/* Witness Circles documentation site.
   Visual language: concentric rings, attestation edges, deep ink base,
   one luminous accent for a witnessed link and a muted tone for an
   unwitnessed one. No external fonts, no external assets. */

:root {
  color-scheme: dark light;

  --bg: #070c10;
  --surface: #0d151b;
  --surface-2: #121d25;
  --surface-3: #17242e;
  --line: #21323e;
  --line-strong: #334c5c;
  --text: #e7eff3;
  --muted: #9bafba;
  --accent: #5fe3c0;
  --accent-soft: #123a34;
  --accent-ink: #032019;
  --dim: #5b7684;
  --warn: #ffc978;
  --warn-soft: #33260f;
  --bad: #ff9b8f;
  --bad-soft: #3a1b18;

  --ring-witnessed: var(--accent);
  --ring-unwitnessed: var(--dim);

  --radius: 14px;
  --radius-sm: 8px;
  --shell: 1180px;
  --prose: 74ch;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f5f8f9;
    --surface: #ffffff;
    --surface-2: #eef3f5;
    --surface-3: #e4ecef;
    --line: #d2dee3;
    --line-strong: #a9bcc5;
    --text: #0a1317;
    --muted: #47595f;
    --accent: #0a6a58;
    --accent-soft: #dcf1eb;
    --accent-ink: #ffffff;
    --dim: #7b929c;
    --warn: #7a4c00;
    --warn-soft: #fdf0d9;
    --bad: #97231a;
    --bad-soft: #fbe3e0;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f8f9;
  --surface: #ffffff;
  --surface-2: #eef3f5;
  --surface-3: #e4ecef;
  --line: #d2dee3;
  --line-strong: #a9bcc5;
  --text: #0a1317;
  --muted: #47595f;
  --accent: #0a6a58;
  --accent-soft: #dcf1eb;
  --accent-ink: #ffffff;
  --dim: #7b929c;
  --warn: #7a4c00;
  --warn-soft: #fdf0d9;
  --bad: #97231a;
  --bad-soft: #fbe3e0;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

/* Concentric ring texture behind the page, purely decorative. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 0%, color-mix(in srgb, var(--accent) 9%, transparent) 0, transparent 42%),
    repeating-radial-gradient(circle at 50% -8%, transparent 0 118px, color-mix(in srgb, var(--line) 55%, transparent) 118px 119px);
  opacity: 0.75;
}

body > * {
  position: relative;
  z-index: 1;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

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

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5rem 0;
}

/* ---------- layout ---------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.6rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0;
  font-weight: 650;
  z-index: 60;
}

.skip-link:focus {
  left: 0;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 4rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

.brand svg {
  width: 30px;
  height: 30px;
  flex: none;
}

.brand small {
  display: block;
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-toggle,
.icon-button {
  font: inherit;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
}

.nav-toggle:hover,
.icon-button:hover {
  border-color: var(--line-strong);
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  gap: 0.15rem;
  flex-wrap: wrap;
  align-items: center;
  width: 100%;
  padding-bottom: 0.6rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--surface-2);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: var(--accent-soft);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-block;
  }
  .site-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.1rem;
    padding-bottom: 0.9rem;
  }
  .site-nav[data-open="true"] {
    display: flex;
  }
  .site-nav a {
    padding: 0.6rem 0.7rem;
  }
}

/* ---------- search ---------- */

.search {
  position: relative;
  flex: 1 1 14rem;
  min-width: 10rem;
  max-width: 22rem;
}

.search input {
  width: 100%;
  font: inherit;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
}

.search input::placeholder {
  color: var(--muted);
}

.search-results {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.4rem;
  margin: 0;
  list-style: none;
  box-shadow: 0 18px 40px rgb(0 0 0 / 35%);
}

.search-results:empty {
  display: none;
}

.search-results li a,
.search-results li span {
  display: block;
  padding: 0.5rem 0.6rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
}

.search-results li a:hover,
.search-results li a:focus-visible {
  background: var(--surface-2);
}

.search-results strong {
  display: block;
  font-size: 0.9rem;
}

.search-results em {
  display: block;
  font-style: normal;
  font-size: 0.78rem;
  color: var(--muted);
}

@media (min-width: 861px) {
  .search {
    order: 3;
  }
}

@media (max-width: 860px) {
  .search {
    flex: 1 1 100%;
    max-width: none;
    order: 3;
  }
  .header-tools {
    order: 2;
  }
}

