.site-header {
    position: absolute;
    z-index: 50;
    inset: 0 0 auto;
    min-height: var(--header-height);
    color: var(--color-white);
    transition: background-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

.site-header.is-scrolled {
    position: fixed;
    background: rgb(65 0 7 / 88%);
    box-shadow: var(--shadow-header);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.site-header__brand {
    position: absolute;
    top: 0;
    left: 1rem;
    width: clamp(7rem, 24vw, 9rem);
    transition: width var(--transition-base), transform var(--transition-base);
}

.site-header.is-scrolled .site-header__brand {
    width: 6.5rem;
}

.site-header__menu-button {
    position: relative;
    z-index: 70;
    width: 2.9rem;
    height: 2.9rem;
    display: grid;
    place-items: center;
    padding: 0;
    border: 0;
    border-radius: 50%;
    color: var(--color-white);
    background: rgb(105 0 13 / 92%);
    cursor: pointer;
}

.site-header__menu-icon,
.site-header__menu-icon::before,
.site-header__menu-icon::after {
    width: 1.35rem;
    height: 2px;
    display: block;
    background: currentColor;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__menu-icon {
    position: relative;
}

.site-header__menu-icon::before,
.site-header__menu-icon::after {
    position: absolute;
    left: 0;
    content: '';
}

.site-header__menu-icon::before { top: -0.42rem; }
.site-header__menu-icon::after { top: 0.42rem; }

.site-header__menu-button[aria-expanded='true'] .site-header__menu-icon {
    background: transparent;
}

.site-header__menu-button[aria-expanded='true'] .site-header__menu-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.site-header__menu-button[aria-expanded='true'] .site-header__menu-icon::after {
    top: 0;
    transform: rotate(-45deg);
}

.main-nav {
    position: fixed;
    z-index: 60;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 7rem 2rem 3rem;
    background: rgb(65 0 7 / 98%);
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base);
}

.main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.main-nav__list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.main-nav__link {
    position: relative;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.main-nav__link::after {
    position: absolute;
    right: 0;
    bottom: -0.4rem;
    left: 0;
    height: 1px;
    content: '';
    background: var(--color-gold-light);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
}

.main-nav__link:hover::after,
.main-nav__link[aria-current='page']::after {
    transform: scaleX(1);
}

body.menu-open {
    overflow: hidden;
}

@media (min-width: 64rem) {
    .site-header__inner {
        padding-left: 12rem;
    }

    .site-header__brand {
        left: clamp(1.5rem, 4vw, 4rem);
        width: clamp(9.5rem, 13vw, 12rem);
    }

    .site-header.is-scrolled .site-header__brand {
        width: 8.5rem;
        transform: translateY(-0.35rem);
    }

    .site-header__menu-button {
        display: none;
    }

    .main-nav {
        position: static;
        display: block;
        padding: 0;
        background: transparent;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .main-nav__list {
        flex-direction: row;
        justify-content: flex-end;
        gap: clamp(1.1rem, 2vw, 2.2rem);
    }

    .main-nav__link {
        font-size: clamp(0.72rem, 0.9vw, 0.92rem);
        white-space: nowrap;
    }
}