.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 58px;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-color);
    background: #fff;
}

.logo img {
    width: auto;
    height: 32px;
    display: block;
}

.left-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.help {
    font-size: 16px;
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
}

.help:hover,
.help[aria-current="page"] {
    color: var(--primary);
}

.setting img {
    width: 24px;
    height: 24px;
    display: block;
}

.setting {
    display: block;
    border-radius: 6px;
}

.setting:focus-visible,
.logo:focus-visible,
.help:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

@media (max-width: 480px) {
    .header {
        min-height: 46px;
        padding: 8px 16px;
    }

    .logo img {
        height: 24px;
    }

    .left-nav {
        gap: 16px;
    }

    .help {
        font-size: 14px;
    }

    .setting img {
        width: 20px;
        height: 20px;
    }
}