/* moonjson — the JSON family for MoonBit.
   A stylesheet with no dependencies: system fonts, CSS variables, and a
   theme that follows the system until a reader says otherwise. */

:root {
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SF Mono", Menlo,
    Consolas, "Liberation Mono", monospace;

  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #fbfbfe;
  --text: #191b20;
  --muted: #5b6472;
  --border: #e3e5ec;
  --border-strong: #d3d6e0;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: #eef0fe;
  --accent-text: #4338ca;
  --code-bg: #f5f6fa;
  --code-border: #e6e8f0;
  --shadow: 0 1px 2px rgb(20 22 30 / 6%), 0 8px 24px rgb(20 22 30 / 6%);
  --shadow-lg: 0 2px 4px rgb(20 22 30 / 5%), 0 16px 48px rgb(20 22 30 / 10%);

  --syn-comment: #7a828f;
  --syn-string: #0a7d5a;
  --syn-number: #b45309;
  --syn-keyword: #7c3aed;
  --syn-literal: #be185d;
  --syn-punct: #8a919e;
  --syn-attr: #0e7490;

  --danger: #b42318;
  --danger-soft: #fdf2f1;

  --radius: 14px;
  --max: 1060px;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #0e1014;
  --surface: #16191f;
  --surface-2: #1b1f27;
  --text: #e8eaef;
  --muted: #99a2b1;
  --border: #262b35;
  --border-strong: #333a46;
  --accent: #8b8cf9;
  --accent-hover: #a5a6fb;
  --accent-soft: #1d2033;
  --accent-text: #b4b6fd;
  --code-bg: #12151c;
  --code-border: #232935;
  --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 30%);
  --shadow-lg: 0 2px 4px rgb(0 0 0 / 40%), 0 16px 48px rgb(0 0 0 / 45%);

  --danger: #f2a396;
  --danger-soft: #2a1b1a;

  --syn-comment: #6f7887;
  --syn-string: #6ee7b7;
  --syn-number: #fbbf24;
  --syn-keyword: #c4b5fd;
  --syn-literal: #f9a8d4;
  --syn-punct: #7d8595;
  --syn-attr: #67e8f9;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-text);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
pre,
.mono {
  font-family: var(--font-mono);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
}

.wordmark:hover {
  text-decoration: none;
}

.wordmark .glyph {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 25%);
}

.wordmark .dim {
  color: var(--muted);
  font-weight: 500;
}

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.site-nav a {
  padding: 7px 13px;
  border-radius: 9px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 550;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--accent-soft);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--accent-text);
  background: var(--accent-soft);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
}

.icon-button:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.icon-button svg {
  width: 17px;
  height: 17px;
}

[data-theme="dark"] .icon-sun,
.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-moon {
  display: block;
}

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

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(60rem 30rem at 85% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(40rem 24rem at -5% 0%, var(--accent-soft), transparent 55%),
    var(--bg);
}

.hero .inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  padding: 84px 24px 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
}

.hero-grid .code-card {
  box-shadow: var(--shadow-lg);
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 550;
  margin-bottom: 22px;
}

.hero .eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 5.2vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 750;
  max-width: 16em;
}

.hero h1 .accent {
  background: linear-gradient(120deg, var(--accent), #a855f7 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lede {
  margin: 0 0 30px;
  max-width: 44em;
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  color: var(--muted);
}

.hero .lede strong {
  color: var(--text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--border-strong);
  text-decoration: none;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.install {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 10px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
}

.install .prompt {
  color: var(--syn-punct);
  user-select: none;
}

.install button {
  border: none;
  background: var(--accent-soft);
  color: var(--accent-text);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 650;
  padding: 5px 10px;
  border-radius: 7px;
  cursor: pointer;
}

.install button:hover {
  filter: brightness(0.96);
}

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 72px 0 8px;
}

section + section {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding-top: 64px;
}

.section-head {
  max-width: 46em;
  margin-bottom: 36px;
}

.section-head .kicker {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 10px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

/* ---------- verb table ---------- */

.table-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.96rem;
}

th,
td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

thead th {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-2);
  font-weight: 650;
}

tbody tr:last-child td {
  border-bottom: none;
}

td code,
th code {
  font-size: 0.92em;
}

:where(td, th) code {
  background: var(--accent-soft);
  color: var(--accent-text);
  padding: 2px 7px;
  border-radius: 6px;
  font-weight: 550;
}

:where(td, th) .plain {
  background: none;
  color: inherit;
  padding: 0;
}

/* ---------- package grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.pkg {
  display: block;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  color: var(--text);
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.pkg:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  text-decoration: none;
}

.pkg .name {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--accent-text);
}

.pkg .spec {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: var(--font-sans);
  font-weight: 550;
}

.pkg p {
  margin: 8px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- principles ---------- */

