:root {
  --color-dark: #252525;
  --color-faded: #858585;
  --color-light: #efefef;
  --color-primary: #478893;
  --size-step-0: clamp(1rem, calc(0.96rem + 0.22vw), 1.13rem);
  --size-step-1: clamp(1.25rem, calc(1.16rem + 0.43vw), 1.5rem);
  --size-step-2: clamp(1.56rem, calc(1.41rem + 0.76vw), 2rem);
  --size-step-3: clamp(1.95rem, calc(1.71rem + 1.24vw), 2.66rem);
  --size-step-4: clamp(2.44rem, calc(2.05rem + 1.93vw), 3.55rem);
}

body {
  background: var(--color-light);
  color: var(--color-dark);
  padding: 2em;
  font-family: Georgia, serif;
  font-size: var(--size-step-0);
  line-height: 1.7;
}

a {
  color: currentColor;
  -webkit-text-decoration-color: var(--color-primary);
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 0.3ex;
  text-underline-offset: 0.3ex;
}

h1,
h2,
h3 {
  font-family: Inter, sans-serif;
  font-weight: 800;
  line-height: 1.1;
  text-wrap: balance;
}

h1 {
  font-size: var(--size-step-4);
}

h2 {
  font-size: var(--size-step-2);
}

h3 {
  font-size: var(--size-step-2);
}

ul,
ol {
  -webkit-padding-start: 1em;
  padding-inline-start: 1em;
}

blockquote {
  -webkit-padding-start: 1em;
  padding-inline-start: 1em;
  -webkit-border-start: 0.3em solid;
  border-inline-start: 0.3em solid;
  font-style: italic;
  font-size: var(--size-step-1);
}

.flow > * + * {
  -webkit-margin-before: var(--flow-space, 1em);
  margin-block-start: var(--flow-space, 1em);
}

:is(h1, h2, h3, blockquote) {
  --flow-space: 1.5em;
}

:is(h1, h2, h3) + * {
  --flow-space: 0.5em;
}

article {
  max-width: 65ch;
  margin-inline: auto;
}

blockquote {
  max-width: 50ch;
}

h1 {
  max-width: 50ch;
}

h2,
h3 {
  max-width: 28ch;
}

.lede {
  font-size: var(--size-step-1);
  font-style: italic;
  max-width: 50ch;
  text-wrap: balance;
}

.lede + * {
  --flow-space: 2em;
}

.timetable {
  list-style: none;
  margin: 0;
  padding: 0.5em;
  max-width: 30ch;
  border: 1px solid var(--color-dark);
}

.timetable li {
  padding: 0 0.3em;
  font-size: 1.3em;
}
.timetable li:nth-child(2n) {
  color: var(--color-light);
  background-color: var(--color-faded);
}