* {
    box-sizing: border-box;
  }
  body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-image: url('/index/image/f-soca_lever_cook.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin: 0;
  padding: 0;
  }

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

  .signup-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px); /* header + footer */
    padding: 1rem;
  }

  .signup-container {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  width: 100%;
  max-width: 420px;
  color: #fff;
  text-align: center;
  animation: fadeIn 0.6s ease-in-out;
  transition: transform 0.3s ease;
  }

  h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #58a6ff;
  }

  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="date"] {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: 1px solid #30363d;
    border-radius: 8px;
    background-color: #0d1117;
    color: #e6edf3;
  }

  input:focus {
    border-color: #58a6ff;
    outline: none;
  }

  .checkbox {
    margin: 12px 0;
  }

  .checkbox label {
    font-size: 0.9rem;
  }

  .checkbox a {
    color: #58a6ff;
    text-decoration: none;
  }

  #btn-login-worldair {
    width: 100%;
    padding: 12px;
    background-color: #0077cc;
    border: none;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  #btn-login-worldair:hover {
    background-color: #005fa3;
  }
  


  .discord-link {
    text-align: center;
    margin-top: 1rem;
  }

  .discord-link a {
    text-decoration: none;
    color: #58a6ff;
    font-weight: bold;
  }

  .popup {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #161b22;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    display: none;
    z-index: 9999;
    color: white;
  }

  .popup.success {
    border-left: 5px solid #2ea043;
  }

  .popup.error {
    border-left: 5px solid #f85149;
  }

  @media (max-width: 600px) {
    .signup-container {
      padding: 1.5rem;
    }

    h2 {
      font-size: 1.4rem;
    }
  }