/* =========================================================
   TufKo header and navigation
   ========================================================= */

.site-header {
    position: relative;
    z-index: 100;
    background: var(--tufko-white);
    border-bottom: 1px solid var(--tufko-grey-300);
}

.site-header__inner {
    display: grid;
    grid-template-columns: minmax(190px, 270px) 1fr;
    align-items: center;
    gap: 2rem;
    min-height: 96px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    text-decoration: none;
}

.site-brand__logo {
    width: min(100%, 270px);
    height: auto;
}

.site-navigation {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: clamp(1.25rem, 3vw, 3rem);
}

/* Primary navigation */

.primary-navigation {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
}

.primary-navigation a {
    position: relative;
    padding-block: 0.6rem;
    color: var(--tufko-grey-900);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-transform: uppercase;
}

.primary-navigation a::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--tufko-orange);
    content: "";
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-fast);
}

.primary-navigation a:hover::after,
.primary-navigation a:focus-visible::after {
    transform: scaleX(1);
}

/* Portal navigation */

.portal-navigation {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 0.4rem;
    align-items: center;
}

.portal-navigation__label {
    grid-column: 1 / -1;
    color: var(--tufko-grey-700);
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-align: right;
    text-transform: uppercase;
}

.portal-link {
    padding: 0.45rem 0.65rem;
    border: 1px solid var(--tufko-grey-300);
    border-radius: 3px;
    color: var(--tufko-grey-900);
    font-size: 0.75rem;
    font-weight: 700;
    text-decoration: none;
    transition:
        border-color var(--transition-fast),
        color var(--transition-fast),
        background-color var(--transition-fast);
}

.portal-link:hover,
.portal-link:focus-visible {
    border-color: var(--tufko-orange);
    color: var(--tufko-orange);
}

.portal-link--admin {
    background: var(--tufko-charcoal);
    border-color: var(--tufko-charcoal);
    color: var(--tufko-white);
}

.portal-link--admin:hover,
.portal-link--admin:focus-visible {
    background: var(--tufko-orange);
    border-color: var(--tufko-orange);
    color: var(--tufko-white);
}

/* Mobile menu button */

.mobile-menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--tufko-grey-300);
    border-radius: 3px;
    cursor: pointer;
}

.mobile-menu-toggle__line {
    display: block;
    width: 100%;
    height: 2px;
    margin-block: 5px;
    background: var(--tufko-black);
    transition:
        transform var(--transition-fast),
        opacity var(--transition-fast);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Tablet and mobile navigation */

@media (max-width: 900px) {
    body.mobile-menu-open {
        overflow: hidden;
    }

    .site-header__inner {
        grid-template-columns: minmax(170px, 230px) auto;
        justify-content: space-between;
        min-height: 82px;
    }

    .mobile-menu-toggle {
        display: block;
        justify-self: end;
    }

    .site-navigation {
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        display: none;
        max-height: calc(100vh - 82px);
        overflow-y: auto;
        padding: 1.5rem var(--page-gutter) 2rem;
        background: var(--tufko-white);
        border-top: 1px solid var(--tufko-grey-300);
        border-bottom: 4px solid var(--tufko-orange);
        box-shadow: 0 1rem 2rem rgb(0 0 0 / 15%);
    }

    .site-navigation--open {
        display: block;
    }

    .primary-navigation {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .primary-navigation a {
        padding: 1rem 0;
        border-bottom: 1px solid var(--tufko-grey-300);
        font-size: 1.05rem;
    }

    .primary-navigation a::after {
        display: none;
    }

    .portal-navigation {
        grid-template-columns: 1fr;
        gap: 0.65rem;
        margin-top: 1.75rem;
    }

    .portal-navigation__label {
        grid-column: auto;
        margin-bottom: 0.25rem;
        text-align: left;
    }

    .portal-link {
        padding: 0.8rem 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .site-header__inner {
        grid-template-columns: minmax(140px, 200px) auto;
        gap: 1rem;
    }

    .site-brand__logo {
        width: min(100%, 200px);
    }
}