Меню гамбургер для Craftum

Ваш код для конструктора Сraftum:

 <div class="menu-wrap">
  <input type="checkbox" class="toggler">
  <div class="hamburger">
    <div></div>
  </div>
  <div class="menu">
    <div>
      <div>
        <ul>
          <li><a href="/">Главная</a></li>
          <li><a href="/">О компании</a></li>
          <li><a href="/">Услуги</a></li>
          <li><a href="/">Контакты</a></li>
          <li><a href="tel:+71234567890">+7(123)456-78-90</a></li>
          <li><a href="mailto:mail@companu.ru">mail@companu.ru</a></li>
        </ul>
      </div>
    </div>
  </div>
</div>
<style>
/* CORE STYLES */
:root {
  --primary-color: rgba(13, 110, 139, 0.75);
  --overlay-color: rgba(24, 39, 51 , 0.85);
  --menu-speed: 0.75s;
}
.showcase:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.showcase .showcase-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
}

.showcase h1 {
  font-size: 4rem;
}

.showcase p {
  font-size: 1.3rem;
}

.btn {
  display: inline-block;
  border: none;
  background: var(--primary-color);
  color: #fff;
  padding: 0.75rem 1.5rem;
  margin-top: 1rem;
  transition: opacity 1s ease-in-out;
  text-decoration: none;
}

.btn:hover {
  opacity: 0.7;
}

/* MENU STYLES */
.menu-wrap {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
}

.menu-wrap .toggler {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  cursor: pointer;
  width: 50px;
  height: 50px;
  opacity: 0;
}

.menu-wrap .hamburger {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  width: 50px;
  height: 50px;
  padding: 1rem;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hamburger Line */
.menu-wrap .hamburger > div {
  position: relative;
  flex: none;
  width: 100%;
  height: 2px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
}

/* Hamburger Lines - Top & Bottom */
.menu-wrap .hamburger > div::before,
.menu-wrap .hamburger > div::after {
  content: '';
  position: absolute;
  z-index: 1;
  top: -10px;
  width: 100%;
  height: 2px;
  background: inherit;
}

/* Moves Line Down */
.menu-wrap .hamburger > div::after {
  top: 10px;
}

/* Toggler Animation */
.menu-wrap .toggler:checked + .hamburger > div {
  transform: rotate(135deg);
}

/* Turns Lines Into X */
.menu-wrap .toggler:checked + .hamburger > div:before,
.menu-wrap .toggler:checked + .hamburger > div:after {
  top: 0;
  transform: rotate(90deg);
}

/* Rotate On Hover When Checked */
.menu-wrap .toggler:checked:hover + .hamburger > div {
  transform: rotate(225deg);
}

/* Show Menu */
.menu-wrap .toggler:checked ~ .menu {
  visibility: visible;
}

.menu-wrap .toggler:checked ~ .menu > div {
  transform: scale(1);
  transition-duration: var(--menu-speed);
}

.menu-wrap .toggler:checked ~ .menu > div > div {
  opacity: 1;
  transition:  opacity 0.4s ease 0.4s;
}

.menu-wrap .menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  visibility: hidden;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.menu-wrap .menu > div {
  background: rgb(0 0 0 / 85%);
  border-radius: 50%;
  width: 200vw;
  height: 200vw;
  display: flex;
  flex: none;
  align-items: center;
  justify-content: center;
  transform: scale(0);
  transition: all 0.4s ease;
}

.menu-wrap .menu > div > div {
  text-align: center;
  max-width: 90vw;
  max-height: 100vh;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.menu-wrap .menu > div > div > ul > li {
  list-style: none;
  color: #fff;
  font-size: 1.5rem;
  padding: 1rem;
}

.menu-wrap .menu > div > div > ul > li > a {
  color: inherit;
  text-decoration: none;
  transition: color 0.4s ease;
}
</style>