/* Shared closed-cover → preview spread → back-cover experience. */
.inside-book-carousel{max-width:1040px;margin:2.25rem auto 0;position:relative}
.inside-book-viewport{position:relative;isolation:isolate;display:grid;place-items:center;aspect-ratio:2 / 1;min-height:260px;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,rgba(245,237,214,.52),rgba(255,251,239,.9));box-shadow:0 14px 38px rgba(74,46,26,.16);perspective:1100px;touch-action:pan-y pinch-zoom;overscroll-behavior-x:contain}
.inside-book-book{position:absolute;inset:0;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;border-radius:3px;background:var(--white,#fff);box-shadow:0 5px 14px rgba(74,46,26,.12),0 18px 30px rgba(74,46,26,.16);opacity:0;pointer-events:none;transform:scaleX(.5);transform-origin:center;transition:transform .72s cubic-bezier(.16,.84,.28,1),opacity .34s ease-out;will-change:transform,opacity}
.inside-book-page{min-width:0;padding:0;border:0;background:var(--white,#fff);cursor:zoom-in}.inside-book-page img{display:block;width:100%;height:100%;object-fit:contain;object-position:center;user-select:none;-webkit-user-drag:none}.inside-book-page--left{box-shadow:inset -10px 0 16px rgba(74,46,26,.035)}.inside-book-page--right{box-shadow:inset 10px 0 16px rgba(74,46,26,.035)}
.inside-book-spine{position:absolute;z-index:2;inset:0 auto 0 50%;width:14px;transform:translateX(-50%);background:linear-gradient(90deg,rgba(74,46,26,.12),rgba(255,255,255,.28) 38%,rgba(74,46,26,.08));box-shadow:0 0 10px rgba(74,46,26,.11);pointer-events:none;opacity:0;transition:opacity .38s ease}
.inside-book-cover{position:absolute;z-index:3;display:grid;place-items:center;block-size:calc(100% - 2rem);inline-size:auto;aspect-ratio:1;max-inline-size:calc(100% - 2rem);padding:0;border:0;border-radius:3px;background:var(--white,#fff);box-shadow:4px 4px 0 rgba(74,46,26,.12),8px 8px 14px rgba(74,46,26,.18);cursor:zoom-in;transform-origin:left center;will-change:transform,opacity}.inside-book-cover img{display:block;inline-size:100%;block-size:100%;object-fit:contain;object-position:center;user-select:none;-webkit-user-drag:none}
.inside-book-cover:focus-visible,.inside-book-page:focus-visible{outline:3px solid var(--sea,#2E86AB);outline-offset:-3px}.inside-book-status{position:absolute;inline-size:1px;block-size:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.inside-book-carousel[data-book-state="opening"] .inside-book-book,.inside-book-carousel[data-book-state="open"] .inside-book-book{opacity:1;pointer-events:auto;transform:scaleX(1)}.inside-book-carousel[data-book-state="opening"] .inside-book-book{animation:inside-book-open-settle .72s cubic-bezier(.16,.84,.28,1) both}.inside-book-carousel[data-book-state="opening"] .inside-book-spine,.inside-book-carousel[data-book-state="open"] .inside-book-spine{opacity:1}.inside-book-carousel[data-book-state="opening"] .inside-book-cover{animation:inside-book-cover-opening .72s cubic-bezier(.16,.84,.28,1) both}.inside-book-carousel[data-book-state="open"] .inside-book-book,.inside-book-carousel[data-book-state="open"] .inside-book-page,.inside-book-carousel[data-book-state="open"] .inside-book-spine{animation:none}.inside-book-carousel[data-book-state="open"] .inside-book-cover{opacity:0;transform:translateX(-1.5%) rotateY(-16deg)}
.inside-book-carousel[data-book-state="closing"] .inside-book-book{opacity:.04;pointer-events:none;transform:scaleX(.5)}.inside-book-carousel[data-book-state="closing"] .inside-book-spine{opacity:0}.inside-book-carousel[data-book-state="closing"] .inside-book-cover{opacity:0}.inside-book-carousel[data-book-state="back"] .inside-book-cover{animation:inside-book-back-cover-settle .34s ease-out both}
@keyframes inside-book-open-settle{0%{opacity:0;transform:scaleX(.5)}78%{opacity:1;transform:scaleX(1)}90%{transform:scaleX(1.006)}100%{opacity:1;transform:scaleX(1)}}@keyframes inside-book-cover-opening{0%{opacity:1;transform:none}58%{opacity:.88;transform:translateX(-.75%) rotateY(-8deg)}100%{opacity:0;transform:translateX(-1.5%) rotateY(-16deg)}}@keyframes inside-book-back-cover-settle{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
