:root{
  --bg:#f5f7fb;
  --surface:#ffffff;
  --surface-soft:#f8fafc;
  --surface-tint:#f1f5f9;
  --line:#e3e8ef;
  --line-strong:#d4dbe6;
  --text:#172033;
  --muted:#6b7280;
  --muted-2:#94a3b8;
  --primary:#2563eb;
  --primary-hover:#1d4ed8;
  --primary-soft:#eff6ff;
  --success:#159447;
  --warning:#c47a08;
  --danger:#d43f4e;
  --shadow:0 10px 30px rgba(15,23,42,.06);
  --shadow-lg:0 24px 60px rgba(15,23,42,.10);
  --radius:16px;
}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;font-family:"Cairo",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);font-size:14px}
button,input,select{font:inherit}
button{transition:.18s ease}
input,select{transition:border-color .18s ease,box-shadow .18s ease,background .18s ease}
.app-shell{min-height:100vh}

.topbar{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.96);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10;box-shadow:0 1px 0 rgba(15,23,42,.02)}
.brand{display:flex;align-items:center;gap:13px}
.brand-mark{width:42px;height:42px;border-radius:13px;background:linear-gradient(145deg,#2563eb,#4f8cff);color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 8px 18px rgba(37,99,235,.22)}
.topbar h1{margin:0;font-size:20px;line-height:1.35;letter-spacing:-.2px}.topbar p{margin:3px 0 0;color:var(--muted);font-size:11px}
.top-actions{display:flex;gap:9px}.btn{border:0;border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:7px}.btn.primary{background:var(--primary);color:#fff;box-shadow:0 6px 14px rgba(37,99,235,.18)}.btn.primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn.secondary{background:#fff;color:#344054;border:1px solid var(--line-strong)}.btn.secondary:hover{background:#f8fafc;border-color:#c7d0dc}

.workspace{display:grid;grid-template-columns:minmax(330px,360px) minmax(0,1fr);min-height:calc(100vh - 82px)}
.sidebar{padding:18px 16px 30px;border-left:1px solid var(--line);background:#fbfcfe;overflow:auto;max-height:calc(100vh - 82px);position:sticky;top:82px}
.sidebar-title{display:flex;align-items:center;justify-content:space-between;padding:2px 3px 13px;margin-bottom:2px}.sidebar-title h2{font-size:13px;margin:0}.sidebar-title span{font-size:10px;color:var(--muted-2);background:#eef2f7;padding:4px 8px;border-radius:999px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:15px;margin-bottom:11px;box-shadow:0 1px 2px rgba(15,23,42,.02)}
.panel-heading{display:flex;align-items:center;gap:9px;margin-bottom:13px}.panel-icon{width:28px;height:28px;border-radius:9px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:800;flex:0 0 auto}.panel h2{font-size:13px;margin:0;color:#273248}.panel-sub{font-size:10px;color:var(--muted);margin-top:2px}
.panel label{display:flex;flex-direction:column;gap:6px;font-size:11px;font-weight:600;color:#667085;margin-bottom:10px}.panel label:last-child{margin-bottom:0}
.panel input,.panel select{width:100%;height:38px;background:#fff;color:#263244;border:1px solid var(--line-strong);border-radius:9px;padding:8px 10px;outline:none;font-weight:600}.panel input:hover,.panel select:hover{border-color:#bdc7d4}.panel input:focus,.panel select:focus{border-color:#80a9ff;box-shadow:0 0 0 3px rgba(37,99,235,.09)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:9px}.segmented{display:grid;grid-template-columns:1fr 1fr;background:#f0f3f7;border-radius:10px;padding:4px;gap:4px}.segment{padding:8px;border-radius:7px;border:0;background:transparent;color:#667085;cursor:pointer;font-weight:700;font-size:11px}.segment:hover{color:#344054}.segment.active{background:#fff;color:var(--primary);box-shadow:0 2px 8px rgba(15,23,42,.08)}

.component-panel{border-color:#dce5f2;position:relative;overflow:hidden}.component-panel:before{content:"";position:absolute;right:0;top:0;bottom:0;width:3px;background:#8cb5ff}.panel-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}.panel-title-row .title-wrap{display:flex;align-items:center;gap:8px}.panel-title-row h2{margin:0}.ratio-btn{border:1px solid var(--line-strong);background:#fff;color:#667085;border-radius:8px;padding:5px 9px;font-size:10px;cursor:pointer;font-weight:700}.ratio-btn:hover{background:#f8fafc}.ratio-btn.active{border-color:#bcd2ff;color:var(--primary);background:var(--primary-soft)}

