/* ==========================================================================
   VI BOT Studio Dashboard - Main Stylesheet
   ========================================================================== */

/* CSS Custom Properties (CSS Variables) for Theme Management */
:root {
  /* Primary Theme Colors */
  --primary: #8b0000;          /* Main brand color - Blood Red */
  --secondary: #b22222;         /* Secondary brand color - Lighter Red */
  --accent: #4a0000;           /* Accent color - Dark Red */
  
  /* Background and Surface Colors */
  --bg: rgba(5,0,0,0.98);     /* Main background color */
  --text: #ffffff;             /* Primary text color */
  --card: rgba(255,255,255,0.06); /* Card background color */
  --border: rgba(255,255,255,0.12); /* Border color */
}

/* Theme Variations - Blood Red (Default) */
.theme-red {
  --primary: #8b0000;
  --secondary: #b22222;
  --accent: #4a0000;
  --bg: rgba(5,0,0,0.98);
}

/* Theme Variations - Icy Blue */
.theme-blue {
  --primary: #00bfff;
  --secondary: #40e0ff;
  --accent: #0080ff;
  --bg: rgba(0,5,10,0.98);
}

/* Theme Variations - Divine Gold */
.theme-gold {
  --primary: #ffd700;
  --secondary: #ffed4e;
  --accent: #daa520;
  --bg: rgba(5,5,0,0.98);
}

/* Theme Variations - Mystic Purple */
.theme-purple {
  --primary: #8b5cf6;
  --secondary: #a78bfa;
  --accent: #7c3aed;
  --bg: rgba(5,0,10,0.98);
}

/* ==========================================================================
   Global Reset and Base Styles
   ========================================================================== */

/* CSS Reset - Remove default margins and padding */
* { 
  box-sizing: border-box; 
  margin: 0;
  padding: 0;
}

/* Base HTML and Body Styles */
html, body { 
  height: 100%; 
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

/* ==========================================================================
   3D Background Canvas
   ========================================================================== */

/* Three.js Background Canvas */
#bg3d {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* ==========================================================================
   Main Application Layout
   ========================================================================== */

/* Main App Container */
.app {
  min-height: 100vh;
  position: relative;
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */

/* Navigation Bar Container */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(0,0,0,0.8);
  border-bottom: 1px solid var(--border);
}

/* Navigation Content Wrapper */
.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand/Logo Section */
.brand {
  display: flex;
  align-items: center;
}

/* Animated Logo with Shine Effect */
.logo-shine {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(45deg, var(--secondary), #fff, var(--primary));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 3s ease-in-out infinite;
}

/* Logo Shine Animation */
@keyframes shine {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Navigation Links Container */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Individual Navigation Links */
.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  opacity: 0.8;
  transition: all 0.3s ease;
  position: relative;
}

/* Navigation Link Hover Effects */
.nav-link:hover {
  opacity: 1;
  color: var(--secondary);
}

/* Navigation Link Underline Animation */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ==========================================================================
   Theme Selector
   ========================================================================== */

/* Theme Selector Container */
.theme-selector {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Theme Display Button */
.theme-display {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

/* Theme Display Hover Effect */
.theme-display:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}

/* Theme Color Preview */
.theme-preview {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}

/* Theme Name Display */
.theme-name {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Theme Dropdown Menu */
.theme-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.5rem;
  background: rgba(0,0,0,0.95);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.5rem;
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

/* Show Theme Dropdown on Hover */
.theme-selector:hover .theme-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Theme Option Buttons */
.theme-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  color: var(--text);
  cursor: pointer;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  text-align: left;
}

/* Theme Option Hover Effect */
.theme-option:hover {
  background: rgba(255,255,255,0.1);
}

/* Theme Color Indicators */
.theme-color {
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}

/* Theme Color Variations */
.theme-color.red { background: #8b0000; }
.theme-color.gold { background: #ffd700; }
.theme-color.blue { background: #00bfff; }
.theme-color.purple { background: #8b5cf6; }

/* ==========================================================================
   Main Content Area
   ========================================================================== */

/* Main Content Container */
.main-content {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

/* Hero Section Container */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 0;
  position: relative;
}

