.whitening-series {
  padding: 5rem 0;
  background: #fff;
  color: #1a1a1a;
  scroll-margin-top: 5rem;
}

.whitening-container {
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 3rem;
}

.whitening-header {
  text-align: center;
  margin-bottom: 3.75rem;
}

.whitening-label {
  font-size: 0.75rem;
  letter-spacing: 0.25rem;
  color: #999;
  margin-bottom: 0.75rem;
}

.whitening-title {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.125rem;
}

.whitening-banner {
  margin-bottom: 3.75rem;
  border-radius: 0.75rem;
  overflow: hidden;
}

.whitening-banner img {
  display: block;
  width: 100%;
  height: auto;
}

.whitening-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2.5rem;
  max-width: 62.5rem;
  margin: 0 auto;
}

.whitening-card {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.whitening-image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 15rem;
  padding: 1.875rem;
  margin-bottom: 1.25rem;
  transition: transform 0.3s;
}

.whitening-card:hover .whitening-image {
  transform: translateY(-0.25rem);
}

.whitening-image img {
  width: 100%;
  height: 10rem;
  object-fit: contain;
}

.whitening-name {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 400;
}

.whitening-buy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  margin-top: auto;
  padding: 0.625rem 1.5rem;
  border-radius: 0.25rem;
  background: #1a1a1a;
  color: #fff;
  font-size: 0.8125rem;
  letter-spacing: 0.0625rem;
  text-decoration: none;
  transition: background 0.3s;
}

.whitening-buy:hover {
  background: #333;
}

.whitening-buy:focus-visible {
  outline: 0.125rem solid #806039;
  outline-offset: 0.25rem;
}

@media (max-width: 64rem) {
  .whitening-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 48rem) {
  .whitening-container {
    padding: 0 1.5rem;
  }

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

  .whitening-title {
    font-size: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .whitening-image,
  .whitening-buy {
    transition: none;
  }
}