:root {
  color-scheme: light;
  --color-sky: #4ccbf0;
  --color-gold: #eddc4f;
  --color-ink: #191919;
  --color-stone: #e9e1d5;
  --color-cool: #dce5e7;
  --page-gutter: clamp(1.25rem, 4vw, 4rem);
  --frame-border: clamp(0.25rem, 0.5vw, 0.5rem);
  font-family: ui-rounded, "Arial Rounded MT Bold", "Avenir Next", Avenir,
    "Segoe UI", Helvetica, Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

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

html {
  background: var(--color-stone);
}

body {
  min-width: 20rem;
  margin: 0;
  color: var(--color-ink);
  background: var(--color-stone);
}

.poster {
  min-block-size: 100vh;
  min-block-size: 100svh;
  padding: var(--page-gutter);
  display: grid;
}

.poster__frame {
  position: relative;
  isolation: isolate;
  min-block-size: calc(100vh - (2 * var(--page-gutter)));
  min-block-size: calc(100svh - (2 * var(--page-gutter)));
  padding: clamp(1.25rem, 4vw, 4rem);
  display: grid;
  grid-template-rows: auto 1fr;
  border: var(--frame-border) solid var(--color-ink);
  background: var(--color-cool);
  box-shadow: clamp(0.6rem, 1.5vw, 1.25rem) clamp(0.6rem, 1.5vw, 1.25rem) 0
    var(--color-sky);
}

.poster__frame::before,
.poster__frame::after {
  position: absolute;
  z-index: -1;
  content: "";
  pointer-events: none;
}

.poster__frame::before {
  inset: 0 0 auto auto;
  inline-size: clamp(4.5rem, 14vw, 13rem);
  block-size: clamp(1rem, 2.5vw, 2rem);
  background: var(--color-gold);
  border-block-end: var(--frame-border) solid var(--color-ink);
  border-inline-start: var(--frame-border) solid var(--color-ink);
}

.poster__frame::after {
  inset: auto auto 0 0;
  inline-size: clamp(1rem, 2.5vw, 2rem);
  block-size: clamp(4.5rem, 14vw, 13rem);
  background: var(--color-sky);
  border-block-start: var(--frame-border) solid var(--color-ink);
  border-inline-end: var(--frame-border) solid var(--color-ink);
}

.brand {
  width: fit-content;
  margin: 0;
  padding: 0.45em 0.7em;
  color: var(--color-stone);
  background: var(--color-ink);
  font-size: clamp(0.9rem, 1.5vw, 1.15rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
}

.message {
  align-self: center;
  margin-block: clamp(3rem, 10vh, 8rem);
  padding-inline: clamp(0rem, 4vw, 4rem);
}

.message h1 {
  max-inline-size: 8ch;
  margin: 0;
  font-size: clamp(4rem, 15vw, 13rem);
  font-weight: 900;
  letter-spacing: -0.085em;
  line-height: 0.78;
}

.message h1 > span {
  display: block;
  width: fit-content;
}

.message__accent {
  margin-block-start: 0.13em;
  margin-inline-start: clamp(0rem, 9vw, 8rem);
  padding: 0.06em 0.12em 0.11em;
  background: var(--color-gold);
  box-shadow: 0.06em 0.06em 0 var(--color-ink);
  transform: rotate(-1.5deg);
}

.message > p:not(.error-code) {
  max-inline-size: 31rem;
  margin: clamp(2rem, 5vw, 4rem) 0 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1rem, 2.4vw, 1.35rem);
  font-weight: 650;
  line-height: 1.5;
}

.message--not-found {
  display: grid;
  justify-items: start;
}

.message--not-found h1 {
  max-inline-size: 10ch;
  font-size: clamp(3.5rem, 12vw, 10rem);
  line-height: 0.88;
}

.error-code {
  margin: 0 0 1rem;
  padding: 0.25em 0.5em;
  background: var(--color-gold);
  border: 0.2rem solid var(--color-ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1;
}

.home-link {
  margin-block-start: 2rem;
  padding: 0.75rem 1rem;
  color: var(--color-ink);
  background: var(--color-sky);
  border: 0.2rem solid var(--color-ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 800;
  line-height: 1.2;
  text-underline-offset: 0.18em;
}

.home-link:hover {
  background: var(--color-gold);
}

.home-link:focus-visible {
  outline: 0.25rem solid var(--color-ink);
  outline-offset: 0.25rem;
}

::selection {
  color: var(--color-ink);
  background: var(--color-gold);
}

@media (max-width: 30rem) {
  .poster__frame {
    padding: 1.25rem;
  }

  .message {
    margin-block: 3rem;
  }

  .message h1 {
    font-size: clamp(3.75rem, 21vw, 6rem);
  }

  .message__accent {
    margin-inline-start: 0.25em;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}

@media (forced-colors: active) {
  .poster__frame,
  .brand,
  .message__accent,
  .error-code,
  .home-link {
    border: 0.2rem solid CanvasText;
    box-shadow: none;
    forced-color-adjust: auto;
  }
}