<form class="form-with-custom-checkboxes-radios">
  <div>
    <h4>Age</h4>
    <span class="wpcf7-form-control-wrap age">
      <span class="wpcf7-form-control wpcf7-radio">
        <span class="wpcf7-list-item first">
          <label>
            <input type="radio" name="age" value="" checked="checked">
            <span class="wpcf7-list-item-label">Under 18</span>
          </label>
        </span>
        <span class="wpcf7-list-item">
          <label>
            <input type="radio" name="age" value="">
            <span class="wpcf7-list-item-label">18-30</span>
          </label>
        </span>
        <span class="wpcf7-list-item">
          <label>
            <input type="radio" name="age" value="">
            <span class="wpcf7-list-item-label">30-45</span>
          </label>
        </span>
        <span class="wpcf7-list-item">
          <label>
            <input type="radio" name="age" value="">
            <span class="wpcf7-list-item-label">45-65</span>
          </label>
        </span>
        <span class="wpcf7-list-item last">
          <label>
            <input type="radio" name="age" value="">
            <span class="wpcf7-list-item-label">65+</span>
          </label>
        </span>
      </span>
    </span>
  </div>
  <div>
    <h4>Hobbies</h4>
      <span class="wpcf7-form-control-wrap hobbies">
        <span class="wpcf7-form-control wpcf7-checkbox">
          <span class="wpcf7-list-item first">
            <label>
              <input type="checkbox" name="hobbies[]" value="">
              <span class="wpcf7-list-item-label">Reading</span>
            </label>
          </span>
          <span class="wpcf7-list-item">
            <label>
              <input type="checkbox" name="hobbies[]" value="">
              <span class="wpcf7-list-item-label">Fishing</span>
            </label>
          </span>
          <span class="wpcf7-list-item">
            <label>
              <input type="checkbox" name="hobbies[]" value="">
              <span class="wpcf7-list-item-label">Traveling</span>
            </label>
          </span>
          <span class="wpcf7-list-item">
            <label>
              <input type="checkbox" name="hobbies[]" value="">
              <span class="wpcf7-list-item-label">Music</span>
            </label>
          </span>
          <span class="wpcf7-list-item last">
            <label>
              <input type="checkbox" name="hobbies[]" value="">
              <span class="wpcf7-list-item-label">Watching Sports</span>
            </label>
          </span>
        </span>
      </span>
  </div>
</form>

<footer class="page-footer">
  <span>made by </span>
  <a href="https://georgemartsoukos.com/" target="_blank">
    <img width="24" height="24" src="https://assets.codepen.io/162656/george-martsoukos-small-logo.svg" alt="George Martsoukos logo">
  </a>
</footer>

body {
  font-family: "Inter", sans-serif;
  display: flex;
  justify-content: center;
  margin-top: 30px;
  background: #e5f0e7;
}

.form-with-custom-checkboxes-radios div:first-child {
  padding-bottom: 20px;
  border-bottom: 1px solid;
}

.form-with-custom-checkboxes-radios h4 {
  margin: 20px 0;
}

.form-with-custom-checkboxes-radios .wpcf7-list-item,
.form-with-custom-checkboxes-radios label {
  display: flex;
}

.form-with-custom-checkboxes-radios .wpcf7-list-item {
  margin: 0;
}

.form-with-custom-checkboxes-radios .wpcf7-list-item:not(:last-child) {
  margin-bottom: 10px;
}

.form-with-custom-checkboxes-radios label {
  cursor: pointer;
}

.form-with-custom-checkboxes-radios [type="radio"],
.form-with-custom-checkboxes-radios [type="checkbox"] {
  position: absolute;
  left: -9999px;
}

.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label,
.form-with-custom-checkboxes-radios [type="checkbox"] + .wpcf7-list-item-label {
  position: relative;
  padding-left: 30px;
  line-height: 20px;
}

.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::before,
.form-with-custom-checkboxes-radios [type="checkbox"] + .wpcf7-list-item-label::before,
.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::after,
.form-with-custom-checkboxes-radios [type="checkbox"] + .wpcf7-list-item-label::after {
  content: "";
  position: absolute;
  box-sizing: border-box;
}

.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::before,
.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::after {
  border-radius: 50%;
}

.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::before,
.form-with-custom-checkboxes-radios [type="checkbox"] + .wpcf7-list-item-label::before {
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  border: 2px solid black;
}

.form-with-custom-checkboxes-radios [type="radio"] + .wpcf7-list-item-label::after,
.form-with-custom-checkboxes-radios [type="checkbox"] + .wpcf7-list-item-label::after {
  top: 5px;
  left: 5px;
  width: 10px;
  height: 10px;
  background: black;
  transition: all 0.2s;
}

.form-with-custom-checkboxes-radios [type="radio"]:not(:checked) + .wpcf7-list-item-label::after,
.form-with-custom-checkboxes-radios [type="checkbox"]:not(:checked) + .wpcf7-list-item-label::after {
  opacity: 0;
  transform: scale(0.01);
}

.form-with-custom-checkboxes-radios [type="radio"]:checked + .wpcf7-list-item-label::after,
.form-with-custom-checkboxes-radios [type="checkbox"]:checked + .wpcf7-list-item-label::after {
  opacity: 1;
  transform: scale(1);
}

.form-with-custom-checkboxes-radios [type="radio"]:focus + .wpcf7-list-item-label::before,
.form-with-custom-checkboxes-radios [type="checkbox"]:focus + .wpcf7-list-item-label::before {
  box-shadow: 0 0 4px 3px red;
}

/* FOOTER STYLES
–––––––––––––––––––––––––––––––––––––––––––––––––– */
.page-footer {
  position: fixed;
  right: 0;
  bottom: 50px;
  display: flex;
  align-items: center;
  padding: 5px;
  z-index: 1;
}

.page-footer a {
  display: flex;
  margin-left: 4px;
}