:root{
    --bg-1:#e8eaf6;--bg-2:#f5f5f7;--bg-3:#fce4ec;
    --glass-bg:rgba(255,255,255,.55);--glass-bg-strong:rgba(255,255,255,.78);
    --glass-border:rgba(255,255,255,.75);
    --glass-shadow:0 8px 32px rgba(31,38,135,.08);
    --glass-shadow-lg:0 20px 60px rgba(31,38,135,.12);
    --text-primary:#1d1d1f;--text-secondary:#6e6e73;--text-tertiary:#86868b;
    --accent:#0071e3;--accent-hover:#0077ed;--accent-soft:rgba(0,113,227,.12);
    --hover-bg:rgba(0,0,0,.05);--hover-bg-strong:rgba(0,0,0,.09);
    --hover-accent:rgba(0,113,227,.1);
    --border-subtle:rgba(0,0,0,.06);--input-bg:rgba(255,255,255,.6);
    --divider:rgba(0,0,0,.08);--danger:#ff3b30;--warning:#ff9500;--success:#34c759;
  }
  body.dark{
    --bg-1:#0a0a0f;--bg-2:#1a1a2e;--bg-3:#1d1d1f;
    --glass-bg:rgba(30,30,32,.55);--glass-bg-strong:rgba(30,30,32,.78);
    --glass-border:rgba(255,255,255,.12);
    --glass-shadow:0 8px 32px rgba(0,0,0,.35);--glass-shadow-lg:0 20px 60px rgba(0,0,0,.5);
    --text-primary:#f5f5f7;--text-secondary:#a1a1a6;--text-tertiary:#86868b;
    --accent:#0a84ff;--accent-hover:#409cff;--accent-soft:rgba(10,132,255,.18);
    --hover-bg:rgba(255,255,255,.06);--hover-bg-strong:rgba(255,255,255,.1);
    --hover-accent:rgba(10,132,255,.18);
    --border-subtle:rgba(255,255,255,.08);--input-bg:rgba(255,255,255,.06);
    --divider:rgba(255,255,255,.1);
  }
  *{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
  html,body{height:100%}
  body{
    font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',Roboto,'Helvetica Neue','Microsoft YaHei','PingFang SC','Noto Sans CJK SC',Arial,sans-serif;
    overflow:hidden;color:var(--text-primary);font-size:14px;
    -webkit-font-smoothing:antialiased;background:var(--bg-2);
    background-image:radial-gradient(circle at 15% 20%,var(--bg-1) 0%,transparent 45%),
      radial-gradient(circle at 85% 80%,var(--bg-3) 0%,transparent 45%),
      linear-gradient(135deg,var(--bg-2) 0%,var(--bg-2) 100%);
    background-attachment:fixed;transition:background-color .3s,color .3s;
  }
  body::before{content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
    background:radial-gradient(circle at 20% 30%,rgba(120,160,255,.08),transparent 40%),
      radial-gradient(circle at 80% 70%,rgba(255,140,200,.06),transparent 40%);}
  body > *{position:relative;z-index:1}
  button,input,textarea{font-family:inherit;color:inherit}
  .glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(24px) saturate(180%);
    backdrop-filter:blur(24px) saturate(180%);border:1px solid var(--glass-border);
    box-shadow:var(--glass-shadow)}
  .glass-strong{background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(30px) saturate(200%);
    backdrop-filter:blur(30px) saturate(200%);border:1px solid var(--glass-border);
    box-shadow:var(--glass-shadow-lg)}

  /* ============ TOOLBAR ============ */
  #toolbar{position:relative;z-index:20;margin:12px 14px 0;padding:8px 12px;
    border-radius:22px;display:flex;align-items:center;justify-content:space-between;
    gap:6px;flex-wrap:wrap;flex-shrink:0;min-height:54px}
  body:not(.has-pdf) #toolbar{display:none}
  body.has-pdf #toolbar{animation:slideDown .5s cubic-bezier(.16,1,.3,1)}
  @keyframes slideDown{from{opacity:0;transform:translateY(-24px)}to{opacity:1;transform:translateY(0)}}
  .tb-group{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
  .tb-group.center{flex:1;justify-content:center}
  .tb-sep{width:1px;height:22px;background:var(--divider);margin:0 4px}
  .ibtn{background:transparent;border:none;color:var(--text-primary);
    width:38px;height:38px;border-radius:11px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;
    transition:background .18s,transform .15s;position:relative;flex-shrink:0}
  .ibtn:hover:not(:disabled){background:var(--hover-bg)}
  .ibtn:active:not(:disabled){transform:scale(.94);background:var(--hover-bg-strong)}
  .ibtn:disabled{opacity:.28;cursor:not-allowed}
  .ibtn.active{background:var(--accent);color:#fff;
    box-shadow:0 4px 14px rgba(0,113,227,.35)}
  body.dark .ibtn.active{box-shadow:0 4px 14px rgba(10,132,255,.4)}
  .ibtn.danger{color:var(--danger)}
  .ibtn.danger:hover:not(:disabled){background:rgba(255,59,48,.12)}
  .ibtn svg{width:19px;height:19px;display:block;stroke-linecap:round;stroke-linejoin:round}
  .ibtn[data-tip]:hover:not(:disabled)::after{content:attr(data-tip);
    position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);
    background:var(--text-primary);color:var(--bg-2);font-size:11px;font-weight:500;
    padding:5px 10px;border-radius:8px;white-space:nowrap;pointer-events:none;
    z-index:300;box-shadow:0 4px 14px rgba(0,0,0,.18)}
  #file-name{font-size:13px;font-weight:500;max-width:180px;white-space:nowrap;
    overflow:hidden;text-overflow:ellipsis;color:var(--text-primary);padding:0 8px}
  #page-indicator{display:inline-flex;align-items:center;gap:4px;font-size:12px;
    font-weight:500;background:var(--hover-bg);padding:5px 10px;border-radius:10px;
    white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--text-primary);
    user-select:none;height:32px}
  #page-input{background:transparent;border:none;color:inherit;font:inherit;
    font-weight:600;width:36px;text-align:right;padding:2px 4px;outline:none;
    border-radius:5px;cursor:pointer}
  #page-input:hover{background:var(--hover-bg)}
