*{box-sizing:border-box}body{margin:0;background:#f5f6fb;color:#171923;font-family:Inter,Arial,sans-serif;overflow:hidden}.top{height:76px;background:#fff;border-bottom:1px solid #e7e8ee;display:flex;align-items:center;justify-content:space-between;padding:0 3vw;gap:15px;position:relative;z-index:20}.brand{display:flex;gap:11px;align-items:center}.brand b{font-size:21px}.brand small{display:block;color:#7a7d88;font-size:11px;letter-spacing:1px}.logo{width:38px;height:38px;border-radius:11px;background:#ef2b2d;color:white;display:grid;place-items:center;font-weight:800;font-size:21px}.header-actions{display:flex;align-items:center;gap:9px}.home{color:#555967;text-decoration:none;font-size:13px;white-space:nowrap}.btn{border:0;border-radius:10px;padding:11px 16px;font-weight:700;cursor:pointer;background:#f0f1f5;color:#343741}.btn.primary{background:#ef2b2d;color:#fff}.btn.secondary{background:#f0f1f5;color:#343741}.btn:disabled{opacity:.55;cursor:wait}.file-btn{display:inline-flex;align-items:center}.editor-toolbar{background:#fff;border-bottom:1px solid #e7e8ee;box-shadow:0 4px 18px #20203008;position:relative;z-index:10}.toolbar-scroll{min-height:64px;padding:10px 18px;display:flex;gap:7px;align-items:center;overflow-x:auto}.tool{border:1px solid #e1e2e8;background:#fff;color:#4d505b;border-radius:10px;padding:9px 11px;cursor:pointer;white-space:nowrap;font-weight:700;font-size:12px}.tool:hover{border-color:#ef2b2d;color:#ef2b2d}.tool.active{background:#fff0f0;border-color:#ef2b2d;color:#ef2b2d}.tool.danger{color:#a33}.control{font-size:11px;color:#666a75;display:flex;align-items:center;gap:5px;white-space:nowrap;padding-left:6px}.control input[type=color]{width:34px;height:30px;padding:2px;border:1px solid #ddd;border-radius:7px;background:#fff}.control input[type=number]{width:58px;padding:7px;border:1px solid #ddd;border-radius:7px}.editor-main{display:flex;height:calc(100vh - 140px);min-height:0}aside{width:185px;background:#fff;border-right:1px solid #e7e8ee;padding:12px;overflow:auto}.empty-side{text-align:center;color:#9a9da7;font-size:12px;padding:30px 5px;line-height:1.6}.thumb{padding:5px;margin-bottom:10px;border:2px solid transparent;border-radius:10px;cursor:pointer;background:#fafbfe}.thumb.active{border-color:#ef2b2d;background:#fff5f5}.thumb.deleted{opacity:.45}.thumb canvas{width:100%;display:block;border-radius:5px}.thumb small{display:block;text-align:center;padding-top:5px;color:#666;font-size:10px}.workspace{flex:1;overflow:auto;padding:22px 18px 60px;background:#f5f6fb}.empty-message{text-align:center;color:#858995;font-size:13px;margin:3px 0 15px}.page{position:relative;margin:0 auto 25px;background:#fff;box-shadow:0 10px 30px #20203016;border-radius:2px}.page>canvas{display:block;position:relative;z-index:1}.overlay{position:absolute;inset:0;touch-action:none;overflow:hidden;z-index:2}.item{position:absolute}.text{white-space:pre-wrap;max-width:80%;cursor:move}.draw{object-fit:fill;pointer-events:none}.rect{background:#fff;border:1px solid #eee}.text-hit{position:absolute;padding:0;margin:0;border:0;background:rgba(239,43,45,.07);outline:1px dashed rgba(239,43,45,.35);color:transparent;cursor:text;z-index:5;overflow:hidden;text-align:left}.text-hit:hover{background:rgba(239,43,45,.20);color:rgba(239,43,45,.9)}.redaction{z-index:100;background:#fff!important;border:0!important;pointer-events:none}.replacement-text{z-index:101;overflow:hidden;pointer-events:none;white-space:pre-wrap;max-width:none;padding:0;margin:0}dialog{border:0;border-radius:18px;padding:0;box-shadow:0 20px 70px #20203035;max-width:520px;width:92%;background:#fff}dialog::backdrop{background:#17192366}.dialog-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid #eee}.dialog-head h3{margin:0;font-size:18px}.close{border:0;background:#f0f1f5;border-radius:8px;width:32px;height:32px;font-size:20px;cursor:pointer}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:15px 20px;border-top:1px solid #eee}dialog textarea{display:block;width:calc(100% - 40px);margin:18px 20px;padding:12px;border:1px solid #dddfe6;border-radius:10px;font:inherit;resize:vertical}#sig{display:block;margin:18px auto;border:1px solid #ddd;background:#fff;max-width:calc(100% - 40px);touch-action:none}#toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);background:#171923;color:#fff;padding:11px 17px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s;z-index:99;max-width:90%;text-align:center;box-shadow:0 8px 25px #0002}#toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:760px){.top{padding:0 14px}.brand b{font-size:17px}.home{display:none}.header-actions{margin-left:auto}.header-actions .btn{padding:9px 10px;font-size:11px}.editor-main{height:calc(100vh - 140px)}aside{width:90px;padding:7px}.workspace{padding:12px 7px 40px}.tool{padding:8px 9px}.tool span{display:none}.control{font-size:10px}}


