/* Modern ChatGPT-style Design */
:root {
  /* Background Colors */
  --bg-primary: #0f1419;
  --bg-secondary: #1a2332;
  --bg-tertiary: #212936;
  --bg-chat: #0f1419;
  --bg-hover: #2a3441;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  /* Accent Colors */
  --accent-primary: #10a37f;
  --accent-hover: #1a9b8e;
  
  /* Border Colors */
  --border: #374151;
  --border-light: #4b5563;
  
  /* Status Colors */
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;
  
  /* Gradients */
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #10a37f 0%, #1a9b8e 100%);
  
  /* Shadows */
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
  height: 100%;
}

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

.app {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.logo-icon {
  font-size: 20px;
  font-weight: bold;
  color: var(--accent-primary);
}

.logo-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.new-chat-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  background: var(--gradient-2);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.new-chat-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.new-chat-btn .icon {
  font-size: 18px;
  font-weight: bold;
}

.chat-history {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.history-section h3 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chat-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-item {
  padding: 12px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.chat-item:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-light);
}

.chat-preview {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-time {
  font-size: 12px;
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: white;
}

.user-name {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

.settings-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

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

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-chat);
  height: 100vh; /* Ensure full viewport height */
  overflow: hidden; /* Prevent main content from scrolling */
}

/* Chat Header */
.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  min-height: 50px;
  flex-shrink: 0;
}

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

.chat-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 16px;
}

.chat-actions {
  display: flex;
  gap: 8px;
}

.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Header action buttons (ChatGPT/Grok style) */
.header-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

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

.header-action-btn:disabled {
  background: transparent;
  color: var(--text-muted);
  cursor: not-allowed;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.sidebar-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-top-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 20;
}

.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-primary);
}

.mobile-actions {
  display: flex;
  gap: 6px;
}



.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 768px;
  margin: 0 auto;
  width: 100%;
  height: 100%; /* Take full height of parent */
  min-height: 0; /* Allow flexbox to shrink */
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden; /* Prevent horizontal scroll */
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 0; /* Force flex to calculate height */
  min-height: 0; /* Allow shrinking */
  /* Add custom scrollbar styling */
  scrollbar-width: thin;
  scrollbar-color: var(--border-light) transparent;
}

/* Custom scrollbar for webkit browsers */
.messages-container::-webkit-scrollbar {
  width: 6px;
}

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

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

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

.welcome-message {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.welcome-icon {
  font-size: 32px;
  margin-bottom: 16px;
  font-weight: bold;
  color: var(--accent-primary);
}

.welcome-message h1 {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.welcome-message p {
  font-size: 16px;
  color: var(--text-secondary);
}

/* Messages */
.message {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  max-width: 100%;
  position: relative;
  margin-bottom: 24px;
}

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

.message-actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  background: var(--bg-secondary);
  border-radius: 6px;
  padding: 4px;
  border: 1px solid var(--border);
}

.message-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.message-action:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.message-action svg {
  width: 14px;
  height: 14px;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}

.user-message .message-avatar {
  background: var(--gradient-1);
  color: white;
}

.assistant-message .message-avatar {
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-primary);
}

.error-message .message-avatar {
  background: var(--danger);
  color: white;
  font-size: 12px;
  font-weight: 600;
}

.message-content {
  flex: 1;
  min-width: 0;
}

.message-text {
  line-height: 1.6;
  font-size: 15px;
}

.user-message .message-text {
  background: var(--accent-primary);
  color: white;
  padding: 12px 16px;
  border-radius: 18px;
  display: inline-block;
  max-width: fit-content;
}

.assistant-message .message-text {
  color: var(--text-primary);
}

.message-text p,
.message-text ul,
.message-text ol,
.message-text blockquote,
.message-text pre,
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4,
.message-text h5,
.message-text h6 {
  margin: 0 0 12px 0;
}

.message-text ul,
.message-text ol {
  padding-left: 20px;
}

.message-text li {
  margin-bottom: 6px;
}

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

.message-text em {
  font-style: italic;
}

.message-text blockquote {
  border-left: 3px solid var(--accent-primary);
  padding-left: 12px;
  color: var(--text-secondary);
  background: rgba(16, 163, 127, 0.08);
  border-radius: 0 8px 8px 0;
}

.message-text pre {
  background: var(--bg-tertiary);
}

.message-text code {
  background: var(--bg-tertiary);
  padding: 2px 4px;
  border-radius: 4px;
}

.error-message .message-text {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
  padding: 12px 16px;
  border-radius: 8px;
  border-left: 3px solid var(--danger);
}

.message-meta {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Code blocks */
pre {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  margin: 8px 0;
}

code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 14px;
  color: var(--text-primary);
}

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

.input-wrapper {
  display: flex;
  align-items: end;
  gap: 12px;
  background: var(--bg-secondary);
  border: 2px solid var(--border);
  border-radius: 24px;
  padding: 4px;
  transition: border-color 0.2s ease;
}