  #page-input:focus{background:var(--hover-bg);cursor:text;box-shadow:0 0 0 2px var(--accent)}
  #page-input:disabled{cursor:default;opacity:.5}
  .zoom-group{display:flex;align-items:center;background:var(--hover-bg);
    border-radius:12px;padding:3px;gap:0}
  .zoom-group .ibtn{width:30px;height:30px;border-radius:9px}
  .zoom-group .ibtn svg{width:15px;height:15px}
  #zoom-level{background:transparent;border:none;color:var(--text-primary);
    font-size:12px;font-weight:600;width:54px;text-align:center;
    font-variant-numeric:tabular-nums;padding:5px;border-radius:6px;outline:none;
    cursor:pointer}
  #zoom-level:hover{background:var(--hover-bg)}
  #zoom-level:focus{background:var(--hover-bg);cursor:text;box-shadow:0 0 0 2px var(--accent)}
  #zoom-level:disabled{cursor:default;opacity:.5}
  #search-toggle{position:relative}
  #search-popup{position:absolute;top:calc(100% + 10px);left:50%;
    transform:translateX(-50%) translateY(-8px) scale(.96);min-width:340px;
    padding:10px;border-radius:16px;display:flex;align-items:center;gap:6px;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s,transform .2s cubic-bezier(.16,1,.3,1),visibility .2s;z-index:1000}
  #search-popup.open{opacity:1;visibility:visible;pointer-events:auto;
    transform:translateX(-50%) translateY(0) scale(1)}
  #search-popup .sp-input-wrap{flex:1;display:flex;align-items:center;gap:8px;
    background:var(--input-bg);border:1px solid var(--border-subtle);
    border-radius:11px;padding:0 12px;height:38px;
    transition:border-color .15s,box-shadow .15s}
  #search-popup .sp-input-wrap:focus-within{border-color:var(--accent);
    box-shadow:0 0 0 3px var(--accent-soft)}
  #search-popup .sp-input-wrap svg{width:15px;height:15px;color:var(--text-tertiary);flex-shrink:0}
  #search-input{background:transparent;border:none;color:var(--text-primary);
    font-size:13px;outline:none;width:100%;height:100%}
  #search-input::placeholder{color:var(--text-tertiary)}
  #search-count{font-size:11px;font-weight:600;color:var(--text-secondary);
    padding:0 6px;min-width:48px;text-align:center;
    font-variant-numeric:tabular-nums;white-space:nowrap}
  #search-popup .sp-btn{background:transparent;border:none;color:var(--text-primary);
    width:32px;height:32px;border-radius:9px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;transition:background .15s}
  #search-popup .sp-btn:hover:not(:disabled){background:var(--hover-bg)}
  #search-popup .sp-btn:disabled{opacity:.3;cursor:not-allowed}
  #search-popup .sp-btn svg{width:16px;height:16px}
  .split-btn{display:inline-flex;align-items:center;position:relative}
  .split-btn > .ibtn:first-child{border-radius:11px 3px 3px 11px;padding-right:4px}
  .split-btn > .chevron{width:18px;height:38px;border-radius:3px 11px 11px 3px;
    background:transparent;border:none;color:var(--text-primary);cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;
    transition:background .15s;position:relative}
  .split-btn > .chevron:hover:not(:disabled){background:var(--hover-bg)}
  .split-btn > .chevron:disabled{opacity:.28;cursor:not-allowed}
  .split-btn > .chevron svg{width:11px;height:11px}
  .split-btn > .ibtn.active + .chevron{background:var(--accent);color:#fff;
    box-shadow:0 4px 14px rgba(0,113,227,.35)}

  /* ============ MAIN ============ */
  #main{display:flex;flex:1;overflow:hidden;position:relative;
    height:calc(100vh - 78px);padding:12px 14px 14px;gap:12px}
  body:not(.has-pdf) #main{height:100vh;padding:0;gap:0}

  /* ============ SIDEBAR ============ */
  #sidebar{width:340px;flex-shrink:0;border-radius:22px;display:flex;flex-direction:row;
    overflow:hidden;
    transition:width .3s cubic-bezier(.16,1,.3,1),opacity .25s ease}
  #sidebar.collapsed{width:0;border:none;padding:0;box-shadow:none;
    background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none}
  /* HIDE side-tabs AND content when collapsed */
  #sidebar.collapsed .side-tabs,
  #sidebar.collapsed .side-content{display:none}
  body:not(.has-pdf) #sidebar{display:none}
  .side-tabs{width:60px;flex-shrink:0;display:flex;flex-direction:column;
    align-items:center;padding:10px 0;gap:4px;
    border-right:1px solid var(--border-subtle)}
  .side-tab{width:44px;height:44px;background:transparent;border:none;
    color:var(--text-secondary);cursor:pointer;
    display:flex;align-items:center;justify-content:center;border-radius:12px;
    transition:background .18s,color .18s,transform .15s;position:relative}
  .side-tab:hover:not(:disabled){color:var(--accent);background:var(--hover-accent)}
  .side-tab:active:not(:disabled){transform:scale(.92)}
  .side-tab:disabled{opacity:.28;cursor:not-allowed}
  .side-tab.hidden{display:none}
  .side-tab.active{color:#fff;background:var(--accent);
    box-shadow:0 4px 14px rgba(0,113,227,.35)}
  body.dark .side-tab.active{box-shadow:0 4px 14px rgba(10,132,255,.4)}
  .side-tab svg{width:20px;height:20px;display:block}
  .side-tab[data-tip]:hover:not(:disabled)::after{content:attr(data-tip);
    position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);
    background:var(--text-primary);color:var(--bg-2);font-size:11px;font-weight:500;
    padding:5px 10px;border-radius:8px;white-space:nowrap;pointer-events:none;
    z-index:500;box-shadow:0 4px 14px rgba(0,0,0,.2)}
