.collection-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);

  @media (min-width: 768px) {
    grid-template-columns: repeat(3, 1fr);
  }

  @media (min-width: 1024px) {
    grid-template-columns: repeat(4, 1fr);
  }
}

.collection-card {
  display: flex;
  flex-direction: column;
  aspect-ratio: 3 / 4;
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-spring-wood-50) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.9),
    0 1px 2px rgb(0 0 0 / 0.04),
    0 4px 10px -2px rgb(0 0 0 / 0.08),
    0 12px 24px -8px rgb(0 0 0 / 0.08);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);

  &:hover {
    color: inherit;
    transform: translateY(-1px);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 0.9),
      0 1px 2px rgb(0 0 0 / 0.04),
      0 6px 12px -3px rgb(0 0 0 / 0.08),
      0 16px 24px -10px rgb(0 0 0 / 0.08);

    .collection-card__name {
      color: var(--color-primary-700);
    }
  }

  &:focus-visible {
    outline: 2px solid var(--color-primary-900);
    outline-offset: 2px;
  }
}

.collection-card__name {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.005em;
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-normal);
}

.collection-card__description {
  font-size: 0.875rem;
  color: var(--color-armadillo-500);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.collection-card__articles {
  display: none;

  @media (min-width: 640px) {
    position: relative;
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid color-mix(in srgb, var(--color-armadillo-200) 40%, transparent);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }
}

.collection-card__articles--has-more::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2.25rem;
  background: linear-gradient(to bottom, transparent, var(--color-spring-wood-50));
  pointer-events: none;
}

.collection-card__article {
  font-size: 0.75rem;
  color: var(--color-armadillo-600);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collection-card__meta {
  margin-top: auto;
  padding-top: var(--space-sm);
  font-size: 0.6875rem;
  color: var(--color-armadillo-400);
}

.collection-card__meta > * + *::before {
  content: "·";
  margin-inline: 0.375rem;
  color: var(--color-armadillo-300);
}

.section,
.ungrouped {
  margin-top: var(--space-md);
  background: rgb(0 0 0 / 0.03);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.ungrouped:not(:has(.article-item)):not(:has(.empty-state)) {
  display: none;
}

.section__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-inline: var(--space-xs);
  margin-bottom: var(--space-md);
}

.section__header > .dropdown {
  margin-left: auto;
}

.section__name {
  display: flex;
  align-items: center;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-armadillo-900);
}

.section__drag-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0.25rem;
  margin-left: calc(var(--space-sm) * -1);
  margin-right: calc(var(--space-xs) * -1);
  color: var(--color-armadillo-200);
  cursor: grab;
  transition: color var(--transition-fast);
}

.section__header:hover .section__drag-handle {
  color: var(--color-armadillo-400);
}

.section__drag-handle:active {
  cursor: grabbing;
}

.section.sortable-fallback {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-spring-wood-500);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  box-shadow: var(--shadow-md);
  margin-top: 0;
  height: auto !important;
  cursor: grabbing;
}

.section.sortable-fallback .article-list {
  display: none;
}

.section.sortable-fallback .section__header {
  margin-bottom: 0;
}

.section.sortable-fallback::before {
  content: "";
  position: absolute;
  inset: 4px -4px -4px 4px;
  background: var(--color-white);
  border: 1px solid var(--color-spring-wood-400);
  border-radius: var(--radius-md);
  z-index: -1;
  box-shadow: var(--shadow-sm);
}

.section.sortable-fallback::after {
  content: "";
  position: absolute;
  inset: 8px -8px -8px 8px;
  background: var(--color-spring-wood-50);
  border: 1px solid var(--color-spring-wood-300);
  border-radius: var(--radius-md);
  z-index: -2;
}

.section.sortable-ghost {
  opacity: 0.4;
}