/* Transform containers must stay unflattened. Filters, opacity, blend modes,
   and clipping belong on individual faces or their decorative children. */
.front-cover,.turning-page{transform-style:preserve-3d;filter:none;opacity:1;overflow:visible;isolation:auto;mix-blend-mode:normal}
.cover-face{background-image:linear-gradient(100deg,#101e2e,#20364c 30%,#172a3e 75%,#111f2f);background-size:100% 100%;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.cover-front{transform:translateZ(.6px);color:#c4ac83}
.cover-back{transform:rotateY(180deg) translateZ(.6px);padding:0;display:block}
.cloth-canvas{position:absolute;inset:0;width:100%;height:100%;border-radius:inherit;pointer-events:none;z-index:0}
.cover-front .cover-frame{z-index:1}
.cover-main{position:absolute;inset:0;display:block;z-index:1;pointer-events:none}
.cover-emblem{position:absolute;top:13%;left:20%;width:62%;height:34%;object-fit:contain;margin:0;filter:none;mix-blend-mode:normal;opacity:1}
.cover-wordmark{position:absolute;top:48%;left:14%;width:75%;height:9%;object-fit:contain;margin:0;filter:none;opacity:1}
.cover-main .ornament{position:absolute;top:57.3%;left:29%;width:44%;height:3%;margin:0;color:#c4ac83;gap:10px;font-size:22px}
.cover-type{position:absolute;top:63%;left:9%;right:7%;font-size:clamp(12px,1.12vw,15px);line-height:1.65;letter-spacing:.13em;text-shadow:0 1px #071525}
.cover-title{position:absolute;top:77%;left:9%;right:7%;margin:0;font-size:clamp(12px,1.08vw,14px);line-height:1.55;letter-spacing:.12em}
.cover-imprint{bottom:5%;left:25%;right:23%;font-size:12px;line-height:1.6;letter-spacing:.12em;z-index:1;pointer-events:none}
.cover-imprint span{font-size:12px}
.cover-blindmark{right:6%;bottom:4%;z-index:1;pointer-events:none}
.cover-back-base{position:absolute;inset:0;z-index:1;padding:12%;display:flex;flex-direction:column;justify-content:flex-end;pointer-events:none}
.cover-back-brand{width:100%;margin:auto 0;transform:translateY(calc(var(--page-width)*-.12));display:flex;flex-direction:column;align-items:center;text-align:center}
.cover-back .cover-back-brand img{height:auto;filter:none;mix-blend-mode:normal;opacity:1}
.cover-back .cover-back-brand .cover-back-emblem{width:56%;margin:0 0 5%}
.cover-back .cover-back-brand .cover-back-wordmark{width:58%;margin:0 0 6%}
.cover-back-base .cover-back-intro{max-width:95%;margin:0;color:#dec9a3;font-size:calc(var(--page-width)*.035);line-height:1.55;letter-spacing:0;text-transform:none;text-wrap:balance}
.cover-back-base p{font-size:13px;letter-spacing:.18em;line-height:1.8;text-transform:uppercase;margin:0 0 12px}
.cover-back-base>span{font-size:14px;font-style:italic}
.cover-back-paper{position:absolute;inset:0;z-index:2;border-radius:inherit}
.cover-back-paper .paper-page{transform:none;visibility:visible;border-radius:inherit;overflow:hidden}
.turn-front{transform:translateZ(.4px)}
.turn-back{transform:rotateY(180deg) translateZ(.4px)}
.turn-face{backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:visible}
.turn-face .paper-page{border-radius:0;overflow:hidden;background-color:var(--page)}
.turn-shade{position:absolute;inset:0;pointer-events:none;z-index:2;background:#3d3220;opacity:0}
.desk[data-state='opening'] .left-page,.desk[data-state='closing'] .left-page{visibility:hidden}
@media(max-width:720px){
  /* Keep the two cover faces in 3D on phones too: fading the rotating parent
     would flatten them and reintroduce the mirrored back-face bug. */
  .desk[data-state='opening'] .front-cover{opacity:1;transform:rotateY(-180deg);transition:transform var(--open-duration) cubic-bezier(.25,.8,.25,1)}
  .cover-type,.cover-title{font-size:12px}
  .cover-main .ornament{margin:0;font-size:20px}
  .cover-imprint,.cover-imprint span{font-size:11px}
  .cover-back-base>span{font-size:13px}
}