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

:root {
  /* Colors */
  --primary: #667eea;
  --primary-dark: #5a6fd8;
  --secondary: #764ba2;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  --light: #f8f9fa;
  --dark: #343a40;
  --white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* 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: 0.25rem;
  --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);

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--white);
  overflow-x: hidden;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}
/* list styles */
ul,
ol {
  list-style: none;
  margin-left: var(--spacing-md);
}
li {
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-4xl);
}
h2 {
  font-size: var(--font-size-3xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-md);
  color: #6b7280;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
}

.nav-brand i {
  font-size: var(--font-size-2xl);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.purchase-btn {
  background: var(--gradient-primary);
  color: var(--white) !important;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.purchase-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Hero Section */
.hero {
  padding: 120px 0 var(--spacing-3xl);
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="%23667eea" stop-opacity="0.1"/><stop offset="100%" stop-color="%23667eea" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="300" fill="url(%23a)"/><circle cx="800" cy="800" r="400" fill="url(%23a)"/></svg>');
  opacity: 0.5;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: #6b7280;
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: #6b7280;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

/* Code Window */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.code-window {
  background: #1e1e1e;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: rotateY(-5deg) rotateX(5deg);
  transition: transform var(--transition-slow);
}

.code-window:hover {
  transform: rotateY(0deg) rotateX(0deg);
}

.window-header {
  background: #2d2d2d;
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.window-controls {
  display: flex;
  gap: var(--spacing-sm);
}

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

.control.red {
  background: #ff5f56;
}
.control.yellow {
  background: #ffbd2e;
}
.control.green {
  background: #27ca3f;
}

.window-title {
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.window-content {
  padding: var(--spacing-lg);
  background: #1e1e1e;
  overflow-x: auto;
}

.window-content pre {
  margin: 0;
  color: #d4d4d4;
  font-family: 'Fira Code', monospace;
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* Sections */
section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: var(--font-size-xl);
  color: #6b7280;
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid #e5e7eb;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.feature-icon i {
  font-size: var(--font-size-2xl);
  color: var(--white);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

.feature-card p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: var(--spacing-sm) 0;
  color: #6b7280;
  position: relative;
  padding-left: var(--spacing-lg);
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

/* Tech Stack Section */
.tech-stack {
  background: #f8fafc;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.tech-category {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.tech-category h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--dark);
}

.tech-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.tech-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: #f8fafc;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}

.tech-item:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.tech-item i {
  font-size: var(--font-size-xl);
  color: var(--primary);
  transition: color var(--transition-normal);
}

.tech-item:hover i {
  color: var(--white);
}

.tech-item span {
  font-weight: 500;
}

/* Demo Section */
.demo {
  background: var(--white);
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.demo-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.demo-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.demo-image {
  position: relative;
  overflow: hidden;
}

.demo-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.demo-card:hover .demo-image img {
  transform: scale(1.05);
}

.demo-content {
  padding: var(--spacing-xl);
}

.demo-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

.demo-content p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
}

.demo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal);
}

.demo-link:hover {
  gap: var(--spacing-md);
}

/* Documentation Section */
.documentation {
  background: #f8fafc;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.doc-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.doc-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.doc-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.doc-icon i {
  font-size: var(--font-size-2xl);
  color: var(--white);
}

.doc-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

.doc-card p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
}

.doc-links {
  list-style: none;
}

.doc-links li {
  margin-bottom: var(--spacing-sm);
}

.doc-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.doc-links a:hover {
  color: var(--primary-dark);
}

/* Setup Section */
.setup {
  background: var(--white);
}

.setup-steps {
  max-width: 800px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
  align-items: flex-start;
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.step-content p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
}

.code-block {
  background: #1e1e1e;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  overflow-x: auto;
}

.code-block pre {
  margin: 0;
  color: #d4d4d4;
  font-family: 'Fira Code', monospace;
  font-size: var(--font-size-sm);
}

.code-block code {
  color: #d4d4d4;
}

/* Support Section */
.support {
  background: var(--white);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.support-card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-normal);
}

.support-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.support-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
}

.support-icon i {
  font-size: var(--font-size-2xl);
  color: var(--white);
}

.support-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--dark);
}

.support-card p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
}

.support-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.support-link:hover {
  color: var(--primary-dark);
}

/* Purchase Section */
.purchase {
  background: var(--gradient-primary);
  color: var(--white);
  text-align: center;
}

.purchase-content h2 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
}

.purchase-content p {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.9);
}

.purchase-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.purchase-feature {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  color: var(--white);
}

.purchase-feature i {
  color: var(--success);
  font-size: var(--font-size-lg);
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.footer-brand i {
  font-size: var(--font-size-2xl);
  color: var(--primary);
}

.footer-section p {
  color: #9ca3af;
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
  color: #9ca3af;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
  color: var(--white);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.social-links a img {
  width: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
  text-align: center;
  color: #9ca3af;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 1200px) {
  .hero-container {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .hero-container {
    gap: var(--spacing-xl);
    text-align: center;
  }

  .hero-visual {
    max-width: 500px;
  }

  .hero-title,
  .purchase-content h2 {
    font-size: var(--font-size-3xl);
  }

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

  .hero-actions {
    justify-content: center;
  }

  .features-grid,
  .tech-grid,
  .demo-grid,
  .docs-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

