/* ==========================================================
   Navigation feature
   ========================================================== */

.site-header {
    position: absolute;
    z-index: 20;
    inset: 0 0 auto;
    min-height: var(--header-height);
    border-bottom: 1px solid var(--color-border);
    background: linear-gradient(to bottom, rgb(16 19 26 / 82%), transparent);
}

.site-header__inner {
    display: flex;
    min-height: var(--header-height);
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.site-brand {
    position: relative;
    z-index: 22;
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-title);
    font-size: clamp(1.05rem, 0.95rem + 0.4vw, 1.35rem);
    letter-spacing: 0.045em;
}

.site-brand__logo {
    width: 2.65rem;
    height: 2.65rem;
    object-fit: contain;
    filter: drop-shadow(0 0 0.5rem rgb(214 183 122 / 16%));
}

.site-navigation {
    display: flex;
    align-items: center;
    gap: var(--space-7);
}

.site-navigation__list {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
}

.site-navigation__link,
.language-switcher__link {
    position: relative;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    transition:
        color var(--transition-fast),
        opacity var(--transition-fast);
}

.site-navigation__link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: -0.55rem;
    height: 1px;
    background: var(--color-accent);
    transition: right var(--transition);
}

.site-navigation__link:hover,
.site-navigation__link[aria-current="page"],
.language-switcher__link:hover,
.language-switcher__link[aria-current="page"] {
    color: var(--color-text);
}

.site-navigation__link:hover::after,
.site-navigation__link[aria-current="page"]::after {
    right: 0;
}

.language-switcher {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.language-switcher__separator {
    color: var(--color-border);
}

.menu-toggle {
    position: relative;
    z-index: 22;
    display: none;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
}

.menu-toggle__line,
.menu-toggle__line::before,
.menu-toggle__line::after {
    position: absolute;
    left: 50%;
    width: 1.45rem;
    height: 1px;
    background: currentColor;
    transition:
        transform var(--transition),
        opacity var(--transition);
}

.menu-toggle__line {
    top: 50%;
    transform: translate(-50%, -50%);
}

.menu-toggle__line::before,
.menu-toggle__line::after {
    content: "";
    transform: translateX(-50%);
}

.menu-toggle__line::before {
    top: -0.48rem;
}

.menu-toggle__line::after {
    top: 0.48rem;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line::before {
    transform: translateX(-50%) translateY(0.48rem) rotate(45deg);
    background: var(--color-text);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line::after {
    transform: translateX(-50%) translateY(-0.48rem) rotate(-45deg);
    background: var(--color-text);
}

@media (max-width: 900px) {
    .menu-toggle {
        display: block;
    }

    .site-navigation {
        position: fixed;
        inset: 0;
        z-index: 21;
        display: grid;
        align-content: center;
        justify-items: center;
        gap: var(--space-7);
        padding: calc(var(--header-height) + var(--space-6)) var(--space-5) var(--space-6);
        background: rgb(16 19 26 / 98%);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-1rem);
        transition:
            opacity var(--transition),
            visibility var(--transition),
            transform var(--transition);
    }

    .site-navigation[data-open="true"] {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .site-navigation__list {
        flex-direction: column;
        gap: var(--space-5);
    }

    .site-navigation__link {
        font-family: var(--font-title);
        font-size: clamp(1.65rem, 6vw, 2.6rem);
        letter-spacing: 0.03em;
        text-transform: none;
    }

    .language-switcher__link {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 520px) {
    .site-brand__text {
        max-width: 11rem;
        line-height: 1.1;
    }
}