@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@100..900&display=swap");

html {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: whitesmoke;
  font-family: Sen, sans-serif;
  letter-spacing: 1.5px;
}

.container {
  background-color: white;
  width: 480px;
  /* height: 630px; */
  margin: auto 15px;
  border-radius: 10px;
  box-shadow: 0px 5px 40px 10px rgb(0 0 255 / 0.2);
  -webkit-border-radius: 10px;
  -moz-border-radius: 10px;
  -ms-border-radius: 10px;
  -o-border-radius: 10px;
}

h1 {
  text-align: center;
}

form {
  padding: 5px 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  row-gap: 2px;
  margin-bottom: 15px;
}

.form-group label {
  font-size: 0.9rem;
}
.form-group input {
  padding: 5px;
  outline: none;
  border: 1px solid black;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -ms-transition: all 0.3s;
  -o-transition: all 0.3s;
}
.form-group input:valid {
  border-color: green;
}
.form-group input:invalid {
  border-color: red;
}
button {
  color: white;
  background-color: black;
  outline: none;
  border: none;
  width: 100%;
  padding: 15px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
  cursor: pointer;
}
button:hover {
  filter: brightness(200%);
  background: rgb(22, 22, 22);
  -webkit-filter: brightness(200%);
}
button:active {
  position: relative;
  top: 2px;
}
.message-container {
  margin: 15px 20px 21px;
  padding: 15px;

  /* *change color in js  */
  color: black;
  text-align: center;
  border: 1px solid black;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  -ms-border-radius: 5px;
  -o-border-radius: 5px;
}

.message-container h3 {
  margin: 0;
}