:root{--navy-950:#030914;--navy-900:#07142c;--navy-800:#0a2044;--blue:#64d2ff;--orange:#ff8a3d;--white:#ffffff;--glass:rgba(255,255,255,.09);--glass-border:rgba(255,255,255,.20);--ease:cubic-bezier(.22,1,.36,1)}*,*::before,*::after{box-sizing:border-box}html,body{min-width:320px;min-height:100%}html{background:var(--navy-950)}body{margin:0;overflow:hidden;color:var(--white);background:radial-gradient(circle at 18% 20%,rgba(100,210,255,.12),transparent 28%),radial-gradient(circle at 84% 78%,rgba(255,138,61,.09),transparent 24%),linear-gradient(145deg,var(--navy-800),var(--navy-950) 58%,#02050b);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,a{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.38}:focus-visible{outline:3px solid rgba(100,210,255,.78);outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:10px;left:10px;z-index:100;padding:10px 14px;border-radius:12px;color:#07142c;background:#fff;transform:translateY(-160%);transition:transform .2s ease}.skip-link:focus{transform:translateY(0)}.reader-shell{min-height:100dvh;display:grid;grid-template-rows:72px minmax(0,1fr)}.reader-header{position:relative;z-index:30;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;padding:10px clamp(16px,3vw,44px);border-bottom:1px solid rgba(255,255,255,.10);background:rgba(2,8,20,.50);box-shadow:0 12px 40px rgba(0,0,0,.18);backdrop-filter:blur(22px) saturate(160%);-webkit-backdrop-filter:blur(22px) saturate(160%)}.reader-brand{justify-self:start}.reader-brand img{width:auto;height:46px;object-fit:contain}.reader-heading{display:flex;align-items:baseline;gap:10px;white-space:nowrap}.reader-heading strong{font-size:15px;letter-spacing:.01em}.reader-heading span{color:rgba(255,255,255,.54);font-size:12px}.reader-main{min-height:0;display:grid;grid-template-rows:minmax(0,1fr) auto auto;gap:12px;padding:18px clamp(12px,2.4vw,36px) max(12px,env(safe-area-inset-bottom))}.viewer{position:relative;min-height:0;display:grid;grid-template-columns:54px minmax(0,1fr) 54px;align-items:center;gap:clamp(8px,1.5vw,22px)}.book-stage{min-width:0;min-height:0;height:100%;display:grid;place-items:center;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin}.book{--zoom:1;position:relative;width:min(100%,calc((100dvh - 190px) * 1.7779));aspect-ratio:1672 / 941;flex:0 0 auto;perspective:2200px;transform:scale(var(--zoom));transform-origin:center;transition:transform .28s var(--ease)}.page-image{position:absolute;inset:0;width:100%;height:100%;display:block;border-radius:4px;background:#fff;box-shadow:0 28px 80px rgba(0,0,0,.48),0 0 0 1px rgba(255,255,255,.12);object-fit:contain;user-select:none;-webkit-user-drag:none;backface-visibility:hidden;transform-style:preserve-3d}.book[data-protected-viewer] .page-image{pointer-events:none}.page-image--current{z-index:2}.page-image--next{z-index:1;visibility:hidden}.page-glass{position:absolute;inset:0;z-index:5;border-radius:4px;background:linear-gradient(112deg,rgba(255,255,255,.13),transparent 18%,transparent 78%,rgba(255,255,255,.06));box-shadow:inset 0 0 0 1px rgba(255,255,255,.11);pointer-events:none}.book.is-turning-forward .page-image--current{transform-origin:left center;animation:turn-out-forward .66s var(--ease) both}.book.is-turning-forward .page-image--next,.book.is-turning-backward .page-image--next{visibility:visible}.book.is-turning-forward .page-image--next{animation:reveal-forward .66s var(--ease) both}.book.is-turning-backward .page-image--current{transform-origin:right center;animation:turn-out-backward .66s var(--ease) both}.book.is-turning-backward .page-image--next{animation:reveal-backward .66s var(--ease) both}@keyframes turn-out-forward{0%{transform:rotateY(0);filter:brightness(1)}48%{filter:brightness(.72);box-shadow:-22px 26px 70px rgba(0,0,0,.54)}100%{transform:rotateY(-92deg);filter:brightness(.55)}}@keyframes reveal-forward{0%,28%{opacity:.58;transform:translateX(1.5%) scale(.992);filter:brightness(.72)}100%{opacity:1;transform:none;filter:none}}@keyframes turn-out-backward{0%{transform:rotateY(0);filter:brightness(1)}48%{filter:brightness(.72);box-shadow:22px 26px 70px rgba(0,0,0,.54)}100%{transform:rotateY(92deg);filter:brightness(.55)}}@keyframes