/* ---------- page frame ---------- */

main {
  display: block;
  padding-bottom: 4rem;
}

.page-head {
  padding: 2.75rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 650;
}

h1 {
  font-size: clamp(1.9rem, 1.2rem + 2.6vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
}

h2 {
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 2.6rem 0 0.8rem;
  scroll-margin-top: 5.5rem;
}

h3 {
  font-size: 1.08rem;
  margin: 1.8rem 0 0.5rem;
  scroll-margin-top: 5.5rem;
}

h4 {
  font-size: 0.95rem;
  margin: 1.3rem 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

p,
li {
  max-width: var(--prose);
}

.lede {
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 62ch;
}

.with-aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}

@media (min-width: 1000px) {
  .with-aside {
    grid-template-columns: minmax(0, 1fr) 15rem;
  }
  .page-aside {
    order: 2;
  }
}

.page-aside {
  align-self: start;
  position: sticky;
  top: 5.5rem;
  font-size: 0.86rem;
}

.page-aside h2 {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.6rem;
}

.page-aside ol {
  list-style: none;
  margin: 0;
  padding: 0 0 0 0.85rem;
  border-left: 1px solid var(--line);
}

.page-aside li {
  margin: 0 0 0.15rem;
}

.page-aside a {
  color: var(--muted);
  text-decoration: none;
  display: block;
  padding: 0.15rem 0;
}

.page-aside a:hover {
  color: var(--accent);
}

/* ---------- blocks ---------- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  margin: 1.25rem 0;
}

.grid p,
.grid li,
.card p,
.card li {
  max-width: none;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

.stat b {
  display: block;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
}

.note,
.warn,
.bad {
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-left-color: var(--accent);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.1rem;
  margin: 1.25rem 0;
}

.note p:first-child,
.warn p:first-child,
.bad p:first-child {
  margin-top: 0;
}

.note p:last-child,
.warn p:last-child,
.bad p:last-child {
  margin-bottom: 0;
}

.warn {
  border-left-color: var(--warn);
  background: var(--warn-soft);
}

.bad {
  border-left-color: var(--bad);
  background: var(--bad-soft);
}

.scroll-x {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin: 1.25rem 0;
  max-width: 100%;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

th,
td {
  text-align: left;
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

thead th {
  background: var(--surface-2);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

tbody tr:last-child td,
tbody tr:last-child th {
  border-bottom: 0;
}

td.num,
th.num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0.08em 0.35em;
  overflow-wrap: anywhere;
}

pre {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
  overflow-wrap: normal;
}

.hex {
  font-family: var(--mono);
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}

/* numbered normative rules */

.rules {
  list-style: none;
  counter-reset: rule;
  margin: 1.25rem 0;
  padding: 0;
}

.rules > li {
  counter-increment: rule;
  position: relative;
  padding: 0.55rem 0 0.55rem 3.3rem;
  border-bottom: 1px solid var(--line);
  max-width: none;
}

.rules > li:last-child {
  border-bottom: 0;
}

.rules > li::before {
  content: attr(data-rule);
  position: absolute;
  left: 0;
  top: 0.55rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 0.05rem 0.45rem;
}

dl.terms {
  margin: 1.25rem 0;
}

dl.terms dt {
  font-weight: 650;
  margin-top: 1rem;
}

dl.terms dd {
  margin: 0.2rem 0 0;
  color: var(--muted);
  max-width: var(--prose);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
}

.checklist li {
  position: relative;
  padding-left: 1.9rem;
  margin-bottom: 0.5rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.55rem;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  border: 2px solid var(--accent);
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.pill {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  background: var(--surface);
}

.pill.on {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--accent);
  background: var(--accent-soft);
}

.pill.off {
  border-style: dashed;
}

.button {
  display: inline-block;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  padding: 0.6rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
  font-family: inherit;
}

.button.ghost {
  background: transparent;
  color: var(--accent);
}

.button:hover {
  filter: brightness(1.08);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.5rem 0;
}

/* ---------- hero ---------- */

.hero {
  display: grid;
  gap: 2rem;
  align-items: center;
  padding: 3rem 0 2rem;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 940px) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }
}

.figure {
  margin: 1.75rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1rem;
}

.figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.figure figcaption {
  font-size: 0.84rem;
  color: var(--muted);
  margin-top: 0.75rem;
  padding: 0 0.25rem;
}

/* shared diagram classes */

.d-ring {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1.5;
}

.d-ring-accent {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.5;
}

.d-edge {
  stroke: var(--ring-unwitnessed);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 5 5;
}

