:root {
  --fondo: #fafafa; --panel: #ffffff; --texto: #18181b; --suave: #71717a; --linea: #e4e4e7; --linea-2: #f4f4f5;
  --acento: #18181b; --acento-txt: #fafafa; --ok: #15803d; --ok-fondo: #f0fdf4; --mal: #b91c1c; --mal-fondo: #fef2f2;
  --aviso: #a16207; --aviso-fondo: #fefce8; --radio: 8px; --sombra: 0 1px 2px rgba(0,0,0,.04);
  --fuente: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
[data-tema="oscuro"] {
  --fondo: #09090b; --panel: #111113; --texto: #f4f4f5; --suave: #a1a1aa; --linea: #27272a; --linea-2: #18181b;
  --acento: #fafafa; --acento-txt: #09090b; --ok: #4ade80; --ok-fondo: #052e16; --mal: #f87171; --mal-fondo: #2a0a0a;
  --aviso: #facc15; --aviso-fondo: #2a2305;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--fondo); color: var(--texto); font: 14px/1.5 var(--fuente); -webkit-font-smoothing: antialiased; }
h1 { font-size: 22px; font-weight: 600; letter-spacing: -.02em; margin: 0; }
h2 { font-size: 14px; font-weight: 600; margin: 0; }
h2.sep { margin: 24px 0 6px; padding-top: 20px; border-top: 1px solid var(--linea); }
p { margin: 0; }
a { color: inherit; }
.suave { color: var(--suave); }
.peq { font-size: 12px; }
[hidden] { display: none !important; }

.ico { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ico.grande { width: 28px; height: 28px; color: var(--suave); stroke-width: 1.5; }

/* Barra lateral fija */
.lateral { position: fixed; inset: 0 auto 0 0; width: 240px; border-right: 1px solid var(--linea); background: var(--panel); display: flex; flex-direction: column; padding: 16px 12px; z-index: 10; }
.marca { display: flex; align-items: center; gap: 8px; font-weight: 600; padding: 4px 8px 16px; }
.version { margin-left: auto; font: 11px var(--mono); color: var(--suave); border: 1px solid var(--linea); border-radius: 4px; padding: 0 5px; }
nav { display: flex; flex-direction: column; gap: 2px; }
.nav-item { display: flex; align-items: center; gap: 10px; white-space: nowrap; padding: 7px 8px; border-radius: 6px; text-decoration: none; color: var(--suave); }
.nav-item:hover { background: var(--linea-2); color: var(--texto); }
.nav-item.activo { background: var(--linea-2); color: var(--texto); font-weight: 500; }
.contador { margin-left: auto; font: 11px var(--mono); background: var(--fondo); border: 1px solid var(--linea); border-radius: 10px; padding: 0 6px; }
.lateral-pie { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.nota { font-size: 12px; color: var(--suave); padding: 0 8px; }

main { margin-left: 240px; padding: 28px 32px 60px; max-width: 1400px; }
.cab { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 20px; }
.sub { color: var(--suave); margin-top: 2px; }

.panel { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 16px; box-shadow: var(--sombra); min-width: 0; }
.panel.estrecho { max-width: 640px; }
.panel-cab { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.rejilla-escaner { display: grid; grid-template-columns: minmax(300px, 5fr) 7fr; gap: 16px; align-items: start; }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 32px; padding: 0 12px; border: 1px solid var(--linea); background: var(--panel); color: var(--texto); border-radius: 6px; font: 500 13px var(--fuente); cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: var(--linea-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primario { background: var(--acento); color: var(--acento-txt); border-color: var(--acento); }
.btn.primario:hover { opacity: .9; }
.btn.fantasma { border-color: transparent; background: transparent; }
.btn.fantasma:hover { background: var(--linea-2); }
.btn.peligro { color: var(--mal); }
.btn.icono { width: 32px; padding: 0; }
.btn.peq { height: 28px; font-size: 12px; }
.lateral-pie .btn { justify-content: flex-start; }
.fila-btn { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.fila-btn.entre { justify-content: space-between; margin-top: 12px; }
.fila-btn.fin { justify-content: flex-end; margin-top: 16px; }

