@import url('https://fonts.googleapis.com/css2?family=Anton&family=Archivo+Black&family=Barlow:wght@400;600;700&family=Bebas+Neue&family=Black+Ops+One&family=Caveat:wght@400;700&family=Cinzel:wght@400;600;700&family=Comfortaa:wght@400;600;700&family=Dancing+Script:wght@400;600;700&family=DM+Sans:wght@400;600;700&family=Fjalla+One&family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;600;700&family=Inter:wght@400;600;700&family=Josefin+Sans:wght@400;600;700&family=Lato:wght@400;700&family=Lobster&family=Montserrat:wght@400;600;700&family=Merriweather:wght@400;700&family=Nunito:wght@400;600;700&family=Open+Sans:wght@400;600;700&family=Oswald:wght@400;600;700&family=Pacifico&family=Playfair+Display:wght@400;600;700&family=Poppins:wght@400;600;700&family=Quicksand:wght@400;600;700&family=Raleway:wght@400;600;700&family=Roboto:wght@400;500;700&family=Roboto+Condensed:wght@400;700&family=Roboto+Mono:wght@400;600&family=Rubik:wght@400;600;700&family=Source+Sans+3:wght@400;600;700&family=Teko:wght@400;600;700&family=Ubuntu:wght@400;500;700&display=swap');
  :root{
    --bg:#f5f7f8; --card:#fff; --text:#111827; --muted:#6b7280; --line:#dfe4e8;
    --accent:#111827; --soft:#eef1f4; --danger:#b91c1c; --radius:18px;
  }
  *{box-sizing:border-box}
  body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
  .app{max-width:1280px;margin:0 auto;padding:20px}
  .layout{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:20px;align-items:start}
  .stage-card,.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(0,0,0,.04)}
  .stage-card{padding:18px;min-height:640px}.panel{padding:18px;position:sticky;top:16px}
  .topbar{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:16px}
  .window-tabs{display:flex;gap:8px;overflow:auto;scrollbar-width:none}.window-tabs::-webkit-scrollbar{display:none}
  button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 13px;font:inherit;font-weight:600;cursor:pointer}
  button.active,.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)} .btn-soft{background:var(--soft)} .btn-danger{color:var(--danger)}
  .canvas-wrap{display:flex;align-items:center;justify-content:center;min-height:530px;padding:24px;border-radius:16px;background:#fafafa;border:1px solid var(--line);overflow:hidden}
  .window-shell{position:relative;border:10px solid #282d32;border-radius:3px;background:#cbd5dc;box-shadow:0 22px 50px rgba(0,0,0,.12);overflow:hidden;touch-action:none}
  .glass{position:absolute;inset:0;overflow:hidden;background:linear-gradient(135deg,rgba(255,255,255,.4),rgba(255,255,255,.08)),linear-gradient(180deg,#d9e9f2,#bcd1dc)}
  .glass:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 10%,rgba(255,255,255,.28) 35%,transparent 60%);pointer-events:none}
  .shape{position:absolute;background:rgba(232,237,241,.92);border:1px solid rgba(255,255,255,.75);box-shadow:inset 0 0 0 1px rgba(0,0,0,.03);touch-action:none;z-index:2}
  .shape.selected{outline:2px solid #111827;outline-offset:-2px}
  .text-shape{
    background:transparent!important;
    border:1px dashed rgba(17,24,39,.35);
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:visible;
    white-space:nowrap;
    color:#111827;
    line-height:1;
    padding:0 4px;
  }
  .text-shape .text-content{
    pointer-events:none;
    user-select:none;
    white-space:nowrap;
  }
  .handle{display:none;position:absolute;background:#111827;border:2px solid #fff;border-radius:50%;width:22px;height:22px;z-index:6}
  .shape.selected .handle{display:block}
  .handle.top{left:50%;top:-11px;transform:translateX(-50%);cursor:ns-resize}
  .handle.bottom{left:50%;bottom:-11px;transform:translateX(-50%);cursor:ns-resize}
  .handle.right{right:-11px;top:50%;transform:translateY(-50%);cursor:ew-resize}
  .handle.left{left:-11px;top:50%;transform:translateY(-50%);cursor:ew-resize}

  .gap-marker{
    position:absolute; z-index:5; border:1px dashed rgba(17,24,39,.45);
    background:rgba(255,255,255,.20); cursor:pointer; touch-action:manipulation;
  }
  .gap-marker:hover,.gap-marker.selected{background:rgba(17,24,39,.08);border-color:#111827}
  .gap-badge{
    position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
    background:#111827;color:#fff;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:700;
    white-space:nowrap;pointer-events:none;
  }

