.purchase-section {
  margin: var(--gap) auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pricing-cards {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap);
  width: 100%;
  margin-top: 12px;
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
}

.pricing-cards.open {
  max-height: 1200px;
  opacity: 1;
  visibility: visible;
}

.pricing-card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: calc(100% / 3 - 3 * var(--gap));
  min-width: 220px;
}

.pricing-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.pricing-card p {
  margin: 4px 0;
}

.pricing-card .button {
  align-self: center;
  cursor: pointer;
}

.add-to-cart::before {
  content: "🛒";
  margin-right: 6px;
}

.add-to-cart[disabled],
.purchase-section .button[disabled],
.purchase-section button[disabled] {
  opacity: 0.5;
  pointer-events: none;
  color: var(--accent);
  background: var(--lite);
}

.purchase-section .button {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--lite);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 16px;
  transition: all 0.3s ease-in-out;
  margin: auto;
  cursor: pointer;
}

@media (hover:hover) {
  .purchase-section .button:hover {
    background: var(--lite);
    color: var(--accent);
  }
}

.purchase-section .button.primary {
  font-size: 20px;
  padding: 0.5% 2%;
}

@media (max-width: 900px) {
  .pricing-card {
    width: 100%;
  }
}