/* DocumentX - Modern Responsive Design System */
/* Inspired by the AI Compliance Assistant - Professional & Clean */

:root {
    /* Primary Brand Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #a5b4fc;
    
    /* Secondary Colors */
    --secondary-color: #764ba2;
    --accent-color: #00ff88;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
    
    /* Breakpoints */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-2xl: 1400px;
  }
  
  /* Global Reset & Base Styles */
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  html {
    font-size: 16px;
    scroll-behavior: smooth;
    height: 100%;
  }
  
  body {
    font-family: var(--font-family-base);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    min-height: 100vh;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  
  /* Typography System */
  .h1, .h2, .h3, .h4, .h5, .h6,
  h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
  }
  
  .h1, h1 { font-size: 2.5rem; }
  .h2, h2 { font-size: 2rem; }
  .h3, h3 { font-size: 1.75rem; }
  .h4, h4 { font-size: 1.5rem; }
  .h5, h5 { font-size: 1.25rem; }
  .h6, h6 { font-size: 1.125rem; }
  
  .text-xs { font-size: 0.75rem; }
  .text-sm { font-size: 0.875rem; }
  .text-base { font-size: 1rem; }
  .text-lg { font-size: 1.125rem; }
  .text-xl { font-size: 1.25rem; }
  .text-2xl { font-size: 1.5rem; }
  .text-3xl { font-size: 1.875rem; }
  .text-4xl { font-size: 2.25rem; }
  
  /* Layout Components */
  .container-fluid {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
  }
  
  .container {
    width: 100%;
    padding-right: var(--spacing-md);
    padding-left: var(--spacing-md);
    margin-right: auto;
    margin-left: auto;
  }
  
  @media (min-width: 576px) {
    .container { max-width: 540px; }
  }
  
  @media (min-width: 768px) {
    .container { max-width: 720px; }
    .container-fluid, .container {
      padding-right: var(--spacing-lg);
      padding-left: var(--spacing-lg);
    }
  }
  
  @media (min-width: 992px) {
    .container { max-width: 960px; }
  }
  
  @media (min-width: 1200px) {
    .container { max-width: 1140px; }
  }
  
  @media (min-width: 1400px) {
    .container { max-width: 1320px; }
  }
  
  /* Header/Navigation */
  .main-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: var(--transition-normal);
  }
  
  .navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none !important;
  }
  
  .navbar-nav .nav-link {
    font-weight: 500;
    color: var(--gray-700);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
  }
  
  .navbar-nav .nav-link:hover,
  .navbar-nav .nav-link.active {
    color: var(--primary-color);
    background: var(--gray-100);
  }
  
  .navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: var(--radius-sm);
  }
  
  /* Main Content Layout */
  .main-wrapper {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
  }
  
  .main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
  }
  
  .content-section {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--gray-200);
  }
  
  /* Card Components */
  .card-modern {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition-normal);
  }
  
  .card-modern:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
  }
  
  .card-modern .card-header {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-lg);
    font-weight: 600;
    color: var(--gray-900);
  }
  
  .card-modern .card-body {
    padding: var(--spacing-xl);
  }
  
  /* Button System */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.875rem;
    line-height: 1.5;
    gap: var(--spacing-xs);
  }
  
  .btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--shadow-sm);
  }
  
  .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: var(--white);
  }
  
  .btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
  }
  
  .btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-800);
  }
  
  .btn-success {
    background: var(--success-color);
    color: var(--white);
  }
  
  .btn-warning {
    background: var(--warning-color);
    color: var(--white);
  }
  
  .btn-danger {
    background: var(--error-color);
    color: var(--white);
  }
  
  .btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
  }
  
  .btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
  }
  
  /* Form Controls */
  .form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-900);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
  }
  
  .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  }
  
  .form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--gray-700);
  }
  
  /* Document Cards */
  .document-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
  }
  
  .document-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
  }
  
  .document-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
  }
  
  .document-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .document-title {
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    font-size: 1.125rem;
  }
  
  .document-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: var(--spacing-xs);
  }
  
  .document-body {
    padding: var(--spacing-lg);
  }
  
  /* Status Badges */
  .badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    gap: var(--spacing-xs);
  }
  
  .badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
  }
  
  .badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
  }
  
  .badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
  }
  
  .badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info-color);
  }
  
  .badge-primary {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
  }
  
  /* Responsive Grid System */
  .grid {
    display: grid;
    gap: var(--spacing-lg);
  }
  
  .grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
  .grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  
  @media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
      grid-template-columns: 1fr;
    }
  }
  
  @media (min-width: 768px) and (max-width: 992px) {
    .grid-cols-3,
    .grid-cols-4 {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  /* Additional Markdown Styles */
  .markdown-body hr,
  .prose hr {
    border: none;
    border-top: 1px solid #e5e7eb;
    margin: 2em 0;
  }
  
  .markdown-body img,
  .prose img {
    max-width: 100%;
    border-radius: 0.4em;
    margin: 1em 0;
    box-shadow: 0 2px 8px rgba(60,60,60,0.07);
  }
  
  .document-title-text {
    font-size: 1.625rem;
    font-weight: 600;
    color: #26272e;
  }
  
  /* Enhanced table styles for markdown content */
  .markdown-body table,
  .prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    background: transparent;
  }
  
