body, html {
    margin: 0;
    padding: 0;
    font-family: 'Baloo 2', 'Comic Neue', sans-serif;
    height: 100%;
    overflow: hidden;
}

.fondo {
    position: relative;
    width: 100%;
    height: 100vh;
    background: linear-gradient(to bottom, #0b1a3d, #000033);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    color: white;
}

.contenedor {
    text-align: center;
    z-index: 1;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 40px;
}

.botones {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.boton {
    padding: 15px 25px;
    background: #00bfff;
    color: white;
    border-radius: 10px;
    text-decoration: none;
    font-size: 1.2rem;
    box-shadow: 0 5px 10px rgba(0,0,0,0.3);
    transition: transform 0.3s, box-shadow 0.3s;
}

.boton:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0,0,0,0.5);
}

/* canvas ocupa todo el fondo */
#stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}