  .side-content{flex:1;overflow-y:auto;overflow-x:hidden;min-width:0;
    scrollbar-width:thin;scrollbar-color:var(--border-subtle) transparent}
  .side-content::-webkit-scrollbar{width:6px}
  .side-content::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:3px}
  .side-pane{display:none;padding:14px;flex-direction:column;gap:10px;flex:1}
  .side-pane.active{display:flex}
  #outline-container{padding:10px;gap:0}
  .outline-item{padding:7px 10px;color:var(--text-secondary);font-size:13px;
    cursor:pointer;border-radius:9px;line-height:1.4;display:flex;align-items:center;
    gap:4px;transition:background .15s,color .15s;user-select:none}
  .outline-item:hover{background:var(--hover-bg);color:var(--text-primary)}
  .outline-toggle{width:20px;height:20px;flex-shrink:0;background:transparent;
    border:none;color:inherit;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:5px;padding:0;transition:transform .18s}
  .outline-toggle:hover{background:var(--hover-bg)}
  .outline-toggle.expanded{transform:rotate(90deg)}
  .outline-toggle svg{width:11px;height:11px;display:block}
  .outline-toggle.empty{visibility:hidden}
  .outline-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .outline-children{display:none;flex-direction:column}
  .outline-children.expanded{display:flex}
  .thumbnail-item{display:flex;flex-direction:column;align-items:center;gap:8px;
    cursor:pointer;padding:8px;border-radius:12px;transition:background .18s;
    position:relative;margin-bottom:4px;contain:content;
    content-visibility:auto;contain-intrinsic-size:auto 220px}
  .thumbnail-item:hover{background:var(--hover-bg)}
  .thumbnail-item .thumb-placeholder{width:100%;aspect-ratio:.77;border-radius:8px;
    background:var(--hover-bg);display:flex;align-items:center;justify-content:center;
    color:var(--text-tertiary);font-size:14px;font-weight:600;
    transition:opacity .2s,box-shadow .2s}
  .thumbnail-item canvas{border-radius:8px;max-width:100%;height:auto;background:#fff;
    box-shadow:0 1px 3px rgba(0,0,0,.15);
    transition:box-shadow .18s,opacity .18s;display:block}
  .thumbnail-item .thumb-label{font-size:11px;color:var(--text-secondary);
    font-weight:500;transition:color .15s}
  .thumbnail-item:not(.active) canvas,
  .thumbnail-item:not(.active) .thumb-placeholder{opacity:.5}
  body.dark .thumbnail-item:not(.active) canvas,
  body.dark .thumbnail-item:not(.active) .thumb-placeholder{opacity:.55}
  .thumbnail-item:not(.active):hover canvas,
  .thumbnail-item:not(.active):hover .thumb-placeholder{opacity:.85}
  .thumbnail-item.active canvas,
  .thumbnail-item.active .thumb-placeholder{opacity:1;
    box-shadow:0 0 0 2.5px var(--accent),0 4px 12px rgba(0,113,227,.3)}
  .thumbnail-item.active .thumb-label{color:var(--accent);font-weight:600}
  .thumbnail-item .thumb-badge{position:absolute;top:10px;right:10px;
    background:var(--warning);color:#fff;font-size:9px;padding:2px 6px;
    border-radius:8px;font-weight:700;opacity:0;transition:opacity .18s;
    pointer-events:none;z-index:2;box-shadow:0 2px 6px rgba(0,0,0,.2)}
  .thumbnail-item.has-annot .thumb-badge{opacity:1}
  .bookmark-item{display:flex;align-items:center;gap:12px;padding:12px;
    background:var(--hover-bg);border:1px solid var(--border-subtle);
    border-radius:14px;cursor:pointer;transition:all .18s}
  .bookmark-item:hover{background:var(--accent-soft);
    border-color:rgba(0,113,227,.3);transform:translateY(-1px)}
  .bookmark-item .bm-icon{width:38px;height:38px;flex-shrink:0;display:flex;
    align-items:center;justify-content:center;background:var(--accent-soft);
    border-radius:11px;color:var(--accent)}
  .bookmark-item .bm-icon svg{width:19px;height:19px}
  .bookmark-item .bm-body{flex:1;min-width:0}
  .bookmark-item .bm-title{font-size:13px;color:var(--text-primary);font-weight:600;
    margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .bookmark-item .bm-page{font-size:11px;color:var(--accent);font-weight:500}
  .bookmark-item .bm-actions{display:flex;gap:4px;opacity:0;transition:opacity .18s}
  .bookmark-item:hover .bm-actions{opacity:1}
  .bookmark-item .bm-action{background:transparent;border:none;
    color:var(--text-tertiary);cursor:pointer;padding:6px;border-radius:8px;
    transition:all .15s}
  .bookmark-item .bm-action:hover{background:var(--hover-bg-strong);color:var(--text-primary)}
  .bookmark-item .bm-action svg{width:14px;height:14px;display:block}
  #notes-container{padding:0;gap:0}
  .notes-toolbar{display:none;align-items:center;justify-content:space-between;
    padding:12px 14px;border-bottom:1px solid var(--border-subtle);gap:8px;
    flex-shrink:0;position:sticky;top:0;z-index:2;background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
  .notes-toolbar.visible{display:flex}
  .notes-toolbar .nt-btn{background:var(--hover-bg);border:none;color:var(--text-primary);
    font-size:12px;font-weight:600;padding:7px 14px;border-radius:10px;
    cursor:pointer;transition:all .15s}
  .notes-toolbar .nt-btn:hover:not(:disabled){background:var(--hover-bg-strong)}
  .notes-toolbar .nt-btn:active:not(:disabled){transform:scale(.96)}
  .notes-toolbar .nt-btn.danger{color:var(--danger)}
  .notes-toolbar .nt-btn.danger:hover:not(:disabled){background:rgba(255,59,48,.12)}
  .notes-toolbar .nt-btn:disabled{opacity:.4;cursor:not-allowed}
