body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background-color: #f5f5f5;
}

main {
  flex: 1 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 500px;
  /* Remove fixed min-width to prevent overflow on small screens */
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-header h2 {
  margin-bottom: 0.5rem;
  color: #1976d2;
  font-size: 2rem;
}

.login-header p {
  color: #666;
  margin: 0;
}

.input-field .prefix {
  color: #9e9e9e;
}

.input-field .prefix.active {
  color: #1976d2;
}

.btn-login {
  width: 100%;
  margin-top: 1rem;
}

.card-action a {
  color: #1976d2 !important;
}

/* Responsive adjustments */
@media only screen and (max-width: 600px) {
  .login-card {
    margin: 0 10px;
  }
  
  .login-header h2 {
    font-size: 1.8rem;
  }
  
  .card-content {
    padding: 20px 15px;
  }
  
  .input-field .prefix {
    width: 2rem;
  }
  
  .input-field input {
    width: calc(100% - 3rem) !important;
    margin-left: 3rem !important;
  }
  
  .card-action {
    padding: 15px;
  }
}

/* Very small screens */
@media only screen and (max-width: 350px) {
  .login-header h2 {
    font-size: 1.5rem;
  }
  
  .input-field .prefix {
    width: 1.5rem;
    font-size: 1.5rem;
  }
  
  .input-field input {
    width: calc(100% - 2rem) !important;
    margin-left: 2rem !important;
  }
}