:root{
  --bg:#ffffff; --fg:#0b0d10; --muted:#555; --line:#d7dee9; --accent:#2a78ff;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;}
header{padding:12px 16px;background:#f7f9fc;border-bottom:2px solid #000}
footer{padding:8px 16px;background:#f7f9fc;border-top:2px solid #000;text-align:center;font-size:14px}
h1{margin:0}
.subtitle{margin:4px 0 10px;color:var(--muted)}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0;align-items:center}
.file-btn{background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px;cursor:pointer;font-weight:600}
.file-btn input{display:none}
.actions button{background:#eef2f8;color:var(--fg);border:1px solid var(--line);padding:8px 12px;border-radius:8px;cursor:pointer}
#debugBtn[data-on="true"]{background:#d93025;color:#fff;border-color:#b71c1c}
.mode{display:flex;gap:6px;align-items:center;border:1px solid var(--line);padding:6px 8px;border-radius:8px;background:#fff;font-size:14px}
.mode input[type=number]{width:56px}
select,input{font:inherit}
.tracks{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;margin:6px 0;font-size:14px}
.tracks label{display:flex;gap:4px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:6px;padding:3px 8px}
.status{margin:6px 0;color:var(--muted);font-size:14px}
main{padding:12px 16px}
.song-title{text-align:center;margin:4px 0 8px;font-size:20px}
.svg-wrap{display:flex;flex-direction:column;align-items:center;gap:24px;overflow:auto}
.page{border:2px solid #2e7d32;padding:10px 14px;background:#fff;max-width:100%;overflow:auto}
.page-cap{text-align:center;font-weight:700;margin:2px 0 8px}
.debug{background:#0b0d10;color:#c8f7c5;padding:12px;border-radius:8px;font-size:12px;overflow:auto;max-height:50vh}

@media print{
  header, footer, .debug{display:none !important}
  main{padding:0}
  .svg-wrap{gap:0;overflow:visible}
  .page{border:2px solid #2e7d32;page-break-after:always;break-after:page;overflow:visible}
  .page svg{width:100%;height:auto;max-height:24cm}
  .song-title{display:none}
}