.theme-toggle{width:40px;height:40px;border-radius:var(--radius-pill);border:1px solid var(--color-border);background-color:var(--color-bg-secondary);color:var(--color-text-secondary);display:grid;place-items:center;cursor:pointer;transition:border-color var(--transition-base),color var(--transition-base),transform var(--transition-fast),background-color var(--transition-base)}.theme-toggle:hover{border-color:var(--color-border-hover)}.theme-toggle.is-light{color:var(--color-accent-gold);border-color:var(--color-accent-gold)}.theme-toggle__icon{display:inline-block;transition:transform var(--transition-base);font-size:1rem}.theme-toggle__icon.is-light{transform:rotate(180deg)}.ui-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);border-radius:var(--radius-pill);border:1px solid transparent;font-weight:600;cursor:pointer;transition:background-color var(--transition-base),border-color var(--transition-base),color var(--transition-base),transform var(--transition-fast),box-shadow var(--transition-base)}.ui-button:disabled{cursor:not-allowed;opacity:.7}.ui-button--sm{padding:var(--space-2) var(--space-3);font-size:.85rem}.ui-button--md{padding:var(--space-3) var(--space-5);font-size:.95rem}.ui-button--lg{padding:var(--space-4) var(--space-6);font-size:1rem}.ui-button--primary{background-color:var(--color-accent-gold);color:var(--color-text-on-accent);border-color:var(--color-accent-gold)}.ui-button--primary:hover:not(:disabled){background-color:var(--color-accent-gold-hover);border-color:var(--color-accent-gold-hover);transform:translateY(-1px)}.ui-button--secondary{background-color:transparent;color:var(--color-accent-gold);border-color:var(--color-accent-gold)}.ui-button--secondary:hover:not(:disabled){background-color:color-mix(in srgb,var(--color-accent-gold) 15%,transparent)}.ui-button--ghost{background-color:transparent;color:var(--color-text-secondary);border-color:transparent}.ui-button--ghost:hover:not(:disabled){color:var(--color-accent-blue)}.ui-button__spinner{width:16px;height:16px;border-radius:50%;border:2px solid color-mix(in srgb,currentColor 35%,transparent);border-top-color:currentColor;animation:ui-button-spin .9s linear infinite}@keyframes ui-button-spin{to{transform:rotate(360deg)}}.navbar{position:fixed;top:0;left:0;width:100%;z-index:20;background-color:color-mix(in srgb,var(--color-bg-primary) 90%,transparent);border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.navbar__content{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);gap:var(--space-4)}.navbar__logo{font-family:var(--font-display);font-size:1.3rem;font-weight:700}.navbar__logo span{color:var(--color-accent-gold)}.navbar__toggle{display:none;background:transparent;border:none;padding:0;cursor:pointer}.navbar__toggle-bar{display:block;width:22px;height:2px;background-color:var(--color-text-primary);margin:4px 0;transition:transform var(--transition-base)}.navbar__menu{display:flex;align-items:center;gap:var(--space-4)}.navbar__links{display:flex;gap:var(--space-4)}.navbar__link{color:var(--color-text-secondary);font-weight:500;transition:color var(--transition-fast)}.navbar__link:hover,.navbar__link.is-active{color:var(--color-text-primary)}.navbar__actions{display:flex;align-items:center;gap:var(--space-3)}.navbar__avatar{position:relative}.navbar__avatar-button{width:36px;height:36px;border-radius:50%;border:1px solid var(--color-accent-gold);background-color:var(--color-bg-secondary);color:var(--color-accent-gold);font-weight:600;cursor:pointer;position:relative}.navbar__avatar-dot{position:absolute;top:-2px;right:-2px;width:10px;height:10px;border-radius:50%;background:var(--color-accent-gold);border:2px solid var(--color-bg-primary)}.navbar__verify-tooltip{position:absolute;top:44px;right:0;background:var(--color-bg-card);color:var(--color-text-secondary);border:1px solid var(--color-border);padding:6px 10px;border-radius:var(--radius-pill);font-size:.75rem;white-space:nowrap}.navbar__avatar-menu{position:absolute;top:46px;right:0;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2);display:grid;gap:var(--space-2);min-width:140px}.navbar__avatar-menu