* {
  box-sizing: border-box;
}

:root {
  --color-primary: #2f67ec;
}

body {
  font-family: "Euclid Circular A", "Poppins";
  background: #12161f;
  color: white;
  margin: 0;
  height: 94vh;
  display: grid;
  place-items: center;
}

nav {
  position: relative;
  background: #1f2635;
  font-weight: 400;
  font-size: 0;
  display: flex;
  padding: 0;
  width: 80%;
}

nav .item {
  font-size: 0.8rem;
  display: inline-block;
  position: relative;
  padding: 0 20px;
  cursor: pointer;
  z-index: 5;
  min-width: 25%;
  height: 60px;
  line-height: 60px;
  text-align: center;
}

.dropdown {
  overflow: hidden;
  list-style: none;
  position: absolute;
  padding: 0;
  width: 100%;
  left: 0;
  top: 62px;
}
.dropdown > div {
  transform: translate(0, -100%);
  transition: all 0.5s 0.1s;
  position: relative;
}

.dropdown a {
  display: block;
  padding: 0;
  width: 100%;
  height: 40px;
  line-height: 40px;
  background: var(--color-primary);
}

.dropdown a:hover {
  background: #254fb5;
}

.underline {
  height: 6px;
  background: var(--color-primary);
  position: absolute;
  bottom: 0;
  width: 25%;
  z-index: 2;
  pointer-events: none;
  transition: 0.35s;
}

nav .item:hover > .dropdown > div {
  transform: translate(0);
}

nav .item:nth-child(1):hover ~ .underline {
  transform: translate(0, 0);
}

nav .item:nth-child(2):hover ~ .underline {
  transform: translate(100%, 0);
}

nav .item:nth-child(3):hover ~ .underline {
  transform: translate(200%, 0);
}

nav .item:nth-child(4):hover ~ .underline {
  transform: translate(300%, 0);
}