.upload-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 11px;border:1px dashed #cbd5e1;border-radius:10px;background:#f8fafc;margin-bottom:9px}.upload-card strong{display:block;font-size:11px;color:#344054}.upload-card span{display:block;font-size:9px;color:var(--muted);margin-top:2px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-btn{background:#fff;color:var(--primary)!important;padding:6px 11px;border-radius:8px;cursor:pointer;margin:0!important;border:1px solid #c9d9fb;font-weight:700;flex:0 0 auto}.file-btn:hover{background:var(--primary-soft)}.file-btn input{display:none}.pdf-page{background:#f8fafc;border:1px solid var(--line);border-radius:9px;padding:9px}.page-hint{font-size:9px;color:var(--muted-2);font-weight:500}.switch-row{flex-direction:row!important;justify-content:space-between;align-items:center;color:#344054!important;font-weight:600!important;padding:4px 0}.switch-row input{width:34px!important;height:19px!important;accent-color:var(--primary)}

.stage-wrap{padding:20px 24px 34px;min-width:0;background:var(--bg)}
.summary-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:13px}.summary-bar>div,.quality-card{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:12px 14px;box-shadow:0 1px 2px rgba(15,23,42,.02)}.summary-bar span,.quality-card span{display:block;color:var(--muted);font-size:9px;font-weight:700;margin-bottom:2px}.summary-bar strong,.quality-card strong{font-size:13px;color:#273248}.summary-bar>div:last-child strong{color:var(--success)}
.canvas-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}.canvas-toolbar{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;border-bottom:1px solid var(--line);font-size:11px;font-weight:700;background:#fff}.canvas-toolbar-left{display:flex;align-items:center;gap:8px}.canvas-toolbar-left:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px #e7f8ee}.hint{color:var(--muted);font-size:9px;font-weight:500}.preview-scroller{min-height:610px;display:flex;align-items:center;justify-content:center;padding:32px;overflow:auto;background-color:#eef2f6;background-image:linear-gradient(45deg,#e4e9ef 25%,transparent 25%),linear-gradient(-45deg,#e4e9ef 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e4e9ef 75%),linear-gradient(-45deg,transparent 75%,#e4e9ef 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}#previewCanvas{max-width:100%;height:auto;background:#fff;box-shadow:0 18px 45px rgba(15,23,42,.16);border:1px solid #d8dee7}
.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.quality-card{padding:12px 14px}.quality-card strong{font-size:15px}.quality-card small{display:block;color:var(--muted);margin-top:2px;font-size:9px}

.modal{position:fixed;inset:0;background:rgba(15,23,42,.42);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:20}.hidden{display:none}.modal-card{width:min(520px,92vw);background:#fff;border:1px solid var(--line);border-radius:18px;padding:21px;box-shadow:var(--shadow-lg)}.modal-card h3{margin:0 0 14px;font-size:17px}.export-summary{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:14px;color:#475467;line-height:1.9;font-size:11px}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:16px}

@media(max-width:1200px){.summary-bar{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){.topbar{padding:0 16px}.topbar p{display:none}.workspace{grid-template-columns:1fr}.sidebar{position:relative;top:0;max-height:none;border-left:0;border-bottom:1px solid var(--line)}.stage-wrap{padding:16px}.summary-bar,.quality-grid{grid-template-columns:1fr 1fr}.hint{display:none}.preview-scroller{min-height:470px;padding:18px}}
@media(max-width:620px){.brand-mark{width:36px;height:36px}.topbar h1{font-size:16px}.top-actions .btn{padding:8px 10px;font-size:10px}.summary-bar,.quality-grid,.grid-2{grid-template-columns:1fr}.stage-wrap{padding:11px}.sidebar{padding:12px}.preview-scroller{min-height:350px}.canvas-toolbar{padding:10px 12px}}
.switch-help{display:block;color:var(--muted);font-size:9px;font-weight:500;margin-top:2px;line-height:1.5}.switch-row>span{min-width:0}.pdf-page select{margin-top:2px}

