/* Общий контейнер */
  #renovation-calculator {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    font-family: "Helvetica Neue", Arial, sans-serif;
    color: #333;
  }
  /* Заголовки секций */
  .section-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #1a1a1a;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 4px;
  }
  /* Строка калькулятора */
  .calc-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
    flex-wrap: wrap;
  }
  .calc-row label {
    flex: 1 1 180px;
    font-size: 0.95rem;
  }
  .calc-input {
    width: 100px;
    padding: 6px 8px;
    font-size: 0.95rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    text-align: right;
  }
  .calc-checkbox {
    transform: scale(1.2);
    margin-right: 6px;
  }
  .unit, .price-unit, .line-total {
    flex: 0 0 auto;
    margin-left: 8px;
    font-size: 0.95rem;
  }
  .price-unit {
    color: #666;
  }
  .line-total {
    font-weight: bold;
    color: #000;
  }
  /* Секция итогов */
  .summary-section {
    margin-top: 20px;
    padding-top: 12px;
    border-top: 2px solid #e0e0e0;
  }
  .summary-block {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    font-size: 1.2rem;
    font-weight: bold;
  }
  #grand-total {
    color: #d32f2f;
  }
  /* Кнопка сброса */
  .btn-reset {
    margin-top: 10px;
    padding: 8px 16px;
    background: #fff;
    border: 2px solid #d32f2f;
    color: #d32f2f;
    border-radius: 4px;
    font-size: 0.95rem;
    cursor: pointer;
  }
  .btn-reset:hover {
    background: #d32f2f;
    color: #fff;
    transition: 0.2s;
  }
  /* Адаптивность */
  @media (max-width: 600px) {
    .calc-row {
      flex-direction: column;
      align-items: flex-start;
    }
    .calc-input {
      width: 100%;
      margin-top: 4px;
    }
    .unit, .price-unit, .line-total {
      margin-left: 0;
      margin-top: 4px;
    }
  }