  .notes-toolbar .nt-btn.primary{background:var(--accent);color:#fff;
    box-shadow:0 4px 12px rgba(0,113,227,.3)}
  .notes-toolbar .nt-btn.primary:hover{background:var(--accent-hover)}
  #notes-select-all-wrap{display:none;align-items:center;gap:6px;font-size:12px;
    font-weight:500;color:var(--text-secondary);cursor:pointer;user-select:none}
  #notes-select-all-wrap.visible{display:flex}
  #notes-select-all-wrap input{accent-color:var(--accent);cursor:pointer;width:15px;height:15px}
  #notes-list{padding:12px;display:flex;flex-direction:column;gap:10px}
  .note-item{background:var(--hover-bg);border:1px solid var(--border-subtle);
    border-radius:14px;padding:12px;transition:all .18s;display:flex;
    gap:10px;align-items:flex-start}
  .note-item:hover{background:var(--accent-soft);border-color:rgba(0,113,227,.25)}
  .note-item.selected{background:var(--accent-soft);border-color:rgba(0,113,227,.4)}
  .note-item .note-check{margin-top:3px;accent-color:var(--accent);
    cursor:pointer;flex-shrink:0;width:16px;height:16px;display:none}
  body.notes-selecting .note-item .note-check{display:block}
  .note-item .note-body{flex:1;min-width:0;cursor:pointer}
  .note-item .note-meta{display:flex;align-items:center;gap:5px;font-size:10px;
    color:var(--accent);font-weight:700;text-transform:uppercase;
    letter-spacing:.6px;margin-bottom:6px}
  .note-item .note-meta svg{width:11px;height:11px}
  .note-item .note-quote{font-size:11px;color:var(--text-secondary);font-style:italic;
    padding-left:10px;border-left:2px solid var(--border-subtle);margin-bottom:6px;
    line-height:1.5;white-space:pre-wrap;word-break:break-word;max-height:80px;overflow-y:auto}
  .note-item .note-text-content{font-size:12.5px;color:var(--text-primary);
    line-height:1.55;white-space:pre-wrap;word-break:break-word}
  .note-item .note-date{font-size:10px;color:var(--text-tertiary);margin-top:8px}
  .note-item .note-actions-mini{display:flex;gap:6px;margin-top:10px}
  body.notes-selecting .note-item .note-actions-mini{display:none}
  .note-item .note-mini-btn{background:transparent;border:1px solid var(--border-subtle);
    color:var(--text-primary);font-size:11px;font-weight:500;padding:4px 10px;
    border-radius:7px;cursor:pointer;transition:background .15s}
  .note-item .note-mini-btn:hover{background:var(--hover-bg-strong)}
  .note-item .note-mini-btn.danger{color:var(--danger);border-color:rgba(255,59,48,.3)}
  .note-item .note-mini-btn.danger:hover{background:rgba(255,59,48,.1)}

  /* ============ PDF CONTAINER ============ */
  #pdf-container{flex:1;overflow:auto;position:relative;border-radius:22px;
    display:block;padding:24px 20px;user-select:none;-webkit-user-select:none;
    scroll-behavior:auto;will-change:scroll-position;
    -webkit-overflow-scrolling:touch;transition:padding .3s;
    scrollbar-width:thin;scrollbar-color:var(--border-subtle) transparent;
    overscroll-behavior:contain}
  #pdf-container::-webkit-scrollbar{width:10px;height:10px}
  #pdf-container::-webkit-scrollbar-thumb{background:rgba(0,0,0,.15);
    border-radius:5px;border:2px solid transparent;background-clip:padding-box}
  body.dark #pdf-container::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);
    background-clip:padding-box}
  body:not(.has-pdf) #pdf-container{padding:0;border-radius:0;background:transparent}
  body.has-pdf #pdf-container{background:var(--glass-bg);
    -webkit-backdrop-filter:blur(24px) saturate(180%);
    backdrop-filter:blur(24px) saturate(180%);border:1px solid var(--glass-border);
    box-shadow:var(--glass-shadow);animation:fadeScaleIn .5s cubic-bezier(.16,1,.3,1)}
  @keyframes fadeScaleIn{from{opacity:0;transform:scale(.985)}to{opacity:1;transform:scale(1)}}
  #pages-container{display:flex;flex-direction:column;gap:20px;
    min-width:100%;width:max-content;margin:0 auto;align-items:center}
  .page-wrapper{position:relative;background:#fff;
    box-shadow:0 4px 20px rgba(0,0,0,.12),0 1px 4px rgba(0,0,0,.08);
    border-radius:6px;contain:layout style paint;
    content-visibility:auto;contain-intrinsic-size:auto 1000px;flex-shrink:0}
  body.dark .page-wrapper{box-shadow:0 4px 24px rgba(0,0,0,.4),0 1px 4px rgba(0,0,0,.3)}
  .page-wrapper.placeholder{background:var(--hover-bg)}
  .page-wrapper.placeholder::after{content:attr(data-page-number);
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
    font-size:32px;color:var(--text-tertiary);font-weight:600;pointer-events:none;opacity:.5}
  .page-wrapper.highlight-pulse{animation:pulse 1.5s ease}
  @keyframes pulse{0%{box-shadow:0 0 0 0 var(--accent),0 4px 20px rgba(0,0,0,.12)}
    100%{box-shadow:0 0 0 16px transparent,0 4px 20px rgba(0,0,0,.12)}}
  .page-wrapper canvas.pdf-canvas{position:absolute;top:0;left:0;z-index:1;display:block}
  .page-wrapper canvas.highlight-canvas{position:absolute;top:0;left:0;z-index:2;
    pointer-events:none;mix-blend-mode:multiply}
  .page-wrapper canvas.selection-canvas{position:absolute;top:0;left:0;z-index:3;pointer-events:none}
  .page-wrapper canvas.pen-canvas{position:absolute;top:0;left:0;z-index:4;pointer-events:none}
  .textLayer{position:absolute;inset:0;overflow:hidden;line-height:1;
    text-align:initial;text-size-adjust:none;forced-color-adjust:none;
    transform-origin:0 0;z-index:5;--scale-factor:1;--total-scale-factor:1;
