@layer base {
  html { scroll-behavior: smooth; }
}

#mic-btn.listening {
  background-color: #e11d48;
  animation: pulse 1.2s ease-in-out infinite;
}
#mic-btn.speaking {
  background-color: #16a34a;
}
#mic-btn.paused {
  background-color: #475569;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.5); }
  50%      { box-shadow: 0 0 0 14px rgba(225, 29, 72, 0); }
}

.alt-chip {
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background: #e2e8f0;
  font-size: 0.8rem;
  font-weight: 600;
  color: #0f172a;
  cursor: pointer;
  transition: background 0.15s;
}
.alt-chip:hover { background: #cbd5e1; }