button{background:transparent;border:none;color:var(--color-text-secondary);text-align:left;padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);cursor:pointer}.navbar__menu-item{display:inline-flex;align-items:center;gap:var(--space-2)}.navbar__shelf-dot{width:8px;height:8px;border-radius:50%;background:var(--color-accent-gold)}.navbar__avatar-menu button:hover{background-color:var(--color-bg-secondary);color:var(--color-text-primary)}@media (max-width: 900px){.navbar__toggle{display:inline-flex;flex-direction:column;justify-content:center}.navbar__menu{position:absolute;top:100%;left:0;right:0;background-color:var(--color-bg-primary);border-bottom:1px solid var(--color-border);flex-direction:column;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity var(--transition-base),transform var(--transition-base)}.navbar__menu.is-open{opacity:1;transform:translateY(0);pointer-events:auto}.navbar__links{flex-direction:column;align-items:flex-start}.navbar__actions{width:100%;justify-content:space-between}}.footer{border-top:1px solid var(--color-border);background-color:var(--color-bg-secondary);color:var(--color-text-muted)}.footer__content{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-4) 0}.footer__links{display:flex;gap:var(--space-4)}.footer__links a{color:var(--color-text-secondary);transition:color var(--transition-fast)}.footer__links a:hover{color:var(--color-text-primary)}.app-shell{min-height:100vh;display:flex;flex-direction:column;background:var(--color-bg-primary)}.app-content{flex:1;padding-top:88px}@media (max-width: 768px){.app-content{padding-top:72px}}.ui-skeleton{width:100%;background:linear-gradient(90deg,var(--color-bg-secondary) 0%,var(--color-border) 50%,var(--color-bg-secondary) 100%);background-size:200% 100%;animation:ui-skeleton-shimmer 1.4s ease infinite;border-radius:var(--radius-md)}@keyframes ui-skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.ui-badge{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-1) var(--space-2);border-radius:var(--radius-pill);font-size:.75rem;font-weight:600;letter-spacing:.02em;text-transform:uppercase}.ui-badge--new{background-color:var(--color-accent-gold);color:var(--color-text-on-accent)}.ui-badge--genre{border:1px solid var(--color-accent-blue);color:var(--color-accent-blue);background-color:transparent}.ui-badge--downloaded{border:1px solid var(--color-accent-blue);color:var(--color-accent-blue);background-color:color-mix(in srgb,var(--color-accent-blue) 10%,transparent)}.ui-badge--draft{background-color:var(--color-bg-secondary);color:var(--color-text-muted);border:1px solid var(--color-border)}.book-card{background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;gap:var(--space-3);cursor:pointer;transition:transform var(--transition-base),border-color var(--transition-base),box-shadow var(--transition-base)}.book-card:hover{transform:scale(1.02);border-color:var(--color-accent-gold);box-shadow:0 12px 24px color-mix(in srgb,var(--color-accent-gold) 20%,transparent)}.book-card__cover-wrapper{position:relative;width:100%;aspect-ratio:2 / 3;overflow:hidden}.book-card__cover{width:100%;height:100%;object-fit:cover}.book-card__ribbon{position:absolute;top:var(--space-3);left:var(--space-3);background-color:var(--color-accent-gold);color:var(--color-text-on-accent);padding:var(--space-1) var(--space-3);border-radius:var(--radius-pill);font-size:.7rem;font-weight:600}.book-card__info{padding:0 var(--space-4) var(--space-4);display:grid;gap:var(--space-2)}.book-card__info h3{font-family:var(--font-display);font-size:1.05rem;margin:0}.book-card__author{margin:0;color:var(--color-text-secondary);font-size:.9rem}.book-card__meta{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);font-size:.85rem;color:var(--color-text-muted)}.book-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4)}.book-grid__skeleton{background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden}.book-grid__skeleton-cover{aspect-ratio:2 / 3;border-radius:0}.book-grid__skeleton-body{padding:var(--space-4);display:grid;gap:var(--space-2)}@media (min-width: 720px){.