:root {
    --site-header-height: 60px;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--site-header-height);
    display: flex;
    align-items: center;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
    max-width: none;
    padding: 0 24px;
}

.site-header__brand {
    text-decoration: none;
    color: inherit;
}

.site-header__nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.site-header__link {
    color: rgba(232, 238, 247, 0.62);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -0.01em;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color 0.2s ease, background 0.2s ease;
}

.site-header__link:hover {
    color: #E8EEF7;
    background: rgba(255, 255, 255, 0.04);
}

.site-header__link[aria-current="page"] {
    color: #E8EEF7;
}

.site-header.is-scrolled {
    background: rgba(7, 10, 15, 0.45);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: rgba(255, 255, 255, 0.04);
}

@media (prefers-reduced-motion: reduce) {
    .site-header {
        transition: none;
    }
}

@media (max-width: 768px) {
    :root {
        --site-header-height: 52px;
    }

    .site-header__inner {
        padding: 0 20px;
    }

    .site-header .nav-brand-icon {
        width: 32px;
        height: 32px;
        border-radius: 8px;
    }

    .site-header .nav-brand.product-title {
        font-size: 1.125rem;
    }
}

@media (min-width: 900px) {
    .site-header__inner {
        padding: 0 48px;
    }
}

@media (min-width: 1200px) {
    .site-header__inner {
        padding: 0 56px;
    }
}