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

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .hero-visual,
  .code-block {
    max-width: 400px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .nav-container {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    height: auto;
  }

  .hero {
    padding: 150px 0 var(--spacing-xl);
  }

  .hero-visual,
  .code-block {
    max-width: 300px;
  }

  .hero-title,
  .purchase-content h2 {
    font-size: var(--font-size-2xl);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }
  .purchase-content p {
    font-size: var(--font-size-lg);
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .hero-actions {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .tech-items {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out;
}

.animate-fadeInLeft {
  animation: fadeInLeft 0.6s ease-out;
}

.animate-fadeInRight {
  animation: fadeInRight 0.6s ease-out;
}

/* Scroll animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.demo-link:focus,
.support-link:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Documentation Layout Styles */
.docs-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
  margin-top: 70px;
}

.docs-sidebar,
.sidebar {
  background: #f8fafc;
  border-right: 1px solid #e2e8f0;
  padding: 2rem 0;
  position: fixed;
  top: 70px;
  left: 0;
  width: 250px;
  height: calc(100vh - 70px);
  overflow-y: auto;
}

.sidebar-content {
  padding: 0;
}

.sidebar-content h3 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #64748b;
  padding: 0.75rem 1.5rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.sidebar-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-content ul li {
  margin: 0;
}

.sidebar-content ul li a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: #64748b;
  text-decoration: none;
  transition: all 0.2s;
  border-left: 3px solid transparent;
  font-size: 0.875rem;
}

.sidebar-content ul li a:hover,
.sidebar-content ul li a.active {
  color: #667eea;
  background: rgba(102, 126, 234, 0.1);
  border-left-color: #667eea;
}

.docs-content,
.main-content {
  margin-left: 250px;
  padding: 2rem;
  min-height: calc(100vh - 70px);
  width: calc(100vw - 250px);
}

.content-container {
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumb {
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: #64748b;
}

.breadcrumb a {
  color: #667eea;
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb span {
  margin: 0 0.5rem;
  color: #cbd5e1;
}

.doc-section {
  margin-bottom: 3rem;
}

.doc-section h2 {
  font-size: 2rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

.doc-section .lead {
  font-size: 1.125rem;
  color: #64748b;
  margin-bottom: 2rem;
}

/* Responsive adjustments for docs layout */
@media (max-width: 768px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-sidebar,
  .sidebar {
    display: none;
  }

  .docs-content,
  .main-content {
    margin-left: 0;
    padding: 1rem;
    width: 100%;
  }
}

/* FAQ Accordion Styles */
.faq-item {
  background: var(--white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  cursor: pointer;
  background: var(--white);
  transition: background-color var(--transition-fast);
  user-select: none;
}

.faq-question:hover {
  background: #f8f9fa;
}

.faq-question h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--dark);
  flex: 1;
  padding-right: var(--spacing-md);
}

.faq-question i {
  color: var(--primary);
  font-size: var(--font-size-lg);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item.active .faq-question {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-bottom: 1px solid #e5e7eb;
}

.faq-item.active .faq-question h3 {
  color: var(--primary);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  color: var(--primary-dark);
}

.faq-answer {
  display: none;
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  background: var(--white);
  animation: slideDown var(--transition-normal) ease-out;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-answer p {
  margin-bottom: var(--spacing-md);
  color: #4b5563;
  line-height: 1.7;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer ul,
.faq-answer ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.faq-answer ul {
  list-style-type: disc;
}

.faq-answer ol {
  list-style-type: decimal;
}

.faq-answer li {
  margin-bottom: var(--spacing-sm);
  color: #4b5563;
  line-height: 1.7;
}

.faq-answer li strong {
  color: var(--dark);
  font-weight: 600;
}

.faq-answer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.faq-answer a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.faq-answer code {
  background: #f3f4f6;
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  color: var(--danger);
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Help Options Section */
.help-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.help-option {
  background: var(--white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.help-option:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.help-option i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.help-option h4 {
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.help-option p {
  color: #6b7280;
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

/* Print styles */
@media print {
  .navbar,
  .hero-actions,
  .purchase,
  .footer {
    display: none;
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .container {
    max-width: none;
    padding: 0;
  }

  .faq-item {
    break-inside: avoid;
  }

  .faq-answer {
    display: block !important;
  }
}

/* Credits Page Styles */
.credits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.credit-card {
  background: var(--white);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all 0.3s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.credit-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.credit-card h3 {
  color: var(--primary);
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.credit-card .version {
  color: var(--dark);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  padding: 0.25rem 0.5rem;
  background: #f3f4f6;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.credit-card .description {
  color: #6b7280;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.credit-card .license,
.credit-card .copyright {
  color: #4b5563;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.credit-card .license strong,
.credit-card .copyright strong {
  color: var(--dark);
}

.credit-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-top: var(--spacing-md);
  transition: color 0.2s ease;
}

.credit-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.credit-link i {
  font-size: 0.75rem;
}

@media (max-width: 768px) {
  .credits-grid {
    grid-template-columns: 1fr;
  }
}