* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    
}

header {
    text-align: center;
}

.branding h1{
    margin: 10px;
    color: #212529;
}

.branding img {
    width: 100px;
}

nav {
    background-color: #e9ecef;
    padding: 20px;
    text-align: center;
}

nav a {
    color: #212529;
    padding: 0 10px;
    text-decoration: none;
}


#hero {
    background-color: #f8f9fa;
    padding: 60px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    
}

 img {
    width: 95%;
    display: block;
    margin: 40px auto;
    border-radius: 5px;
}

article {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 30px;
    background-color: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  article h1 {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
  }
  
  article h2 {
    font-size: 24px;
    font-weight: bold;
    margin: 40px 0;
    color: #333;
  }
  
  article p {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #666;
    text-align: justify;
  }
  
  article ol, ul {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #666;
    padding-left: 20px;
  }
  
  article ol li {
    margin-bottom: 10px;
  }
  
  article ol li strong {
    font-weight: bold;
    display: block;
    margin-bottom: 5px;
  }

  .video_youtube {
    display: block;
    margin: 40px auto;
    border-radius: 10px;
    width: 75%;
    
  }

  .esquema_markmap {
    border: none;
    width: 100%;
    display: block;
    margin: 0 auto;
  }
  








/* Añade estas reglas al final del archivo style.css */

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: #e9ecef;
    display: flex;
    justify-content: space-around;
}

nav ul li {
    position: relative;
}

nav ul li a {
    display: block;
    padding: 15px 20px;
    color: #212529;
    text-decoration: none;
}

nav ul li:hover > a {
    background-color: #f8f9fa;
    border-radius: 5px;
}

nav ul li:hover .submenu {
    display: block;
}

.submenu {
    display: none;
    position: absolute;
    background-color: #f8f9fa;
    min-width: 150px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}

.submenu li {
    display: block;
}

.submenu li a {
    padding: 12px 16px;
}

.submenu li a:hover {
    background-color: #e9ecef;
    border-radius: 5px;
}


.tecnica-introduccion {
    width: 100%;
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    background-color: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    box-shadow: 0px 2px 5px rgba(0, 0, 0, 0.1);

  }
  
  .tecnica-introduccion h2 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
  }
  
  .tecnica-introduccion p {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #666;
    text-align: justify;
  }
  
  .tecnica-introduccion ul, ol {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 15px;
    color: #666;
    padding-left: 20px;
  }
  
  .tecnica-introduccion a.boton {
    display: block;
    width: fit-content;
    margin: 40px auto;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background-color: #333;
    border: none;
    border-radius: 3px;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }
  
  .tecnica-introduccion a.boton:hover {
    background-color: #555;
  }
  



footer {
    background-color: #f8f9fa;
    padding: 20px;
    text-align: center;
}