*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
}

body{
  background:#f5f5f5;
  color:#333;
}

header{
  background:#2f6b2f;
}

nav ul{
  list-style:none;
  display:flex;
  justify-content:space-around;
  padding:15px;
}

nav ul li a{
  color:#fff;
  text-decoration:none;
  font-weight:bold;
}

nav ul li a:hover{
  text-decoration:underline;
}

/* ===== DISEÑO TAMAÑO GRANDE (por defecto, >1280px) ===== */
.container{
  max-width:1200px;
  margin:60px auto;
  padding:40px 20px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  background:#fff;
}

.container h2{
  margin-bottom:30px;
}

.container img{
  width:90%;
  height:auto;
}

.footer{
  background:#2f6b2f;
  color:#fff;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  padding:20px;
  margin-top:90px;
}

.footer a{
  color:#fff;
  text-decoration:none;
}

.social-icons{
  display: flex;
  justify-content: flex-start;
  margin-top: 10px;
}

.social-icons a{
  font-size: 28px;      
  margin-right: 40px;  
  color: #fff;
}

.social-icons a:last-child{
  margin-right: 0;
}

.precio{
  font-weight: bold;
}

.product{
  border:1px solid #ccc;
  padding:15px;
  text-align:center;
}

.product h3{
  margin-bottom:10px;
  color:#2f6b2f;
}

/* ===== Media Queries ===== */

/* Mediano */
@media (max-width: 900px){
  .container{
    grid-template-columns:repeat(2,1fr); 
  }
  .footer{
    grid-template-columns:repeat(2,1fr);
  }
}

/* Pequeño */
@media (max-width: 600px){
  nav ul{
    flex-direction:column;
    align-items:center;
  }
  .container{
    grid-template-columns:1fr;
  }
  .footer{
    grid-template-columns:1fr;
    text-align:center;
  }
}