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

:root {
  --charcoal: #2D3748;
  --electric-blue: #0EA5E9;
  --soft-mint: #9DF3C4;
  --white: #FFFFFF;
  --light-gray: #F7FAFC;
  --medium-gray: #E2E8F0;
  --text-gray: #4A5568;
  --spacing: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.5;
  color: var(--charcoal);
  background-color: var(--white);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 calc(var(--spacing) * 3);
}

.header {
  background-color: var(--white);
  border-bottom: 1px solid var(--medium-gray);
  padding: calc(var(--spacing) * 2) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 2);
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.brand-name {
  font-size: 20px;
  font-weight: 600;
  color: var(--charcoal);
}

.header-phone {
  font-size: 18px;
  font-weight: 600;
  color: var(--electric-blue);
  text-decoration: none;
}

.header-phone:hover {
  text-decoration: underline;
}

.hero {
  background-color: var(--light-gray);
  padding: calc(var(--spacing) * 12) 0 calc(var(--spacing) * 10);
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: calc(var(--spacing) * 3);
  color: var(--charcoal);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-gray);
  max-width: 800px;
  margin: 0 auto calc(var(--spacing) * 5);
  line-height: 1.5;
}

.btn {
  display: inline-block;
  padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: calc(var(--spacing) * 1);
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--electric-blue);
  color: var(--white);
  border-color: var(--electric-blue);
}

.btn-primary:hover {
  background-color: #0284C7;
  border-color: #0284C7;
}

.btn-outline {
  background-color: transparent;
  color: var(--electric-blue);
  border-color: var(--electric-blue);
}

.btn-outline:hover {
  background-color: var(--electric-blue);
  color: var(--white);
}

.btn-lg {
  padding: calc(var(--spacing) * 3) calc(var(--spacing) * 6);
  font-size: 18px;
}

.btn-sm {
  padding: calc(var(--spacing) * 1.5) calc(var(--spacing) * 3);
  font-size: 14px;
}

.features {
  padding: calc(var(--spacing) * 10) 0;
}

.features h2,
.services h2,
.benefits h2,
.pricing h2,
.products h2,
.cta h2,
.contacts h2,
.image-section h2 {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: calc(var(--spacing) * 6);
  color: var(--charcoal);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: calc(var(--spacing) * 4);
}

.feature-card {
  text-align: center;
  padding: calc(var(--spacing) * 4);
  background-color: var(--white);
  border: 1px solid var(--medium-gray);
  border-radius: calc(var(--spacing) * 1);
}

.feature-icon,
.service-icon,
.contact-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto calc(var(--spacing) * 3);
}

.feature-card h3,
.service-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 2);
  color: var(--charcoal);
}

.feature-card p,
.service-item p {
  color: var(--text-gray);
  line-height: 1.5;
}

.services {
  background-color: var(--light-gray);
  padding: calc(var(--spacing) * 10) 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: calc(var(--spacing) * 4);
}

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

.service-item {
  text-align: center;
  padding: calc(var(--spacing) * 4);
}

.benefits {
  padding: calc(var(--spacing) * 10) 0;
}

.benefits-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: calc(var(--spacing) * 5) calc(var(--spacing) * 6);
  max-width: 900px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .benefits-list {
    grid-template-columns: 1fr;
  }
}

.benefit-item {
  display: flex;
  gap: calc(var(--spacing) * 2);
  align-items: flex-start;
}

.check-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.benefit-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 1);
  color: var(--charcoal);
}

.benefit-item p {
  color: var(--text-gray);
  line-height: 1.5;
}

.image-section {
  background-color: var(--light-gray);
  padding: calc(var(--spacing) * 10) 0;
}

.section-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: calc(var(--spacing) * 2);
}

@media (max-width: 768px) {
  .section-image {
    height: 300px;
  }
}

.pricing {
  padding: calc(var(--spacing) * 10) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing) * 4);
  max-width: 1000px;
  margin: 0 auto;
}

