   footer{
      text-align:center; padding:20px; background:var(--primary); color:#fff; margin-top:30px;
    }

    .top-btn {
      position: fixed;
      right: 10px;
      bottom: 80px;
      background-color: #facc15;
      color: white;
      border: none;
      padding: 12px 20px;
      border-radius: 30px;
      font-size: 16px;
      font-weight: bold;
      cursor: pointer;
      box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: center;
      gap: 8px;
      tran