/* ---------- Skip-Link ---------- */

.skip-link
{
    position: absolute;
    top: -4rem;
    left: 1rem;
    z-index: 200;
    padding: 0.6rem 1rem;
    background: var(--color-ink);
    color: var(--color-paper);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-decoration: none;
}

.skip-link:focus
{
    top: 1rem;
}

/* ---------- Header ---------- */

.site-header
{
    position: sticky;
    top: 0;
    z-index: 50;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.site-header.is-scrolled
{
    background: rgba(244, 239, 230, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 1px 0 var(--color-line);
}

.site-header__inner
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    min-height: 5rem;
}

.brand
{
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand__mark
{
    flex: none;
    width: 2.5rem;
    height: 2.5rem;
}

.brand__name
{
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.brand__name strong
{
    font-weight: 800;
}

.site-nav
{
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.site-nav__list
{
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-nav__list a
{
    position: relative;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
}

.site-nav__list a::after
{
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.3rem;
    width: 100%;
    height: 2px;
    background: var(--color-green);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s var(--ease);
}

.site-nav__list a:hover::after,
.site-nav__list a[aria-current="page"]::after
{
    transform: scaleX(1);
    transform-origin: left;
}

.site-nav__cta
{
    padding: 0.7rem 1.2rem;
    box-shadow: 3px 3px 0 var(--color-ink);
}

.nav-toggle
{
    display: none;
}

@media (max-width: 860px)
{
    .nav-toggle
    {
        position: relative;
        z-index: 60;
        display: grid;
        place-content: center;
        gap: 6px;
        width: 2.8rem;
        aspect-ratio: 1;
        padding: 0;
        border: var(--stroke);
        border-radius: 50%;
        background: var(--color-paper-light);
        cursor: pointer;
    }

    .nav-toggle__line
    {
        width: 1.1rem;
        height: 2px;
        background: var(--color-ink);
        transition: transform 0.3s var(--ease);
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__line:first-of-type
    {
        transform: translateY(4px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle__line:last-of-type
    {
        transform: translateY(-4px) rotate(-45deg);
    }

    .site-nav
    {
        position: fixed;
        inset: 0;
        z-index: 55;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 2.5rem;
        padding: 6rem var(--gutter) 3rem;
        background: var(--color-paper);
        visibility: hidden;
        opacity: 0;
        transition: opacity 0.3s, visibility 0.3s;
    }

    .site-nav.is-open
    {
        visibility: visible;
        opacity: 1;
    }

    .site-nav__list
    {
        flex-direction: column;
        gap: 1.25rem;
    }

    .site-nav__list a
    {
        font-size: var(--text-2xl);
        font-weight: 800;
        letter-spacing: -0.03em;
    }
}

/* ---------- Footer ---------- */

.site-footer
{
    padding-top: clamp(3rem, 2rem + 4vw, 6rem);
    border-top: var(--stroke);
    background: var(--color-paper-light);
}

.site-footer__inner
{
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
}

.site-footer__claim
{
    max-width: 26rem;
    margin-top: 1.5rem;
    font-family: var(--font-sans);
    font-size: var(--text-xl);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--color-ink);
}

.site-footer__claim .serif-italic
{
    font-weight: 500;
}

.site-footer__text
{
    max-width: 24rem;
    margin-top: 0.9rem;
    font-size: var(--text-sm);
    color: var(--color-ink-soft);
}

.site-footer__cta
{
    margin-top: 1.5rem;
}

.site-footer__nav
{
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.site-footer__nav a
{
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
}

.site-footer__nav a:hover
{
    color: var(--color-green);
}

.site-footer__label
{
    margin-bottom: 0.4rem;
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-muted);
}

.site-footer__bottom
{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 4rem;
    padding-block: 1.5rem;
    border-top: 1px solid var(--color-line);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    color: var(--color-muted);
}

@media (max-width: 700px)
{
    .site-footer__inner
    {
        grid-template-columns: 1fr 1fr;
    }

    .site-footer__brand
    {
        grid-column: 1 / -1;
    }
}