/* ---------- Библиотека ---------- */

.dept-docs--library .about-title {
  max-width: 28ch;
}

.lib-resource {
  align-items: start;
}

.lib-resource .dept-doc__title {
  display: block;
}

.lib-resource__desc {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--muted);
}

.lib-section {
  display: grid;
  gap: 12px;
}

.lib-spoiler.lib-section {
  display: block;
  gap: 0;
}

.dept-docs--library {
  gap: 28px;
}

.lib-spoiler {
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--cream) 12%, transparent);
  border-radius: 18px;
  background: color-mix(in srgb, var(--cream) 4%, transparent);
  overflow: clip;
}

.lib-spoiler__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-sizing: border-box;
  min-height: 52px;
  padding: 12px 18px;
  list-style: none;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s ease;
}

.lib-spoiler__summary::-webkit-details-marker {
  display: none;
}

.lib-spoiler__summary::marker {
  content: "";
}

.lib-spoiler__summary:hover {
  background: color-mix(in srgb, var(--cream) 6%, transparent);
}

.lib-spoiler__summary:focus-visible {
  outline: 2px solid var(--magenta);
  outline-offset: -2px;
}

.lib-spoiler .dept-docs__subhead {
  margin: 0;
  padding: 0;
  flex: 1;
  font-family: var(--font-ui);
  font-size: clamp(14px, 1.5vw, 16px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  pointer-events: none;
}

.lib-spoiler__icon {
  flex: 0 0 auto;
  align-self: center;
  width: 28px;
  height: 28px;
  margin: 0;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--cream) 18%, transparent);
  background:
    linear-gradient(var(--cream), var(--cream)) center / 12px 1.5px no-repeat,
    linear-gradient(var(--cream), var(--cream)) center / 1.5px 12px no-repeat;
  transition: transform 0.22s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.lib-spoiler[open] .lib-spoiler__icon {
  transform: rotate(45deg);
  border-color: color-mix(in srgb, var(--magenta) 45%, transparent);
  background:
    linear-gradient(var(--magenta), var(--magenta)) center / 12px 1.5px no-repeat,
    linear-gradient(var(--magenta), var(--magenta)) center / 1.5px 12px no-repeat;
}

.lib-spoiler .dept-docs__list {
  padding: 10px 18px 18px;
}

@media (max-width: 720px) {
  .lib-spoiler__summary {
    padding: 12px 14px;
  }

  .lib-spoiler .dept-docs__list {
    padding: 8px 14px 14px;
  }
}