:root {
  --blue: #5271ff;
  --light-blue: #d9e0ff;
  --white: #f8f8f8;
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  font: 62.5%/1.5 -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial, sans-serif;
  background: var(--white);
  color: #000;
}

body {
  display: flex;
  flex-direction: column;
  max-width: 75rem;
  height: 100%;
  margin: 0 auto;
  padding: 0 1.2rem;
  font-size: 1.7rem;
}

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  margin: 0;
  font-size: 2.2rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.7rem;
}

h4 {
  font-size: 1.6rem;
}

p {
  margin: 1em 0;
}

ol,
ul {
  padding-left: 1.5em;
}

li + li {
  margin-top: .5em;
}

dt {
  margin-top: 1em;
  font-weight: 600;
}

dd {
  margin-left: .8em;
}

a {
  color: var(--blue);
  font-weight: 600;
}

button,
.button,
.buttons a {
  display: inline-block;
  min-width: 25rem;
  margin: 0;
  border: 0;
  border-radius: 8px;
  padding: .7em 1em;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

input[type='checkbox'] {
  width: 20px;
  height: 20px;
}

label > * {
  vertical-align: middle;
}

code {
  padding: 1px 2px;
  font-family: SFMono-Regular, Consolas, Liberation Mono, monospace;
  background: #e8e8e8;
}

b,
kbd {
  font-family: inherit;
  font-weight: 600;
}

header,
footer {
  margin: 0 -1.2rem;
  background: var(--blue);
  color: var(--white);
}

header {
  padding: .5rem 1rem;
}

header,
header h1 {
  display: flex;
  align-items: center;
  column-gap: .4em;
}

header img {
  height: 2em;
}

footer {
  padding: 1em .5em;
}

footer ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .3em 1.5em;
  margin: 0;
  padding-left: 0;
}

footer li {
  list-style: none;
  margin-top: 0;
  white-space: nowrap;
}

footer a {
  color: white;
}

main {
  flex: 1;
  padding-bottom: 1em;
}

strong {
  text-transform: uppercase;
}

.buttons {
  list-style: none;
  margin: 1.5em 0;
  padding: 0;
  text-align: center;
}

.buttons li {
  margin-top: 1em;
}

.warning {
  margin: .8em 0;
  padding: .01em 1em;
  background: #dc2626;
  color: #f8f8f8;
  font-weight: 600;
}

.warning a {
  color: #f8f8f8;
}

.notice {
  margin: .8em 0;
  padding: .01em 1em;
  background: var(--light-blue);
}