:root{
  --kl-red:#a11d21;
  --kl-red-dark:#7c1417;
  --kl-gold:#d4af37;
  --kl-gold-light:#f3e3ab;
  --kl-charcoal:#2b2b2e;
  --kl-charcoal-light:#3d3d42;
  --kl-white:#ffffff;
  --kl-bg:#f6f5f2;
  --kl-border:#e7e3da;
  --kl-success:#1e7e34;
  --kl-warning:#b8860b;
  --kl-danger:#a11d21;
  --sidebar-w:250px;
}

*{box-sizing:border-box;}
body{
  background:var(--kl-bg);
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--kl-charcoal);
}

.kl-shell{display:flex;min-height:100vh;}

/* ---------- Sidebar ---------- */
.kl-sidebar{
  width:var(--sidebar-w);
  background:linear-gradient(180deg, var(--kl-charcoal) 0%, #1d1d1f 100%);
  color:#eee;
  flex-shrink:0;
  position:fixed;
  top:0;left:0;bottom:0;
  overflow-y:auto;
  z-index:1030;
  transition:transform .25s ease;
  border-right:3px solid var(--kl-gold);
}
.kl-brand{display:flex;align-items:center;gap:.75rem;padding:1.25rem 1.1rem;border-bottom:1px solid rgba(255,255,255,.08);}
.kl-brand-mark{
  width:42px;height:42px;border-radius:10px;
  background:var(--kl-red);
  color:var(--kl-gold-light);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;letter-spacing:.5px;
  border:2px solid var(--kl-gold);
}
.kl-brand-text strong{display:block;color:var(--kl-white);font-size:1.02rem;}
.kl-brand-text small{color:var(--kl-gold);letter-spacing:.4px;}

.kl-nav{padding:.75rem .6rem 2rem;}
.kl-nav-section{
  text-transform:uppercase;font-size:.7rem;letter-spacing:1px;
  color:#8a8a90;margin:1.1rem .6rem .35rem;
}
.kl-nav-link{
  display:flex;align-items:center;gap:.65rem;
  padding:.55rem .75rem;border-radius:8px;
  color:#d8d6d2;text-decoration:none;font-size:.92rem;
  margin-bottom:2px;
}
.kl-nav-link i{width:18px;text-align:center;color:var(--kl-gold);}
.kl-nav-link:hover{background:rgba(212,175,55,.12);color:#fff;}
.kl-nav-link.active{background:var(--kl-red);color:#fff;}
.kl-nav-link.active i{color:var(--kl-gold-light);}

/* ---------- Main ---------- */
.kl-main{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-width:0;}
.kl-topbar{
  background:#fff;border-bottom:1px solid var(--kl-border);
  padding:.6rem 1.25rem;position:sticky;top:0;z-index:1020;
}
.kl-topbar-title{font-weight:600;color:var(--kl-charcoal);}
.kl-icon-btn{border:1px solid var(--kl-border);background:#fff;border-radius:8px;width:38px;height:38px;}
.kl-badge-dot{
  position:absolute;top:-4px;right:-4px;background:var(--kl-red);color:#fff;
  font-size:.62rem;border-radius:10px;padding:2px 5px;line-height:1;
}
.kl-notif-menu{width:320px;max-height:360px;overflow:auto;}
.kl-notif-item{display:flex;gap:.6rem;align-items:flex-start;padding:.4rem 0;border-bottom:1px solid #f1f1f1;font-size:.85rem;}
.kl-view-all{color:var(--kl-red);font-weight:600;}
.kl-user-btn{border:1px solid var(--kl-border);background:#fff;border-radius:8px;padding:.35rem .7rem;display:flex;align-items:center;gap:.5rem;}
.kl-avatar{width:28px;height:28px;border-radius:50%;background:var(--kl-red);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;}

.kl-content{padding:1.5rem;flex:1;}
.kl-footer{padding:1rem 1.5rem;color:#999;font-size:.8rem;text-align:center;}

/* ---------- Cards / KPIs ---------- */
.kl-kpi{
  background:#fff;border:1px solid var(--kl-border);border-radius:14px;
  padding:1.1rem 1.25rem;height:100%;position:relative;overflow:hidden;
}
.kl-kpi::before{
  content:"";position:absolute;top:0;left:0;bottom:0;width:5px;background:var(--kl-red);
}
.kl-kpi.gold::before{background:var(--kl-gold);}
.kl-kpi.charcoal::before{background:var(--kl-charcoal);}
.kl-kpi .kl-kpi-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.5px;color:#8a8a90;}
.kl-kpi .kl-kpi-value{font-size:1.65rem;font-weight:700;color:var(--kl-charcoal);}
.kl-kpi .kl-kpi-icon{
  position:absolute;right:1rem;top:1rem;font-size:1.6rem;color:var(--kl-gold);opacity:.5;
}

.kl-card{background:#fff;border:1px solid var(--kl-border);border-radius:14px;padding:1.25rem;}
.kl-card-title{font-weight:600;margin-bottom:1rem;color:var(--kl-charcoal);}

/* ---------- Buttons ---------- */
.btn-kl-primary{background:var(--kl-red);border-color:var(--kl-red);color:#fff;}
.btn-kl-primary:hover{background:var(--kl-red-dark);border-color:var(--kl-red-dark);color:#fff;}
.btn-kl-gold{background:var(--kl-gold);border-color:var(--kl-gold);color:#2b2b2e;font-weight:600;}
.btn-kl-gold:hover{background:#c19c2c;border-color:#c19c2c;color:#2b2b2e;}
.btn-outline-kl{border:1px solid var(--kl-red);color:var(--kl-red);background:#fff;}
.btn-outline-kl:hover{background:var(--kl-red);color:#fff;}

/* ---------- Tables ---------- */
.table-kl thead{background:var(--kl-charcoal);color:#fff;}
.table-kl thead th{border:none;font-weight:500;font-size:.82rem;text-transform:uppercase;letter-spacing:.4px;}
.table-kl tbody tr:hover{background:#faf5e9;}
.badge-stock-ok{background:#e6f4ea;color:var(--kl-success);}
.badge-stock-low{background:#fdf1e0;color:var(--kl-warning);}
.badge-stock-out{background:#fbe7e7;color:var(--kl-danger);}

/* ---------- Login page ---------- */
.kl-login-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at top left, var(--kl-red-dark), var(--kl-charcoal) 70%);
  padding:1rem;
}
.kl-login-card{
  background:#fff;border-radius:18px;padding:2.5rem 2.25rem;max-width:400px;width:100%;
  box-shadow:0 25px 60px rgba(0,0,0,.35);border-top:6px solid var(--kl-gold);
}
.kl-login-logo{
  width:64px;height:64px;border-radius:16px;background:var(--kl-red);color:var(--kl-gold-light);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.4rem;
  margin:0 auto 1rem;border:2px solid var(--kl-gold);
}

/* ---------- Responsive sidebar ---------- */
@media (max-width: 991.98px){
  .kl-sidebar{transform:translateX(-100%);}
  .kl-shell.sidebar-open .kl-sidebar{transform:translateX(0);}
  .kl-main{margin-left:0;}
}