.xp-documents-window { left: 7%; top: 6%; width: min(1080px, 88vw); height: min(720px, calc(100vh - 100px)); }
.documents-content { min-height: 0; }
.books-grid { position: relative; display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); align-content: start; gap: 24px 20px; overflow-x: hidden; overflow-y: scroll; padding: 22px; background: #fff; user-select: none; }
.book-shortcut { position: relative; z-index: 1; display: flex; min-width: 0; height: 174px; flex-direction: column; align-items: center; gap: 7px; border: 1px solid transparent; padding: 3px; color: #111; background: transparent; font: 11px/1.25 Tahoma, sans-serif; text-align: center; cursor: default; touch-action: none; }
.book-shortcut img { display: block; width: 92px; height: 132px; border: 1px solid #888; object-fit: cover; background: #fff; box-shadow: 3px 3px 4px rgba(0,0,0,.28); pointer-events: none; }
.book-shortcut span { max-width: 126px; padding: 1px 3px; pointer-events: none; }
.book-shortcut.is-selected span { color: #fff; background: #316ac5; }
.book-shortcut:focus-visible { outline: 1px dotted #000; outline-offset: -2px; }
.books-grid.is-freeform { display: block; min-height: 0; }
.books-grid.is-freeform .book-shortcut { position: absolute; width: 132px; }
.book-shortcut.is-dragging { z-index: 4; opacity: .82; }
.books-selection-box { position: absolute; z-index: 3; border: 1px solid #316ac5; background: rgba(49,106,197,.22); pointer-events: none; }
@media (max-width:760px){.xp-documents-window{left:2%;top:3%;width:96vw}.books-grid{grid-template-columns:repeat(auto-fill,minmax(112px,1fr));padding:14px}.book-shortcut{height:158px}.book-shortcut img{width:80px;height:116px}}

.xp-ebooks-window { left: 10%; top: 8%; }
.ebook-shortcut { position:relative; z-index:1; display:flex; min-width:0; height:174px; flex-direction:column; align-items:center; gap:7px; border:1px solid transparent; padding:3px; color:#111; background:transparent; font:11px/1.25 Tahoma,sans-serif; text-align:center; cursor:default; touch-action:none; }
.ebook-shortcut img { display:block; width:92px; height:132px; border:1px solid #888; object-fit:cover; background:#fff; box-shadow:3px 3px 4px rgba(0,0,0,.28); pointer-events:none; }
.ebook-shortcut span { max-width:126px; padding:1px 3px; pointer-events:none; }
.ebook-shortcut.is-selected span { color:#fff; background:#316ac5; }
.ebook-shortcut:focus-visible { outline:1px dotted #000; outline-offset:-2px; }
.books-grid.is-freeform .ebook-shortcut { position:absolute; width:132px; }
.ebook-shortcut.is-dragging { z-index:4; opacity:.82; }
@media (max-width:760px){.ebook-shortcut{height:158px}.ebook-shortcut img{width:80px;height:116px}}
#ebooks-grid { grid-template-columns:repeat(auto-fit,minmax(112px,132px)); column-gap:16px; justify-content:start; }

/* Accessible three-line book title truncation. */
.book-shortcut,.ebook-shortcut{height:190px;}
.book-shortcut span,.ebook-shortcut span{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;max-height:3.75em;text-overflow:ellipsis;}