  .markdown-body th,
  .prose th,
  .markdown-body td,
  .prose td {
    border: 1px solid #e5e7eb;
    padding: 0.5em 0.75em;
    text-align: left;
  }
  
  .markdown-body th,
  .prose th {
    background: #f1f5fb;
    font-weight: 400;
  }
  
  /* Additional responsive adjustments */
  @media (max-width: 767px) {
    .markdown-body,
    .prose {
      padding: 1rem 0.5rem;
      font-size: 1rem;
    }
  }
  
  /* Utility Classes */
  .flex { display: flex; }
  .items-center { align-items: center; }
  .justify-between { justify-content: space-between; }
  .justify-center { justify-content: center; }
  .gap-sm { gap: var(--spacing-sm); }
  .gap-md { gap: var(--spacing-md); }
  .gap-lg { gap: var(--spacing-lg); }
  
  .p-sm { padding: var(--spacing-sm); }
  .p-md { padding: var(--spacing-md); }
  .p-lg { padding: var(--spacing-lg); }
  .p-xl { padding: var(--spacing-xl); }
  
  .m-sm { margin: var(--spacing-sm); }
  .m-md { margin: var(--spacing-md); }
  .m-lg { margin: var(--spacing-lg); }
  .m-xl { margin: var(--spacing-xl); }
  
  .mb-sm { margin-bottom: var(--spacing-sm); }
  .mb-md { margin-bottom: var(--spacing-md); }
  .mb-lg { margin-bottom: var(--spacing-lg); }
  .mb-xl { margin-bottom: var(--spacing-xl); }
  
  .text-center { text-align: center; }
  .text-left { text-align: left; }
  .text-right { text-align: right; }
  
  .text-primary { color: var(--primary-color); }
  .text-secondary { color: var(--gray-600); }
  .text-success { color: var(--success-color); }
  .text-warning { color: var(--warning-color); }
  .text-danger { color: var(--error-color); }
  
  .bg-primary { background: var(--primary-gradient); }
  .bg-secondary { background: var(--gray-100); }
  .bg-white { background: var(--white); }
  
  .rounded { border-radius: var(--radius-md); }
  .rounded-lg { border-radius: var(--radius-lg); }
  .rounded-xl { border-radius: var(--radius-xl); }
  
  .shadow-sm { box-shadow: var(--shadow-sm); }
  .shadow-md { box-shadow: var(--shadow-md); }
  .shadow-lg { box-shadow: var(--shadow-lg); }
  
  /* Mobile-First Responsive Design */
  @media (max-width: 767px) {
    .main-content {
      padding: var(--spacing-md) 0;
    }
    
    .content-section {
      padding: var(--spacing-lg);
      margin-bottom: var(--spacing-lg);
      border-radius: var(--radius-lg);
    }
    
    .card-modern .card-body {
      padding: var(--spacing-lg);
    }
    
    .document-card {
      margin-bottom: var(--spacing-md);
    }
    
    .h1, h1 { font-size: 2rem; }
    .h2, h2 { font-size: 1.75rem; }
    .h3, h3 { font-size: 1.5rem; }
    
    .navbar-nav .nav-link {
      padding: var(--spacing-sm);
    }
    
    .btn {
      width: 100%;
      justify-content: center;
    }
    
    .btn + .btn {
      margin-top: var(--spacing-sm);
    }
    
    .flex-mobile-column {
      flex-direction: column;
    }
    
    .gap-mobile-sm {
      gap: var(--spacing-sm);
    }
  }
  
  /* Tablet Responsive */
  @media (min-width: 768px) and (max-width: 991px) {
    .main-content {
      padding: var(--spacing-lg) 0;
    }
    
    .grid-tablet-2 {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  /* Desktop Enhancements */
  @media (min-width: 992px) {
    .main-content {
      padding: var(--spacing-2xl) 0;
    }
    
    .content-section {
      padding: var(--spacing-2xl);
    }
    
    .card-modern .card-body {
      padding: var(--spacing-2xl);
    }
  }
  
  /* Loading States */
  .loading {
    position: relative;
    overflow: hidden;
  }
  
  .loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: loading 1.5s infinite;
  }
  
  @keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
  }
  
  /* Smooth Animations */
  .fade-in {
    animation: fadeIn 0.5s ease-in-out;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  .slide-up {
    animation: slideUp 0.3s ease-out;
  }
  
  @keyframes slideUp {
    from { transform: translateY(10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }
  
  /* Dark Mode Support */
  @media (prefers-color-scheme: dark) {
    :root {
      --gray-50: #1f2937;
      --gray-100: #374151;
      --gray-200: #4b5563;
      --gray-800: #f3f4f6;
      --gray-900: #ffffff;
    }
    
    body {
      background: var(--gray-800);
      color: var(--gray-100);
    }
    
    .main-header {
      background: var(--gray-900);
      border-bottom-color: var(--gray-700);
    }
    
    .content-section,
    .card-modern,
    .document-card {
      background: var(--gray-900);
      border-color: var(--gray-700);
    }
  }
  
  /* Print Styles */
  @media print {
    .main-header,
    .navbar,
    #smart-chat-widget {
      display: none !important;
    }
    
    .main-content {
      padding: 0;
    }
    
    .content-section {
      box-shadow: none;
      border: 1px solid #ccc;
      margin-bottom: 1rem;
    }
  }