.gk-lead-success-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483600;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(16, 42, 42, 0.76);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.gk-lead-success-card {
    width: min(780px, 100%);
    padding: 43px 36px 44px;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
    color: #182521;
    text-align: center;
}

.gk-lead-success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 14px;
    border-radius: 50%;
    background: #188653;
    color: #ffffff;
    font-family: Arial, sans-serif;
    font-size: 45px;
    font-weight: 400;
    line-height: 1;
}

.gk-lead-success-card h2 {
    margin: 0 0 10px;
    color: #182521;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(30px, 4vw, 38px);
    font-weight: 400;
    line-height: 1.15;
}

.gk-lead-success-card p {
    max-width: 520px;
    margin: 0 auto 27px;
    color: #6c7775;
    font-family: Arial, sans-serif;
    font-size: 17px;
    line-height: 1.55;
}

.gk-lead-success-close {
    min-width: 114px;
    min-height: 48px;
    padding: 12px 22px;
    border: 0;
    border-radius: 8px;
    background: #ffbd00;
    color: #000000;
    font-family: Arial, sans-serif;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    transition:
        background-color 0.2s ease,
        transform 0.2s ease;
}

.gk-lead-success-close:hover {
    background: #eeb000;
    transform: translateY(-1px);
}

.gk-lead-success-close:focus-visible {
    outline: 3px solid rgba(255, 189, 0, 0.45);
    outline-offset: 3px;
}

@media (max-width: 640px) {
    .gk-lead-success-overlay {
        padding: 16px;
    }

    .gk-lead-success-card {
        padding: 34px 22px 36px;
        border-radius: 14px;
    }

    .gk-lead-success-card p {
        font-size: 16px;
    }
}