/* Styling for the Bible index. */
table {
  table-layout: fixed; /* Equal-width columns. */
}

td {
  vertical-align: top;
  padding: 10px 30px;
}

td:first-child {
  /* Adds a border to the right side of the first cell. */
  border-right: 1px solid var(--light-gray);
}

.index-book-name {
  padding: 2px;
  border-radius: 6px;
  font-size: 1.1rem;
  transition:
    background-color 0.2s ease,
    transform 0.2s ease;
  user-select: none;
}

.index-book-name:hover {
  background-color: #e9ecef;
}

.index-book-name:active {
  transform: scale(0.99);
}

/* Container inside collapsible for grid/flex layout of links */
.index-book-chapter-list > div {
  min-height: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 10px 15px;
  transition:
    padding 0.5s ease-out,
    opacity 0.5s ease-out;
}

.index-book-chapter-list:not(.is-open) > div {
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

.index-book-chapter-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  border-radius: 6px;
  background-color: white;
  border: 1px solid var(--light-gray);
  color: var(--midnight-blue);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.2s ease-in-out;
  box-shadow: 0 1px 3px rgb(0 0 0 / 5%);
}

@media (hover: hover) {
  .index-book-chapter-list a:hover {
    background-color: var(--bright-sky-blue);
    color: white;
    border-color: var(--bright-sky-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgb(0 0 0 / 10%);
  }
}

.index-book-chapter-list a:active {
  transform: scale(0.95) translateY(0);
  box-shadow: 0 1px 2px rgb(0 0 0 / 5%);
}

hr {
  border: none;
  border-top: 2px dashed var(--light-gray);
  margin: 30px 0;
}

/* Mobile responsive layout */
@media (width <= 800px) {
  td {
    padding: 10px;
  }

  td:first-child {
    border-right: none;
  }
}