/* CSS Custom Properties for Theming */
:root {
  /* Light Theme Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-accent: #e2e8f0;

  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-accent: #3b82f6;

  --border-primary: #e2e8f0;
  --border-secondary: #cbd5e1;

  --accent-primary: #3b82f6;
  --accent-secondary: #10b981;
  --accent-tertiary: #f59e0b;
  --accent-error: #ef4444;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-accent: #475569;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-accent: #60a5fa;

  --border-primary: #334155;
  --border-secondary: #475569;

  --accent-primary: #60a5fa;
  --accent-secondary: #34d399;
  --accent-tertiary: #fbbf24;
  --accent-error: #f87171;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Sidebar */
.sidebar {
  width: 280px;
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--bg-primary);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo {
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-lg);
  color: white;
  font-weight: 600;
}

.sidebar-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.nav-link.active {
  background-color: var(--bg-accent);
  color: var(--accent-primary);
  border-left-color: var(--accent-primary);
}

.nav-icon {
  font-size: 1.125rem;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-primary);
  background-color: var(--bg-primary);
}

.version-info {
  margin-bottom: 1rem;
}

.version {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.status {
  display: block;
  font-size: 0.75rem;
  color: var(--accent-secondary);
  font-weight: 500;
}

.external-links {
  display: flex;
  gap: 0.5rem;
}

.external-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.external-link:hover {
  background-color: var(--accent-primary);
  color: white;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: 280px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Mobile Sidebar */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }
}

.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 3px 0;
  transition: 0.3s;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }
}

/* Header */
.page-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover {
  background-color: var(--bg-accent);
}

.theme-icon {
  font-size: 1.125rem;
}

.search-container {
  position: relative;
}

.search-input {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  padding: 0.5rem 2.5rem 0.5rem 1rem;
  font-size: 0.875rem;
  width: 250px;
  transition: all 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.search-icon {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Page Content */
.page-content {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 0;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-radius: var(--radius-xl);
  margin-bottom: 3rem;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.version-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  margin-left: 0.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.hero-description {
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-description p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Terminal Demo */
.hero-visual {
  display: flex;
  justify-content: center;
}

.terminal-demo {
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 400px;
  overflow: hidden;
}

.terminal-header {
  background-color: var(--bg-accent);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-dots {
  display: flex;
  gap: 0.375rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background-color: #ff5f57; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #28ca42; }

.terminal-title {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 500;
}

.terminal-body {
  padding: 1.5rem;
  background-color: #000;
  color: #0f0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.terminal-prompt {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.prompt-path {
  color: var(--accent-secondary);
}

.prompt-cursor {
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Sections */
section {
  margin-bottom: 3rem;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

/* Quick Start */
.quick-start-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.quick-start-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.2s ease;
}

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

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.code-block {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-sm);
  padding: 2.5rem 1rem 1rem 1rem;
  margin: 1rem 0;
  overflow-x: auto;
}

.code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-primary);
}

.code-block code {
  background: none;
  padding: 0;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.feature-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 1rem;
  transition: color 0.2s ease;
}

.feature-link:hover {
  color: var(--accent-secondary);
}

/* Updates */
.updates-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.update-item {
  display: flex;
  gap: 1rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.update-item:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.update-badge {
  font-size: 1.5rem;
  display: flex;
  align-items: flex-start;
  padding-top: 0.25rem;
}

.update-content h4 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.update-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Getting Started */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step {
  display: flex;
  gap: 1.5rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.step:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
}

.step-number {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.125rem;
  flex-shrink: 0;
}

/* Section Navigation */
.section-nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-primary);
  display: flex;
  justify-content: center;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-button.primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
}

.nav-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.nav-button.secondary:hover {
  background-color: var(--bg-accent);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.nav-arrow {
  transition: transform 0.2s ease;
}

.nav-button:hover .nav-arrow {
  transform: translateX(4px);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .page-content {
    padding: 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .quick-start-grid {
    grid-template-columns: 1fr;
  }

  .search-input {
    width: 200px;
  }

  .step {
    flex-direction: column;
    text-align: center;
  }

  .step-number {
    align-self: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .search-input {
    width: 150px;
  }

  .nav-links {
    flex-direction: column;
  }
}

/* Code Blocks */
.code-block {
  position: relative;
}

.code-block::before {
  content: '';
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 12px;
  height: 12px;
  background-color: var(--accent-error);
  border-radius: 50%;
  box-shadow:
    20px 0 0 var(--accent-tertiary),
    40px 0 0 var(--accent-secondary);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

/* Focus Styles for Accessibility */
.nav-link:focus,
.theme-toggle:focus,
.search-input:focus,
.nav-button:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .sidebar,
  .mobile-menu-btn,
  .theme-toggle,
  .search-container {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }

  .hero {
    background: none;
    border: 1px solid var(--border-primary);
  }
}