:root{font-family:"Microsoft JhengHei",system-ui,sans-serif;color:#172033;background:#f5f7fb}
*{box-sizing:border-box}body{margin:0}
header{display:flex;justify-content:space-between;align-items:center;padding:18px 24px;background:#173b67;color:#fff}
header h1{margin:0;font-size:24px}header p{margin:4px 0 0;opacity:.8}
#health{background:#ffffff24;padding:8px 12px;border-radius:999px}
button{border:0;border-radius:8px;padding:10px 14px;cursor:pointer;font-weight:700}

.layout{
  display:grid;
  grid-template-columns:270px minmax(0,1fr);
  min-height:calc(100vh - 96px);
}

.sidebar{
  background:#fff;
  border-right:1px solid #dce2ea;
  padding:14px 10px 24px;
  position:sticky;
  top:0;
  height:calc(100vh - 96px);
  overflow-y:auto;
  z-index:12;
}

.nav-group{margin-bottom:18px}
.nav-group-title{
  padding:6px 14px;
  color:#8792a6;
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
}
.nav-group button{
  display:block;
  width:100%;
  padding:12px 14px;
  margin:3px 0;
  background:transparent;
  color:#172033;
  text-align:left;
  font-size:16px;
  border-left:4px solid transparent;
}
.nav-group button:hover{background:#f1f5fa}
.nav-group button.active{
  background:#e4eefb;
  color:#124f8c;
  border-left-color:#1769aa;
}

.mobile-menu-button{
  display:none;
  width:100%;
  border-radius:0;
  padding:12px 16px;
  background:#fff;
  color:#173b67;
  text-align:left;
  border-bottom:1px solid #dce2ea;
}

.sidebar-backdrop{
  position:fixed;
  inset:0;
  background:#0007;
  z-index:11;
}
button.primary{background:#1769aa;color:#fff}button.success{background:#087f5b;color:#fff}
button.danger{background:#b42318;color:#fff}button.secondary{background:#e9eef6;color:#172033}
main{padding:18px;width:100%;min-width:0;max-width:1600px;margin:0 auto}
.card{background:#fff;border:1px solid #dde4ee;border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 2px 8px #16263a0d}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
label{display:block;font-size:14px;font-weight:700;margin-bottom:5px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid #bcc8d6;border-radius:8px;font-size:16px;background:#fff}
.scan-row{display:grid;grid-template-columns:1fr auto;gap:8px}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;align-items:center}
table{width:100%;border-collapse:collapse;min-width:900px}
th,td{border-bottom:1px solid #e2e8f0;padding:9px;text-align:left;white-space:nowrap}
th{background:#edf3fa;position:sticky;top:59px}.table-wrap{overflow:auto;max-height:65vh;border:1px solid #e0e6ef;border-radius:10px}
.muted{color:#667085}.warn{color:#b54708}.good{color:#067647}.kpi{font-size:25px;font-weight:800}
.hidden{display:none!important}.modal{position:fixed;inset:0;background:#0009;z-index:20;display:grid;place-items:center;padding:16px}
.modal-card{width:min(620px,100%);background:#fff;border-radius:14px;padding:16px}.modal-head{display:flex;justify-content:space-between;align-items:center}
#reader{width:100%;min-height:320px}#toast{position:fixed;right:18px;bottom:18px;background:#172033;color:#fff;padding:12px 16px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s;z-index:30}
#toast.show{opacity:1}.danger-box{border:1px solid #fda29b;background:#fff4f3}.pill{display:inline-block;padding:3px 8px;border-radius:999px;background:#edf3fa}
@media(max-width:800px){
  header{padding:14px;align-items:flex-start}
  header h1{font-size:19px}
  .mobile-menu-button{display:block;position:sticky;top:0;z-index:10}
  .layout{display:block;min-height:auto}
  .sidebar{
    position:fixed;
    top:0;
    left:0;
    width:min(86vw,320px);
    height:100vh;
    transform:translateX(-105%);
    transition:transform .2s ease;
    box-shadow:8px 0 24px #0002;
    z-index:12;
    padding-top:16px;
  }
  .sidebar.open{transform:translateX(0)}
  main{padding:10px}
  .card{padding:12px}
  button{padding:12px}
}

.inventory-admin-card{
  margin-bottom:24px;
  border-left:5px solid #1769aa;
}

.inventory-admin-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.inventory-admin-header h3{
  margin:0 0 6px;
}

.inventory-admin-header p{
  margin:0;
}

.inventory-admin-actions{
  margin-top:0;
  flex-shrink:0;
}

@media(max-width:800px){
  .inventory-admin-header{
    align-items:stretch;
    flex-direction:column;
  }

  .inventory-admin-actions{
    width:100%;
  }

  .inventory-admin-actions button{
    flex:1 1 auto;
  }
}