:root {
  --ink: #111111;
  --ink-secondary: #9a9a9a;
  --paper: #ffffff;

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter",
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;

  --measure: 84rem;
  --column: 17rem;
  --gutter: 4rem;

  --wall: calc(4 * var(--column) + 3 * var(--gutter));

  --rise: 5rem;
  --type-title: 0.875rem;
  --type-body: 0.75rem;
  --type-small: 0.625rem;
  --tracking: -0.5px;

  --lead: 600ms;
  --stagger: 240ms;
  --settle: 1000ms;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--type-body);
  line-height: 1.55;
  letter-spacing: var(--tracking);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 7vh 2rem 6vh;
}

.reveal {
  animation: appear var(--settle) cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: calc(var(--lead) + var(--step) * var(--stagger));
}

@keyframes appear {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.masthead h1 {
  margin: 0;
  font-size: var(--type-title);
  font-weight: 600;
  color: var(--ink);
}

.manifesto {
  flex: 1;
  width: min(var(--wall), 100%);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(4, var(--column));
  justify-content: space-between;
  column-gap: var(--gutter);
  row-gap: 4rem;
  align-content: center;
  align-items: start;

  padding: 4rem 0 calc(4rem + 2 * var(--rise));
}

.movement p {
  margin: 0 0 1.8rem;
  line-height: 1.8;
  text-wrap: pretty;
}

.movement p:last-child {
  margin-bottom: 0;
}

.colophon {
  width: min(var(--wall), 100%);
  margin-inline: auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
}

.sign-off {
  display: flex;
  gap: 4rem;
}

.signed {
  margin: 0;
}

.signed figcaption {
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  letter-spacing: normal;
}

.role {
  display: block;
  font-size: var(--type-small);
  color: var(--ink-secondary);
}

.mark {
  display: block;
  width: var(--w);
  height: 2.8125rem;
  color: var(--ink);

  stroke-dasharray: 1 1;
}

.contact {
  font-style: normal;
}

.contact button {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  font-family: var(--font-mono);
  letter-spacing: normal;
  color: var(--ink-secondary);
  cursor: pointer;
  transition: color 150ms ease-out, opacity 150ms ease-out;
}

.contact button.swapping {
  opacity: 0;
}

.contact button:hover {
  color: var(--ink);
}

.contact button:focus-visible {
  color: var(--ink);
  outline: 1px solid var(--ink);
  outline-offset: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .contact button {
    animation: none;
    transition: none;
  }

  .reveal {
    opacity: 1;
  }
}

@media (max-width: 1271px) {
  :root {
    --gutter: 5rem;
    --wall: calc(2 * var(--column) + var(--gutter));
    --rise: 0rem;
  }

  .page {
    min-height: 0;
    padding: 7vh 2rem 6vh;
  }

  .manifesto {
    grid-template-columns: repeat(2, var(--column));
    align-content: start;
  }
}

@media (max-width: 640px) {
  :root {
    --wall: var(--column);
  }

  .page {
    padding: 8vh 1.5rem 10vh;
  }

  .manifesto {
    grid-template-columns: minmax(0, var(--column));
    row-gap: 3rem;
    padding: 3rem 0;
  }

  .colophon {
    flex-direction: column;
    align-items: flex-start;
    gap: 3rem;
  }

  .sign-off {
    gap: 3rem;
  }
}