.modalpublicidad {
    display: none; /* oculto inicialmente */
    justify-content: center;
    align-items: center;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.6);
    padding: 10px;
}

.modalpublicidad-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    width: 100%;
    max-width: 420px;
    max-height: 720px;
    text-align: center;
    position: relative;
    overflow-y: auto;
    box-sizing: border-box;
}


.closepublicidad {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 45px;
    font-weight: bold;
    color: #050b57;
    cursor: pointer;
    background: #a2d45e;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    line-height: 35px;
    text-align: center;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
    transition: background 0.3s, color 0.3s;
}

.closepublicidad:hover {
    background: #ff4d4d;
    color: white;
}

.modalpublicidad-content img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}