:root{
  --bg: #f7f8fb;
  --card: #ffffff;
  --card-2: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #6b7280;
  --primary: #1d4ed8;
  --primary-600:#1e40af;
  --accent:#059669;
  --danger:#dc2626;
  --shadow: 0 8px 24px rgba(0,0,0,.08);
  --radius: 18px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial;
  background: var(--bg);
  color: var(--text);
}

/* Top bar */
.topbar{
  position: sticky; top:0; z-index:10;
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 16px; background: var(--card-2);
  box-shadow: var(--shadow); border-bottom: 1px solid var(--border);
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand .logo{ width:36px; height:36px; border-radius:10px; }
.brand h1{ font-size:20px; margin:0; color: var(--text); }

.actions{ display:flex; gap:8px; align-items:center; }
.split{ display:flex; gap:8px; flex-wrap:wrap; }

/* Layout */
.container{
  max-width: 1280px;
  margin: 16px auto;
  padding: 0 12px;
}

/* Card de búsqueda */
.search-card{
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}
.row{ display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.meta{ color: var(--muted); font-size: 14px; justify-content:space-between; }

/* Inputs */
.input,.select{
  flex:1; min-width: 220px; color: var(--text);
  padding: 12px 14px;
  background: #fff; border: 1px solid #d1d5db;
  border-radius: 12px; outline: none;
}
.input::placeholder{ color:#9aa4b2; }
.input:focus, .select:focus{
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29,78,216,.18);
}

/* Botones */
.btn, .btn-secondary{
  padding: 12px 16px; border-radius: 12px; cursor: pointer; border: 1px solid #d1d5db;
}
.btn{ background: var(--primary); color:#fff; border-color: transparent; }
.btn:hover{ background: var(--primary-600); }
.btn-secondary{ background: #fff; color: var(--text); }
.btn-secondary:hover{ background:#f3f4f6; }

/* Tabla dentro de un contenedor scrolleable */
.table-wrap{
  position: relative;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: auto;
  max-height: calc(100vh - 220px);
}

.table{
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.table thead th{
  position: sticky; top: 0; z-index: 2;
  background: #f8fafc;
  color: #0f172a;
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  white-space: nowrap;
}
.table tbody td{
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  background: #fff;
}
.table tbody tr:nth-child(even){ background: #f9fafb; }
.table tbody tr:hover{ background: #eef2f7; }

/* Indicadores de orden */
.table thead th .sort{ opacity:.35; margin-left:6px; font-size:11px; }
.table thead th.active .sort{ opacity:1; }
.table thead th.asc .sort::after{ content:"↑"; }
.table thead th.desc .sort::after{ content:"↓"; }

/* Spinner */
.spinner{
  position: absolute; inset: 0;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,255,255,.65);
  pointer-events: none; opacity: 0; transition: opacity .15s ease;
}
.spinner.show{ opacity: 1; }
.spinner::after{
  content:"";
  width: 36px; height:36px;
  border: 4px solid #cbd5e1; border-top-color: var(--primary);
  border-radius: 50%; animation: spin 1s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg);} }

.empty{ padding: 24px; text-align:center; color: var(--muted); }

.status{ margin-left:auto; color: var(--accent); }

.footer{
  text-align:center; color: var(--muted);
  padding: 16px 0 28px;
}

/* Resaltado de coincidencias */
.hl{
  background: #fff59d;
  color: #111827;
  padding: 0 2px;
  border-radius: 3px;
}

/* Tablet 1340x800: oculto columnas menos críticas si falta ancho */
@media (max-width: 1360px){
  .table thead th:nth-last-child(-n+2),
  .table tbody td:nth-last-child(-n+2){
    display:none; /* Vendedor y Código barras */
  }
}

/* ---------- Estilos para impresión/Export ---------- */
@media print {
  body { background:#fff; }
  .topbar, .search-card, .footer { display:none !important; }
  .table-wrap { max-height: none; overflow: visible; box-shadow:none; border:none; }
  .table thead th { position: static; }
}