/* ============================= */
/* === CHAT ASSISTANT STYLES === */
/* ============================= */

/* CSS Variables for Chat */
:root {
  --chat-primary: #1f3a93;
  --chat-secondary: #47a447;
  --chat-bg: #ffffff;
  --chat-bg-secondary: #f8fafc;
  --chat-text: #1f2937;
  --chat-text-secondary: #6b7280;
  --chat-border: #e5e7eb;
  --chat-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  --chat-shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
  --chat-radius: 12px;
  --chat-radius-lg: 16px;
}

/* Chat Assistant Container */
.chat-assistant {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

/* Ensure main content doesn't get covered by chat button */
@media (max-width: 768px) {
  /* Add bottom padding to prevent content from being hidden behind chat button */
  body {
    padding-bottom: 80px;
  }
}

/* Floating Chat Button */
.chat-toggle {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--chat-shadow);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  border: none;
  outline: none;
}

.chat-toggle:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--chat-shadow-hover);
}

.chat-toggle:active {
  transform: translateY(0) scale(0.95);
}

.chat-icon {
  width: 24px;
  height: 24px;
  color: white;
  transition: transform 0.3s ease;
}

.chat-toggle:hover .chat-icon {
  transform: scale(1.1);
}

/* Notification Badge */
.chat-notification {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 20px;
  height: 20px;
  background: #ef4444;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  font-weight: 600;
  border: 2px solid white;
  animation: pulse 2s infinite;
}

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

/* Chat Window */
.chat-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 380px;
  height: 500px;
  background: var(--chat-bg);
  border-radius: var(--chat-radius-lg);
  box-shadow: var(--chat-shadow-hover);
  border: 1px solid var(--chat-border);
  display: none;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(10px);
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chat-window.open {
  display: flex;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Chat Header */
.chat-header {
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
  color: white;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.chat-avatar {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
}

.chat-avatar svg {
  width: 20px;
  height: 20px;
  color: white;
}

.chat-header-text h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
}

.chat-header-text p {
  margin: 0;
  font-size: 12px;
  opacity: 0.9;
  line-height: 1.2;
}

.chat-close {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-close:hover {
  background: rgba(255, 255, 255, 0.1);
}

.chat-close svg {
  width: 18px;
  height: 18px;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  background: var(--chat-bg-secondary);
  scroll-behavior: smooth;
}

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

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

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--chat-border);
  border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
  background: var(--chat-text-secondary);
}

/* Welcome Message */
.chat-welcome {
  margin-bottom: 20px;
}

.welcome-message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.welcome-avatar {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.welcome-avatar svg {
  width: 16px;
  height: 16px;
  color: white;
}

.welcome-text {
  background: white;
  padding: 16px;
  border-radius: var(--chat-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--chat-border);
  max-width: 280px;
}

.welcome-text p {
  margin: 0 0 12px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--chat-text);
}

.welcome-text ul {
  margin: 0 0 12px 0;
  padding-left: 16px;
  font-size: 13px;
  color: var(--chat-text-secondary);
}

.welcome-text li {
  margin-bottom: 4px;
}

/* Message Styles */
.message {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
  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%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.message.user .message-avatar {
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
}

.message.assistant .message-avatar {
  background: linear-gradient(135deg, var(--chat-secondary), var(--chat-primary));
}

.message-avatar svg {
  width: 16px;
  height: 16px;
  color: white;
}

.message-content {
  max-width: 280px;
  padding: 12px 16px;
  border-radius: var(--chat-radius);
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.message.user .message-content {
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
  color: white;
  border-bottom-right-radius: 4px;
}

.message.assistant .message-content {
  background: white;
  color: var(--chat-text);
  border: 1px solid var(--chat-border);
  border-bottom-left-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Markdown Content Styles */
.message-content .markdown-p {
  margin: 0 0 8px 0;
  line-height: 1.5;
}

.message-content .markdown-p:last-child {
  margin-bottom: 0;
}

.message-content .markdown-h1 {
  font-size: 18px;
  font-weight: 700;
  margin: 12px 0 8px 0;
  color: var(--chat-primary);
  line-height: 1.3;
}

.message-content .markdown-h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 10px 0 6px 0;
  color: var(--chat-primary);
  line-height: 1.3;
}

.message-content .markdown-h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 8px 0 4px 0;
  color: var(--chat-primary);
  line-height: 1.3;
}

.message-content .markdown-ul,
.message-content .markdown-ol {
  margin: 8px 0;
  padding-left: 20px;
}

.message-content .markdown-li {
  margin: 4px 0;
  line-height: 1.4;
}

.message-content .inline-code {
  background: #f1f5f9;
  color: #e11d48;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 13px;
  border: 1px solid #e2e8f0;
}

.message-content .code-block {
  background: #f8fafc;
  color: #334155;
  padding: 12px;
  border-radius: 6px;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid #e2e8f0;
  overflow-x: auto;
  display: block;
  margin: 8px 0;
}

.message-content pre {
  margin: 8px 0;
  background: #f8fafc;
  border-radius: 6px;
  overflow-x: auto;
}

