.site-header {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 18px;
    width: min(720px, calc(100vw - 40px));
    margin-left: 50%;
    transform: translateX(-50%);
    box-sizing: border-box;
}

.site-brand {
    width: 140px;
    height: 92px;
}

.brand-logo {
    position: relative;
    display: block;
    overflow: hidden;
    flex: 0 0 auto;
    border-radius: 18px;
    background: transparent;
    box-shadow: none;
    text-decoration: none;
}

.brand-logo img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transform: none;
}

.auth-brand-logo {
    width: 180px;
    height: 112px;
    margin: 0 auto 30px;
    border-radius: 24px;
}

.site-nav {
    display: grid;
    grid-template-columns: repeat(4, 112px);
    justify-content: end;
    gap: 12px;
    min-width: 0;
}

.site-nav a,
.site-nav form,
.site-nav button {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
}

.site-nav form {
    margin: 0;
}

.site-nav a,
.site-nav button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 12px;
    border: 1px solid #33415d;
    border-radius: 10px;
    background: rgba(92, 108, 255, 0.18);
    color: #aab4ff;
    font-family: inherit;
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    appearance: none;
}

.site-nav-guest {
    grid-template-columns: 112px;
}

@media (max-width: 560px) {
    .site-header {
        grid-template-columns: 108px minmax(0, 1fr);
        align-items: center;
        gap: 12px;
        width: 100%;
        margin-left: 0;
        transform: none;
    }

    .site-brand {
        width: 108px;
        height: 74px;
        border-radius: 16px;
    }

    .site-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        width: 100%;
    }

    .site-nav a,
    .site-nav button {
        height: 44px;
        padding: 0 6px;
        font-size: 16px;
    }

    .auth-brand-logo {
        width: 154px;
        height: 98px;
        margin-bottom: 24px;
    }
}
@media (min-width: 561px) {
    body .wrap {
        width: min(720px, calc(100vw - 40px));
        max-width: none;
        margin-right: 0;
        margin-left: max(20px, calc(50vw - 360px));
        padding-top: 120px;
        box-sizing: border-box;
    }

    .site-header {
        position: fixed;
        top: 28px;
        left: 50vw;
        margin-left: 0;
        transform: translateX(-50%);
        z-index: 100;
    }
}

@media (max-width: 560px) {
    body .wrap {
        width: calc(100vw - 40px);
        max-width: none;
        margin: 0 20px;
        padding: 94px 0 20px;
        box-sizing: border-box;
    }

    .site-header {
        position: fixed;
        top: 20px;
        left: 50vw;
        width: calc(100vw - 40px);
        margin-left: 0;
        transform: translateX(-50%);
        z-index: 100;
    }
}
/* Keep the header aligned horizontally across pages while allowing normal vertical scrolling. */
@media (min-width: 561px) {
    body .wrap {
        padding-top: 28px;
    }

    .site-header {
        position: static;
        width: 100%;
        margin-left: 0;
        transform: none;
        z-index: auto;
    }
}

@media (max-width: 560px) {
    body .wrap {
        padding: 20px;
    }

    .site-header {
        position: static;
        width: 100%;
        margin-left: 0;
        transform: none;
        z-index: auto;
    }
}
@media (max-width: 560px) {
    body .wrap {
        width: 100%;
        margin: 0;
    }
}