.reader{display:grid;grid-template-columns:auto 1fr auto;grid-template-rows:auto 1fr;height:100vh;overflow:hidden;background:var(--color-surface)}.reader__header{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);background:var(--color-surface-muted);border-bottom:1px solid var(--color-border);min-height:64px;position:sticky;top:0;z-index:100;transition:transform var(--duration-normal) var(--ease-out)}.reader__header--hidden{transform:translateY(-100%)}.reader__header-left{display:flex;align-items:center;gap:var(--space-4)}.reader__back-link{display:none;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);text-decoration:none;border-radius:var(--radius-md);transition:all var(--duration-fast) var(--ease-out)}@media(min-width:768px){.reader__back-link{display:flex}}.reader__back-link:hover{color:var(--color-text);background:var(--color-surface-hover);text-decoration:none}.reader__back-link svg{flex-shrink:0;transition:transform var(--duration-fast) var(--ease-out)}.reader__back-link:hover svg{transform:translate(-3px)}@media(min-width:768px){.reader__back-text{display:inline}}.reader__sidebar{grid-row:2;width:280px;border-right:1px solid var(--color-border);background:var(--color-surface-muted);overflow-y:auto;transition:margin var(--duration-normal) var(--ease-out)}.reader__sidebar--collapsed{margin-left:-280px}@media(min-width:768px){.reader__sidebar{width:320px}.reader__sidebar--collapsed{margin-left:-320px}}.reader__viewer{grid-row:2;overflow:hidden;background:var(--color-surface);position:relative}[data-theme=dark] .reader__viewer{background:#1a1a1a}.reader__chat{grid-row:2;width:360px;border-left:1px solid var(--color-border);background:var(--color-surface-muted);overflow:hidden;display:flex;flex-direction:column;transition:margin var(--duration-normal) var(--ease-out)}.reader__chat--collapsed{margin-right:-360px}@media(min-width:1024px){.reader__chat{width:400px}.reader__chat--collapsed{margin-right:-400px}}.uploader{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:var(--space-6);padding:var(--space-16);text-align:center}.uploader__dropzone{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:var(--space-4);width:100%;max-width:500px;padding:var(--space-12);border:2px dashed var(--color-border);border-radius:var(--radius-2xl);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.uploader__dropzone:hover,.uploader__dropzone--active{border-color:var(--color-primary);background:var(--color-primary-ghost)}[data-theme=dark] .uploader__dropzone:hover,[data-theme=dark] .uploader__dropzone--active{border-color:var(--color-accent);background:var(--color-accent-ghost)}.uploader__icon{width:64px;height:64px;color:var(--color-text-muted)}.uploader__title{font-size:var(--text-xl);font-weight:600;color:var(--color-text)}.uploader__subtitle{font-size:var(--text-sm);color:var(--color-text-muted)}.uploader__input{display:none}.uploader__error{padding:var(--space-3) var(--space-4);background:#dc26261a;border:1px solid var(--color-error);border-radius:var(--radius-lg);color:var(--color-error);font-size:var(--text-sm)}.uploader__recent{width:100%;max-width:500px}.uploader__recent-title{font-size:var(--text-sm);font-weight:600;color:var(--color-text-muted);margin-bottom:var(--space-3)}.uploader__recent-list{display:flex;flex-direction:column;gap:var(--space-2)}.uploader__recent-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.uploader__recent-item:hover{border-color:var(--color-primary);background:var(--color-primary-ghost)}[data-theme=dark] .uploader__recent-item:hover{border-color:var(--color-accent)}.uploader__recent-info{flex:1;min-width:0}.uploader__recent-name{font-size:var(--text-sm);font-weight:500;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.uploader__recent-meta{font-size:var(--text-xs);color:var(--color-text-muted)}.pdf-viewer{position:absolute;inset:0 0 80px;overflow:auto;padding:var(--space-4);overscroll-behavior:contain;scrollbar-gutter:stable}.pdf-viewer__page{position:relative;flex:0 0 auto;width:fit-content;height:fit-content;margin:0 auto;box-shadow:var(--shadow-lg);border-radius:var(--radius-md);overflow:hidden;background:#fff}.pdf-viewer__canvas{display:block;max-width:none}.pdf-viewer__text-layer{position:absolute;inset:0;overflow:hidden;line-height:1;user-select:text}.pdf-viewer__text-layer