@keyframes pulse-red {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.03); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

@keyframes float {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -50px) scale(1.1); }
  66%  { transform: translate(-20px, 20px) scale(0.9); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0)    scale(1); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- Thinking Animation --- */
.thinking-bubble {
  display: flex;
  align-items: center;
  gap: 4px;
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 8px 12px;
  animation: fadeIn 0.3s ease-out;
}

.thinking-dots {
  display: flex;
  gap: 3px;
}

.thinking-dot {
  width: 4px;
  height: 4px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: thinking-bounce 1.4s infinite ease-in-out both;
}

.thinking-dot:nth-child(1) { animation-delay: -0.32s; }
.thinking-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes thinking-bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1.0); }
}