/* ==========================================================================
   Site header — dark gray bar with Bilimore nav
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--color-charcoal);
    color: var(--color-cream);
}

.site-header__inner {
    max-width: var(--page-max);
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
    padding-inline: clamp(16px, 1.2vw, 20px) clamp(16px, 6vw, 96px);
}

.site-header__brand,
.site-nav__link {
    font-family: var(--font-display);
    font-size: 1.375rem;
    line-height: 1;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--color-cream);
}

.site-nav__list {
    display: flex;
    gap: clamp(32px, 3.6vw, 56px);
}

.site-nav__link {
    position: relative;
    display: inline-block;
    padding-block: 13px;
}

.site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 8px;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transition: transform var(--duration) var(--ease);
}

.site-nav__link:hover::after {
    transform: scaleX(1);
}

/* Mobile toggle */
.site-header__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 40px;
    height: 40px;
    padding: 8px;
}

.site-header__toggle-bar {
    display: block;
    height: 1px;
    background: var(--color-cream);
    transition: transform var(--duration) var(--ease);
}

@media (max-width: 640px) {
    .site-header__inner {
        flex-wrap: wrap;
        padding-inline: 16px;
    }

    .site-header__brand {
        font-size: 1.2rem;
    }

    .site-header__toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        width: 100%;
        padding-bottom: 12px;
    }

    .site-nav.is-open {
        display: block;
    }

    .site-nav__list {
        flex-direction: column;
        gap: 0;
    }

    .site-nav__link {
        padding-block: 12px;
        font-size: 1.2rem;
    }

    .site-nav__link::after {
        bottom: 6px;
    }

    .site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:first-of-type {
        transform: translateY(3.5px) rotate(45deg);
    }

    .site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:last-of-type {
        transform: translateY(-3.5px) rotate(-45deg);
    }
}