header {
    max-width: 100vw;
    /*overflow: hidden;*/
}

header.logo-nav {
    z-index: 20;

    padding: 1.5rem 1.1rem;

    display: flex;
    flex-direction: row;
    align-items: center;
}

header.logo-nav .logo {
    display: flex;
    margin-right: 10rem;
}

header.logo-nav .logo img {
    height: 5.25rem;
    width: 18rem;

    object-fit: contain;
}

header.logo-nav .sandwich {
    display: none;
}

header.logo-nav nav {
    max-width: 55vw;
    flex-grow: 2;
}

header.logo-nav nav ul {
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
    flex-wrap: wrap;
}

header.logo-nav nav ul li {
    list-style: none;

    text-align: center;
}

header.logo-nav nav a.actif {
    font-weight: bold;
    color: black;
}

header.logo-nav nav ul li:nth-child(n + 2) {
    margin-left: 1rem;
}

/* tête-titre */

header.titre {
    margin-bottom: 1.5rem;

    padding-top: 3rem;
    padding-left: 6.6rem;
    padding-bottom: 5rem;

    background-color: var(--couleur-thème);
    background-size: cover;
    background-position: center;

    font-weight: bold;
    color: white;
}

header.titre h1 {
    font-size: 4.18rem;
}

header.titre h1 span {
    text-transform: uppercase;
}

header.titre > p {
    font-size: 1.25rem;
}

@media screen and (max-width: 62.5rem) {
    header.logo-nav {
        position: relative;

        justify-content: space-between;

        padding-right: 2.25rem;
    }

    header.logo-nav > a.logo {
        margin-right: 0;
    }

    header.logo-nav .sandwich {
        height: 2.5rem;
        width: 2.5rem;

        flex-shrink: 0;

        display: grid;
        grid-template-columns: 1fr;
        grid-template-rows: 1fr;

        align-items: center;

        cursor: pointer;
    }

    header.logo-nav:not(.nav-ouverte) nav {
        display: none;
    }

    header.logo-nav nav {

        max-width: 100vw;
        width: 100%;

        padding: 2.5rem 0;
        padding-bottom: 5.5rem;

        position: absolute;
        top: 100%;
        left: 0;

        z-index: 100;

        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;

        background-color: white;
    }

    header.logo-nav nav ul {
        margin: 0;

        flex-direction: column;
    }

    header.logo-nav nav ul li:nth-child(n+2) {
        margin-left: 0;
        margin-top: 1.5rem;
    }

    header.logo-nav nav ul li {
        font-size: 1.5rem;

        text-align: left;
    }

    header.titre {
        z-index: 1;
    }

    header.logo-nav .sandwich > img {
        height: 100%;
        width: 100%;

        grid-column: 1 / 1;
        grid-row: 1 / 1;

        object-fit: contain;
        object-position: center;

        opacity: 1;

        transition: opacity 50ms linear, transform 50ms linear;
    }

    header.logo-nav .sandwich img.fermer {
        height: 80%;

        opacity: 0;
        transform: rotate(0deg);
    }

    header.logo-nav.nav-ouverte img.ouvrir {
        transform: rotate(90deg);
        opacity: 0;
    }

    header.logo-nav.nav-ouverte img.fermer {
        transform: rotate(90deg);
        opacity: 1;
    }

    header.logo-nav.nav-ouverte ~ * {
        filter: grayscale(100%) brightness(60%);

        pointer-events: none;
    }
}

@media screen and (max-width: 46.875rem) {
    header.titre {
        display: none;
    }
}

@media screen and (max-width: 24.06rem) {
    header.logo-nav .logo img {
        width: 15rem;
    }

    header.logo-nav {
        flex-wrap: wrap;
    }
}