/* Enhanced Sphinx Modal Styles for AI Chat */

/* Design System Variables - Based on Refactoring UI Principles */
:root {
  /* Spacing Scale - Systematic spacing based on 4px increments */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;
  --space-4xl: 40px;
  --space-5xl: 48px;
  
  /* Typography Scale - Proportional type system */
  --text-xs: 0.75rem;  /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem;   /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem;  /* 20px */
  
  /* Line Heights - Inverse relationship to size */
  --leading-tight: 1.2;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;
  
  /* HSL Color System - Better for manipulation */
  --sphinx-primary-hue: 267;
  --sphinx-primary-sat: 92%;
  
  /* Primary Color Shades */
  --sphinx-primary-50: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 97%);
  --sphinx-primary-100: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 95%);
  --sphinx-primary-200: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 85%);
  --sphinx-primary-300: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 75%);
  --sphinx-primary-400: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 65%);
  --sphinx-primary-500: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 50%);
  --sphinx-primary-600: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 45%);
  --sphinx-primary-700: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 35%);
  --sphinx-primary-800: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 25%);
  --sphinx-primary-900: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 15%);
  
  /* Warm Greys - Subtle warmth for better feel */
  --sphinx-grey-50: hsl(30, 20%, 97%);
  --sphinx-grey-100: hsl(30, 15%, 95%);
  --sphinx-grey-200: hsl(30, 10%, 85%);
  --sphinx-grey-300: hsl(30, 8%, 75%);
  --sphinx-grey-400: hsl(30, 6%, 65%);
  --sphinx-grey-500: hsl(30, 5%, 50%);
  --sphinx-grey-600: hsl(30, 6%, 40%);
  --sphinx-grey-700: hsl(30, 8%, 30%);
  --sphinx-grey-800: hsl(30, 10%, 20%);
  --sphinx-grey-900: hsl(30, 15%, 10%);
  
  /* Semantic Colors with Better Contrast */
  --sphinx-error-50: hsl(0, 80%, 97%);
  --sphinx-error-100: hsl(0, 80%, 95%);
  --sphinx-error-500: hsl(0, 80%, 50%);
  --sphinx-error-700: hsl(0, 80%, 35%);
  --sphinx-error-800: hsl(0, 80%, 25%);
  
  --sphinx-success-50: hsl(120, 60%, 97%);
  --sphinx-success-100: hsl(120, 60%, 95%);
  --sphinx-success-500: hsl(120, 60%, 50%);
  --sphinx-success-700: hsl(120, 60%, 35%);
  
  /* Shadows for Depth - Emulate light source from top */
  --shadow-xs: 0 1px 2px hsla(0, 0%, 0%, 0.05);
  --shadow-sm: 0 1px 3px hsla(0, 0%, 0%, 0.1), 0 1px 2px hsla(0, 0%, 0%, 0.06);
  --shadow-md: 0 4px 6px hsla(0, 0%, 0%, 0.07), 0 2px 4px hsla(0, 0%, 0%, 0.06);
  --shadow-lg: 0 10px 15px hsla(0, 0%, 0%, 0.1), 0 4px 6px hsla(0, 0%, 0%, 0.05);
  --shadow-xl: 0 20px 25px hsla(0, 0%, 0%, 0.1), 0 10px 10px hsla(0, 0%, 0%, 0.04);
  --shadow-inset: inset 0 2px 4px hsla(0, 0%, 0%, 0.06);
  
  /* Border Radius Scale */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-pill: 50px;
  
  /* Font Family */
  --sphinx-font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  
  /* Legacy compatibility - map to new system */
  --sphinx-primary: var(--sphinx-primary-500);
  --sphinx-primary-hover: var(--sphinx-primary-600);
  --sphinx-primary-soft: var(--sphinx-primary-100);
  --sphinx-primary-light: var(--sphinx-primary-300);
  --sphinx-background: white;
  --sphinx-surface: var(--sphinx-grey-50);
  --sphinx-border: var(--sphinx-grey-200);
  --sphinx-text-primary: var(--sphinx-grey-900);
  --sphinx-text-secondary: var(--sphinx-grey-600);
  --sphinx-text-tertiary: var(--sphinx-grey-400);
  --sphinx-shadow-color: hsla(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 50%, 0.2);
  --sphinx-radius-lg: var(--radius-lg);
  --sphinx-radius-md: var(--radius-md);
  --sphinx-radius-sm: var(--radius-sm);
  --sphinx-radius-pill: var(--radius-pill);
}

