.month-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 0 0.5rem;
}

.month-tab {
  border: 1px solid rgba(102, 126, 234, 0.4);
  background: white;
  color: #4a5568;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.9rem;
  cursor: pointer;
}

.month-tab:hover {
  background: rgba(102, 126, 234, 0.1);
}

.month-tab.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-color: transparent;
}

.today-section {
  margin: 1rem 0 0;
  padding: 1rem;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(246, 173, 85, 0.25), rgba(237, 137, 54, 0.25));
  border: 1px solid rgba(237, 137, 54, 0.5);
}

.today-section h4 {
  margin: 0 0 0.5rem;
  color: #9c4221;
}

.birthday-list {
  padding: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.today-section .birthday-list {
  padding: 0;
}

.birthday-row {
  display: grid;
  grid-template-columns: 3.5rem 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.birthday-row.is-today {
  border-left: 4px solid #ed8936;
}

.birthday-row.is-soon {
  border-left: 4px solid #667eea;
}

.birthday-row.is-past {
  opacity: 0.6;
}

.birthday-day {
  font-size: 1.5rem;
  font-weight: 700;
  color: #667eea;
  text-align: center;
}

.birthday-name {
  font-weight: 600;
  color: #2d3748;
}

.birthday-details {
  font-size: 0.85rem;
  color: #718096;
}

.birthday-age {
  font-size: 0.95rem;
  color: #4a5568;
  white-space: nowrap;
}

.birthday-empty,
.missing-note {
  padding: 1rem 0 0;
  color: #718096;
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .birthday-row {
    grid-template-columns: 2.5rem 1fr;
  }
  .birthday-age {
    grid-column: 2;
  }
}