.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.principle {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.principle .num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-text);
  font-weight: 700;
  margin-bottom: 10px;
}

.principle h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.principle p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--muted);
}

/* ---------- code cards ---------- */

.code-card {
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.code-card .bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--code-border);
  background: var(--surface-2);
  font-size: 0.78rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

.code-card .bar .lang {
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.code-card .bar .spacer {
  margin-left: auto;
}

.code-card pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.7;
  tab-size: 2;
}

.copy {
  border: none;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}

.copy:hover {
  color: var(--accent-text);
  background: var(--accent-soft);
}

/* ---------- terminal ---------- */

.terminal {
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal .bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 15px;
  border-bottom: 1px solid var(--code-border);
  background: var(--surface-2);
}

.terminal .bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--border-strong);
}

.terminal .bar i:first-child {
  background: #f87171;
}

.terminal .bar i:nth-child(2) {
  background: #fbbf24;
}

.terminal .bar i:nth-child(3) {
  background: #34d399;
}

.terminal .bar .title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

.terminal pre {
  margin: 0;
  padding: 18px 20px;
  font-size: 0.86rem;
  line-height: 1.75;
  overflow-x: auto;
}

.terminal .out {
  color: var(--syn-string);
}

.terminal .cmd {
  color: var(--syn-keyword);
}

/* ---------- examples ---------- */

.example {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 28px;
}

.example .head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 22px 0;
}

.example .head .n {
  font-family: var(--font-mono);
  color: var(--accent-text);
  font-weight: 700;
  font-size: 0.9rem;
}

.example .head h3 {
  margin: 0;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.example .body {
  padding: 14px 22px 22px;
}

.example .body > p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.example .code-card {
  box-shadow: none;
  background: var(--surface-2);
}

.example .output-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}

.example .output-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.example pre.out {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--code-border);
  border-radius: 10px;
  background: var(--code-bg);
  font-size: 0.86rem;
  line-height: 1.7;
  overflow-x: auto;
}

/* ---------- prose ---------- */

.prose {
  max-width: 46em;
}

.prose h3 {
  margin: 40px 0 12px;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.prose h3:first-child {
  margin-top: 0;
}

.prose p {
  margin: 0 0 16px;
  color: var(--muted);
}

.prose p code,
.prose li code {
  background: var(--accent-soft);
  color: var(--accent-text);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.9em;
}

.prose ul {
  margin: 0 0 16px;
  padding-left: 22px;
  color: var(--muted);
}

.prose li {
  margin-bottom: 6px;
}

.prose .code-card,
.prose .table-card {
  margin: 20px 0 24px;
}

.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 20px 0;
  color: var(--text);
  font-size: 0.95rem;
}

.note .label {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 4px;
}

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

.docs-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.docs-toc {
  position: sticky;
  top: 84px;
  font-size: 0.9rem;
}

.docs-toc .title {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.docs-toc a {
  display: block;
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--muted);
  border-left: 2px solid transparent;
}

.docs-toc a:hover,
.docs-toc a.active {
  color: var(--accent-text);
  background: var(--accent-soft);
  text-decoration: none;
}

.docs-body section {
  padding: 0;
  margin: 0 0 56px;
  border: none;
}

.docs-body section + section {
  border: none;
  margin: 0 0 56px;
  padding: 0;
}

@media (max-width: 860px) {
  .docs-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .docs-toc {
    position: static;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .docs-toc .title {
    display: none;
  }
}

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

.site-footer {
  margin-top: 96px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.site-footer .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 36px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .links {
  display: flex;
  gap: 20px;
}

/* ---------- syntax ---------- */

.tok-comment {
  color: var(--syn-comment);
  font-style: italic;
}

.tok-string {
  color: var(--syn-string);
}

.tok-number {
  color: var(--syn-number);
}

.tok-keyword {
  color: var(--syn-keyword);
  font-weight: 600;
}

.tok-literal {
  color: var(--syn-literal);
}

.tok-attr {
  color: var(--syn-attr);
}

.tok-punct {
  color: var(--syn-punct);
}

/* ---------- responsive ---------- */

@media (max-width: 640px) {
  body {
    font-size: 15.5px;
  }

  .site-header .inner {
    padding: 12px 16px;
    gap: 12px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
  }

  .hero .inner,
  .wrap {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero .inner {
    padding-top: 56px;
    padding-bottom: 48px;
  }

  th,
  td {
    padding: 10px 12px;
  }
}

/* API reference. One card per item, the declaration in monospace above the
   sentence the source wrote about it; members of a type sit under it, quieter,
   because a field is read after the type it belongs to. */
.api-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.api-item {
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.api-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.api-signature {
  display: block;
  max-width: 100%;
  margin: 0;
  padding: 8px 10px;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 1.55;
  white-space: pre;
  overflow-x: auto;
  color: var(--text);
}

