:root {
    --azul: #1e90ff;
    --fondo: #0a0f1c;
    --texto: #f0f0f0;
    --gris: #c0c0c0;
    --card-fondo: #111;
    --sombra: rgba(0, 0, 0, 0.4);
    --fuente: 'Poppins', sans-serif;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    background-color: var(--fondo);
    color: var(--texto);
    font-family: var(--fuente);
    padding: 2rem;
  }
  /* Hero */
  .hero {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
  }
  .hero-content .logo-img img {
    display: none;
    width: 80px;
  }
  /* Nav */
  .nav {
    background-color: #10172a;
    position: relative;
  }

nav button img {
  border-radius: 8px;
}

  .menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
  }
  .menu-toggle img {
    width: 36px;
    height: 36px;
  }
  .nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 1rem;
    padding: 1rem;
  }
  .nav a {
    color: var(--texto);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
  }
  .nav a:hover {
    color: var(--azul);
  }
  /* Sección Artículos */
  .articulos-section {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
  }
  .titulo {
    font-size: 2rem;
    color: var(--azul);
    margin-bottom: 2rem;
    margin-top: 4rem;
  }
  /* Cards */
  .articles-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
  }
  .article-card {
    background-color: var(--card-fondo);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 10px var(--sombra);
    transition: transform 0.3s ease;
  }
  .article-card:hover {
    transform: translateY(-5px);
  }
  .article-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
  }
  .article-content {
    padding: 1rem;
  }
  .article-content h3 {
    color: var(--azul);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
  }
  .article-content p {
    font-size: 0.95rem;
    color: var(--gris);
    margin-bottom: 1rem;
    min-height: 3rem;
  }
  .article-content a {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    background-color: var(--azul);
    color: #fff;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease;
  }
  .article-content a:hover {
    background-color: #0077cc;
  }
  /* Botones finales */
  .botones-finales {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
  }
  .boton {
    background-color: var(--azul);
    color: #fff;
    padding: 0.7rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
  }
  .boton:hover {
    background-color: #0077cc;
  }
  /* Footer */
  .footer {
    text-align: center;
    padding: 2rem 1rem;
    background-color: #0d1224;
    color: var(--gris);
    margin-top: 3rem;
    font-size: 0.9rem;
  }
  .footer-links {
    margin-top: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
  }
  .footer-links a {
    color: var(--azul);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .footer-links img.icono-red {
    width: 20px;
    height: 20px;
  }
  /* Responsive */
  @media (max-width: 768px) {
    .menu-toggle {
      display: block;
    }
    .nav ul {
      display: none;
      flex-direction: column;
      background-color: #10172a;
      position: absolute;
      top: 60px;
      left: 0;
      width: 100%;
      z-index: 999;
    }
    .nav ul.show {
      display: flex;
    }
    .nav ul li {
      padding: 0.5rem 0;
      text-align: center;
    }
  }
  @media (min-width: 769px) {
    .menu-toggle {
      display: none;
    }
  }

  /* Estilos para que el logo en pantallas mayores a 768px se vea */
  @media (min-width: 769px) {
    .hero-content .logo-img img {
      display: block;
    }
  }

  /* Eliminar bullets de todas las listas */
  ul, ol {
    list-style: none;
  }