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (min-width: 1024px){.book-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}.home{display:flex;flex-direction:column;gap:var(--space-8);padding-bottom:var(--space-8)}.home-hero{padding:var(--space-8) 0;background:linear-gradient(120deg,var(--color-bg-primary),var(--color-bg-secondary),var(--color-bg-primary));background-size:200% 200%;animation:hero-gradient 12s ease infinite}.home-hero__content{display:flex;justify-content:flex-start}.home-hero__text{max-width:640px;display:grid;gap:var(--space-4)}.home-hero__eyebrow{color:var(--color-accent-gold);text-transform:uppercase;letter-spacing:.2em;font-size:.75rem;margin:0}.home-hero__text h1{font-family:var(--font-display);font-size:clamp(2.6rem,5vw,3.8rem);margin:0}.home-hero__subtitle{margin:0;color:var(--color-text-secondary);font-size:1.1rem}.home-hero__actions{display:flex;flex-wrap:wrap;gap:var(--space-3)}.home-section{display:grid;gap:var(--space-4)}.home-section__header h2{font-family:var(--font-display);margin:0 0 var(--space-2)}.home-section__header p{margin:0;color:var(--color-text-secondary)}.home-featured{display:flex;gap:var(--space-4);overflow-x:auto;padding:0 var(--space-4);scroll-snap-type:x mandatory}.home-featured__item{min-width:220px;flex:0 0 auto;scroll-snap-align:start}.home-featured__skeleton{height:320px;border-radius:var(--radius-lg)}.home__error{margin-top:var(--space-3);color:var(--color-text-secondary)}.home-about{text-align:center}.home-about__content{display:grid;gap:var(--space-4)}.home-about__content h2{font-family:var(--font-display);margin:0}.home-about__content p{margin:0 auto;max-width:720px;color:var(--color-text-secondary)}.home-about__stats{display:flex;justify-content:center;gap:var(--space-6)}.home-about__stats h3{margin:0;font-family:var(--font-display);font-size:2rem;color:var(--color-accent-gold)}.home-about__stats span{color:var(--color-text-muted)}@keyframes hero-gradient{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@media (max-width: 720px){.home-about__stats{flex-direction:column;gap:var(--space-3)}}.browse{display:flex;flex-direction:column;gap:var(--space-6);padding-bottom:var(--space-8)}.browse__header h1{font-family:var(--font-display);margin:0 0 var(--space-2)}.browse__header p{margin:0;color:var(--color-text-secondary)}.browse__filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4);align-items:end}.browse__label{font-size:.8rem;color:var(--color-text-muted);margin-bottom:var(--space-2);display:block}.browse__search input,.browse__select select{width:100%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-bg-card);color:var(--color-text-primary);transition:border-color var(--transition-fast)}.browse__search input:focus,.browse__select select:focus{outline:none;border-color:var(--color-accent-blue)}.browse__sort{display:flex;flex-direction:column;gap:var(--space-2)}.browse__sort-buttons{display:inline-flex;border:1px solid var(--color-border);border-radius:var(--radius-pill);overflow:hidden}.browse__sort-button{padding:var(--space-2) var(--space-4);background-color:transparent;border:none;color:var(--color-text-secondary);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast)}.browse__sort-button.is-active{background-color:var(--color-accent-gold);color:var(--color-text-on-accent)}.browse__sort-button:not(.is-active):hover{color:var(--color-text-primary)}.browse__empty{text-align:center;padding:var(--space-8) var(--space-4);background-color:var(--color-bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--color-border);display:grid;gap:var(--space-3);justify-items:center}.browse__empty h2{margin:0;font-family:var(--font-display)}.browse__empty p{margin:0;color:var(--color-text-secondary)}.browse__empty-illustration{width:180px;color:var(--color-text-muted)}.browse__empty-illustration svg rect{fill:var(--color-bg-card);stroke:var(--color-border);stroke-width:2}.browse__empty-illustration svg line{stroke:var(--color-text-muted);stroke-width:2}.auth-gate{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--color-overlay);display:flex;align-items:center;justify-content:center;padding:var(--space-4);z-index:40}.auth-gate__card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);max-width:420px;width:100%;position:relative;text-align:left}.auth-gate__card h3{margin:0 0 var(--space-3);font-size:1.3rem}.auth-gate__card p{margin:0 0 var(--space-5);color:var(--color-text-secondary)}.auth-gate__actions{display:flex;gap:var(--space-3);flex-wrap:wrap}.auth-gate__close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:1px solid