* {
  box-sizing: border-box;
}

:root {
  --fg: #111827;
  --bg: #F9FAFB;
  --gray: #9CA3AF;
}

body {
  margin: 0;
  padding: 0;
  font-size: 18px;
  color: var(--fg);
  min-height: 100vh;
  background-color: var(--bg);
  display: flex;
  flex-direction: column;
  font-family: -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif,
    "Apple Color Emoji",
    "Segoe UI Emoji",
    "Segoe UI Symbol";
}

main {
  max-width: 1024px;
  margin: 0 auto;
  padding: 4rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  flex-grow: 1;
}

p {
  line-height: 1.6;
}

.img {
  margin-bottom: 4rem;
}

input {
  appearance: none;
  width: 100%;
  max-width: 400px;
  font-size: 1em;
  border: solid 2px;
  border-color: peachpuff;
  border-radius: 4px;
  padding: 1rem 1.5rem;
}

input:focus {
  outline: none;
  border-color: hotpink;
}

.desc {
  max-width: 250px;
  margin: 0 auto;
  padding-bottom: 2rem;
}

.hint {
  color: var(--gray);
  font-size: 0.75em;
  margin-top: 1rem;
}

footer {
  display: flex;
  flex-direction: column;
  align-items: center;

  font-size: 14px;
  padding: 1rem;
  text-align: center;
}

footer a {
  display: block;
  color: var(--gray);
  text-decoration: none;
}

footer a:last-child {
  margin-top: 0.5rem;
}

footer a:hover {
  color: hotpink;
}