:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #ec4899;
  --secondary-dark: #db2777;
  --accent: #f59e0b;
  --background: #0f172a;
  --background-light: #1e293b;
  --background-card: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --gradient-2: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

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

a:hover {
  color: var(--secondary);
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

p {
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-1);
  color: white;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
  color: white;
}

.btn-secondary {
  background: var(--background-light);
  color: var(--text-primary);
  border: 2px solid var(--primary);
}

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

.btn-lg {
  padding: 18px 36px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 15px 0;
  transition: var(--transition);
}

.header.scrolled {
  padding: 10px 0;
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-1);
  transition: var(--transition);
}

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

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 10px;
}

.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 80%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--primary-light);
  margin-bottom: 24px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.hero h1 {
  margin-bottom: 24px;
  background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 50px;
  margin-top: 60px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.features {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-1);
  transform: scaleX(0);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: rgba(99, 102, 241, 0.3);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient-1);
  transform: rotate(10deg) scale(1.1);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-light);
  transition: var(--transition);
}

.feature-card:hover .feature-icon svg {
  stroke: white;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.content-section {
  padding: 80px 0;
}

.content-block {
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 50px;
  margin-bottom: 40px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.content-block h2 {
  margin-bottom: 24px;
}

.content-block ul {
  list-style: none;
  margin: 24px 0;
}

.content-block li {
  padding: 12px 0;
  padding-left: 30px;
  position: relative;
  color: var(--text-secondary);
}

.content-block li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-block li::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin: 40px 0;
}

.content-card {
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: 20px;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 40px;
}

.floating-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  background: var(--gradient-1);
  color: white;
  padding: 16px 28px;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
  border: none;
  font-size: 1rem;
}

.floating-btn:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 15px 40px rgba(99, 102, 241, 0.6);
  color: white;
}

.floating-btn svg {
  width: 24px;
  height: 24px;
}

.footer {
  background: var(--background-light);
  padding: 80px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--text-primary);
  margin-bottom: 20px;
}

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

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  color: var(--text-muted);
  margin: 0;
}

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.social-links svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-primary);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 30px 0;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb span {
  color: var(--text-muted);
}

.page-header {
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
}

.page-header > * {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  margin-bottom: 16px;
}

.page-header p {
  max-width: 700px;
  margin: 0 auto;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(99, 102, 241, 0.3);
}

.card-icon {
  width: 50px;
  height: 50px;
  background: rgba(99, 102, 241, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary-light);
}

.card h3 {
  margin-bottom: 12px;
}

.card p {
  margin-bottom: 20px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-light);
  font-weight: 600;
}

.card-link:hover {
  gap: 12px;
}

.stats-section {
  padding: 80px 0;
  background: var(--background-light);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

/* codex-ui-fixes */
.logo,
.logo:hover,
.logo:focus,
.logo:active {
    text-decoration: none;
}

.menu-toggle,
.nav-toggle,
.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    min-width: 44px;
    min-height: 44px;
    padding: 0;
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.08);
    color: inherit;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.menu-toggle:hover,
.nav-toggle:hover,
.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(148, 163, 184, 0.5);
    transform: translateY(-1px);
}

.menu-toggle:focus-visible,
.nav-toggle:focus-visible,
.mobile-menu-btn:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.menu-toggle i,
.nav-toggle i,
.mobile-menu-btn i,
.menu-toggle svg,
.nav-toggle svg,
.mobile-menu-btn svg {
    display: block;
    margin: 0 auto;
}

.menu-toggle span,
.nav-toggle span,
.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 4px auto;
    border-radius: 999px;
    background: currentColor;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

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

.stat-card {
  text-align: center;
  padding: 30px;
  background: var(--background-card);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-card .stat-icon {
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.stat-card .stat-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-light);
}

.stat-card h3 {
  margin-bottom: 8px;
}

.stat-card p {
  color: var(--text-muted);
  margin: 0;
}

.testimonials {
  padding: 100px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 80px;
  font-family: Georgia, serif;
  color: rgba(99, 102, 241, 0.2);
  line-height: 1;
}

