/* CSS Variables for Theming */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --success-color: #10b981;
  --error-color: #ef4444;
  --warning-color: #f59e0b;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Monaco, Consolas, monospace;
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    --border-light: #334155;
    --border-medium: #475569;
  }
}

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  min-height: 100vh;
  padding: 1rem;
  overflow-x: hidden;
}

/* Layout Components */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-primary);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  min-height: calc(100vh - 2rem);
  display: flex;
  flex-direction: column;
}

.app-header {
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--secondary-color) 100%);
  color: white;
  padding: 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.app-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.app-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.app-header p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

.main-content {
  flex: 1;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Input Section */
.input-section {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  border: 1px solid var(--border-light);
}

.input-form {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.input-field {
  flex: 1;
  min-width: 300px;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius);
  font-size: 1rem;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 120px;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Examples Section */
.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.example-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.example-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.example-card::before {
  content: '💡';
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-size: 1.25rem;
  opacity: 0.7;
}

/* Loading State */
.loading-container {
  display: none;
  text-align: center;
  padding: 3rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-light);
}

.loading-container.active {
  display: block;
}

.spinner {
  width: 3rem;
  height: 3rem;
  border: 3px solid var(--border-light);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

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

.loading-text {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Results Section */
.results-container {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
}

.results-container.active {
  display: flex;
}

.result-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.result-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
}

.result-content {
  padding: 1.5rem;
  line-height: 1.7;
}

.answer-card {
  border-left: 4px solid var(--success-color);
}

.debug-card {
  border-left: 4px solid var(--primary-color);
}

.error-card {
  border-left: 4px solid var(--error-color);
  background: #fef2f2;
}

.debug-content {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.5;
  background: #1a1a1a;
  color: #00ff00;
  padding: 1rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  white-space: pre-wrap;
  max-height: 500px;
  overflow-y: auto;
}

.toggle-btn {
  background: var(--secondary-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 0.875rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

.toggle-btn:hover {
  background: var(--text-primary);
}

/* Status Indicators */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.status-success {
  background: #d1fae5;
  color: #065f46;
}

.status-error {
  background: #fee2e2;
  color: #991b1b;
}

.status-processing {
  background: #dbeafe;
  color: #1e40af;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: 0.5rem;
  }
  
  .app-container {
    min-height: calc(100vh - 1rem);
  }
  
  .app-header {
    padding: 1.5rem;
  }
  
  .main-content {
    padding: 1rem;
    gap: 1.5rem;
  }
  
  .input-section {
    padding: 1.5rem;
  }
  
  .input-form {
    flex-direction: column;
  }
  
  .input-field {
    min-width: auto;
  }
  
  .examples-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: 1rem;
  }
  
  .main-content {
    padding: 1rem;
  }
  
  .input-section {
    padding: 1rem;
  }
  
  .result-header, 
  .result-content {
    padding: 1rem;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    padding: 0;
  }
  
  .app-container {
    box-shadow: none;
    border: 1px solid #000;
  }
  
  .app-header {
    background: #000 !important;
    color: white !important;
  }
  
  .debug-card {
    display: none;
  }
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mt-4 {
  margin-top: 1rem;
}

/* Debug Flow Visualization */
.debug-flow {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.debug-section {
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--background-alt);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.debug-section h5 {
    margin: 0 0 1rem 0;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 600;
}

.debug-item {
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    background: var(--background-color);
    border-radius: 4px;
    font-size: 0.9rem;
}

.debug-item strong {
    color: var(--text-color);
    font-weight: 600;
}

/* Route-specific styling */
.route-including {
    background: #e8f5e8;
    color: #2d5a2d;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
}

.route-without {
    background: #e8f0ff;
    color: #1e3a8a;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
}

.route-personal {
    background: #fff3e8;
    color: #a0522d;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
}

/* Query object styling */
.query-object {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.4;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #333;
}

/* Chunks preview */
.chunks-preview {
    max-height: 300px;
    overflow-y: auto;
}

.chunk-item {
    background: var(--background-color);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
    border-left: 3px solid var(--accent-color);
    font-size: 0.85rem;
    line-height: 1.4;
}

/* Raw data sections */
.raw-chunks, .raw-debug {
    margin-top: 1rem;
}

.raw-chunks summary, .raw-debug summary {
    cursor: pointer;
    padding: 0.5rem;
    background: var(--background-alt);
    border-radius: 4px;
    font-weight: 600;
    color: var(--primary-color);
}

.raw-chunks summary:hover, .raw-debug summary:hover {
    background: var(--border-color);
}

.chunks-raw, .debug-raw {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.3;
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
    margin-top: 0.5rem;
    border: 1px solid #333;
    white-space: pre-wrap;
}

/* Status indicators */
.status-secure {
    color: #10b981;
    font-weight: 600;
}

.status-clean {
    color: #3b82f6;
    font-weight: 600;
}

/* Dark mode adjustments for debug */
@media (prefers-color-scheme: dark) {
    .debug-section {
        background: rgba(255, 255, 255, 0.05);
        border-left-color: var(--primary-color);
    }
    
    .debug-item {
        background: rgba(255, 255, 255, 0.03);
    }
    
    .chunk-item {
        background: rgba(255, 255, 255, 0.03);
        border-left-color: var(--accent-color);
    }
}

/* Mobile responsiveness for debug */
@media (max-width: 768px) {
    .debug-section {
        padding: 0.75rem;
        margin-bottom: 1.5rem;
    }
    
    .debug-item {
        padding: 0.4rem;
        font-size: 0.85rem;
    }
    
    .query-object, .chunks-raw, .debug-raw {
        font-size: 0.75rem;
        max-height: 250px;
    }
    
    .chunk-item {
        padding: 0.5rem;
        font-size: 0.8rem;
    }
}