.book-cover-3d[data-astro-cid-ql5t5gov]{transform:perspective(1400px) rotateY(-12deg);transition:transform .5s ease;filter:drop-shadow(-14px 18px 22px rgba(20,30,50,.28))}.book-cover-3d[data-astro-cid-ql5t5gov]:hover{transform:perspective(1400px) rotateY(-4deg)}.flipbook[data-astro-cid-ql5t5gov]{max-width:1000px;margin:0 auto}.book-stage[data-astro-cid-ql5t5gov]{position:relative;width:100%;perspective:2400px;background:radial-gradient(120% 80% at 50% 100%,rgba(30,41,59,.08),transparent 60%)}.spine[data-astro-cid-ql5t5gov]{position:absolute;top:0;bottom:0;left:50%;width:2px;transform:translate(-50%);background:linear-gradient(to bottom,transparent,rgba(0,0,0,.06),transparent);pointer-events:none}.leaf[data-astro-cid-ql5t5gov]{position:absolute;will-change:transform}.leaf[data-astro-cid-ql5t5gov] img[data-astro-cid-ql5t5gov]{display:block;width:100%;height:100%;border-radius:6px;background:#fff;user-select:none;-webkit-user-drag:none}.leaf-under[data-astro-cid-ql5t5gov]{z-index:1}.leaf-under[data-astro-cid-ql5t5gov] img[data-astro-cid-ql5t5gov]{box-shadow:0 12px 34px #141e322e}.leaf-over[data-astro-cid-ql5t5gov]{z-index:2;transform-origin:left center;transform-style:preserve-3d;cursor:zoom-in}.leaf-over[data-astro-cid-ql5t5gov].turning{transition:transform .7s cubic-bezier(.2,.62,.25,1)}.leaf-face[data-astro-cid-ql5t5gov]{position:absolute;inset:0;backface-visibility:hidden}.leaf-front[data-astro-cid-ql5t5gov]{box-shadow:0 12px 34px #141e322e}.leaf-back[data-astro-cid-ql5t5gov]{transform:rotateY(180deg);opacity:.45}.leaf[data-astro-cid-ql5t5gov] .sheen[data-astro-cid-ql5t5gov]{position:absolute;inset:0;border-radius:6px;background:linear-gradient(to right,#00000029,#0000 38%);opacity:0;pointer-events:none;transition:opacity .7s ease;backface-visibility:hidden}.leaf-over[data-astro-cid-ql5t5gov].turning .sheen[data-astro-cid-ql5t5gov]{opacity:1}.nav-btn[data-astro-cid-ql5t5gov]{display:inline-flex;align-items:center;justify-content:center;height:2.6rem;width:2.6rem;border-radius:9999px;border:1px solid var(--color-border);background:var(--color-card);color:var(--color-primary);transition:background .15s ease,opacity .15s ease}.nav-btn[data-astro-cid-ql5t5gov]:hover{background:var(--color-secondary)}.nav-btn[data-astro-cid-ql5t5gov]:disabled{opacity:.35;cursor:default}.thumbs[data-astro-cid-ql5t5gov]{display:flex;gap:.5rem;overflow-x:auto;padding:1rem .25rem;margin-top:1rem;scroll-behavior:smooth}.thumb[data-astro-cid-ql5t5gov]{position:relative;flex:0 0 auto;width:54px;border-radius:5px;overflow:hidden;border:2px solid transparent;background:#fff;opacity:.7;transition:opacity .15s ease,border-color .15s ease}.thumb[data-astro-cid-ql5t5gov] img[data-astro-cid-ql5t5gov]{display:block;width:100%;height:auto}.thumb[data-astro-cid-ql5t5gov] span[data-astro-cid-ql5t5gov]{position:absolute;bottom:0;left:0;right:0;font-size:9px;line-height:1.4;text-align:center;background:#0000008c;color:#fff}.thumb[data-astro-cid-ql5t5gov]:hover{opacity:1}.thumb[data-astro-cid-ql5t5gov].active{opacity:1;border-color:var(--color-accent)}.lightbox[data-astro-cid-ql5t5gov]{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;background:#0f172aeb;padding:2.5rem 1rem}.lightbox[data-astro-cid-ql5t5gov][hidden]{display:none}.lightbox[data-astro-cid-ql5t5gov] img[data-astro-cid-ql5t5gov]{max-width:100%;max-height:100%;border-radius:6px;background:#fff}.lb-close[data-astro-cid-ql5t5gov]{position:absolute;top:1rem;right:1.25rem;font-size:2rem;line-height:1;color:#fff;background:none;border:none;cursor:pointer}.lb-nav[data-astro-cid-ql5t5gov]{position:absolute;top:50%;transform:translateY(-50%);font-size:2rem;color:#fff;background:#ffffff14;border:none;height:3rem;width:3rem;border-radius:9999px;cursor:pointer}.lb-nav[data-astro-cid-ql5t5gov]:hover{background:#ffffff2e}.lb-prev[data-astro-cid-ql5t5gov]{left:1rem}.lb-next[data-astro-cid-ql5t5gov]{right:1rem}.lb-caption[data-astro-cid-ql5t5gov]{position:absolute;bottom:1rem;left:0;right:0;text-align:center;color:#fff;font-size:.875rem}@media(prefers-reduced-motion:reduce){.leaf-over[data-astro-cid-ql5t5gov].turning{transition:none}.book-cover-3d[data-astro-cid-ql5t5gov]{transform:none}}