/* Corpo principale */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #0f111a;
  color: #e0e0e0;
  line-height: 1.8;
  padding: 2rem;
  max-width: 900px;
  margin: auto;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

/* Titoli verdi */
h1, h2, h3, h4, h5, h6 {
  color: green;
}

/* Stile specifico per h1-h3 */
h1 {
  font-size: 2.8rem;
  border-bottom: 3px solid #4CAF50;
  padding-bottom: 0.3rem;
  word-break: break-word;
}

h2 {
  font-size: 2rem;
  margin-top: 2rem;
}

h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
}

/* Card */
.card {
  background-color: #1a1c2b;
  border-left: 5px solid #4CAF50;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 2rem 0;
  box-shadow: 0 4px 15px rgba(76,175,80,0.2);
}

/* Link */
a {
  color: #4CAF50;
  text-decoration: none;
}

a:hover {
  color: #66bb6a;
  text-decoration: underline;
}

/* Separatore */
hr {
  border: none;
  height: 2px;
  background-color: #4CAF50;
  margin: 2rem 0;
}

/* Menu a discesa */
select {
  padding:0.5rem 1rem;
  border-radius:5px;
  font-size:1rem;
  background-color: #222236;
  color: #e0e0e0;
  border: 1px solid #4CAF50;
  margin-top:0.5rem;
  max-width:100%;
}

/* Navigazione top */
.topnav {
  display: flex;
  justify-content: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.topnav a {
  font-weight: bold;
}

.topnav a:hover {
  color: #66bb6a;
}

main, header, footer {
  width: 100%;
}

/* Footer */
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #4CAF50;
  text-align: center;
  font-size: 0.9rem;
  color: #999;
}

@media (max-width: 640px) {
  body {
    padding: 1rem;
    max-width: 100%;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.2rem;
  }

  .card {
    padding: 1rem;
    margin: 1rem 0;
  }
}