:root {
  --ink: #111513;
  --paper: #f7f8f4;
  --field: #dfe3df;
  --shadow: #747b76;
  --line: #68706b;
  --muted: #4f5652;
  --stamp: #9f3028;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 4px;
}

.site-page {
  display: grid;
  place-items: center;
  min-height: 100svh;
  overflow-x: hidden;
  padding: 28px;
  background:
    linear-gradient(90deg, rgba(26, 34, 30, 0.16) 1px, transparent 1px),
    linear-gradient(0deg, rgba(26, 34, 30, 0.16) 1px, transparent 1px),
    var(--field);
  background-size: 42px 42px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  transform: translateY(-160%);
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 0.7rem 1rem;
  font-weight: 700;
}

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

.dossier-shell {
  width: min(980px, 100%);
}

.dossier {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  box-shadow: 18px 18px 0 var(--shadow);
  padding: 28px;
}

.dossier-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  text-transform: uppercase;
}

.dossier-header img {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
}

.dossier-header div {
  display: grid;
  gap: 0.15rem;
}

.dossier-header strong {
  color: var(--ink);
  font-size: 1rem;
}

.dossier-header span,
.site-meta,
.error-code {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.file-stamp {
  position: absolute;
  top: 34px;
  right: 28px;
  max-width: 190px;
  border: 2px solid var(--stamp);
  padding: 0.35rem 0.5rem;
  color: var(--stamp);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  transform: rotate(5deg);
}

.dossier h1 {
  max-width: 820px;
  margin: 96px 0 0;
  font-size: clamp(3.8rem, 6.5vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.dossier > p:not(.error-code) {
  max-width: 680px;
  margin: 1.4rem 0 0;
  color: #343936;
  font-size: 1.08rem;
}

.dossier-action {
  display: inline-flex;
  justify-content: center;
  margin-top: 2.1rem;
  border: 1px solid var(--ink);
  padding: 0.8rem 1rem;
  font-weight: 700;
  text-transform: uppercase;
}

.dossier-action:hover {
  background: var(--ink);
  color: var(--paper);
}

.site-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 34px;
  color: var(--muted);
}

.error-shell {
  width: min(860px, 100%);
}

.error-code {
  margin: 72px 0 0;
  color: var(--stamp);
}

.error-dossier h1 {
  max-width: 720px;
  margin-top: 0.75rem;
}

@media (max-width: 900px) {
  .site-page {
    padding: 22px;
  }

  .dossier {
    box-shadow: 12px 12px 0 var(--shadow);
  }

  .dossier h1 {
    font-size: 3.8rem;
  }
}

@media (max-width: 680px) {
  .site-page {
    align-items: start;
    padding: 22px 14px;
  }

  .dossier {
    padding: 22px;
    box-shadow: 8px 8px 0 var(--shadow);
  }

  .dossier-header img {
    width: 52px;
    height: 52px;
  }

  .file-stamp {
    position: static;
    display: inline-block;
    margin-top: 32px;
  }

  .dossier h1 {
    margin-top: 48px;
    font-size: 2.45rem;
  }

  .error-code {
    margin-top: 48px;
  }

  .dossier-action {
    width: 100%;
  }

  .site-meta {
    flex-direction: column;
    margin-top: 26px;
  }
}

@media (max-width: 380px) {
  .dossier h1 {
    font-size: 2.1rem;
  }
}