#section-principal {
    position: relative;
    width: 100%;
    padding: 2rem 0;
}

#banner-1 {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--sombra-xl);
    position: relative;
}

#banner-1 img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

#banner-1:hover img {
    transform: scale(1.02);
}

#banner-1::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.4) 100%);
    pointer-events: none;
}

#banner-2 {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

#banner-2 h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--azul-oscuro);
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

#banner-2 h2::before {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--verde-corporativo);
    border-radius: 2px;
    margin-bottom: 1rem;
}

#banner-2 > a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--verde-corporativo);
    color: var(--blanco);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(114, 190, 68, 0.3);
}

#banner-2 > a:hover {
    background: var(--verde-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(114, 190, 68, 0.4);
}

#banner-2 > a::after {
    content: '→';
    transition: transform 0.3s ease;
}

#banner-2 > a:hover::after {
    transform: translateX(5px);
}

#figure-contenedor-2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

#figure-contenedor-2 img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: var(--sombra-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#figure-contenedor-2 img:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--sombra-xl);
}

#section-paginas {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1400px;
    margin: 3rem auto;
    padding: 0 2rem;
}

#panel-noticias {
    background: var(--blanco);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--sombra-lg);
    transition: var(--transicion);
}

#panel-noticias:hover {
    box-shadow: var(--sombra-xl);
    transform: translateY(-4px);
}

#panel-noticias iframe {
    width: 100%;
    height: 450px;
    border-radius: 12px;
    border: none;
}

#contenedor-youtube {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.video-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--sombra-lg);
    background: var(--gris-900);
}

.video-container lite-youtube {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-container lite-youtube::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.video-container:hover {
    box-shadow: var(--sombra-xl);
    transform: translateY(-4px);
}

@media (max-width: 1024px) {
    #banner-1 img {
        height: 400px;
    }

    #banner-2 {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    #banner-2 h2 {
        font-size: 1.5rem;
    }

    #figure-contenedor-2 {
        grid-template-columns: repeat(3, 1fr);
    }

    #figure-contenedor-2 img {
        height: 180px;
    }

    #section-paginas {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #banner-1 img {
        height: 300px;
    }

    #banner-2 {
        padding: 0 1rem;
    }

    #banner-2 h2 {
        font-size: 1.25rem;
    }

    #figure-contenedor-2 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    #figure-contenedor-2 img {
        height: 200px;
    }

    #panel-noticias iframe {
        height: 300px;
    }
}

@media (max-width: 480px) {
    #banner-1 img {
        height: 220px;
    }

    #banner-1 {
        border-radius: 12px;
    }

    #banner-2 > a {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
}