:root {
    --marca: #1b5eaa;
    --tinta: #1c2430;
    --suave: #5c6778;
    --fondo: #eef1f4;
    --tarjeta: #ffffff;
    --linea: #d7dee6;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    color: var(--tinta);
    background: var(--fondo);
}

.encabezado {
    background: #fff;
    border-bottom: 3px solid var(--marca);
    padding: 10px 16px;
}

.marca {
    max-width: 1100px;
    margin: 0 auto;
}

.marca img {
    display: block;
    height: 46px;
    width: auto;
}

.pagina {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 12px 32px;
}

h1 {
    margin: 0 0 8px;
    font-size: 1.45rem;
    line-height: 1.2;
}

.ruta,
.cuenta {
    margin: 0 0 8px;
    color: var(--suave);
    font-size: 0.92rem;
}

.aviso {
    margin: 12px 0 0;
    padding: 14px 16px;
    background: var(--tarjeta);
    border: 1px solid var(--linea);
    border-radius: 12px;
}

.grilla {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 14px;
}

.tarjeta {
    display: block;
    background: var(--tarjeta);
    border: 1px solid var(--linea);
    border-radius: 12px;
    overflow: hidden;
    color: inherit;
    text-decoration: none;
}

.volver {
    display: inline-block;
    margin: 0 0 12px;
    color: var(--marca);
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
}

.visor {
    position: relative;
    height: min(68vh, 520px);
    margin: 12px 0 8px;
    background: #fff;
    border: 1px solid var(--linea);
    border-radius: 12px;
    overflow: hidden;
    touch-action: none;
}

.visor img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    cursor: grab;
}

.visor.vacio {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--suave);
    font-size: 1.4rem;
    font-weight: 700;
}

.zoom-botones {
    position: absolute;
    right: 10px;
    bottom: 10px;
    display: flex;
    gap: 8px;
    z-index: 2;
}

.zoom-botones button {
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 10px;
    background: var(--marca);
    color: #fff;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
}

.ayuda {
    margin: 0 0 14px;
    color: var(--suave);
    font-size: 0.85rem;
}

.ficha {
    margin: 0;
    background: var(--tarjeta);
    border: 1px solid var(--linea);
    border-radius: 12px;
    overflow: hidden;
}

.ficha div {
    display: grid;
    gap: 2px;
    padding: 12px 14px;
    border-top: 1px solid var(--linea);
}

.ficha div:first-child {
    border-top: 0;
}

.ficha dt {
    color: var(--suave);
    font-size: 0.78rem;
    font-weight: 700;
}

.ficha dd {
    margin: 0;
    font-size: 1rem;
}

.foto {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f4f6f8;
}

.foto img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.foto span {
    display: none;
    color: var(--suave);
    font-weight: 700;
    font-size: 0.95rem;
}

.foto.vacia span {
    display: block;
}

.datos {
    padding: 10px 10px 12px;
}

.codigo {
    margin: 0 0 4px;
    color: var(--suave);
    font-size: 0.78rem;
    font-weight: 700;
}

.descripcion {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 3.6em;
}

@media (min-width: 700px) {
    .pagina {
        padding: 22px 20px 40px;
    }

    .grilla {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 14px;
    }
}

@media (min-width: 1020px) {
    .grilla {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}