* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: #f2f2f2;
  color: #333;
  padding: 20px;
}


header {
  background-color: #4CAF50;
  color: white;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  font-size: 1.5rem;
}


nav ul {
  list-style: none;
  display: flex;
  gap: 15px;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 5px 10px;
}

nav a.active,
nav a:hover {
  background-color: #45a049;
  border-radius: 4px;
}


main {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 20px ;
  align-items: flex-start;   
}

main section {
  width: 70%;   
  background-color: white;
  padding: 20px;
  border-radius: 5px;
}

main aside {
  
  width: 30%;   
  background-color: #e0e0e0;
  padding: 20px;
  border-radius: 5px;
}


section .seccio {
  background-color: #f9f9f9;
  padding: 20px;
  margin-bottom: 20px;
  border-left: 4px solid #4CAF50;
  border-radius: 4px;
}


.titol-principal {
  font-size: 1.8rem;
  color: #ffffff;
}

.subtitol {
  font-size: 1.4rem;
  color: #1e3d59;
  margin-bottom: 10px;
}

.subtitol-menor {
  font-size: 1.1rem;
  color: #3e5c76;
  margin-top: 15px;
  margin-bottom: 5px;
}


.llista {
  list-style-type: disc;
  padding-left: 20px;
}

.llista li {
  margin-bottom: 8px;
}


.paragraf {
  font-size: 1rem;
}


footer {
  text-align: center;
  padding: 15px;
  background-color: #333;
  color: white;
  border-radius: 5px;
  margin-top: 20px;
}


.portfolio-frame {
  display: block;
  margin: 0 auto;
  width: 800px;
  height: 1000px;
  border: none;
}


@media (max-width: 768px) {
  main {
    flex-direction: column;
  }

  main section,
  main aside {
    width: 100%;   
  }
}


.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px;
  z-index: 100;
}
.skip-link:focus {
  top: 0;
}


iframe {

  display: block;
  margin: 0 auto;
  width: 800px;
  height: 1000px;
  border: none;


}


nav ul li {
  position: relative; /* necessari per al submenu */
}

nav ul li .dropdown-content {
  display: none;
  position: absolute;
  top: 100%; /* just sota el menú pare */
  left: 0;
  background-color: #4CAF50;
  min-width: 200px;
  border-radius: 4px;
  z-index: 1000;
  flex-direction: column;
}

nav ul li .dropdown-content li {
  display: block;
}

nav ul li .dropdown-content a {
  padding: 10px 15px;
  display: block;
  color: white;
  text-decoration: none;
}

nav ul li .dropdown-content a:hover {
  background-color: #45a049;
}

/* Mostra el submenu al passar el ratolí */
nav ul li.dropdown:hover .dropdown-content {
  display: flex;
  flex-direction: column;
}



.fototenda {
margin-top: 50px;
}

.tawlogo { 
	font-family: arial, sans-serif; 
	border: 1px solid #555; 
	vertical-align: 0.3em;
	font-weight: bold;
	color: #fff;
	font-size: 0.9em; 
	background-color: #555;
	padding: 0;
}

.tawlogo .tnivel {
	padding: 0 0.4em ;
	border-bottom: 0px;
	background-color: #555;
	color: #fff;
	font-size: 0.8em;
}

.tawlogo abbr {
	border-bottom: 0px;
}

.tawlogo acronym{
	border-bottom: 0px;
	padding: 0 0.3em;
	background-color: #fff;
	color: #000; 
}

.tawlogo sup{
	padding: 0em;
	vertical-align: 0.6em;
	font-size: 0.6em;
}

.tawlogo { 
	font-family: arial, sans-serif; 
	border: 1px solid #555; 
	vertical-align: 0.3em;
	font-weight: bold;
	color: #fff;
	font-size: 0.9em; 
	background-color: #555;
	padding: 0;
}

.tawlogo .tnivel {
	padding: 0 0.4em ;
	border-bottom: 0px;
	background-color: #555;
	color: #fff;
	font-size: 0.8em;
}

.tawlogo abbr {
	border-bottom: 0px;
}

.tawlogo acronym{
	border-bottom: 0px;
	padding: 0 0.3em;
	background-color: #fff;
	color: #000; 
}

.tawlogo sup{
	padding: 0em;
	vertical-align: 0.6em;
	font-size: 0.6em;
}