/* ==========================================================================
   DISTORT Documentation Premium Dark-Theme Styling
   ========================================================================== */

/* Design Tokens & Custom Properties */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  
  --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --gradient-purple: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  --gradient-dark: linear-gradient(180deg, #111827 0%, #0a0e17 100%);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --sidebar-width: 280px;
  --content-max-width: 900px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  --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, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.15);
}

/* Base Styles & Resets */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.625;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Layout Grid */
.layout-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 2.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  overflow-y: auto;
  transition: transform var(--transition-normal);
}

.sidebar-header {
  margin-bottom: 3rem;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  color: #ffffff;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glow);
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.025em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  flex: 1;
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 0.5rem;
}

.nav-item {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  transform: translateX(4px);
}

.nav-item.active {
  background-color: rgba(59, 130, 246, 0.08);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.2);
  font-weight: 600;
}

.sidebar-footer {
  margin-top: auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.github-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.65rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.github-btn:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--border-hover);
}

/* Main Content Wrapper */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.content-wrapper {
  padding: 3.5rem 4rem;
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

/* Header & Breadcrumb */
.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.page-header {
  margin-bottom: 2.5rem;
}

.page-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2.75rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 720px;
}

.title-divider {
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--bg-primary) 100%);
  margin-top: 1.5rem;
  opacity: 0.3;
}

/* Typography Inside Content */
.page-content p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-content h2 {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.page-content h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.85rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.page-content ul, .page-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.page-content li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

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

.page-content a {
  color: #ffffff;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.3);
  text-underline-offset: 4px;
  transition: all var(--transition-fast);
}

.page-content a:hover {
  color: var(--accent-cyan);
  text-decoration-color: var(--accent-cyan);
}

/* Fenced Code Blocks & Code Highlighting */
.page-content pre {
  background-color: var(--bg-secondary) !important;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}

.page-content code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background-color: rgba(255, 255, 255, 0.06);
  padding: 0.2rem 0.4rem;
  border-radius: 6px;
  color: var(--accent-cyan);
}

.page-content pre code {
  background-color: transparent;
  padding: 0;
  border-radius: 0;
  color: inherit;
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Callout / Alert Box styling */
.page-content blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--accent-blue);
  background-color: rgba(59, 130, 246, 0.05);
  border-radius: 0 12px 12px 0;
}

.page-content blockquote p {
  margin-bottom: 0;
  color: var(--text-primary);
  font-size: 1rem;
}

/* Alert types */
blockquote.warning {
  border-left-color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.05);
}

blockquote.tip {
  border-left-color: #10b981;
  background-color: rgba(16, 185, 129, 0.05);
}

/* Tables styling */
.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.95rem;
  background-color: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.page-content th {
  background-color: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-weight: 600;
  text-align: left;
  padding: 1rem 1.25rem;
  border-bottom: 2px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.page-content td {
  padding: 1rem 1.25rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.page-content tr:last-child td {
  border-bottom: none;
}

.page-content tr:hover td {
  background-color: rgba(255, 255, 255, 0.01);
  color: var(--text-primary);
}

/* Mermaid Diagrams style */
.mermaid {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

/* Homepage specific styles */
.homepage-container {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.hero-section {
  padding: 3rem 0 1.5rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--accent-cyan);
  padding: 0.4rem 0.9rem;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 30%, #3b82f6 70%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.4rem;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.5;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(59, 130, 246, 0.25);
  filter: brightness(1.1);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-tertiary {
  color: var(--text-secondary);
  border: 1px solid transparent;
}

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

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(6, 182, 212, 0.05);
}

.feature-card-icon {
  width: 48px;
  height: 48px;
  background-color: rgba(6, 182, 212, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
}

.feature-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.feature-card-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Footer styling */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  margin-top: auto;
}

.footer-content {
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 4rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Mobile responsive navigation header */
.mobile-header {
  display: none;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.5rem;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 200;
}

.menu-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem;
}

.mobile-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    width: 260px;
  }
  
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 15px 0 30px rgba(0, 0, 0, 0.5);
  }
  
  .mobile-header {
    display: flex;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .content-wrapper {
    padding: 2.5rem 1.5rem;
  }
  
  .footer-content {
    padding: 0 1.5rem;
  }
  
  .hero-title {
    font-size: 3.25rem;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }
  
  .btn {
    width: 100%;
    text-align: center;
  }
}