.pricing-card {
  background-color: var(--white);
  border: 2px solid var(--medium-gray);
  border-radius: calc(var(--spacing) * 1);
  padding: calc(var(--spacing) * 5);
  text-align: center;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--electric-blue);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.15);
}

.badge {
  position: absolute;
  top: calc(var(--spacing) * -2);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--soft-mint);
  color: var(--charcoal);
  padding: calc(var(--spacing) * 1) calc(var(--spacing) * 2);
  border-radius: calc(var(--spacing) * 3);
  font-size: 14px;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 3);
  color: var(--charcoal);
}

.price {
  font-size: 48px;
  font-weight: 700;
  color: var(--electric-blue);
  margin-bottom: calc(var(--spacing) * 4);
}

.price span {
  font-size: 18px;
  font-weight: 400;
  color: var(--text-gray);
}

.pricing-features {
  list-style: none;
  margin-bottom: calc(var(--spacing) * 5);
  text-align: left;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 1);
  padding: calc(var(--spacing) * 1) 0;
  color: var(--text-gray);
}

.check-icon-sm {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.products {
  background-color: var(--light-gray);
  padding: calc(var(--spacing) * 10) 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing) * 4);
}

.product-card {
  background-color: var(--white);
  border: 1px solid var(--medium-gray);
  border-radius: calc(var(--spacing) * 1);
  padding: calc(var(--spacing) * 4);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: calc(var(--spacing) * 1.5);
  margin-bottom: calc(var(--spacing) * 3);
}

.product-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 2);
  color: var(--charcoal);
}

.product-card p {
  color: var(--text-gray);
  line-height: 1.5;
  margin-bottom: calc(var(--spacing) * 3);
}

.product-price {
  font-size: 24px;
  font-weight: 700;
  color: var(--electric-blue);
  margin-bottom: calc(var(--spacing) * 3);
}

.cta {
  padding: calc(var(--spacing) * 10) 0;
  text-align: center;
}

.cta p {
  font-size: 20px;
  color: var(--text-gray);
  margin-bottom: calc(var(--spacing) * 5);
}

.contacts {
  background-color: var(--light-gray);
  padding: calc(var(--spacing) * 10) 0;
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: calc(var(--spacing) * 5);
  max-width: 900px;
  margin: 0 auto;
}

.contact-item {
  display: flex;
  gap: calc(var(--spacing) * 3);
  align-items: flex-start;
}

.contact-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: calc(var(--spacing) * 1);
  color: var(--charcoal);
}

.contact-item a {
  color: var(--electric-blue);
  text-decoration: none;
}

.contact-item a:hover {
  text-decoration: underline;
}

.contact-item p {
  color: var(--text-gray);
  line-height: 1.5;
}

.footer {
  background-color: var(--charcoal);
  color: var(--white);
  padding: calc(var(--spacing) * 8) 0 calc(var(--spacing) * 4);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: calc(var(--spacing) * 4);
}

.footer-brand .brand-name {
  color: var(--white);
}

.footer-brand p {
  color: var(--medium-gray);
  margin-top: calc(var(--spacing) * 2);
}

.footer-links {
  display: flex;
  gap: calc(var(--spacing) * 3);
  flex-wrap: wrap;
  align-items: center;
}

.footer-links a {
  color: var(--medium-gray);
  text-decoration: none;
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-info p {
  color: var(--medium-gray);
  font-size: 14px;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
  }

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

  .features h2,
  .services h2,
  .benefits h2,
  .pricing h2,
  .products h2,
  .cta h2,
  .contacts h2,
  .image-section h2 {
    font-size: 28px;
  }

  .features-grid,
  .pricing-grid,
  .products-grid,
  .contacts-grid {
    grid-template-columns: 1fr;
  }

  .header-content {
    flex-direction: column;
    gap: calc(var(--spacing) * 2);
    text-align: center;
  }

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

  .footer-links {
    justify-content: center;
  }

  .price {
    font-size: 36px;
  }
}