body {
      min-height: auto;
    }

    html {
      /* плавный переход по ссылкам */
      scroll-behavior: smooth;
    }

    .btn-up {
      position: fixed;
      background-color: #0e50f7;
      right: 20px;
      bottom: 30px;
      border-radius: 25px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: opacity 0.15s ease-in-out, transform 0.3s ease-in-out;
      color: #fff;
      width: 50px;
      height: 50px;
      opacity: 1;
      transform: translateY(0);
      z-index: 1000;
      /* Добавляем высокий z-index */
    }

    .btn-up_hide {
      display: none;
    }

    .btn-up_hiding {
      opacity: 0;
      transform: translateY(100px);
    }

    .btn-up-icon {
      width: 23px;
      height: 23px;
      fill: currentcolor;
    }

    @media (hover: hover) and (pointer: fine) {
      .btn-up:hover {
        background-color: #ef6c00;
      }
    }