/* =====================================================================
   Billard Ramírez · Panel de cotizaciones
   Estética del sitio: blanco y negro, tipografía en mayúsculas espaciadas.
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --negro: #111;
  --gris-borde: #e5e7eb;
  --gris-texto: #6b7280;
  --gris-fondo: #f9fafb;
  --verde: #00963c;
  --rojo: #dc2626;
  --amarillo: #ca8a04;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 16px;
  color: var(--negro);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* --- Barra superior --- */
.barra {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 24px;
  height: 60px;
  background: var(--negro);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
}
.marca {
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}
.marca span {
  display: block;
  font-size: 11px;
  letter-spacing: .3em;
  color: #9ca3af;
  font-weight: 400;
}
.nav { display: flex; gap: 4px; flex: 1; }
.nav a {
  padding: 8px 14px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .1em;
  text-decoration: none;
  color: #d1d5db;
}
.nav a:hover { color: #fff; }
.nav a.activo { color: #fff; border-bottom: 2px solid #fff; }
.usuario { display: flex; align-items: center; gap: 16px; font-size: 14px; color: #9ca3af; }
.usuario a { color: #fff; text-decoration: none; border-bottom: 1px solid #4b5563; }

/* --- Contenido --- */
.contenido { max-width: 1280px; margin: 0 auto; padding: 32px 24px 80px; }

.encabezado {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.encabezado h1 {
  margin: 0;
  font-size: 28px;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 600;
}
.encabezado .sobre-titulo {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: #9ca3af;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--negro);
  background: var(--negro);
  color: #fff;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .1em;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s, color .15s;
  font-family: inherit;
}
.btn:hover { background: #333; }
.btn-secundario { background: #fff; color: var(--negro); }
.btn-secundario:hover { background: var(--gris-fondo); }
.btn-peligro { border-color: var(--rojo); background: #fff; color: var(--rojo); }
.btn-peligro:hover { background: #fef2f2; }
.btn-chico { padding: 7px 12px; font-size: 13px; }

/* --- Formularios --- */
.campo { margin-bottom: 16px; }
.campo label,
.etiqueta {
  display: block;
  font-size: 13px;
  color: var(--gris-texto);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
input[type=text], input[type=email], input[type=password],
input[type=number], input[type=date], select, textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--gris-borde);
  font-size: 16px;
  font-family: inherit;
  background: #fff;
  color: var(--negro);
  border-radius: 0;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--negro); }
textarea { resize: vertical; min-height: 80px; line-height: 1.55; }
.grilla { display: grid; gap: 16px; }
.grilla-2 { grid-template-columns: repeat(2, 1fr); }
.grilla-3 { grid-template-columns: repeat(3, 1fr); }
.grilla-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
  .grilla-2, .grilla-3, .grilla-4 { grid-template-columns: 1fr; }
}

.panel {
  border: 1px solid var(--gris-borde);
  padding: 24px;
  margin-bottom: 24px;
  background: #fff;
}
.panel h2 {
  margin: 0 0 20px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .22em;
  color: #9ca3af;
  font-weight: 500;
}

/* --- Tablas --- */
.tabla { width: 100%; border-collapse: collapse; }
.tabla th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: #9ca3af;
  font-weight: 500;
  padding: 10px 12px;
  border-bottom: 1px solid var(--gris-borde);
  white-space: nowrap;
}
.tabla td { padding: 14px 12px; border-bottom: 1px solid #f3f4f6; vertical-align: middle; }
.tabla tbody tr:hover { background: var(--gris-fondo); }
.tabla .num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.tabla a.folio { font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--negro); }

/* --- Estados --- */
.estado {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .1em;
  border: 1px solid;
  white-space: nowrap;
}
.estado-borrador  { color: var(--gris-texto); border-color: var(--gris-borde); background: var(--gris-fondo); }
.estado-enviada   { color: #1d4ed8; border-color: #bfdbfe; background: #eff6ff; }
.estado-aceptada  { color: var(--verde); border-color: #bbf7d0; background: #f0fdf4; }
.estado-rechazada { color: var(--rojo); border-color: #fecaca; background: #fef2f2; }
.estado-vencida   { color: var(--amarillo); border-color: #fde68a; background: #fefce8; }

