:root{--navy:#061633;--ink:#101b3b;--blue:#078be8;--blue-dark:#0667ad;--cyan:#4bd7ff;--green:#9ee636;--yellow:#ffd51d;--paper:#f4f7fb;--white:#fff;--line:#dce5f1;--muted:#5f6c84;--danger:#c93c3c;--ok:#1f9d55;--warn:#d98a1a;--radius:10px;--shadow:0 10px 28px rgba(8,31,69,.14);--font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--mono:ui-monospace,Consolas,"Courier New",monospace}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:13px/1.45 var(--font);color:var(--ink);background:var(--paper);display:flex;flex-direction:column;height:100vh;overflow:hidden}
button,input,select,textarea{font-family:inherit}
button{cursor:pointer}
.skip{position:absolute;left:-9999px;top:8px;background:var(--yellow);color:var(--navy);padding:8px 12px;border-radius:8px;font-weight:700;z-index:2000}
.skip:focus{left:8px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid #f5a300;outline-offset:1px}

/* ---------- header ---------- */
.app-header{background:var(--navy);color:#fff;display:flex;align-items:center;gap:14px;padding:0 14px;height:54px;flex:0 0 auto}
.brand{color:#fff;text-decoration:none;font-weight:700;display:flex;align-items:center;gap:9px;white-space:nowrap}
.brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--blue),var(--cyan));display:grid;place-items:center;font-size:11px;font-weight:800;color:var(--navy);letter-spacing:-.5px}
.app-name{font-weight:700;font-size:15px;letter-spacing:-.2px;line-height:1.1;white-space:nowrap}
.app-name small{display:block;font-weight:500;font-size:10.5px;color:#9fb6da;letter-spacing:.5px;text-transform:uppercase}
.doc-title input{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:8px;padding:6px 10px;min-width:240px;font:600 13px var(--font)}
.doc-title input:focus{background:rgba(255,255,255,.14)}
.header-actions{margin-left:auto;display:flex;gap:5px;align-items:center}
.hbtn{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#fff;border-radius:8px;padding:0 10px;height:34px;font:600 12px var(--font);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;text-decoration:none}
.hbtn:hover{background:rgba(255,255,255,.16)}
.hbtn.primary{background:var(--blue);border-color:var(--blue)}
.hbtn.primary:hover{background:#1d97ec}
.hbtn svg{width:16px;height:16px}
.back{color:#cbd9f3;text-decoration:none;font-size:12px;margin-left:6px;white-space:nowrap}
.back:hover{color:#fff}

/* ---------- toolbar ---------- */
.toolbar{display:flex;align-items:center;gap:2px;padding:4px 8px;background:#fff;border-bottom:1px solid var(--line);flex:0 0 auto;overflow-x:auto;overflow-y:hidden;white-space:nowrap;scrollbar-width:thin}
.tbtn{height:32px;min-width:32px;padding:0 7px;border:1px solid transparent;background:transparent;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;gap:5px;color:var(--ink);font:500 12px var(--font);flex:0 0 auto}
.tbtn:hover{background:#eef4fb}
.tbtn[aria-pressed=true],.tbtn.active{background:#e3f0fc;border-color:#bcd9f5;color:var(--blue-dark)}
.tbtn:disabled{opacity:.38;cursor:default;background:transparent}
.tbtn svg{width:18px;height:18px;flex:0 0 auto}
.tbtn .kbd{font-size:10px;color:var(--muted);font-weight:600}
.sep{width:1px;height:22px;background:var(--line);margin:0 5px;flex:0 0 auto}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:7px;overflow:hidden;flex:0 0 auto}
.seg button{border:0;background:#fff;padding:0 10px;height:30px;font:600 12px var(--font);color:var(--muted)}
.seg button[aria-pressed=true]{background:var(--navy);color:#fff}
.zoom-val{min-width:46px;text-align:center;font:600 12px var(--font)}
.dropdown{position:relative;display:inline-block}
.menu{position:absolute;top:calc(100% + 4px);left:0;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:5px;min-width:210px;z-index:300;display:none}
.menu.open{display:block}
.menu.right{left:auto;right:0}
.menu button,.ctx button{display:flex;width:100%;align-items:center;gap:8px;border:0;background:none;padding:7px 10px;border-radius:6px;font:12.5px var(--font);color:var(--ink);text-align:left}
.menu button:hover,.ctx button:hover,.menu button:focus-visible,.ctx button:focus-visible{background:#eef4fb}
.menu button svg,.ctx button svg{width:16px;height:16px;color:var(--muted)}
.menu button .kbd,.ctx button .kbd{margin-left:auto;font-size:10.5px;color:var(--muted)}
.menu hr,.ctx hr{border:0;border-top:1px solid var(--line);margin:4px 0}
.menu .mtitle{font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);padding:6px 10px 2px;font-weight:700}
.menu button[aria-checked=true]{background:#e3f0fc;color:var(--blue-dark)}

