:root{--lumina-surface:#fbf9f4;--lumina-surface-dim:#dbdad5;--lumina-surface-container-lowest:#fff;--lumina-surface-container-low:#f5f3ee;--lumina-surface-container:#f0eee9;--lumina-surface-container-high:#eae8e3;--lumina-surface-container-highest:#e4e2dd;--lumina-on-surface:#1b1c19;--lumina-on-surface-variant:#434749;--lumina-outline:#747879;--lumina-outline-variant:#c3c7c8;--lumina-primary:#181f21;--lumina-primary-container:#2d3436;--lumina-on-primary-container:#959c9f;--lumina-secondary:#556064;--lumina-secondary-container:#d6e2e6;--lumina-on-secondary-container:#596468;--lumina-tertiary:#261b17;--lumina-tertiary-container:#3c302b;--lumina-on-tertiary-container:#a99790;--lumina-error:#ba1a1a;--lumina-on-error:#fff;--lumina-error-container:#ffdad6;--lumina-on-error-container:#93000a;--lumina-tertiary-fixed:#f3ded7;--lumina-tertiary-fixed-dim:#d6c3bb;--lumina-on-tertiary-fixed:#241915;--lumina-on-tertiary-fixed-variant:#51443f;--lumina-inverse-surface:#30312e;--lumina-inverse-on-surface:#f2f1ec;--lumina-paper-bg:#fbf9f4;--lumina-sepia-bg:#f4ecd8;--lumina-sepia-text:#433422;--lumina-charcoal-bg:#1a1a1b;--lumina-charcoal-surface:#2d2d2e;--lumina-charcoal-text:#e1e1e1;--lumina-accent-focus:#0061ff;--navy-950:#1b1c19;--navy-900:#30312e;--navy-800:#434749;--navy-700:#747879;--sage-700:#181f21;--sage-600:#2d3436;--sage-500:#556064;--sage-100:#d6e2e6;--ivory-50:#fff;--ivory-75:#fbf9f4;--ivory-100:#f0eee9;--line:#c3c7c8;--line-strong:#747879;--terracotta:#3c302b;--terracotta-dark:#261b17;--white:#fff;--reader-font-serif:Literata, "Source Serif 4", Georgia, "Times New Roman", serif;--reader-font-ui:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--radius-sm:.85rem;--radius-md:1.15rem;--radius-lg:1.55rem;--radius-xl:2rem;--shadow:0 24px 70px #25302d1a;--shadow-soft:0 16px 44px #25302d12;--lightningcss-light:initial;--lightningcss-dark: ;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--app-background:var(--lumina-paper-bg);--app-background-translucent:#fbf9f4e6;--app-background-fade:#fbf9f4e0;--app-body-background:radial-gradient(circle at 12% 8%, #e3dcd061, transparent 28rem), var(--app-background);--app-library-background:radial-gradient(circle at 10% 0, #c1c8ca2e, transparent 30rem), linear-gradient(180deg, #f8f6f1 0%, #fbf9f4 34%, #f1ece3 100%);--app-surface:var(--lumina-surface-container-lowest);--app-surface-muted:var(--lumina-surface-container);--app-surface-hover:var(--lumina-surface-container-high);--app-text:var(--lumina-on-surface);--app-text-muted:var(--lumina-on-surface-variant);--app-text-subtle:var(--lumina-outline);--app-border:var(--lumina-outline-variant);--app-border-strong:var(--lumina-outline);--app-accent:var(--lumina-primary);--app-accent-hover:var(--lumina-primary-container);--app-on-accent:var(--white);--app-active:var(--lumina-surface-container-highest);--app-active-border:var(--lumina-outline);--app-focus-ring:#0061ff61;--app-header-background:#fffffff0;--app-header-control-background:#ffffffad;--app-hero-background:#ffffff94;--app-panel-background:#ffffffc7;--app-storage-background:#ffffffb8;--app-message-background:#ffffff94;--app-footer-background:#ffffffd1;--app-header-shadow:var(--shadow-soft);--app-hero-shadow:var(--shadow-soft);--app-panel-shadow:var(--shadow);--app-card-shadow:0 18px 44px #1b1c1914;--app-card-hover-shadow:var(--shadow);--app-action-shadow:0 10px 25px #1b1c1924;--app-action-hover-shadow:0 13px 30px #1b1c192e;--app-control-shadow:0 10px 28px #25302d14;--app-overlay-shadow:0 18px 45px #1b1c191f;--app-book-cover-background:linear-gradient(145deg, #f8f6f1, #eae8e3);--app-book-cover-epub-background:linear-gradient(145deg, #f7f2e9, #e4e2dd);--app-book-cover-pdf-background:linear-gradient(145deg, #fff9e9, #f0eee9);--app-book-decoration:#1b1c1924;--app-book-pdf-decoration:#3c302b2e;--app-progress-track:var(--lumina-surface-container-highest);--app-progress-fill:linear-gradient(90deg, var(--lumina-primary), var(--lumina-secondary));--app-danger-text:var(--lumina-on-tertiary-fixed-variant);--app-danger-hover:var(--lumina-tertiary-fixed);--app-success-border:var(--app-border);--app-success-background:var(--lumina-surface-container-low);--app-error-border:var(--lumina-error-container);--app-error-text:var(--lumina-on-error-container);--app-error-background:var(--lumina-error-container)}:root[data-app-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--app-background:var(--lumina-charcoal-bg);--app-background-translucent:#1a1a1be6;--app-background-fade:#1a1a1be0;--app-body-background:radial-gradient(circle at 12% 8%, #c1c8ca1f, transparent 28rem), var(--app-background);--app-library-background:radial-gradient(circle at 10% 0, #c1c8ca14, transparent 32rem), linear-gradient(180deg, #1a1a1b 0%, #1f2021 48%, #1a1a1b 100%);--app-surface:var(--lumina-charcoal-surface);--app-surface-muted:var(--lumina-inverse-surface);--app-surface-hover:#ffffff14;--app-text:var(--lumina-inverse-on-surface);--app-text-muted:#f2f1ecb8;--app-text-subtle:#f2f1ec99;--app-border:#e1e1e129;--app-border-strong:#e1e1e13d;--app-accent:#dde4e6;--app-accent-hover:#cbd2d4;--app-on-accent:#161d1f;--app-active:#ffffff14;--app-active-border:#ffffff38;--app-header-background:#2d2d2ef0;--app-header-control-background:#ffffff14;--app-hero-background:#2d2d2ef5;--app-panel-background:#2d2d2ef5;--app-storage-background:#2d2d2ef5;--app-message-background:#2d2d2eb8;--app-footer-background:#2d2d2ef0;--app-header-shadow:0 24px 70px #0000003d;--app-hero-shadow:0 28px 90px #00000047;--app-panel-shadow:none;--app-card-shadow:none;--app-card-hover-shadow:none;--app-action-shadow:none;--app-action-hover-shadow:none;--app-control-shadow:0 10px 28px #0003;--app-overlay-shadow:0 18px 45px #0000003d;--app-book-cover-background:linear-gradient(145deg, #1a1a1b, #2d2d2e);--app-book-cover-epub-background:linear-gradient(145deg, #1f2021, #30312e);--app-book-cover-pdf-background:linear-gradient(145deg, #2d2d2e, #3c302b);--app-book-decoration:#f2f1ec24;--app-book-pdf-decoration:#f3ded72e;--app-progress-track:#e1e1e124;--app-progress-fill:var(--app-accent);--app-danger-text:var(--lumina-tertiary-fixed);--app-danger-hover:var(--lumina-tertiary-container);--app-success-border:#e1e1e11f;--app-success-background:#2d2d2ed1;--app-error-border:var(--lumina-error);--app-error-text:#ffdad6;--app-error-background:#3a2523f0}*{box-sizing:border-box}:root{color:var(--app-text);background:var(--app-background);font-family:var(--reader-font-ui);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-width:320px;min-height:100vh;color:var(--app-text);background:var(--app-body-background);margin:0}button,input{font:inherit}button,a,label{-webkit-tap-highlight-color:transparent}a{color:inherit}svg{stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round;width:1.5rem;height:1.5rem}.eyebrow{color:var(--app-text-muted);letter-spacing:.13em;text-transform:uppercase;margin:0 0 .6rem;font-size:.78rem;font-weight:800}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.visually-hidden:focus+*{outline:3px solid var(--app-accent);outline-offset:3px}.skip-link{z-index:100;border:2px solid var(--app-accent);color:var(--app-text);background:var(--app-surface);box-shadow:var(--app-panel-shadow);border-radius:.55rem;padding:.75rem 1rem;font-weight:800;text-decoration:none;transition:transform .12s;position:fixed;top:.75rem;left:.75rem;transform:translateY(calc(-100% - 1.5rem))}.skip-link:focus,.skip-link:focus-visible{outline:3px solid var(--lumina-accent-focus);outline-offset:3px;transform:translateY(0)}.book-open-link:focus-visible,.settings-link:focus-visible,.header-language-select:focus-visible,.remove-button:focus-visible,.import-button:has(+input:focus-visible),.pwa-status-banner button:focus-visible{outline:3px solid