.chat-widget {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

.chat-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.4);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(13, 110, 253, 0.5);
}

.chat-window {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 380px;
  height: 550px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.3s ease;
}

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

.chat-header {
  background: linear-gradient(135deg, #0d6efd 0%, #0b5ed7 100%);
  color: white;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.chat-header-content {
  display: flex;
  align-items: center;
  font-weight: 600;
  font-size: 16px;
}

.chat-close-btn {
  background: none;
  border: none;
  color: white;
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.chat-close-btn:hover {
  opacity: 1;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: #f8f9fa;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: #cbd5e0;
  border-radius: 3px;
}

.chat-message {
  display: flex;
  animation: fadeIn 0.3s ease;
}

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

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

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

.message-content {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 12px;
  word-wrap: break-word;
  line-height: 1.5;
  font-size: 14px;
}

.chat-message.user .message-content {
  background: #0d6efd;
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-message.assistant .message-content {
  background: white;
  color: #2d3748;
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.typing-indicator .message-content {
  background: white;
  padding: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}

.typing-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cbd5e0;
  animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
  0%, 60%, 100% {
    transform: translateY(0);
    background: #cbd5e0;
  }
  30% {
    transform: translateY(-8px);
    background: #0d6efd;
  }
}

.chat-input-container {
  padding: 16px;
  background: white;
  border-top: 1px solid #e2e8f0;
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.chat-input {
  flex: 1;
  border: 1px solid #e2e8f0;
  border-radius: 24px;
  padding: 10px 16px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.chat-input:focus {
  border-color: #0d6efd;
}

.chat-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #0d6efd;
  border: none;
  color: white;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-send-btn:hover {
  background: #0b5ed7;
  transform: scale(1.05);
}

.chat-send-btn:active {
  transform: scale(0.95);
}

@media (max-width: 768px) {
  .chat-window {
    width: 100%;
    height: 100%;
    bottom: 0;
    right: 0;
    border-radius: 0;
  }
  
  .chat-toggle {
    bottom: 16px;
    right: 16px;
  }
}