.message-content .markdown-link {
  color: var(--chat-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.message-content .markdown-link:hover {
  border-bottom-color: var(--chat-primary);
}

.message-content strong {
  font-weight: 600;
  color: var(--chat-text);
}

.message-content em {
  font-style: italic;
  color: var(--chat-text-secondary);
}

/* Typing Indicator */
/* Inline typing bubble inside messages list */
.message.typing .message-content {
  background: var(--chat-bg-secondary);
  border: 1px solid var(--chat-border);
}

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

.typing-indicator span {
  width: 6px;
  height: 6px;
  background: var(--chat-text-secondary);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
  0%, 80%, 100% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Chat Input */
.chat-input-container {
  background: white;
  border-top: 1px solid var(--chat-border);
  padding: 16px 20px;
}

.chat-input-wrapper {
  display: flex;
  gap: 12px;
  align-items: center;
}

.chat-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--chat-border);
  border-radius: 24px;
  font-size: 14px;
  outline: none;
  transition: all 0.2s ease;
  background: var(--chat-bg-secondary);
}

.chat-input:focus {
  border-color: var(--chat-primary);
  box-shadow: 0 0 0 3px rgba(31, 58, 147, 0.1);
  background: white;
}

.chat-input::placeholder {
  color: var(--chat-text-secondary);
}

.chat-send {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  outline: none;
}

.chat-send:hover:not(:disabled) {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(31, 58, 147, 0.3);
}

.chat-send:active:not(:disabled) {
  transform: scale(0.95);
}

.chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.chat-send svg {
  width: 18px;
  height: 18px;
}

/* Error Message */
.error-message {
  background: #fef2f2;
  color: #dc2626;
  padding: 12px 16px;
  border-radius: var(--chat-radius);
  border: 1px solid #fecaca;
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.error-message svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Loading Message */
.loading-message {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: white;
  border-radius: var(--chat-radius);
  border: 1px solid var(--chat-border);
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--chat-text-secondary);
}

.loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--chat-border);
  border-top: 2px solid var(--chat-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .chat-assistant {
    bottom: 12px;
    right: 12px;
    z-index: 1001; /* Ensure it's above other content */
  }
  
  .chat-toggle {
    width: 52px;
    height: 52px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }
  
  .chat-window {
    width: 92vw;
    height: 70vh;
    bottom: 72px;
    right: 0;
    left: auto;
    top: auto;
    max-width: none;
    max-height: none;
    position: fixed;
    border-radius: var(--chat-radius-lg);
  }
  
  .chat-messages {
    padding: 16px;
    max-height: calc(70vh - 140px);
    overflow-y: auto;
  }
  
  .message-content {
    max-width: calc(92vw - 100px);
  }
  
  .welcome-text {
    max-width: calc(92vw - 100px);
  }
  
  /* Ensure chat doesn't interfere with page content */
  body.chat-open {
    overflow: hidden;
  }
}

@media (max-width: 480px) {
  .chat-assistant {
    bottom: 10px;
    right: 10px;
  }
  
  .chat-toggle {
    width: 46px;
    height: 46px;
  }
  
  .chat-window {
    width: 94vw;
    height: 68vh;
    bottom: 64px;
    right: 0;
    left: auto;
    top: auto;
    max-height: none;
    border-radius: 14px;
  }
  
  .chat-messages {
    padding: 12px;
    max-height: calc(68vh - 132px);
  }
  
  .message-content {
    max-width: calc(94vw - 90px);
  }
  
  .welcome-text {
    max-width: calc(94vw - 90px);
  }
}

@media (max-width: 360px) {
  .chat-window {
    width: 95vw;
    height: 64vh;
    bottom: 60px;
    right: 0;
    left: auto;
    top: auto;
    border-radius: 12px;
  }
  
  .message-content {
    max-width: calc(95vw - 80px);
  }
  
  .welcome-text {
    max-width: 170px;
  }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
  :root {
    --chat-bg: #1f2937;
    --chat-bg-secondary: #111827;
    --chat-text: #f9fafb;
    --chat-text-secondary: #9ca3af;
    --chat-border: #374151;
  }
  
  .chat-input {
    background: var(--chat-bg-secondary);
    color: var(--chat-text);
  }
  
  .chat-input:focus {
    background: var(--chat-bg);
  }
  
  .message.assistant .message-content {
    background: var(--chat-bg);
    border-color: var(--chat-border);
  }
  
  .welcome-text {
    background: var(--chat-bg);
    border-color: var(--chat-border);
  }
  
  /* Dark mode markdown styles */
  .message-content .inline-code {
    background: #374151;
    color: #fbbf24;
    border-color: #4b5563;
  }
  
  .message-content .code-block {
    background: #374151;
    color: #f3f4f6;
    border-color: #4b5563;
  }
  
  .message-content pre {
    background: #374151;
  }
  
  .message-content .markdown-link {
    color: #60a5fa;
  }
  
  .message-content .markdown-link:hover {
    border-bottom-color: #60a5fa;
  }
}