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

:root {
  --midnight-navy: #0A1F44;
  --electric-teal: #00D9FF;
  --soft-gray: #F5F7FA;
  --medium-gray: #8B95A5;
  --dark-gray: #3A4556;
  --white: #FFFFFF;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
}

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

.header {
  background-color: var(--white);
  padding: 20px 0;
  border-bottom: 1px solid var(--soft-gray);
  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: 12px;
}

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

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--midnight-navy);
  letter-spacing: -0.5px;
}

.header-phone {
  color: var(--midnight-navy);
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.header-phone:hover {
  color: var(--electric-teal);
}

.hero {
  padding: 60px 0;
  background: linear-gradient(135deg, var(--soft-gray) 0%, var(--white) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 48px;
  line-height: 1.2;
  color: var(--midnight-navy);
  margin-bottom: 24px;
  font-weight: 700;
}

.hero-content p {
  font-size: 18px;
  line-height: 1.6;
  color: var(--dark-gray);
  margin-bottom: 32px;
}

.hero-image {
  width: 100%;
  height: 400px;
  background-color: var(--soft-gray);
  border-radius: 8px;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn {
  display: inline-block;
  padding: 16px 32px;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background-color: var(--electric-teal);
  color: var(--midnight-navy);
}

.btn-primary:hover {
  background-color: #00C4E6;
}

.btn-secondary {
  background-color: var(--midnight-navy);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: #0D2A5A;
}

.features {
  padding: 80px 0;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.feature-card {
  text-align: center;
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  color: var(--midnight-navy);
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-card p {
  font-size: 15px;
  color: var(--medium-gray);
  line-height: 1.5;
}

.about {
  padding: 80px 0;
  background-color: var(--soft-gray);
}

.about h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 24px;
  font-weight: 700;
  text-align: center;
}

.about-intro {
  font-size: 18px;
  color: var(--dark-gray);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.about-image {
  width: 100%;
  height: 400px;
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  margin: 0 auto;
  max-width: 900px;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.products {
  padding: 80px 0;
  background-color: var(--white);
}

.products h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 48px;
  font-weight: 700;
  text-align: center;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.product-card {
  background-color: var(--white);
  border: 1px solid #E5E9F0;
  border-radius: 8px;
  overflow: hidden;
}

.product-image {
  width: 100%;
  height: 280px;
  background-color: var(--soft-gray);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info {
  padding: 24px;
}

.product-info h3 {
  font-size: 22px;
  color: var(--midnight-navy);
  margin-bottom: 8px;
  font-weight: 600;
}

.product-condition {
  font-size: 14px;
  color: var(--medium-gray);
  margin-bottom: 12px;
}

.product-price {
  font-size: 32px;
  color: var(--midnight-navy);
  font-weight: 700;
  margin-bottom: 16px;
}

.product-features {
  list-style: none;
  margin-bottom: 24px;
}

.product-features li {
  font-size: 15px;
  color: var(--dark-gray);
  padding: 6px 0;
  border-bottom: 1px solid var(--soft-gray);
}

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

.product-card .btn {
  width: 100%;
}

.services {
  padding: 80px 0;
  background-color: var(--soft-gray);
}

.services h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 48px;
  font-weight: 700;
  text-align: center;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.service-card {
  text-align: center;
  background-color: var(--white);
  padding: 40px 30px;
  border-radius: 8px;
}

.service-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 22px;
  color: var(--midnight-navy);
  margin-bottom: 12px;
  font-weight: 600;
}

.service-card p {
  font-size: 15px;
  color: var(--medium-gray);
  line-height: 1.5;
}

.warranty-info {
  padding: 80px 0;
  background-color: var(--midnight-navy);
  color: var(--white);
}

.warranty-content {
  display: flex;
  align-items: center;
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.warranty-icon {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
}

.warranty-info h2 {
  font-size: 36px;
  margin-bottom: 16px;
  font-weight: 700;
}

.warranty-info p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--soft-gray);
}

.delivery-info {
  padding: 80px 0;
  background-color: var(--white);
}

.delivery-info h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 24px;
  font-weight: 700;
  text-align: center;
}

.delivery-intro {
  font-size: 18px;
  color: var(--dark-gray);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

.delivery-image {
  width: 100%;
  height: 400px;
  background-color: var(--soft-gray);
  border-radius: 8px;
  overflow: hidden;
  margin: 0 auto;
  max-width: 900px;
}

.delivery-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.how-it-works {
  padding: 80px 0;
  background-color: var(--soft-gray);
}

.how-it-works h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 48px;
  font-weight: 700;
  text-align: center;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.step-card {
  text-align: center;
  background-color: var(--white);
  padding: 40px 30px;
  border-radius: 8px;
}

.step-number {
  width: 56px;
  height: 56px;
  background-color: var(--electric-teal);
  color: var(--midnight-navy);
  font-size: 28px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-card h3 {
  font-size: 20px;
  color: var(--midnight-navy);
  margin-bottom: 12px;
  font-weight: 600;
}

.step-card p {
  font-size: 15px;
  color: var(--medium-gray);
  line-height: 1.5;
}

.contact {
  padding: 80px 0;
  background-color: var(--white);
}

.contact h2 {
  font-size: 40px;
  color: var(--midnight-navy);
  margin-bottom: 48px;
  font-weight: 700;
  text-align: center;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.contact-card {
  text-align: center;
  padding: 40px 30px;
  background-color: var(--soft-gray);
  border-radius: 8px;
}

.contact-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.contact-card h3 {
  font-size: 20px;
  color: var(--midnight-navy);
  margin-bottom: 12px;
  font-weight: 600;
}

.contact-card a {
  color: var(--electric-teal);
  text-decoration: none;
  font-size: 16px;
}

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

.contact-card p {
  font-size: 15px;
  color: var(--dark-gray);
  line-height: 1.6;
}

.footer {
  background-color: var(--midnight-navy);
  color: var(--white);
  padding: 60px 0 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand p {
  margin-top: 16px;
  color: var(--soft-gray);
  font-size: 15px;
}

.footer-brand .logo-wrapper {
  margin-bottom: 16px;
}

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

.footer-contact p {
  margin-bottom: 8px;
  color: var(--soft-gray);
  font-size: 15px;
}

.footer-contact strong {
  color: var(--white);
  display: block;
  margin-bottom: 12px;
  font-size: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  text-align: center;
}

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

@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero {
    padding: 50px 0;
  }

  .hero-image {
    height: 350px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 40px 0;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 16px;
  }

  .hero-image {
    height: 300px;
  }

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

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

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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