:root{
  --teal:#008482;
  --navy:#014557;
  --cyan:#00AEB3;
  --ink:#0b1114;
  --muted:#6e7a80;
  --line:#dfe6e8;
  --paper:#f5f8f8;
  --white:#fff;
  --danger:#d24747;
  --shadow:0 18px 60px rgba(1,69,87,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Montserrat,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff}
button,input{font:inherit}
button{cursor:pointer}
button:disabled{opacity:.45;cursor:not-allowed}
.hidden{display:none!important}

.topbar{
  height:78px;padding:0 34px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:#fff;position:sticky;top:0;z-index:50
}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none}
.brand strong{display:block;font-size:17px;line-height:1;letter-spacing:.08em}
.brand small{display:block;font-size:9px;letter-spacing:.24em;margin-top:5px;color:var(--teal);font-weight:700}
.eye{width:36px;height:22px;border:3px solid var(--teal);border-radius:70% 18% 70% 18%;transform:rotate(45deg);display:grid;place-items:center}
.eye i{display:block;width:8px;height:8px;background:var(--navy);border-radius:50%}
.privacy-pill{font-size:10px;font-weight:800;letter-spacing:.08em;color:var(--teal);background:#eaf7f6;border:1px solid #cdecea;border-radius:999px;padding:9px 13px}

.shell{min-height:calc(100vh - 130px)}
.upload-view{max-width:1180px;margin:auto;padding:78px 28px 90px;display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}
.hero .eyebrow,.section-label{font-size:10px;letter-spacing:.16em;font-weight:800;color:var(--teal)}
.hero h1{font-size:clamp(48px,6vw,86px);line-height:.93;letter-spacing:-.055em;margin:18px 0 28px;max-width:760px}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero p{font-size:17px;line-height:1.6;color:var(--muted);max-width:620px;margin:0}
.dropzone{
  min-height:420px;border:1.5px dashed #9fc8ca;border-radius:30px;background:linear-gradient(145deg,#f7fbfb,#eef8f7);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;text-align:center;padding:30px;transition:.18s ease;box-shadow:var(--shadow)
}
.dropzone:hover,.dropzone.dragover{transform:translateY(-2px);border-color:var(--teal);background:#effaf9}
.drop-icon{width:76px;height:76px;border-radius:22px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:36px;margin-bottom:10px;box-shadow:0 14px 30px rgba(1,69,87,.25)}
.dropzone strong{font-size:20px}
.dropzone span:not(.drop-icon){color:var(--muted);font-size:14px}
.dropzone small{color:#829095;font-size:11px;margin-top:16px}

.editor-view{display:grid;grid-template-columns:230px minmax(0,1fr) 320px;min-height:calc(100vh - 78px)}
.sidebar{border-right:1px solid var(--line);background:#fbfcfc;min-width:0}
.sidebar-head{padding:22px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.sidebar-head strong{display:block;font-size:12px;max-width:155px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:5px}
.icon-btn{border:1px solid var(--line);background:#fff;width:35px;height:35px;border-radius:10px}
.pages-title{padding:15px 18px 10px;display:flex;justify-content:space-between;font-size:10px;font-weight:800;letter-spacing:.1em;color:#829095}
.page-list{padding:4px 10px 24px;overflow:auto;height:calc(100vh - 190px)}
.page-thumb{width:100%;border:1px solid transparent;border-radius:14px;padding:8px;background:transparent;display:flex;gap:10px;align-items:center;text-align:left;margin-bottom:5px;transition:.15s}
.page-thumb:hover{background:#f1f6f6}
.page-thumb.active{background:#eaf7f6;border-color:#bfe4e3}
.page-thumb canvas{width:64px;height:70px;object-fit:contain;background:white;border:1px solid #e5eaeb;border-radius:5px}
.page-thumb .meta{min-width:0}
.page-thumb strong{display:block;font-size:11px;margin-bottom:4px}
.page-thumb small{display:block;font-size:9px;color:var(--muted)}
.page-thumb .dots{display:flex;gap:3px;margin-top:7px;flex-wrap:wrap}
.page-thumb .dots i{display:block;width:6px;height:6px;border-radius:50%;background:var(--teal)}

