/* The folding sheet is a rigid three-panel paper object, never a flattened fade. */
.delivery-r25{perspective:1800px;transform-style:preserve-3d}
.delivery-r25 .delivery-r5-sheet{transform-origin:50% 50%;z-index:2}
.delivery-r25 .delivery-r5-panel{height:calc(100% / 3);overflow:visible}
.delivery-r25 .delivery-r5-face{background-color:#e4c79a;background-image:var(--paper-wash);background-size:112% 340%;background-position:50% 50%;border:0;border-left:1.5px solid #51351b;border-right:1.5px solid #51351b;box-shadow:inset 0 1px #fff5dc66}
.delivery-r25 .delivery-r5-panel.part-0 .front{border-top:1.5px solid #51351b}
.delivery-r25 .delivery-r5-panel.part-2 .front{border-bottom:1.5px solid #51351b}
.delivery-r25 .delivery-r5-face.back{background-image:linear-gradient(#7045190d,#7045190d),var(--paper-wash);background-size:100% 100%,112% 340%;background-position:center;box-shadow:inset 0 -1px #99704788,inset 0 1px #ffe7b880}
.delivery-r25 .delivery-r5-face::after{content:"";position:absolute;inset:0;background:#62472a;opacity:var(--fold-shade,0);pointer-events:none}
.delivery-r25 .delivery-r5-print{color:#594732}
.delivery-r25 .delivery-r5-panel.part-0 .back{box-shadow:0 1px 1px #51351955,inset 0 1px #fff5dc}
.delivery-r25-envelope{position:absolute;transform-style:preserve-3d}
.delivery-r25-back,.delivery-r25-pocket,.delivery-r25-sealed{position:absolute;inset:0}
.delivery-r25 svg{display:block;width:100%;height:100%;overflow:visible}
.delivery-r25-back{transform:translateZ(-3px);filter:drop-shadow(0 2px 3px #3b2a1638)}
.delivery-r25-pocket{transform:translateZ(4px)}
.delivery-r25-flap{position:absolute;left:0;top:0;width:100%;height:100%;transform-origin:50% 1.714285714%;transform-style:preserve-3d}
.delivery-r25-flap>.front,.delivery-r25-flap>.back{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.delivery-r25-flap>.front{transform:translateZ(.25px);filter:drop-shadow(0 2px 1px rgb(73 51 27 / var(--flap-shadow,0)))}
/* Both faces share the same outline and hinge. Rotating the reverse around X
   reflected it across the full envelope height and detached the open lid. */
.delivery-r25-flap>.back{transform:rotateY(180deg) translateZ(.25px)}
.delivery-r25-flap>.back svg{transform:scaleX(-1);filter:brightness(.94)}
/* r52: the lid is now one flat vector SVG re-projected per angle by JS (flapPaths);
   only translateZ moves it between "open, behind the letter" and "closing, in front". */
.delivery-r25-flap>svg{position:absolute;inset:0}
.delivery-r25-sealed{transform:translateZ(7px);filter:drop-shadow(0 3px 2px #49331b30)}
@media(prefers-reduced-motion:reduce){.delivery-r25{will-change:auto}}

/* Same writing faces and ink at SEND: only leaf surfaces clip the snapshot. */
.delivery-r30 .delivery-r5-face{left:3.3%;right:3.3%;overflow:hidden}
.delivery-r30 .delivery-r30-content{position:absolute;pointer-events:none}
.delivery-r30 .delivery-r5-face.front{transform:translateZ(.25px)}
.delivery-r30 .delivery-r5-face.back{transform:rotateX(180deg) translateZ(.25px)}
.delivery-r30 .delivery-r5-panel.part-2 .back{box-shadow:inset 0 1px #ffe8bd80,0 1px 2px #51351945}