/* --- Avisos --- */
.aviso {
  padding: 14px 18px;
  margin-bottom: 24px;
  border: 1px solid;
  font-size: 15px;
}
.aviso-ok    { border-color: #bbf7d0; background: #f0fdf4; color: #166534; }
.aviso-error { border-color: #fecaca; background: #fef2f2; color: #991b1b; }
.aviso-info  { border-color: #bfdbfe; background: #eff6ff; color: #1e40af; }

/* --- Filtros --- */
.filtros {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 20px;
  padding: 18px;
  background: var(--gris-fondo);
  border: 1px solid var(--gris-borde);
}
.filtros .campo { margin: 0; min-width: 160px; flex: 1; }
.filtros .campo-ancho { flex: 2; }

/* --- Login --- */
.login-caja {
  max-width: 400px;
  margin: 90px auto;
  border: 1px solid var(--gris-borde);
  padding: 40px;
}
.login-caja h1 {
  font-size: 21px;
  text-transform: uppercase;
  letter-spacing: .18em;
  margin: 0 0 6px;
  text-align: center;
}
.login-caja .sub {
  text-align: center;
  font-size: 12px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: #9ca3af;
  margin: 0 0 32px;
}
.login-caja .btn { width: 100%; justify-content: center; }

/* --- Constructor de cotización --- */
.item-fila {
  display: grid;
  grid-template-columns: 1fr 100px 165px 165px 44px;
  gap: 12px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid #f3f4f6;
}
.item-fila .item-nombre { font-weight: 500; }
.item-fila .item-detalle {
  font-size: 14px;
  color: var(--gris-texto);
  white-space: pre-line;
  margin-top: 4px;
  line-height: 1.5;
}
.item-fila .num { text-align: right; font-variant-numeric: tabular-nums; }
.item-quitar {
  border: none;
  background: none;
  color: #9ca3af;
  cursor: pointer;
  font-size: 21px;
  line-height: 1;
  padding: 4px;
}
.item-quitar:hover { color: var(--rojo); }
@media (max-width: 860px) {
  .item-fila { grid-template-columns: 1fr 1fr; }
}

.totales { margin-left: auto; max-width: 380px; margin-top: 20px; }
.totales .linea {
  display: flex;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid #f3f4f6;
  font-variant-numeric: tabular-nums;
}
.totales .linea.total {
  border-bottom: none;
  border-top: 2px solid var(--negro);
  margin-top: 8px;
  padding-top: 14px;
  font-size: 22px;
  font-weight: 600;
}

/* --- Buscador de productos --- */
.buscador { position: relative; }
.resultados {
  position: absolute;
  z-index: 30;
  left: 0; right: 0;
  background: #fff;
  border: 1px solid var(--negro);
  max-height: 340px;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0,0,0,.12);
}
.resultados button {
  display: flex;
  gap: 12px;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 10px 14px;
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  border-bottom: 1px solid #f3f4f6;
}
.resultados button:hover { background: var(--gris-fondo); }
.resultados img { width: 38px; height: 38px; object-fit: cover; background: var(--gris-fondo); }
.resultados .r-precio { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--gris-texto); }

/* --- Utilidades --- */
.vacio { text-align: center; padding: 60px 20px; color: var(--gris-texto); }
.acciones { display: flex; gap: 10px; flex-wrap: wrap; }
.tenue { color: var(--gris-texto); font-size: 14px; }
.oculto { display: none !important; }
.sep { height: 1px; background: var(--gris-borde); margin: 24px 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 12px;
  border: 1px solid var(--gris-borde);
  cursor: pointer;
  font-size: 14px;
  background: #fff;
  font-family: inherit;
}
.chip:hover { border-color: #9ca3af; }
.chip.activo { border-color: var(--negro); background: var(--negro); color: #fff; }