/* Soundwave Prints - QR code designer */
:root{
  --ink:#0B0B09; --muted:#6b6a66; --line:#e4e1da; --bg:#FBF9FF; --card:#fff;
  --accent:#E85D3F; --ok:#1f7a4d; --warn:#8a5a00; --warnbg:#fff6e5; --warnline:#f0d9a8;
  --err:#8f1d1d; --errbg:#fdecec; --errline:#f2c6c6;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
.top{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:16px 22px;border-bottom:1px solid var(--line);background:#fff;
  position:sticky;top:0;z-index:10;
}
.brand{font-weight:800;letter-spacing:-.02em;text-decoration:none;font-size:1.05rem}
.brand span{color:var(--accent)}
.back{font-size:.88rem;color:var(--muted);text-decoration:none}
.back:hover{color:var(--ink)}
main{max-width:1180px;margin:0 auto;padding:26px 22px 60px}
.intro{max-width:760px;margin:0 0 22px}
h1{font-size:1.85rem;letter-spacing:-.025em;margin:0 0 8px}
.intro p{margin:0;color:var(--muted);font-size:.98rem}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:24px;align-items:start}
@media (max-width:960px){
  .grid{grid-template-columns:1fr}
  /* On a phone the preview would otherwise sit below every control, so you cannot see
     what you are changing. Pin it above the form while editing, and drop the secondary
     print-check card to keep the pinned block small. */
  .preview{order:-1;position:sticky;top:58px;z-index:5;padding-bottom:2px}
  .preview .card{box-shadow:0 6px 18px rgba(0,0,0,.07)}
  .pvstage{min-height:170px;padding:10px}
  .smallcard{display:none}
}

.sec{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 16px 18px;margin:0 0 14px}
.sec h2{font-size:.98rem;margin:0 0 12px;display:flex;align-items:center;gap:9px;font-weight:700}
.sec h2 .n{
  width:22px;height:22px;border-radius:50%;background:var(--ink);color:#fff;font-size:.74rem;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.sec h2 .opt{font-weight:500;font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.field{display:block;font-size:.83rem;font-weight:600;margin:0 0 6px}
.mini{display:block;font-size:.79rem;color:var(--muted);margin-bottom:5px}
.help{font-size:.82rem;color:var(--muted);margin:7px 0 0}
.help.center{text-align:center}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.84rem;color:var(--muted)}
.input{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;
  font-size:.95rem;color:var(--ink);font-family:inherit;
}
.input:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
input[type=color]{
  width:64px;height:44px;border:1px solid var(--line);border-radius:9px;background:#fff;
  cursor:pointer;padding:2px;
}
input[type=range]{width:100%;accent-color:var(--accent)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:10px}
.row3{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-top:10px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;flex-wrap:wrap}
.seg button{
  border:0;background:transparent;color:var(--ink);padding:9px 13px;font-size:.85rem;font-weight:600;
  cursor:pointer;font-family:inherit;
}
.seg button+button{border-left:1px solid var(--line)}
.seg button.on{background:var(--ink);color:#fff}
.btn{
  border:1px solid var(--line);background:#fff;color:var(--ink);padding:11px 16px;border-radius:10px;
  font-size:.9rem;font-weight:600;cursor:pointer;font-family:inherit;
}
.btn:hover{border-color:var(--ink)}
.btn.accent{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.accent:hover{background:#000}
.btn.ghost{background:transparent}
.btn.sm{padding:8px 12px;font-size:.82rem}
.hidden{display:none !important}

.warnbox{
  margin-top:11px;background:var(--warnbg);border:1px solid var(--warnline);color:var(--warn);
  border-radius:10px;padding:11px 13px;font-size:.83rem;
}
.warnbox strong{display:block;margin-bottom:3px}
.banner{border-radius:10px;padding:11px 13px;font-size:.85rem;margin:0 0 10px}
.banner.err{background:var(--errbg);border:1px solid var(--errline);color:var(--err)}
.banner.ok{background:#eefaf2;border:1px solid #c3e8d3;color:var(--ok)}
.banner.warn{background:var(--warnbg);border:1px solid var(--warnline);color:var(--warn)}

.preview{position:sticky;top:78px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:14px}
.smallcard{padding:14px 16px}
.smallcard strong{font-size:.9rem}
.pvhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.pill{font-size:.72rem;background:#f1efe9;color:var(--muted);padding:3px 9px;border-radius:999px;font-weight:600}
.pvstage{
  display:flex;align-items:center;justify-content:center;min-height:290px;padding:14px;border-radius:12px;
  background:repeating-conic-gradient(#eee 0% 25%, #fff 0% 50%) 0 0 / 22px 22px;
}
.pvstage svg,.pvstage canvas{max-width:100%;height:auto;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.13)}
.pvstage .empty{color:var(--muted);font-size:.85rem;text-align:center;padding:0 20px}
#printcheck{margin:8px 0 0;padding-left:18px;font-size:.83rem;color:var(--muted)}
#printcheck li{margin:3px 0}
footer{border-top:1px solid var(--line);background:#fff;padding:18px 22px;font-size:.82rem;color:var(--muted);text-align:center}
footer p{margin:0}