.workspace{min-width:0;background:var(--paper);display:flex;flex-direction:column}
.workspace-toolbar{height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}
.workspace-toolbar strong{display:block;font-size:14px;margin-top:4px}
.toolbar-actions{display:flex;gap:7px}
.ghost-btn{border:1px solid var(--line);background:#fff;color:#263238;border-radius:11px;padding:10px 13px;font-weight:700;font-size:11px}
.ghost-btn:hover{border-color:#b5c7ca;background:#f7f9f9}
.preview-stage{flex:1;display:flex;align-items:center;justify-content:center;position:relative;padding:28px;min-height:500px}
.canvas-wrap{position:relative;box-shadow:0 16px 55px rgba(0,0,0,.14);background:#fff;max-width:100%;max-height:calc(100vh - 220px)}
#pdfCanvas{display:block;max-width:100%;max-height:calc(100vh - 220px)}
.cut-overlay{position:absolute;inset:0;touch-action:none}
.cut-line{position:absolute;background:var(--cyan);box-shadow:0 0 0 1px rgba(255,255,255,.8),0 0 20px rgba(0,174,179,.2);z-index:3}
.cut-line.vertical{top:0;bottom:0;width:3px;transform:translateX(-1.5px);cursor:ew-resize}
.cut-line.horizontal{left:0;right:0;height:3px;transform:translateY(-1.5px);cursor:ns-resize}
.cut-line::after{content:"";position:absolute;background:var(--navy);border:3px solid #fff;width:14px;height:14px;border-radius:50%;box-shadow:0 3px 10px rgba(0,0,0,.2)}
.cut-line.vertical::after{left:50%;top:50%;transform:translate(-50%,-50%)}
.cut-line.horizontal::after{left:50%;top:50%;transform:translate(-50%,-50%)}
.panel-number{position:absolute;z-index:2;display:grid;place-items:center;width:32px;height:32px;background:rgba(1,69,87,.9);color:white;border-radius:10px;font-size:11px;font-weight:800;pointer-events:none}
.preview-help{position:absolute;bottom:12px;background:rgba(11,17,20,.84);color:#fff;padding:8px 12px;border-radius:999px;font-size:10px}
.mobile-page-nav{display:none}

.controls{border-left:1px solid var(--line);display:flex;flex-direction:column;background:#fff;min-width:0}
.controls-scroll{padding:22px 20px;overflow:auto;flex:1}
.control-block{padding:0 0 22px;margin-bottom:22px;border-bottom:1px solid var(--line)}
.control-block:last-child{border-bottom:0}
.segmented{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:10px}
.segmented.five{grid-template-columns:repeat(5,1fr)}
.segmented button{min-height:41px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:11px;font-weight:800;color:#455459}
.segmented button:hover{border-color:#9bbabd}
.segmented button.active{border-color:var(--teal);background:#eaf7f6;color:var(--navy);box-shadow:inset 0 0 0 1px var(--teal)}
.hint{font-size:10px;color:#8a969a;line-height:1.45;margin-top:8px}
.orient-icon{display:inline-block;width:15px;height:12px;border:1.5px solid currentColor;vertical-align:-2px;position:relative;margin-right:5px}
.orient-icon.vertical::after{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:1px dashed currentColor}
.orient-icon.horizontal::after{content:"";position:absolute;top:50%;left:0;right:0;border-top:1px dashed currentColor}
.row-between{display:flex;align-items:center;justify-content:space-between}
.text-btn{border:0;background:transparent;color:var(--teal);font-size:10px;font-weight:800;padding:0}
.cut-values{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.cut-value{display:grid;grid-template-columns:1fr 64px 30px;align-items:center;gap:7px}
.cut-value input[type="range"]{width:100%;accent-color:var(--teal)}
.cut-value input[type="number"]{width:64px;border:1px solid var(--line);border-radius:8px;padding:7px 6px;font-size:10px}
.cut-value button{width:30px;height:30px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--danger)}
.empty-mini{font-size:10px;color:#93a0a4;background:#f7f9f9;border-radius:9px;padding:10px}
.secondary-btn{width:100%;border:1px solid #b5cccf;background:#f5fbfb;border-radius:11px;padding:11px;color:var(--navy);font-size:11px;font-weight:800}
.export-box{padding:17px 20px;border-top:1px solid var(--line);box-shadow:0 -8px 30px rgba(0,0,0,.04)}
.export-box>div{display:flex;justify-content:space-between;align-items:end;margin-bottom:11px}
.export-box strong{font-size:13px}
.primary-btn{border:0;border-radius:12px;background:linear-gradient(135deg,var(--teal),var(--navy));color:#fff;padding:12px 15px;font-size:11px;font-weight:800;box-shadow:0 10px 22px rgba(1,69,87,.18)}
.export-box .primary-btn{width:100%;min-height:46px}

