body {
  margin: 0;
  padding: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Crect width='60' height='60' fill='%23080811'/%3E%3Crect x='0' y='59' width='60' height='1' fill='%23111118'/%3E%3Crect x='59' y='0' width='1' height='60' fill='%23111118'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 60px 60px;
  background-color: #080811;    
}
header {
  padding-top: 2rem;
  width: 100%;
  text-align: center;
}
::selection {
  background: #557;
  color: rgb(195, 195, 205);
}
main {
  display: grid;
  justify-content: center;
}
.container {
    box-sizing: border-box;
    max-width: 720px;
    margin: 0 1rem;
    display: grid;
    grid-template-columns: repeat(6, 3fr);
    grid-column-gap: 1rem;
    grid-row-gap: 0.5rem;
    height: min-content;
    font-family: sans-serif;
}

.container h3 {
  margin-top: 1.25rem;
  grid-column: span 6;
}

.container label:has(+ input[type="radio"]) {
  font-size: 1.25rem;
  box-sizing: border-box;
  padding: 0.75rem;
  font-size: 1.25rem;
  border-radius: 1rem;
  appearance: textfield;
  grid-column: span 3;
  grid-row: span 2;
  background: hsl(240, 16%, 12%);
  border: 1px solid hsl(240, 12%, 20%);
  color: rgb(195, 195, 205);
  font-family: 'Cascadia Mono';
}

.container input[type="radio"] {
  display: none;
}

.container label:has(+ input[type="radio"]:checked) {
  background-color: #557;
  color: rgb(195, 195, 205);
  border-color: #669;
}

h1, h2, h3 {
    font-weight: 300;
    margin: 0;
    color: rgb(195, 195, 205);
    font-family: 'Cascadia Mono', sans-serif;
}

p {
  color: rgb(195, 195, 205);
  padding: 1rem;
  font-family: 'Cascadia Mono', sans-serif;
}
label {
    font-family: 'Cascadia Mono', sans-serif;
    font-size: 1rem;
    align-self: flex-end;
    color: rgb(195, 195, 205);
}
.container input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1.25rem;
  border-radius: 1rem;
  appearance: textfield;
  background: hsl(240, 16%, 12%);
  border: 1px solid hsl(240, 12%, 20%);
  color: rgb(195, 195, 205);
  font-family: 'Cascadia Mono';
}
input:focus {
    border: 1px solid #557;
    outline: none;
}

.container input[type="submit"] {
  grid-column: span 6;
  max-width: 100%;
  background-color: #575;
  border-color: #797;
  color: #9d9;
  transition-duration: 0.2s;
}

.container input[type="submit"]:hover {
  cursor: pointer;
  filter: brightness(1.1);
}
#result {
  margin: 2rem 1rem 0 1rem;
  visibility: hidden;
}

#bac {
  padding: 0;
}
footer {
  color: rgb(195, 195, 205);
  font-family: 'Cascadia Mono';
  text-align: center;
}

footer a {
  color: rgb(195, 195, 205);
}

footer a:hover {
  color: #557;
}

@media (max-width: 720px) {
  .container {
    max-width: 540px;
    width: 100%;
  }
}

@media (max-width: 580px) {
  .container {
    max-width: 360px;
    width: 100%;
  }
}

@media (max-width: 440px) {
  .container {
    max-width: 260px;
    width: 100%;
    height:max-content;
  }
    h1 {
    font-size: 1.25rem;
    font-weight: 500;
  }

  .container input {
    grid-column: span 2;
  }

  .container h3, input, .container label:has(+ input[type="radio"]){
    font-size: 1.1rem;
  }
}

@media (prefers-color-scheme: light) {
  body {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Crect width='60' height='60' fill='%23eeeeff'/%3E%3Crect x='0' y='59' width='60' height='1' fill='%23e4e4f4'/%3E%3Crect x='59' y='0' width='1' height='60' fill='%23e4e4f4'/%3E%3C/svg%3E");
  }
  h1 {
    font-weight: 500;
  }
  h1, h2, h3, .container input, p {
    color: #446;
  }

  .container label:has(+ input[type="radio"]) {
    color: #446;
    background: hsl(240, 24%, 84%);
    border: 1px solid hsl(240, 20%, 78%);
  }

  .container label:has(+ input[type="radio"]:checked) {
    border-color: #aae;
    background-color: #99d;
    color: #446;
  }

  .container input {
    background: hsl(240, 24%, 84%);
    border: 1px solid hsl(240, 20%, 78%);
  }
  .container input:focus {
    border: 1px solid #99d;
  }

  .container input[type="submit"] {
  grid-column: span 6;
  max-width: 100%;
  background-color: #9d9;
  border-color: #aea;
  color: #575;
  transition-duration: 0.2s;
}
  ::selection {
  background: #99d;
  color: #446;
  }

  footer, footer a {
    color: #446;
  }

  footer a:hover {
    color: #99d;
  }
}