.pagina-interna {
    padding: 4rem 0;
    min-height: 60vh;
}

.titulo-pagina {
    font-size: 3rem;
    margin-bottom: 3rem;
    color: var(--color-primary);
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.titulo-pagina::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.contenedor {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}


.seccion-intercambio {
    margin-bottom: 4rem;
}

.seccion-intercambio h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: var(--color-primary);
}

.intercambio-contenido {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intercambio-texto p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    text-align: justify;
}

.intercambio-imagen img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-hover);
}


.seccion-niveles {
    margin-bottom: 4rem;
    padding: 3rem 0;
    background-color: var(--color-light);
    border-radius: 10px;
}

.seccion-niveles h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: var(--color-primary);
    text-align: center;
}

.niveles-contenido > p:first-of-type {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    padding: 0 2rem;
}

.niveles-contenido > p:last-of-type {
    text-align: center;
    margin-top: 2rem;
    font-size: 1.1rem;
    padding: 0 2rem;
}

.niveles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.nivel-item {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border: 2px solid var(--color-border);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.nivel-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.nivel-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary);
}

.nivel-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.nivel-item p {
    color: #666;
    line-height: 1.6;
}


.seccion-reglas {
    margin-bottom: 4rem;
}

.seccion-reglas h2 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: var(--color-primary);
}

.reglas-contenido {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.reglas-contenido h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--color-primary);
}

.reglas-contenido h3:first-child {
    margin-top: 0;
}

.reglas-contenido ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.reglas-contenido li {
    margin: 0.8rem 0;
    line-height: 1.8;
    color: #666;
}

.reglas-contenido p {
    margin: 1.5rem 0;
    line-height: 1.8;
    color: #666;
}


.seccion-involucramiento {
    margin-bottom: 4rem;
    padding: 3rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 10px;
    text-align: center;
    color: var(--color-white);
}

.seccion-involucramiento h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.involucramiento-contenido p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.95;
}

.btn-registro-grande {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 1.2rem 3rem;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    margin-top: 1rem;
}

.btn-registro-grande:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}


.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}


@media (max-width: 768px) {
    .titulo-pagina {
        font-size: 2rem;
    }
    
    .intercambio-contenido {
        grid-template-columns: 1fr;
    }
    
    .niveles-grid {
        grid-template-columns: 1fr;
    }
    
    .seccion-niveles {
        padding: 2rem 1rem;
    }
    
    .reglas-contenido {
        padding: 1.5rem;
    }
    
    .seccion-involucramiento {
        padding: 2rem 1.5rem;
    }
    
    .niveles-contenido > p:first-of-type,
    .niveles-contenido > p:last-of-type {
        padding: 0;
    }
}