/* ---------- workspace ---------- */
.workspace{flex:1;display:grid;grid-template-columns:256px minmax(0,1fr) 304px;min-height:0;position:relative}
.workspace.lib-closed{grid-template-columns:0 minmax(0,1fr) 304px}
.workspace.props-closed{grid-template-columns:256px minmax(0,1fr) 0}
.workspace.lib-closed.props-closed{grid-template-columns:0 minmax(0,1fr) 0}
.panel{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;overflow:hidden;min-width:0}
.panel.right{border-right:0;border-left:1px solid var(--line)}
.workspace.lib-closed .panel.left,.workspace.props-closed .panel.right{visibility:hidden}
.panel-head{padding:8px 10px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;font-weight:700;font-size:11.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);flex:0 0 auto}
.panel-head .close{margin-left:auto;border:0;background:none;color:var(--muted);font-size:16px;line-height:1;padding:2px 6px;border-radius:6px}
.panel-head .close:hover{background:#eef4fb}
.panel-body{overflow:auto;flex:1;padding:8px 10px;scrollbar-width:thin}
.search{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:8px;font:13px var(--font);background:#fff}
.lib-cat{margin-top:6px}
.lib-cat summary{cursor:pointer;font-weight:700;font-size:12px;padding:6px 4px;color:var(--ink);list-style:none;display:flex;align-items:center;gap:6px;border-radius:6px}
.lib-cat summary::-webkit-details-marker{display:none}
.lib-cat summary::before{content:"";width:6px;height:6px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);margin:0 4px 0 2px;transition:transform .12s}
.lib-cat[open] summary::before{transform:rotate(45deg)}
.lib-cat summary .cnt{margin-left:auto;font-size:10.5px;color:var(--muted);font-weight:600}
.lib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:2px 0 6px}
.lib-item{border:1px solid transparent;border-radius:8px;padding:6px 2px 5px;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:grab;background:#fff;font-size:10.5px;color:var(--muted);text-align:center;line-height:1.15;user-select:none;-webkit-user-select:none;touch-action:none}
.lib-item:hover,.lib-item:focus-visible{border-color:#bcd9f5;background:#f2f8fe;color:var(--ink)}
.lib-item svg{width:44px;height:36px;overflow:visible;display:block}
.lib-item.hidden{display:none}
.lib-empty{color:var(--muted);padding:14px 4px;text-align:center}
.lib-hint{font-size:11px;color:var(--muted);margin:6px 2px 0}
.drag-ghost{position:fixed;pointer-events:none;z-index:900;opacity:.85;background:#fff;border:1px solid #bcd9f5;border-radius:8px;padding:4px;box-shadow:var(--shadow);display:none}
.drag-ghost svg{width:44px;height:36px;display:block}

