* {
    box-sizing: border-box;
}

.site-header {
    flex: 0 0 50px;
    height: 50px;
    max-height: 50px;
    background: #fff;
    border-bottom: 1px solid #ddd;
    overflow: hidden;
}

.site-header-inner {
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.site-logo {
    font-weight: bold;
    color: #222;
    text-decoration: none;
    white-space: nowrap;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
}

.site-nav a,
.site-nav-button {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 10px;
    border-radius: 8px;
    background: #eef3f8;
    color: #1f6feb;
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.site-nav a:hover,
.site-nav a.active,
.site-nav-button:hover {
    background: #dce8f5;
}

.site-nav-form {
    margin: 0;
}

.site-nav-button {
    border: 0;
    cursor: pointer;
    font: inherit;
}


.impersonation-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 8px 14px;
    background: #fff3cd;
    border-bottom: 1px solid #e3c46d;
    color: #4a3a00;
    font-size: 14px;
}

.impersonation-banner-form {
    margin: 0;
}

.impersonation-banner button {
    min-height: 30px;
    padding: 5px 9px;
    border: 1px solid #a88724;
    border-radius: 7px;
    background: #fff8df;
    color: #3c3000;
    cursor: pointer;
    font: inherit;
}

.impersonation-banner button:hover {
    background: #ffefb3;
}

@media (max-width: 600px) {
    .site-header-inner {
        padding: 0 10px;
        gap: 10px;
    }

    .site-nav a,
.site-nav-button {
        height: 32px;
        padding: 0 8px;
        font-size: 14px;
    }
}