/* Interactive preview + alignment */
.canvas-toolbar-main{display:flex;align-items:center;gap:10px;min-width:0}.selected-part-badge{font-size:9px;font-weight:700;color:var(--muted);background:#f4f6f8;border:1px solid var(--line);padding:4px 8px;border-radius:999px;white-space:nowrap}.selected-part-badge.active{color:var(--primary);background:var(--primary-soft);border-color:#bfd3ff}.align-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-bottom:1px solid var(--line);background:#fbfcfe;flex-wrap:wrap}.align-group{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.align-label{font-size:9px;font-weight:800;color:#667085;margin-inline-end:2px}.align-btn{height:30px;padding:0 9px;border:1px solid var(--line-strong);background:#fff;color:#475467;border-radius:8px;cursor:pointer;font-size:9px;font-weight:700}.align-btn:hover{border-color:#a9c3fb;color:var(--primary);background:var(--primary-soft)}.align-btn.strong{border-color:#b9ccf7;color:var(--primary);background:#f4f8ff}.component-panel.active-component{border-color:#8eb3ff;box-shadow:0 0 0 2px rgba(37,99,235,.08)}.component-panel.active-component:before{width:4px;background:var(--primary)}#previewCanvas{cursor:default;touch-action:none}#previewCanvas:hover{cursor:pointer}#previewCanvas.dragging{cursor:grabbing}.preview-scroller{user-select:none}
@media(max-width:980px){.align-toolbar{align-items:flex-start}.all-parts{width:100%}}


/* PDF text editor */
.text-editor-modal{z-index:40}.text-editor-card{width:min(1180px,96vw);height:min(860px,94vh);padding:0;display:flex;flex-direction:column;overflow:hidden}.text-editor-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:18px 20px 13px;border-bottom:1px solid var(--line)}.text-editor-head h3{margin:0 0 4px}.text-editor-head p{margin:0;color:var(--muted);font-size:10px;line-height:1.7}.selection-count{background:var(--primary-soft);color:var(--primary);border:1px solid #c5d8ff;border-radius:999px;padding:5px 10px;font-size:10px;font-weight:800;white-space:nowrap}.text-editor-tools{display:flex;align-items:center;gap:7px;padding:10px 14px;border-bottom:1px solid var(--line);background:#fbfcfe;flex-wrap:wrap}.tool-divider{width:1px;height:22px;background:var(--line);margin:0 3px}.text-editor-stage{flex:1;min-height:0;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:24px;background-color:#eef2f6;background-image:linear-gradient(45deg,#e4e9ef 25%,transparent 25%),linear-gradient(-45deg,#e4e9ef 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e4e9ef 75%),linear-gradient(-45deg,transparent 75%,#e4e9ef 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}.text-editor-stage canvas{display:block;background:#fff;box-shadow:0 16px 45px rgba(15,23,42,.18);cursor:crosshair;touch-action:none;user-select:none}.text-editor-note{padding:8px 16px;color:#667085;background:#fff;border-top:1px solid var(--line);font-size:9px}.text-editor-card .modal-actions{margin:0;padding:12px 16px;border-top:1px solid var(--line);background:#fff}.text-editor-card .modal-actions .btn{min-width:110px}
@media(max-width:700px){.text-editor-card{width:98vw;height:96vh}.text-editor-head{padding:13px}.text-editor-head p{display:none}.text-editor-stage{padding:12px}.text-editor-tools{padding:8px}}

.micro-hint{font-size:11px;color:#667085;line-height:1.7;margin-top:6px;padding:8px 10px;background:#f8fafc;border:1px solid #eef2f6;border-radius:9px}

#previewCanvas:focus{outline:3px solid rgba(37,99,235,.22);outline-offset:3px}
#previewCanvas.dragging{cursor:grabbing!important}

.artwork-controls{margin-top:12px;padding:12px;border:1px solid #dbe4f0;border-radius:12px;background:#f8fbff}
.subsection-title{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px;font-weight:700;color:#334155}
.artwork-ratio-btn{border:1px solid #cbd5e1;background:#fff;border-radius:8px;padding:5px 8px;cursor:pointer;font-family:inherit}
.artwork-ratio-btn.active{border-color:#93c5fd;background:#eff6ff;color:#1d4ed8}