nav {
  margin-bottom: 20px;
}

img {
  max-width: 100%;
  height: auto !important;
}

.inline {
  display: inline;
}

.page-header {
  padding-top: 20px;
  padding-bottom: 20px;
}

.comments {
  margin: 20px 0;
}

.post-body {
  margin-bottom: 30px;
}

.reply-body {
  margin-top: 10px;
}

.sidebar {
  padding-left: 30px;
}

footer {
  margin-top: 30px;
  padding: 10px 0 40px;
  color: #999;
  border-top: 1px solid #e5e5e5;
}

.page-footer {
  padding-top: 40px;
}

.tip {
  /* from github.com */
  color: black !important;
  position: relative;
  padding: 40px;
  text-align: center;
  background-color: #fafbfc;
  border: 1px solid #e1e4e8;
  border-radius: 3px;
  box-shadow: inset 0 0 10px rgba(27, 31, 35, 0.05);
}

/* Chatbot Styles */
#chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
}

.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(0, 0, 0, 0.15);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: white;
}

.chatbot-toggle:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.chatbot-toggle:active {
  transform: scale(0.95);
}

#chatbot-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 700px;
  max-width: calc(100vw - 40px);
  height: 650px;
  max-height: calc(100vh - 120px);
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform-origin: bottom right;
}

#chatbot-window.chatbot-hidden {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8) translateY(20px);
}

.chatbot-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 12px 12px 0 0;
}

.chatbot-header h5 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.chatbot-close-btn {
  background: none;
  border: none;
  color: white;
  font-size: 28px;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s ease;
  line-height: 1;
}

.chatbot-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

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

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

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

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

.message-content {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.bot-message .message-content {
  background: white;
  color: #333;
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.user-message .message-content {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border-bottom-right-radius: 4px;
}

.chatbot-input-area {
  display: flex;
  padding: 16px;
  background: white;
  border-top: 1px solid #e9ecef;
  gap: 8px;
}

#chatbot-input {
  flex: 1;
  border: 1px solid #dee2e6;
  border-radius: 24px;
  padding: 10px 16px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}

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

#chatbot-send {
  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-send:hover {
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.4);
}

#chatbot-send:active {
  transform: scale(0.95);
}

/* Scrollbar styling for chatbot */
.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

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

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

.chatbot-messages::-webkit-scrollbar-thumb:hover {
  background: #a0aec0;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  #chatbot-window {
    width: calc(100vw - 40px);
    height: calc(100vh - 120px);
  }
  
  .chatbot-toggle {
    width: 56px;
    height: 56px;
  }
}