.header {
  width: 100vw;
  box-shadow: 0 1px 4px rgb(146 161 176 / 15%);
}

.container {
  display: block;
  position: relative;
  width: 100%;
  height: 60px;
  margin: 0 auto;
}

.header .container li {
  list-style: none;
}

.header .container a {
  text-decoration: none;
  color: #0e2431;
  font-weight: 500;
  font-size: 1.2rem;
  padding: 0.7rem;
}

.header .container a:hover{
    font-weight: bolder;
}

.container .checkbox {
  position: absolute;
  display: block;
  height: 32px;
  width: 32px;
  top: 20px;
  left: 20px;
  z-index: 6;
  opacity: 0;
  cursor: pointer;
}

.container .hamburger-lines {
  display: block;
  height: 26px;
  width: 32px;
  position: absolute;
  top: 17px;
  left: 20px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.container .hamburger-lines .line {
  display: block;
  height: 4px;
  width: 100%;
  border-radius: 10px;
  background: #0e2431;
}

.container .hamburger-lines .line1 {
  transform-origin: 0% 0%;
  transition: transform 0.4s ease-in-out;
}

.container .hamburger-lines .line2 {
  transition: transform 0.2s ease-in-out;
}

.container .hamburger-lines .line3 {
  transform-origin: 0% 100%;
  transition: transform 0.4s ease-in-out;
}

.header .menu-items {
  font-family: "Alef", sans-serif;
  font-weight: 400;
  font-style: normal;
  padding: 100px;
  box-shadow: inset 0 0 2000px rgba(255, 255, 255, .5);
  position: absolute;
  min-height: 100vh;
  width: 100vw;
  transform: translateX(-100%);
  transition: transform 0.5s ease-in-out;
  display: flex;
  flex-direction: column;
  text-align: center;
  background: transparent;  
  backdrop-filter: blur(50px);  
  -webkit-backdrop-filter: blur(50px);
  z-index: 4;
}

.header .menu-items li {
  margin-bottom: 1.2rem;
  font-size: 1.5rem;
  font-weight: 500;
}

.header-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
}

.container input[type="checkbox"]:checked ~ .menu-items {
  transform: translateX(0);
}

.container input[type="checkbox"]:checked ~ .hamburger-lines .line1 {
  transform: rotate(45deg);
}

.container input[type="checkbox"]:checked ~ .hamburger-lines .line2 {
  transform: scaleY(0);
}

.container input[type="checkbox"]:checked ~ .hamburger-lines .line3 {
  transform: rotate(-45deg);
}