/* Dark mode theme - Enhanced with new system */
@media (prefers-color-scheme: dark) {
  :root {
    /* Primary colors remain HSL-based but adjusted for dark mode */
    --sphinx-primary-50: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 10%);
    --sphinx-primary-100: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 15%);
    --sphinx-primary-200: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 25%);
    --sphinx-primary-300: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 35%);
    --sphinx-primary-400: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 45%);
    --sphinx-primary-500: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 55%);
    --sphinx-primary-600: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 65%);
    --sphinx-primary-700: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 75%);
    --sphinx-primary-800: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 85%);
    --sphinx-primary-900: hsl(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 95%);
    
    /* Dark greys with blue tint for coolness */
    --sphinx-grey-50: hsl(220, 20%, 10%);
    --sphinx-grey-100: hsl(220, 15%, 15%);
    --sphinx-grey-200: hsl(220, 10%, 25%);
    --sphinx-grey-300: hsl(220, 8%, 35%);
    --sphinx-grey-400: hsl(220, 6%, 45%);
    --sphinx-grey-500: hsl(220, 5%, 55%);
    --sphinx-grey-600: hsl(220, 6%, 65%);
    --sphinx-grey-700: hsl(220, 8%, 75%);
    --sphinx-grey-800: hsl(220, 10%, 85%);
    --sphinx-grey-900: hsl(220, 15%, 95%);
    
    /* Update legacy mappings for dark mode */
    --sphinx-primary: var(--sphinx-primary-500);
    --sphinx-primary-hover: var(--sphinx-primary-600);
    --sphinx-background: var(--sphinx-grey-50);
    --sphinx-surface: var(--sphinx-grey-100);
    --sphinx-border: var(--sphinx-grey-200);
    --sphinx-text-primary: var(--sphinx-grey-900);
    --sphinx-text-secondary: var(--sphinx-grey-600);
    --sphinx-text-tertiary: var(--sphinx-grey-400);
    --sphinx-shadow-color: hsla(var(--sphinx-primary-hue), var(--sphinx-primary-sat), 55%, 0.15);
  }
}

/* Chat-specific styles */
.sphinx-ai-chat {
  display: flex;
  flex-direction: column;
  height: min(500px, calc(100vh - 200px)); /* Responsive height with minimum space for modal chrome */
  min-height: 200px; /* Ensure minimum usable space */
  position: relative;
}

.sphinx-chat-messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--space-2xl) 30px;
  padding-bottom: max(100px, 20%); /* Dynamic space for overlapping chat input */
  background: var(--sphinx-background);
  /* Remove max-height to use flex: 1 instead */
}

.sphinx-message {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeInUp 0.3s ease forwards;
}

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

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

.sphinx-message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  background: var(--sphinx-surface);
  border: 2px solid var(--sphinx-border);
}

.user-message .sphinx-message-avatar {
  background: var(--sphinx-primary);
  color: white;
  border-color: var(--sphinx-primary);
}

.sphinx-message-content {
  max-width: 75%;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-2xl);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  background: var(--sphinx-surface);
  color: var(--sphinx-text-primary);
  border: 1px solid var(--sphinx-border);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.user-message .sphinx-message-content {
  background: var(--sphinx-primary);
  color: white;
  border-color: var(--sphinx-primary);
  border-bottom-right-radius: var(--radius-sm);
}

.ai-message .sphinx-message-content {
  border-bottom-left-radius: var(--radius-sm);
}

.sphinx-message-text {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Markdown rendering styles for AI messages */
.ai-message .sphinx-message-text {
  white-space: normal; /* Allow normal text flow for rendered HTML */
}

.sphinx-message-text h1,
.sphinx-message-text h2,
.sphinx-message-text h3 {
  margin: var(--space-lg) 0 var(--space-md) 0;
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--sphinx-text-primary);
}

.sphinx-message-text h1 {
  font-size: var(--text-xl);
}

.sphinx-message-text h2 {
  font-size: var(--text-lg);
}

.sphinx-message-text h3 {
  font-size: var(--text-base);
}

.sphinx-message-text p {
  margin: var(--space-md) 0;
  line-height: var(--leading-relaxed);
}

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

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

.sphinx-message-text code {
  background: var(--sphinx-grey-100);
  color: var(--sphinx-text-primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 0.9em;
}

.sphinx-message-text pre {
  background: var(--sphinx-grey-100);
  border-radius: 6px;
  padding: var(--space-lg);
  margin: var(--space-md) 0;
  overflow-x: auto;
  border: 1px solid var(--sphinx-border);
}

