.chip {
  border: 1px solid #1e293b;
  border-radius: 9999px;
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  color: #cbd5e1;
  background: #111726;
  transition: all 0.15s ease;
}
.chip:hover {
  border-color: rgba(56, 225, 176, 0.6);
  color: #38e1b0;
}
.chip[aria-pressed='true'] {
  border-color: #38e1b0;
  color: #0b0f17;
  background: #38e1b0;
}

.bubble-user {
  margin-left: auto;
  max-width: 85%;
  border-radius: 1rem 1rem 0.25rem 1rem;
  background: #1c2536;
  padding: 0.7rem 1rem;
  font-size: 0.9375rem;
  line-height: 1.55;
}
.bubble-ai {
  max-width: 92%;
  border-radius: 1rem 1rem 1rem 0.25rem;
  border: 1px solid #1e293b;
  background: #111726;
  padding: 0.85rem 1.1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.dots span {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 3px;
  border-radius: 9999px;
  background: #38e1b0;
  animation: blink 1.2s infinite;
}
.dots span:nth-child(2) { animation-delay: 0.2s; }
.dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink {
  0%, 60%, 100% { opacity: 0.25; }
  30% { opacity: 1; }
}

#input::-webkit-scrollbar { width: 0; }