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

html,
body {
  height: 100%;
  background: #fff;
  color: #000;
  font-family: "Helvetica Neue", Arial, sans-serif;
  scroll-behavior: smooth;
  overflow: hidden;
}

main {
  height: 100vh;
  width: 100%;
  position: relative;
}

section {
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
  position: absolute;
  top: 0;
  left: 0;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
  position: absolute;
  top: 0;
  left: 0;
}

h1 {
  font-size: 2.4rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

h2 {
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

p {
  max-width: 600px;
  line-height: 1.6;
  font-size: 1rem;
}

.brands {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
  width: 100%;
  max-width: 1200px;
}

.brand {
  border: 1px solid #000;
  padding: 20px;
  width: 280px;
  flex: 0 0 280px;
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: #fff;
  border-top: 1px solid #000;
  text-align: center;
  padding: 15px;
  font-size: 0.9rem;
}

body.loaded section.visible {
  transition-delay: 0.2s;
}

@media (max-width: 768px) {
  section {
    padding: 20px 15px;
    padding-bottom: 80px;
  }

  h1 {
    font-size: 1.8rem;
    margin-bottom: 15px;
  }

  h2 {
    font-size: 1.1rem;
    margin-bottom: 15px;
  }

  p {
    font-size: 0.95rem;
    line-height: 1.5;
    max-width: 100%;
  }

  .brands {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 15px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    padding: 0 10px;
  }

  .brand {
    padding: 15px;
    width: 100%;
    flex: 1 1 100%;
  }

  .brand h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
  }

  .brand p {
    font-size: 0.9rem;
  }

  footer {
    padding: 12px 10px;
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  section {
    padding: 15px 10px;
    padding-bottom: 70px;
  }

  h1 {
    font-size: 1.5rem;
    letter-spacing: 0.5px;
  }

  h2 {
    font-size: 1rem;
    letter-spacing: 0.5px;
  }

  p {
    font-size: 0.9rem;
  }

  .brands {
    grid-template-columns: 1fr;
    padding: 0 5px;
  }

  .brand {
    padding: 12px;
    width: 100%;
    flex: 1 1 100%;
  }

  .brand h3 {
    font-size: 1rem;
  }

  .brand p {
    font-size: 0.85rem;
  }

  footer {
    padding: 10px;
    font-size: 0.75rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .brand {
    width: 240px;
    flex: 0 0 240px;
  }
}

@media (min-width: 1025px) {
  .brand {
    width: 280px;
    flex: 0 0 280px;
  }
}