* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: "Montserrat", sans-serif;
    /* background-color: #171D40; */
  }

  .layout{
    display: block;
  }
  
  /* Estilos del menú lateral */
  header {
    width: 280px;
    height: 100vh;
    background-color: #161616;
    position: fixed;
    top: 0;
    left: -280px;
    transition: left 0.3s ease;
    z-index: 1000;
    padding: 3rem 1rem;
  }
  
  header.show {
    left: 0;
  }
  
  header img {
    width: 50%;
    height: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 3px solid #fff;
  }
  .perfil{
margin-bottom: 0 !important;
  }

  header h2 {
    font-size: 1.8rem;
    color: white;
  }
  /* iconos de redes sociales */
  .icons{
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
  }
  .icons a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s ease;
    padding: 0.5rem;
    border-radius: 100%;
    background-color: #373737;

  }
  /* Estilo de navegación */
  nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  nav a {
    color: white;
    text-decoration: none;
    font-size: 1.1rem;
  }
  
  /* Botón hamburguesa */
  .hamburger {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    background: none;
    border: none;
    z-index: 1100;
    cursor: pointer;
    color: #0d0d0d;
  }
  
  /* Mostrar solo en móviles */
  @media (max-width: 768px) {
    .hamburger {
      display: block;
    }
  
    header {
      display: block;
    }
  }
  
  /* En pantallas grandes se oculta el header lateral */
  @media (min-width: 769px) {
    .layout {
      display: flex;
      flex-direction: row;
    }
    main {
      flex: 1;
      padding: 2rem;
      margin-left: 280px; /* Espacio para el menú lateral */    

    }
  }

  /* @media (min-width: )
   */

   .hero-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100vh;
    padding: 2rem;
   }
    .presentation-heading {
      position: relative;
    }
  .presentation-heading h1{
    font-size: 2rem;
    margin-bottom: 1rem;
   }
   .rectangle{
    background-color: #0d6efd;
    position: absolute;
    bottom: 0;
    width: 130px;
    height: 8px;
    border-radius: 8px; 
   }
.presentation-description p {
    font-size: 1.2rem;
    color: #333;
    margin-bottom: 1rem;
   }
   /* Boton de descarga del CV */
   .btn-hover {
    width: 50%;
    background-color: #0d6efd;
    color: white;
    list-style: none;
    text-decoration: none;
    text-align: center;
    padding: 12px 24px; 
    border: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
  }
  
  .btn-hover:hover {
    background-color: #0056b3; /* Azul más oscuro */
    transform: scale(1.05); /* Ligero aumento */
    color: #fff;
  }
  .btn-hover:active {
    transform: scale(0.95); /* Ligero disminución al hacer clic */
  }