    contain:strict;clip-path:inset(0);pointer-events:none;
    user-select:none;-webkit-user-select:none}
  .textLayer span,.textLayer br{color:transparent;position:absolute;white-space:pre;
    transform-origin:0% 0%;pointer-events:auto;user-select:text;
    -webkit-user-select:text;cursor:text}
  .textLayer ::selection{background:transparent}
  .textLayer br::selection{background:transparent}
  body.mode-draw #pdf-container,body.mode-draw .page-wrapper,
  body.mode-draw .textLayer span{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M18 2.5a2.5 2.5 0 0 1 3.5 3.5L8 19.5 2.5 21l1.5-5.5L17.5 2z' fill='%230071e3' stroke='white' stroke-width='1.3' stroke-linejoin='round'/%3E%3C/svg%3E") 3 21,crosshair!important}
  body.mode-highlight #pdf-container,body.mode-highlight .page-wrapper,
  body.mode-highlight .textLayer span{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M20 5l1.8 1.8L10.5 18H8v-2.5z' fill='%23FFEB3B' stroke='%23E65100' stroke-width='1.3' stroke-linejoin='round'/%3E%3Crect x='4' y='19' width='14' height='3' rx='1' fill='%23FFEB3B' stroke='%23E65100' stroke-width='1'/%3E%3C/svg%3E") 3 21,crosshair!important}
  body.mode-erase #pdf-container,body.mode-erase .page-wrapper,
  body.mode-erase .textLayer span{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M16 3l5 5-9 9H7v-5z' fill='%23ff3b30' stroke='white' stroke-width='1.2' stroke-linejoin='round'/%3E%3Cpath d='M7 17h10v3H7z' fill='%23ff3b30' stroke='white' stroke-width='1.2' stroke-linejoin='round'/%3E%3C/svg%3E") 3 21,cell!important}
  body.mode-draw .textLayer span,body.mode-erase .textLayer span{pointer-events:none;user-select:none}
  body.mode-draw .page-wrapper canvas.pen-canvas,
  body.mode-erase .page-wrapper canvas.pen-canvas{pointer-events:auto}
  body.touch-active #pdf-container{touch-action:none}
  body.touch-active .textLayer span{pointer-events:none}

  /* ============ POPOVERS ============ */
  .popover{position:fixed;background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(30px) saturate(200%);
    backdrop-filter:blur(30px) saturate(200%);border:1px solid var(--glass-border);
    border-radius:18px;padding:16px;box-shadow:var(--glass-shadow-lg);z-index:1000;
    display:none;opacity:0;transform:translateY(-8px) scale(.96);
    transition:opacity .22s,transform .22s cubic-bezier(.16,1,.3,1)}
  .popover.open{display:block;opacity:1;transform:translateY(0) scale(1)}
  .popover h4{font-size:11px;color:var(--text-tertiary);text-transform:uppercase;
    letter-spacing:.8px;font-weight:700;margin-bottom:12px}
  #pen-popover{min-width:320px}
  .pen-colors{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
  .pen-color{width:100%;aspect-ratio:1;border-radius:50%;border:3px solid transparent;
    cursor:pointer;padding:0;transition:transform .18s,border-color .18s}
  .pen-color:hover{transform:scale(1.12)}
  .pen-color.active{border-color:var(--text-primary);
    box-shadow:0 0 0 3px var(--hover-bg),0 4px 12px rgba(0,0,0,.2);transform:scale(1.06)}
  .pen-size-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
  .pen-size-header h4{margin-bottom:0}
  .pen-size-header .val-badge{background:var(--hover-bg);color:var(--accent);
    font-size:12px;font-weight:700;padding:4px 12px;border-radius:9px;
    font-variant-numeric:tabular-nums}
  #pen-size{width:100%;-webkit-appearance:none;appearance:none;height:6px;
    background:var(--hover-bg);border-radius:3px;outline:none;cursor:pointer}
  #pen-size::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;
    background:var(--accent);border-radius:50%;cursor:pointer;
    border:3px solid var(--glass-bg-strong);
    box-shadow:0 2px 8px rgba(0,113,227,.4)}
  #pen-preview{margin-top:14px;height:64px;background:var(--hover-bg);
    border-radius:12px;border:1px solid var(--border-subtle);display:flex;
    align-items:center;justify-content:center;padding:8px 14px;overflow:hidden}
  #pen-preview svg{width:100%;height:100%;display:block}
  #highlight-popover{min-width:260px}
  .hl-colors{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
  .hl-color{width:100%;aspect-ratio:1;border-radius:50%;border:3px solid transparent;
    cursor:pointer;padding:0;transition:transform .18s,border-color .18s}
  .hl-color:hover{transform:scale(1.12)}
  .hl-color.active{border-color:var(--text-primary);
    box-shadow:0 0 0 3px var(--hover-bg),0 4px 12px rgba(0,0,0,.2);transform:scale(1.06)}
  #sel-popup{position:fixed;background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(30px) saturate(200%);
    backdrop-filter:blur(30px) saturate(200%);border:1px solid var(--glass-border);
    border-radius:16px;padding:10px;display:flex;align-items:center;gap:8px;
    box-shadow:var(--glass-shadow-lg);z-index:1000;opacity:0;visibility:hidden;
    transform:translateY(8px) scale(.94);
    transition:opacity .2s,transform .2s cubic-bezier(.16,1,.3,1),visibility .2s;
    user-select:none;flex-wrap:wrap;max-width:calc(100vw - 32px)}
  #sel-popup.open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
  #sel-popup .popup-color{width:30px;height:30px;border-radius:50%;
    border:3px solid transparent;cursor:pointer;padding:0;
    transition:transform .15s,border-color .15s}
  #sel-popup .popup-color:hover{transform:scale(1.15);border-color:rgba(255,255,255,.7)}
