style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
.navbar{
  width: 100%;
  position: relative;
}
label{
  display: block;
  position: fixed;
  top: -20px;
  left: 0px;
  width: 100%;
  height: 40px;
  cursor: pointer;
}
label input{
  appearance: none;
}
label .logo_menu{
  position: relative;
  display: block;
  width: 40px;
  height: 100%;
  margin: 20px;
  background: #c7c7c7;
  border-radius: 10px;
}
label .logo_menu::before{
  content: "\f0c9";
  font-family: "Font Awesome 6 Free";
  font-weight: 600;
  font-size: 1.2em;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
label input:checked ~ .logo_menu::before{
  content: "\f00d";
}
label input:checked ~ .navigation{
  min-height: 100vh;
}
.navigation {
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  width: 100%;
  height: 0;
  margin-top: -85px;
  transition: 0.5s;
}
.navigation ul {
  position: relative;
}
.navigation ul li{
  text-align: center;
  list-style: none;
}
.navigation ul li a{
  text-decoration: none;
  color: #333;
  font-size: 3em;
  padding: 5px 20px;
  font-weight: 700;
  transition: 0.5s;
}
.navigation ul:hover li a{
  color: #0002;
}
.navigation ul li:hover a{
  color: #000;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 20px;
}
.navigation ul li a::before{
  content: '';
  position: absolute;
  top: 50%;
  left: 40%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 5em;
  color: rgba(0, 0, 0, 0.1);
  z-index: -1;
  border-radius: 50%;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 500px;
  opacity: 0;
  transition: letter-spacing 0.5s, left 0.3s;
}
.navigation ul li a:hover::before{
  content: attr(data-text);
  opacity: 1;
  letter-spacing: 10px;
  left: 50%;
  width: 2800px;
  height: 2800px;
}
.navigation ul li:nth-child(1) a::before{
  background-color: rgb(238, 189, 97);
}
.navigation ul li:nth-child(2) a::before{
  background-color: rgb(21, 157, 241);
}
.navigation ul li:nth-child(3) a::before{
  background-color: rgb(221, 255, 0);
}
.navigation ul li:nth-child(4) a::before{
  background-color: rgb(50, 230, 47);
}
.navigation ul li:nth-child(5) a::before{
  background-color: rgb(235, 71, 71);
}