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

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-background: #ffffff;
  --color-background-secondary: #f8fafc;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Header Styles */
.header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.9);
}

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

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo-text {
  color: var(--color-text);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  color: var(--color-text);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  margin: 0;
}

.nav-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

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

/* Button Styles */
.btn-text {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  transition: color 0.2s;
}

.btn-text:hover {
  color: var(--color-primary);
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  padding: 0.625rem 1.25rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  padding: 0.625rem 1.25rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  border: 2px solid var(--color-border);
  cursor: pointer;
  display: inline-block;
}

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

.btn-large {
  padding: 0.875rem 2rem;
  font-size: 1rem;
}

/* Hero Section */
.hero {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(180deg, var(--color-background-secondary) 0%, var(--color-background) 100%);
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-pricing {
  margin-bottom: var(--spacing-xl);
}

.pricing-highlight {
  background-color: var(--color-background);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  display: inline-block;
  box-shadow: var(--shadow-lg);
}

.price-wrapper {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.price-original {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
  font-weight: 500;
}

.price-current {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
}

.price-period {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

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

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

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

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

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  padding: var(--spacing-3xl) 0;
}

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

.feature-card {
  padding: var(--spacing-xl);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  transition: all 0.3s;
}

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

.feature-icon {
  margin-bottom: var(--spacing-md);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.feature-description {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Testimonials Section */
.testimonials {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-background-secondary);
}

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

.testimonial-card {
  background-color: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  color: var(--color-warning);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.testimonial-text {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
}

.author-name {
  font-weight: 600;
  color: var(--color-text);
}

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

/* Pricing Section */
.pricing {
  padding: var(--spacing-3xl) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--color-background);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  transition: all 0.3s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pricing-card-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: white;
  padding: 0.375rem 1rem;
  border-radius: 2rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.pricing-header {
  margin-bottom: var(--spacing-lg);
}

.pricing-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

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

.pricing-price {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text);
}

.price-currency {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

.check-icon {
  flex-shrink: 0;
}

.btn-pricing {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.875rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  border: 2px solid var(--color-border);
  background-color: transparent;
  color: var(--color-text);
}

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

.btn-pricing-featured {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.btn-pricing-featured:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
}

/* CTA Section */
.cta {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.cta-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

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

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

.cta-note {
  opacity: 0.9;
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background-color: var(--color-background-secondary);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-column {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.footer-description {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-muted);
  transition: all 0.2s;
}

.footer-social a:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.footer-title {
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

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

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

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-bottom-links a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* Responsive Design */
@media (max-width: 968px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-column:first-child {
    grid-column: 1 / -1;
  }
}

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

  .nav-links {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

  .price-current {
    font-size: 2.5rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn-large {
    width: 100%;
  }

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

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

  .cta-buttons {
    flex-direction: column;
  }

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

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

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

  .features,
  .testimonials,
  .pricing,
  .cta {
    padding: var(--spacing-xl) 0;
  }
}