.calendar-container {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-top: 2rem;
}

.month-wrapper {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 4px 20px var(--shadow-color);
  border: 1px solid var(--border-color);
}

.month-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1rem;
}

.day-header {
  text-align: center;
  font-weight: 700;
  padding: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.day-cell {
  min-height: 110px;
  border-radius: 12px;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  background: var(--bg-tertiary);
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s;
}

.day-cell:hover:not(.empty) {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}

.day-cell.empty {
  background: transparent;
  border: none;
  pointer-events: none;
}

.day-number {
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.day-location {
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.3;
  word-break: break-word;
}

/* Day Rules */
.day-cell.unavailable {
  background: rgba(226, 30, 38, 0.05); /* very light red */
  color: var(--text-muted);
}
.day-cell.unavailable .day-number {
  color: #E21E26; /* var(--accent-primary) */
  opacity: 0.6;
}

.day-cell.available {
  background: rgba(16, 185, 129, 0.05); /* very light green */
  border: 1px solid rgba(16, 185, 129, 0.15);
}
.day-cell.available .day-number {
  color: #059669; 
}

.day-cell.has-location {
  background: rgba(16, 185, 129, 0.15); /* deeper green */
  border-color: #10B981;
}
.day-cell.has-location .day-location {
  color: #047857;
}

@media (max-width: 900px) {
  .calendar-grid {
    gap: 0.5rem;
  }
}

@media (max-width: 600px) {
  .month-wrapper {
    padding: 1.5rem 1rem;
  }
  .day-cell {
    min-height: 80px;
    padding: 0.25rem;
    border-radius: 8px;
  }
  .day-number {
    font-size: 1rem;
    margin-bottom: 0.2rem;
  }
  .day-location {
    font-size: 0.6rem;
  }
  .day-header {
    font-size: 0.7rem;
    letter-spacing: 0;
  }
}