reveal-backward{0%,28%{opacity:.58;transform:translateX(-1.5%) scale(.992);filter:brightness(.72)}100%{opacity:1;transform:none;filter:none}}.edge-control{width:48px;height:72px;display:grid;place-items:center;border:1px solid var(--glass-border);border-radius:999px;color:var(--white);background:var(--glass);box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 14px 38px rgba(0,0,0,.22);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);font-size:34px;transition:transform .2s var(--ease),background .2s ease,border-color .2s ease}.edge-control:hover:not(:disabled){border-color:rgba(100,210,255,.42);background:rgba(255,255,255,.15);transform:scale(1.04)}.reader-controls{justify-self:center;min-height:54px;display:flex;align-items:center;gap:9px;padding:7px;border:1px solid var(--glass-border);border-radius:999px;background:rgba(255,255,255,.075);box-shadow:inset 0 1px 0 rgba(255,255,255,.22),0 18px 48px rgba(0,0,0,.24);backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%)}.glass-button{min-height:40px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 14px;border:1px solid rgba(255,255,255,.13);border-radius:999px;color:rgba(255,255,255,.86);background:rgba(255,255,255,.07);font-size:13px;font-weight:650;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s var(--ease)}.glass-button:hover:not(:disabled){color:var(--white);border-color:rgba(255,255,255,.27);background:rgba(255,255,255,.14);transform:translateY(-1px)}.header-button{justify-self:end;width:42px;padding:0;font-size:18px}.icon-button{width:36px;min-height:36px;padding:0;font-size:19px}.page-position{min-width:48px;display:flex;justify-content:center;gap:4px;color:rgba(255,255,255,.46);font-size:12px}.page-position strong{color:var(--white)}.page-dots{display:flex;align-items:center;gap:5px}.page-dot{width:7px;height:7px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.28);transition:width .2s ease,background .2s ease}.page-dot[aria-current="page"]{width:20px;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--orange))}.zoom-controls{display:flex;align-items:center;gap:4px}.zoom-level{min-width:42px;color:rgba(255,255,255,.62);font-size:11px;text-align:center}.reader-hint{margin:0;color:rgba(255,255,255,.44);font-size:11px;text-align:center}.loading-screen{position:fixed;inset:0;z-index:90;display:grid;place-content:center;justify-items:center;gap:9px;color:var(--white);background:radial-gradient(circle at center,#0d2e62,var(--navy-950) 62%);transition:opacity .34s ease,visibility .34s ease}.loading-screen.is-hidden{visibility:hidden;opacity:0;pointer-events:none}.loading-screen strong{font-size:17px}.loading-screen span{color:rgba(255,255,255,.58);font-size:13px}.loading-mark{width:42px;height:42px;margin-bottom:8px;border:2px solid rgba(255,255,255,.14);border-top-color:var(--blue);border-right-color:var(--orange);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.noscript-profile{position:fixed;inset:0;z-index:100;overflow:auto;padding:24px;color:#111;background:#fff;text-align:center}.noscript-profile img{max-width:100%;height:auto}@media (orientation:portrait){.book{width:min(100%,calc((100dvh - 214px) * .686));aspect-ratio:1024 / 1491}.viewer{grid-template-columns:36px minmax(0,1fr) 36px;gap:5px}.edge-control{width:34px;height:58px;font-size:28px}}@media (max-width:700px){.reader-shell{grid-template-rows:60px minmax(0,1fr)}.reader-header{grid-template-columns:1fr auto auto;gap:10px;padding:8px 12px}.reader-brand img{height:38px}.reader-heading{display:block;text-align:right}.reader-heading strong{display:block;font-size:12px}.reader-heading span{display:block;margin-top:1px;font-size:10px}.reader-main{gap:8px;padding:10px 7px max(8px,env(safe-area-inset-bottom))}.reader-controls{max-width:100%;gap:5px;padding:5px}.glass-button{min-height:36px;padding:6px 10px}.control-label,.page-dots,.zoom-level{display:none}.zoom-controls{gap:3px}.page-position{min-width:40px}.reader-hint{font-size:10px}}@media (max-width:390px){.reader-heading span{display:none}.header-button{width:36px}.viewer{grid-template-columns:28px minmax(0,1fr) 28px}.edge-control{width:28px;height:52px}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto !important;animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}}