span{position:absolute;cursor:text}.pdf-viewer__text-layer ::selection{background:var(--color-primary);color:#fff}.pdf-viewer__highlight-layer{position:absolute;inset:0;pointer-events:none}.pdf-viewer__loading{display:flex;align-items:center;justify-content:center;padding:var(--space-16);color:var(--color-text-muted)}.page-controls{position:absolute;bottom:var(--space-4);left:50%;transform:translate(-50%);z-index:50;display:flex;align-items:center;gap:var(--space-4);padding:var(--space-3) var(--space-4);background:var(--color-surface-muted);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}@media(min-width:768px){.page-controls{padding:var(--space-4)}}.page-controls__btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.page-controls__btn:hover:not(:disabled){background:var(--color-surface-hover);border-color:var(--color-primary)}.page-controls__btn:disabled{opacity:.5;cursor:not-allowed}.page-controls__btn svg{width:20px;height:20px}.page-controls__page-input{width:60px;padding:var(--space-2);text-align:center;font-size:var(--text-sm);font-weight:500;background:var(--color-surface);border:none;border-radius:var(--radius-md);color:var(--color-text);-webkit-appearance:textfield;-moz-appearance:textfield;appearance:textfield}.page-controls__page-input::-webkit-outer-spin-button,.page-controls__page-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.page-controls__page-input:focus{outline:none;box-shadow:0 0 0 1px color-mix(in srgb,var(--color-primary) 55%,transparent)}.page-controls__divider{width:1px;height:24px;background:var(--color-border)}.page-controls__zoom{display:flex;align-items:center;gap:var(--space-2)}.page-controls__zoom-value{font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);min-width:50px;text-align:center}.sidebar__tabs{display:flex;border-bottom:1px solid var(--color-border)}.sidebar__tab{flex:1;padding:var(--space-3) var(--space-4);font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);background:transparent;border:none;cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.sidebar__tab:hover{color:var(--color-text)}.sidebar__tab--active{color:var(--color-primary);border-bottom:2px solid var(--color-primary)}[data-theme=dark] .sidebar__tab--active{color:var(--color-accent);border-color:var(--color-accent)}.sidebar__content{padding:var(--space-4);overflow-y:auto;max-height:calc(100vh - 200px)}.sidebar__empty{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:var(--space-2);padding:var(--space-8);color:var(--color-text-muted);text-align:center;font-size:var(--text-sm)}.sidebar__item{display:flex;gap:var(--space-3);padding:var(--space-3);margin-bottom:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.sidebar__item:hover{border-color:var(--color-primary)}[data-theme=dark] .sidebar__item:hover{border-color:var(--color-accent)}.sidebar__item--highlight{padding-block:var(--space-2)}.sidebar__item--highlight-yellow{border-color:#ca8a04;background:linear-gradient(90deg,rgba(250,204,21,.12),transparent 30%)}.sidebar__item--highlight-green{border-color:#15803d;background:linear-gradient(90deg,rgba(34,197,94,.11),transparent 30%)}.sidebar__item--highlight-blue{border-color:#1d4ed8;background:linear-gradient(90deg,rgba(59,130,246,.11),transparent 30%)}.sidebar__item--highlight-pink{border-color:#be185d;background:linear-gradient(90deg,rgba(236,72,153,.11),transparent 30%)}.sidebar__item--highlight-yellow:hover{border-color:#ca8a04}.sidebar__item--highlight-green:hover{border-color:#15803d}.sidebar__item--highlight-blue:hover{border-color:#1d4ed8}.sidebar__item--highlight-pink:hover{border-color:#be185d}[data-theme=dark] .sidebar__item--highlight-yellow,[data-theme=dark] .sidebar__item--highlight-yellow:hover{border-color:#eab308}[data-theme=dark] .sidebar__item--highlight-green,[data-theme=dark] .sidebar__item--highlight-green:hover{border-color:#22c55e}[data-theme=dark] .sidebar__item--highlight-blue,[data-theme=dark] .sidebar__item--highlight-blue:hover{border-color:#3b82f6}[data-theme=dark] .sidebar__item--highlight-pink,[data-theme=dark] .sidebar__item--highlight-pink:hover{border-color:#ec4899