.canvas-wrap{position:relative;overflow:hidden;background:#fff;min-width:0;min-height:0}
svg#canvas{width:100%;height:100%;display:block;touch-action:none;outline:none;cursor:default;-webkit-user-select:none;user-select:none}
svg#canvas:focus-visible{box-shadow:inset 0 0 0 3px #f5a300}
svg#canvas.tool-pan{cursor:grab}
svg#canvas.tool-pan.dragging{cursor:grabbing}
svg#canvas.tool-connect,svg#canvas.tool-shape,svg#canvas.tool-text,svg#canvas.tool-line,svg#canvas.tool-note{cursor:crosshair}
svg#canvas .shape{cursor:move}
svg#canvas .shape.locked{cursor:default}
svg#canvas .conn{cursor:pointer}
svg#canvas [data-port]{cursor:crosshair}
svg#canvas [data-endpoint]{cursor:crosshair}
svg#canvas [data-handle=nw],svg#canvas [data-handle=se]{cursor:nwse-resize}
svg#canvas [data-handle=ne],svg#canvas [data-handle=sw]{cursor:nesw-resize}
svg#canvas [data-handle=n],svg#canvas [data-handle=s]{cursor:ns-resize}
svg#canvas [data-handle=e],svg#canvas [data-handle=w]{cursor:ew-resize}
svg#canvas text{-webkit-user-select:none;user-select:none}
.text-editor{position:absolute;display:none;border:1.5px dashed var(--blue);background:rgba(255,255,255,.95);resize:none;outline:none;font-family:var(--font);color:var(--ink);padding:2px 4px;overflow:hidden;z-index:50;line-height:1.25;border-radius:3px;box-shadow:0 2px 10px rgba(8,31,69,.15)}
.toast{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:9px 14px;border-radius:9px;font-size:12.5px;opacity:0;transition:opacity .2s;pointer-events:none;z-index:70;max-width:80%;text-align:center;box-shadow:var(--shadow)}
.toast.show{opacity:1}
.empty-hint{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;color:var(--muted);text-align:center;padding:20px}
.empty-hint .box{max-width:460px}
.empty-hint h2{margin:0 0 6px;font-size:18px;color:var(--ink)}
.empty-hint p{margin:4px 0;font-size:13px}
.empty-hint .btns{pointer-events:auto;display:flex;gap:8px;justify-content:center;margin-top:12px;flex-wrap:wrap}
.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 13px;font:600 12.5px var(--font);color:var(--ink);display:inline-flex;align-items:center;gap:6px;text-decoration:none}
.btn:hover{background:#f2f8fe;border-color:#bcd9f5}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:#1d97ec}
.btn.danger{color:var(--danger);border-color:#f0c9c9}
.btn.danger:hover{background:#fff4f4}
.btn.sm{padding:5px 9px;font-size:12px}
.btn svg{width:15px;height:15px}
.banner{position:absolute;top:10px;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:8px 12px;display:none;gap:10px;align-items:center;z-index:40;font-size:12.5px;max-width:92%}
.banner.show{display:flex}
.canvas-toggles{position:absolute;top:8px;left:8px;display:none;gap:6px;z-index:30}
.canvas-toggles .btn{padding:6px 9px;box-shadow:0 2px 8px rgba(8,31,69,.12)}
.ctx{position:absolute;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:5px;min-width:210px;z-index:300;display:none}
.ctx.open{display:block}

/* ---------- properties ---------- */
.props .row{display:flex;gap:6px;align-items:center;margin:5px 0}
.props .row.top{align-items:flex-start}
.props label{font-size:11.5px;color:var(--muted);min-width:70px;flex:0 0 70px}
.props input[type=text],.props input[type=number],.props input[type=date],.props select,.props textarea{flex:1;min-width:0;width:100%;border:1px solid var(--line);border-radius:6px;padding:5px 7px;font:12.5px var(--font);background:#fff;color:var(--ink)}
.props textarea{resize:vertical;min-height:52px;line-height:1.35}
.props input[type=color]{width:36px;height:28px;padding:1px 2px;border:1px solid var(--line);border-radius:6px;background:#fff;flex:0 0 36px}
.props input[type=range]{flex:1;min-width:0}
.props input[type=checkbox]{width:16px;height:16px;margin:0}
.props h4{margin:12px 0 4px;font-size:10.5px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.props h4::after{content:"";flex:1;border-top:1px solid var(--line)}
.props .pair{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.props .pair .row{margin:0}
.props .pair label{min-width:16px;flex:0 0 16px}
.props .chips{display:flex;flex-wrap:wrap;gap:4px}
.props .chip{border:1px solid var(--line);background:#fff;border-radius:6px;padding:4px 7px;font:600 11.5px var(--font);color:var(--muted)}
.props .chip[aria-pressed=true]{background:#e3f0fc;border-color:#bcd9f5;color:var(--blue-dark)}
.props .chip svg{width:14px;height:14px;display:block}
.props .hint{font-size:11px;color:var(--muted);margin:2px 0 6px}
.props .kv{display:grid;grid-template-columns:1fr 1.3fr 24px;gap:4px;margin:4px 0}
.props .kv input{width:100%}
.props .kv button{border:0;background:none;color:var(--muted);border-radius:6px;font-size:14px}
.props .kv button:hover{background:#fff0f0;color:var(--danger)}
.props .type-badge{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:12.5px}
.props .type-badge svg{width:22px;height:22px}
.props .swatches{display:flex;gap:3px;flex-wrap:wrap;margin:2px 0 4px}
.props .swatches button{width:18px;height:18px;border-radius:5px;border:1px solid rgba(0,0,0,.12);padding:0}
.props .outline{list-style:none;padding:0;margin:0;max-height:220px;overflow:auto;border:1px solid var(--line);border-radius:8px}
.props .outline li button{width:100%;border:0;background:none;text-align:left;padding:5px 8px;font:12px var(--font);display:flex;gap:6px;align-items:center;border-radius:0}
.props .outline li button:hover{background:#eef4fb}
.props .outline li button.sel{background:#e3f0fc;color:var(--blue-dark)}
.props .outline li button svg{width:16px;height:16px;flex:0 0 auto}
.checks{list-style:none;padding:0;margin:6px 0 0}
.checks li{border:1px solid var(--line);border-radius:8px;padding:6px 8px;margin:4px 0;display:flex;gap:8px;align-items:flex-start;font-size:12px}
.checks li .sev{font-size:10px;font-weight:800;padding:2px 6px;border-radius:5px;letter-spacing:.3px;flex:0 0 auto;margin-top:1px}
.checks li.error .sev{background:#fde8e8;color:var(--danger)}
.checks li.warn .sev{background:#fff3df;color:#9a5b00}
.checks li.info .sev{background:#e3f0fc;color:var(--blue-dark)}
.checks li.ok .sev{background:#e4f6ea;color:var(--ok)}
.checks li button{border:0;background:none;color:var(--blue-dark);font:600 11.5px var(--font);padding:0;text-decoration:underline;margin-left:auto;white-space:nowrap}
.checks-summary{font-size:12px;margin:8px 0 2px;color:var(--muted)}

