.box {
  width: 300px;
  padding: 40px;
  background: none;
  text-align: center;
  margin-right: auto;
  margin-left: auto;
}

.box h1 {
  color: var(--grey);
  text-transform: uppercase;
  font-weight: 500;
}

.box input[type = "text"], .box input[type = "password"], .box input[type = "password_a"] {
  border: 0;
  background: none;
  display: block;
  margin: 20px auto;
  text-align: center;
  border: 2px solid var(--blue);
  padding: 14px 10px;
  width: 200px;
  outline: none;
  color: var(--grey);
  border-radius: 24px;
  transition: 0.25s;
}

.box input[type = "text"]:focus, .box input[type = "password"]:focus, .box input[type = "password_a"]:focus {
  border-color: var(--green);
}

.box input[type = "submit"] {
  border: 0;
  background: none;
  display: block;
  margin: 20px auto;
  text-align: center;
  border: 2px solid var(--blue);
  padding: 14px 10px;
  width: 200px;
  outline: none;
  color: var(--grey);
  border-radius: 24px;
  transition: 0.25s;
  cursor: pointer;
}

.BTN-out {
  margin-left: auto;
  margin-right: auto;
}

.BTN-in {
  color: var(--white);
}