body{
  font-family: Arial, sans-serif;
  background:#0f172a;
  color:#e2e8f0;
  line-height:1.6;
  padding:20px;
  max-width:1000px;
  margin:auto;
   padding-top: 50px;   /* spazio per freccia e selettore */
}

h1,h2,h3{
  color:#38bdf8;
}

hr{
  border:0;
  border-top:1px solid #334155;
  margin:25px 0;
}

.card{
  background:#1e293b;
  padding:20px;
  border-radius:10px;
  margin-bottom:20px;
}

.green{ color:lime; }
.red{ color:red; }

ul{
  padding-left:20px;
}

strong{
  color:#facc15;
}

.install-box{
  background:#111827;
  padding:15px;
  border-radius:8px;
  margin-top:10px;
}

.footer{
  text-align:center;
  margin-top:40px;
  font-size:14px;
  opacity:0.7;
}

.language-switch {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}
select{
  background:#1e293b;
  color:#e2e8f0;
  border:1px solid #334155;
  padding:6px 10px;
  border-radius:6px;
}
.back-button {
  position: fixed;
  top: 20px;
  left: 20px;
  font-size: 26px;
  text-decoration: none;
  background-color: #00AEEF;
  color: white;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 12px;   /* ✅ quadrato smussato */
  
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: 0.2s ease;
  z-index: 1000;
}

.back-button:hover {
  background-color: #008ecf;
  transform: scale(1.08);
}
@media (max-width: 600px) {

  .back-button {
    top: 10px;
    left: 10px;
    width: 38px;
    height: 38px;
    font-size: 20px;
  }

  .language-switch {
    top: 10px;
    right: 10px;
  }

  select {
    padding: 4px 6px;
    font-size: 12px;
  }

  body {
    padding-top: 50px;
  }
}