:root {
  --font-body: Georgia, "Times New Roman", serif;
  --text-small: 0.875rem;
  --text-body: clamp(1.0625rem, 1rem + 0.25vw, 1.25rem);
  --text-lead: clamp(1.375rem, 1.125rem + 1vw, 2rem);
  --text-heading: clamp(2rem, 1.5rem + 2vw, 3.5rem);
  --text-display: clamp(3rem, 1.5rem + 5vw, 7rem);
  --leading-body: 1.6;
  --leading-heading: 1.15;
  --leading-display: 1.05;
  --space-1: calc(var(--baseline) * 0.25);
  --space-2: calc(var(--baseline) * 0.5);
  --space-3: var(--baseline);
  --space-4: calc(var(--baseline) * 1.5);
  --space-5: calc(var(--baseline) * 2);
  --space-6: calc(var(--baseline) * 3);
  --gutter: clamp(1.25rem, 0.75rem + 2vw, 3rem);
  --page-width: 80rem;
  --measure-body: 65ch;
  --baseline: calc(var(--text-body) * var(--leading-body));
  --grid-columns: 4;
  --grid-gap: var(--space-3);
}

@media (min-width: 60rem) {
  :root {
    --grid-columns: 12;
  }
}
h1,
h2,
h3 {
  margin: 0;
  font-weight: 400;
  line-height: var(--leading-heading);
  text-wrap: balance;
}

p,
ul {
  margin: 0;
}

h1,
.type-display {
  font-size: var(--text-display);
  line-height: var(--leading-display);
}

h2,
.type-heading {
  font-size: var(--text-heading);
}

h3 {
  font-size: var(--text-lead);
}

.type-lead {
  max-inline-size: 45ch;
  font-size: var(--text-lead);
  line-height: 1.4;
}

.type-small {
  font-size: var(--text-small);
}

.prose {
  max-inline-size: var(--measure-body);
}

.prose > * + * {
  margin-block-start: var(--space-3);
}

.prose > * + :is(h2, h3) {
  margin-block-start: var(--space-5);
}

.specimen > * + * {
  margin-block-start: var(--space-6);
}

.specimen > header > * + * {
  margin-block-start: var(--space-3);
}

body:has(#show-grid) {
  position: relative;
  min-block-size: 100svh;
}

.grid-controls {
  position: fixed;
  inset-inline-end: 1rem;
  inset-block-end: 1rem;
  z-index: 101;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  min-inline-size: 0;
  max-inline-size: calc(100% - 2rem);
  margin: 0;
  padding: 0.5rem 1rem;
  background: white;
  color: black;
  border: 1px solid #ccc;
  border-radius: 0.25rem;
  font: 0.875rem/1.5 system-ui, sans-serif;
}

.grid-controls label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

body:has(#show-grid:checked)::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background-image: linear-gradient(to bottom, rgba(0, 100, 255, 0.2) 1px, transparent 1px);
  background-size: 100% var(--baseline);
}

.column-overlay {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 99;
  pointer-events: none;
}

body:has(#show-columns:checked) .column-overlay {
  display: block;
}

.column-overlay__grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), minmax(0, 1fr));
  column-gap: var(--grid-gap);
  block-size: 100%;
  max-inline-size: var(--page-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.column-overlay__grid > span {
  background: rgba(220, 60, 120, 0.08);
  border-inline: 1px solid rgba(220, 60, 120, 0.2);
}

.column-overlay__grid > span:nth-child(n+5) {
  display: none;
}

@media (min-width: 60rem) {
  .column-overlay__grid > span:nth-child(n+5) {
    display: block;
  }
}
.layout-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), minmax(0, 1fr));
  gap: var(--grid-gap);
}

.layout-grid > * {
  min-inline-size: 0;
  grid-column: 1/-1;
}

.col-1 {
  grid-column: span 1;
}

.col-2 {
  grid-column: span 2;
}

.col-3 {
  grid-column: span 3;
}

.col-4 {
  grid-column: span 4;
}

.grid-reference--desktop {
  display: none;
}

.grid-reference > * + * {
  margin-block-start: var(--space-5);
}

@media (min-width: 60rem) {
  .grid-reference--mobile {
    display: none;
  }
  .grid-reference--desktop {
    display: block;
  }
  .desktop-col-1 {
    grid-column: span 1;
  }
  .desktop-col-2 {
    grid-column: span 2;
  }
  .desktop-col-3 {
    grid-column: span 3;
  }
  .desktop-col-4 {
    grid-column: span 4;
  }
  .desktop-col-5 {
    grid-column: span 5;
  }
  .desktop-col-6 {
    grid-column: span 6;
  }
  .desktop-col-7 {
    grid-column: span 7;
  }
  .desktop-col-8 {
    grid-column: span 8;
  }
  .desktop-col-9 {
    grid-column: span 9;
  }
  .desktop-col-10 {
    grid-column: span 10;
  }
  .desktop-col-11 {
    grid-column: span 11;
  }
  .desktop-col-12 {
    grid-column: span 12;
  }
}
.grid-example {
  margin-block-start: var(--space-3);
}

.grid-example > * {
  display: grid;
  place-items: center;
  min-block-size: calc(var(--baseline) * 3);
  padding: var(--space-2) 0.125rem;
  background: rgba(0, 100, 255, 0.08);
  border: 1px solid rgba(0, 100, 255, 0.25);
  font: 0.875rem/1.5 system-ui, sans-serif;
}

.specimen-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-block-end: var(--space-5);
  border-block-end: 1px solid #ccc;
  font: 0.875rem/1.5 system-ui, sans-serif;
}

.specimen-tabs a {
  padding-block: var(--space-2);
  border-block-end: 2px solid transparent;
  color: inherit;
  text-decoration: none;
}

.specimen-tabs a[aria-current=page] {
  border-block-end-color: currentColor;
  font-weight: 600;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
}

main {
  max-inline-size: var(--page-width);
  margin-inline: auto;
  padding: var(--space-5) var(--gutter);
}