.pdf-reader-layout{display:flex;flex:1;min-width:0;min-height:0;overflow:hidden;width:100%}
.pdf-reader-chat-pane{display:flex;flex:1;flex-direction:column;position:relative;min-width:0;min-height:0}
.pdf-reader-pane{display:flex;flex-direction:column;flex:0 0 50%;width:50%;min-width:0;min-height:0;border-right:1px solid var(--line);background:var(--panel)}
.pdf-reader-heading{display:flex;align-items:center;gap:10px;min-height:59px;padding:10px 15px;border-bottom:1px solid var(--line);background:var(--bg)}
.pdf-reader-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:600}
.pdf-reader-close{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;font-size:23px}
.pdf-reader-close:hover,.pdf-reader-toolbar button:hover,.pdf-reader-selection button:hover{background:var(--soft)}
.pdf-reader-toolbar{display:flex;align-items:center;gap:4px;flex-wrap:wrap;padding:8px 11px;border-bottom:1px solid var(--line);background:var(--bg);font-size:11px}
.pdf-reader-toolbar button{height:33px;min-width:31px;border-radius:7px;padding:0 8px;white-space:nowrap}
.pdf-reader-toolbar input{width:50px;min-width:0;text-align:center;padding:6px 3px;border-radius:7px;font-size:12px;appearance:textfield;-moz-appearance:textfield}
.pdf-reader-toolbar input::-webkit-inner-spin-button,.pdf-reader-toolbar input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
.pdf-reader-page-count{white-space:nowrap;padding-right:2px;color:var(--muted);font-variant-numeric:tabular-nums}
.pdf-reader-zoom-label{white-space:nowrap;min-width:32px;text-align:center;color:var(--muted);font-size:10px}
.pdf-reader-original{margin-left:auto;padding:8px 4px;text-decoration:none;white-space:nowrap;font-size:10px}
.pdf-reader-viewport{flex:1;min-height:0;min-width:0;overflow:auto;overscroll-behavior:contain;position:relative;padding:16px;scrollbar-gutter:stable}
.pdf-reader-page{position:relative;margin:0 auto;background:#fff;box-shadow:0 3px 16px #0002;color:#000;overflow:hidden;box-sizing:content-box}
.pdf-reader-page canvas{display:block}
.pdf-reader-status{padding:12px 15px;font-size:12px;line-height:1.7;background:var(--soft);color:var(--muted)}
.pdf-reader-status.error{color:var(--danger);background:var(--bg)}
.pdf-reader-selection{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:var(--paper);border-top:1px solid var(--line);padding:8px 12px;font-size:11px}
.pdf-reader-selection span{flex:1;min-width:100px;color:var(--muted)}
.pdf-reader-selection button{padding:8px 10px;border-radius:8px;font-size:11px;background:var(--soft)}
.pdf-reader-hint{padding:8px 13px max(8px,env(safe-area-inset-bottom));font-size:10px;line-height:1.7;color:var(--muted);border-top:1px solid var(--line);background:var(--bg)}
.pdf-reader-tabs{display:none}
.pdf-reading .pdf-reader-chat-pane .topbar{height:59px;min-height:59px;padding:10px 18px;gap:7px}
.pdf-reading .pdf-reader-chat-pane .composer-wrap{padding-left:15px;padding-right:15px}
.pdf-reading .pdf-reader-chat-pane .messages{padding-left:20px;padding-right:20px}
.pdf-reading .pdf-reader-chat-pane .welcome{padding-left:18px;padding-right:18px}
.pdf-reading .pdf-reader-chat-pane .welcome h2{font-size:27px}
.pdf-reading .pdf-reader-chat-pane .suggestions{grid-template-columns:1fr;margin-top:24px;gap:8px}
.pdf-reading .pdf-reader-chat-pane .suggestions button{padding:13px 16px;gap:5px}
.pdf-reading .pdf-reader-chat-pane .suggestion-icon{display:none}
.pdf-reading .pdf-reader-chat-pane .suggestions i{top:17px}
.pdf-reading .pdf-reader-chat-pane .composer-tools select{max-width:115px}
/* PDF.js text layer: invisible glyphs exactly overlay the rendered page. */
.pdf-reader-text-layer{color-scheme:only light;position:absolute;inset:0;overflow:clip;opacity:1;line-height:1;letter-spacing:normal;word-spacing:normal;text-align:initial;text-size-adjust:none;-webkit-text-size-adjust:none;forced-color-adjust:none;transform-origin:0 0;z-index:1;user-select:text;-webkit-user-select:text;--min-font-size:1;--text-scale-factor:calc(var(--total-scale-factor) * var(--min-font-size));--min-font-size-inv:calc(1 / var(--min-font-size))}
.pdf-reader-text-layer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;transform-origin:0 0}
.pdf-reader-text-layer>:not(.markedContent),.pdf-reader-text-layer .markedContent span:not(.markedContent){z-index:1;--font-height:0;font-size:calc(var(--text-scale-factor) * var(--font-height));--scale-x:1;--rotate:0deg;transform:rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv))}
.pdf-reader-text-layer .markedContent{display:contents}
.pdf-reader-text-layer span[role=img]{user-select:none;-webkit-user-select:none;cursor:default}
.pdf-reader-text-layer ::selection{background:rgba(66,124,220,.28);color:transparent}
.pdf-reader-text-layer br::selection{background:transparent}
@media(min-width:761px) and (max-width:1199px){
  .pdf-reading .sidebar{position:fixed;top:0;bottom:0;left:0;width:260px;min-width:260px;z-index:5;transform:translateX(-100%);transition:transform .2s}
  .pdf-reading .sidebar.open{transform:translateX(0)}
  .pdf-reading .topbar .mobile-only{display:inline-grid}
}
@media(max-width:760px){
  .pdf-reader-tabs{display:flex;gap:5px;padding:7px 12px;border-bottom:1px solid var(--line);background:var(--bg);min-height:48px;padding-top:max(7px,env(safe-area-inset-top))}
  .pdf-reader-tabs button{flex:1;border-radius:8px;padding:9px 12px;font-size:12px;color:var(--muted)}
  .pdf-reader-tabs button[aria-selected=true]{background:var(--soft);color:var(--ink);font-weight:600}
  .pdf-reader-pane{flex:1;width:100%;border-right:0}
  .pdf-reading .pdf-reader-chat-pane{display:none}
  .pdf-reading .pdf-reader-show-chat .pdf-reader-chat-pane{display:flex}
  .pdf-reading .pdf-reader-show-chat .pdf-reader-pane{display:none}
  .pdf-reader-heading{min-height:48px;padding:6px 13px}
  .pdf-reader-toolbar{padding:7px 8px;gap:2px}
  .pdf-reader-toolbar button{padding-left:7px;padding-right:7px}
  .pdf-reader-toolbar input{width:42px;font-size:16px;padding-top:5px;padding-bottom:5px}
  .pdf-reader-original{font-size:10px;padding-left:3px;padding-right:3px}
  .pdf-reading .pdf-reader-chat-pane .topbar{min-height:56px;height:56px;padding-left:12px;padding-right:12px}
  .pdf-reading .pdf-reader-chat-pane .composer-wrap{padding-left:12px;padding-right:12px}
  .pdf-reading .pdf-reader-chat-pane .messages{padding-left:18px;padding-right:18px}
  .pdf-reader-hint{font-size:9px}
}