}.sidebar__item-page{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:32px;height:32px;font-size:var(--text-xs);font-weight:600;background:var(--color-primary-ghost);color:var(--color-primary);border-radius:var(--radius-md);position:relative;overflow:visible}[data-theme=dark] .sidebar__item-page{background:var(--color-accent-ghost);color:var(--color-accent)}.sidebar__item-page-number{line-height:1}.sidebar__item-content{flex:1;min-width:0}.sidebar__item-text{font-size:var(--text-sm);color:var(--color-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.sidebar__item-meta{font-size:var(--text-xs);color:var(--color-text-muted);margin-top:var(--space-1)}.sidebar__item-delete{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:transparent;border:none;color:var(--color-text-muted);cursor:pointer;border-radius:var(--radius-md);opacity:0;transition:all var(--duration-fast) var(--ease-out)}.sidebar__item:hover .sidebar__item-delete{opacity:1}.sidebar__item-delete:hover{color:var(--color-error);background:#dc26261a}.sidebar__item-delete svg{width:16px;height:16px}.highlight-color{display:inline-block;width:20px;height:20px;border-radius:var(--radius-full);border:2px solid transparent;cursor:pointer;transition:transform var(--duration-fast) var(--ease-out)}.highlight-color:hover{transform:scale(1.1)}.highlight-color--active{border-color:var(--color-text)}.highlight-color--yellow{background:#ffeb3bb3}.highlight-color--green{background:#4caf50b3}.highlight-color--blue{background:#2196f3b3}.highlight-color--pink{background:#e91e63b3}.chat{display:flex;flex-direction:column;height:100%}.chat__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border)}.chat__header-actions{display:flex;align-items:center;gap:var(--space-2)}.chat__header-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;border-radius:var(--radius-full);border:1px solid color-mix(in srgb,var(--color-primary) 22%,var(--color-border));background:color-mix(in srgb,var(--color-primary) 10%,transparent);color:var(--color-primary);cursor:pointer;transition:transform var(--duration-fast) var(--ease-out),background var(--duration-fast) var(--ease-out),border-color var(--duration-fast) var(--ease-out),color var(--duration-fast) var(--ease-out),opacity var(--duration-fast) var(--ease-out)}.chat__header-btn svg{width:14px;height:14px;flex-shrink:0}.chat__header-btn span{display:none;font-size:.75rem;font-weight:600;letter-spacing:.01em;white-space:nowrap}.chat__header-btn:hover:not(:disabled){transform:translateY(-1px);background:color-mix(in srgb,var(--color-primary) 18%,transparent);border-color:color-mix(in srgb,var(--color-primary) 40%,var(--color-border))}.chat__header-btn:active:not(:disabled){transform:translateY(0)}.chat__header-btn:disabled{opacity:.45;cursor:not-allowed}@media(min-width:768px){.chat__header-btn{width:auto;min-width:32px;padding:0 var(--space-3);gap:var(--space-2);border-radius:var(--radius-lg)}.chat__header-btn span{display:inline}}[data-theme=dark] .chat__header-btn{border-color:color-mix(in srgb,var(--color-accent) 40%,var(--color-border));background:color-mix(in srgb,var(--color-accent) 16%,transparent);color:var(--color-accent)}[data-theme=dark] .chat__header-btn:hover:not(:disabled){background:color-mix(in srgb,var(--color-accent) 24%,transparent)}.chat__title{font-size:var(--text-sm);font-weight:600;color:var(--color-text)}.chat__messages{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-4)}.chat__message{min-width:0;max-width:85%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-xl);font-size:var(--text-sm);line-height:var(--leading-relaxed);overflow-wrap:anywhere;word-break:break-word}.chat__message--user{align-self:flex-end;background:var(--color-primary);color:#fff;border-bottom-right-radius:var(--radius-sm)}.chat__message--assistant{align-self:flex-start;background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);border-bottom-left-radius:var(--radius-sm)}.chat__message--assistant p{margin:0 0 var(--space-2)}.chat__message--assistant p:last-child{margin-bottom:0}.chat__message--assistant h1,.chat__message--assistant h2,.chat__message--assistant h3,.chat__message--assistant h4,.chat__message--assistant h5,.chat__message--assistant