*{box-sizing:border-box} body{font-family:system-ui,Segoe UI,Arial,sans-serif;margin:0;background:#f6f7fb;color:#222}
.container{max-width:1100px;margin:24px auto;padding:0 16px}
.container.narrow{max-width:420px}
.topnav{background:#111;color:#fff;display:flex;gap:12px;padding:10px 16px;align-items:center}
.topnav a{color:#fff;text-decoration:none;padding:8px 10px;border-radius:8px}
.topnav a:hover{background:#2a2a2a}
.topnav .right{margin-left:auto;background:#444}
h1,h2{margin:10px 0 18px}
.card{background:#fff;border-radius:16px;padding:16px;margin:12px 0;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:1fr 1fr}
.grid.cols-3{grid-template-columns:1fr 1fr 1fr}
label{display:block;font-size:14px;margin-top:10px;color:#444}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:10px;margin-top:6px}
button{padding:10px 14px;border:none;border-radius:12px;background:#0f62fe;color:#fff;cursor:pointer}
button.secondary{background:#666}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.05)}
th,td{padding:10px;border-bottom:1px solid #eee;text-align:left}
tr:hover td{background:#fafafa}
.actions a, .actions form{display:inline-block;margin-right:6px}
.alert{padding:10px 12px;border-radius:10px;margin:10px 0}
.alert.error{background:#ffe2e0;color:#8a1f11}
.alert.success{background:#e4f6e8;color:#0b6b2e}
.badge{display:inline-block;background:#eef;border:1px solid #dde;padding:3px 8px;border-radius:999px;font-size:12px}
.muted{color:#666;font-size:12px}
.total{font-size:20px;font-weight:bold}
/* POS bill (78mm) */
@media print{
  .no-print{display:none!important}
  
}
.receipt{width:85mm;margin:0 auto;background:#fff;padding:0px;font-family:serif}
.receipt .center{text-align:center}
.receipt .right{text-align:right}
.receipt hr{border:0;border-top:1px dashed #aaa;margin:0px 0}
.receipt table{width:100%}
.receipt th,.receipt td{padding:4px}
.logo{height:0px}