@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

#countdown > div {
  animation: fadeInUp 0.8s ease-out forwards;
  opacity: 0;
}

#countdown > div:nth-child(1) { animation-delay: 0.1s; }
#countdown > div:nth-child(2) { animation-delay: 0.2s; }
#countdown > div:nth-child(3) { animation-delay: 0.3s; }
#countdown > div:nth-child(4) { animation-delay: 0.4s; }

#form-feedback.success { color: #6ee7b7; }
#form-feedback.error { color: #f87171; }
#submit-btn.loading { opacity: 0.7; pointer-events: none; }

.chat-bubble {
  animation: fadeInUp 0.4s ease-out forwards;
  opacity: 0;
}

.chat-bubble:nth-child(1) { animation-delay: 0.3s; }
.chat-bubble:nth-child(2) { animation-delay: 0.6s; }
.chat-bubble:nth-child(3) { animation-delay: 0.9s; }
.chat-bubble:nth-child(4) { animation-delay: 1.2s; }

details summary::-webkit-details-marker { display: none; }

.lang-pill {
  cursor: pointer;
  padding: 0.25rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 9999px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.6);
  transition: all 0.2s ease;
  font-family: inherit;
  letter-spacing: 0.02em;
}

.lang-pill:hover {
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
}

.lang-pill.active {
  background: rgba(16, 185, 129, 0.25);
  border-color: rgba(16, 185, 129, 0.5);
  color: #6ee7b7;
}