* { box-sizing: border-box; }

body { 
    margin: 0; 
    font-family: Arial, sans-serif; 
    background: #f5f5f5; }


header {
  background: #0077cc;
  color: #fff;
  padding: 1rem;
  text-align: center;
}


.grid {
  display: grid;
  grid-template-columns: 1fr 1fr; 
  gap: 1rem;
  max-width: 100px;
  margin: 0 auto;
  padding: 1rem;
}


figure {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 0.5rem;
  margin: 0;
}

img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

figcaption {
  margin-top: 0.5rem;
  font-weight: bold;
  text-align: center;
}

/* Navegación */
.desplazamiento_entre_paginas { margin: 1rem; }

.boton {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  margin: 0.5rem;
  background: #0077cc;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.2s ease;
}

.boton:hover { background: #005fa3; }


@media (max-width: 500px) {
  .grid {
    grid-template-columns: 1fr;
  }

  header h1, header h2 {
    font-size: 1.2rem;
  }

  .boton {
    display: block;
    width: 100%;
    margin: 0.5rem 0;
  }
}