/* Corex Colorful Theme */
:root {
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #e0e6ed;
  --text-muted: #a0aec0;
  --border-color: #2d3748;
  --accent-color: #667eea;
  --accent-hover: #5a67d8;
  --accent-secondary: #f093fb;
  --accent-tertiary: #4facfe;
  --user-message-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --ai-message-bg: linear-gradient(135deg, #4e78ae 0%, #000000 100%);
  --input-bg: #2d3748;
  --input-border: #4a5568;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-tertiary: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

/* Chat Container */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background-color: var(--bg-primary);
}

/* Header */
.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-left h1 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.header-dropdown {
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
}

.header-right {
  display: flex;
  gap: 0.5rem;
}

.header-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: background-color 0.2s;
}

.header-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Message Reactions */
.reaction-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 1rem;
  transition: all 0.2s;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.reaction-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  transform: scale(1.05);
}

.reaction-btn.active {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.reaction-count {
  font-size: 0.75rem;
  font-weight: 500;
}

/* Search Bar */
.search-bar {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  box-shadow: var(--shadow);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: all 0.3s ease;
}

.search-bar.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-results {
  max-height: 200px;
  overflow-y: auto;
}

.search-result {
  padding: 0.5rem;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: background-color 0.2s;
  border: 1px solid transparent;
}

.search-result:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent-color);
}

.search-result-content {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.search-result-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Streaming Animation */
.streaming-text {
  position: relative;
}

.streaming-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent-color);
  animation: blink 1s infinite;
  margin-left: 2px;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Dropdown Menu */
.dropdown-container {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  min-width: 12rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: all 0.2s ease;
  margin-top: 0.5rem;
}

.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: none;
  border: none;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
  transition: background-color 0.2s;
  font-size: 0.875rem;
}

.dropdown-item:hover {
  background-color: var(--bg-tertiary);
}

.dropdown-item i {
  width: 1rem;
  text-align: center;
  color: var(--text-muted);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 0.25rem 0;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Welcome Message */
.welcome-message {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.welcome-message h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.welcome-message p {
  font-size: 1rem;
  color: var(--text-muted);
}

/* Message Bubbles */
.message {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  max-width: 100%;
}

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

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

.message-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.message.user .message-avatar {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.message.assistant .message-avatar {
  background: var(--gradient-secondary);
  color: white;
  box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}

.message-content {
  max-width: 70%;
  min-width: 0;
}

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

.message.assistant .message-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.message-bubble {
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  word-wrap: break-word;
  line-height: 1.5;
}

.message.user .message-bubble {
  background: var(--user-message-bg);
  color: var(--text-primary);
  border-bottom-right-radius: 0.25rem;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.message.assistant .message-bubble {
  background: var(--ai-message-bg);
  color: var(--text-primary);
  border-bottom-left-radius: 0.25rem;
  box-shadow: 0 4px 15px rgba(240, 147, 251, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.message-text {
  margin-bottom: 0.5rem;
}

.message-text p {
  margin-bottom: 0.5rem;
}

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

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

/* Source Badge */
.source-badge {
  display: inline-block;
  background-color: var(--accent-color);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

/* Message Actions */
.message-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.message:hover .message-actions {
  opacity: 1;
}

.action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 0.25rem;
  transition: color 0.2s;
}

.action-btn:hover {
  color: var(--text-primary);
}

/* Loading Message */
.loading-message {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #75ff6b;
  font-style: italic;
  font-weight: 500;
  text-shadow: 0 0 10px rgba(255, 107, 107, 0.4);
}

.typing-indicator {
  display: flex;
  gap: 0.25rem;
}

.typing-indicator span {
  width: 0.5rem;
  height: 0.5rem;
  background: #ff6b6b;
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out;
  box-shadow: 0 0 8px rgba(255, 107, 107, 0.4);
}

.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% {
    transform: translateY(0);
    opacity: 0.5;
  }
  30% {
    transform: translateY(-0.5rem);
    opacity: 1;
  }
}

/* Input Area */
.chat-input-container {
  padding: 1rem;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.chat-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 1rem;
  padding: 0.75rem 1rem;
  max-width: 48rem;
  margin: 0 auto;
  transition: border-color 0.2s;
}

.chat-input-wrapper:focus-within {
  border-color: var(--accent-color);
}

.chat-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.5;
}

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

.input-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: color 0.2s;
}

.input-btn:hover {
  color: var(--text-primary);
}

.send-btn {
  background-color: var(--accent-color);
  border: none;
  color: white;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.375rem;
  transition: background-color 0.2s;
}

.send-btn:hover {
  background-color: var(--accent-hover);
}

.send-btn:disabled {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: not-allowed;
}

/* Scroll Indicator */
.scroll-indicator {
  text-align: center;
  margin-top: 0.5rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s;
}

.scroll-indicator:hover {
  color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .chat-header {
    padding: 0.75rem 1rem;
  }
  
  .chat-messages {
    padding: 0.75rem;
  }
  
  .chat-input-container {
    padding: 0.75rem;
  }
  
  .message-content {
    max-width: 85%;
  }
  
  .header-left h1 {
    font-size: 1.125rem;
  }
}

/* OCR Modal Styles */
.modal {
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

.modal-content {
  background-color: var(--bg-secondary);
  margin: 5% auto;
  padding: 0;
  border-radius: 12px;
  width: 90%;
  max-width: 800px;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--gradient-primary);
}

.modal-header h3 {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
}

.close {
  color: var(--text-primary);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.close:hover {
  opacity: 0.7;
}

.modal-body {
  padding: 20px;
  max-height: 60vh;
  overflow-y: auto;
}

.ocr-preview {
  margin-bottom: 20px;
  text-align: center;
  border: 2px dashed var(--border-color);
  border-radius: 8px;
  padding: 20px;
  background-color: var(--bg-tertiary);
}

.ocr-preview img {
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.ocr-results {
  margin-bottom: 20px;
}

.ocr-success {
  background-color: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 8px;
  padding: 15px;
}

.ocr-success h4 {
  color: #22c55e;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
}

.extracted-text {
  background-color: var(--bg-tertiary);
  border-radius: 6px;
  padding: 12px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.ocr-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  padding: 15px;
}

.ocr-error h4 {
  color: #ef4444;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 600;
}

.ocr-error p {
  color: var(--text-secondary);
  font-size: 13px;
}

.loading {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: 20px;
}

.ocr-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: white;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(240, 147, 251, 0.4);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

/* Responsive Design for Modal */
@media (max-width: 768px) {
  .modal-content {
    width: 95%;
    margin: 10% auto;
  }
  
  .modal-body {
    padding: 15px;
  }
  
  .ocr-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

/* Hide scrollbar but keep functionality */
.chat-messages::-webkit-scrollbar {
  width: 0.25rem;
}

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

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 0.125rem;
}

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

/* Animation for new messages */
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(1rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message {
  animation: slideIn 0.3s ease-out;
}