.rl-email-unread-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  margin-left: 6px;
  padding: 0 5px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  color: #fff;
  background: #e34b5f;
  box-shadow:
    0 0 0 2px rgba(227, 75, 95, 0.12),
    0 0 14px rgba(227, 75, 95, 0.32);
  font-size: 10px;
  font-weight: 850;
  line-height: 1;
  vertical-align: middle;
}

.rl-email-unread-badge[hidden] {
  display: none !important;
}

.rl-email-has-unread .rl-email-unread-badge {
  animation: rl-email-badge-pulse 1.8s ease-in-out infinite;
}

.rl-email-unread-badge.rl-email-unread-pop {
  animation:
    rl-email-badge-pop 420ms ease-out 1,
    rl-email-badge-pulse 1.8s ease-in-out 420ms infinite;
}

@keyframes rl-email-badge-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 2px rgba(227, 75, 95, 0.10),
      0 0 10px rgba(227, 75, 95, 0.22);
  }
  50% {
    box-shadow:
      0 0 0 3px rgba(227, 75, 95, 0.18),
      0 0 18px rgba(227, 75, 95, 0.48);
  }
}

@keyframes rl-email-badge-pop {
  0% { transform: scale(0.72); }
  60% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .rl-email-has-unread .rl-email-unread-badge,
  .rl-email-unread-badge.rl-email-unread-pop {
    animation: none;
  }
}