.form-success-popup {
    position: fixed;
    inset: 0;
    z-index: 20000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.form-success-popup.is-open {
    display: flex;
}

.form-success-popup__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.58);
}

.form-success-popup__dialog {
    position: relative;
    z-index: 1;
    width: min(100%, 390px);
    padding: 44px 34px 34px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
    text-align: center;
}

.form-success-popup__close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    border: 0;
    padding: 0;
    background: transparent;
    cursor: pointer;
}

.form-success-popup__close::before,
.form-success-popup__close::after {
    content: "";
    position: absolute;
    top: 16px;
    left: 8px;
    width: 18px;
    height: 2px;
    background: #333;
}

.form-success-popup__close::before {
    transform: rotate(45deg);
}

.form-success-popup__close::after {
    transform: rotate(-45deg);
}

.form-success-popup__icon {
    margin-bottom: 22px;
    color: #4caf50;
}

.form-success-popup__title {
    margin: 0 0 10px;
    padding-left: 0;
    color: #333;
    font-size: 28px;
    line-height: 1.2;
}

.form-success-popup__title::before {
    display: none;
}

.form-success-popup__text {
    margin: 0 0 28px;
    color: #555;
    font-size: 18px;
    line-height: 1.4;
}

.form-success-popup__button {
    width: auto;
    min-width: 160px;
    max-width: 100%;
    padding-right: 42px;
    padding-left: 42px;
}

body.form-success-popup-open {
    overflow: hidden;
}