src/components/ChatBox.css

.chatbox {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 0;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  text-align: center;
  padding: 40px 20px;
  color: var(--gray-600);
}

.empty-icon {
  font-size: 64px;
  opacity: 0.6;
}

.empty-state h2 {
  color: var(--gray-900);
  font-size: 24px;
}

.empty-state p {
  color: var(--gray-500);
  font-size: 14px;
}

.suggestions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
  width: 100%;
  max-width: 300px;
}

.suggestion-btn {
  background: var(--gray-100);
  color: var(--gray-900);
  border: 1px solid var(--gray-300);
  padding: 10px 15px;
  border-radius: 20px;
  font-size: 13px;
  text-align: left;
  transition: all 0.2s ease;
  cursor: pointer;
}

.suggestion-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.message {
  display: flex;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message.user {
  justify-content: flex-end;
}

.message.assistant {
  justify-content: flex-start;
}

.message.error {
  opacity: 0.8;
}

.message-avatar {
  font-size: 20px;
  flex-shrink: 0;
}

.message-content {
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-width: 70%;
}

.message.user .message-content {
  align-items: flex-end;
}

.message-text {
  padding: 12px 15px;
  border-radius: 15px;
  word-wrap: break-word;
  line-height: 1.5;
  font-size: 14px;
}

.message.user .message-text {
  background: var(--primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.message.assistant .message-text {
  background: var(--gray-100);
  color: var(--gray-900);
  border-bottom-left-radius: 4px;
}

.message.error .message-text {
  background: var(--error);
  color: white;
}

.message-stats {
  font-size: 11px;
  color: var(--gray-500);
  padding: 0 15px;
  text-align: right;
}

.message.user .message-stats {
  text-align: right;
}

.message.assistant .message-stats {
  text-align: left;
}

/* Typing indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 15px;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gray-400);
  animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes typing {
  0%, 60%, 100% {
    opacity: 0.5;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-8px);
  }
}

.input-area {
  display: flex;
  gap: 10px;
  padding: 15px 20px;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

.input-area textarea {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  resize: none;
  max-height: 100px;
}

.input-area textarea:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.send-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  align-self: flex-end;
  white-space: nowrap;
}

.send-btn:hover:not(:disabled) {
  background: var(--secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

@media (max-width: 768px) {
  .message-content {
    max-width: 85%;
  }

  .input-area {
    flex-direction: column;
    gap: 10px;
  }

  .send-btn {
    align-self: stretch;
  }
}