.sphinx-message-text pre code {
  background: none;
  padding: 0;
  border-radius: 0;
  color: var(--sphinx-text-primary);
  font-size: 0.85em;
  line-height: 1.5;
}

.sphinx-message-text ul,
.sphinx-message-text ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-xl);
}

.sphinx-message-text li {
  margin: var(--space-xs) 0;
  line-height: var(--leading-relaxed);
}

.sphinx-message-text a {
  color: var(--sphinx-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.sphinx-message-text a:hover {
  color: var(--sphinx-primary-hover);
}

.sphinx-message-text br {
  line-height: var(--leading-relaxed);
}

/* Chat input area */
.sphinx-chat-input {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  border-top: 1px solid var(--sphinx-border);
  padding: var(--space-2xl) 30px;
  background: var(--sphinx-surface);
  border-radius: 0;
  z-index: 10;
}

/* Mode selector - Legacy styles removed, using new VitePress-style system */

/* Input container - Updated for new mode selection system */
.sphinx-input-container {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  position: relative;
}

.sphinx-input-container textarea {
  flex: 1;
  height: 44px;
  min-height: 44px;
  max-height: 120px;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--sphinx-border);
  border-radius: var(--sphinx-radius-md);
  resize: none;
  font-family: var(--sphinx-font-sans);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  background: var(--sphinx-background);
  color: var(--sphinx-text-primary);
  transition: all 0.2s ease;
  overflow-y: auto;
  box-shadow: var(--shadow-inset);
  box-sizing: border-box;
  vertical-align: top;
}

.sphinx-input-container textarea:focus {
  outline: none;
  outline-offset: -2px;
  border-color: #CF9BFF;
  box-shadow: 0 0 0 3px rgba(170, 0, 255, 0.1);
}

.sphinx-input-container textarea::placeholder {
  color: var(--sphinx-text-tertiary);
  font-weight: 400;
}

.sphinx-submit-btn {
  padding: var(--space-md) var(--space-xl);
  background: var(--sphinx-primary);
  color: white;
  border: 2px solid var(--sphinx-primary);
  border-radius: var(--sphinx-radius-md);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--sphinx-font-sans);
  transition: all 0.2s ease;
  white-space: nowrap;
  min-width: 80px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  box-shadow: var(--shadow-md);
}

.sphinx-submit-btn:hover:not(:disabled) {
  background: var(--sphinx-primary-hover);
  border-color: var(--sphinx-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.sphinx-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  background: var(--sphinx-text-secondary);
  border-color: var(--sphinx-text-secondary);
}

/* Sources display */
.sphinx-sources {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--sphinx-border);
}

.sphinx-sources h4 {
  margin: 0 0 8px 0;
  font-size: 12px;
  color: var(--sphinx-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sphinx-source {
  margin-bottom: 6px;
}

.sphinx-source a {
  color: var(--sphinx-primary);
  text-decoration: none;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  transition: all 0.2s ease;
}

.sphinx-source a:hover {
  text-decoration: underline;
  color: var(--sphinx-primary-hover);
}

.sphinx-source a::before {
  content: "🔗";
  font-size: 10px;
  opacity: 0.7;
}

/* Loading states */
.sphinx-message.loading .sphinx-message-text {
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0.8;
  font-style: italic;
}

.sphinx-message.loading .sphinx-message-text::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 2px solid var(--sphinx-border);
  border-top: 2px solid var(--sphinx-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Streaming indicator */
.sphinx-streaming-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--sphinx-primary);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0% { opacity: 0.3; }
  50% { opacity: 1; }
  100% { opacity: 0.3; }
}

/* Empty state */
.sphinx-chat-empty {
  text-align: center;
  padding: var(--space-lg) var(--space-md) var(--space-md) var(--space-md);
  color: var(--sphinx-text-secondary);
}

.sphinx-chat-empty h3 {
  margin: 0 0 var(--space-xs) 0;
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--sphinx-text-primary);
}

.sphinx-chat-empty p {
  margin: 0 0 var(--space-md) 0;
  font-size: var(--text-xs);
  line-height: var(--leading-snug);
  color: var(--sphinx-text-tertiary);
}

.sphinx-suggested-prompts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  max-width: 400px;
  margin: 0 auto;
}

.sphinx-suggested-prompt {
  padding: var(--space-sm) var(--space-md);
  background: var(--sphinx-surface);
  border: 1px solid var(--sphinx-border);
  border-radius: var(--sphinx-radius-md);
  cursor: pointer;
  font-size: var(--text-xs);
  color: var(--sphinx-text-primary);
  transition: all 0.2s ease;
  text-align: center;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
}

