@font-face {
  font-family: "Manrope Variable";
  src: url("../fonts/manrope-latin-ext-wght-normal.woff2") format("woff2-variations");
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Manrope Variable";
  src: url("../fonts/manrope-latin-wght-normal.woff2") format("woff2-variations");
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/JetBrainsMono-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --color-bg: #171827;
  --color-text: #e5e7eb;
  --color-heading: #f8fafc;
  --color-muted: #9ca3af;
  --color-subtle: #9ca3af;
  --surface: #020617;
  --surface-raised: #0b1120;
  --surface-overlay: rgba(2, 6, 23, 0.94);
  --border: #1f2937;
  --border-strong: #374151;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --primary-soft: rgba(37, 99, 235, 0.16);
  --focus: #38bdf8;
  --danger: #fb7185;
  --danger-soft: rgba(251, 113, 133, 0.1);
  --lesson-accent: #ef4444;
  --lesson-surface: rgba(239, 68, 68, 0.07);
  --placeholder: #9ca3af;
  --placeholder-soft: rgba(148, 163, 184, 0.08);
  --shadow-soft: 0 0.35rem 1.1rem rgb(15 23 42 / 6%);
  --code-comment: #94a3b8;
  --code-keyword: #fb7185;
  --code-string: #7dd3fc;
  --code-number: #93c5fd;
  --code-decorator: #c4b5fd;
  --font-sans: "Manrope Variable", "Manrope", "Segoe UI", sans-serif;
  --font-reading: var(--font-sans);
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --page-max: 1200px;
  --content-max: 1120px;
  --reading-max: 760px;
  --shell-max: 100rem;
  --radius: 8px;
  --radius-large: 12px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --color-bg: #ffffff;
  --color-text: #172033;
  --color-heading: #020617;
  --color-muted: #5f6877;
  --color-subtle: #5f6877;
  --surface: #ffffff;
  --surface-raised: #f8fafc;
  --surface-overlay: rgba(255, 255, 255, 0.95);
  --border: #dde2e9;
  --border-strong: #c8ced8;
  --primary: #ef4444;
  --primary-strong: #b91c1c;
  --primary-soft: rgba(239, 68, 68, 0.1);
  --focus: #0284c7;
  --danger: #be123c;
  --danger-soft: rgba(190, 18, 60, 0.08);
  --lesson-accent: #dc2626;
  --lesson-surface: rgba(220, 38, 38, 0.045);
  --placeholder: #5f6877;
  --placeholder-soft: rgba(100, 116, 139, 0.07);
  --code-comment: #6e7781;
  --code-keyword: #cf222e;
  --code-string: #0a3069;
  --code-number: #0550ae;
  --code-decorator: #8250df;
}

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

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--color-bg);
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-wrap: break-word;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 450;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

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

.inline-content-link {
  color: var(--primary-strong);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

.inline-content-link:hover {
  color: var(--primary);
}

.content-block-heading[id] {
  scroll-margin-top: 1.25rem;
}

button {
  color: inherit;
}

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

h1,
h2,
h3,
p,
ul {
  margin-top: 0;
}

h1,
h2,
h3,
strong {
  letter-spacing: 0;
}

h1,
h2,
h3 {
  color: var(--color-heading);
  line-height: 1.12;
}

h1 {
  margin-bottom: 16px;
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 750;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 750;
}

h3 {
  margin-bottom: 12px;
  font-size: 19px;
  font-weight: 750;
}

.site-shell {
  width: min(calc(100% - 2.5rem), var(--shell-max));
  min-height: 100vh;
  margin: 0 auto;
  padding: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 5000;
  padding: 9px 13px;
  border-radius: 6px;
  background: var(--color-heading);
  color: var(--color-bg);
  font-weight: 750;
  transform: translateY(-160%);
}

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

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

.noscript-notice,
.content-error {
  width: min(100%, var(--content-max));
  margin: 14px auto 0;
  padding: 12px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--color-muted);
  font-size: 13px;
}

.content-error {
  display: flex;
  align-items: baseline;
  gap: 8px;
  border-color: var(--danger);
  background: var(--danger-soft);
}

.content-error strong {
  flex: 0 0 auto;
  color: var(--color-heading);
}

.home-heading {
  display: flex;
  max-width: 980px;
  margin: 0 auto;
  padding: 42px 24px 48px;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-logo {
  width: 198px;
  height: 158px;
  margin-bottom: 2px;
  object-fit: contain;
}