var(--color-border);background:transparent;color:var(--color-text-secondary);cursor:pointer;font-size:20px;line-height:1}.auth-gate__close:hover{color:var(--color-text-primary)}.download-button{position:relative;overflow:hidden}.download-button:after{content:"";position:absolute;left:0;bottom:0;height:4px;width:var(--download-progress, 0%);background-color:var(--color-accent-gold);transition:width var(--transition-base)}.download-button--saved{border:1px solid var(--color-accent-blue);color:var(--color-accent-blue)}.download-button--saved:hover{color:var(--color-accent-blue)}.download-button--saved:after{display:none}.download-button--error{border:1px solid #ef4444;color:#ef4444;background:transparent}.download-button--error:after{background-color:#ef4444}.download-button--downloading{color:var(--color-text-on-accent)}.book-detail{display:flex;flex-direction:column;gap:var(--space-8);padding-bottom:var(--space-8)}.book-detail__layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:var(--space-6);align-items:start}.book-detail__main{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:var(--space-5);align-items:start}.book-detail__cover{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border);background-color:var(--color-bg-card)}.book-detail__cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:2 / 3}.book-detail__meta h1{font-family:var(--font-display);margin:var(--space-3) 0 var(--space-2)}.book-detail__author{margin:0 0 var(--space-3);color:var(--color-text-secondary)}.book-detail__stats{display:flex;gap:var(--space-3);font-size:.9rem;color:var(--color-text-muted)}.book-detail__description{margin-top:var(--space-4);color:var(--color-text-secondary);line-height:1.6}.book-detail__actions{position:sticky;top:96px;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-5);display:grid;gap:var(--space-3)}.book-detail__hint{margin:0;color:var(--color-text-muted);font-size:.85rem}.book-detail__recommendations h2{font-family:var(--font-display)}.book-detail__row{display:flex;gap:var(--space-4);overflow-x:auto;padding-bottom:var(--space-2)}.book-detail__row-item{min-width:220px;flex:0 0 auto}.book-detail__modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:var(--color-overlay);display:grid;place-items:center;z-index:30;padding:var(--space-4)}.book-detail__modal{background-color:var(--color-bg-card);border-radius:var(--radius-lg);border:1px solid var(--color-border);padding:var(--space-6);max-width:420px;display:grid;gap:var(--space-3)}.book-detail__modal h3{margin:0;font-family:var(--font-display)}.book-detail__modal p{margin:0;color:var(--color-text-secondary)}.book-detail__modal-actions{display:flex;gap:var(--space-3);justify-content:flex-end}.book-detail__empty{text-align:center;padding:var(--space-8) var(--space-4);display:grid;gap:var(--space-3);justify-items:center}@media (max-width: 960px){.book-detail__layout,.book-detail__main{grid-template-columns:1fr}.book-detail__actions{position:static}}.reader{min-height:100vh;background-color:var(--color-reader-bg-dark);color:var(--color-text-primary);display:flex;flex-direction:column}.reader[data-reader-bg=sepia]{background-color:var(--color-reader-bg-sepia);color:var(--color-text-on-accent)}.reader[data-reader-bg=white]{background-color:var(--color-reader-bg-white);color:var(--color-text-on-accent)}.reader__topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-3) var(--space-4);background-color:color-mix(in srgb,var(--color-bg-primary) 85%,transparent);border-bottom:1px solid var(--color-border)}.reader__back{background:transparent;border:none;font-size:1.2rem;cursor:pointer;color:inherit}.reader__title{font-family:var(--font-display);font-size:1.1rem}.reader__topbar-right{display:flex;align-items:center;gap:var(--space-3)}.reader__counter{font-family:var(--font-mono);font-size:.9rem;color:var(--color-text-secondary)}.reader__settings-toggle{background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-pill);width:36px;height:36px;cursor:pointer;color:inherit}.reader__content{flex:1;display:flex;flex-direction:column;gap:var(--space-4);padding:var(--space-4) var(--space-4) var(--space-6)}.reader__viewport{flex:1;display:grid;place-items:center;border:1px solid