var(--app-accent);outline-offset:3px}.reader-back-link:focus-visible,.reader-open-link:focus-visible,.pdf-reader-chrome button:focus-visible,.pdf-reader-chrome select:focus-visible,.reader-toolbar-menu summary:focus-visible,.epub-reader-chrome button:focus-visible,.epub-reader-chrome select:focus-visible,.reader-edge-button:focus-visible{outline:3px solid var(--reader-ui-focus-ring,var(--app-focus-ring));outline-offset:3px}.app-header{border:1px solid var(--app-border);border-radius:var(--radius-lg);width:min(90vw,90rem);min-height:4.9rem;color:var(--app-text);background:var(--app-header-background);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--app-header-shadow);justify-content:space-between;align-items:center;margin:1rem auto 0;padding:.65rem .9rem .65rem 1rem;display:flex}.brand,.settings-link{align-items:center;gap:.75rem;text-decoration:none;display:inline-flex}.app-header-actions{align-items:center;gap:.65rem;display:inline-flex}.header-language-selector{align-items:center;display:inline-flex}.language-select option{color:var(--app-text);background-color:var(--app-surface)}.header-language-select{box-sizing:border-box;appearance:none;border:1px solid var(--app-border);width:9rem;height:2.75rem;color:var(--app-text);background-color:var(--app-surface);cursor:pointer;font:inherit;text-align:center;text-align-last:center;background-image:linear-gradient(45deg,#0000 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,#0000 50%);background-position:calc(100% - .85rem),calc(100% - .55rem);background-repeat:no-repeat;background-size:.3rem .3rem;border-radius:999px;padding:0 1.75rem 0 .75rem;font-size:.88rem;font-weight:700;line-height:1.2;transition:border-color .15s,background-color .15s,color .15s}.header-language-select:hover:not(:disabled){border-color:var(--app-border-strong);background-color:var(--app-surface-hover)}.header-language-select:disabled{cursor:wait;opacity:.65}.brand{letter-spacing:-.02em;font-family:Georgia,Times New Roman,serif;font-size:1.35rem;font-weight:700}.brand svg{width:2rem;height:2rem;color:var(--app-accent)}.settings-link{border:1px solid var(--app-border);background:var(--app-header-control-background);border-radius:999px;min-height:2.75rem;padding:0 1rem;font-weight:650}.settings-link:hover{color:var(--app-accent);background:var(--app-surface-hover)}@media (min-width:64rem){.app-header{border:0;border-bottom:1px solid var(--app-border);width:100%;min-height:4.55rem;box-shadow:none;border-radius:0;margin:0;padding:0 max(5vw,50vw - 45rem)}.brand{gap:1rem;font-size:1.75rem}.brand svg{width:2.5rem;height:2.5rem}.settings-link{background:0 0;border:0;border-radius:0;min-height:2.75rem;padding:0;font-size:1rem}.header-language-selector{align-items:center}.header-language-select{text-align:start;text-align-last:start;background-color:#0000;background-image:none;border:0;border-radius:0;width:8.5rem;padding:0 .25rem}.language-select option{background-color:var(--app-surface-muted)}.settings-link:hover{color:var(--app-accent);background:0 0}}.library-shell{background:var(--app-library-background);flex-direction:column;min-height:100dvh;display:flex}.library-main{flex:1 0 auto;width:min(90vw,90rem);margin:0 auto;padding:2.6rem 0 2rem}.library-hero{border:1px solid var(--app-border);border-radius:var(--radius-xl);background:var(--app-hero-background);box-shadow:var(--app-hero-shadow);grid-template-columns:minmax(0,1.25fr) minmax(19rem,.75fr);align-items:center;gap:clamp(2rem,6vw,6rem);padding:clamp(1.25rem,3vw,2rem);display:grid}.library-section{margin-top:3rem}.section-heading{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.4rem;display:flex}.section-heading h2{margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.8rem,3vw,2.4rem);font-weight:600}@media (min-width:64rem){.library-main{width:min(90vw,90rem);padding:3.2rem 0 3.5rem}.library-hero{grid-template-columns:minmax(0,1fr) 