* {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      background-color: #0a0a0f;
      color: #eee;
      font-family: 'Segoe UI', sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    .auth-wrapper {
      background: #111;
      border: 1px solid #444;
      border-radius: 12px;
      padding: 30px;
      width: 100%;
      max-width: 500px;
      box-shadow: 0 0 12px #ff66c4;
    }

    .auth-toggle {
      display: flex;
      justify-content: space-around;
      margin-bottom: 20px;
    }

    .auth-toggle button {
      background: none;
      border: none;
      color: #ff66c4;
      font-size: 16px;
      cursor: pointer;
      padding: 10px;
      border-bottom: 2px solid transparent;
    }

    .auth-toggle button.active {
      border-color: #ff66c4;
    }

    form {
      display: none;
      flex-direction: column;
    }

    form.active {
      display: flex;
    }

    .input-group {
      margin-bottom: 15px;
    }

    .input-group label {
      display: block;
      margin-bottom: 5px;
    }

    .input-group input {
      width: 100%;
      padding: 10px;
      background: #1a1a1f;
      color: #eee;
      border: 1px solid #333;
      border-radius: 8px;
    }

    .birthdate-wrapper {
      display: flex;
      gap: 10px;
    }

    .birthdate-wrapper input {
      flex: 1;
    }

    .password-wrapper {
      position: relative;
    }

    .toggle-password {
      position: absolute;
      right: 10px;
      top: 50%;
      transform: translateY(-50%);
      color: #ff66c4;
      cursor: pointer;
    }

    .buttons {
      display: flex;
      justify-content: space-between;
      gap: 10px;
    }

    .lbtn, .sbtn {
      flex: 1;
      padding: 10px;
      border: none;
      border-radius: 8px;
      font-weight: bold;
      cursor: pointer;
    }

    .lbtn {
      background-color: #ff66c4;
      color: #111;
    }

    .sbtn {
      background-color: #222;
      color: #ff66c4;
      text-align: center;
      display: block;
      text-decoration: none;
    }