h6{margin:0 0 var(--space-2);font-size:var(--text-sm);font-weight:700;line-height:var(--leading-tight)}.chat__message--assistant ul,.chat__message--assistant ol{margin:0 0 var(--space-2) var(--space-5);padding:0}.chat__message--assistant li+li{margin-top:var(--space-1)}.chat__message--assistant strong{font-weight:700}.chat__message--assistant code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.82em;background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.08rem .32rem}.chat__message--assistant pre{margin:var(--space-2) 0;padding:var(--space-3);background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow-x:auto}.chat__message--assistant pre code{border:none;background:transparent;padding:0}.chat__message--assistant a{color:var(--color-primary);text-decoration:underline;text-underline-offset:2px}.chat__typing{display:flex;gap:var(--space-1);padding:var(--space-3) var(--space-4)}.chat__typing span{width:8px;height:8px;background:var(--color-text-muted);border-radius:var(--radius-full);animation:typing 1.4s ease-in-out infinite}.chat__typing span:nth-child(2){animation-delay:.2s}.chat__typing span:nth-child(3){animation-delay:.4s}.chat__input-area{padding:var(--space-4);border-top:1px solid var(--color-border);background:var(--color-surface)}.chat__form{display:flex;gap:var(--space-2);align-items:center}.chat__input-wrapper{flex:1;min-width:0;position:relative;display:flex;align-items:center}.chat__clear{position:absolute;right:var(--space-2);top:50%;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;background:var(--color-surface-hover);border:none;border-radius:var(--radius-full);color:var(--color-text-muted);cursor:pointer;opacity:0;transition:opacity var(--duration-fast),background var(--duration-fast),color var(--duration-fast)}.chat__clear:hover{background:var(--color-error);color:#fff}.chat__clear svg{width:14px;height:14px}.chat__input{flex:1;width:100%;padding:var(--space-3) var(--space-10) var(--space-3) var(--space-4);font-size:var(--text-sm);background:var(--color-surface-muted);border:1px solid var(--color-border);border-radius:var(--radius-xl);color:var(--color-text);resize:none}.chat__input::placeholder{color:var(--color-text-muted)}.chat__input:focus,.chat__input:focus-visible,.chat__input:focus-within{outline:none!important;outline-offset:0!important;box-shadow:none!important;border-color:var(--color-accent)}.chat__send{display:flex;align-items:center;justify-content:center;width:40px;height:40px;flex-shrink:0;align-self:center;background:var(--color-primary);border:none;border-radius:var(--radius-full);color:#fff;cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.chat__send:hover{background:var(--color-primary-hover)}.chat__send:disabled{opacity:.5;cursor:not-allowed}.chat__send svg{width:20px;height:20px}.chat__empty{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:var(--space-4);padding:var(--space-8);text-align:center;color:var(--color-text-muted)}.chat__empty-icon{width:48px;height:48px;color:var(--color-primary)}[data-theme=dark] .chat__empty-icon{color:var(--color-accent)}.highlight-popover{position:fixed;z-index:1000;display:flex;gap:var(--space-2);padding:var(--space-2);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.highlight-popover__btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.highlight-popover__btn:hover{background:var(--color-surface-hover)}.header-actions{display:flex;align-items:center;gap:var(--space-2)}.header-actions__btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;background:transparent;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.header-actions__btn:hover{background:var(--color-surface-hover);border-color:var(--color-primary)}[data-theme=dark] .header-actions__btn:hover{border-color:var(--color-accent)}.header-actions__btn--active{background:var(--color-primary-ghost);border-color:var(--color-primary);color:var(--color-primary)}[data-theme=dark] .header-actions__btn--active{background:var(--color-accent-ghost);border-color:var(--color-accent);color:var(--color-accent)}.header-actions__btn