body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 95vh;
    background: #0b0a14;
    font-family: 'Orbitron', sans-serif;
    overflow: hidden;
}

.contenedor {
    text-align: center;
}

#titulo {
    color: #fff;
    font-size: 3rem;
    text-shadow: 0 0 10px rgb(18, 189, 189), 0 0 20px #0077ff, 0 0 30px #00f7ff;
    margin-bottom: 20px;
}

canvas {
    border: 3px solid #fff;
    border-radius: 15px;
    box-shadow: 0 0 20px #0ff, 0 0 40px #0077ff;
    background: rgba(0, 0, 0, 0.6);
    width: 100%;
    height: auto;
    max-width: 800px;
    display: block;
    margin: auto;
}

#bienvenida {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#bienvenida-contenido {
    background: linear-gradient(135deg, #1a1a1a, #222222);
    border: 3px solid #2ddafc;
    border-radius: 20px;
    padding: 40px 60px;
    text-align: center;
    color: white;
    font-family: 'Arial', sans-serif;
    box-shadow: 0 0 25px #2ddafc;
}

#bienvenida-contenido h1 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #ffcc00;
    text-shadow: 2px 2px #2ddafc;
}

#bienvenida-contenido p {
    font-size: 20px;
    margin-bottom: 30px;
}

#bienvenida-contenido h5 {
    font-size: 16px;
    margin-top: 20px;
    color: #aaa;
}

#bienvenida-contenido h6 {
    font-size: 20px;
    margin-top: -10px;
    margin-bottom: 20px;
    color: #1b78f1;
}

#bienvenida-contenido h7 {
    font-size: 16px;
    margin-top: -10px;
    margin-bottom: 20px;
    color: #aaa;
}


#btn-empezar {
    padding: 12px 30px;
    font-size: 20px;
    background-color: #2ddafc;
    color: black;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
    transition: transform 0.2s, box-shadow 0.2s;
}

#btn-empezar:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px #2ddafc;
}