:root {
  color-scheme: light dark;
  --max-width: 1180px;
  --grid-cell-target: 48px;
  --page-gutter: clamp(1.25rem, 4vw, 4rem);
  --section-space: clamp(5rem, 10vw, 9rem);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --font-display: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --font-body: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6,
.brand {
  font-family: var(--font-display);
}

img, video, svg { display: block; max-width: 100%; }

a { color: inherit; }

.skip-link {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 100;
  padding: 0.8rem 1rem;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-110%);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

.container {
  width: min(100%, calc(var(--max-width) + 2 * var(--page-gutter)));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.eyebrow {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.display {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(3.25rem, 7.4vw, 6.2rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 1.1;
  text-wrap: balance;
}

.section-title {
  margin: 0;
  font-size: clamp(2.25rem, 4.5vw, 4.2rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 1;
  text-wrap: balance;
}

.lede {
  max-width: 62ch;
  margin: 1.5rem 0 0;
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
}

.section-dark,
.section-light { position: relative; overflow: hidden; }

.section-dark {
  padding-block: clamp(7rem, 13vw, 12rem);
  background: var(--ink);
  color: var(--white);
}

.section-light {
  padding-block: var(--section-space);
  background: var(--paper);
  color: var(--ink);
}

.section-index {
  align-self: start;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-link {
  display: inline-flex;
  align-self: flex-start;
  gap: 0.7rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-origin: content-box;
  background-position: 0 1.2em;
  background-size: 0% 1px;
  transition: background-size 380ms var(--ease-out);
}

.text-link::after { content: "↗"; }
.text-link.internal::after { content: "→"; }
.text-link:hover { background-size: 100% 1px; }

@media (max-width: 700px) {
  .display { font-size: clamp(2.8rem, 15vw, 5rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .skip-link { transition-duration: 100ms; }
  .text-link { transition-duration: 0ms; }
}