.tlt-vocab {
    text-align: center;
    color: #0056b3;
    font-size: 2.2rem;
    margin: 2rem 0;
    font-weight: 700;
}

.numeros-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.numero-tarjeta {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    text-align: center;
}

.numero-tarjeta h3 {
    font-size: 2.2rem;
    color: #0056b3;
    margin-bottom: 1rem;
    font-weight: 700;
}

.numero-tarjeta video,
.numero-tarjeta img {
    width: 100%;
    max-width: 220px;
    height: auto;
    border-radius: 10px;
    margin: 0 auto 1rem;
    display: block;
    background: #f8fbff;
    object-fit: contain;
}

.numero-tarjeta p {
    font-size: 1rem;
    line-height: 1.6;
    color: #333;
    margin: 1rem 0;
    text-align: justify;
}

.numero-tarjeta audio {
    width: 100%;
    margin: 0.8rem 0;
}

.boton-reproducir {
    background: #0056b3;
    color: white;
    border: none;
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
}

.boton-reproducir:hover {
    background: #003d82;
}

/* Responsive */
@media (max-width: 900px) {
    .numeros-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .numeros-grid {
        grid-template-columns: 1fr;
        padding: 0 15px;
    }

    .tlt-vocab {
        font-size: 1.8rem;
    }

    .numero-tarjeta h3 {
        font-size: 2rem;
    }
}