
  filter: grayscale(100%);
  transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease;
}

.streak-flame.flame-lit {
  opacity: 1;
  filter: grayscale(0%);
  transform: scale(1.15);
  animation: flame-flicker 1.6s ease-in-out infinite;
}

@keyframes flame-flicker {
  0%, 100% { transform: scale(1.15) rotate(-2deg); }
  50%      { transform: scale(1.22) rotate(2deg); }
}

@media (prefers-reduced-motion: reduce) {
  .calendar-day,
  .streak-flame { transition: none; }
  .streak-flame.flame-lit { animation: none; }
}