@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;800&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  /* Colors */
  --bg-dark: #07070a;
  --bg-card: rgba(15, 15, 20, 0.6);
  --text-main: #f3f4f6;
  --text-muted: #8b949e;
  --accent-primary: #00e5ff;
  --accent-secondary: #b400ff;
  --gradient-accent: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --border-color: rgba(0, 229, 255, 0.15);
  --success: #00fa9a;
  
  /* Typography */
  --font-base: 'Orbitron', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  
  /* Layout */
  --max-width: 1200px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

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

body {
  font-family: var(--font-base);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 50% 10%, rgba(180, 0, 255, 0.25), transparent 50%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1000' height='1000' viewBox='0 0 1000 1000'%3E%3Cg stroke='rgba(0, 229, 255, 0.35)' stroke-width='2' fill='none'%3E%3Ccircle cx='500' cy='500' r='400'/%3E%3Cellipse cx='500' cy='500' rx='200' ry='400'/%3E%3Cellipse cx='500' cy='500' rx='400' ry='200'/%3E%3Cellipse cx='500' cy='500' rx='100' ry='400'/%3E%3Cellipse cx='500' cy='500' rx='400' ry='100'/%3E%3Cellipse cx='500' cy='500' rx='300' ry='400'/%3E%3Cellipse cx='500' cy='500' rx='400' ry='300'/%3E%3C/g%3E%3C/svg%3E"),
    linear-gradient(rgba(0, 229, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 1200px 1200px, 40px 40px, 40px 40px;
  background-position: center, center -300px, 0 0, 0 0;
  background-repeat: no-repeat, no-repeat, repeat, repeat;
  background-attachment: fixed;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent-primary);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Glassmorphism Utilities */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

/* Typography Utilities */
.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-5 { margin-top: 3rem; }

/* Header */
header {
  padding: 24px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
  color: white;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

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

.btn-block {
  width: 100%;
}

/* Hero Section */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

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

/* Features Grid */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-size: 1.1rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border-color: rgba(139, 92, 246, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(139, 92, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-primary);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Pricing */
.pricing-card {
  padding: 40px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pricing-popular {
  border-color: var(--accent-primary);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.15);
}

.popular-badge {
  position: absolute;
  top: 16px;
  right: -32px;
  background: var(--gradient-accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 40px;
  transform: rotate(45deg);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pricing-name {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
}

.pricing-price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.pricing-features li svg {
  width: 20px;
  height: 20px;
  color: var(--success);
  margin-right: 12px;
  flex-shrink: 0;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding: 24px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
}

.faq-answer {
  color: var(--text-muted);
}

/* Reviews */
.review-card {
  padding: 24px;
}

.review-text {
  font-style: italic;
  margin-bottom: 16px;
  color: var(--text-main);
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.review-info h4 {
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.review-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0 20px;
  margin-top: 60px;
  background: rgba(10, 10, 12, 0.5);
}

.footer-nav {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-nav a:hover {
  color: var(--text-main);
}

.copyright {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Page Content (for inner pages) */
.page-header {
  padding: 60px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.page-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.content-block {
  max-width: 800px;
  margin: 0 auto 60px;
}

.content-block h2 {
  font-size: 1.8rem;
  margin: 32px 0 16px;
  color: var(--accent-primary);
}

.content-block h3 {
  font-size: 1.3rem;
  margin: 24px 0 12px;
}

.content-block p {
  margin-bottom: 16px;
  color: var(--text-muted);
}

.content-block ul {
  margin: 0 0 24px 24px;
  color: var(--text-muted);
}

.content-block li {
  margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .footer-nav {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .btn {
    padding: 14px 24px; /* Larger touch target for mobile */
  }
  
  .popular-badge {
    right: -35px;
  }
}