body {
  padding-top: 0px;
  margin: 0;
  font-family: 'Lexend', sans-serif;
}
.navbar {
  position: fixed;  
  top: 0;
  left: 0;
  width: 100%;
  background: #6587d09e;
  padding: 10px 0;
  z-index: 10;            
  backdrop-filter: blur(5px); 
  display: flex;
  justify-content: center;
  align-items: center;
}
.navbar-menu {
  list-style: none;
  display: flex;
  gap: 40px;
  margin: 0;
  padding: 0;
}
.navbar-brand {
  position:absolute;
  left:20px;
  font-family: 'Lexend', sans-serif;
  font-size: 1.3rem;
  font-weight: normal;
  text-decoration: none;
  color: #333;
}
.navbar a {
  text-decoration: none;
  color: #dce5f5;
  font-size: clamp(1rem, 2vw, 2em);
  font-weight: normal;
  transition: color 0.3s ease;
}
.navbar a:hover {
  color: #ffffff;
}
.navbar a.active {
  border-bottom: 2px solid #ffffff;
  position: relative;
  font-weight: normal;
  color: #ffffff;
  transition: all 0.3s ease;
}
.navbar a.active:hover {
  border-bottom-color: #ecf0f7;
}
.login-button {
  position:absolute; 
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: #a7bfe9;
  padding: 6px 12px;
  font-size: clamp(0.9rem, 1.5vw, 1.2em) !important;
  border-radius: 6px;
  font-weight: normal;
  text-shadow: 0 0 4px #142976;
  transition: all 0.3s ease;
}
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;   
    align-items: center;
    height: auto;             
    padding: 6px 0;
  }
  .navbar-menu {
    flex-direction: column;   
    gap: 5px;
    align-items: center;
  }
  .logout-button {
    position: static;        
    transform: none;
    font-size: clamp(0.9rem, 2vw, 0.9em);        
  }
  .logrin-button {
    position: static;
    transform: none;
    font-size: clamp(0.9rem, 2vw, 0.9em);
  }
}
@media (max-width: 480px) {
  .navbar a {
    font-size: clamp(0.8rem, 3vw, 1.5em);
  }
  .logout-button {
    font-size: clamp(0.7rem, 2.5vw, 1em);
    padding: 5px 10px;
  }
  .login-button {
    font-size: clamp(0.7rem, 2.5vw, 1em);
    padding: 5px 10px;
  }
}
.flash-message {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #28a745;
  color: #fff;
  padding: 15px 25px;
  border-radius: 8px;
  font-weight: normal;
  text-align: center;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  min-width: 300px;
  max-width: 90%;
}
.flash-message.fade-out {
  animation: fadeOut 0.5s ease-in-out forwards;
  animation-delay: 3s;
}
@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateX(-50%) translateY(-20px); }
}
.flash-message.error {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #dc3545;
  color: #fff;
  padding: 15px 25px;
  border-radius: 8px;
  font-weight: normal;
  text-align: center;
  z-index: 1000;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  min-width: 300px;
  max-width: 90%;
}
.flash-message.error.fade-out {
  animation: fadeOut 0.5s ease-in-out forwards;
  animation-delay: 3s;
}
.footer-container {
  width: 90%;
  color: #ffffff;
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
  text-align: center;
  justify-self: center;
  display: flex;
  justify-content: space-between;
  padding: 20px 10px;
  flex-wrap: wrap;
}
.footer-column {
  flex: 1 1 200px; /* larghezza minima di 200px, cresce se possibile */
}
.footer-column h4 {
  font-size: clamp(1.2rem, 1vw, 1.2rem);
}
.footer-column ul {
  list-style: none;
  padding: 0;
}
.footer-column ul li {
  margin-bottom: 10px;
}
.footer-column a {
  color: white;
  text-decoration: none;
  transition: color 0.3s;
}
.footer-column a:hover {
  color: #ffffff;
  text-decoration: underline;
}
.back-bar {
  margin-top: 20px;
  text-align: center;
}
.back-bar a {
  color: white;
  font-weight: normal;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.back-bar a:hover {
  color: #ffffff;
}
@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-column {
    margin-bottom: 20px;
  }
  .back-bar {
    margin-top: 10px;
  }
}
@media (max-width: 480px) {
  .footer-container {
    padding: 20px 10px;
  }
  .footer-column h4 {
    font-size: 16px;
  }
  .footer-column ul li {
    margin-bottom: 8px;
  }
  .back-bar a {
    font-size: 14px;
    gap: 5px;
  }
}