.review-view{max-width:1280px;margin:auto;padding:38px 28px 80px}
.review-top{display:grid;grid-template-columns:1fr 1fr 1fr;align-items:center;gap:15px}
.review-top>div:nth-child(2){text-align:center}
.review-top h2{font-size:32px;margin:5px 0 0;letter-spacing:-.04em}
.review-actions{display:flex;justify-content:flex-end;gap:8px}
.review-note{margin:30px 0 18px;padding:13px 16px;border-radius:13px;background:#eef8f7;color:#526167;font-size:12px}
.output-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(145px,1fr));gap:15px}
.output-card{border:1px solid var(--line);border-radius:16px;background:#fff;padding:10px;position:relative;box-shadow:0 5px 16px rgba(1,69,87,.05);cursor:grab;transition:.15s}
.output-card:active{cursor:grabbing}
.output-card.dragging{opacity:.45;transform:scale(.98)}
.output-card canvas{width:100%;aspect-ratio:3/4;object-fit:contain;background:#f3f6f6;border-radius:9px;display:block}
.output-card .card-meta{display:flex;align-items:center;justify-content:space-between;padding:9px 2px 1px}
.output-card strong{font-size:10px}
.output-card small{font-size:9px;color:var(--muted)}
.output-card .remove-output{position:absolute;top:5px;right:5px;width:26px;height:26px;border:0;border-radius:50%;background:rgba(11,17,20,.82);color:#fff;font-size:15px;z-index:2}

.loading{position:fixed;inset:0;z-index:100;background:rgba(248,251,251,.92);backdrop-filter:blur(8px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px}
.spinner{width:44px;height:44px;border:4px solid #d7e9e9;border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite}
.loading strong{font-size:16px;margin-top:8px}
.loading span{font-size:11px;color:var(--muted)}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,30px);opacity:0;pointer-events:none;background:#0c191c;color:#fff;padding:11px 15px;border-radius:11px;font-size:11px;font-weight:700;z-index:120;transition:.2s}
.toast.show{opacity:1;transform:translate(-50%,0)}
.footer{height:52px;padding:0 28px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;color:#8a989c;font-size:9px;font-weight:700;letter-spacing:.09em}

@media(max-width:1050px){
  .editor-view{grid-template-columns:190px minmax(0,1fr) 285px}
  .sidebar-head strong{max-width:120px}
}
@media(max-width:820px){
  .topbar{height:66px;padding:0 16px}.privacy-pill{display:none}
  .upload-view{grid-template-columns:1fr;padding:46px 20px 60px;gap:35px}
  .hero h1{font-size:52px}.dropzone{min-height:300px}
  .editor-view{display:block}
  .sidebar{display:none}
  .workspace-toolbar{height:64px;padding:0 14px}
  .preview-stage{min-height:390px;padding:18px 12px 38px}
  .canvas-wrap{max-height:58vh}
  #pdfCanvas{max-height:58vh}
  .controls{border-left:0;border-top:1px solid var(--line)}
  .controls-scroll{padding:20px 16px}
  .export-box{position:sticky;bottom:0;background:white;z-index:10}
  .mobile-page-nav{display:flex;align-items:center;justify-content:center;gap:18px;padding:10px;background:#fff;border-top:1px solid var(--line)}
  .mobile-page-nav button{border:1px solid var(--line);background:#fff;border-radius:9px;width:38px;height:34px}
  .mobile-page-nav span{font-size:11px}
  .review-top{grid-template-columns:1fr;align-items:start}
  .review-top>div:nth-child(2){text-align:left;order:-1}
  .review-actions{justify-content:flex-start}
  .footer{padding:0 16px}.footer span:last-child{display:none}
}
@media(max-width:520px){
  .hero h1{font-size:42px}.hero p{font-size:15px}
  .output-grid{grid-template-columns:repeat(2,1fr)}
  .review-actions{display:grid;grid-template-columns:1fr 1fr}
  .review-actions button{width:100%}
}