/* =============================== */
/*        Calculation Section      */
/* =============================== */

  .calculation-section {
    background-color: var(--primary-color);
    color: white;
  }
  
  .calculation-section .content-wrapper {
    width: calc(var(--cw-text) * var(--cfactor));
    margin: 0 auto;
    text-align: center;
  }
  
  .calculation-section h1 {
    text-align: left;
    font-size: calc(var(--headline) * var(--cfactor-f));
    font-weight: normal;
    margin: 0;
    margin-bottom: calc(var(--text-gap) * var(--cfactor));
    overflow-x: visible;
    white-space: nowrap;
  }

  .calculation-section p {
    font-size: calc(var(--text2) * var(--cfactor-f));
    margin: 0;
  }
  
  .form-group {
    text-align: left;
    margin-bottom: calc(var(--text-gap) * var(--cfactor));
  }
  
  .form-group h3 {
    margin-bottom: calc(var(--calc-h3-gap) * var(--cfactor));
    margin-top: 0;
    font-weight: bold;
    font-size: calc(var(--headline3) * var(--cfactor-f));
  }
  
  .button-group {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--calc-button-gap) * var(--cfactor));
  }
  
  .option-button {
    width: calc(var(--calc-button-w) * var(--cfactor));
    height: calc(var(--calc-button-h) * var(--cfactor));
    border: none;
    border-radius: 5px;
    background: linear-gradient(var(--primary-color-30), var(--primary-color-60));
    color: var(--primary-color);
    cursor: pointer;
    font-weight: normal;
    font-size: calc(var(--calc-button-p) * var(--cfactor-f));
  }
  
  .option-button:hover {
    opacity: 0.9;
  }
  
  .option-button.highlight {
    background: linear-gradient(var(--secondary-color-30), var(--secondary-color-60));
    color: var(--bg-color);
  }

  .option-button.selected {
    background: linear-gradient(var(--secondary-color-30), var(--secondary-color-60));
    color: var(--bg-color);
  }
  
  .range-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
  }
  
  .range-wrapper input[type="text"] {
    max-width: calc(var(--calc-button-w) * var(--cfactor));;
    padding: 5px 0px;
    padding-left: 20px;
    border-radius: 6px;
    border: none;
    background-color: var(--primary-color-60);
    color: var(--bg-color);
    font-size: calc(var(--calc-button-p) * var(--cfactor-f));
  }
  
  input[type="range"].slider {
    width: 100%;
    accent-color: var(--secondary-color-30);
  }
  
  input[type="text"] {
    border-radius: 2px;
    border: none;
    background-color: var(--primary-color-30);
    color: var(--primary-color);
  }
  
  .calculation-section ::placeholder {
    color: var(--primary-color);
    font-size: 12pt;
  }

  .fee-field {
    background-color: var(--primary-color-30);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 6px;
    display: inline-block;
    font-size: calc(var(--calc-fee-p) * var(--cfactor-f));
    font-weight: bold;
    transition: transform 0.3s ease, color 0.3s ease;
    transform: scale(1);
  }
  
  .fee-field.update {
    color: var(--primary-color-60);
    transform: scale(1.1);
  }  

  .button-group .option-button.active {
    background: linear-gradient(var(--secondary-color-30), var(--secondary-color-60));
    color: var(--bg-color);
  }

  .calculation-section .cta-button {
    align-self: center;
  }

  @media screen and (max-width: 768px) {
    .calculation-section .content-wrapper {
      width: 100%;
      max-width: 550px;
      padding: 0 20px;
      text-align: center;
      margin: 0 auto;
    }
  
    .calculation-section h1 {
      overflow-x: hidden;
      white-space: unset;
    }
  
    .calculation-section p {
      font-size: 11pt;
      line-height: 1.6;
      text-align: left;
    }
  
    .calculation-section .cta-button {
      font-size: 11pt;
      margin-top: 30px;
      align-self: center;
    }
  }