.d-edge-on {
  stroke: var(--ring-witnessed);
  stroke-width: 2.5;
  fill: none;
  stroke-dasharray: none;
}

.d-node {
  fill: var(--surface-3);
  stroke: var(--ring-unwitnessed);
  stroke-width: 2;
}

.d-node-on {
  fill: var(--accent-soft);
  stroke: var(--ring-witnessed);
  stroke-width: 2.5;
}

.d-core {
  fill: var(--surface-2);
  stroke: var(--line-strong);
  stroke-width: 1.5;
}

.d-label {
  fill: var(--text);
  font-family: var(--sans);
  font-size: 13px;
}

.d-label-muted {
  fill: var(--muted);
  font-family: var(--sans);
  font-size: 12px;
}

.d-label-mono {
  fill: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.d-accent-text {
  fill: var(--accent);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 650;
}

/* ---------- simulator ---------- */

.tool {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.tool-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 900px) {
  .tool-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}

.field {
  display: block;
  margin-bottom: 0.9rem;
}

.field > span {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

input[type="text"],
input[type="number"],
select,
textarea {
  font: inherit;
  font-size: 0.9rem;
  width: 100%;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.6rem;
}

textarea {
  font-family: var(--mono);
  font-size: 0.8rem;
  min-height: 5.5rem;
  resize: vertical;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.member-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.member {
  display: grid;
  gap: 0.5rem;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  padding: 0.75rem;
  margin-bottom: 0.6rem;
  max-width: none;
}

@media (min-width: 560px) {
  .member {
    grid-template-columns: 2.2rem minmax(0, 1fr) minmax(0, 1fr) auto;
  }
}

.member .slot {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 999px;
  text-align: center;
  padding: 0.2rem 0;
  background: var(--accent-soft);
}

.member .field {
  margin-bottom: 0;
}

.member .drop {
  font: inherit;
  font-size: 0.8rem;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 0.42rem 0.6rem;
  cursor: pointer;
}

.member .drop:hover {
  color: var(--bad);
  border-color: var(--bad);
}

.verdict {
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  margin-bottom: 1rem;
}

.verdict[data-state="valid"] {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  background: var(--accent-soft);
}

.verdict[data-state="invalid"] {
  border-color: color-mix(in srgb, var(--bad) 55%, transparent);
  background: var(--bad-soft);
}

.verdict b {
  display: block;
  font-size: 1rem;
}

.verdict code {
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
}

.kv {
  margin: 0;
  font-size: 0.86rem;
}

.kv div {
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.32rem 0;
  border-bottom: 1px solid var(--line);
}

.kv div:last-child {
  border-bottom: 0;
}

.kv dt {
  color: var(--muted);
  flex: none;
}

.kv dd {
  margin: 0;
  text-align: right;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  font-size: 0.86rem;
}

.steps li {
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-left-color: var(--dim);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.5rem;
  background: var(--surface-2);
  max-width: none;
}

.steps li[data-ok="true"] {
  border-left-color: var(--accent);
}

.steps li[data-ok="false"] {
  border-left-color: var(--bad);
}

.steps b {
  display: block;
}

.steps span {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.tool-note {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 1rem;
}

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

.tight {
  margin-top: 0;
}

.tight-top {
  margin-top: 0.5rem;
}

.block-svg {
  display: block;
  width: 100%;
  height: auto;
}

table caption.table-note {
  text-align: left;
  padding: 0.6rem 0.85rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.inline-check {
  text-transform: none;
  letter-spacing: 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.inline-check input {
  width: auto;
  accent-color: var(--accent);
}

.js-only {
  display: none;
}

.js .js-only {
  display: block;
}

.js .no-js {
  display: none;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 2rem 0 3rem;
  font-size: 0.86rem;
}

.footer-meta {
  display: grid;
  gap: 0.6rem 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  margin: 0 0 1.5rem;
}

.footer-meta div {
  border-top: 1px solid var(--line);
  padding-top: 0.5rem;
}

.footer-meta dt {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-meta dd {
  margin: 0.1rem 0 0;
  overflow-wrap: anywhere;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  padding: 0;
  margin: 0 0 1rem;
  list-style: none;
}

.footer-note {
  color: var(--muted);
  max-width: 70ch;
}

@media print {
  .site-header,
  .page-aside,
  .search,
  .tool {
    display: none;
  }
  body::before {
    display: none;
  }
}