/* ---------- status bar ---------- */
.statusbar{display:flex;align-items:center;gap:12px;padding:0 10px;height:36px;background:#fff;border-top:1px solid var(--line);font-size:12px;color:var(--muted);flex:0 0 auto;overflow:hidden}
.pages{display:flex;gap:3px;align-items:center;overflow-x:auto;scrollbar-width:none;max-width:55%}
.page-tab{border:1px solid var(--line);background:#f7fafd;border-radius:7px;padding:4px 10px;font:600 12px var(--font);color:var(--ink);white-space:nowrap}
.page-tab[aria-selected=true]{background:var(--navy);color:#fff;border-color:var(--navy)}
.page-add{border:1px dashed var(--line);background:#fff;border-radius:7px;width:28px;height:27px;font-size:16px;line-height:1;color:var(--muted)}
.status-right{margin-left:auto;display:flex;gap:14px;align-items:center;white-space:nowrap}
.status-right .saved{color:var(--ok);font-weight:600}
.badge{display:inline-block;padding:2px 7px;border-radius:6px;font-size:10.5px;font-weight:800;letter-spacing:.4px}
.badge.hld{background:#e3f0fc;color:var(--blue-dark)}
.badge.lld{background:#eee7fb;color:#5b2ec4}
.kbd{font-family:var(--mono);font-size:11px;background:#f1f5fa;border:1px solid var(--line);border-radius:4px;padding:0 5px;color:var(--ink)}

