body {
  background-color: #4589ff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0;
}

/* Header */
.signUpHeader {
  display: flex;
  justify-content: start;
  padding: 20px;
  padding-top: 67px;
  padding-left: 58px;
  position: absolute;
  top: 0;
  left: 0;
}

.JoinLogoHeaderFrame {
  display: flex;
  padding-left: 20px;
}

.headerJoinLogo {
  width: 100.03px;
  height: 121.97px;
}

/* signup */
.signUpContainer {
  display: flex;
  justify-content: center;
  align-items: center;
}

.signUpBox {
  background-color: white;
  padding: 40px;
  border-radius: 20px;
  text-align: center;
  width: 400px;
  position: relative;
}

.back-arrow {
  position: absolute;
  top: 84px;
  left: 20px;
  text-decoration: none;
}

.back-arrow img {
  width: 24px;
  height: 24px;
}

h2 {
  font-family: "Open-Sans", sans-serif;
  font-size: 48px;
  font-weight: 700;
  margin-top: 20px;
  margin-bottom: 20px;
}

.inputSignUp {
  position: relative;
  margin-bottom: 20px;
}

.inputSignUp input {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  border: none;
  border-bottom: 1px solid lightgray;
  padding-right: 40px;
  box-sizing: border-box;
}

.inputSignUp img.input-icon {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  height: 24px;
  width: 24px;
}

.checkboxAccept {
  display: flex;
  align-items: center;
  margin-top: 10px;
  gap: 12px;
}

.checkboxAccept input {
  margin-right: 10px;
}

.linkPrivacy {
  color: #4589ff;
  text-decoration: none;
}

.linkPrivacy:hover {
  text-decoration: underline;
}

/* Submit button */
.login-btn {
  background-color: #4589ff;
  color: white;
  border: none;
  padding: 12px;
  font-size: 16px;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 20px;
}

.login-btn:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

.login-btn:hover:enabled {
  background-color: #005dff;
}

/* Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.63); /* transparenter Hintergrund */
  z-index: 999;
}

.popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color:#4589FF;
  padding: 20px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  opacity: 0;
  animation: slideUp 0.6s ease-out forwards;
}

.popup img {
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
}

.popup p {
  font-size: 23px;
  font-weight: 400;
  color: #ffffff;
}

.hidden {
  display: none;
}

/* animation of popup */
@keyframes slideUp {
  0% {
      top: 80%;
      opacity: 0;
  }
  100% {
      top: 50%;
      opacity: 1;
  }
}


:root{
  --form-val-wrong:#FF3D00;
  --form-val-default:#D1D1D1;
}

.error-message{
  display:none;
  color:var(--form-val-wrong);
  font-size:12px;
  margin:6px 0 10px;
}

.inputSignUp input{
  width:100%;
  border:none;
  border-bottom:1px solid var(--form-val-default);
  outline:none;
  background:transparent;
  padding:12px 36px 12px 12px;
}

.inputSignUp input.invalid{
  border-bottom:1px solid var(--form-val-wrong);
}



@media (max-width: 600px) {
  .signUpHeader {
    display: none;
    padding-top: 30px;
    padding-left: 30px;
  }

  .JoinLogoHeaderFrame {
    padding-left: 10px; 
  }

  .headerJoinLogo {
    width: 90px;
    height: auto; 
  }

  .signUpBox {
    width: 95%; 
    padding: 25px; 
    border-radius: 15px; 
  }

  .back-arrow {
    position: absolute;
    top: 20px; 
    left: 20px;
    width: 30px; 
    height: 30px; 
  }

  h2 {
    font-size: 40px;
    margin-top: 15px;
    margin-bottom: 15px;
  }

  .inputSignUp {
    margin-bottom: 15px; 
  }

  .inputSignUp input {
    padding: 12px;
    font-size: 16px; 
  }

  .inputSignUp img.input-icon {
    height: 22px; 
    width: 22px;
  }

  .checkboxAccept {
    display: flex;
    flex-direction: row;
    align-items: center; 
    gap: 8px; 
  }

  .login-btn {
    width: 100%; 
    font-size: 16px; 
    padding: 12px;
    border-radius: 6px; 
  }

  .footerLinks {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px; 
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 15px; 
  }
}