:root{
  --ns-primary:#0b3d63;      /* azul corporativo NS */
  --ns-primary-dark:#082c47;
  --ns-accent:#f6c100;       /* amarelo Shell */
  --ns-accent-dark:#e0af00;
  --ns-bg:#f4f6f9;
  --ns-card:#ffffff;
  --ns-border:#e3e8ef;
  --ns-text:#1f2a37;
  --ns-muted:#6b7785;
}

*{box-sizing:border-box}
body{
  background:var(--ns-bg);
  color:var(--ns-text);
  font-family:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:15px;
}

/* ---------- LOGIN ---------- */
.login-wrap{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--ns-primary) 0%,var(--ns-primary-dark) 100%);
  padding:20px;
}
.login-card{
  background:#fff;border-radius:16px;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
  width:100%;max-width:410px;padding:38px 34px;
}
.login-logo{
  text-align:center;margin-bottom:6px;
  font-weight:800;font-size:1.45rem;color:var(--ns-primary);letter-spacing:-.5px;
}
.login-sub{text-align:center;color:var(--ns-muted);font-size:.9rem;margin-bottom:26px}

/* ---------- LAYOUT ADMIN ---------- */
.app{display:flex;min-height:100vh}
.sidebar{
  width:248px;background:var(--ns-primary);color:#cfe0ee;
  display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:1030;
  transition:transform .25s ease;
}
.sidebar-brand{
  padding:20px 22px;font-weight:800;color:#fff;font-size:1.05rem;
  border-bottom:1px solid rgba(255,255,255,.1);line-height:1.25;
}
.sidebar-brand small{display:block;font-weight:500;color:var(--ns-accent);font-size:.72rem;margin-top:3px}
.sidebar-nav{padding:14px 12px;flex:1;overflow-y:auto}
.sidebar-nav a{
  display:flex;align-items:center;gap:11px;
  color:#cfe0ee;text-decoration:none;padding:10px 14px;border-radius:9px;
  font-size:.92rem;margin-bottom:3px;transition:.15s;
}
.sidebar-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.sidebar-nav a.active{background:var(--ns-accent);color:#1c1c1c;font-weight:600}
.sidebar-nav a svg{width:18px;height:18px;flex-shrink:0}
.sidebar-foot{padding:14px;border-top:1px solid rgba(255,255,255,.1);font-size:.8rem}

.main{margin-left:248px;flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  background:#fff;border-bottom:1px solid var(--ns-border);
  padding:14px 26px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:1020;
}
.topbar h1{font-size:1.18rem;font-weight:700;margin:0}
.content{padding:26px;flex:1}

.btn-toggle{display:none}

/* ---------- CARDS / STATS ---------- */
.stat-card{
  background:var(--ns-card);border:1px solid var(--ns-border);border-radius:13px;
  padding:18px 20px;height:100%;
}
.stat-card .stat-label{color:var(--ns-muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.4px}
.stat-card .stat-value{font-size:1.85rem;font-weight:800;margin-top:4px;color:var(--ns-primary)}
.stat-card .stat-icon{
  width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:#eef3f8;color:var(--ns-primary);
}
.stat-icon svg{width:22px;height:22px}

.card{border:1px solid var(--ns-border);border-radius:13px}
.card-header{background:#fff;border-bottom:1px solid var(--ns-border);font-weight:600}

.btn-primary{background:var(--ns-primary);border-color:var(--ns-primary)}
.btn-primary:hover{background:var(--ns-primary-dark);border-color:var(--ns-primary-dark)}
.btn-accent{background:var(--ns-accent);border-color:var(--ns-accent);color:#1c1c1c;font-weight:600}
.btn-accent:hover{background:var(--ns-accent-dark);border-color:var(--ns-accent-dark);color:#1c1c1c}

.table thead th{background:#f7f9fc;color:var(--ns-muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.4px;border-bottom:2px solid var(--ns-border)}
.table td{vertical-align:middle}

/* ---------- CATÁLOGO SHELL ---------- */
.shell-header{
  background:linear-gradient(135deg,var(--ns-primary) 0%,var(--ns-primary-dark) 100%);
  color:#fff;padding:0;position:sticky;top:0;z-index:1030;
}
.shell-header .inner{
  max-width:1320px;margin:0 auto;padding:14px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.shell-brand{font-weight:800;font-size:1.05rem;line-height:1.2}
.shell-brand small{display:block;color:var(--ns-accent);font-weight:500;font-size:.72rem}
.shell-nav a{color:#cfe0ee;text-decoration:none;margin-left:18px;font-size:.92rem;font-weight:500}
.shell-nav a:hover,.shell-nav a.active{color:#fff}

.catalogo-wrap{max-width:1320px;margin:0 auto;padding:22px}
.filtros{
  background:#fff;border:1px solid var(--ns-border);border-radius:13px;
  padding:16px 18px;margin-bottom:20px;
}

.produto-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px;
}
.produto-card{
  background:#fff;border:1px solid var(--ns-border);border-radius:13px;overflow:hidden;
  display:flex;flex-direction:column;transition:.18s;position:relative;
}
.produto-card:hover{box-shadow:0 8px 26px rgba(11,61,99,.12);transform:translateY(-2px)}
.produto-img{
  height:165px;background:#f0f3f7;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.produto-img img{width:100%;height:100%;object-fit:contain;padding:10px}
.produto-img .placeholder{color:#c2ccd6}
.produto-img .placeholder svg{width:46px;height:46px}
.produto-body{padding:13px 14px;flex:1;display:flex;flex-direction:column}
.produto-marca{font-size:.72rem;color:var(--ns-accent-dark);font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.produto-nome{font-weight:600;font-size:.92rem;margin:3px 0 6px;line-height:1.3;color:var(--ns-text)}
.produto-meta{font-size:.78rem;color:var(--ns-muted);margin-bottom:8px}
.produto-preco{font-weight:700;color:var(--ns-primary);font-size:1rem;margin-top:auto}
.produto-status-tag{position:absolute;top:10px;right:10px}
.produto-actions{display:flex;border-top:1px solid var(--ns-border)}
.produto-actions button{
  flex:1;border:0;background:#fff;padding:9px 4px;font-size:.78rem;font-weight:600;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--ns-muted);transition:.15s;
}
.produto-actions button svg{width:17px;height:17px}
.produto-actions button:hover{background:#f7f9fc}
.produto-actions button.on-aprovar{color:#198754}
.produto-actions button.on-rejeitar{color:#dc3545}
.produto-actions button.on-analise{color:#b58900}
.produto-actions button + button{border-left:1px solid var(--ns-border)}

.empty-state{text-align:center;padding:60px 20px;color:var(--ns-muted)}
.empty-state svg{width:54px;height:54px;opacity:.4;margin-bottom:12px}

/* ---------- RESPONSIVO ---------- */
@media (max-width:992px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .btn-toggle{display:inline-flex}
}
.backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:1025}
.backdrop.show{display:block}