* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Poppins', sans-serif;
    }

    body {
      background: #0d0d0d;
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
    }

    .container {
      background: #1a1a1a;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
      width: 350px;
    }

    .container h2 {
      text-align: center;
      color: #ffd700;
      margin-bottom: 20px;
      font-size: 28px;
    }

    form {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"] {
      padding: 12px;
      border: none;
      border-radius: 8px;
      background: #333;
      color: #fff;
    }

    input::placeholder {
      color: #bbb;
    }

    .btn {
      padding: 12px;
      border: none;
      border-radius: 8px;
      background: #ffd700;
      color: #0d0d0d;
      font-weight: 600;
      cursor: pointer;
      transition: 0.3s;
    }

    .btn:hover {
      background: #e6c200;
    }

    .switch {
      text-align: center;
      margin-top: 10px;
      font-size: 14px;
      color: #bbb;
    }

    .abtn {
      padding: 14px 42px;
      border-radius: 30px;
      background: var(--gold);
      border: none;
      cursor: pointer;
      font-weight: 600;
    }

    .form-title {
      text-align: center;
      margin-bottom: 10px;
      font-weight: 600;
      color: #ffd700;
    }

    .tab {
      display: flex;
      justify-content: center;
      margin-bottom: 20px;
      gap: 20px;
    }

    .tab .btn {
      background: none;
      color: #bbb;
      font-weight: 600;
      border: none;
      cursor: pointer;
      padding-bottom: 5px;
      font-size: 16px;
    }

    .tab .btn.active {
      color: #ffd700;
      border-bottom: 2px solid #ffd700;
    }