  #sel-popup .popup-sep{width:1px;height:26px;background:var(--divider);margin:0 4px}
  #sel-popup .popup-ibtn{background:transparent;border:none;color:var(--text-primary);
    width:38px;height:38px;border-radius:11px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;transition:background .15s}
  #sel-popup .popup-ibtn:hover{background:var(--hover-bg)}
  #sel-popup .popup-ibtn.danger{color:var(--danger)}
  #sel-popup .popup-ibtn.danger:hover{background:rgba(255,59,48,.12)}
  #sel-popup .popup-ibtn svg{width:19px;height:19px}
  #note-popup{min-width:360px;max-width:480px}
  #note-popup .note-header{font-size:14px;color:var(--text-primary);font-weight:600;
    margin-bottom:12px;display:flex;align-items:center;gap:10px}
  #note-popup .note-header > svg{width:18px;height:18px;color:var(--warning);flex-shrink:0}
  #note-popup .note-header .note-title-text{flex:1}
  #note-popup .note-close{background:transparent;border:none;
    color:var(--text-tertiary);cursor:pointer;width:28px;height:28px;
    border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
    transition:background .15s}
  #note-popup .note-close:hover{background:var(--hover-bg);color:var(--text-primary)}
  #note-popup .note-close svg{width:16px;height:16px}
  #note-preview-text{background:var(--hover-bg);border:1px solid var(--border-subtle);
    color:var(--text-primary);padding:14px;border-radius:12px;font-size:13px;
    line-height:1.6;max-height:220px;overflow-y:auto;white-space:pre-wrap;
    word-break:break-word;min-height:50px}
  #note-text{width:100%;background:var(--hover-bg);border:1px solid var(--border-subtle);
    color:var(--text-primary);padding:12px 14px;border-radius:12px;font-size:13px;
    resize:vertical;min-height:120px;outline:none;font-family:inherit;
    line-height:1.6;max-height:260px;transition:border-color .15s,box-shadow .15s}
  #note-text:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
  #note-popup .note-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
  #note-popup .note-btn{padding:9px 18px;border-radius:11px;cursor:pointer;
    font-size:12.5px;font-weight:600;border:1px solid transparent;transition:all .15s}
  #note-popup .note-btn.cancel{background:transparent;
    border-color:var(--border-subtle);color:var(--text-primary)}
  #note-popup .note-btn.cancel:hover{background:var(--hover-bg)}
  #note-popup .note-btn.save,#note-popup .note-btn.edit{background:var(--accent);
    color:#fff;box-shadow:0 4px 12px rgba(0,113,227,.3)}
  #note-popup .note-btn.save:hover,#note-popup .note-btn.edit:hover{background:var(--accent-hover)}
  #note-popup .note-btn.del{background:transparent;color:var(--danger);
    border-color:rgba(255,59,48,.3);margin-right:auto}
  #note-popup .note-btn.del:hover{background:rgba(255,59,48,.1)}
  #confirm-popup{min-width:280px}
  #confirm-popup .cp-msg{font-size:13.5px;color:var(--text-primary);
    margin-bottom:14px;line-height:1.55}
  #confirm-popup .cp-actions{display:flex;gap:8px;justify-content:flex-end}
  #confirm-popup .cp-btn{padding:9px 18px;border-radius:11px;cursor:pointer;
    font-size:12.5px;font-weight:600;border:1px solid transparent;transition:background .15s}
  #confirm-popup .cp-btn.cancel{background:transparent;
    border-color:var(--border-subtle);color:var(--text-primary)}
  #confirm-popup .cp-btn.cancel:hover{background:var(--hover-bg)}
  #confirm-popup .cp-btn.danger{background:var(--danger);color:#fff;border-color:var(--danger)}
  #bookmark-prompt{min-width:360px;padding:0;overflow:hidden}
  #bookmark-prompt .bp-header{display:flex;align-items:center;gap:12px;
    padding:16px 18px;border-bottom:1px solid var(--border-subtle)}
  #bookmark-prompt .bp-header .bp-icon{width:38px;height:38px;flex-shrink:0;
    display:flex;align-items:center;justify-content:center;
    background:var(--accent-soft);border-radius:11px;color:var(--accent)}
  #bookmark-prompt .bp-header .bp-icon svg{width:19px;height:19px}
  #bookmark-prompt .bp-header .bp-title{flex:1;font-size:14px;font-weight:700}
  #bookmark-prompt .bp-header .bp-subtitle{font-size:11.5px;
    color:var(--text-tertiary);margin-top:3px;font-weight:500}
  #bookmark-prompt .bp-close{background:transparent;border:none;
    color:var(--text-tertiary);cursor:pointer;width:30px;height:30px;
    border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
    transition:background .15s;flex-shrink:0}
  #bookmark-prompt .bp-close:hover{background:var(--hover-bg);color:var(--text-primary)}
  #bookmark-prompt .bp-close svg{width:16px;height:16px}
  #bookmark-prompt .bp-body{padding:16px 18px}
  #bookmark-prompt .bp-label{display:block;font-size:11px;color:var(--text-tertiary);
    margin-bottom:8px;font-weight:700;text-transform:uppercase;letter-spacing:.6px}
  #bookmark-label{width:100%;background:var(--hover-bg);
    border:1px solid var(--border-subtle);color:var(--text-primary);
    padding:11px 14px;border-radius:11px;font-size:13px;outline:none;
    transition:border-color .15s,box-shadow .15s}
  #bookmark-label:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
  #bookmark-prompt .bp-actions{display:flex;gap:8px;padding:14px 18px;
    border-top:1px solid var(--border-subtle)}
  #bookmark-prompt .bp-btn{padding:9px 18px;border-radius:11px;cursor:pointer;
    font-size:13px;font-weight:600;border:1px solid transparent;