26.25rem;align-items:start;gap:5rem;min-height:18.875rem}.library-section{margin-top:3.4rem}.section-heading,.book-grid{max-width:79.25rem}.section-heading{margin-bottom:2rem}.book-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:1.25rem}}.reader-shell{min-height:100vh;color:var(--app-text);background:var(--app-body-background)}.reader-header{color:var(--lumina-inverse-on-surface);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#2d2d2ee0;border-bottom:1px solid #e1e1e11f;justify-content:space-between;align-items:center;gap:1rem;min-height:4.5rem;padding:1rem 5vw;display:flex}.reader-header .brand{color:var(--lumina-inverse-on-surface)}.reader-main{min-height:100vh}.reader-state{text-align:center;align-content:center;place-items:center;min-height:calc(100vh - 4.5rem);padding:2rem;display:grid}.reader-state h1{margin:1rem 0 .5rem;font-family:Georgia,Times New Roman,serif}.reader-state p{max-width:34rem;color:var(--app-text-muted);margin:0 0 1.25rem;line-height:1.55}.route-error-actions{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}.route-error-actions .reader-open-link{border:1px solid var(--app-accent);color:var(--app-accent);font:inherit;cursor:pointer;background:0 0;border-radius:.55rem;padding:.7rem 1rem;font-weight:700;text-decoration:none}.route-error-actions .reader-open-link:is(:hover,:focus-visible){color:var(--app-on-accent);background:var(--app-accent)}.import-button{border:1px solid var(--app-accent);min-width:12.5rem;min-height:3.5rem;color:var(--app-on-accent);background:var(--app-accent);box-shadow:var(--app-action-shadow);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:.75rem;padding:.85rem 1.35rem;font-weight:750;transition:transform .15s,box-shadow .15s;display:inline-flex}.import-button:hover{background:var(--app-accent-hover);box-shadow:var(--app-action-hover-shadow);transform:translateY(-1px)}.import-button.is-busy{cursor:wait;opacity:.75}.import-button-spinner{border-width:2px;border-color:currentColor #ffffff5c #ffffff5c;width:1.15rem;height:1.15rem}.remove-button{min-height:2.75rem;color:var(--app-danger-text);background:var(--app-surface-muted);cursor:pointer;border:1px solid #51443f5c;border-radius:999px;justify-content:center;align-items:center;gap:.45rem;font-weight:700;display:inline-flex}.remove-button:hover:not(:disabled){background:var(--app-danger-hover)}.remove-button:disabled{cursor:wait;opacity:.6}.remove-button svg{width:1.1rem;height:1.1rem;color:inherit;stroke:currentColor}.book-card .remove-button{border-color:var(--app-border-strong);color:var(--app-danger-text);background:var(--app-surface-muted)}.book-card .remove-button:hover:not(:disabled){background:var(--app-danger-hover)}@media (min-width:64rem){.import-button{border-radius:.625rem;min-width:13.75rem;font-size:1.125rem}}.feedback{border:1px solid #0000;border-radius:.65rem;min-height:2.75rem;margin:1.5rem 0 0;padding:.75rem 1rem}.feedback:empty{min-height:0;margin:0;padding:0}.feedback.success{border-color:var(--app-success-border);color:var(--app-text);background:var(--app-success-background)}.feedback.error{border-color:var(--app-error-border);color:var(--app-error-text);background:var(--app-error-background)}.feedback.loading{border-color:var(--app-success-border);color:var(--app-text);background:var(--app-success-background)}.feedback-inline{align-items:center;gap:.85rem;display:inline-flex}.feedback-spinner{border-width:2px;flex:none;width:1.15rem;height:1.15rem}.loading-mark{border:3px solid var(--app-surface-hover);border-top-color:var(--app-accent);border-radius:50%;width:3rem;height:3rem;animation:.8s linear infinite spin}.offline-status{border:1px solid color-mix(in srgb, var(--app-border-strong) 28%, transparent);min-height:1.75rem;color:var(--app-text-muted);background:color-mix(in srgb, var(--app-surface) 