:root {
  --negro: #0b0b0b;
  --rojo: #E0050C;
  --rojo-oscuro: #a30409;
  --gris-fondo: #f4f4f5;
  --gris-borde: #ddd;
  --texto: #1c1c1e;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--gris-fondo); color: var(--texto);
}
header.top {
  background: var(--negro); color: #fff; padding: 14px 20px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  border-bottom: 4px solid var(--rojo);
}
.marca .logo { font-weight: 900; font-size: 22px; letter-spacing: .5px; }
.marca .logo span { color: var(--rojo); }
.marca .sub { font-size: 13px; color: #bbb; }
.sesion { display: flex; align-items: center; gap: 10px; }
.sesion .quien { font-size: 14px; color: #eee; }
nav.nav {
  background: #171717; padding: 0 12px; display: flex; flex-wrap: wrap;
}
nav.nav a {
  color: #ddd; text-decoration: none; padding: 12px 14px; font-size: 15px;
  border-bottom: 3px solid transparent;
}
nav.nav a:hover { color: #fff; }
nav.nav a.activo { color: #fff; border-bottom-color: var(--rojo); font-weight: 700; }
main.contenedor { max-width: 1150px; margin: 0 auto; padding: 20px 16px 40px; }
h1 { font-size: 24px; margin: 8px 0 16px; }
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 14px 0 8px; }
.btn {
  display: inline-block; background: #fff; color: var(--texto); border: 1px solid #bbb;
  border-radius: 8px; padding: 9px 16px; font-size: 15px; cursor: pointer; text-decoration: none;
}
.btn:hover { border-color: #888; }
.btn-rojo { background: var(--rojo); border-color: var(--rojo-oscuro); color: #fff; font-weight: 700; }
.btn-rojo:hover { background: var(--rojo-oscuro); }
.btn-chico { padding: 4px 10px; font-size: 13px; }
form.inline { display: inline; }
form.inline-flex { display: inline-flex; gap: 6px; margin-right: 8px; }
.aviso { border-radius: 8px; padding: 10px 14px; margin: 0 0 14px; font-size: 15px; }
.aviso-ok { background: #e5f6e8; border: 1px solid #8fd19a; }
.aviso-error { background: #fdeaea; border: 1px solid #f0a3a3; }
.rejilla { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-bottom: 18px; }
.tarjeta { background: #fff; border: 1px solid var(--gris-borde); border-left: 5px solid var(--rojo); border-radius: 10px; padding: 14px; }
.t-titulo { font-size: 13px; color: #666; text-transform: uppercase; letter-spacing: .4px; }
.t-valor { font-size: 26px; font-weight: 800; margin: 4px 0; }
.t-nota { font-size: 13px; color: #777; }
.dos-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 800px) { .dos-col { grid-template-columns: 1fr; } }
.caja { background: #fff; border: 1px solid var(--gris-borde); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
table.tabla { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
table.tabla th, table.tabla td { border-bottom: 1px solid #e6e6e6; padding: 7px 8px; text-align: left; vertical-align: top; }
table.tabla th { background: #fafafa; font-size: 13px; text-transform: uppercase; letter-spacing: .3px; color: #555; }
table.tabla td.num, table.tabla th.num { text-align: right; }
table.tabla input { padding: 5px 6px; }
a { color: var(--rojo-oscuro); }
.nota { color: #666; font-size: 13px; }
.vacio { color: #777; }
form.form label { display: block; margin-bottom: 12px; font-size: 14px; font-weight: 600; }
form.form input, form.form select, form.form textarea {
  display: block; width: 100%; margin-top: 4px; padding: 9px 10px; font-size: 15px;
  border: 1px solid #bbb; border-radius: 8px; font-weight: 400; background: #fff;
}
form.form label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
form.form label.check input { width: auto; margin: 0; }
.form-ancho { background: #fff; border: 1px solid var(--gris-borde); border-radius: 10px; padding: 18px; }
.form-fila { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.form-fila label { flex: 1 1 180px; margin-bottom: 0; }
.form-fila input, .form-fila select { display: block; width: 100%; margin-top: 4px; padding: 9px 10px; font-size: 15px; border: 1px solid #bbb; border-radius: 8px; }
fieldset { border: 1px solid var(--gris-borde); border-radius: 10px; margin: 0 0 14px; padding: 14px; }
legend { font-weight: 700; padding: 0 6px; }
.filtros { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.filtros input, .filtros select { padding: 9px 10px; font-size: 15px; border: 1px solid #bbb; border-radius: 8px; }
.filtros input[name="q"] { flex: 1 1 260px; }
.acceso { max-width: 460px; margin: 30px auto; background: #fff; border: 1px solid var(--gris-borde); border-radius: 12px; padding: 24px; }
.buscador-linea { position: relative; margin-bottom: 10px; }
.buscador-linea input { width: 100%; padding: 10px; font-size: 15px; border: 1px solid #bbb; border-radius: 8px; }
.resultados { position: absolute; left: 0; right: 0; top: 100%; z-index: 20; background: #fff; border: 1px solid #ccc; border-radius: 8px; overflow: hidden; box-shadow: 0 8px 20px rgba(0,0,0,.15); }
.resultados:empty { display: none; }
.resultados .opcion { padding: 9px 12px; cursor: pointer; font-size: 14px; border-bottom: 1px solid #eee; }
.resultados .opcion:hover { background: #fdf0f0; }
footer.pie { text-align: center; color: #888; font-size: 13px; padding: 18px 10px 26px; }
/* ---- Documento imprimible ---- */
body.impresion { background: #fff; padding: 24px; max-width: 820px; margin: 0 auto; }
.doc-cab { display: flex; justify-content: space-between; align-items: start; border-bottom: 3px solid var(--rojo); padding-bottom: 10px; }
.doc-logo { font-weight: 900; font-size: 24px; }
.doc-logo span { color: var(--rojo); }
.doc-tipo { text-align: right; font-size: 15px; }
.doc-datos { font-size: 14px; color: #444; }
.doc-cliente { background: #fafafa; border: 1px solid #e2e2e2; border-radius: 8px; padding: 12px; margin: 14px 0; font-size: 15px; }
.doc-totales { text-align: right; margin-top: 14px; font-size: 15px; line-height: 1.7; }
.doc-total { font-size: 20px; }
.doc-pie { margin-top: 30px; font-size: 14px; color: #444; }
@media print { body.impresion { padding: 0; } }