:root{
  --bg:#f5f5f7;
  --card:#fff;
  --text:#111;
  --muted:#6b7280;
  --line:#e5e7eb;
  --shadow: 0 10px 30px rgba(0,0,0,.08);
  --radius:14px;
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,Segoe UI,Arial}
a{color:inherit;text-decoration:none}

.topbar{
  position:sticky; top:0;
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 16px;
  background:#111; color:#fff;
}
.brand{display:flex; gap:12px; align-items:center}
.logoDot{width:16px;height:16px;border-radius:999px;background:#22c55e}
.brandTitle{font-weight:700}
.container{max-width:1100px;margin:0 auto;padding:16px}

.card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:16px;
  margin:14px 0;
}

.card.inner{box-shadow:none;border:1px solid var(--line);}

h2{margin:0 0 12px}
h3{margin:0 0 10px}

label{display:block;margin-top:10px;font-size:12px;color:var(--muted)}
input, select, button{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  outline:none;
}
input:focus, select:focus{border-color:#111}

.row{display:flex;gap:10px;align-items:end;margin-top:12px}
.row.wrap{flex-wrap:wrap}
.grow{flex:1}

.btn{
  width:auto;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid #111;
  background:#111;
  color:#fff;
  cursor:pointer;
}
.btn.secondary{
  background:#fff;
  color:#111;
}
.btn:disabled{opacity:.5;cursor:not-allowed}

.muted{color:var(--muted)}
.small{font-size:12px}
.hidden{display:none !important}

.grid2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
@media (max-width: 900px){
  .grid2{grid-template-columns:1fr}
}

.tabs{display:flex;gap:8px;margin:14px 0}
.tab{
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  cursor:pointer;
}
.tab.active{border-color:#111}

.tableWrap{overflow:auto;border:1px solid var(--line);border-radius:12px}
.table{width:100%;border-collapse:collapse;min-width:700px}
.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left}
.table th{background:#fafafa;font-size:12px;color:var(--muted)}
.table td:last-child{text-align:right}

.msg{margin-top:12px;white-space:pre-wrap;color:#b00020}
.pre{background:#0b1020;color:#e5e7eb;padding:12px;border-radius:12px;overflow:auto}

.logoBox{
  margin-top:10px;
  border:1px dashed var(--line);
  border-radius:12px;
  padding:10px;
  min-height:80px;
  display:flex;
  align-items:center;
  justify-content:center;
}
#logoPreview{max-width:240px;max-height:120px;object-fit:contain}

.previewGrid{
  display:grid;
  grid-template-columns: 1.3fr .7fr;
  gap:14px;
  margin-top:14px;
}
@media (max-width: 900px){
  .previewGrid{grid-template-columns:1fr}
}

#receiptCanvas{
  width:100%;
  max-width:520px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}

.footer{padding:18px;text-align:center}