.site-header {
    position: sticky;
    z-index: 20;
    top: 0;
    border-bottom: 1px solid var(--gray-200);
    background: rgba(255,255,255,.94);
    backdrop-filter: blur(.75rem);
}

.header-inner, .footer-inner {
    display: flex;
    min-height: 4.5rem;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.custom-logo {
    width: auto;
    max-height: 3rem;
}

.site-title {
    color: var(--text);
    font-weight: 750;
    text-decoration: none;
}

.primary-navigation ul, .site-footer ul {
    display: flex;
    margin: 0;
    padding: 0;
    gap: 1.25rem;
    list-style: none;
}

.primary-navigation a, .site-footer a {
    color: inherit;
    text-decoration: none;
}

.menu-toggle {
    display: none;
    padding: .5rem;
    border: 0;
    background: transparent;
}

.menu-toggle span[aria-hidden] {
    display: block;
    width: 1.5rem;
    height: 2px;
    margin: .3rem;
    background: currentColor;
}

.button {
    display: inline-flex;
    padding: .75rem 1.1rem;
    border-radius: var(--rounded-md);
    color: #fff;
    background: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.button:hover {
    color: #fff;
    background: var(--gray-900);
}

.card, .entry-card {
    padding: var(--space-md);
    border: 1px solid var(--gray-200);
    border-radius: var(--rounded-md);
    background: var(--white);
    box-shadow: none;
}

.entry-card + .entry-card {
    margin-top: var(--space-md);
}

.go-top {
    position: fixed;
    z-index: 15;
    right: 1rem;
    bottom: 1rem;
    display: grid;
    width: 2.75rem;
    height: 2.75rem;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--primary);
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transform: translateY(.5rem);
    transition: .2s ease;
}

.go-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

.site-footer {
    border-top: 1px solid var(--gray-200);
}

@media (max-width: 47.99rem) {
    .menu-toggle {
        display: block;
    }

    .primary-navigation {
        display: none;
        position: absolute;
        inset: 100% 0 auto;
        padding: 1rem;
        border-bottom: 1px solid var(--gray-200);
        background: var(--white);
    }

    .primary-navigation.is-open {
        display: block;
    }

    .primary-navigation ul {
        flex-direction: column;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        padding-block: 1.5rem;
    }

}