76%, transparent);white-space:nowrap;border-radius:999px;align-items:center;gap:.35rem;padding:0 .55rem;font-size:.62rem;font-weight:700;line-height:1;display:inline-flex}.offline-status-dot{background:var(--lumina-error,#ba1a1a);width:.52rem;height:.52rem;box-shadow:0 0 0 .16rem color-mix(in srgb, var(--lumina-error,#ba1a1a) 18%, transparent);border-radius:50%;flex:none}.reader-chrome-actions .offline-status{border-color:color-mix(in srgb, var(--reader-ui-muted) 28%, transparent);color:var(--reader-ui-muted);background:color-mix(in srgb, var(--reader-ui-surface) 76%, transparent)}.pwa-status-banner{z-index:30;border:1px solid var(--app-border);max-width:min(100% - 2rem,28rem);color:var(--app-text);background:var(--app-header-background);box-shadow:var(--app-overlay-shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);pointer-events:none;border-radius:.9rem;grid-template-columns:1fr auto auto;align-items:center;gap:.75rem;padding:.9rem;display:grid;position:fixed;bottom:1rem;right:1rem}.pwa-status-banner strong{margin-bottom:.2rem;display:block}.pwa-status-banner p{color:var(--app-text-muted);margin:0;font-size:.9rem;line-height:1.4}.pwa-status-banner button{border:1px solid var(--app-border);min-height:2.4rem;color:var(--app-text);background:var(--app-header-control-background);cursor:pointer;pointer-events:auto;border-radius:999px;padding:0 .8rem;font-weight:750}.pwa-status-banner button:first-of-type{color:var(--app-on-accent);border-color:var(--app-accent);background:var(--app-accent)}.hero-copy h1{letter-spacing:-.045em;color:var(--app-text);margin:0;font-family:Georgia,Times New Roman,serif;font-size:clamp(3rem,6vw,5.2rem);font-weight:500;line-height:.95}.hero-description{max-width:42rem;color:var(--app-text-muted);margin:1.25rem 0 1.6rem;font-size:clamp(1.05rem,2vw,1.3rem);line-height:1.55}.import-status{color:var(--app-text-muted);margin:.8rem 0 0;font-size:.92rem;line-height:1.45}.import-status strong{color:var(--app-text)}.local-storage-card{border:1px solid var(--app-border);border-radius:var(--radius-lg);background:var(--app-storage-background);box-shadow:var(--app-panel-shadow);padding:clamp(1.35rem,3vw,2rem)}.storage-card-heading,.privacy-message{align-items:center;gap:.9rem;display:flex}.storage-rule{background:var(--app-progress-track);border-radius:999px;height:.45rem;margin:1.25rem 0;overflow:hidden}.library-message{border:1px dashed var(--app-border-strong);border-radius:var(--radius-lg);text-align:center;min-height:20rem;color:var(--app-text);background:var(--app-message-background);justify-items:center;padding:3.5rem 1.5rem;display:grid}.empty-library-icon{width:4.5rem;height:4.5rem;color:var(--app-accent);background:var(--app-active);border-radius:50%;place-items:center;display:grid}.local-first-note{border:1px solid var(--app-border);border-radius:var(--radius-md);background:linear-gradient(90deg, var(--app-active), color-mix(in srgb, var(--app-surface) 58%, transparent));box-shadow:var(--app-card-shadow);align-items:center;gap:1rem;margin-top:2rem;padding:1.2rem 1.4rem;display:flex}.storage-card-heading svg{color:var(--app-accent)}.storage-rule:before{border-radius:inherit;background:var(--app-accent);content:"";width:24%;height:100%;display:block}.privacy-message>svg{width:2.6rem;height:2.6rem;color:var(--app-accent);background:var(--app-active);border-radius:50%;flex:none;padding:.55rem}.privacy-message p{color:var(--app-text-muted);gap:.25rem;margin:0;font-size:.92rem;line-height:1.45;display:grid}.privacy-message strong{color:var(--app-text)}.library-overview{border:1px solid var(--lumina-outline-variant);border-radius:var(--radius-xl);color:var(--lumina-inverse-on-surface);background:radial-gradient(circle at 92% 12%,#c1c8ca1f,#0000 22rem),linear-gradient(135deg,#2d2d2efa,#1e1e1ff5);grid-template-columns:minmax(0,1fr) minmax(21rem,.8fr) 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