    transition:all .15s;display:inline-flex;align-items:center;gap:7px}
  #bookmark-prompt .bp-btn svg{width:15px;height:15px}
  #bookmark-prompt .bp-btn.danger{background:transparent;color:var(--danger);
    border-color:rgba(255,59,48,.3);margin-right:auto}
  #bookmark-prompt .bp-btn.cancel{background:transparent;
    border-color:var(--border-subtle);color:var(--text-primary)}
  #bookmark-prompt .bp-btn.cancel:hover{background:var(--hover-bg)}
  #bookmark-prompt .bp-btn.primary{background:var(--accent);color:#fff;
    box-shadow:0 4px 12px rgba(0,113,227,.3)}
  #bookmark-prompt .bp-btn.primary:hover{background:var(--accent-hover);transform:translateY(-1px)}

  /* ============ LOADING (REDESIGNED) ============ */
  #loading{position:fixed;inset:0;display:none;align-items:center;justify-content:center;
    z-index:9000;background:rgba(0,0,0,.18);-webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);pointer-events:none}
  #loading.visible{display:flex;pointer-events:auto}
  #loading .loading-card{background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(40px) saturate(200%);
    backdrop-filter:blur(40px) saturate(200%);border:1px solid var(--glass-border);
    border-radius:24px;padding:36px 44px;box-shadow:var(--glass-shadow-lg);
    text-align:center;min-width:260px;
    animation:popIn .35s cubic-bezier(.16,1,.3,1)}
  @keyframes popIn{from{opacity:0;transform:scale(.92) translateY(10px)}
    to{opacity:1;transform:scale(1) translateY(0)}}
  .loading-spinner{width:56px;height:56px;margin:0 auto 20px;position:relative}
  .loading-spinner svg{width:100%;height:100%;transform:rotate(-90deg)}
  .loading-spinner .sp-track{stroke:var(--border-subtle);fill:none}
  .loading-spinner .sp-arc{stroke:var(--accent);fill:none;
    stroke-dasharray:126;stroke-dashoffset:94;
    animation:spin-arc 1.4s cubic-bezier(.5,.1,.5,.9) infinite;
    transform-origin:center}
  @keyframes spin-arc{0%{stroke-dashoffset:126;transform:rotate(0)}
    50%{stroke-dashoffset:32;transform:rotate(180deg)}
    100%{stroke-dashoffset:126;transform:rotate(360deg)}}
  #loading-text{font-size:15px;font-weight:600;color:var(--text-primary);letter-spacing:-.2px}
  .print-progress{font-size:12px;color:var(--text-tertiary);margin-top:6px;
    font-variant-numeric:tabular-nums;font-weight:500}

  /* ============ EMPTY STATE ============ */
  #empty-state{position:fixed;inset:0;display:none;align-items:center;justify-content:center;
    z-index:5;padding:24px;overflow-y:auto}
  #empty-state.visible{display:flex}
  .empty-card{width:100%;max-width:620px;padding:0;border-radius:32px;
    background:var(--glass-bg);-webkit-backdrop-filter:blur(30px) saturate(180%);
    backdrop-filter:blur(30px) saturate(180%);border:1px solid var(--glass-border);
    box-shadow:var(--glass-shadow-lg);overflow:hidden;
    animation:emptyFade .6s cubic-bezier(.16,1,.3,1)}
  @keyframes emptyFade{from{opacity:0;transform:translateY(24px) scale(.97)}
    to{opacity:1;transform:translateY(0) scale(1)}}
  .empty-hero{padding:52px 40px 32px;text-align:center;
    background:radial-gradient(ellipse 85% 70% at 50% 0%,var(--accent-soft) 0%,transparent 72%)}
  .empty-icon-wrap{width:112px;height:112px;margin:0 auto 26px;display:flex;
    align-items:center;justify-content:center;
    background:linear-gradient(135deg,rgba(0,113,227,.2) 0%,rgba(0,113,227,.06) 100%);
    border-radius:28px;border:1px solid rgba(0,113,227,.2);position:relative;
    box-shadow:0 8px 32px rgba(0,113,227,.15)}
  body.dark .empty-icon-wrap{background:linear-gradient(135deg,rgba(10,132,255,.25) 0%,rgba(10,132,255,.08) 100%);
    border-color:rgba(10,132,255,.25)}
  .empty-icon-wrap svg{width:56px;height:56px;color:var(--accent);position:relative;z-index:1}
  .empty-title{font-size:28px;font-weight:700;color:var(--text-primary);
    margin-bottom:10px;letter-spacing:-.5px}
  .empty-subtitle{font-size:15px;color:var(--text-secondary);line-height:1.6;
    max-width:440px;margin:0 auto}
  .empty-dropzone{display:block;margin:0 40px 28px;padding:32px 24px;
    border:2px dashed var(--border-subtle);border-radius:20px;text-align:center;
    transition:all .22s;background:rgba(0,113,227,.03);cursor:pointer}
  body.dark .empty-dropzone{background:rgba(10,132,255,.05)}
  .empty-dropzone:hover,.empty-dropzone.dragging{border-color:var(--accent);
    background:var(--accent-soft);will-change:transform}
  .empty-dropzone .dz-icon{width:52px;height:52px;margin:0 auto 14px;
    display:flex;align-items:center;justify-content:center;
    background:var(--accent-soft);border-radius:15px;color:var(--accent);
    transition:transform .22s}
  .empty-dropzone:hover .dz-icon,.empty-dropzone.dragging .dz-icon{transform:scale(1.08)}
  .empty-dropzone .dz-icon svg{width:26px;height:26px}
  .empty-dropzone .dz-title{font-size:16px;font-weight:700;
    color:var(--text-primary);margin-bottom:6px}
  .empty-dropzone .dz-sub{font-size:13px;color:var(--text-tertiary)}
  .empty-footer{padding:20px 40px 28px;border-top:1px solid var(--border-subtle);
    display:flex;justify-content:center}
  .empty-footer .hints{display:flex;align-items:center;gap:20px;font-size:12px;
    color:var(--text-tertiary);flex-wrap:wrap;justify-content:center}
  .empty-footer .hint-item{display:flex;align-items:center;gap:7px}
