body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;background:#f5f5f7;color:#111}
header{padding:16px 16px 0}
h1{margin:0 0 6px;font-size:22px}
.sub{margin:0 0 12px;color:#555;font-size:13px}
main{display:grid;gap:12px;padding:12px 16px 20px}
@media(min-width:900px){main{grid-template-columns:1fr 1fr}}
.panel{background:#fff;border-radius:14px;padding:14px;box-shadow:0 1px 10px rgba(0,0,0,.06)}
.row{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
button{border:0;border-radius:12px;padding:12px 14px;font-weight:600;background:#1f6feb;color:#fff}
button.secondary{background:#e9e9ee;color:#111}
button.danger{background:#e5484d}
button.primary{background:#111}
button:disabled{opacity:.5}
#readerWrap{border-radius:14px;overflow:hidden;background:#000}
#reader{width:100%}
.status{margin-top:10px;font-size:13px;color:#444}
.item{display:flex;gap:10px;align-items:center;justify-content:space-between;padding:10px;border-bottom:1px solid #eee}
.item:last-child{border-bottom:0}
.itemTitle{font-weight:700}
.itemSub{font-size:12px;color:#666;margin-top:2px}
.qtyControls{display:flex;gap:8px;align-items:center}
.qtyBtn{background:#e9e9ee;color:#111;padding:8px 10px;border-radius:10px;font-weight:800}
.qty{min-width:26px;text-align:center;font-weight:800}
.price{font-weight:800;white-space:nowrap}
.totalRow{display:flex;justify-content:space-between;align-items:center;padding-top:10px;margin-top:10px;border-top:1px solid #eee}
.totalLabel{font-weight:800}
.totalValue{font-weight:900;font-size:18px}
.hidden{display:none}
textarea{width:100%;min-height:180px;border-radius:12px;border:1px solid #ddd;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
footer{padding:0 16px 18px;color:#777}

.miniRow{display:flex;justify-content:space-between;align-items:center;margin-top:8px;color:#444}
.miniLabel{font-weight:700}
.miniValue{font-weight:800;white-space:nowrap}
button.toggleOn{background:#111;color:#fff}