.hero-author {
  margin: -6px 0 19px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 9px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.home-heading h1 {
  max-width: 900px;
  margin-bottom: 16px;
}

.home-introduction {
  max-width: var(--reading-max);
  margin: 0 auto;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.7;
}

.home-introduction p {
  margin-bottom: 12px;
  white-space: pre-line;
}

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

.primary-action {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 17px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 750;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.primary-action {
  border: 1px solid var(--primary-strong);
  background: var(--primary-strong);
  color: #ffffff;
}

.primary-action:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.article-section li::marker {
  color: var(--primary);
}

.home-dashboard {
  width: min(100%, var(--page-max));
  margin: 0 auto;
  padding: 26px 0 92px;
  scroll-margin-top: 100px;
}

.home-dashboard .article-section h3 {
  margin: 0 0 30px;
  color: var(--color-heading);
  font-size: 34px;
  font-weight: 750;
  line-height: 1.12;
}

.article-layout {
  display: block;
  width: min(100%, 1000px);
  margin: 0 auto;
  padding-top: 30px;
}

.article-toc-band {
  width: 100%;
  margin: 0 0 16px;
  padding-bottom: 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.article-toc {
  position: static;
  display: grid;
  width: min(100%, 460px);
  min-width: 0;
  margin: 0 auto;
  align-items: center;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 17px 8px;
  text-align: left;
}

.article-toc > span {
  margin-bottom: 5px;
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-align: left;
  text-transform: uppercase;
}

.article-toc-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.article-toc a {
  width: 100%;
  padding: 9px 2px;
  color: var(--color-muted);
  font-size: 16px;
  font-weight: 650;
  line-height: 1.35;
  text-align: left;
}

.article-toc a:hover {
  color: var(--color-heading);
}

.article-body {
  overflow: visible;
  width: 100%;
  min-width: 0;
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.article-section {
  --nested-heading-inset: clamp(16px, 2vw, 24px);
  --nested-body-inset: calc(var(--nested-heading-inset) + 24px);
  width: 100%;
  font-family: var(--font-reading);
  margin: 0 0 70px;
  padding: 0 0 70px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 118px;
}

.article-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.home-dashboard .article-section--blocks {
  --reading-max: 90%;
}

.section-number {
  margin-bottom: 10px;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
}

.article-section p:not(.section-number),
.article-section li {
  color: var(--color-text);
  font-size: clamp(0.98rem, 1.5vw, 1.04rem);
  line-height: 1.82;
}

.article-section p:not(.section-number) {
  margin-bottom: 18px;
  white-space: pre-line;
}

.article-section p.article-cushion {
  margin-top: 32px;
}

.article-section ul,
.article-section ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.article-section li {
  margin-bottom: 8px;
  padding-left: 4px;
}

.lesson-callout {
  width: min(100%, var(--reading-max));
  margin: 28px 0 30px;
  padding: 18px 22px 19px;
  border: 0;
  border-left: 4px solid var(--lesson-accent);
  border-radius: 0;
  background: var(--lesson-surface);
  box-shadow: none;
  break-inside: avoid;
}

.lesson-callout__label {
  display: block;
  margin-bottom: 7px;
  color: var(--lesson-accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.2;
  text-transform: uppercase;
}

.article-section p.lesson-callout__text {
  margin: 0;
  color: var(--color-heading);
  font-size: clamp(1rem, 0.96rem + 0.25vw, 1.125rem);
  font-weight: 400;
  line-height: 1.62;
}

.article-section .content-block-heading {
  display: grid;
  margin: 52px 0 18px;
  color: var(--color-heading);
  font-size: 22px;
  font-weight: 750;
  grid-template-columns: 1fr;
  line-height: 1.3;
  scroll-margin-top: 118px;
}

.article-section h3 + .content-block-heading {
  margin-top: 0;
}

.content-block-heading__number {
  margin-bottom: 7px;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.article-section .content-block-subheading {
  max-width: var(--reading-max);
  margin: 38px 0 14px;
  color: var(--color-heading);
  font-size: 19px;
  font-weight: 720;
  line-height: 1.35;
  scroll-margin-top: 118px;
}

