.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.form-label {
    font-weight: bold;
}

.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.card {
    max-width: 850px;
}

.spinner-border {
    width: 4rem;
    height: 4rem;
}

.mr-70 {
    margin-right: 70px;
}

#cardHeader {
    background-color: darkgreen;
}

#cardHeader h2, h4 {
    color: whitesmoke;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(40, 167, 69, 0.7); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(40, 167, 69, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(40, 167, 69, 0); }
}

.pulse-animation {
    animation: pulse 2s infinite;
}