.rp-form-success-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.rp-form-success-modal {
    position: relative;
    background: #fff;
    border-radius: 16px;
    padding: 32px 28px;
    max-width: 420px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
}

.rp-form-success-close {
    position: absolute;
    top: 12px;
    right: 14px;
    border: 0;
    background: none;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #999;
}

.rp-form-success-title {
    margin: 0 0 12px;
    font-size: 22px;
}

.rp-form-success-text {
    margin: 0 0 24px;
    color: #555;
}

.rp-form-success-btn {
    border: 0;
    background: #111;
    color: #fff;
    padding: 12px 28px;
    border-radius: 8px;
    cursor: pointer;
}