:root {
  --rojo: #8c1d1d;
  --rojo-claro: #b83232;
  --gris-borde: #d8d8d8;
  --gris-fondo: #f6f6f6;
  --texto: #222;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--gris-fondo);
  color: var(--texto);
  padding-bottom: 60px;
}

#app { max-width: 640px; margin: 0 auto; padding: 16px; }

h1 { font-size: 1.4rem; color: var(--rojo); }
h2 { font-size: 1.15rem; margin-bottom: 4px; }
h3 { font-size: 1rem; margin: 16px 0 8px; color: var(--rojo-claro); }

.subtitulo { color: #555; margin: 4px 0 12px; font-size: 0.92rem; }

.barra-superior {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.85rem; color: #666; margin-bottom: 8px;
}

.progreso {
  font-size: 0.8rem; color: #888; margin-bottom: 12px; text-transform: uppercase;
  letter-spacing: 0.03em;
}

.opciones { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.opciones-grid { display: grid; grid-template-columns: 1fr; gap: 6px; }

.opcion {
  display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--gris-borde); border-radius: 10px;
  padding: 10px 12px; font-size: 0.92rem;
}
.opcion input { width: 18px; height: 18px; flex-shrink: 0; }

.texto-libre, .cond-field, .cond-fields input, .campos input, .campo input,
.fila-presentacion-detalle input[type="number"] {
  width: 100%; padding: 10px; margin: 6px 0 12px; border: 1px solid var(--gris-borde);
  border-radius: 8px; font-size: 0.95rem;
}

.hidden { display: none !important; }

.campos { display: flex; flex-direction: column; }
.campo { display: flex; flex-direction: column; font-size: 0.85rem; color: #444; }
.campo.full { grid-column: 1 / -1; }

.grupo-mixto { margin-bottom: 20px; padding-bottom: 8px; border-bottom: 1px solid var(--gris-borde); }
.grupo-mixto:last-child { border-bottom: none; }

.bloque-categoria { margin: 12px 0; padding: 10px; background: #fff; border-radius: 10px; border: 1px solid var(--gris-borde); }
.tarjeta-proveedor { background: var(--gris-fondo); border-radius: 8px; padding: 10px; margin: 8px 0; }
.tarjeta-proveedor strong { display: block; margin-bottom: 6px; color: var(--rojo-claro); font-size: 0.85rem; }

.fila-presentacion { background: #fff; border: 1px solid var(--gris-borde); border-radius: 10px; padding: 10px 12px; margin-bottom: 10px; }
.fila-presentacion-detalle { margin-top: 6px; font-size: 0.85rem; }
.mini-grupo { display: block; margin: 4px 0; }
.mini-grupo label { margin-right: 12px; }

.botones-nav { display: flex; justify-content: space-between; margin-top: 20px; gap: 10px; }
button {
  padding: 12px 18px; border-radius: 10px; border: 1px solid var(--gris-borde);
  background: #fff; font-size: 0.95rem; cursor: pointer;
}
button.primario { background: var(--rojo); color: #fff; border: none; flex: 1; }
button.link { background: none; border: none; color: #888; text-decoration: underline; padding: 0; }

.error { color: #b00020; font-size: 0.85rem; min-height: 1.2em; margin-top: 8px; }

.pantalla-login, .pantalla-confirmacion {
  display: flex; flex-direction: column; gap: 10px; margin-top: 40px; text-align: center;
}
.pantalla-login input {
  padding: 12px; border-radius: 8px; border: 1px solid var(--gris-borde); font-size: 1rem;
}
.nota { font-size: 0.78rem; color: #888; }

#indicador-pendientes {
  position: fixed; bottom: 0; left: 0; right: 0; text-align: center;
  padding: 10px; font-size: 0.85rem; color: #fff; cursor: pointer;
}
.indicador.pendiente { background: #b8860b; }
.indicador.ok { background: #2e7d32; }