/* Display-only paper tint: the source canvas stays readable and exports stay untouched. */
.reading-enhanced .pdf-page{background:var(--reading-paper,#fff)}
.reading-enhanced .pdf-page canvas{filter:brightness(var(--reading-brightness,1))!important}
.reading-enhanced[data-paper=sepia] .pdf-page::after,.reading-enhanced[data-paper=antique] .pdf-page::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:var(--reading-paper);mix-blend-mode:multiply}
.reading-enhanced[data-paper=antique] #scroll{background:#30291f}
.reading-enhanced[data-paper=sepia] #scroll{background:#2a251d}
.reading-enhanced[data-paper=dark] .pdf-page canvas{filter:invert(1) hue-rotate(180deg) brightness(var(--reading-brightness,1))!important}
.reading-enhanced[data-paper=dark] .pdf-page{background:#000}
.reading-enhanced.reading-original-colors .pdf-page{background:#fff}
.reading-enhanced.reading-original-colors .pdf-page canvas{filter:none!important}
.reading-enhanced.reading-original-colors .pdf-page::after{display:none}
.reading-enhanced.reading-focus .toolbar{min-height:36px;padding-top:3px;padding-bottom:3px}
.reading-enhanced.reading-focus .toolbar>.brand,.reading-enhanced.reading-focus .document-title,.reading-enhanced.reading-focus #renderStats{display:none}
.reading-control{position:relative;display:flex;align-items:center;flex:0 0 auto}
.reading-toggle{width:30px;flex:0 0 auto}
.reading-toggle.active{color:var(--gold);border-color:#736039;background:#2c261b}
.reading-toggle svg{width:17px;height:17px}
.reading-panel{position:fixed;top:54px;right:12px;z-index:30;width:min(305px,calc(100vw - 24px));padding:13px;background:#211f1b;color:#f4ead6;border:1px solid #6b5836;border-radius:10px;box-shadow:0 12px 35px #0007;font:12px 'Segoe UI',Arial,sans-serif}
.reading-panel[hidden]{display:none}
.reading-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.reading-heading strong{font-size:13px}
.reading-heading button{width:26px;height:26px;padding:0;border-color:transparent;background:transparent;font-size:21px;font-weight:300;color:#cabd9f}
.reading-theme-label{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.reading-theme-label select{max-width:175px;color:#f4ead6;background:#161512;border-color:#4f4635}
.reading-slider-label{display:block;margin:13px 0}
.reading-slider-label>span{display:flex;justify-content:space-between;gap:8px;margin-bottom:9px}
.reading-slider-label output{font-variant-numeric:tabular-nums;color:#dbb76e}
.reading-slider-label input{width:100%;height:6px;margin:4px 0;accent-color:#d9b165;cursor:pointer;appearance:auto}
.reading-slider-label input:disabled{opacity:.35;cursor:default}
.reading-check{display:flex;align-items:center;gap:8px;margin:13px 0;line-height:1.5;cursor:pointer}
.reading-check input{width:14px;height:14px;flex:0 0 auto;accent-color:#d9b165}
.reading-panel p{margin:11px 0;color:#aea38c;line-height:1.6;font-size:11px}
.reading-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #41392b;padding-top:11px}
.reading-actions button{padding:4px 9px;background:#29251e;border-color:#5d4b2e;color:#ecdbb7}
.reading-actions span{font-size:10px;color:#afa38a}
.reading-panel input:focus-visible,.reading-panel select:focus-visible,.reading-panel button:focus-visible{outline:2px solid #e1b96d;outline-offset:3px}
.embedded .reading-panel{top:42px}
@media(max-height:480px){.reading-panel{max-height:calc(100vh - 65px);overflow:auto}}
@media(max-width:700px){.reading-panel{top:47px}}