.form-control:focus {
  color: var(--bs-body-color);
  background-color: var(--bs-body-bg);
  border-color: #b7dcb6;
  outline: 0;
  box-shadow: 0 0 0 .25rem rgba(106,191,105,0.3);
}

.form-control {
  background-color: rgba(255,255,255,0.5);
  border-radius: 7px;
}

.form-check-input:checked {
  background-color: #16bd24;
  border-color: rgb(24, 209, 39);
}

/* privacy policy */

.privacy-policy {
  padding: 1rem;
}

.privacy-policy h3 {
  font-family: 'Noto Sans';
  font-weight: 600;
}

.privacy-policy h2 {
  font-family: 'Noto Sans';
  font-weight: 500;
  color: #2c3e50;
}

.privacy-policy p {
  font-size: 1rem;
  line-height: 1.6;
  color: #34495e;
}

.privacy-policy ul {
  list-style-type: disc;
  margin-left: 20px;
}

.card-img-top {
  height: 250px;
  width: 100%;
  object-fit: contain;
}

.title-underline {
  width: 70px;
  height: 4px;
  background-color: #3e9614;
  margin-top: 0.25rem;
  border-radius: 2px;
}

/* Pulsante con logo Amazon */

.book-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #4CAF50;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 500;
  transition: background 0.3s;
}

.book-link-btn:hover {
  background-color: #45a049;
}

.author-img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 50%;
}

.col-lg-4.sticky-sidebar {
  z-index: 100;
  position: sticky;
  top: 8.5rem;
  align-self: start;
  height: fit-content;
}