.canales {
    width: min(1120px, 100%);
    min-height: calc(100vh - 178px);
    margin: 0 auto;
    padding: 42px 20px 70px;
    position: relative;
    z-index: 1;
}

.canales::before{

    content:"";

    position:fixed;

    inset:0;

    background:
        url("../img/fondos/mundo.webp")
        center center / cover
        no-repeat;

    

    pointer-events:none;

    z-index:-1;

}

.canales-cabecera {
    margin-bottom: 28px;
    text-align: center;
}

.canales-marca {
    width: min(380px, 78vw);
    margin: 0 auto 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.canales-marca img:first-child {
    display: block;
    width: 100%;
    height: auto;
}

.canales-marca img:last-child {
    display: block;
    width: 72%;
    height: auto;
    margin-top: 2px;
}

.canales-cabecera h1 {
    margin-bottom: 12px;
    color: #fff;
    font-family: 'Allura', cursive;
    font-size: 72px;
    font-weight: 400;
    text-shadow: 0 0 20px rgba(100, 180, 255, .55);
}

.canales-cabecera p {
    color: #d3d8ff;
    font-size: 19px;
    line-height: 1.55;
}

.canales-buscador {
    max-width: 660px;
    margin: 0 auto 34px;
}

.canales-buscador input {
    width: 100%;
    height: 52px;
    padding: 0 22px;
    border: 1px solid rgba(120, 180, 255, .35);
    border-radius: 14px;
    outline: none;
    background: rgba(20, 30, 68, .86);
    color: #fff;
    font: inherit;
}

.canales-buscador input:focus {
    border-color: #55b6ff;
    box-shadow: 0 0 18px rgba(60, 160, 255, .35);
}

.categorias-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
}

.categoria {
    overflow: hidden;
    min-height: 80px;
    border: 1px solid rgba(120, 180, 255, .25);
    border-radius: 18px;
    background: linear-gradient(145deg, rgba(33, 46, 99, .93), rgba(18, 25, 61, .92));
    box-shadow: 0 13px 28px rgba(0, 0, 0, .22);
    transition: all .25s ease;
}

.categoria:hover {
    transform: translateY(-4px);
    border-color: #6fa8ff;
    box-shadow: 0 14px 30px rgba(48, 139, 255, .22);
}

.categoria summary {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    padding: 16px;
    cursor: pointer;
    list-style: none;
    color: #fff;
    font-size: 21px;
    font-weight: 700;
    text-align: center;
}

.categoria summary::-webkit-details-marker {
    display: none;
}

.categoria-contenido {
    padding: 0 18px 18px;
    border-top: 1px solid rgba(255,255,255,.08);
}

.canal {
    display: block;
    width: 100%;
    padding: 13px 2px;
    border-bottom: 1px solid rgba(255,255,255,.09);
    color: #e8f2ff;
    font-size: 17px;
    font-family: inherit;
    font-weight: inherit;
    text-align: left;
    background: transparent;
    cursor: pointer;
}

.canal:hover,
.canal:focus-visible {
    color: #58caff;
    outline: none;
}

.canal:last-child {
    border-bottom: 0;
}

.canal[hidden] {
    display: none;
}

@media (min-width:761px) {
    /* En escritorio, el contenido real de cada details queda oculto y se
       replica en una bandeja común justo debajo de su fila. */
    .categoria .categoria-contenido {
        display: none !important;
    }

    .categoria[open] {
        border-color: #71c7ff;
        box-shadow: 0 14px 30px rgba(48, 139, 255, .25);
    }

    .categorias-bandeja {
        grid-column: 1 / -1;
        padding: 18px;
        border: 1px solid rgba(120, 180, 255, .30);
        border-radius: 18px;
        background: linear-gradient(145deg, rgba(33, 46, 99, .95), rgba(18, 25, 61, .94));
        box-shadow: 0 13px 28px rgba(0, 0, 0, .24);
    }

    .categorias-bandeja[hidden] {
        display: none;
    }

    .categorias-bandeja .categoria-contenido {
        display: grid;
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 10px;
        padding: 0;
        border: 0;
    }

    .categorias-bandeja .canal {
        min-width: 0;
        padding: 11px 13px;
        overflow: hidden;
        border: 1px solid rgba(151, 193, 244, .19);
        border-radius: 11px;
        background: rgba(255, 255, 255, .045);
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .categorias-bandeja .canal:hover,
    .categorias-bandeja .canal:focus-visible {
        border-color: rgba(88, 202, 255, .62);
        background: rgba(74, 147, 255, .13);
    }
}

@media (max-width:760px){

    .canales{
        padding:32px 14px 56px;
    }

    .canales-cabecera h1{
        font-size:58px;
    }

    .canales-cabecera p{
        font-size:16px;
    }

    .categorias-grid{
        grid-template-columns:1fr;
    }

    .categoria,
    .categoria summary{
        min-height:80px;
    }

    .categorias-bandeja { display:none !important; }

}