/* Responsive PDF canvas fit upgrade */
html,body{width:100%;height:100%;}
body{overflow:hidden;}
.editor-main{width:100%;min-width:0;}
.workspace{min-width:0;min-height:0;display:block;overflow:auto;overscroll-behavior:contain;}
#stage{width:100%;min-width:0;display:flex;flex-direction:column;align-items:center;}
.page{flex:0 0 auto;max-width:100%;}
.page>canvas{max-width:100%;height:auto;}
.overlay{max-width:100%;}
.toolbar-scroll{-webkit-overflow-scrolling:touch;scrollbar-width:thin;}
@media(max-width:760px){
  .top{height:64px;gap:7px;}
  .logo{width:32px;height:32px;border-radius:9px;font-size:18px;}
  .brand small{display:none;}
  .header-actions{gap:5px;}
  .header-actions .btn{padding:8px 9px;border-radius:8px;}
  .editor-toolbar{height:54px;}
  .toolbar-scroll{min-height:54px;height:54px;padding:7px 9px;gap:6px;}
  .tool{padding:8px 10px;font-size:12px;border-radius:8px;}
  .control{padding-left:3px;}
  .editor-main{height:calc(100vh - 118px);}
  aside{width:76px;padding:6px;}
  .workspace{padding:10px 6px 32px;}
  .empty-message{font-size:12px;margin:2px 0 10px;}
  .page{margin-bottom:18px;box-shadow:0 5px 18px #20203016;}
  .thumb{margin-bottom:7px;padding:4px;border-radius:8px;}
  .thumb small{font-size:9px;}
}
@media(max-width:430px){
  .brand b{font-size:15px;}
  .header-actions .file-btn{font-size:0;}
  .header-actions .file-btn::before{content:"Open";font-size:11px;}
  .header-actions .btn#save{font-size:0;}
  .header-actions .btn#save::before{content:"Download";font-size:11px;}
  aside{width:68px;}
  .workspace{padding-left:4px;padding-right:4px;}
}

/* PraxTools unified visual layer */
body{background:#f6f8fc;color:#111827}.top{background:rgba(255,255,255,.97);border-bottom:1px solid #e5e9f2}.editor-toolbar{box-shadow:0 5px 18px rgba(15,23,42,.05)}.tool,.control,dialog{border-radius:10px}.workspace{background:#eef1f6}.home{text-decoration:none;font-weight:800}

/* vNext professional editor polish */
.divider{width:1px;height:30px;background:#e5e7eb;flex:0 0 1px;margin:0 3px}.zoom-label{min-width:48px;text-align:center;font-size:12px;font-weight:800;color:#4b5563}.text-hit{border:none!important;box-shadow:none!important;text-decoration:none!important;border-radius:2px}.text-hit:focus{outline:2px solid rgba(239,43,45,.55)!important;outline-offset:1px}.replacement-text{font-family:Arial,Helvetica,sans-serif!important;border:0!important;outline:0!important;text-decoration:none!important;box-shadow:none!important;display:flex;align-items:flex-start}.redaction{outline:0!important;box-shadow:none!important}.page{border:1px solid #dfe3ea}.editor-toolbar{position:sticky;top:0}.toolbar-scroll{justify-content:flex-start}.tool{min-height:38px}.tool:active{transform:translateY(1px)}
@media(max-width:760px){.divider{height:26px}.zoom-label{min-width:40px;font-size:11px}}