.segmentado { display: inline-flex; border: 1px solid var(--linea); border-radius: 6px; padding: 2px; gap: 2px; }
.seg { display: inline-flex; align-items: center; gap: 6px; border: 0; background: transparent; color: var(--suave); height: 26px; padding: 0 10px; border-radius: 4px; font: 500 12px var(--fuente); cursor: pointer; }
.seg.activo { background: var(--linea-2); color: var(--texto); }
.motor-info { font-size: 12px; color: var(--suave); margin: -4px 0 12px; }
.motor-info a { cursor: pointer; }

/* Zona de captura */
.zona { border: 1px dashed var(--linea); border-radius: var(--radio); min-height: 320px; display: flex; align-items: center; justify-content: center; background: var(--fondo); overflow: hidden; }
.zona.arrastrando { border-color: var(--texto); background: var(--linea-2); }
.zona-vacia { text-align: center; padding: 32px 16px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.zona-imagen { width: 100%; display: flex; justify-content: center; padding: 12px; }
#lienzo { max-width: 100%; max-height: 62vh; border-radius: 4px; border: 1px solid var(--linea); }

.progreso { margin-top: 14px; }
.progreso-txt { display: flex; justify-content: space-between; font-size: 12px; color: var(--suave); margin-bottom: 6px; }
.barra { height: 4px; background: var(--linea-2); border-radius: 2px; overflow: hidden; }
.barra-relleno { height: 100%; width: 0; background: var(--texto); transition: width .2s; }
.barra-relleno.indeterminada { width: 30% !important; animation: indet 1.2s infinite ease-in-out; }
@keyframes indet { 0% { transform: translateX(-100%); } 100% { transform: translateX(340%); } }

.alerta { margin-top: 12px; padding: 10px 12px; border-radius: 6px; font-size: 13px; border: 1px solid; display: flex; gap: 8px; align-items: flex-start; }
.alerta.error { color: var(--mal); background: var(--mal-fondo); border-color: color-mix(in srgb, var(--mal) 25%, transparent); }
.alerta.aviso { color: var(--aviso); background: var(--aviso-fondo); border-color: color-mix(in srgb, var(--aviso) 25%, transparent); }

.vacio { text-align: center; padding: 48px 16px; color: var(--suave); display: flex; flex-direction: column; align-items: center; gap: 10px; }
.etiqueta { font: 11px var(--mono); border: 1px solid var(--linea); border-radius: 4px; padding: 1px 6px; color: var(--suave); }

/* Formularios */
label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--suave); font-weight: 500; }
input, select { height: 32px; border: 1px solid var(--linea); border-radius: 6px; background: var(--panel); color: var(--texto); padding: 0 10px; font: 13px var(--fuente); width: 100%; min-width: 0; }
input:focus, select:focus { outline: 2px solid color-mix(in srgb, var(--texto) 20%, transparent); outline-offset: 0; border-color: var(--suave); }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--texto); font-weight: 400; margin: 10px 0; }
label.check input { width: auto; height: auto; }
.campos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.campos .ancho { grid-column: 1 / -1; }
.con-boton { display: flex; gap: 6px; }
#form-ajustes label { margin-top: 12px; }
.pasos { color: var(--suave); padding-left: 18px; margin: 10px 0; }
.avanzado summary, .bruto summary { cursor: pointer; font-size: 12px; color: var(--suave); margin-top: 12px; }

/* Tablas */
.tabla-envoltura { overflow-x: auto; border: 1px solid var(--linea); border-radius: 6px; }
.tabla { width: 100%; border-collapse: collapse; font-size: 13px; }
.tabla th { text-align: left; font-weight: 500; color: var(--suave); font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--linea); background: var(--fondo); white-space: nowrap; }
.tabla td { padding: 6px 10px; border-bottom: 1px solid var(--linea-2); vertical-align: middle; }
.tabla tr:last-child td { border-bottom: 0; }
.tabla .num { text-align: right; font-variant-numeric: tabular-nums; }
.tabla.editable td { padding: 3px 4px; }
.tabla.editable input { height: 28px; border-color: transparent; background: transparent; padding: 0 6px; }
.tabla.editable input:hover { border-color: var(--linea); }
.tabla.editable input:focus { border-color: var(--suave); background: var(--panel); }
.tabla.editable .num input { text-align: right; font-variant-numeric: tabular-nums; }
.tabla.editable td.c-cant { width: 64px; } .tabla.editable td.c-pre, .tabla.editable td.c-imp { width: 92px; } .tabla.editable td.c-acc { width: 36px; }
.tabla tr.dudosa td { background: var(--aviso-fondo); }
#tabla-lineas + .btn, #btn-add-linea { margin-top: 8px; }
.tabla-listado-fila { cursor: pointer; }
#tabla-listado tbody tr:hover td { background: var(--linea-2); }