.inside-book-riffle{position:absolute;z-index:4;inset:7% 0;pointer-events:none;opacity:0}.inside-book-riffle i{position:absolute;top:0;bottom:0;display:block;width:7%;min-width:22px;overflow:hidden;border-inline:1px solid rgba(140,109,73,.28);border-radius:0 34% 34% 0/0 3% 3% 0;box-shadow:2px 0 6px rgba(74,46,26,.22),5px 0 10px rgba(74,46,26,.1);opacity:0;transform-origin:left center;clip-path:polygon(0 0,100% 3%,76% 50%,100% 97%,0 100%);background:#fffdf6}.inside-book-riffle img{display:block;width:100%;height:100%;object-fit:cover;transform:scale(1.18);filter:blur(2.5px) saturate(.8) brightness(1.05);opacity:.72}.inside-book-riffle i::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,253,246,.4),transparent 58%,rgba(74,46,26,.12));box-shadow:inset -1px 0 rgba(255,255,255,.78)}.inside-book-riffle i:nth-child(1){left:44%}.inside-book-riffle i:nth-child(2){left:50%}.inside-book-riffle i:nth-child(3){left:56%}.inside-book-carousel[data-book-state="opening"] .inside-book-riffle,.inside-book-carousel[data-book-state="closing"] .inside-book-riffle{opacity:1}.inside-book-carousel[data-book-state="opening"] .inside-book-riffle i,.inside-book-carousel[data-book-state="closing"] .inside-book-riffle i{animation:inside-book-riffle-sheet .34s cubic-bezier(.3,.9,.35,1) both}.inside-book-carousel[data-book-state="opening"] .inside-book-riffle i:nth-child(2),.inside-book-carousel[data-book-state="closing"] .inside-book-riffle i:nth-child(2){animation-delay:.08s}.inside-book-carousel[data-book-state="opening"] .inside-book-riffle i:nth-child(3),.inside-book-carousel[data-book-state="closing"] .inside-book-riffle i:nth-child(3){animation-delay:.16s}
@keyframes inside-book-riffle-sheet{0%{opacity:0;transform:translateX(0) rotateY(0)}22%{opacity:.94}64%{opacity:.82;transform:translateX(12%) rotateY(-9deg)}100%{opacity:0;transform:translateX(20%) rotateY(-13deg)}}
.inside-book-arrow{position:absolute;top:50%;z-index:5;width:48px;height:48px;border:0;border-radius:50%;display:grid;place-items:center;transform:translateY(-50%);background:rgba(255,255,255,.94);color:var(--bark,#4A2E1A);box-shadow:0 5px 18px rgba(74,46,26,.18);font:800 1.55rem/1 var(--sans,system-ui,sans-serif);cursor:pointer}.inside-book-arrow--prev{left:-24px}.inside-book-arrow--next{right:-24px}.inside-book-arrow:focus-visible,.inside-book-dot:focus-visible,.inside-book-lightbox button:focus-visible{outline:3px solid var(--sea,#2E86AB);outline-offset:3px}
.inside-book-dots{display:flex;justify-content:center;gap:.15rem;margin-top:.8rem}.inside-book-dot{width:44px;height:44px;border:0;border-radius:50%;padding:0;background:transparent;display:grid;place-items:center;cursor:pointer}.inside-book-dot::after{content:'';width:10px;height:10px;border-radius:50%;background:rgba(74,46,26,.22);transition:background .2s ease,transform .2s ease}.inside-book-dot[aria-current="true"]::after{background:var(--coral,#E8614A);transform:scale(1.3)}
.inside-book-lightbox{width:min(94vw,1280px);max-width:none;max-height:92vh;margin:auto;padding:0;border:0;border-radius:20px;background:transparent;overflow:visible}.inside-book-lightbox::backdrop{background:rgba(44,26,14,.82);backdrop-filter:blur(4px)}.inside-book-lightbox-frame{position:relative;display:flex;align-items:center;justify-content:center}.inside-book-lightbox-image{display:block;max-width:94vw;max-height:88vh;width:auto;height:auto;object-fit:contain;border-radius:16px;box-shadow:0 18px 65px rgba(0,0,0,.42)}.inside-book-lightbox button{position:absolute;z-index:1;width:46px;height:46px;border:0;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.95);color:var(--bark,#4A2E1A);font:800 1.45rem/1 var(--sans,system-ui,sans-serif);cursor:pointer}.inside-book-lightbox-close{top:12px;right:12px}.inside-book-lightbox-prev{left:12px;top:50%;transform:translateY(-50%)}.inside-book-lightbox-next{right:12px;top:50%;transform:translateY(-50%)}
@media(max-width:1100px){.inside-book-carousel{width:90%}.inside-book-arrow--prev{left:-20px}.inside-book-arrow--next{right:-20px}}@media(max-width:640px){.inside-book-carousel{width:calc(100% + var(--book-mobile-carousel-width,4rem));margin-left:calc(0px - var(--book-mobile-carousel-edge,2rem));margin-right:calc(0px - var(--book-mobile-carousel-edge,2rem))}.inside-book-viewport{min-height:0;border-radius:16px;perspective:850px}.inside-book-cover{block-size:calc(100% - 1.25rem);max-inline-size:calc(100% - 1.25rem)}.inside-book-arrow{display:none}.inside-book-dots{margin-top:.65rem}.inside-book-lightbox{inset:0;box-sizing:border-box;width:100dvw;max-width:100dvw;height:100dvh;max-height:100dvh;padding:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px);border-radius:0}.inside-book-lightbox-frame{height:100%}.inside-book-lightbox-image{max-width:100%;max-height:100%;border-radius:0}}
@media(prefers-reduced-motion:reduce){.inside-book-book,.inside-book-cover,.inside-book-spine,.inside-book-riffle,.inside-book-riffle i,.inside-book-dot::after{transition:none!important;animation:none!important}.inside-book-riffle{display:none}.inside-book-carousel[data-book-state="opening"] .inside-book-cover,.inside-book-carousel[data-book-state="closing"] .inside-book-cover{transform:none}}