* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

nav {
  width: 440px;
}

.wave-wrap {
  position: relative;
  width: 100%;
  height: 33px;
  overflow: hidden;
  margin-bottom: 0;
}
.wave-wrap #wave {
  position: absolute;
  width: 150px;
  transform-origin: bottom;
  transform: scaleY(0.8);
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.wave-wrap #wave .path {
  fill: #2f3542;
}

.list-wrap {
  display: flex;
  width: 100%;
  height: 80px;
  background: #2f3542;
  list-style: none;
  justify-content: space-around;
  padding: 0 20px;
}
.list-wrap li {
  cursor: pointer;
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.list-wrap li i {
  position: relative;
  font-size: 1.5em;
  color: #a4b0be;
  z-index: 5;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.list-wrap li:before {
  content: "";
  position: absolute;
  background: green;
  height: 80%;
  width: 80%;
  left: 10%;
  top: 10%;
  border-radius: 50%;
  z-index: 0;
  transform: scale(0);
  transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.list-wrap li.active {
  margin-top: -10px;
}
.list-wrap li.active i {
  color: #2f3542;
}
.list-wrap li.active:before {
  transform: scale(1);
}
.list-wrap li:nth-child(1):before {
  background: #eccc68;
}
.list-wrap li:nth-child(2):before {
  background: #ff6b81;
}
.list-wrap li:nth-child(3):before {
  background: #7bed9f;
}
.list-wrap li:nth-child(4):before {
  background: #70a1ff;
}
.list-wrap li:nth-child(5):before {
  background: #dfe4ea;
}

.phone {
  height: 300px;
  border: 7px solid rgba(47, 53, 66, 0.05);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  font-family: 'Montserrat', sans-serif;
}
.phone .page {
  height: 327px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3em;
  color: rgba(47, 53, 66, 0.1);
  text-transform: uppercase;
  letter-spacing: 5pt;
  padding-top: 50px;
}