@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.polar-credit-notification {
    position: fixed;
    bottom: 20px;
    left: 20px !important;
    background-color: #4CAF50;
    color: white;
    padding: 15px 20px;
    border-radius: 50px;
    z-index: 1000;
    display: none;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.polar-credit-notification.fade-in {
    display: flex;
    animation: fadeIn 0.5s forwards;
}

.polar-credit-notification.fade-out {
    animation: fadeOut 0.5s forwards;
}

.polar-credit-notification .close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    margin-left: 15px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}