  .empty-footer kbd{background:var(--hover-bg);border:1px solid var(--border-subtle);
    border-radius:6px;padding:2px 7px;font-family:inherit;font-size:10.5px;
    font-weight:600;color:var(--text-secondary);box-shadow:0 1px 0 var(--border-subtle)}

  /* ============ FLOATING THEME ============ */
  #theme-float{position:fixed;top:20px;right:20px;z-index:100;width:46px;height:46px;
    border-radius:14px;background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
    border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);
    cursor:pointer;display:none;align-items:center;justify-content:center;
    color:var(--text-primary);transition:all .2s}
  body:not(.has-pdf) #theme-float{display:flex}
  #theme-float:hover{transform:scale(1.06)}
  #theme-float:active{transform:scale(.95)}
  #theme-float svg{width:22px;height:22px}

  /* ============ DROP OVERLAY ============ */
  #drop-overlay{position:fixed;inset:0;background:rgba(0,113,227,.15);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border:4px dashed var(--accent);color:var(--text-primary);font-size:22px;
    font-weight:700;display:none;align-items:center;justify-content:center;z-index:9999}
  body.dragging #drop-overlay{display:flex}
  #drop-overlay .drop-msg{background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
    border:1px solid var(--glass-border);border-radius:20px;
    padding:32px 48px;display:flex;align-items:center;gap:16px;
    box-shadow:var(--glass-shadow-lg)}
  #drop-overlay svg{width:32px;height:32px;color:var(--accent)}

  /* ============ TOAST ============ */
  #toast{position:fixed;bottom:28px;left:50%;
    transform:translateX(-50%) translateY(24px);background:var(--glass-bg-strong);
    -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
    border:1px solid var(--glass-border);color:var(--text-primary);
    padding:13px 22px;border-radius:14px;font-size:13px;font-weight:500;
    opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
    z-index:9999;box-shadow:var(--glass-shadow-lg);max-width:80vw;text-align:center}
  #toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
  #print-frame{position:fixed;right:0;bottom:0;width:0;height:0;border:0;opacity:0;pointer-events:none}

  /* ============ RESPONSIVE ============ */
  @media (max-width:1180px){#file-name{max-width:80px}}
  @media (max-width:900px){
    #sidebar{position:absolute;top:0;left:0;bottom:0;z-index:50;
      width:340px;max-width:calc(100vw - 60px);
      border-radius:0 22px 22px 0}
    #sidebar.collapsed{width:0}
    .tb-sep{margin:0 2px}
    .empty-hero{padding:36px 24px 24px}
    .empty-dropzone{margin:0 20px;padding:24px 16px}
    .empty-footer{padding:16px 20px 20px}
    .empty-title{font-size:22px}
    #search-popup{min-width:calc(100vw - 40px)}
    #main{padding:8px;height:calc(100vh - 70px)}
    #pdf-container{padding:12px 8px}
  }
  @media (max-width:700px){
    #toolbar{margin:8px 8px 0;padding:6px 8px;border-radius:18px;min-height:50px;gap:4px}
    .ibtn{width:34px;height:34px;border-radius:10px}
    .ibtn svg{width:17px;height:17px}
    .zoom-group .ibtn{width:28px;height:28px}
    .zoom-group .ibtn svg{width:14px;height:14px}
    .split-btn > .ibtn:first-child{border-radius:10px 3px 3px 10px}
    .split-btn > .chevron{width:16px;height:34px;border-radius:3px 10px 10px 3px}
    #page-indicator{padding:4px 8px;height:28px;font-size:11px}
    #page-input{width:30px;font-size:11px}
    #zoom-level{width:42px;font-size:11px}
    #file-name{max-width:80px;font-size:11.5px}
    #main{padding:6px;gap:6px;height:calc(100vh - 66px)}
    #pdf-container{padding:10px 6px;border-radius:18px}
    #sidebar{width:calc(100vw - 70px);max-width:320px;border-radius:0 18px 18px 0}
    .side-tabs{width:52px;padding:8px 0}
    .side-tab{width:40px;height:40px}
    .side-tab svg{width:18px;height:18px}
    .empty-card{border-radius:24px}
    .empty-hero{padding:28px 16px 20px}
    .empty-icon-wrap{width:80px;height:80px;margin-bottom:18px}
    .empty-icon-wrap svg{width:40px;height:40px}
    .empty-title{font-size:20px}
    .empty-subtitle{font-size:13px}
    .empty-dropzone{margin:0 14px;padding:20px 14px}
    .empty-dropzone .dz-icon{width:44px;height:44px}
    .empty-dropzone .dz-icon svg{width:22px;height:22px}
    .empty-dropzone .dz-title{font-size:14px}
    .empty-dropzone .dz-sub{font-size:11.5px}
    .empty-footer{padding:14px 14px 18px}
    .empty-footer .hints{gap:12px;font-size:11px}
    #search-popup{min-width:calc(100vw - 24px);left:auto;right:-8px;transform:translateX(0) translateY(-8px) scale(.96)}
    #search-popup.open{transform:translateX(0) translateY(0) scale(1)}
    #search-popup .sp-input-wrap{padding:0 10px;height:36px}
    #search-input{font-size:12.5px}
    #loading .loading-card{padding:28px 32px}
    .loading-spinner{width:48px;height:48px}
    .popover{min-width:280px !important;max-width:calc(100vw - 24px) !important;padding:14px}
    #note-popup .note-text{min-height:100px}
  }
  @media (max-width:480px){
    #file-name{display:none}
    .tb-group.center{gap:0}
    #toolbar{padding:5px 6px;margin:6px 6px 0}
    .ibtn{width:32px;height:32px}
    .ibtn svg{width:16px;height:16px}
    #pdf-container{padding:8px 4px}
    .empty-hero{padding:24px 12px 16px}
    .empty-cta-row{padding:16px 12px 20px}
    #search-popup .sp-input-wrap{height:34px}
  }