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

.input-wrapper textarea {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.5;
  padding: 12px 16px;
  resize: none;
  font-family: inherit;
}

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

.input-wrapper button {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: none;
  background: var(--accent-primary);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  margin: 4px;
}

#settingsToggle {
  background: var(--bg-tertiary) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-secondary) !important;
}

#settingsToggle:hover:not(:disabled) {
  background: var(--bg-hover) !important;
  border-color: var(--accent-primary) !important;
  color: var(--text-primary) !important;
}

.input-wrapper button:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: scale(1.05);
}

.input-wrapper button:disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: not-allowed;
  transform: none;
}

/* Settings Panel */
.settings-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-top: 12px;
}

.settings-panel h3 {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

.settings-row {
  margin-bottom: 16px;
}

.settings-row:last-child {
  margin-bottom: 0;
}

.settings-row label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.settings-row select,
.settings-row textarea,
.settings-row input[type="range"] {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.settings-row select:focus,
.settings-row textarea:focus,
.settings-row input[type="range"]:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.settings-row input[type="checkbox"] {
  margin-right: 8px;
  accent-color: var(--accent-primary);
}

.settings-row input[type="range"] {
  padding: 0;
  height: 6px;
}

.settings-row input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
}

.settings-row input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: none;
  -moz-appearance: none;
  appearance: none;
}

/* Enhanced Linux/Cross-browser Range Slider Support */
.setting-item input[type="range"],
.settings-row input[type="range"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
}

/* Track styling for all browsers */
.setting-item input[type="range"]::-webkit-slider-track,
.settings-row input[type="range"]::-webkit-slider-track {
  width: 100%;
  height: 6px;
  background: var(--border-light);
  border-radius: 3px;
  border: none;
}

.setting-item input[type="range"]::-moz-range-track,
.settings-row input[type="range"]::-moz-range-track {
  width: 100%;
  height: 6px;
  background: var(--border-light);
  border-radius: 3px;
  border: none;
}

.setting-item input[type="range"]::-ms-track,
.settings-row input[type="range"]::-ms-track {
  width: 100%;
  height: 6px;
  background: transparent;
  border-color: transparent;
  color: transparent;
}

/* Thumb styling for all browsers */
.setting-item input[type="range"]::-webkit-slider-thumb,
.settings-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.setting-item input[type="range"]::-moz-range-thumb,
.settings-row input[type="range"]::-moz-range-thumb {
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  -moz-appearance: none;
  appearance: none;
}

.setting-item input[type="range"]::-ms-thumb,
.settings-row input[type="range"]::-ms-thumb {
  height: 16px;
  width: 16px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Progress/fill styling */
.setting-item input[type="range"]::-moz-range-progress,
.settings-row input[type="range"]::-moz-range-progress {
  background: var(--accent-primary);
  height: 6px;
  border-radius: 3px;
}

.setting-item input[type="range"]::-ms-fill-lower,
.settings-row input[type="range"]::-ms-fill-lower {
  background: var(--accent-primary);
  border-radius: 3px;
}

.setting-item input[type="range"]::-ms-fill-upper,
.settings-row input[type="range"]::-ms-fill-upper {
  background: var(--border-light);
  border-radius: 3px;
}

/* Advanced Settings Layout */
.settings-columns,
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 16px;
}

.settings-column {
  min-width: 0;
}

.settings-column h4 {
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 12px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.setting-group {
  margin-bottom: 20px;
}

.setting-item,
.settings-row {
  margin-bottom: 12px;
}

.setting-item label,
.settings-row label {
  display: block;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 6px;
}

.setting-item select,
.setting-item input[type="text"],
.setting-item input[type="range"],
.setting-item textarea,
.settings-row select,
.settings-row input[type="text"],
.settings-row input[type="range"],
.settings-row textarea {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.setting-item select:focus,
.setting-item input[type="text"]:focus,
.setting-item textarea:focus,
.settings-row select:focus,
.settings-row input[type="text"]:focus,
.settings-row textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.15);
}

.settings-row input[type="range"],
.setting-item input[type="range"] {
  padding: 0;
  height: 6px;
}

/* Checkbox Groups */
.checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
}

.checkbox-item:hover {
  background: var(--bg-secondary);
  border-color: var(--border-light);
}

.checkbox-item input[type="checkbox"] {
  margin-right: 8px;
  width: auto;
  cursor: pointer;
  accent-color: var(--accent-primary);
}

.checkbox-item label,
.checkbox-item span {
  margin: 0;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-primary);
  flex: 1;
}

/* Range Slider */
.range-container,
.slider-container {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-value,
#temperatureValue {
  min-width: 30px;
  font-size: 12px;
  color: var(--text-primary);
  background: var(--accent-primary);
  padding: 4px 8px;
  border-radius: 4px;
  text-align: center;
  font-weight: 600;
}

