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center}.binder-spread--flip-in-back{animation:spreadFlipIn .18s ease-out forwards;transform-origin:right center}.binder-cover{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:8px;overflow:hidden;border:2px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:center}.binder-cover__img{width:100%;height:100%;object-fit:contain;display:block}.binder-cover__title{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:1rem;text-align:center;height:100%;background:linear-gradient(135deg,var(--surface) 0%,var(--surface-2) 100%)}.binder-cover__name{font-size:clamp(1rem,3vw,1.5rem);font-weight:800;color:var(--accent);letter-spacing:.02em;word-break:break-word}.binder-cover__sub{font-size:.75rem;color:var(--text-dim)}@media(max-width:600px){.binder-spread{flex-direction:column;align-items:center}.binder-spread__spine{width:100%;height:10px;background:linear-gradient(to bottom,#0a0a14 0%,var(--surface-3) 30%,var(--surface-2) 50%,var(--surface-3) 70%,#0a0a14 100%)}.binder-spread__page--left .binder-page-grid,.binder-spread__page--right .binder-page-grid{border-radius:8px;border:2px solid var(--border)}.binder-spread__page--left .binder-page-grid{border-bottom-left-radius:0;border-bottom-right-radius:0;border-bottom:none}.binder-spread__page--right .binder-page-grid{border-top-left-radius:0;border-top-right-radius:0;border-top:none}}