/* Modal de bienvenue — overlay + popup */
.overlay-popup {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9000;
}

#welcomePopup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9001;
    background: var(--background-color);
    border: var(--border);
    border-radius: var(--border-radius);
    padding: 20px;
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
}