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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background-color: #ffffff;
}

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

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e5e5;
  z-index: 1000;
  padding: 20px 0;
}

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

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

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-menu a {
  text-decoration: none;
  color: #1a1a1a;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: #0099ff;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #00d4aa 0%, #0099ff 100%);
  padding: 100px 0;
  color: white;
}

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

.hero-title {
  font-size: 48px;
  line-height: 1.2;
  margin-bottom: 24px;
  font-weight: 800;
}

.highlight {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.5);
  text-underline-offset: 8px;
}

.hero-subtitle {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.95;
  line-height: 1.6;
}

.hero-cta {
  margin-bottom: 48px;
}

.btn {
  display: inline-block;
  padding: 16px 40px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: all 0.3s;
  border: 2px solid transparent;
}

.btn-primary {
  background: white;
  color: #0099ff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-outline {
  background: transparent;
  border: 2px solid currentColor;
  color: inherit;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-large {
  padding: 20px 48px;
  font-size: 20px;
}

.cta-note {
  margin-top: 16px;
  font-size: 14px;
  opacity: 0.9;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
}

/* Benefits Section */
.benefits {
  padding: 100px 0;
  background: #f8f9fa;
}

.section-title {
  font-size: 40px;
  text-align: center;
  margin-bottom: 16px;
  font-weight: 700;
}

.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: #666;
  margin-bottom: 60px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

.benefit-card {
  background: white;
  padding: 40px 32px;
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.benefit-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
  color: #1a1a1a;
}

.benefit-card p {
  color: #666;
  line-height: 1.6;
}

/* Instructions Section */
.instructions {
  padding: 100px 0;
  background: white;
}

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

.step {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
}

.step-number {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #00d4aa 0%, #0099ff 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
  font-weight: 700;
}

.step-content h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: #1a1a1a;
}

.step-content p {
  color: #666;
  line-height: 1.6;
  font-size: 16px;
}

/* Secondary CTA */
.cta-secondary {
  padding: 100px 0;
  background: linear-gradient(135deg, #0099ff 0%, #00d4aa 100%);
}

.cta-box {
  text-align: center;
  color: white;
}

.cta-box h2 {
  font-size: 40px;
  margin-bottom: 24px;
  font-weight: 700;
}

.cta-description {
  font-size: 18px;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
  line-height: 1.6;
}

.cta-guarantee {
  margin-top: 24px;
  font-size: 16px;
  opacity: 0.9;
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
  background: white;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

.pricing-card {
  background: white;
  border: 2px solid #e5e5e5;
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
  border-color: #0099ff;
  border-width: 3px;
  transform: scale(1.05);
}

.badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #00d4aa 0%, #0099ff 100%);
  color: white;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.plan-name {
  font-size: 24px;
  margin-bottom: 20px;
  color: #1a1a1a;
}

.plan-price {
  margin-bottom: 12px;
}

.price {
  font-size: 48px;
  font-weight: 700;
  color: #1a1a1a;
}

.period {
  font-size: 18px;
  color: #666;
}

.plan-savings {
  color: #00d4aa;
  font-weight: 600;
  margin-bottom: 24px;
  font-size: 16px;
}

.plan-features {
  list-style: none;
  margin: 32px 0;
  text-align: left;
}

.plan-features li {
  padding: 12px 0;
  border-bottom: 1px solid #f0f0f0;
  color: #666;
}

.plan-features li:last-child {
  border-bottom: none;
}

/* SEO Content Section */
.seo-content {
  padding: 100px 0;
  background: #f8f9fa;
}

.content-article {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  padding: 60px;
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.content-article h2 {
  font-size: 36px;
  margin-bottom: 24px;
  color: #1a1a1a;
  font-weight: 700;
}

.content-article h3 {
  font-size: 28px;
  margin-top: 48px;
  margin-bottom: 20px;
  color: #1a1a1a;
  font-weight: 600;
}

.content-article p {
  margin-bottom: 20px;
  color: #444;
  line-height: 1.8;
  font-size: 16px;
}

.content-list {
  margin: 24px 0;
  padding-left: 24px;
}

.content-list li {
  margin-bottom: 12px;
  color: #444;
  line-height: 1.8;
}

.content-list strong {
  color: #1a1a1a;
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background: white;
}

.faq-list {
  max-width: 800px;
  margin: 60px auto 0;
}

.faq-item {
  background: #f8f9fa;
  padding: 32px;
  border-radius: 12px;
  margin-bottom: 24px;
}

.faq-question {
  font-size: 22px;
  margin-bottom: 16px;
  color: #1a1a1a;
  font-weight: 600;
}

.faq-answer p {
  color: #444;
  line-height: 1.8;
  margin-bottom: 16px;
}

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

/* Footer */
.footer {
  background: #1a1a1a;
  color: white;
  padding: 60px 0;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-text {
  color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    gap: 16px;
    font-size: 14px;
  }

  .hero {
    padding: 60px 0;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-features {
    gap: 24px;
  }

  .feature-item {
    font-size: 14px;
  }

  .section-title {
    font-size: 32px;
  }

  .benefits,
  .instructions,
  .pricing,
  .seo-content,
  .faq {
    padding: 60px 0;
  }

  .cta-secondary {
    padding: 60px 0;
  }

  .cta-box h2 {
    font-size: 32px;
  }

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

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

  .pricing-card.featured {
    transform: none;
  }

  .content-article {
    padding: 32px 24px;
  }

  .content-article h2 {
    font-size: 28px;
  }

  .content-article h3 {
    font-size: 22px;
  }

  .step {
    flex-direction: column;
    gap: 16px;
  }

  .logo-text {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .btn {
    padding: 14px 32px;
    font-size: 16px;
  }

  .btn-large {
    padding: 16px 36px;
    font-size: 18px;
  }

  .nav-menu {
    display: none;
  }
}