/* ==========================================================================
   Layout: page chrome shared by every page
   Skip link, layout primitives, header, navigation, footer
   ========================================================================== */

/* Skip link -------------------------------------------------------------- */

.skip-link {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    padding: 0.7rem 1.1rem;
    border-radius: var(--radius);
    background: var(--primary-900);
    color: var(--white);
    font-weight: 700;
    text-decoration: none;
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: none;
    color: var(--white);
}

/* Layout primitives ------------------------------------------------------ */

.container {
    width: min(100% - 2 * var(--gutter), var(--maxw));
    margin-inline: auto;
}

.section {
    padding-block: clamp(3.5rem, 8vw, 6rem);
}

.section--tint {
    border-block: 1px solid var(--border-200);
    background: var(--surface-100);
}

.grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: clamp(1.25rem, 2vw, 1.75rem);
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-top: 4px solid var(--primary-700);
    border-bottom: 1px solid var(--border-200);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.site-header__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    column-gap: 1rem;
    min-height: var(--header-height);
}

.brand {
    display: inline-flex;
    flex: none;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-serif);
    font-size: clamp(1.1rem, 1.5vw, 1.3rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--primary-900);
    text-decoration: none;
    white-space: nowrap;
}

.brand:hover {
    color: var(--primary-800);
}

.brand svg {
    flex: none;
}

.brand__tld {
    font-family: var(--font-sans);
    font-size: 0.8em;
    font-weight: 600;
    color: var(--ink-500);
}

/* Navigation ------------------------------------------------------------- */

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 0;
    border-radius: var(--radius);
    background: none;
    color: var(--primary-800);
    cursor: pointer;
}

.nav-toggle__close,
.nav-toggle[aria-expanded="true"] .nav-toggle__open {
    display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__close {
    display: block;
}

.nav {
    flex-basis: 100%;
    padding-block: 0.25rem 1.5rem;
}

.nav__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav__list a {
    display: block;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-200);
    color: var(--ink-700);
    font-weight: 600;
    text-decoration: none;
}

.nav__list a:hover,
.nav__list a[aria-current="page"] {
    color: var(--primary-800);
}

.nav__cta {
    width: 100%;
    margin-top: 1rem;
}

/* Collapse the menu only when JavaScript can reopen it */
@media (scripting: enabled) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav:not([data-open="true"]) {
        display: none;
    }
}

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

.site-footer {
    padding-block: 0 2rem;
    border-top: 4px solid var(--primary-700);
    background: var(--primary-900);
    color: var(--on-dark-muted);
}

.site-footer a {
    color: var(--on-dark);
}

.site-footer a:hover {
    color: var(--white);
}

.site-footer .btn--primary,
.site-footer .btn--primary:hover {
    color: var(--accent-ink);
}

.site-footer :focus-visible {
    outline: var(--focus-ring-on-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
}

/* Brand block: a full-width band above the menu columns */
.footer-grid > :first-child {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem 2.5rem;
    padding-block: 2.5rem 2rem;
    border-bottom: 1px solid rgb(255 255 255 / 0.14);
}

.site-footer .footer__brand {
    font-size: clamp(1.35rem, 2.2vw, 1.7rem);
    color: var(--white);
}

.footer__about {
    flex: 1 1 22rem;
    margin: 0;
    font-size: 0.95rem;
}

.footer__title {
    margin-bottom: 0.9rem;
    font-size: 1.15rem;
    color: var(--white);
}

.footer__list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer__list li {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.footer__list a {
    text-decoration: none;
}

.footer__list a:hover {
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem 1.5rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgb(255 255 255 / 0.14);
    font-size: 0.85rem;
}

.footer-bottom p {
    margin: 0;
}

/* Tablet ----------------------------------------------------------------- */

@media (min-width: 40em) {
    .grid--2,
    .grid--3,
    .grid--4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .footer-grid > :first-child {
        grid-column: 1 / -1;
    }
}

/* Desktop ---------------------------------------------------------------- */

@media (min-width: 64em) {
    .grid--3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid--4 {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* Wide: full navigation fits in one row ----------------------------------- */

@media (min-width: 75em) {
    /* Longer translated labels wrap onto a second row instead of overflowing */
    .site-header__inner {
        row-gap: 0.25rem;
        padding-block: 0.5rem;
    }

    .nav-toggle {
        display: none;
    }

    .nav,
    .nav:not([data-open="true"]) {
        display: flex;
        flex-basis: auto;
        flex-wrap: wrap;
        justify-content: flex-end;
        align-items: center;
        gap: 0.25rem clamp(0.6rem, 1.1vw, 1.1rem);
        margin-inline-start: auto;
        padding: 0;
    }

    .nav__list {
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 0.25rem;
    }

    .nav__list a {
        padding: 0.45rem 0.55rem;
        border-bottom: 0;
        border-radius: var(--radius);
        font-size: 0.94rem;
        white-space: nowrap;
    }

    .nav__list a:hover {
        background: var(--surface-100);
    }

    .nav__list a[aria-current="page"] {
        background: var(--secondary-100);
        color: var(--primary-900);
    }

    .nav__cta {
        width: auto;
        margin-top: 0;
        white-space: nowrap;
    }
}