.header,
.site-header {
    position: relative;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    width: 100%;
    min-height: 72px;
    padding: 0 clamp(24px, 5vw, 72px);
    border-bottom: 1px solid #24262d;
    background: rgba(8, 9, 13, 0.96);
}

.logo,
.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: #f4f4f6;
    text-decoration: none;
}

.logo-mark,
.brand-logo {
    display: inline-grid;
    flex: 0 0 38px;
    width: 38px;
    height: 38px;
    place-items: center;
    box-sizing: border-box;
    border: 1px solid #ef2632;
    background: transparent;
    color: #ef2632;
    font-size: 18px;
    line-height: 1;
    transform: none;
}

.logo-mark span {
    transform: none;
}

img.brand-logo {
    display: block;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 0;
    background: transparent;
    object-fit: contain;
    transform: none;
}

.brand-logo::after {
    display: none !important;
    content: none !important;
}

.logo-text,
.brand-text,
.logo > span:last-child {
    color: #f4f4f6;
    font-family:
        "Yu Gothic",
        "Hiragino Kaku Gothic ProN",
        Meiryo,
        sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    white-space: nowrap;
}

.header-right,
.header-user,
.header-navigation {
    display: flex;
    align-items: center;
    gap: 24px;
}

.header a,
.site-header nav a,
.header-navigation button {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
}

@media (max-width: 640px) {
    .header,
    .site-header {
        min-height: 62px;
        padding: 0 18px;
    }

    .header-version,
    .header-user > span {
        display: none;
    }

    .logo-text,
    .brand-text,
    .logo > span:last-child {
        font-size: 12px;
    }
}