/* css/style.css */
*{box-sizing:border-box;font-family:Inter,system-ui,Arial,Helvetica,sans-serif}
:root{
  --bg:#f5f7fa;
  --card:#ffffff;
  --muted:#94a3b8;
  --accent:#0f172a;
  --brand:#111827;
}
body{margin:0;background:var(--bg);color:#0f172a}
.container{max-width:1100px;margin:20px auto;padding:0 16px}
.topbar{background:linear-gradient(90deg,#0f172a,#0b1220);color:#fff;padding:12px 0;box-shadow:0 2px 8px rgba(2,6,23,0.06)}
.topbar .container{display:flex;align-items:center;gap:12px}
.topbar .brand{font-weight:700;color:#fff;text-decoration:none;font-size:18px}
.topbar .navlinks{margin-left:auto;display:flex;gap:14px}
.topbar .navlinks a{color:#cbd5e1;text-decoration:none;padding:8px 10px;border-radius:8px}
.topbar .navlinks a:hover{background:rgba(255,255,255,0.03)}
.card{background:var(--card);border-radius:10px;padding:18px;box-shadow:0 6px 18px rgba(2,6,23,0.06)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.small-card{padding:12px;border-radius:8px;background:linear-gradient(180deg,#fff,#fbfdff);text-align:center}
.table{width:100%;border-collapse:collapse;margin-top:12px}
.table th,.table td{padding:10px;border-bottom:1px solid #eef2f7;text-align:left}
.btn{display:inline-block;padding:8px 12px;border-radius:8px;background:var(--brand);color:#fff;text-decoration:none;border:none;cursor:pointer}
.btn.sm{padding:6px 8px;font-size:13px}
.form-row{display:flex;gap:12px;margin-bottom:12px}
.form-row .col{flex:1}
.input,textarea,select{width:100%;padding:10px;border:1px solid #e6eef6;border-radius:8px}
.label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.footer{padding:18px;text-align:center;color:var(--muted);margin-top:24px}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:#f1f5f9;color:#0f172a;font-weight:600}
.low-stock{color:#b91c1c;font-weight:700}

/* small helpers */
.row{display:flex;gap:12px;align-items:center}
.col-2{flex:2}
.col-1{flex:1}

@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .topbar .navlinks{display:none}
}
@media(max-width:520px){
  .grid{grid-template-columns:1fr}
  .form-row{flex-direction:column}
}