body {
  margin: 0;
  font-family: sans-serif;
  background: black;
  color: white;
}
header {
  text-align: center;
  padding: 2rem;
}
.logo {
  font-weight: bold;
  font-size: 2rem;
}
.logo.big {
  font-size: 3rem;
}
main {
  max-width: 1200px;
  margin: 0 auto;
}
input, select, textarea {
  display: block;
  margin: 1rem 0;
  padding: 1rem;
  width: 100%;
  box-sizing: border-box;
  font-size: 1rem;
}
button, .buy-button {
  background: white;
  color: black;
  padding: 1rem 2rem;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  display: inline-block;
  margin-top: 1rem;
  text-decoration: none;
}
fieldset {
  margin-top: 2rem;
  background: #222;
  padding: 1rem;
  border-radius: 8px;
}
.product-container {
  display: flex;
  flex-direction: row;
  gap: 3rem;
  padding: 4rem 2rem;
}
.product-left img {
  max-width: 500px;
  width: 100%;
  display: block;
}
.product-right {
  flex: 1;
}
.details-table {
  margin-top: 2rem;
}
.details-table table {
  width: 100%;
  border-collapse: collapse;
}
.details-table td {
  padding: 0.5rem 0;
  border-bottom: 1px solid #444;
}

/* Gallery styles */
.gallery {
  display: flex;
  overflow-x: auto;
  scroll-behavior: smooth;
  gap: 2rem;
  padding: 4rem 2rem 2rem;
}
.image-wrapper {
  flex: 0 0 auto;
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #000;
}
.image-wrapper img {
  height: 100%;
  width: auto;
  display: block;
  cursor: pointer;
}
.scroll-buttons {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
}
.scroll-buttons button {
  background: white;
  color: black;
  border: none;
  font-size: 2rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
}
nav {
  text-align: center;
  margin-top: 1rem;
}
nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: white;
  font-weight: bold;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .product-container {
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
  }
  .product-left img {
    max-width: 100%;
  }
  .product-right {
    width: 100%;
    margin-top: 2rem;
  }
  .image-wrapper {
    width: 300px;
    height: 300px;
  }
}
select option.signed-option { background-color: #ccffff; color: black; }