/* Local real-book pilot: keep rights-permitted scan previews legible and bounded. */
.preview-pages{display:flex;gap:14px;min-width:0;max-width:100%;overflow-x:auto;overflow-y:hidden;padding:4px 0 14px;align-items:flex-start}
.preview-page{flex:0 0 min(220px,32vw);margin:0}
.preview-page img{display:block;width:100%;height:auto;max-height:340px;object-fit:contain;object-position:top;background:#e5dfd0}
.preview-page figcaption{margin-top:8px;color:#c7d0c6;font:11px var(--mono)}
@media(max-width:600px){.preview-pages{margin-top:32px}.preview-page{flex-basis:min(220px,72vw)}.preview-page img{max-height:300px}}

/* Rights-gated, full-resolution page viewer for the real-book pilot. */
.preview-page-open{position:relative;display:block;width:100%;padding:0;border:0;background:transparent;cursor:zoom-in;text-align:inherit}
.preview-page-open img{transition:filter .18s ease}
.preview-page-action{position:absolute;right:8px;bottom:8px;padding:7px 10px;border:1px solid rgba(255,255,255,.48);border-radius:999px;background:rgba(16,38,76,.9);color:#fff;font:600 12px/1.2 var(--sans);opacity:0;transform:translateY(3px);transition:opacity .18s ease,transform .18s ease}
.preview-page-open:hover .preview-page-action,.preview-page-open:focus-visible .preview-page-action{opacity:1;transform:translateY(0)}
.preview-page-open:focus-visible,.reader-tools button:focus-visible,.reader-stage button:focus-visible{outline:3px solid #55cdbA;outline-offset:3px}
.book-reader-dialog{width:min(1440px,calc(100vw - 32px));height:min(940px,calc(100dvh - 32px));max-width:none;max-height:none;padding:0;overflow:hidden;border:1px solid rgba(255,255,255,.5);border-radius:20px;background:#f7f5ef;color:#10264c;box-shadow:0 28px 100px rgba(5,18,42,.35)}
.book-reader-dialog::backdrop{background:rgba(8,20,42,.82);backdrop-filter:blur(7px)}
.reader-panel{display:grid;width:100%;height:100%;grid-template-rows:auto minmax(0,1fr) auto}
.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 26px;background:#fbfaf7;border-bottom:1px solid rgba(16,38,76,.1)}
.reader-heading{min-width:0}.reader-kicker{margin:0 0 5px;color:#557094;font:600 10px/1.2 var(--mono);letter-spacing:.13em}.reader-heading h2{margin:0;color:#10264c;font:600 clamp(18px,2vw,25px)/1.2 var(--sans)}.reader-page-count{margin:5px 0 0;color:#617087;font:13px/1.3 var(--sans)}
.reader-tools{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex:0 0 auto}.reader-tools button,.reader-stage button{display:grid;place-items:center;min-width:42px;min-height:42px;border:1px solid #d7deea;border-radius:50%;background:#fff;color:#10264c;font:500 21px/1 var(--sans);cursor:pointer;box-shadow:0 3px 12px rgba(12,35,69,.08);transition:background .16s ease,transform .16s ease}.reader-tools button:hover:not(:disabled),.reader-stage button:hover:not(:disabled){background:#edf5fa;transform:translateY(-1px)}.reader-tools button:disabled,.reader-stage button:disabled{opacity:.38;cursor:not-allowed;box-shadow:none}.reader-tools .reader-zoom-reset{min-width:64px;padding:0 12px;border-radius:999px;font:600 12px/1 var(--sans)}.reader-tools .reader-close{margin-left:6px;background:#10264c;color:#fff;border-color:#10264c;font-size:27px}.reader-zoom-value{min-width:52px;text-align:center;color:#324a6b;font:600 12px/1 var(--sans);font-variant-numeric:tabular-nums}
.reader-stage{position:relative;min-height:0;overflow:hidden;background:radial-gradient(ellipse at center,#263b57 0%,#172b47 52%,#0d1e36 100%)}.reader-page-viewport{position:absolute;inset:0;display:grid;place-items:center;overflow:hidden;touch-action:none;user-select:none;cursor:default;outline:none}.reader-page-viewport.reader-can-pan{cursor:grab}.reader-page-viewport.reader-can-pan:active{cursor:grabbing}.reader-page-image{display:block;width:auto;height:auto;max-width:calc(100% - 116px);max-height:calc(100% - 34px);object-fit:contain;object-position:center;transform:translate3d(var(--reader-pan-x,0px),var(--reader-pan-y,0px),0) scale(var(--reader-zoom,1));transform-origin:center center;will-change:transform;pointer-events:none;user-select:none;-webkit-user-drag:none;box-shadow:0 15px 55px rgba(0,0,0,.32);background:#fff}
.reader-stage .reader-page-previous,.reader-stage .reader-page-next{position:absolute;z-index:2;top:50%;width:48px;height:48px;transform:translateY(-50%);font-size:22px}.reader-stage .reader-page-previous:hover:not(:disabled),.reader-stage .reader-page-next:hover:not(:disabled){transform:translateY(calc(-50% - 1px))}.reader-stage .reader-page-previous{left:18px}.reader-stage .reader-page-next{right:18px}
.reader-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 24px;background:#fbfaf7;border-top:1px solid rgba(16,38,76,.1);color:#617087;font:12px/1.4 var(--sans)}.reader-footer>span:first-child{color:#2d5374;font-weight:600}.reader-key-hint{font-variant-numeric:tabular-nums}.reader-resolution-note{text-align:right}
@media(max-width:760px){.book-reader-dialog{width:100vw;height:100dvh;margin:0;border:0;border-radius:0}.reader-toolbar{align-items:flex-start;gap:12px;padding:14px 14px 12px}.reader-tools{gap:5px}.reader-tools button{min-width:38px;min-height:38px}.reader-tools .reader-zoom-reset{min-width:54px;padding:0 9px}.reader-tools .reader-close{margin-left:0}.reader-zoom-value{min-width:42px;font-size:11px}.reader-heading h2{max-width:38vw;font-size:18px}.reader-kicker{font-size:9px}.reader-page-image{max-width:calc(100% - 76px);max-height:calc(100% - 28px)}.reader-stage .reader-page-previous,.reader-stage .reader-page-next{width:40px;height:40px;background:rgba(255,255,255,.94)}.reader-stage .reader-page-previous{left:8px}.reader-stage .reader-page-next{right:8px}.reader-footer{flex-wrap:wrap;justify-content:center;padding:10px 12px}.reader-key-hint{display:none}.reader-resolution-note{text-align:center}}
@media(max-width:420px){.reader-toolbar{flex-wrap:wrap}.reader-heading{width:100%;display:flex;align-items:center;gap:8px}.reader-kicker{margin:0}.reader-heading h2{max-width:none;font-size:16px}.reader-page-count{margin:0 0 0 auto}.reader-tools{width:100%;justify-content:center}.reader-stage{min-height:0}.reader-page-image{max-width:calc(100% - 68px)}}
@media(prefers-reduced-motion:reduce){.preview-page-action,.preview-page-open img,.reader-tools button,.reader-stage button{transition:none}}