.credentials-container{--blue:#2187c9;--bright:#62c5ff;--line:#203348;--gold:#ffc61a;--bg-deep:#07111d;background:var(--bg-deep);color:#eaf4fc;min-height:100vh;font-family:var(--font-inter), -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;position:relative;overflow-x:hidden}.book-space{perspective:2300px;touch-action:pan-y;width:100%;min-width:0}.book{aspect-ratio:16/9;width:100%;transform-style:preserve-3d;background:#fff;border-radius:4px;transition:transform .3s;position:relative;box-shadow:0 2px #b1c4cf,0 4px #283643,0 6px #a0b2c0,0 8px #263442,0 10px #48708c,0 30px 65px #000000b3}.book-page-img{object-fit:contain;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;border-radius:4px;width:100%;height:100%;display:block}.leaf{transform-origin:0;transform-style:preserve-3d;z-index:5;pointer-events:none;position:absolute;inset:0}.leaf-front,.leaf-back{backface-visibility:hidden;border-radius:4px;width:100%;height:100%;position:absolute;inset:0}.leaf-front{object-fit:contain;background:#fff}.leaf-back{background:linear-gradient(90deg,#d4e0e9,#f8fbfd 35%,#c2d0dd);transform:rotateY(180deg)}.binding-spine{pointer-events:none;z-index:6;background:linear-gradient(90deg,#00000059,#0000);width:16px;position:absolute;inset:0 auto 0 0}.reader-ambient-glow{pointer-events:none;background:radial-gradient(#1266a038,#0000 70%);position:absolute;inset:-15% 0}.zoom-scroll-area{justify-content:center;align-items:flex-start;height:calc(100% - 65px);padding:20px;display:flex;overflow:auto}.zoom-scroll-area.enlarged img{width:200%;max-width:none}@keyframes pinShake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px)}40%,80%{transform:translate(8px)}}.pin-shake{animation:.4s ease-in-out pinShake}