<section class="cost">
        <div class="container">

<ul class="list-reset cost__list">
  <li class="cost__item cost-item">
    <h3 class="cost-item__title">NAME1</h3>
    <div class="cost-item__value">20.000 ₽</div>
    <p class="cost-item__descr">Текст подзаголовка</p>
    <button class="btn-reset btn">Оставить заявку</button>
  </li>
  <li class="cost__item cost-item">
    <h3 class="cost-item__title">NAME2</h3>
    <div class="cost-item__value">15.000 ₽</div>
    <p class="cost-item__descr">Текст подзаголовка</p>
    <button class="btn-reset btn">Оставить заявку</button>
  </li>
  <li class="cost__item cost-item">
    <h3 class="cost-item__title">NAME3</h3>
    <div class="cost-item__value">10.000 ₽</div>
    <p class="cost-item__descr">Текст подзаголовка</p>
    <button class="btn-reset btn">Оставить заявку</button>
  </li>
  </ul>

        </div>
      </section>

 .container {
      max-width: 1190px;
      margin: 0 auto;
      padding: 0 15px;
    } 
 .btn-reset {
      padding: 0;
      border: none;
      background-color: transparent;
      cursor: pointer;
    }

    .btn {
      padding: 25px;
      min-width: 280px;
      font-weight: 400;
      font-size: 18px;
      line-height: 160%;
      text-align: center;
      color: #fff;
      background-color: red;
      transition: background-color 0.3s ease-in-out;
      border-radius: 5px;
    }

.cost {
      padding: 120px 0;
    }

    .cost__list {
      width: 300px;
      height: 100%;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      column-gap: 40px;
      justify-content: space-between;
      align-content: center;
    }

    .cost-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: #gfhghg;
      border: 1px solid rgba(20, 16, 36, 0.2);
      background-color: #fff;
      border-radius: 20px;
      padding: 40px;
      text-align: center;
      transition: all 0.3s ease-in;
    }

    .cost-item__title {
      margin: 0;
      margin-bottom: 43px;
      font-weight: 600;
      font-size: 30px;
      line-height: 160%;
      text-transform: uppercase;
    }

    .cost-item__value {
      margin-bottom: 15px;
      font-weight: 600;
      font-size: 50px;
      line-height: 160%;
    }

    .cost-item__descr {
      margin: 0;
      margin-bottom: 56px;
      font-weight: 400;
      font-size: 18px;
      line-height: 160%;
      max-width: 250px;
    }

    .cost-item__btn {
      margin-top: auto;
      margin-bottom: 0;
    }

    .cost-item:hover {
      transform: scale(1.1);
      border: 1px solid rgb(20, 16, 36);
      background-color: rgb(20, 16, 36);
      color: #fff;      
    }

.cost-item:hover .cost-item__title {
  margin-bottom: 83px;
}