* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
}

body {
  background-color: rgb(220, 220, 220);
  font-family: sans-serif;
  font-size: 1rem;
  min-height: 100svh;
  position: relative;
}

form {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background-color: white;
  border-radius: 0.7em;
  padding: 1em;
  display: flex;
  flex-direction: column;
  row-gap: 1em;
  width: clamp(320px, 90%, 500px);
  color: rgb(90, 90, 90);
}

h1 {
  text-align: center;
}

div {
  display: flex;
  flex-direction: column;
  row-gap: 0.5em;
}

input {
  flex-grow: 1;
  padding: 1em;
  width: 100%;
  border-radius: 0.5em;
}

button {
  padding: 1em;
  background-color: #77f;
  border-radius: 0.5em;
  border: none;
  color: white;
  transition: background-color 0.3s ease-out;
}

button:hover {
  background-color: #55f;
}

span {
  font-weight: bold;
}