/* Hero Background Animation */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(139, 0, 0, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(178, 34, 34, 0.1) 0%, transparent 50%);
  animation: backgroundShift 10s ease-in-out infinite;
  z-index: -1;
}

/* Background Shift Animation */
@keyframes backgroundShift {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Hero Content Container */
.hero-content {
  max-width: 800px;
}

/* Hero Title with Animated Letters */
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Individual Letter Animation */
.letter-shine {
  display: inline-block;
  background: linear-gradient(45deg, var(--secondary), #fff, var(--primary), var(--secondary));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: letterShine 4s ease-in-out infinite;
  text-shadow: 0 0 30px rgba(255,255,255,0.5);
  transition: transform 0.3s ease;
}

/* Letter Hover Effect */
.letter-shine:hover {
  transform: scale(1.2) rotate(5deg);
}

/* Letter Shine Animation */
@keyframes letterShine {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* Hero Subtitle */
.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  opacity: 0.8;
  margin-bottom: 2rem;
  font-weight: 300;
}

/* Technology Badges Container */
.hero-badges {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

/* Individual Badge */
.badge {
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

/* Badge Hover Effect */
.badge:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* Hero Action Buttons Container */
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   Button Styles
   ========================================================================== */

/* Base Button Styles */
.btn-primary, .btn-secondary {
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Primary Button Style */
.btn-primary {
  background: linear-gradient(45deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 10px 30px rgba(139, 0, 0, 0.3);
}

/* Secondary Button Style */
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

/* Button Hover Effects */
.btn-primary:hover, .btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* Button Shine Effect */
.btn-primary::before, .btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::before, .btn-secondary:hover::before {
  left: 100%;
}

/* ==========================================================================
   Section Titles
   ========================================================================== */

/* Section Title Style */
.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  background: linear-gradient(45deg, var(--secondary), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ==========================================================================
   Features Section
   ========================================================================== */

/* Features Section Container */
.features {
  padding: 4rem 0;
}

/* Features Grid Layout */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* Individual Feature Card */
.feature-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Feature Card Top Border Animation */
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

/* Feature Card Hover Effects */
.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.1);
}

/* Feature Icon */
.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
  width: 3rem;
  height: 3rem;
  color: var(--secondary);
  transition: all 0.3s ease;
}

/* Feature Icon SVG Styles */
.feature-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Feature Icon Hover Effect */
.feature-card:hover .feature-icon {
  transform: scale(1.1);
  color: var(--primary);
}

/* Feature Card Title */
.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--secondary);
}

/* Feature Card Description */
.feature-card p {
  opacity: 0.8;
  line-height: 1.6;
}

/* ==========================================================================
   Statistics Section
   ========================================================================== */

/* Statistics Section Container */
.stats {
  padding: 4rem 0;
}

/* Statistics Grid Layout */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

/* Individual Stat Card */
.stat-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

/* Stat Card Hover Effect */
.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.1);
}

/* Stat Number Display */
.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--secondary);
  margin-bottom: 0.5rem;
  background: linear-gradient(45deg, var(--secondary), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: all 0.3s ease;
}

/* Stat Label */
.stat-label {
  font-size: 1rem;
  opacity: 0.8;
  font-weight: 500;
}

/* ==========================================================================
   Documentation Section
   ========================================================================== */

/* Documentation Section Container */
.docs {
  padding: 4rem 0;
}

/* Documentation Grid Layout */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
}

/* Individual Documentation Card */
.doc-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

/* Documentation Card Top Border Animation */
.doc-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

/* Documentation Card Hover Effects */
.doc-card:hover::before {
  transform: scaleX(1);
}

.doc-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.1);
}

/* Documentation Icon */
.doc-icon {
  width: 3rem;
  height: 3rem;
  color: var(--secondary);
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

/* Documentation Icon SVG Styles */
.doc-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Documentation Icon Hover Effect */
.doc-card:hover .doc-icon {
  transform: scale(1.1);
  color: var(--primary);
}

/* Documentation Card Title */
.doc-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--secondary);
}

