#introduccion {
    max-width: 900px;
    margin: 3rem auto;
    padding: 0 1rem;
    font-family: 'Arial', sans-serif;
    color: #222;
}

h1 {
  font-size: 3rem;
  color: #003b6f;
  text-align: center;
  margin: 0px 0 50px;
  font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  letter-spacing: 1.5px;
  position: relative;
}

h1::after {
  content: '';
  display: block;
  width: 70px;
  height: 4px;
  background-color: #0077b6;
  margin: 10px auto 0;
  border-radius: 2px;
}

.video-container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto 2rem;
    aspect-ratio: 16 / 9;
    background: black; /* para el espacio vacío */
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain; /* evita recorte */
}

.texto-introduccion p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.contenedor{
      background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  width: 100%;
}


/* Responsive */
@media (max-width: 600px) {
    #introduccion h1 {
        font-size: 1.8rem;
    }

    .video-container {
        height: 40vh;
    }

    .texto-introduccion p {
        font-size: 1rem;
    }
}