/* ---------- modals ---------- */
.modal-backdrop{position:fixed;inset:0;background:rgba(6,22,51,.5);display:none;align-items:center;justify-content:center;z-index:500;padding:18px}
.modal-backdrop.open{display:flex}
.modal{background:#fff;border-radius:14px;box-shadow:var(--shadow);max-width:900px;width:100%;max-height:92vh;overflow:auto;padding:20px 22px;position:relative}
.modal.narrow{max-width:560px}
.modal h2{margin:0 0 6px;font-size:18px}
.modal .lead{color:var(--muted);margin:0 0 14px;font-size:13px}
.modal .x{position:absolute;top:10px;right:12px;border:0;background:none;font-size:22px;color:var(--muted);line-height:1;padding:4px 8px;border-radius:8px}
.modal .x:hover{background:#eef4fb}
.modal .actions{display:flex;gap:8px;justify-content:flex-end;margin-top:16px;flex-wrap:wrap}
.tpl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.tpl{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;text-align:left;padding:0;display:flex;flex-direction:column}
.tpl:hover,.tpl:focus-visible{border-color:var(--blue);box-shadow:0 4px 16px rgba(7,139,232,.15)}
.tpl .prev{background:#f7fafd;border-bottom:1px solid var(--line);height:150px;display:grid;place-items:center;padding:8px;overflow:hidden}
.tpl .prev svg{max-width:100%;max-height:134px;width:auto;height:auto}
.tpl .info{padding:10px 12px}
.tpl .info b{display:block;font-size:13px}
.tpl .info span{font-size:11.5px;color:var(--muted)}
.tpl .tag{display:inline-block;font-size:10px;font-weight:800;padding:2px 6px;border-radius:5px;background:#e3f0fc;color:var(--blue-dark);margin-bottom:5px;letter-spacing:.3px}
.form-grid{display:grid;grid-template-columns:130px 1fr;gap:10px 12px;align-items:center}
.form-grid label{font-size:12.5px;color:var(--muted)}
.form-grid select,.form-grid input[type=text]{border:1px solid var(--line);border-radius:7px;padding:7px 9px;font:13px var(--font);width:100%}
.radios{display:flex;gap:6px;flex-wrap:wrap}
.radios label{border:1px solid var(--line);border-radius:8px;padding:6px 10px;font:600 12px var(--font);color:var(--ink);display:inline-flex;gap:6px;align-items:center;cursor:pointer}
.radios label:has(input:checked){background:#e3f0fc;border-color:#bcd9f5;color:var(--blue-dark)}
.radios input{margin:0}
.shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:6px 22px;font-size:12.5px}
.shortcuts div{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dashed var(--line)}
.shortcuts h3{grid-column:1/-1;margin:12px 0 0;font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted)}
.about p{font-size:13px;line-height:1.55}
.about ul{padding-left:18px;font-size:13px}
.notice{padding:10px 12px;background:#fff7e7;border:1px solid #f4d694;border-radius:8px;color:#705315;font-size:12.5px}
.notice.ok{background:#e9f8ee;border-color:#b9e4c6;color:#165c33}

/* print */
#printArea{display:none}
@media print{body>*{display:none!important}#printArea{display:block!important;position:static}#printArea svg{width:100%;height:auto;max-height:100vh}}

/* responsive */
@media (max-width:1100px){.hbtn .lbl{display:none}.hbtn{padding:0 9px}}
@media (max-width:980px){
  .app-header{height:48px;gap:8px;padding:0 8px;overflow-x:auto;scrollbar-width:none}
  .app-header::-webkit-scrollbar{display:none}
  .app-name{font-size:13px}
  .hbtn{height:32px;padding:0 8px;flex:0 0 auto}
  #btnShortcuts,#btnAbout{display:none}
  .header-actions{gap:4px}
  .statusbar{gap:8px;font-size:11px;padding:0 6px}
  .statusbar #statTool,.statusbar #statPos{display:none}
  .workspace,.workspace.lib-closed,.workspace.props-closed,.workspace.lib-closed.props-closed{grid-template-columns:minmax(0,1fr)}
  .panel{position:absolute;top:0;bottom:0;width:min(88vw,300px);z-index:90;box-shadow:var(--shadow);transform:translateX(-105%);transition:transform .15s;visibility:visible!important}
  .panel.right{right:0;transform:translateX(105%)}
  .workspace.lib-open .panel.left{transform:none}
  .workspace.props-open .panel.right{transform:none}
  .doc-title{display:none}
  .canvas-toggles{display:flex}
  .app-name small{display:none}
  .back{display:none}
  .shortcuts{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- library tools (v1.1) ---- */
.lib-tools{display:flex;gap:4px;padding:6px 10px 0;align-items:center}
.lib-tools select{flex:1;min-width:0;font:inherit;font-size:12px;padding:5px 6px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.lib-tools .btn.sm{padding:4px 8px;line-height:1}
.lib-cat summary .cnt{margin-left:auto}
.shape.anchor{cursor:move}
#libBody{position:relative}
/* ---- small-screen drawers (v1.1.1) ---- */
@media (max-width:980px){
  .canvas-toggles .btn.primary{background:var(--blue);color:#fff;border-color:var(--blue)}
  .canvas-toggles .btn[aria-expanded="true"]{box-shadow:inset 0 0 0 2px var(--navy)}
  .panel.left .panel-head::after{content:"tap a shape to add it";font-size:11px;color:var(--muted);font-weight:400;margin-left:auto;margin-right:6px}
}