/**
 * ===================================
 * CHATBOT STYLES
 * Styles cho AI chatbot widget
 * ===================================
 */

/* Chatbot Container */
.chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Chatbot Toggle Button */
.chatbot-toggle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  position: relative;
}

.chatbot-toggle:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(102, 126, 234, 0.5);
}

.chatbot-toggle i {
  color: white;
  font-size: 28px;
}

.chatbot-toggle.active i.fa-comments {
  display: none;
}

.chatbot-toggle i.fa-times {
  display: none;
}

.chatbot-toggle.active i.fa-times {
  display: block;
}

/* Notification Badge */
.chatbot-badge {
  position: absolute;
  top: -5px;
  right: -5px;
  background: #ff4757;
  color: white;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* Chatbot Window */
.chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  height: 550px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 0.3s ease;
}

.chatbot-window.active {
  display: flex;
}

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

/* Chatbot Header */
.chatbot-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.chatbot-avatar {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.chatbot-info h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.chatbot-info p {
  margin: 4px 0 0;
  font-size: 13px;
  opacity: 0.9;
}

.chatbot-status {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2ecc71;
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Chatbot Messages */
.chatbot-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  background: #f8f9fa;
}

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

.chatbot-messages::-webkit-scrollbar-track {
  background: #f1f1f1;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Message Bubble */
.message {
  margin-bottom: 16px;
  display: flex;
  gap: 10px;
  animation: fadeIn 0.3s ease;
}

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

.message.user {
  flex-direction: row-reverse;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
  flex-shrink: 0;
}

.message.user .message-avatar {
  background: #3498db;
}

.message-content {
  max-width: 70%;
}

.message-bubble {
  background: white;
  padding: 12px 16px;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  line-height: 1.5;
  font-size: 14px;
  color: #333;
}

.message.user .message-bubble {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.message-time {
  font-size: 11px;
  color: #999;
  margin-top: 4px;
  padding: 0 8px;
}

/* Typing Indicator */
.typing-indicator {
  display: none;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.typing-indicator.active {
  display: flex;
}

.typing-dots {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.typing-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #999;
  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);
    opacity: 0.5;
  }
  30% {
    transform: translateY(-8px);
    opacity: 1;
  }
}

/* Quick Replies */
.quick-replies {
  padding: 0 20px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-reply-btn {
  background: white;
  border: 1px solid #e0e0e0;
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #667eea;
}

.quick-reply-btn:hover {
  background: #667eea;
  color: white;
  border-color: #667eea;
}

/* Chatbot Input */
.chatbot-input {
  padding: 16px 20px;
  background: white;
  border-top: 1px solid #e0e0e0;
  display: flex;
  gap: 10px;
  align-items: center;
}

.chatbot-input input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid #e0e0e0;
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

.chatbot-input input:focus {
  border-color: #667eea;
}

.chatbot-input button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.chatbot-input button:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.chatbot-input button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chatbot-input button i {
  font-size: 18px;
}

/* Welcome Message */
.welcome-message {
  text-align: center;
  padding: 40px 20px;
}

.welcome-message .chatbot-avatar {
  width: 60px;
  height: 60px;
  font-size: 32px;
  margin: 0 auto 16px;
}

.welcome-message h4 {
  margin: 0 0 8px;
  color: #333;
  font-size: 18px;
}

.welcome-message p {
  margin: 0;
  color: #666;
  font-size: 14px;
  line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 480px) {
  .chatbot-window {
    width: calc(100vw - 40px);
    height: calc(100vh - 100px);
    max-height: 600px;
  }

  .chatbot-container {
    bottom: 10px;
    right: 10px;
  }
}

/* Error Message */
.error-message {
  background: #ffe5e5;
  color: #d32f2f;
  padding: 12px 16px;
  border-radius: 8px;
  margin: 12px 20px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.error-message i {
  font-size: 16px;
}