  .measurement{position:absolute;font-size:11px;background:rgba(17,24,39,.86);color:#fff;padding:4px 7px;border-radius:999px;pointer-events:none;z-index:10}
  .measurement.x{top:6px;left:50%;transform:translateX(-50%)}.measurement.y{right:6px;top:50%;transform:translateY(-50%) rotate(90deg)}
  h2,h3{margin:0}h2{font-size:18px}h3{font-size:14px;margin-bottom:10px}
  .section{padding:16px 0;border-bottom:1px solid var(--line)}.section:last-child{border-bottom:0}
  .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  label{display:flex;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600}
  input,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;font:inherit;color:var(--text);outline:none}
  input[type="range"]{padding:0;border:0}
  .actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.actions button{font-size:13px}
  .price-box{background:#111827;color:#fff;border-radius:16px;padding:16px}.price-main{display:flex;align-items:flex-end;justify-content:space-between;gap:10px}
  .price{font-size:28px;font-weight:800}.small{font-size:12px;color:var(--muted)}.price-box .small{color:#cbd5e1}
  .pill{font-size:11px;padding:5px 8px;border-radius:999px;background:#f1f5f9;color:#475569}
  .title-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.empty{color:var(--muted);font-size:13px}
  .slider-block{margin-top:12px;padding:12px;border-radius:14px;background:#f8fafc;border:1px solid var(--line)}
  .helper{font-size:11px;color:var(--muted);margin-top:6px;line-height:1.45}
  .stripe-group{position:absolute;inset:0;pointer-events:none}
  .stripe-line{position:absolute;left:0;width:100%;background:rgba(232,237,241,.92);border-top:1px solid rgba(255,255,255,.7);border-bottom:1px solid rgba(255,255,255,.7)}

  @media(max-width:900px){.app{padding:10px}.layout{grid-template-columns:1fr}.panel{position:static}.stage-card{min-height:auto;padding:12px}.canvas-wrap{min-height:430px;padding:14px}}
  @media(max-width:560px){.row,.actions{grid-template-columns:1fr 1fr}.panel{padding:14px}.canvas-wrap{min-height:390px}.topbar{flex-direction:column;align-items:stretch}.window-tabs{width:100%}input,select,button{font-size:16px}.gap-badge{font-size:10px;padding:3px 6px}}

  .color-search{margin-top:8px}
  .color-grid{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;
    max-height:285px;overflow:auto;padding:3px;margin-top:9px;
  }
  .color-swatch{
    min-width:0;padding:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;
    background:#fff;text-align:left;font-size:10px;font-weight:600;cursor:pointer;
  }
  .color-swatch.active{outline:2px solid #111827;outline-offset:1px}
  .color-chip{display:block;width:100%;height:35px;border-bottom:1px solid rgba(0,0,0,.12)}
  .color-label{display:block;padding:5px 6px;line-height:1.2;overflow:hidden}
  .color-code{display:block;font-weight:800}
  .color-name{display:block;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
  .selected-color{
    display:flex;align-items:center;gap:9px;margin-top:9px;padding:9px;border:1px solid var(--line);
    border-radius:11px;background:#fff;font-size:12px;
  }
  .selected-color-chip{width:28px;height:28px;border-radius:7px;border:1px solid rgba(0,0,0,.15);flex:0 0 auto}
  @media(max-width:560px){.color-grid{grid-template-columns:repeat(3,minmax(0,1fr));max-height:330px}}


  .font-picker{position:relative}
  .font-picker-button{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;
    min-height:48px;text-align:left;
  }
  .font-picker-current{min-width:0;flex:1}
  .font-picker-current-name{display:block;font-size:11px;color:var(--muted);margin-bottom:2px}
  .font-picker-current-preview{display:block;font-size:20px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .font-picker-menu{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:50;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    max-height:330px;overflow:auto;box-shadow:0 16px 40px rgba(0,0,0,.14);padding:6px;
  }
  .font-picker.open .font-picker-menu{display:block}
  .font-option{
    width:100%;display:block;text-align:left;padding:9px 10px;border:0;border-radius:9px;background:#fff;
    cursor:pointer;
  }
  .font-option:hover,.font-option.active{background:#f1f5f9}
  .font-option-name{display:block;font-size:10px;color:var(--muted);margin-bottom:2px}
  .font-option-preview{display:block;font-size:22px;line-height:1.15;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:400}
  .font-search{margin-bottom:6px}


  .copy-dialog{
    position:fixed; inset:0; display:none; align-items:center; justify-content:center;
    background:rgba(17,24,39,.36); padding:18px; z-index:200;
  }
  .copy-dialog.open{display:flex}
  .copy-card{
    width:min(100%,420px); background:#fff; border-radius:16px; padding:18px;
    border:1px solid var(--line); box-shadow:0 24px 70px rgba(0,0,0,.2);
  }
  .copy-card h3{font-size:18px;margin-bottom:8px}
  .copy-card p{font-size:13px;color:var(--muted);margin:0 0 14px}
  .copy-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  @media(max-width:560px){.copy-actions{grid-template-columns:1fr}}