* {
  margin: 0;
  padding: 0;
}
:root {
  --bg: #2c2c2c;
  --blue: rgb(27, 190, 255);
}
body {
  background-color: var(--bg);
  background-image: url(img/unsplash_mBQIfKlvowM.png);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}
.box {
  padding: 1rem;
  border-radius: 10px;
  margin-top: 8%;
  margin-inline: auto;
  width: 20vw;
  height: 70vh;
  background-color: rgba(2, 2, 2, 0.336);
  color: white;
}
#title-text {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
  cursor: default;
  text-align: center;
  color: rgba(255, 255, 255, 0.103);
}
form {
  position: relative;
  padding-top: 2rem;
  margin-top: 1, 5rem;
  height: 70%;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
}
.name {
  border-bottom: 1px solid black;
  cursor: default;
  font-weight: 900;
  color: rgb(255, 255, 255);
  margin: 1rem 0;
  font-size: 1.5rem;
}
#surname:hover #Ssname {
  display: inline;
}

#Ssname {
  display: none;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.473);
}
form input {
  width: auto;
  height: 2rem;
  border: none;
  outline: none;
  background-color: transparent;
  font-size: 1rem;
  border-bottom: 1px solid rgb(70, 70, 70);
  font-weight: 900;
  color: white;
}

::-webkit-input-placeholder {
  color: rgba(0, 0, 0, 0.308);
  border: none;
  font-size: 1rem;
}
#fbtn {
  position: absolute;
  width: 10rem;
  height: 2rem;
  border-radius: 7px;
  border: none;
  cursor: pointer;
  margin-top: 3rem;
  background: var(--blue);
  color: white;
  font-weight: 700;
  font-family: Arial, Helvetica, sans-serif;
  text-align: center;
}
#fbtn:hover {
  transition: 0.5s;
  background-color: white;
  color: var(--blue);
}
#fbtn:active {
  transition: 0s;
  transform: translateY(1px);
}
#demo{
  border-left: 5px solid var(--blue);
  margin-right: 2rem;
  text-align: center;
  cursor: pointer;
  font-size: 1.5rem;
}