/* ==========================================================================
   1. Variables y Estilos Base
   ========================================================================== */
   :root {
    --color-primary: #122E5D;
    --color-secondary: #FD5902;
    --color-text: #333;
    --color-light: #fff;
    --color-background: #f5f5f5;
    --color-border: #ccc;
    --font-main: "Quicksand", sans-serif;
  }
  
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: var(--font-main);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
  }
  
  img {
    max-width: 100%;
    display: block;
  }
  
  /* ==========================================================================
     2. Header y Navegación
     ========================================================================== */
  header {
    background-color: var(--color-primary);
    color: var(--color-light);
    padding: 1.25rem 1.5rem;
    text-align: center;
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
  }
  
  header .logo {
    width: 6.25rem; /* 100px */
    height: auto;
    margin: 0 auto 0.625rem;
  }
  
  header h1 {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
    letter-spacing: 0.125rem;
  }
  
  nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.25rem;
  }
  
  nav ul li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background: var(--color-primary);
    color: var(--color-light);
    border-radius: 0.3125rem;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    transition: background 0.3s ease;
  }
  
  nav ul li a:hover {
    background: var(--color-secondary);
  }
  
  /* ==========================================================================
     3. Contenido Principal y Tarjetas Educativas
     ========================================================================== */
  main {
    padding: 2.5rem 1.5rem; /* Espaciado general */
  }
  
  .educacion-section {
    max-width: 75rem; /* 1200px */
    margin: 0 auto;
    padding: 2.5rem;
    text-align: center;
    background-color: var(--color-light);
    border-radius: 1rem;
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.1);
  }
  
  .educacion-section h1 {
    color: var(--color-primary);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--color-secondary);
    display: inline-block;
  }
  
  .educacion-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
  }
  
  .flip-card {
    background-color: transparent;
    perspective: 1000px;
    flex-shrink: 0;
    width: 21.875rem; /* 350px */
    height: 32.5rem;  /* 520px */
    transition: transform 0.4s ease, box-shadow 0.4s ease; /* Transición para el movimiento */
  }
  
  .flip-card:hover {
    transform: translateY(-10px); /* Mueve la tarjeta hacia arriba */
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2); /* Sombra más pronunciada */
  }
  
  .flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s ease;
    transform-style: preserve-3d;
  }
  
  .flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
  }
  
  .flip-card-front,
  .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 0.25rem 1rem rgba(0, 0, 0, 0.1);
    background-color: var(--color-light);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  
  .flip-card-back {
    transform: rotateY(180deg);
    background-color: var(--color-primary);
    color: var(--color-light);
  }
  
  .flip-card img {
    max-width: 12.5rem; /* 200px */
    max-height: 15rem;
    object-fit: contain;
    margin-bottom: 1rem;
  }
  
  .flip-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
  }
  
  .flip-card-back h3 {
    color: var(--color-light);
  }
  
  .flip-card p {
    font-size: 1rem;
  }
  
  .flip-card ul {
    padding-left: 1.25rem;
    text-align: left;
    font-size: 0.95rem;
    width: 100%;
  }
  
  /* ==========================================================================
     4. Footer
     ========================================================================== */
  footer {
    text-align: center;
    padding: 1.25rem;
    background: var(--color-primary);
    color: var(--color-light);
    font-size: 1rem;
    margin-top: 2.5rem;
  }
  
  /* ==========================================================================
     5. Media Queries (Ajustes finos)
     ========================================================================== */
  @media (max-width: 480px) {
    main {
      padding: 2rem 1rem;
    }
  }