.slider-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Preset Buttons */
.preset-buttons,
.settings-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
  margin: 20px 0 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.preset-btn,
.btn-preset,
.btn-reset {
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.preset-btn:hover,
.btn-preset:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
}

.reset-btn,
.btn-reset {
  background: #ef4444;
  color: white;
  border-color: #ef4444;
}

.reset-btn:hover,
.btn-reset:hover {
  background: #dc2626;
  border-color: #dc2626;
}

.settings-row-wide {
  grid-column: 1 / -1;
  margin-top: 16px;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .settings-columns,
  .settings-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .checkbox-group {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .preset-buttons,
  .settings-actions {
    grid-template-columns: 1fr 1fr;
  }
  
  .settings-slide-panel {
    width: 100% !important;
    right: -100% !important;
  }
  
  .settings-slide-panel.open {
    right: 0 !important;
  }
  
  .settings-overlay.active {
    display: block;
  }
}

@media (max-width: 480px) {
  .settings-panel {
    padding: 12px;
    margin-top: 8px;
  }
  
  .preset-buttons,
  .settings-actions {
    grid-template-columns: 1fr;
  }
  
  .setting-item,
  .settings-row {
    margin-bottom: 10px;
  }
  
  .settings-columns,
  .settings-grid {
    gap: 16px;
  }
  
  .checkbox-group {
    gap: 6px;
  }
}

/* Right Slide Panel Styles */
.settings-slide-panel {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  z-index: 9999;
  transition: right 0.3s ease;
  overflow-y: auto;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.settings-slide-panel.open {
  right: 0 !important;
}

.settings-slide-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
  position: sticky;
  top: 0;
  z-index: 10000;
}

.settings-slide-header h3 {
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.settings-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

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

.settings-slide-content {
  padding: 20px;
}

/* Enhanced Domain Info Card */
.domain-info-card {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 8px;
  padding: 12px 16px;
  margin-top: 8px;
  color: white;
  font-size: 14px;
  line-height: 1.4;
}

.domain-info-card strong {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
}

.domain-info-card small {
  opacity: 0.9;
  font-size: 12px;
}

/* Enhanced Preset Buttons */
.preset-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-top: 16px;
}

.preset-btn {
  padding: 10px 12px;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.preset-btn:hover {
  border-color: var(--accent-primary);
  background: var(--bg-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.preset-btn:active {
  transform: translateY(0);
}

.preset-btn.reset-btn {
  background: linear-gradient(135deg, #ff6b6b, #ee5a52);
  color: white;
  border-color: transparent;
}

.preset-btn.reset-btn:hover {
  background: linear-gradient(135deg, #ff5252, #e53935);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255, 107, 107, 0.3);
}

/* Enhanced Setting Items */
.setting-item {
  margin-bottom: 20px;
}

.setting-item label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.4;
}

.setting-item small {
  display: block;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 6px;
  line-height: 1.3;
}

.setting-item select,
.setting-item textarea {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s ease;
}

.setting-item select:focus,
.setting-item textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Enhanced Checkbox Group */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border-light);
  background: var(--bg-primary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.checkbox-item input[type="checkbox"]:checked {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.checkbox-item label {
  font-weight: 500;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  margin: 0;
}

/* Setting Groups */
.setting-group {
  margin: 24px 0;
  padding: 16px;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

.setting-group h4 {
  margin: 0 0 12px 0;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9998;
  display: none;
  transition: opacity 0.3s ease;
}

.settings-overlay.active {
  display: block;
}

/* Loading Animation */
.loading-message .message-content {
  padding: 12px 0;
}

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

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  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);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    overflow-y: auto;
    height: auto;
  }

  .sidebar {
    position: fixed;
    left: -280px;
    top: 0;
    height: 100vh;
    z-index: 1000;
    transition: left 0.3s ease;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.4);
  }
  
  .sidebar.open {
    left: 0;
  }
  
  .app {
    flex-direction: column;
    min-height: 100vh;
    height: auto;
  }

  .main-content {
    margin-left: 0;
    height: auto;
    min-height: calc(100vh - 56px);
    overflow: visible;
  }
  
  .chat-container {
    max-width: 100%;
  }
  
  .chat-header {
    padding: 10px 16px;
  }

  .messages-container {
    padding: 16px;
    padding-bottom: 120px;
  }
  
  .input-container {
    padding: 16px;
    position: sticky;
    bottom: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(6px);
    z-index: 30;
  }

  .sidebar-toggle {
    display: flex;
  }

  .mobile-top-bar {
    display: flex;
  }
}

/* Focus and Accessibility */
button:focus,
select:focus,
textarea:focus,
input:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.3s ease-in;
}

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

/* Dark theme toggle support */
[data-theme="dark"] {
  --bg-primary: #0f1419;
  --bg-secondary: #1a2332;
  --bg-tertiary: #212936;
}

[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
}