.totales { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--linea); }
.total-campo { width: 140px; }
.total-campo input { font-weight: 600; font-size: 15px; text-align: right; }
.validacion { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.insignia { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 500; padding: 2px 8px; border-radius: 10px; border: 1px solid; white-space: nowrap; }
.insignia.ok { color: var(--ok); background: var(--ok-fondo); border-color: color-mix(in srgb, var(--ok) 25%, transparent); }
.insignia.mal { color: var(--mal); background: var(--mal-fondo); border-color: color-mix(in srgb, var(--mal) 25%, transparent); }
.insignia .ico { width: 12px; height: 12px; }
.iva { margin-top: 12px; }
.iva .tabla { font-size: 12px; }
.bruto pre { font: 11px/1.45 var(--mono); background: var(--fondo); border: 1px solid var(--linea); border-radius: 6px; padding: 10px; max-height: 240px; overflow: auto; white-space: pre-wrap; margin: 8px 0 0; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--linea); border-radius: var(--radio); padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.kpi span { font-size: 12px; color: var(--suave); }
.kpi strong { font-size: 20px; font-weight: 600; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.buscador { display: flex; align-items: center; gap: 8px; border: 1px solid var(--linea); border-radius: 6px; padding: 0 10px; margin-bottom: 12px; color: var(--suave); }
.buscador input { border: 0; padding: 0; outline: none !important; }

/* Modales */
.modal { position: fixed; inset: 0; background: rgba(9,9,11,.5); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal-caja { background: var(--panel); border: 1px solid var(--linea); border-radius: 10px; padding: 16px; width: 100%; max-width: 560px; max-height: 92vh; overflow: auto; }
.modal-caja.ancha { max-width: 980px; }
#video { width: 100%; border-radius: 6px; background: #000; margin-bottom: 8px; }
.detalle { display: grid; grid-template-columns: 280px 1fr; gap: 16px; }
.detalle img { width: 100%; border-radius: 6px; border: 1px solid var(--linea); }
.meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 16px; margin-bottom: 14px; }
.meta div span { display: block; font-size: 11px; color: var(--suave); }
.meta div strong { font-weight: 500; }

.aviso-flotante { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--acento); color: var(--acento-txt); padding: 8px 14px; border-radius: 6px; font-size: 13px; z-index: 60; }

@media (max-width: 1080px) { .rejilla-escaner { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .lateral { position: static; width: auto; border-right: 0; border-bottom: 1px solid var(--linea); padding: 10px; }
  .lateral nav { flex-direction: row; overflow-x: auto; }
  .marca { padding-bottom: 8px; }
  .lateral-pie { display: none; }
  main { margin-left: 0; padding: 16px; }
  .campos, .meta { grid-template-columns: 1fr 1fr; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .detalle { grid-template-columns: 1fr; }
  .cab { flex-direction: column; align-items: flex-start; }
}

/* v1.1 — acceso, sesión y catálogo */
body.sin-sesion main { margin-left: 0; }
.acceso { min-height: 80vh; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; }
.acceso .panel { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; }
.acceso .marca { padding: 0; font-size: 16px; }
.ancho-completo { width: 100%; }
.usuario-lateral { font-size: 12px; color: var(--suave); padding: 0 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.usuario-lateral strong { display: block; color: var(--texto); font-weight: 500; }
.opciones { display: flex; flex-direction: column; margin-top: 6px; }
.opciones label.check { margin: 6px 0; }
.tabla tr.corregida td:first-child { box-shadow: inset 2px 0 0 var(--ok); }
.tabla tr.corregida input[data-c="descripcion"] { color: var(--ok); }
.alerta.info { color: var(--texto); background: var(--linea-2); border-color: var(--linea); }