.mapa-container {
    width: 100%;
    max-width: 900px;
    height: 500px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    background-color: white;
}

iframe.mapa {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}