/* ==============================
   BASE GENERAL
   ============================== */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;

  /* footer fijo */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

/* Fondo estampado */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/utu.png'); 
  background-repeat: repeat;
  background-size: 10%; 
  background-position: center;
  background-attachment: fixed;
  opacity: 0.1; 
  z-index: -1; 
}

h1, h2, h3, h4 {
  margin: 0;
  padding-bottom: 10px;
}

ul { list-style: none; padding: 0; margin: 0; }
img { max-width: 100%; height: auto; }