div#masthead .pandoc-navigation {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: auto;
}

div#masthead .pandoc-navigation__container {
    position: relative;
    display: block;
}

div#masthead .pandoc-navigation__menu {
    border-radius: 0.25rem;
    padding: 0 1rem;
    margin-top: 0;
    opacity: 0;
    visibility: hidden;
    transition:
            opacity 0.3s ease,
            visibility 0s linear 0.3s;
    white-space: nowrap;
    display: flex;
    gap: 2rem;
}

.pandoc-navigation__button-icon {
    line-height: 0;
    transition: transform 0.3s ease;
    width: 1rem;
}

div#masthead .pandoc-navigation__button:hover .pandoc-navigation__button-icon {
    transform: rotate(90deg);
}

div#masthead .pandoc-navigation__menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
}

div#masthead .pandoc-navigation__menu.is-visible {
    opacity: 1;
    visibility: visible;
    transition:
            opacity 0.3s ease,
            visibility 0s linear;
}

div#masthead .pandoc-navigation__menu > li {
    font-size: var(--fs-16);
    padding: 0;
    position: relative;
    overflow: hidden;
}

div#masthead .pandoc-navigation__menu > li:not(:last-child) {
    margin-bottom: 0;
}

div#masthead .pandoc-navigation__menu > li:after {
    content:"";
    position:absolute;
    left:0;
    top: calc(100% - 0.5rem);
    background: var(--c-primary);
    width:0%;
    height: 0.5rem;
    z-index: -1;
    transition: width 0.3s ease;
}

div#masthead .pandoc-navigation__menu > li:hover:after {
    width:100%;
}

div#masthead .pandoc-navigation__menu > li > a {
    display: block;
    transform: translateY(100%);
    transition: transform 0.25s ease;
    text-decoration: none;
    color: var(--c-text);
}

div#masthead .pandoc-navigation__menu.is-visible > li > a {
    transform: translateY(0);
}

/* Délais plus courts pour la disparition */
div#masthead .pandoc-navigation__menu > li:nth-child(1) > a { transition-delay: 0.05s; }
div#masthead .pandoc-navigation__menu > li:nth-child(2) > a { transition-delay: 0.1s; }
div#masthead .pandoc-navigation__menu > li:nth-child(3) > a { transition-delay: 0.15s; }
div#masthead .pandoc-navigation__menu > li:nth-child(4) > a { transition-delay: 0.2s; }
div#masthead .pandoc-navigation__menu > li:nth-child(5) > a { transition-delay: 0.25s; }
div#masthead .pandoc-navigation__menu > li:nth-child(6) > a { transition-delay: 0.3s; }
div#masthead .pandoc-navigation__menu > li:nth-child(7) > a { transition-delay: 0.35s; }
div#masthead .pandoc-navigation__menu > li:nth-child(8) > a { transition-delay: 0.4s; }
div#masthead .pandoc-navigation__menu > li:nth-child(9) > a { transition-delay: 0.45s; }
div#masthead .pandoc-navigation__menu > li:nth-child(10) > a { transition-delay: 0.5s; }

/* Reset des délais à la disparition */
div#masthead .pandoc-navigation__menu:not(.is-visible) > li > a {
    transition-delay: 0s;
}

div#masthead .pandoc-navigation__button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: calc(0.75rem + 0.05rem);
    color: var(--c-white);
    background: var(--c-background-dark);
    border-radius: 0.5rem;
    font-size: var(--fs-12);
}

div#masthead .pandoc-navigation__button span:first-child {
    display: block;
    width: 1.5rem;
    height: 1px;
    background: currentColor;
}

@media (max-width: 1200px) {
    div#masthead .pandoc-navigation__menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--c-background-light);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        padding: 2rem;
        border-radius: 0;
        z-index: 9998;
    }

    div#masthead .pandoc-navigation__menu > li > a {
        font-size: 2.2rem;
        text-transform: uppercase;
    }

    div#masthead .pandoc-navigation__button {
        position: relative;
        z-index: 9999;
    }

    div#masthead .pandoc-navigation.is-active .pandoc-navigation__button-icon {
        transform: rotate(45deg);
    }

    body.menu-open {
        overflow: hidden;
    }
}

@media (max-width: 600px) {

    div#masthead .pandoc-navigation__menu {
        padding:16px;
        white-space: break-spaces;
    }

    div#masthead .pandoc-navigation__menu > li {
        width:100%;
        text-align:center;
    }

    div#masthead .pandoc-navigation__menu > li > a {
        width:100%;
        font-size: 30px;
    }

}

@media (max-width: 450px) {

    div#masthead .pandoc-navigation__menu > li > a {
        font-size: 24px;
    }

}