refactor: login page (#259)

src/style/login.css

@@ -47,141 +47,6 @@
   font: bold 200% Consolas, Monaco, monospace;
 }
 
-.input-group {
-  position: relative;
-  display: grid;
-  grid-template-columns: 7% 93%;
-  margin: 25px 0;
-  padding: 5px 0;
-  border-bottom: 2px solid #d9d9d9;
-}
-
-.input-group:nth-child(1) {
-  margin-bottom: 4px;
-}
-
-.input-group::before,
-.input-group::after {
-  content: "";
-  position: absolute;
-  bottom: -2px;
-  width: 0;
-  height: 2px;
-  background-color: #c5d3f7;
-  transition: 0.5s;
-}
-
-.input-group::after {
-  right: 50%;
-}
-
-.input-group::before {
-  left: 50%;
-}
-
-.icon {
-  display: flex;
-  justify-content: center;
-  align-items: center;
-}
-
-.icon svg {
-  color: #d9d9d9;
-  transition: 0.5s;
-}
-
-.input-group > div {
-  position: relative;
-  height: 45px;
-}
-
-.input-group > div > h5 {
-  position: absolute;
-  left: 10px;
-  top: 50%;
-  transform: translateY(-50%);
-  color: #d9d9d9;
-  font-size: 18px;
-  transition: 0.3s;
-  margin: 0;
-  padding: 0;
-}
-
-.input-group.focus .icon svg {
-  color: #5392f0;
-}
-
-.input-group.focus div h5 {
-  top: -5px;
-  font-size: 15px;
-}
-
-.input-group.focus::after,
-.input-group.focus::before {
-  width: 50%;
-}
-
-.input {
-  position: absolute;
-  width: 100%;
-  height: 100%;
-  top: 0;
-  left: 0;
-  border: none;
-  outline: none;
-  background: none;
-  padding: 0.5rem 0.7rem;
-  font-size: 1.2rem;
-  color: #555;
-  font-family: "Roboto", sans-serif;
-}
-
-a {
-  display: block;
-  text-align: right;
-  text-decoration: none;
-  color: #999;
-  font-size: 0.9rem;
-  transition: 0.3s;
-}
-
-a:hover {
-  color: #5392f0;
-}
-
-.btn {
-  display: block;
-  width: 100%;
-  height: 50px;
-  border-radius: 25px;
-  margin: 1rem 0;
-  font-size: 1.2rem;
-  outline: none;
-  border: none;
-  background-image: linear-gradient(to right, #567dbe, #5392f0, #567dbe);
-  cursor: pointer;
-  color: #fff;
-  text-transform: uppercase;
-  font-family: "Roboto", sans-serif;
-  background-size: 200%;
-  transition: 0.5s;
-}
-
-.btn:hover {
-  background-position: right;
-}
-
-.copyright {
-  position: absolute;
-  width: 100%;
-  height: 50px;
-  bottom: 2px;
-  color: #5392f0;
-  text-align: center;
-  font-size: 18px;
-  font-family: "Roboto", sans-serif;
-}
-
 @media screen and (max-width: 1080px) {
   .login-container {
     grid-gap: 9rem;