/* Documentation Card Description */
.doc-card p {
  opacity: 0.8;
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* Documentation Content Container */
.doc-content {
  margin: 1rem 0;
  padding: 1rem;
  background: rgba(0,0,0,0.3);
  border-radius: 0.5rem;
  border-left: 3px solid var(--secondary);
}

/* Documentation Content Title */
.doc-content h4 {
  color: var(--secondary);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

/* Documentation Content List */
.doc-content ul {
  list-style: none;
  margin: 0.5rem 0;
}

/* Documentation Content List Items */
.doc-content li {
  padding: 0.25rem 0;
  opacity: 0.9;
  position: relative;
  padding-left: 1rem;
}

/* Documentation Content List Item Bullet */
.doc-content li::before {
  content: '•';
  color: var(--secondary);
  position: absolute;
  left: 0;
}

/* Documentation Statistics Grid */
.doc-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

/* Documentation Stat Item */
.doc-stat {
  text-align: center;
  padding: 0.5rem;
  background: rgba(255,255,255,0.05);
  border-radius: 0.5rem;
}

/* Documentation Stat Value */
.stat-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
}

/* Documentation Stat Label */
.stat-label {
  font-size: 0.75rem;
  opacity: 0.7;
}

/* Code Preview Container */
.code-preview {
  margin: 1rem 0;
  padding: 1rem;
  background: rgba(0,0,0,0.5);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
}

/* Code Preview Text */
.code-preview pre {
  margin: 0;
  color: var(--text);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.4;
}

/* Code Preview Code */
.code-preview code {
  color: var(--secondary);
}

/* FAQ Categories Container */
.faq-categories {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* FAQ Category Tag */
.faq-category {
  padding: 0.25rem 0.75rem;
  background: rgba(255,255,255,0.1);
  border-radius: 1rem;
  font-size: 0.75rem;
  color: var(--secondary);
}

/* Documentation Link */
.doc-link {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Documentation Link Hover Effect */
.doc-link:hover {
  color: var(--primary);
  transform: translateX(5px);
}

/* ==========================================================================
   Navigation Section
   ========================================================================== */

/* Navigation Section Container */
.navigation-section {
  padding: 4rem 0;
}

/* Navigation Buttons Grid */
.nav-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

/* Navigation Button */
.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem 1rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  backdrop-filter: blur(20px);
}

/* Navigation Button Hover Effect */
.nav-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  background: rgba(255,255,255,0.1);
  border-color: var(--secondary);
}

/* Navigation Button Icon */
.nav-btn svg {
  width: 2rem;
  height: 2rem;
  stroke: var(--secondary);
  transition: all 0.3s ease;
}

/* Navigation Button Icon Hover Effect */
.nav-btn:hover svg {
  stroke: var(--primary);
  transform: scale(1.1);
}

/* Navigation Button Text */
.nav-btn span {
  font-weight: 600;
  font-size: 1rem;
}

/* ==========================================================================
   Download Section
   ========================================================================== */

/* Download Section Container */
.download {
  padding: 4rem 0;
}

/* Download Content Layout */
.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 3rem;
  backdrop-filter: blur(20px);
}

/* Download Information */
.download-info h3 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--secondary);
}

/* Download Description */
.download-info p {
  font-size: 1.125rem;
  opacity: 0.8;
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* Download Features List */
.download-features {
  list-style: none;
}

/* Download Feature Item */
.download-features li {
  padding: 0.5rem 0;
  font-weight: 500;
  color: var(--secondary);
}

/* Download Actions Container */
.download-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Download Button */
.download-btn {
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  text-align: center;
}

/* Primary Download Button */
.download-btn.primary {
  background: linear-gradient(45deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 10px 30px rgba(139, 0, 0, 0.3);
}

/* Secondary Download Button */
.download-btn.secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

/* Download Button Hover Effect */
.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* ==========================================================================
   Footer
   ========================================================================== */

/* Footer Container */
.footer {
  background: rgba(0,0,0,0.8);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(20px);
  padding: 2rem 0;
  text-align: center;
}

/* Footer Content */
.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Footer Text */
.footer p {
  opacity: 0.8;
}

/* ==========================================================================
   Documentation Pages Modal
   ========================================================================== */

