header {
    padding: 0px 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 10000;
    border-bottom: 1px solid var(--line);
}

header img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

nav ul {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link, header li a {
    color: var(--muted);
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: color 0.3s;
    text-transform: uppercase;
}

.nav-link:hover, header li a:hover {
    color: var(--text);
}

.header-social img {
    width: 38px;
    height: 38px;
    transition: filter 0.3s;
}

.header-social img:hover {
    filter: brightness(0) invert(1);
    cursor: pointer;
}

@media (max-width: 768px) {
    header {
        padding: 0 20px;
    }

    header img {
        width: 55px;
        height: 55px;
    }

    nav ul {
        gap: 20px;
    }

    .nav-link {
        font-size: 10px;
        letter-spacing: 0.5px;
    }
}