/* Salesforce RAG Knowledge Library - Main Stylesheet */
/* Mobile-first responsive design with WCAG 2.1 AA compliance */

/* CSS Variables for consistent theming */
:root {
  --primary-color: #0176d3;
  --primary-hover: #014486;
  --text-color: #181818;
  --text-secondary: #666666;
  --bg-color: #ffffff;
  --bg-light: #f8f9fa;
  --border-color: #e0e0e0;
  --border-radius: 8px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --line-height-base: 1.6;
  --transition-speed: 0.2s;
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-color);
  background-color: var(--bg-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-color);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover, a:focus {
  color: var(--primary-hover);
  text-decoration: underline;
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* Header */
.site-header {
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.navbar-brand {
  flex: 0 0 auto;
}

.brand-link {
  text-decoration: none;
  color: var(--text-color);
}

.brand-link:hover, .brand-link:focus {
  text-decoration: none;
  color: var(--primary-color);
}

.site-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.navbar-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.navbar-nav li {
  margin: 0;
}

.navbar-nav a,
.navbar-nav button {
  color: var(--text-color);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  transition: background-color var(--transition-speed) ease;
}

.navbar-nav a:hover,
.navbar-nav a:focus,
.navbar-nav button:hover,
.navbar-nav button:focus {
  background-color: var(--bg-light);
  text-decoration: none;
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Search */
.search-container {
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md);
}

.search-box {
  display: flex;
  gap: var(--spacing-sm);
  max-width: 600px;
  margin: 0 auto;
}

#search-input {
  flex: 1;
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
}

#search-input:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-color: var(--primary-color);
}

.search-close {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-color);
}

.search-close:hover,
.search-close:focus {
  background-color: var(--bg-light);
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.search-results {
  margin-top: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Main Content */
.main-content {
  padding: var(--spacing-lg) 0;
  min-height: calc(100vh - 200px);
}

/* Intro Section */
.intro {
  margin: var(--spacing-md) 0 var(--spacing-lg) 0;
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-left: 4px solid var(--primary-color);
  border-radius: 4px;
}

.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-base);
  color: var(--text-color);
  margin: 0;
}

/* Domain Grid */
.domain-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0 var(--spacing-xl) 0;
}

@media (min-width: 768px) {
  .domain-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .domain-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Domain Cards */
.domain-card {
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-color);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.domain-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.domain-card:focus-within {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.domain-card h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

.domain-card h3 a {
  color: var(--primary-color);
  text-decoration: none;
}

.domain-card h3 a:hover,
.domain-card h3 a:focus {
  text-decoration: underline;
  color: var(--primary-hover);
}

.domain-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: var(--line-height-base);
}

/* Footer */
.site-footer {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
  background-color: var(--bg-light);
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.site-footer p {
  margin: var(--spacing-xs) 0;
}

.site-footer a {
  color: var(--primary-color);
}

/* Footer Note */
.footer-note {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-md);
  background: var(--bg-light);
  border-radius: 4px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* Content Styles */
.content {
  max-width: 800px;
  margin: 0 auto;
}

.content h1,
.content h2,
.content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
}

.content h2 {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-xs);
}

.content ul,
.content ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-lg);
}

.content li {
  margin-bottom: var(--spacing-xs);
}

.content code {
  background-color: var(--bg-light);
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: "Courier New", Courier, monospace;
}

.content pre {
  background-color: var(--bg-light);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  border: 1px solid var(--border-color);
}

.content pre code {
  background-color: transparent;
  padding: 0;
}

.content blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
}

.content th,
.content td {
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  text-align: left;
}

.content th {
  background-color: var(--bg-light);
  font-weight: 600;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .search-container {
    display: none;
  }
  
  .main-content {
    padding: 0;
  }
  
  a {
    color: var(--text-color);
    text-decoration: underline;
  }
  
  .domain-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: var(--bg-color);
  padding: var(--spacing-sm);
  text-decoration: none;
  z-index: 1000;
}

.skip-link:focus {
  top: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --text-secondary: #000000;
  }
}

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


/* RAG v2 Query UI */
.rag-v2-app {
  display: grid;
  gap: var(--spacing-md);
}

.rag-v2-panel {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
}

.rag-v2-panel label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.rag-v2-panel textarea,
.rag-v2-panel input,
.rag-v2-panel select {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.65rem;
  font-size: 0.95rem;
  background: #fff;
}

.rag-v2-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

@media (min-width: 960px) {
  .rag-v2-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.rag-v2-actions {
  margin-top: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-sm);
}

.rag-v2-btn {
  background: var(--primary-color);
  color: #fff;
  border: 1px solid var(--primary-color);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
}

.rag-v2-btn:hover,
.rag-v2-btn:focus {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

.rag-v2-evidence {
  display: grid;
  gap: var(--spacing-sm);
}

.rag-v2-card {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: var(--spacing-sm);
  background: var(--bg-light);
}

.rag-v2-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.rag-v2-meta {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.rag-v2-answer pre {
  white-space: pre-wrap;
  background: #f7f9fb;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: var(--spacing-sm);
}

.rag-v2-warning {
  border-left: 4px solid #c3392f;
  background: #fff6f5;
  padding: var(--spacing-sm);
  margin: var(--spacing-sm) 0;
}

.rag-v2-empty {
  color: var(--text-secondary);
}