/* Documentation Pages Container */
.doc-pages {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  z-index: 1000;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s ease;
}

/* Active Documentation Pages */
.doc-pages.active {
  opacity: 1;
  visibility: visible;
}

/* Individual Documentation Page */
.doc-page {
  min-height: 100vh;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  display: none;
}

/* Active Documentation Page */
.doc-page.active {
  display: block;
}

/* Documentation Page Header */
.doc-header {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

/* Back Button */
.doc-back-btn {
  padding: 0.75rem 1.5rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

/* Back Button Hover Effect */
.doc-back-btn:hover {
  background: rgba(255,255,255,0.2);
  transform: translateX(-5px);
}

/* Documentation Page Title */
.doc-header h1 {
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(45deg, var(--secondary), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Documentation Content Full Width */
.doc-content-full {
  display: grid;
  gap: 3rem;
}

/* Documentation Section */
.doc-section {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 2rem;
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

/* Documentation Section Hover Effect */
.doc-section:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

/* Documentation Section Title */
.doc-section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 1rem;
}

/* Documentation Section Subtitle */
.doc-section h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

/* Documentation Section Paragraph */
.doc-section p {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.9;
  margin-bottom: 1rem;
}

/* Documentation Section List */
.doc-section ul {
  list-style: none;
  margin: 1rem 0;
}

/* Documentation Section List Item */
.doc-section li {
  padding: 0.5rem 0;
  opacity: 0.9;
  position: relative;
  padding-left: 1.5rem;
  font-size: 1.125rem;
}

/* Documentation Section List Item Arrow */
.doc-section li::before {
  content: '→';
  color: var(--secondary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

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

/* Technology Item */
.tech-item {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
}

/* Technology Item Title */
.tech-item h3 {
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

/* Technology Item Description */
.tech-item p {
  opacity: 0.8;
  font-size: 1rem;
}

/* Code Block */
.code-block {
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin: 1rem 0;
  overflow-x: auto;
}

/* Code Block Pre */
.code-block pre {
  margin: 0;
  color: var(--text);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Code Block Code */
.code-block code {
  color: var(--secondary);
}

/* FAQ Item */
.faq-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: all 0.3s ease;
}

/* FAQ Item Hover Effect */
.faq-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateX(5px);
}

/* FAQ Item Title */
.faq-item h3 {
  color: var(--secondary);
  margin-bottom: 0.75rem;
}

/* FAQ Item Description */
.faq-item p {
  opacity: 0.8;
  line-height: 1.6;
}

/* Statistics Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

/* Stat Item */
.stat-item {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
}

/* Stat Item Number */
.stat-item .stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--secondary);
  display: block;
  margin-bottom: 0.5rem;
}

/* Stat Item Label */
.stat-item .stat-label {
  font-size: 0.875rem;
  opacity: 0.7;
}

/* Resource Links Grid */
.resource-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

/* Resource Link */
.resource-link {
  display: block;
  padding: 1rem 1.5rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: var(--text);
  text-decoration: none;
  text-align: center;
  transition: all 0.3s ease;
  font-weight: 500;
}

/* Resource Link Hover Effect */
.resource-link:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
  color: var(--secondary);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Mobile and Tablet Responsive Styles */
@media (max-width: 768px) {
  /* Navigation Responsive */
  .nav-content {
    padding: 1rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  /* Main Content Responsive */
  .main-content {
    padding: 1rem;
  }
  
  /* Hero Title Responsive */
  .hero-title {
    font-size: 3rem;
  }
  
  /* Download Content Responsive */
  .download-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem;
  }
  
  /* Features Grid Responsive */
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  /* Statistics Grid Responsive */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Documentation Grid Responsive */
  .docs-grid {
    grid-template-columns: 1fr;
  }
  
  /* Navigation Buttons Responsive */
  .nav-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Documentation Header Responsive */
  .doc-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .doc-header h1 {
    font-size: 2rem;
  }
  
  /* Technology Grid Responsive */
  .tech-grid {
    grid-template-columns: 1fr;
  }
  
  /* Resource Links Responsive */
  .resource-links {
    grid-template-columns: 1fr;
  }
}