ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

.back-link {
  display: inline-block;
  padding: 8px 15px;
  text-decoration: none;
  color: #4e75ff;
  font-size: 1.1em;
  font-weight: 500;
  border: 1px solid #4e75ff;
  border-radius: 8px;
  transition: background-color 0.3s ease, color 0.3s ease,
    border-color 0.3s ease, transform 0.2s ease;
  margin-bottom: 25px;
}

.back-link:hover {
  background-color: #4e75ff;
  color: #ffffff;
  border-color: #4e75ff;
  transform: translateY(-2px);
}

.back-link:active {
  background-color: #2c58e0;
  border-color: #2c58e0;
  transform: translateY(0);
}

.container {
  max-width: 1440px;
  padding: 100px 156px;
  margin: 0 auto;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 48px 24px;
}

.gallery-item {
  flex-basis: calc((100% - 2 * 24px) / 3);
}