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

.session-warning-modal {
    background: white;
    padding: 20px 30px;
    border-radius: 8px;
    text-align: center;
    width: 300px;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

    .session-warning-modal button {
        margin: 8px;
        padding: 10px 16px;
        cursor: pointer;
    }