.sphinx-suggested-prompt::before {
  content: "💡";
  margin-right: var(--space-xs);
  font-size: var(--text-sm);
}

.sphinx-suggested-prompt:hover {
  background: var(--sphinx-primary);
  color: white;
  border-color: var(--sphinx-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Error states */
.sphinx-message.error .sphinx-message-content {
  background: var(--sphinx-error-50);
  border-color: var(--sphinx-error-100);
  color: var(--sphinx-error-700);
}

.sphinx-error-icon {
  color: #e53e3e;
  margin-right: 6px;
}

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

.sphinx-chat-messages::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 3px;
}

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

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

/* Very short viewport heights - ensure modal is usable */
@media (max-height: 500px) {
  .sphinx-ai-chat {
    height: calc(100vh - 120px); /* Use most of available space */
    min-height: 120px; /* Absolute minimum */
  }
  
  .sphinx-chat-messages {
    padding: var(--space-md) 30px;
    padding-bottom: max(80px, 25%); /* Proportionally larger space for input */
  }
  
  .sphinx-chat-input {
    padding: var(--space-md) 30px; /* Reduced padding for short screens */
  }
  
  .sphinx-input-container textarea {
    min-height: 36px; /* Smaller input on short screens */
    max-height: 80px;
  }
}

/* Responsive design */
@media (max-width: 900px) {
  .sphinx-ai-chat {
    height: min(420px, calc(100vh - 180px)); /* Responsive height for medium screens */
    min-height: 180px;
  }
  
  .sphinx-chat-messages {
    padding: 18px 30px;
    padding-bottom: 95px; /* Bottom padding for medium screens */
    /* Remove min/max-height, use flex: 1 */
  }
  
  .sphinx-message-content {
    max-width: 82%;
    padding: 13px 16px;
  }
}

@media (max-width: 768px) {
  .sphinx-ai-chat {
    height: min(380px, calc(100vh - 160px)); /* Responsive height for tablets */
    min-height: 160px;
  }
  
  .sphinx-chat-messages {
    padding: 16px 30px;
    padding-bottom: 90px; /* Bottom padding for tablets */
    /* Remove min/max-height, use flex: 1 */
  }
  
  .sphinx-message-content {
    max-width: 85%;
    padding: 12px 14px;
  }
  
  /* Old mode selector styles removed */
  
  .sphinx-input-container {
    flex-direction: row;
    gap: var(--space-sm);
    align-items: center;
  }
  
  .sphinx-input-left-controls {
    height: 40px;
  }
  
  .sphinx-mode-selector-wrapper {
    height: 40px;
  }
  
  .sphinx-mode-badge {
    height: 40px;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-xs);
  }
  
  .sphinx-input-container textarea {
    height: 40px;
    min-height: 40px;
  }
  
  .sphinx-submit-btn {
    height: 40px;
    padding: var(--space-sm) var(--space-md);
    min-width: 60px;
    font-size: var(--text-xs);
  }
  
  .sphinx-suggested-prompts {
    max-width: 100%;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  
  .sphinx-suggested-prompt {
    font-size: 11px;
    padding: 6px 8px;
    min-height: 32px;
  }
}

@media (max-width: 480px) {
  .sphinx-ai-chat {
    height: min(320px, calc(100vh - 140px)); /* Responsive height for mobile */
    min-height: 140px;
  }
  
  .sphinx-chat-input {
    padding: 16px 20px;
  }
  
  .sphinx-chat-messages {
    padding: 12px 20px;
    padding-bottom: 80px; /* Smaller bottom padding for mobile */
    /* Uses flex: 1 for full available height */
  }
  
  .sphinx-message {
    gap: 8px;
    margin-bottom: 16px;
  }
  
  .sphinx-message-avatar {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  
  .sphinx-input-left-controls {
    height: 36px;
  }
  
  .sphinx-mode-selector-wrapper {
    height: 36px;
  }
  
  .sphinx-input-container textarea {
    height: 36px;
    min-height: 36px;
    padding: var(--space-sm) var(--space-md);
    font-size: 11px;
  }
  
  .sphinx-submit-btn {
    height: 36px;
    padding: var(--space-xs) var(--space-sm);
    min-width: 50px;
    font-size: 11px;
  }
  
  .sphinx-chat-empty {
    padding: 12px 8px 8px 8px;
  }
  
  .sphinx-suggested-prompts {
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    max-width: 100%;
  }
  
  .sphinx-suggested-prompt {
    font-size: 10px;
    padding: 4px 6px;
    min-height: 28px;
  }
}