* {
  margin: 0;
  padding: 0;
  font-family: "Inter", sans-serif;
  font-optical-sizing: auto;
  font-weight: 500;
  font-style: normal;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  width: 100vw;
  position: relative;
}
.themeIcon {
  position: fixed;
  top: 16px;
  left: calc(100% - 50px);
  font-size: 36px !important;
}

form {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  box-shadow: 10px 10px 30px rgba(0, 0, 0, 0.401);
  width: 290px;
  height: 400px;
  overflow: hidden;
  border-radius: 20px;
  padding: 20px 20px 20px 40px;
  gap: 16px;
}

.input,
.signUpSection,
.loginSection,
.head {
  display: flex;
  flex-direction: column;
  height: auto;
  width: 90%;
}
.input {
  margin-bottom: 16px;
}
.head {
  position: relative;
  justify-content: flex-start;
  margin-left: 20px;
}
.head::after {
  content: "";
  position: absolute;
  top: 102%;
  left: 12px;
  background: linear-gradient(to right, #152588, #4c85dc);
  height: 4px;
  border-radius: 5px;
  width: 50px;
}

input {
  height: 30px;
  width: 100%;
  border: 0px;
  padding-left: 7px;
  margin-top: 20px;
  margin-bottom: -1px;
  font-size: 17px;
  position: relative;
}

input::placeholder {
  font-size: 16px;
}
.continue,
.signUp,
.login {
  background: linear-gradient(to right, #0e107d, #4b7dc8);
  color: white;
  border: 0px solid;
  height: 35px;
  border-radius: 20px;
  margin-top: 15px;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
}

H3 {
  font-size: 25px;
}

input:focus {
  outline: none;
}

i {
  margin-right: 10px;
}

.underline {
  height: 3px;
  margin-top: -2px;
  padding: 0px;
  width: 0px;
  background-color: #1b1fdc;
  border-radius: 2px;
  z-index: 2;
}
@keyframes borderAnimate {
  0% {
    width: 0%;
  }
  100% {
    width: 103%;
  }
}
input:focus + .underline {
  animation: borderAnimate 0.7s forwards;
}

.signUpSection span,
.loginSection span {
  font-size: 14px;
  color: #353535;
}
.signUp a,
.login a {
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
}
.theme {
  cursor: pointer;
}
.message1,
.message2 {
  font-size: 14px;
}
input::-webkit-inner-spin-button,
input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0px;
}
@media screen and (max-width: 700px) {
  body {
    padding-top: 100px;
  }
  form {
    border: none;
    box-shadow: none;
  }
}
@media screen and (max-width: 400px) {
  body {
    padding-top: 60px;
    width: 100%;
    height: 100%;
  }
  form {
    width: 70%;
    height: auto;
    border: none;
    box-shadow: none;
  }
}