.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(245, 245, 247, 0.82);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: saturate(180%) blur(20px);
}

.site-header__inner {
    width: min(var(--container), calc(100% - 40px));
    min-height: 86px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.04em;
}

.site-logo__image {
    width: 180px;
    height: auto;
    display: block;
}

.site-logo__mark {
    display: none;
}

.site-logo__text {
    font-size: 17px;
}

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

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 18px;
}

.site-login-link {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
    opacity: 0.88;
}

.site-login-link svg {
    width: 19px;
    height: 19px;
    fill: currentColor;
}

.site-login-link:hover,
.site-login-link:focus-visible {
    opacity: 1;
    background: var(--white);
    outline: none;
}


.site-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-nav a {
    color: var(--black);
    font-size: 13px;
    font-weight: 400;
    opacity: 0.82;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    opacity: 1;
    outline: none;
}

@media (max-width: 1024px) {
    body.mobile-menu-open {
        overflow: hidden;
    }

    .site-header {
        background: rgba(245, 245, 247, 0.96);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .site-header__inner {
        width: min(var(--container), calc(100% - 28px));
        min-height: 64px;
        align-items: center;
        flex-wrap: nowrap;
    }

    .site-logo__image {
        width: 150px;
    }

    .site-menu-toggle {
        width: 44px;
        height: 44px;
        padding: 0;
        border: 0;
        border-radius: 999px;
        background: transparent;
        display: inline-flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        cursor: pointer;
    }

    .site-menu-toggle span {
        width: 20px;
        height: 2px;
        border-radius: 999px;
        background: var(--black);
        transition: transform 180ms ease, opacity 180ms ease;
    }

    .site-menu-toggle:focus-visible {
        outline: 3px solid rgba(0, 113, 227, 0.28);
        outline-offset: 2px;
    }

    .site-header.is-menu-open .site-menu-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .site-header.is-menu-open .site-menu-toggle span:nth-child(2) {
        opacity: 0;
    }

    .site-header.is-menu-open .site-menu-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .site-menu-backdrop {
        position: fixed;
        inset: 0;
        z-index: 990;
        background: rgba(0, 0, 0, 0.44);
    }

    .site-menu-backdrop[hidden] {
        display: none;
    }

    .site-menu-backdrop.is-visible {
        display: block;
    }

    .site-nav {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        top: auto;
        z-index: 1010;
        width: auto;
        max-height: min(82vh, 560px);
        padding: 20px 20px max(22px, env(safe-area-inset-bottom));
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        overflow-y: auto;
        background: var(--white);
        border-radius: 28px 28px 0 0;
        box-shadow: 0 -18px 44px rgba(0, 0, 0, 0.18);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(105%);
        transition: transform 220ms ease, opacity 180ms ease, visibility 180ms ease;
    }

    .site-header.is-menu-open .site-nav {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-nav a {
        position: relative;
        padding: 20px 2px;
        border-bottom: 1px solid var(--gray-light);
        color: var(--black);
        font-size: 26px;
        font-weight: 600;
        line-height: 1.08;
        letter-spacing: -0.05em;
        opacity: 1;
    }

    .site-nav a:last-child {
        border-bottom: 0;
    }

    .site-nav a:hover,
    .site-nav a:focus-visible {
        color: var(--blue);
        outline: none;
        text-decoration: none;
    }

    .site-header__actions {
        display: none;
    }

    .site-login-link {
        width: 100%;
        height: 56px;
        border-radius: 18px;
    }

    .site-login-link svg {
        width: 22px;
        height: 22px;
    }
}

@media (max-width: 420px) {
    .site-nav a {
        font-size: 27px;
    }
}