/* Knowledge management article collection */

.km-introduction {
  max-width: 52rem;
  margin-bottom: 1rem;
}

.km-introduction p {
  font-size: 1.08rem;
}

.km-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.48fr) minmax(0, 1.52fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.km-article-nav {
  position: sticky;
  top: 6.5rem;
}

.km-article-buttons {
  display: grid;
  gap: 0.65rem;
}

.km-article-button {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr);
  gap: 0.75rem;
  width: 100%;
  padding: 0.9rem;
  color: var(--ink);
  text-align: left;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.km-article-button:hover,
.km-article-button:focus-visible {
  color: var(--accent);
  background: var(--surface);
}

.km-article-button.is-active {
  color: var(--accent-dark);
  background: var(--surface);
  border-color: var(--accent);
}

.km-article-button__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  color: white;
  background: var(--ink);
  border-radius: 50%;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
}

.km-article-button.is-active .km-article-button__number {
  background: var(--accent);
}

.km-article-button strong {
  display: block;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
  line-height: 1.25;
}

.km-article-button small {
  display: block;
  margin-top: 0.3rem;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.72rem;
}

.km-articles {
  min-width: 0;
}

.km-article {
  max-width: 760px;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.km-article[hidden] {
  display: none;
}

.km-article__header {
  margin-bottom: 2rem;
}

.km-article__header h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.km-article p {
  font-size: 1.08rem;
  line-height: 1.8;
}

.km-article h3 {
  margin-top: 2.5rem;
}

.km-article__figure {
  float: right;
  width: min(42%, 280px);
  margin: 0 0 1.5rem 2rem;
}

.km-article__figure img {
  width: 100%;
  height: auto;
}

.km-article__figure figcaption {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.km-sequence-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.km-sequence-button {
  padding: 0;
  color: var(--ink);
  background: none;
  border: 0;
  cursor: pointer;
}

#km-previous {
  justify-self: start;
}

#km-next {
  justify-self: end;
}

.km-sequence-button:disabled {
  color: var(--muted);
  cursor: default;
  opacity: 0.45;
}

#km-position {
  margin: 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.8rem;
}


/* Knowledge management responsive layout */

@media (max-width: 800px) {
  .km-layout {
    grid-template-columns: 1fr;
  }

  .km-article-nav {
    position: static;
  }

  .km-article-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .km-article {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .km-article-buttons {
    grid-template-columns: 1fr;
  }

  .km-article__figure {
    float: none;
    width: 100%;
    max-width: 30rem;
    margin: 0 auto 1.5rem;
  }

  .km-sequence-nav {
    grid-template-columns: 1fr 1fr;
  }

  #km-position {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
  }

  #km-previous {
    grid-column: 1;
    grid-row: 2;
  }

  #km-next {
    grid-column: 2;
    grid-row: 2;
  }
}