.impersonation-banner {
    position: relative;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    min-height: 42px;
    padding: 7px 18px;
    border-bottom: 1px solid #b45309;
    background: #fffbeb;
    color: #78350f;
    font: 500 13px/1.4 Poppins, sans-serif;
}
.impersonation-banner form { margin: 0; }
.impersonation-banner button {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 30px;
    padding: 5px 10px;
    border: 1px solid #92400e;
    border-radius: 4px;
    background: #92400e;
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}
.impersonation-banner button:hover,
.impersonation-banner button:focus-visible { background: #78350f; }
@media (max-width: 640px) {
    .impersonation-banner { align-items: flex-start; justify-content: space-between; padding-inline: 12px; }
    .impersonation-banner span { min-width: 0; }
    .impersonation-banner button { white-space: nowrap; }
}