var(--color-border);border-radius:var(--radius-lg);background-color:var(--color-bg-card);padding:var(--space-4);position:relative;overflow:hidden}.reader__pdf-wrapper{width:100%;display:grid;place-items:center}.reader__pdf-canvas{max-width:100%;height:auto;border-radius:var(--radius-md);background-color:var(--color-bg-primary)}.reader__pdf-canvas:not(.is-active){display:none}.reader__slide{max-width:100%;height:auto;border-radius:var(--radius-md);object-fit:contain}.reader__empty-slide{color:var(--color-text-secondary);font-size:.9rem}.reader__loading{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background-color:color-mix(in srgb,var(--color-bg-card) 80%,transparent)}.reader__spinner{width:40px;height:40px;border-radius:50%;border:3px solid color-mix(in srgb,var(--color-accent-gold) 40%,transparent);border-top-color:var(--color-accent-gold);animation:reader-spin .8s linear infinite}.reader__controls{display:flex;align-items:center;justify-content:center;gap:var(--space-3);flex-wrap:wrap}.reader__page-input{display:grid;gap:var(--space-1);font-size:.75rem;color:var(--color-text-muted)}.reader__page-input input{width:80px;padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-bg-card);color:var(--color-text-primary)}.reader__progress{height:6px;width:100%;background-color:var(--color-bg-secondary)}.reader__progress-bar{height:100%;background-color:var(--color-accent-gold);transition:width var(--transition-base)}.reader__settings{position:fixed;top:0;right:0;height:100%;width:min(320px,90vw);background-color:var(--color-bg-card);border-left:1px solid var(--color-border);padding:var(--space-4);display:grid;gap:var(--space-4);transform:translate(100%);transition:transform var(--transition-base);z-index:20}.reader__settings.is-open{transform:translate(0)}.reader__settings-header{display:flex;align-items:center;justify-content:space-between}.reader__settings-header h3{margin:0;font-family:var(--font-display)}.reader__settings-header button{background:transparent;border:none;color:inherit;cursor:pointer}.reader__settings-group{display:grid;gap:var(--space-2);color:var(--color-text-secondary)}.reader__settings-buttons{display:flex;gap:var(--space-2)}.reader__settings-buttons button{border:1px solid var(--color-border);background-color:var(--color-bg-secondary);color:var(--color-text-secondary);padding:var(--space-2) var(--space-3);border-radius:var(--radius-pill);cursor:pointer;transition:border-color var(--transition-fast),color var(--transition-fast),background-color var(--transition-fast)}.reader__settings-buttons button.is-active,.reader__settings-buttons button:hover{border-color:var(--color-accent-gold);color:var(--color-accent-gold)}.reader__empty{min-height:100vh;display:grid;place-items:center;text-align:center;gap:var(--space-3)}@keyframes reader-spin{to{transform:rotate(360deg)}}.offline{min-height:60vh;display:grid;place-items:center;padding:var(--space-8) var(--space-4)}.offline__card{text-align:center;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);display:grid;gap:var(--space-3);max-width:520px}.offline__card h1{font-family:var(--font-display);margin:0}.offline__card p{margin:0;color:var(--color-text-secondary)}.not-found{min-height:60vh;display:grid;place-items:center;padding:var(--space-8) var(--space-4)}.not-found__card{text-align:center;background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);display:grid;gap:var(--space-3);max-width:520px}.not-found__card h1{margin:0;font-family:var(--font-display)}.not-found__card p{margin:0;color:var(--color-text-secondary)}.auth-page{min-height:calc(100vh - 88px);display:flex;align-items:center;justify-content:center;padding:var(--space-6) var(--space-4)}.auth-card{width:min(420px,100%);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:0 24px 60px #00000040}.auth-card h1{margin-top:0;margin-bottom:var(--space-3)}.auth-card p{margin-top:0;margin-bottom:var(--space-5);color:var(--color-text-secondary)}.auth-form{display:grid;gap:var(--space-4)}.auth-field{display:grid;gap:var(--space-2)}.auth-field label{font-size:.9rem;color:var(--color-text-secondary)}.auth-field input{padding:var(--space-3);border-radius:var(--radius-md);border:1px solid var(--color-border);background:var(--color-bg-secondary);color:var(--color-text-primary)}.auth-field input:focus{outline:2px solid color-mix(in srgb,var(--color-accent-gold) 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