body {
      background: linear-gradient(135deg, #004aad, #d90429);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 2rem 0;
    }
    
    .register-card {
      background: rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-radius: 1rem;
      border: none;
    }
    
    .logo {
      max-width: 100px;
      height: auto;
    }
    
    .form-control,
    textarea.form-control {
      background: transparent !important;
      border: none;
      border-bottom: 2px solid #fff;
      border-radius: 0;
      color: #fff;
    }
    
    .form-control:focus,
    textarea.form-control:focus {
      box-shadow: none;
      border-bottom: 2px solid #ffd700;
      color: #fff;
      background: transparent !important;
    }
    
    .form-control::placeholder {
      color: rgba(255, 255, 255, 0.6);
    }
    
    .form-label {
      color: #fff;
      font-weight: 500;
    }
    
    .input-group-text {
      background: transparent;
      border: none;
      border-bottom: 2px solid #fff;
      color: #fff;
      cursor: pointer;
    }
    
    .input-group-text:hover {
      color: #ffd700;
    }
    
    .btn-primary {
      background-color: #004aad;
      border: none;
      padding: 0.75rem;
      font-weight: 600;
    }
    
    .btn-primary:hover {
      background-color: #003580;
    }
    
    .link-warning {
      color: #ffd700 !important;
      font-weight: 600;
    }
    
    .link-warning:hover {
      color: #ffed4e !important;
    }
    
    /* iOS zoom prevention */
    @media screen and (max-width: 576px) {
      input,
      textarea,
      select {
        font-size: 16px !important;
      }
    }