.nav-header-action {
    width: 2.65rem;
    height: 2.65rem;
    padding: .65rem;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    display: grid;
    flex: 0 0 auto;
    place-items: center;
    background: #fff;
    color: var(--color-forest);
    text-decoration: none;
    transition: border-color .2s, background .2s, transform .2s;
}

.nav-header-action:hover,
.nav-header-action:focus-visible,
.nav-header-action.is-active {
    border-color: var(--color-terra);
    background: #fff7f1;
    color: var(--color-terra);
    transform: translateY(-1px);
}

.nav-header-action svg {
    width: 1.2rem;
    height: 1.2rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
}

.nav-header-action > span {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.nav-header-action:is(button) { font: inherit; cursor: pointer; }
.main-nav > .nav-header-action + .nav-logout { margin-left: -1rem; }

/* Öffentliche Aktionen behalten unabhängig vom umgebenden Text dieselbe Größe. */
.button { font-size: .8rem; line-height: 1.25; }
.button--small { min-height: 2.25rem; padding: .45rem .75rem; font-size: .72rem; }

@media (max-width: 980px) {
    .main-nav .nav-header-action {
        width: 100%;
        height: auto;
        min-height: 2.75rem;
        padding: .7rem .35rem;
        border: 0;
        border-radius: .55rem;
        display: flex;
        justify-content: flex-start;
        gap: .65rem;
        background: transparent;
        transform: none;
    }

    .main-nav .nav-header-action:hover,
    .main-nav .nav-header-action:focus-visible,
    .main-nav .nav-header-action.is-active {
        background: var(--color-soft);
    }

    .main-nav .nav-header-action > span {
        position: static;
        width: auto;
        height: auto;
        margin: 0;
        overflow: visible;
        clip: auto;
        white-space: normal;
    }

    .main-nav > .nav-header-action + .nav-logout { margin-left: 0; }
    .main-nav .nav-logout { width: 100%; }
}