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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #ffffff;
}

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 16px 0;
}

.header-content {
  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: #ffffff;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: #e2e8f0;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-link:hover {
  color: #3b82f6;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 24px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 20px;
  color: #cbd5e1;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  padding: 18px 40px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: transform 0.3s, box-shadow 0.3s;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

.cta-button-white {
  background: #ffffff;
  color: #1e40af;
}

.cta-button-white:hover {
  box-shadow: 0 15px 40px rgba(255, 255, 255, 0.3);
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #e2e8f0;
  font-weight: 500;
}

.feature-item svg {
  color: #3b82f6;
}

/* Advantages Section */
.advantages {
  padding: 100px 0;
  background: #f8fafc;
}

.section-title {
  font-size: 42px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  color: #0f172a;
}

.section-subtitle {
  text-align: center;
  font-size: 18px;
  color: #64748b;
  margin-top: -40px;
  margin-bottom: 60px;
}

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

.advantage-card {
  background: #ffffff;
  padding: 32px;
  border-radius: 16px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.advantage-icon {
  margin-bottom: 20px;
}

.advantage-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #0f172a;
}

.advantage-text {
  color: #64748b;
  line-height: 1.7;
}

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

.instructions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.instruction-step {
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  margin: 0 auto 24px;
}

.step-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #0f172a;
}

.step-text {
  color: #64748b;
  line-height: 1.7;
}

/* Promo CTA Section */
.promo-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
  position: relative;
  overflow: hidden;
}

.promo-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.promo-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.promo-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.promo-title {
  font-size: 42px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.promo-text {
  font-size: 18px;
  color: #e0e7ff;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.promo-timer {
  margin-bottom: 40px;
}

.timer-label {
  color: #e0e7ff;
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 500;
}

.timer-display {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.timer-block {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 20px 24px;
  border-radius: 12px;
  min-width: 100px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.timer-value {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: #ffffff;
}

.timer-unit {
  display: block;
  font-size: 14px;
  color: #e0e7ff;
  margin-top: 4px;
}

.timer-separator {
  font-size: 36px;
  font-weight: 700;
  color: #ffffff;
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
  background: #f8fafc;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card-popular {
  border: 2px solid #3b82f6;
  transform: scale(1.05);
}

.pricing-card-popular:hover {
  transform: scale(1.05) translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
  padding: 6px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
}

.pricing-header {
  text-align: center;
  margin-bottom: 32px;
}

.pricing-plan {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #0f172a;
}

.pricing-price {
  margin-bottom: 8px;
}

.price-amount {
  font-size: 56px;
  font-weight: 800;
  color: #0f172a;
}

.price-currency {
  font-size: 28px;
  color: #64748b;
}

.pricing-period {
  color: #64748b;
  font-size: 16px;
}

.pricing-total {
  color: #3b82f6;
  font-weight: 600;
  margin-top: 8px;
  font-size: 18px;
}

.pricing-discount {
  display: inline-block;
  background: #dcfce7;
  color: #15803d;
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  margin-top: 8px;
}

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

.pricing-features .feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  color: #475569;
}

.pricing-button {
  display: block;
  width: 100%;
  padding: 16px;
  background: #f1f5f9;
  color: #1e293b;
  border: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: 16px;
  text-align: center;
  text-decoration: none;
  transition: background 0.3s;
  cursor: pointer;
}

.pricing-button:hover {
  background: #e2e8f0;
}

.pricing-button-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  color: #ffffff;
}

.pricing-button-primary:hover {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
}

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

.seo-content-wrapper {
  max-width: 900px;
  margin: 0 auto;
}

.seo-text h3 {
  font-size: 28px;
  font-weight: 700;
  margin-top: 40px;
  margin-bottom: 16px;
  color: #0f172a;
}

.seo-text h3:first-child {
  margin-top: 0;
}

.seo-text p {
  color: #475569;
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 17px;
}

.seo-text strong {
  color: #1e293b;
  font-weight: 600;
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background: #f8fafc;
}

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

.faq-item {
  background: #ffffff;
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.faq-question {
  padding: 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s;
}

.faq-question:hover {
  background: #f8fafc;
}

.faq-question h3 {
  font-size: 18px;
  font-weight: 600;
  color: #0f172a;
  margin: 0;
}

.faq-icon {
  color: #64748b;
  transition: transform 0.3s;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 24px 24px;
  color: #64748b;
  line-height: 1.7;
}

/* Footer */
.footer {
  background: #0f172a;
  padding: 60px 0 40px;
}

.footer-content {
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-text {
  color: #94a3b8;
  max-width: 600px;
  margin: 0 auto 24px;
  line-height: 1.7;
}

.footer-copyright {
  color: #64748b;
  font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

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

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

  .timer-display {
    flex-wrap: wrap;
  }

  .timer-block {
    min-width: 80px;
    padding: 16px 20px;
  }

  .timer-value {
    font-size: 28px;
  }

  .pricing-card-popular {
    transform: scale(1);
  }

  .hero-features {
    gap: 24px;
  }

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

@media (max-width: 480px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 28px;
  }

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

  .cta-button {
    padding: 14px 28px;
    font-size: 16px;
  }

  .section-title {
    font-size: 28px;
  }

  .timer-block {
    min-width: 70px;
    padding: 12px 16px;
  }

  .timer-value {
    font-size: 24px;
  }

  .timer-separator {
    font-size: 24px;
  }
}