header {
  max-width: 80em;
  margin: 0 auto;
}

#header {
  border-bottom: 20px double #427E85;
}

.sold {
  margin-top: 10px;
  color: red;
  font-weight: bold;
}

main {
  max-width: 70em;
  margin: 0 auto;
  font-family: sans-serif;
  color: #343434;
}
main h1, main h2, main h3, main p, main ul, main li {
  color: #343434;
}
main img {
  width: 100%;
  height: auto;
  display: block;
}
main .shop-grid {
  padding: 1em;
}
main .shop-grid .box {
  margin: 1.5em 0;
}
main .shop-grid .box img {
  border-radius: 10px;
}
main .shop-grid .box .text {
  text-align: center;
  padding: 1em;
}
main .shop-grid .box .text .button {
  background: #343434;
  padding: 10px 15px;
  width: 90%;
  display: block;
  margin: 1em auto;
  border-radius: 5px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}
main .shop-grid .box .text .button:hover {
  background: rgba(52, 52, 52, 0.5);
}
main .shop-grid .box .text h2 {
  color: #427E85;
}
main .shop-grid .box .text h2, main .shop-grid .box .text p {
  text-align: left;
}

@media screen and (min-width: 800px) {
  main .shop-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}
a.back {
  color: #343434;
  font-size: 0.75em;
}
a.back:hover {
  color: rgba(52, 52, 52, 0.5);
}

.product {
  display: grid;
  gap: 2em;
  padding: 2em;
  max-width: 700px;
  margin: 0 auto;
}
.product img {
  width: 100%;
  border-radius: 10px;
}
.product .description {
  margin: 1em 0;
  line-height: 1.5;
  font-size: 0.95rem;
  color: #444;
}
.product .info {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.product .info h1 {
  margin-bottom: 0.5em;
}
.product .info h2 {
  color: #427E85;
}
.product .info p {
  margin: 0.3em 0;
}
.product .info .paypal {
  opacity: 0.5;
}
.product .info .price span {
  font-size: 2rem;
  color: rgb(91, 91, 159);
}
.product .info button.buy-btn {
  margin-top: 1em;
  padding: 10px 15px;
  border: none;
  background: #343434;
  color: white;
  cursor: pointer;
  border-radius: 5px;
}
.product .info button.buy-btn:hover {
  background: rgba(52, 52, 52, 0.5);
}
.product .info button:disabled {
  background: #ccc;
  color: red;
  cursor: not-allowed;
  opacity: 0.6;
  padding: 10px;
  border: none;
  outline: none;
}

.faq {
  max-width: 90%;
  margin: auto;
}
.faq details {
  border-bottom: 1px solid #ddd;
  padding: 10px 0;
}
.faq details p {
  opacity: 0;
  transform: translateY(-5px);
  transition: all 0.2s ease;
}
.faq details[open] p {
  opacity: 1;
  transform: translateY(0);
}
.faq summary {
  cursor: pointer;
  font-weight: bold;
}
.faq p {
  margin: 1em 0 0 1em;
  color: #444;
}

.site-footer {
  margin-top: 4em;
  padding: 2em 1em;
  text-align: center;
  font-size: 0.9rem;
  color: #555;
}
.site-footer a {
  color: inherit;
  text-decoration: underline;
}
.site-footer .small {
  font-size: 0.8rem;
  opacity: 0.7;
}