.upgrade-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

.upgrade-modal.show {
    display: flex;
}

.upgrade-modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.upgrade-modal h3 {
    margin-top: 0;
    color: #333;
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: bold;
}

.upgrade-modal p {
    color: #000;
    margin: 20px 0;
    line-height: 1.5;
    font-size: 16px;
}

.upgrade-modal-buttons {
    margin-top: 25px;
}

.upgrade-modal-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin: 0 5px;
    transition: all 0.3s ease;
    font-weight: bold;
}

.upgrade-modal-btn.primary {
    background: #d35561;
    color: white;
}

.upgrade-modal-btn.primary:hover {
    background: #d35561;
}

.upgrade-modal-btn.secondary {
    background: #f1f1f1;
    color: #333;
}

.upgrade-modal-btn.secondary:hover {
    background: #e0e0e0;
}