.eist_popup_overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 9998;
}
.eist_popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(90vw, 620px);
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(0,0,0,.3);
    z-index: 9999;
    box-sizing: border-box;
}
.eist_popup p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    color: #1a1a1a;
}
.eist_popup_btn {
    display: flex;
    justify-content: flex-end;
    margin-top: 24px;
}
.eist_popup_btn button {
    background: #1f4ed8;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 12px 28px;
    cursor: pointer;
    font-size: 16px;
}
.eist_popup_btn button:hover {
    background: #163eb0;
}
.close-icon {
    position: absolute;
    top: 14px;
    right: 16px;
    font-size: 22px;
    cursor: pointer;
    line-height: 1;
}
.popup_contact {
    color: #1f4ed8;
    text-decoration: underline;
}