svg{width:18px;height:18px}.reader-logo{display:flex;align-items:center;gap:var(--space-2);text-decoration:none;color:var(--color-text);filter:saturate(1.05)}.reader-logo:hover,.reader-logo:focus-visible,.reader-logo:active{text-decoration:none!important}.reader-logo__icon{width:30px;height:30px;color:var(--color-primary);filter:drop-shadow(0 0 10px rgba(124,58,237,.35))}[data-theme=dark] .reader-logo__icon{color:var(--color-accent);filter:drop-shadow(0 0 12px rgba(232,121,249,.38))}.reader-logo__text{font-size:var(--text-xl);font-weight:800;letter-spacing:-.02em;color:var(--color-text);text-decoration:none!important}@supports (-webkit-background-clip: text) or (background-clip: text){.reader-logo__text{background:linear-gradient(116deg,#d2c0fffa,#f8fafcfa 42%,#e879f9fa);-webkit-background-clip:text;background-clip:text;color:transparent}}.reader-logo__ai{color:var(--color-primary);text-shadow:0 0 12px rgba(124,58,237,.35);text-decoration:none!important}[data-theme=dark] .reader-logo__ai{color:var(--color-accent);text-shadow:0 0 14px rgba(232,121,249,.4)}.pdf-status{flex:1;min-width:0;max-width:min(62vw,860px);margin:0 var(--space-3);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.pdf-title{width:100%;text-align:center;font-family:"SF Pro Display","SF Pro Text",var(--font-display);font-size:clamp(.9rem,.84rem + .28vw,1.06rem);font-weight:600;letter-spacing:-.01em;line-height:1.2;color:var(--color-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 var(--space-2);text-shadow:0 1px 0 rgba(0,0,0,.26),0 0 18px rgba(124,58,237,.2)}@supports (-webkit-background-clip: text) or (background-clip: text){.pdf-title{background:linear-gradient(92deg,#f8fafcf5,#e9d5fff5 48%,#f0abfceb);-webkit-background-clip:text;background-clip:text;color:transparent}}[data-theme=dark] .pdf-title{color:#f8fafceb;text-shadow:0 1px 0 rgba(0,0,0,.38),0 0 20px rgba(232,121,249,.24)}.pdf-progress{width:min(360px,100%);display:flex;align-items:center;gap:var(--space-2);color:var(--color-text-muted);font-size:.72rem;font-weight:500;letter-spacing:.01em}.pdf-progress__text{white-space:nowrap;color:#f8fafcc2}.pdf-progress__track{flex:1;min-width:70px;height:4px;border-radius:var(--radius-full);overflow:hidden;background:#94a3b847}.pdf-progress__fill{display:block;width:0%;height:100%;border-radius:var(--radius-full);background:linear-gradient(90deg,#7c3aedf2,#e879f9f2);transition:width var(--duration-normal) var(--ease-out);box-shadow:0 0 12px #e879f966}@media(max-width:1200px){.pdf-progress{width:min(280px,100%)}}@media(max-width:900px){.pdf-progress{width:auto}.pdf-progress__track{display:none}}.spinner{width:24px;height:24px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:var(--radius-full);animation:spin .8s linear infinite}[data-theme=dark] .spinner{border-top-color:var(--color-accent)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes typing{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-4px)}}@keyframes highlight-pulse{0%,to{opacity:1}50%{opacity:.5}}.highlight-overlay--active{animation:highlight-pulse .5s ease-out 3;box-shadow:0 0 0 3px var(--color-primary);border-radius:var(--radius-sm)}[data-theme=dark] .highlight-overlay--active{box-shadow:0 0 0 3px var(--color-accent)}.uploader__recent-item--unavailable{opacity:.6;cursor:not-allowed}.uploader__recent-item--unavailable:hover{transform:none;border-color:var(--color-border)}.uploader__recent-badge{display:inline-block;margin-left:var(--space-2);padding:var(--space-1) var(--space-2);font-size:var(--text-xs);font-weight:500;color:var(--color-warning);background:#eab3081a;border-radius:var(--radius-sm)}.page-controls__btn--active{color:var(--color-primary);background:var(--color-primary-ghost);border-color:var(--color-primary)}[data-theme=dark] .page-controls__btn--active{color:var(--color-accent);background:var(--color-accent-ghost);border-color:var(--color-accent)}.page-controls__btn--active svg{fill:currentColor;stroke:currentColor}.reader--immersive .reader__header{position:fixed;top:0;left:0;right:0;z-index:100;transform:translateY(0);transition:transform var(--duration-normal) var(--ease-out)}.reader--immersive .reader__header--hidden{transform:translateY(-100%)}.reader--immersive .reader__sidebar,.reader--immersive .reader__chat{position:fixed;top:56px;bottom:0;z-index:50;box-shadow:var(--shadow-xl)}.reader--immersive .reader__sidebar{left:0;transform:translate(-100%);transition:transform var(--duration-normal) var(--ease-out)}.reader--immersive .reader__sidebar:not(.reader__sidebar--collapsed){transform:translate(0)}.reader--immersive .reader__chat{right:0;transform:translate(100%);transition:transform var(--duration-normal) var(--ease-out)}.reader--immersive .reader__chat:not(.reader__chat--collapsed){transform:translate(0)}.reader--immersive .reader__viewer{padding:var(--space-2);grid-column:1/-1;padding-top:calc(56px + var(--space-2))}.reader__overlay{position:fixed;inset:0;background:#00000080;opacity:0;pointer-events:none;transition:opacity var(--duration-normal);z-index:40}.reader__overlay--visible{opacity:1;pointer-events:auto}.library__tabs{display:flex;gap:var(--space-2);margin-bottom:var(--space-6);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.library__tab{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:500;color:var(--color-text-muted);background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration-fast)}.library__tab:hover{color:var(--color-text);background:var(--color-surface-hover)}.library__tab--active{color:var(--color-primary);background:var(--color-primary-ghost)}[data-theme=dark] .library__tab--active{color:var(--color-accent);background:var(--color-accent-ghost)}.library__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--space-4)}.library__grid--favorites{grid-template-columns:1fr;gap:var(--space-3)}.library__empty{text-align:center;padding:var(--space-12);color:var(--color-text-muted)}.library__empty svg{width:48px;height:48px;margin-bottom:var(--space-4);opacity:.5}.library__favorite-book{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-muted);overflow:hidden}.library__favorite-book--unavailable{opacity:.7}.library__favorite-book-header{width:100%;border:0;border-radius:0;text-align:left;margin-bottom:0}.library__favorite-pages{padding:0 var(--space-3) var(--space-3)}.library__favorite-pages summary{padding:var(--space-1) var(--space-1) var(--space-2);font-size:var(--text-xs);font-weight:600;color:var(--color-text-muted);cursor:pointer;user-select:none;list-style:none}.library__favorite-pages summary::-webkit-details-marker{display:none}.library__favorite-page-list{display:flex;flex-wrap:wrap;gap:var(--space-2);padding-top:var(--space-1)}.library__favorite-page-chip{padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-weight:600;color:var(--color-primary);background:var(--color-primary-ghost);border:1px solid var(--color-border);border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.library__favorite-page-chip:hover:not(:disabled){border-color:var(--color-primary);transform:translateY(-1px)}.library__favorite-page-chip:disabled{opacity:.55;cursor:not-allowed}.library__book-card{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-muted);overflow:hidden}.library__book-card--unavailable{opacity:.7}.library__book-card .uploader__recent-item{margin-bottom:0;border:0;border-radius:0;background:transparent}.library__resume-row{padding:var(--space-2) var(--space-3) var(--space-3)}.library__resume-pill{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-weight:600;letter-spacing:.01em;color:var(--color-primary);background:linear-gradient(135deg,var(--color-primary-ghost),rgba(255,255,255,.06));border:1px solid color-mix(in srgb,var(--color-primary) 35%,var(--color-border));border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.library__resume-pill:hover:not(:disabled){transform:translateY(-1px);border-color:var(--color-primary);box-shadow:0 8px 16px #0000002e}.library__resume-pill:disabled{opacity:.5;cursor:not-allowed}[data-theme=dark] .library__resume-pill{color:var(--color-accent);border-color:color-mix(in srgb,var(--color-accent) 35%,var(--color-border));background:linear-gradient(135deg,var(--color-accent-ghost),rgba(255,255,255,.03))}#chat-input,textarea.chat__input{outline:none!important;box-shadow:none!important;resize:none!important;overflow:hidden;-webkit-appearance:none;-moz-appearance:none;appearance:none}#chat-input::-webkit-resizer,textarea.chat__input::-webkit-resizer{display:none}#chat-input::-webkit-scrollbar,textarea.chat__input::-webkit-scrollbar{display:none}