@import url("https://fonts.googleapis.com/css2?family=Noto+Sans:wght@200;300;400;500&display=swap");
/* this is to import a font family from the internet from this link => https://fonts.google.com/ */

/* !==> be sure you always write this in the beginning of your css code */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Noto Sans", sans-serif;
}

body {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  flex-direction: column;
  height: 100vh; /* the body will take 100% of the height of the page*/
}

h1 {
  text-align: center;
  padding: 1rem;
}
form {
  /* !=> this is a new css feature , it means the form will take the minimum 
    between 70% or 25rem (rem = 16px) */
  width: min(70%, 25rem);
}

/* when we write form > div it means the direct child of
the form tag => like this 
<form>
    <div> ==> this is a dirct child
        <div> --> this is not a direct child
        
    ...

*/

form > div {
  margin-bottom: 1.5rem;
}
form > div > label {
  display: block;
  padding-bottom: 0.5rem;
}

input {
  width: 100%;
  padding: 0.5rem;
  border: solid 1px grey;
  border-radius: 0.5rem;
  margin-bottom: 0.25rem;
  font-size: 1rem;
  transition: 0.5s;
}
input.valid {
  border-width: 2px;
  border-color: green;
  outline: green;
}
input.invalid {
  border-width: 2px;
  border-color: red !important;
  outline: red !important;
}

form > div p {
  color: grey;
  font-size: 0.8rem;
  text-align: center;
}
input[type="submit"] {
  width: 50%;
  align-self: start;
  background-color: #2e2e2e;
  color: white;
  border: none;
  border-radius: 0.5rem;
  padding: 1rem;
  cursor: pointer;
  transition: 0.5s;
}
input[type="submit"]:hover {
  background-color: #505050;
}