.book3d-stage{width:var(--bk-w);height:calc(var(--bk-w) * 1.5);perspective:2400px;perspective-origin:58% 42%;transition:transform .88s cubic-bezier(.42,.02,.18,1)}.book3d{--bk-t:calc(var(--bk-w) * .14);--bk-square:calc(var(--bk-w) * .019);width:var(--bk-w);height:calc(var(--bk-w) * 1.5);transform-style:preserve-3d;transition:transform .7s cubic-bezier(.2,.7,.3,1);position:relative;transform:rotateY(-26deg)rotateX(5deg)}.book3d__cover{transform-origin:0;transform:translateZ(calc(var(--bk-t) / 2));transform-style:preserve-3d;border-radius:1px 4px 4px 1px;transition:transform .88s cubic-bezier(.42,.02,.18,1);position:absolute;inset:0}.book3d__cover-art{object-fit:cover;border-radius:inherit;backface-visibility:hidden;width:100%;height:100%;position:absolute;inset:0}.book3d__cover-sheen{border-radius:inherit;pointer-events:none;backface-visibility:hidden;background:linear-gradient(90deg,#00000070 0%,#00000038 2.5%,#00000012 7%,#0000 20%,#ffffff08 70%,#ffffff1f 96%,#fff3 100%);position:absolute;inset:0;box-shadow:inset 0 0 0 1px #ffffff12}.book3d__spine{width:var(--bk-t);transform-origin:0;height:100%;transform:translateZ(calc(var(--bk-t) / 2)) rotateY(-90deg);backface-visibility:hidden;background-position:0;background-size:8000% 100%;border-radius:2px 0 0 2px;position:absolute;top:0;left:0}.book3d__spine:after{content:"";border-radius:inherit;background:linear-gradient(90deg,#000000a8 0%,#00000052 9%,#0000000f 28%,#ffffff12 48%,#00000014 70%,#0000005c 91%,#000000ad 100%);position:absolute;inset:0}.book3d__block{top:var(--bk-square);right:var(--bk-square);width:calc(var(--bk-t) - 2px);height:calc(100% - var(--bk-square) * 2);transform-origin:100%;transform:translateZ(calc(var(--bk-t) / 2 - 1px)) rotateY(90deg);backface-visibility:hidden;background:linear-gradient(90deg,#0000004d 0%,#0000 20% 76%,#00000042 100%),repeating-linear-gradient(90deg,#e6dece 0 1px,#faf6ed 1px 2.5px);border-radius:0 2px 2px 0;position:absolute}.book3d__hint{text-align:center;opacity:.7;color:var(--text-secondary);margin-top:20px;font-size:12px;transition:opacity .2s}@media (prefers-reduced-motion:reduce){.book3d-stage,.book3d,.book3d__cover,.book3d__block,.book3d__spine,.book3d__cover-sheen{transition:none!important;animation:none!important}}.book3d-mount{position:relative}.book3d-mount__css{z-index:0;position:relative}.book3d-mount__gl{z-index:1;pointer-events:none;transition:opacity .42s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.book3d-mount__css{transition:opacity .42s}.book3d-hover .book3d-stage{transition:transform .3s}.book3d-hover:hover .book3d-stage,.group:hover .book3d-hover .book3d-stage{transform:scale(1.05)}@media (prefers-reduced-motion:reduce){.book3d-hover:hover .book3d-stage,.group:hover .book3d-hover .book3d-stage{transform:none}}