.testimonial-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

.testimonial-info h4 {
  margin-bottom: 4px;
}

.testimonial-info p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9rem;
}

.faq-section {
  padding: 80px 0;
}

.faq-item {
  background: var(--background-card);
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.faq-question {
  padding: 24px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition);
}

.faq-question:hover {
  background: rgba(99, 102, 241, 0.1);
}

.faq-question svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-muted);
  transition: var(--transition);
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 30px;
  max-height: 0;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active .faq-answer {
  padding: 0 30px 24px;
  max-height: 500px;
}

.faq-answer p {
  margin: 0;
}

.toc {
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin: 40px 0;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.toc h3 {
  margin-bottom: 20px;
}

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

.toc-list li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.toc-list li:last-child {
  border-bottom: none;
}

.toc-list a {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.toc-list a:hover {
  color: var(--primary-light);
}

.toc-list a::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.shimmer {
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

.glow {
  box-shadow: 0 0 60px rgba(99, 102, 241, 0.3);
}

.text-gradient {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (max-width: 992px) {
  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 120px 0 60px;
  }

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 30px;
  }

  .content-block {
    padding: 30px 20px;
  }

  .floating-btn {
    bottom: 20px;
    right: 20px;
    padding: 14px 20px;
    font-size: 0.9rem;
  }
}

.highlight-box {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 40px 0;
  text-align: center;
}

.highlight-box h3 {
  margin-bottom: 16px;
}

.note-box {
  background: rgba(16, 185, 129, 0.1);
  border-left: 4px solid var(--success);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}

.note-box p {
  margin: 0;
  color: var(--text-secondary);
}

.warning-box {
  background: rgba(245, 158, 11, 0.1);
  border-left: 4px solid var(--warning);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}

.warning-box p {
  margin: 0;
  color: var(--text-secondary);
}

.info-box {
  background: rgba(99, 102, 241, 0.1);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}

.info-box p {
  margin: 0;
  color: var(--text-secondary);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
}

.tag {
  background: rgba(99, 102, 241, 0.2);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--primary-light);
  transition: var(--transition);
}

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

.steps {
  counter-reset: step;
}

.step {
  display: flex;
  gap: 24px;
  margin-bottom: 30px;
  align-items: flex-start;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
  padding-top: 5px;
}

.step-content h4 {
  margin-bottom: 8px;
}

.step-content p {
  margin: 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table th {
  background: var(--background-light);
  color: var(--text-primary);
  font-weight: 600;
}

.comparison-table td {
  color: var(--text-secondary);
}

.comparison-table tr:hover td {
  background: rgba(99, 102, 241, 0.05);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.98);
  z-index: 999;
  padding: 100px 30px 30px;
  flex-direction: column;
  gap: 20px;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 1.5rem;
  color: var(--text-primary);
  padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 10px;
}

.close-icon {
  width: 24px;
  height: 24px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-bounce {
  animation: bounce 2s infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 2s linear infinite;
}

.related-articles {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.related-articles h3 {
  margin-bottom: 30px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.related-card {
  background: var(--background-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.related-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

.related-card h4 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.related-card p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-muted);
}

.related-card a {
  color: var(--text-primary);
}

.related-card a:hover h4 {
  color: var(--primary-light);
}

.author-section {
  display: flex;
  gap: 30px;
  background: var(--background-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 40px 0;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.author-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.author-info h3 {
  margin-bottom: 8px;
}

.author-info p {
  margin: 0;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin: 40px 0;
}

.quick-link-card {
  background: var(--background-card);
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.quick-link-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.3);
}

.quick-link-card svg {
  width: 40px;
  height: 40px;
  stroke: var(--primary-light);
  margin-bottom: 16px;
}

.quick-link-card h4 {
  margin-bottom: 8px;
}

.quick-link-card p {
  margin: 0 0 20px;
  font-size: 0.9rem;
}

.video-container {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--background-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 30px 0;
}

.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
}

.play-btn {
  width: 80px;
  height: 80px;
  background: var(--gradient-1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.play-btn:hover {
  transform: scale(1.1);
}

.play-btn svg {
  width: 30px;
  height: 30px;
  fill: white;
  margin-left: 5px;
}