.article-section .content-block-subheading--bullet {
  display: grid;
  width: min(
    calc(100% - var(--nested-heading-inset)),
    calc(var(--reading-max) - var(--nested-heading-inset))
  );
  margin-top: 24px;
  margin-bottom: 6px;
  margin-left: var(--nested-heading-inset);
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 12px;
  font-size: clamp(0.98rem, 1.5vw, 1.04rem);
  font-weight: 700;
}

.content-block-subheading__marker {
  color: currentColor;
  font-size: 1em;
  line-height: 1;
}

.content-block-heading + .content-block-subheading {
  margin-top: 26px;
}

.content-block-subheading ~ .content-block-subheading {
  margin-top: 48px;
  padding-top: 36px;
}

.article-section
  .content-block-subheading--bullet
  ~ .content-block-subheading--bullet {
  margin-top: 22px;
  padding-top: 0;
  border-top: 0;
}

.article-section
  :is(.content-block-paragraph, .equation-block).content-block--nested {
  width: min(
    calc(100% - var(--nested-body-inset)),
    calc(var(--reading-max) - var(--nested-body-inset))
  );
  margin-left: var(--nested-body-inset);
}

.article-section p.content-block-paragraph.content-block--nested {
  margin-bottom: 6px;
  line-height: 1.68;
}

.article-section
  p.content-block-paragraph.content-block--nested
  + .content-block-list {
  width: min(
    calc(100% - var(--nested-body-inset)),
    calc(var(--reading-max) - var(--nested-body-inset))
  );
  margin-left: var(--nested-body-inset);
  padding-left: 0;
  list-style: none;
}

.article-section
  p.content-block-paragraph.content-block--nested
  + .content-block-list
  > li {
  position: relative;
  padding-left: 20px;
}

.article-section
  p.content-block-paragraph.content-block--nested
  + .content-block-list
  > li::before {
  position: absolute;
  left: 0;
  color: currentColor;
  content: "-";
}

.article-section
  .equation-block.content-block--nested
  .equation-block__math {
  margin-block: 0.55rem;
  padding-block: 0.25rem 0.4rem;
}

.article-section
  .equation-block.content-block--nested
  .equation-block__math
  mjx-container[display="true"] {
  margin-block: 0;
}

.article-section
  .content-block--nested
  + .content-block-paragraph:not(.content-block--nested) {
  margin-top: 24px;
}

.article-section p.content-block-paragraph {
  max-width: var(--reading-max);
}

.paper-references {
  width: min(100%, var(--reading-max));
  margin: -2px 0 24px;
}

.paper-references.content-block--nested {
  width: min(
    calc(100% - var(--nested-body-inset)),
    calc(var(--reading-max) - var(--nested-body-inset))
  );
  margin: 2px 0 12px var(--nested-body-inset);
}

.article-section p.paper-references__label {
  margin: 0 0 5px;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
}

.article-section .paper-references__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-section .paper-references__list > li {
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
  line-height: 1.55;
}

.paper-references__list > li + li {
  margin-top: 6px;
}

.paper-references__link {
  color: var(--color-muted);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--primary) 56%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.paper-references__link:hover {
  color: var(--color-heading);
  text-decoration-color: var(--primary);
}

.paper-references__link:focus-visible {
  border-radius: 2px;
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.equation-block {
  width: min(100%, var(--reading-max));
  margin: 24px 0 28px;
}

.code-block {
  position: relative;
  width: min(100%, var(--reading-max));
  margin: 1.4rem 0;
  overflow: hidden;
  border: 0;
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.equation-block figcaption,
.code-block figcaption,
.content-table caption {
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.03em;
  line-height: 1.5;
  text-align: left;
}

.equation-block figcaption,
.code-block figcaption {
  margin-bottom: 8px;
}

.code-block > figcaption {
  margin: 0;
  padding: 0.7rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.equation-block__expression {
  display: grid;
  min-width: 0;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  overflow-x: auto;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  background: var(--surface-raised);
  scrollbar-width: thin;
}

.equation-block:not(.equation-block--plain) .equation-block__expression {
  display: block;
  padding: 18px 22px 19px;
  border: 0;
  border-left: 4px solid var(--lesson-accent);
  border-radius: 0;
  background: var(--lesson-surface);
  box-shadow: none;
}

.equation-block:not(.equation-block--plain) .equation-block__math {
  color: var(--color-heading);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}

.equation-block:not(.equation-block--plain) .equation-block__label {
  display: block;
  margin-bottom: 7px;
  color: var(--lesson-accent);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
}

