/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f2f7fc;
    color: #222;
    padding: 0;
    margin: 0;
  }
  
  /* Header con logo y título */
  .main-header {
    background: linear-gradient(to right, #003366, #014283);
    color: white;
    padding: 1em 2em;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }
  
  .logo-container {
    display: flex;
    align-items: center;
    gap: 1em;
  }
  
  .logo {
    max-height: 60px;
  }

  .main-header .logo img {
    height: 50px;
  }
  
  .logo-container h1 {
    font-size: 1.5em;
    margin: 0;
  }
  
 
  
  /* Sección imagen */
  .hero-image {
    text-align: center;
    margin: 2em 0;
  }
  
  .hero-image img {
    max-width: 90%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  /* Reset básico */
  nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    background-color: #002f5a; /* azul oscuro */
  }
  
  nav ul li {
    position: relative;
  }
  
  nav ul li a {
    display: block;
    padding: 1em 1.5em;
    color: white;
    text-decoration: none;
  }
  
  /* Hover en menú principal */
  nav ul li:hover > a {
    background-color: #0090ff; /* azul claro */
  }
  
  /* Submenu oculto por defecto */
  nav .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #002f5a; /* mismo azul oscuro */
    min-width: 220px;
    border-radius: 0;
    box-shadow: none;
  }
  
  /* Mostrar submenu al hacer hover */
  nav .has-submenu:hover .submenu {
    display: block;
  }
  
  /* Estilo items submenu */
  nav .submenu li a {
    padding: 0.8em 1.5em;
    color: white;
    white-space: nowrap;
  }
  
  /* Hover en submenu items */
  nav .submenu li a:hover {
    background-color: #0090ff; /* azul claro */
  }
  
  
  nav .submenu li.active a {
    background-color: #eaf2fb;
    border-left: 4px solid #007bff;
    font-weight: bold;
  }
  /* Centrar el menú en la página */
nav {
  display: flex;
  justify-content: center;
  width: 100%;
  background-color: #002f5a;
  padding: 1em 0;
}

  .menu {
    position: relative;
    display: inline-block;
  }
  
  .menu-title {
    cursor: pointer;
    font-weight: 600;
    color: #003366;
    text-decoration: none;
    padding: 0.5em 1em;
    display: inline-block;
    transition: color 0.3s;
    background-color: transparent;
    border: none;
    font-size: 1.05em;
  }
  
  .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #ffffff;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    min-width: 220px;
    padding: 0.3em 0;
  }
  
  .menu:hover .submenu {
    display: block;
  }
  
  .submenu li {
    list-style: none;
  }
  
  .submenu li a {
    display: block;
    padding: 0.75em 1.2em;
    color: #003366;
    text-decoration: none;
    border-left: 4px solid transparent;
    transition: background-color 0.3s, border-left 0.3s;
    font-size: 1em;
  }
  
  .submenu li a:hover {
    background-color: #eaf2fb;
  }
  
  .submenu li.active a {
    background-color: #eaf2fb;
    border-left: 4px solid #007bff;
    font-weight: bold;
  }
  
  /* Contenido principal */
  .content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2em;
    padding: 2em;
    max-width: 1200px;
    margin: auto;
  }
  
  .card {
    background: white;
    padding: 1.5em;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  }
  
  .card h2 {
    color: #003366;
    margin-bottom: 1em;
  }
  
  .card ul {
    padding-left: 1.2em;
  }
  
  .card li {
    margin-bottom: 0.5em;
  }
  
 
  
  /* Footer */
  .main-footer {
    background-color: #003366;
    color: white;
    text-align: center;
    padding: 1.5em;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .logo-container h1 {
      font-size: 1.2em;
    }
  
    .navbar {
      padding: 0.5em;
    }
  }