.document-cover {
  --cover-padding: var(--block-space-half);
  --cover-radius: 4px;
  --cover-fold-size: 1.5rem;
  --cover-border-color: var(--color-border);
  --cover-bg: var(--color-canvas);
  --cover-width: 100%; 
  
  position: relative;
  width: var(--cover-width);
  aspect-ratio: 210 / 297;
  background: var(--cover-bg);
  border: 1px solid var(--cover-border-color);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease;

  clip-path: polygon(
    0 0,
    calc(100% - var(--cover-fold-size)) 0,
    100% var(--cover-fold-size),
    100% 100%,
    0 100%
  );
}

.document-cover:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.document-cover__preview {
  position: absolute;
  inset: var(--cover-padding);
  display: flex;
  align-items: center;
  justify-content: center;
}

.document-cover__thumbnail {
  max-width: 100%;
  max-height: 100%;
}

.document-cover__footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--inline-space);
  padding: var(--cover-padding);
  background: var(--cover-bg);
}

.document-cover__meta {
  flex: 1;
  min-width: 0;
}

.document-cover__filename {
  display: block;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.document-cover__badge {
  flex-shrink: 0;
}