body {
      margin: 0;
      padding: 0;
      background: linear-gradient(to bottom, #000000, #212121);
      font-family: Arial, sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    .card {
      width: 320px;
      text-align: center;
    }

    .title {
      font-size: 2.4rem;
      font-weight: bold;
      color: white;
      margin-bottom: 2rem;
    }

    .form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .input {
      width: 100%;
      padding: 0.8rem;
      border-radius: 0.5rem;
      border: none;
      outline: none;
      background-color: #222222;
      color: white;
      box-sizing: border-box;
      margin-bottom: 1rem;
    }

    .link {
        width: 100%;
        padding: 0.8rem;
        border-radius: 0.5rem;
        border: none;
        outline: none;
        background-color: transparent;
        color: #aaa;
        box-sizing: border-box;
        font-size: 1rem;
        cursor: pointer;
        text-decoration: underline;
    }

    .input::placeholder {
      color: #aaa;
    }

    .button {
      width: 100%;
      padding: 0.8rem;
      background-color: #333333;
      border: none;
      border-radius: 0.5rem;
      color: white;
      font-size: 1rem;
      cursor: pointer;
      transition: background 0.3s ease;
      box-sizing: border-box;
    }

    .button:hover {
      background-color: #555555;
    }


.back {
    position: fixed;
    top: 10px;
    left: 20px;
    text-decoration: none;
}

.back-btn {
    color: white;
    background-color: transparent;
    font-size: 26px;
    padding: 10px 10px 10px 10px;
    border: none;
}

    .btn-a {
        color: black;
        background-color: white;
        border: 1px solid black;
    }