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45%, var(--c-border))}@keyframes book-float{0%,to{transform:translateY(0)rotate(-9deg)}50%{transform:translateY(-9px)rotate(-6deg)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.book-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:24px;margin:24px 0;display:grid}.book-card{border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface);box-shadow:var(--c-shadow);transition:transform .2s,box-shadow .2s;overflow:hidden}.book-card:hover{box-shadow:var(--c-shadow-lg);transform:translateY(-5px)}.book-cover{background:linear-gradient(145deg, var(--accent-soft), var(--c-surface));border-inline-start:12px solid var(--accent);min-height:260px;color:var(--accent);flex-direction:column;align-items:flex-start;gap:20px;padding:26px 32px;display:flex;position:relative}.book-cover:after{content:"";border:1px solid var(--accent);opacity:.18;pointer-events:none;border-radius:4px;position:absolute;inset:14px}.book-cover>span{font-family:var(--font-science);letter-spacing:.07em;font-size:12px}.book-cover strong{align-self:stretch;font-size:21px;line-height:1.6}.book-cover small{margin-top:auto}.book-card-body{flex-direction:column;gap:12px;padding:22px;display:flex}.book-card-body h2{margin:0;font-size:18px}.book-card-body p{color:var(--c-text-muted);margin:0;font-size:13px}.book-management{margin-bottom:24px}.book-management>.text-link{font-weight:700}.book-management input[type=number]{max-width:105px}.book-reader{max-width:1100px;margin:auto}.book-toolbar{flex-direction:column;gap:20px;margin-bottom:18px;display:flex}.book-toolbar h1{margin:6px 0;font-size:24px}.book-toolbar small,.book-notes-panel>small{color:var(--c-text-muted);font-size:12px;display:block}.book-toolbar progress{width:100%;height:5px;accent-color:var(--c-primary);margin:12px 0 8px;display:block}.book-page-picker{flex-direction:row;align-items:center;gap:8px;display:flex}.book-page-picker input{text-align:center;direction:ltr;width:78px;min-height:40px}.book-page-grid{grid-template-columns:54px minmax(0,1fr) 54px;align-items:start;gap:10px;margin-top:18px;display:grid}.book-nav{border:1px solid var(--c-border);background:var(--c-surface);min-height:86px;color:var(--c-primary);cursor:pointer;border-radius:12px;flex-direction:column;align-items:center;gap:10px;padding:16px 4px;font-size:12px;display:flex;position:sticky;top:86px}.book-nav:disabled{opacity:.35;cursor:default}.book-nav:hover:enabled{background:var(--c-primary-light)}.book-page-stage{touch-action:pan-x pan-y pinch-zoom;background:var(--c-surface-muted);min-width:0;box-shadow:var(--c-shadow-lg);border-radius:10px;overflow:auto}.book-page-host{width:100%;min-width:0}.book-paper{background:var(--c-paper);color:var(--c-ink);isolation:isolate;display:table;position:relative}.book-paper canvas{max-width:none;display:block}.book-paper .watermark-image{pointer-events:none;color:var(--c-ink)}.book-page-stamp{color:var(--c-ink);font:10px var(--font-science);opacity:.45;pointer-events:none;position:absolute;bottom:5px;right:9px}.book-markers{margin:18px 0}.book-markers .selected{color:var(--c-primary);background:var(--c-primary-light);border-color:var(--c-primary-border)}.book-note-reminder{text-align:start;cursor:pointer;width:100%;margin-bottom:16px}.book-note-index{margin-bottom:16px}.book-notes-panel{margin-top:24px}.book-note-editor{box-shadow:none;background:0 0;border:0;margin:18px 0;padding:0}.book-note-editor textarea{resize:vertical;width:100%}.book-note-editor .row{margin-top:14px}.book-fullscreen{z-index:1000;background:var(--c-bg);max-width:none;margin:0;padding:20px;position:fixed;inset:0;overflow:auto}.book-fullscreen .book-page-grid{max-width:1050px;margin-inline:auto}@media (width<=600px){.book-toolbar{padding:16px}.book-toolbar h1{font-size:18px}.book-page-grid{grid-template-columns:1fr 1fr;gap:10px}.book-page-stage{grid-area:2/1/auto/-1}.book-nav{flex-direction:row;justify-content:center;min-height:42px;padding:8px;position:static}.book-page-grid>.book-nav:last-child{grid-area:1/2}.book-fullscreen{padding:10px}.book-toolbar .row{gap:8px}}@media (prefers-reduced-motion:reduce){.book-card{transition:none}.book-card:hover{transform:none}}.reader-intro{padding:4px 4px 24px}.reader-intro h1{margin:10px 0 18px;font-size:clamp(21px,3vw,30px)}.reader-progress{color:var(--c-text-muted);flex-wrap:wrap;align-items:center;gap:12px;display:flex}.reader-progress progress{width:min(250px,50%);height:5px;accent-color:var(--c-primary)}.reader-surface{background:var(--c-surface);border:1px solid var(--c-border);box-shadow:var(--c-shadow-lg);border-radius:24px;padding:16px}.reader-controls{border-bottom:1px solid var(--c-border);flex-wrap:wrap;align-items:center;gap:14px;padding:0 0 16px;display:flex}.reader-controls 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