.api-item p {
  margin: 10px 0 0;
}

.api-item p code {
  font-size: 0.88em;
}

.api-members {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.api-label {
  margin-bottom: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.api-members ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.api-members li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid var(--accent-soft);
}

.api-members .api-member .api-signature {
  padding: 0;
  background: none;
  border: 0;
  color: var(--accent-text);
  font-size: 0.8rem;
}

.api-members p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* ---------- scrollbars ---------- */

/* WebKit engines (Chrome, Safari, Edge) read these. */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* Firefox reads the standard properties. Chrome ignores ::-webkit-scrollbar
   when scrollbar-color is set, so this is scoped to engines that do not have
   ::-webkit-scrollbar at all. */
@supports not selector(::-webkit-scrollbar) {
  html {
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
  }
}

/* Code is read to be typed: no ligatures that turn >= into ≥ or => into ⇒. */
html,
button,
input,
textarea,
select {
  font-variant-ligatures: no-contextual;
}

/* ---------- showcase ---------- */

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 14px;
}
.tabs button {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
}
.tabs button:hover {
  border-color: var(--border-strong);
  color: var(--text);
}
.tabs button[aria-selected="true"] {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border));
  color: var(--accent-text);
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin: 0 0 14px;
}
.controls label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.86rem;
  color: var(--muted);
}
.controls select {
  font: inherit;
  font-size: 0.9rem;
  padding: 6px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.controls input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}
.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}
.demo-grid textarea {
  width: 100%;
  min-height: 230px;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.65;
  tab-size: 2;
  resize: vertical;
}
.demo-grid .code-card pre {
  min-height: 230px;
  max-height: 420px;
  overflow: auto;
}
@media (width <= 760px) {
  .demo-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.doc-input {
  display: block;
  width: 100%;
  min-height: 240px;
  margin: 0 0 28px;
  padding: 18px 20px;
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.7;
  tab-size: 2;
  resize: vertical;
}
.doc-input:focus {
  border-color: var(--accent);
  outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent);
  outline-offset: 2px;
}

/* ---------- dropdown ---------- */

/* A native <select> is drawn by the operating system: its popup ignores the
   page's colours, so it looks pasted on. This is the same control with our own
   surface, border and shadow, and it keeps the roles a screen reader needs. */

.field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.field-label {
  font-size: 0.86rem;
  color: var(--muted);
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 84px;
  padding: 6px 10px 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}

.dropdown-trigger:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border-strong));
}

.dropdown-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.dropdown-trigger .chevron {
  margin-left: auto;
  opacity: 0.55;
  transition: transform 0.15s ease;
}

.dropdown[data-open="true"] .chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  z-index: 30;
  top: calc(100% + 6px);
  left: 0;
  min-width: 100%;
  margin: 0;
  padding: 5px;
  list-style: none;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface);
  box-shadow:
    0 18px 40px -18px rgb(2 6 23 / 55%),
    0 2px 6px rgb(2 6 23 / 16%);
}

.dropdown-menu[hidden] {
  display: none;
}

.dropdown-menu li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--text);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}

.dropdown-menu li:hover,
.dropdown-menu li.is-active {
  background: var(--accent-soft);
}

.dropdown-menu li[aria-selected="true"] {
  color: var(--accent-text);
  font-weight: 600;
}

.dropdown-menu li .tick {
  opacity: 0;
}

.dropdown-menu li[aria-selected="true"] .tick {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .dropdown-trigger .chevron {
    transition: none;
  }
}

/* While "tabs" is checked the count has no effect; say so quietly. */
.field[data-muted="true"] {
  opacity: 0.45;
}

.dropdown[data-open="true"] .dropdown-trigger {
  border-color: var(--accent);
}

/* ---------- the document's reader ---------- */

.doc-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: -10px 0 26px;
  font-size: 0.86rem;
  color: var(--muted);
}

.reader-hint {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- a refused document ---------- */

/* The sentence comes from Refused::message: it already names the line and the
   column, so the box only has to colour it. */
pre.is-refused {
  color: var(--danger);
}

.code-card.is-refused {
  border-color: color-mix(in srgb, var(--danger) 45%, var(--code-border));
  background: var(--danger-soft);
}

.code-card.is-refused .bar {
  color: var(--danger);
}

/* The page scroll bar shows while the page moves or under the pointer and
   hides a moment after; it keeps its place, so nothing shifts. */
@supports selector(::-webkit-scrollbar) {
  html:not(.scrolling)::-webkit-scrollbar-thumb { background: transparent; border-color: transparent; box-shadow: none; }
}
@supports not selector(::-webkit-scrollbar) {
  html:not(.scrolling) { scrollbar-color: transparent transparent; }
}