/* Book and training index; colours and type follow the PGSQL.CC theme. */

#pg-tutorials a {
  text-decoration: none;
}

#pg-tutorials a:focus-visible {
  outline: 2px solid var(--pg-link-hover);
  outline-offset: 4px;
}

.tutorials-hero {
  margin-bottom: 2.4rem;
  padding: 1.35rem 1.4rem 1.15rem;
  border: 1px solid var(--pg-line);
  border-top: 3px solid var(--pg-blue);
  border-radius: var(--pg-radius-sm);
  background: var(--pg-surface);
}

#pg-tutorials .tutorials-hero h1 {
  margin: 0 0 .65rem;
  color: var(--pg-heading);
  font-size: clamp(1.65rem, 3.1vw, 2.7rem);
  letter-spacing: -.035em;
}

.tutorials-lead {
  max-width: 44em;
  margin: 0;
  color: var(--pg-ink-2);
  font-size: 1rem;
  line-height: 1.85;
}

.tutorials-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 1.3rem;
  padding-top: .85rem;
  border-top: 1px solid var(--pg-line);
  font-size: .86rem;
  font-weight: 600;
}

.tutorials-section {
  margin-bottom: 3rem;
  scroll-margin-top: 18px;
}

.tutorials-section__head {
  margin-bottom: 1.2rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--pg-line-strong);
}

#pg-tutorials .tutorials-section__head h2 {
  margin: 0;
  color: var(--pg-heading);
  font-size: 1.65rem;
  line-height: 1.3;
}

#pg-tutorials .tutorials-section__head h2::after {
  content: none;
}

#pg-tutorials .tutorial-collection-title {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--pg-heading);
  white-space: nowrap;
}

#pg-tutorials .tutorial-collection-title:hover {
  color: var(--pg-link-hover);
}

.tutorial-collection-logo {
  flex: none;
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.tutorial-collection-arrow {
  color: var(--pg-ink-2);
  font-size: 1rem;
  font-weight: 400;
}

.tutorials-books-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tutorial-book {
  min-width: 0;
  border: 1px solid var(--pg-line);
  border-top: 3px solid var(--tutorial-accent, var(--pg-blue));
  border-radius: var(--pg-radius-sm);
  background: var(--pg-surface);
}

.tutorial-book--teal { --tutorial-accent: #2c7c78; }
.tutorial-book--blue { --tutorial-accent: #3674a1; }
.tutorial-book--green { --tutorial-accent: #3d7c62; }
.tutorial-book--amber { --tutorial-accent: #b27731; }
.tutorial-book--slate { --tutorial-accent: #637989; }
.tutorial-book--plum { --tutorial-accent: #755d91; }
.tutorial-book--navy { --tutorial-accent: #315d82; }

#pg-tutorials .tutorial-book__link {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  height: 100%;
  padding: 18px;
  border-radius: inherit;
  font-weight: 400;
}

.tutorial-book__link:hover,
.tutorial-course > a:hover {
  background: var(--pg-wash);
}

.tutorial-cover {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 152px;
  background: var(--pg-surface-2);
  box-shadow: var(--pg-shadow-sm);
}

.tutorial-cover img,
.tutorial-course__cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.tutorial-book__body {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
}

#pg-tutorials .tutorial-book h3 {
  margin: 0 0 .6rem;
  color: var(--pg-heading);
  font-size: 1.125rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.tutorial-description {
  margin: 0;
  color: var(--pg-ink-2);
  font-size: .88rem;
  line-height: 1.65;
}

.tutorial-meta {
  display: grid;
  gap: 3px;
  margin: auto 0 0;
  padding: .8rem 0 0;
  color: var(--pg-ink-2);
  font-size: .75rem;
  line-height: 1.5;
  list-style: none;
}

.tutorial-course-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tutorial-course {
  min-width: 0;
  border: 1px solid var(--pg-line);
  border-top: 2px solid var(--pg-blue);
  border-radius: var(--pg-radius-sm);
  background: var(--pg-surface);
}

#pg-tutorials .tutorial-course > a {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  height: 100%;
  padding: 14px 16px;
  border-radius: inherit;
  font-weight: 400;
}

.tutorial-course__cover {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 76px;
  border: 1px solid var(--pg-line);
  background: var(--pg-surface-2);
}

.tutorial-course__cover--identity {
  border: 0;
  background: transparent;
}

.tutorial-course__cover--identity img {
  width: 44px;
  height: 44px;
}

.tutorial-course__body {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.tutorial-course__code-label {
  color: var(--pg-ink-2);
  font: 600 .7rem/1 var(--pg-font-mono);
}

.tutorial-course__body strong {
  display: block;
  overflow: hidden;
  color: var(--pg-heading);
  font-size: .95rem;
  line-height: 1.5;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.tutorial-course__description {
  display: block;
  overflow: hidden;
  color: var(--pg-ink-2);
  font-size: .82rem;
  line-height: 1.5;
  white-space: nowrap;
  text-overflow: ellipsis;
}

@media (max-width: 1100px) {
  #pg-tutorials .tutorial-book__link {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 14px;
    padding: 14px;
  }

  .tutorial-cover {
    width: 88px;
    height: 120px;
  }
}

@media (max-width: 767.98px) {
  .tutorials-hero {
    padding: 1rem;
  }

  .tutorials-books-grid,
  .tutorial-course-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  #pg-tutorials .tutorials-section__head h2 {
    font-size: 1.25rem;
  }

  #pg-tutorials .tutorial-course > a {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
  }

  .tutorial-course__cover {
    width: 44px;
    height: 60px;
  }
}

@media (max-width: 380px) {
  #pg-tutorials .tutorial-book__link {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
  }

  .tutorial-cover {
    width: 72px;
    height: 98px;
  }
}