.site-header {
    position: fixed;
    z-index: 100;
    top: 0;
    right: 0;
    left: 0;
    padding: 22px var(--gutter);
    transition:
        padding 300ms ease,
        background 300ms ease,
        border-color 300ms ease;
}

.site-header.is-scrolled {
    padding-top: 14px;
    padding-bottom: 14px;
    background: rgba(246, 244, 239, 0.9);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.site-header__inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 30px;
    align-items: center;
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
}

.site-header .menu-toggle {
    display: none;
}

.site-header__actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

@media (max-width: 960px) {
    .site-header .menu-toggle {
        display: block;
    }
}

.site-brand {
    display: flex;
    gap: 10px;
    align-items: center;
    white-space: nowrap;
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.site-brand__subtitle {
    color: var(--color-muted);
}

.site-brand__separator {
    width: 6px;
    height: 1px;
    background: var(--color-muted);
}

@media (max-width: 560px) {
    .site-brand__subtitle,
    .site-brand__separator {
        display: none;
    }
}


.desktop-navigation__list {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.desktop-navigation__list a {
    position: relative;
    padding: 8px 0;
    color: var(--color-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.desktop-navigation__list a::after {
    position: absolute;
    right: 0;
    bottom: 2px;
    left: 0;
    height: 1px;
    background: var(--color-text);
    content: "";
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 300ms ease;
}

.desktop-navigation__list a:hover {
    color: var(--color-text);
}

.desktop-navigation__list a:hover::after,
.desktop-navigation__list a.is-active::after {
    transform: scaleX(1);
}

.desktop-navigation__list a.is-active,
.mobile-navigation__list a.is-active {
    color: var(--color-text);
}

.mobile-navigation__list a.is-active {
    font-style: italic;
}

@media (max-width: 1100px) {
    .desktop-navigation {
        display: none;
    }
}


.language-switcher {
    display: flex;
    gap: 5px;
    font-family: var(--font-mono);
    font-size: 11px;
}

.language-switcher span:not(.is-active) {
    color: var(--color-muted);
}


.menu-toggle {
    display: none;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 0;
    background: transparent;
}

.menu-toggle span {
    display: block;
    width: 21px;
    height: 1px;
    margin: 5px auto;
    background: currentColor;
    transition: transform 300ms ease;
}

.menu-toggle.is-active span:first-child {
    transform: translateY(3px) rotate(45deg);
}

.menu-toggle.is-active span:last-child {
    transform: translateY(-3px) rotate(-45deg);
}

@media (max-width: 1100px) {

    .menu-toggle {
        display: block;
    }
}


.mobile-menu {
    position: fixed;
    z-index: 90;
    inset: 0;
    display: flex;
    visibility: hidden;
    background: var(--color-background);
    opacity: 0;
    transform: translateY(-30px);
    transition:
        opacity 400ms ease,
        transform 400ms ease,
        visibility 400ms;
}

.mobile-menu.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu__inner {
    width: 100%;
    padding: 130px var(--gutter) 50px;
}


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

.mobile-navigation__list li {
    border-bottom: 1px solid var(--color-border);
}

.mobile-navigation__list a {
    display: block;
    padding: 16px 0;
    font-family: var(--font-serif);
    font-size: clamp(36px, 9vw, 64px);
    line-height: 1;
}



/* ==================================================
   Barra laterale
   ================================================== */

.side-rail {
    position: fixed !important;
    z-index: 80;
    top: 0;
    bottom: 0;
    left: 0;

    display: flex !important;
    width: 64px;
    height: 100vh;
    flex-direction: column !important;
    align-items: center;
    justify-content: space-between;

    padding: 125px 0 35px;
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 9px;
    line-height: 1;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    pointer-events: none;
}

.side-rail__top,
.side-rail__bottom {
    display: block;
    white-space: nowrap;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

.side-rail__middle {
    display: flex !important;
    flex-direction: column !important;
    gap: 7px;
    align-items: center;
}

.side-rail__middle strong {
    color: var(--color-text);
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    line-height: 1;
}

.side-rail__middle i {
    display: block;
    width: 1px;
    height: 42px;
    background: var(--color-border);
}

.side-rail__middle span {
    line-height: 1;
}

.site-main,
.site-footer {
    margin-left: 64px;
}

@media (max-width: 960px) {
    .side-rail {
        display: none !important;
    }

    .site-main,
    .site-footer {
        margin-left: 0;
    }
}

/* ==================================================
   FINE Barra laterale
   ================================================== */