.equation-block--plain .equation-block__expression {
  display: block;
  padding: clamp(20px, 3vw, 28px);
  border: 0;
  background: var(--surface);
  box-shadow: none;
}

.equation-block--plain:not(.equation-block--captioned) {
  margin-block: 0;
}

.equation-block--plain:not(.equation-block--captioned) .equation-block__expression {
  padding: 0;
  background: transparent;
}

.equation-block--plain.equation-block--captioned {
  margin-block: 36px 40px;
  padding: clamp(18px, 2.4vw, 24px);
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.equation-block--plain.equation-block--captioned > figcaption {
  margin: 0 0 8px;
  padding-bottom: 0;
  border-bottom: 0;
  text-align: center;
}

.equation-block--plain.equation-block--captioned .equation-block__expression {
  padding: clamp(24px, 3vw, 34px) 0 12px;
}

.equation-block--plain.equation-block--captioned .equation-block__math {
  margin-block: 0;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
}

.equation-block__label {
  flex: 0 0 auto;
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.5;
  text-transform: uppercase;
}

.equation-block__math {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin-block: 1.05rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.45rem 0.15rem 0.65rem;
  color: inherit;
  line-height: inherit;
  overscroll-behavior-inline: contain;
  text-align: center;
}

.math-inline {
  color: inherit;
  white-space: nowrap;
}

.math-inline mjx-container {
  max-width: 100%;
  color: inherit;
}

.math-inline mjx-container[jax="SVG"] > svg {
  display: inline-block;
  max-width: none;
}

.math-inline--fallback {
  font-family: var(--font-mono);
  white-space: normal;
}

.equation-block__math mjx-container {
  max-width: 100%;
  color: inherit;
}

.equation-block__math mjx-container[jax="SVG"] > svg {
  display: inline-block;
  max-width: none;
}

.equation-block__math mjx-container[display="true"] {
  overflow: visible;
  padding-block: 0.15rem 0.35rem;
}

.equation-block__fallback {
  display: block;
  min-width: max-content;
  color: var(--primary-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-ligatures: none;
  line-height: 1.7;
  white-space: pre;
}

.article-section .content-block-list {
  max-width: var(--reading-max);
  margin-bottom: 28px;
}

.content-table-wrap {
  width: min(100%, var(--reading-max));
  margin: 28px 0 42px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  scrollbar-width: thin;
}

.content-table-wrap:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.content-table {
  width: 100%;
  min-width: 760px;
  table-layout: fixed;
  border-collapse: collapse;
  color: var(--color-text);
  font-size: 0.98rem;
  line-height: 1.55;
}

.content-table caption {
  padding: 13px 12px 11px;
  border-bottom: 1px solid var(--border);
}

.content-table th,
.content-table td {
  padding: 17px 20px 18px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.content-table thead th {
  padding-top: 15px;
  padding-bottom: 15px;
  color: var(--color-heading);
  background: transparent;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: none;
}

.content-table tbody th {
  color: var(--color-heading);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

.content-table th:first-child,
.content-table td:first-child {
  width: 9%;
}

.content-table th:nth-child(2),
.content-table td:nth-child(2) {
  width: 32%;
}

.content-table th:nth-child(3),
.content-table td:nth-child(3) {
  width: 59%;
}

.content-table tbody tr:last-child > * {
  border-bottom: 0;
}

.content-table-wrap--parameter-grid {
  width: min(100%, var(--reading-max));
  margin: 28px 0 44px;
  overflow: visible;
  border: 0;
}

.content-table--parameter-grid {
  display: block;
  min-width: 0;
  table-layout: auto;
  border-collapse: separate;
}

.content-table--parameter-grid thead {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.content-table--parameter-grid tbody {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.content-table--parameter-grid tbody tr {
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border);
  border-top: 2px solid var(--primary);
  border-radius: 10px;
  background: var(--surface);
}

.content-table-wrap--parameter-grid .content-table--parameter-grid tbody th,
.content-table-wrap--parameter-grid .content-table--parameter-grid tbody td {
  display: block;
  width: auto;
  padding-right: 19px;
  padding-left: 19px;
  border: 0;
}

.content-table-wrap--parameter-grid .content-table--parameter-grid tbody th {
  padding-top: 18px;
  padding-bottom: 13px;
  color: var(--primary);
  font-size: 1.18rem;
  line-height: 1.2;
}

.content-table-wrap--parameter-grid .content-table--parameter-grid tbody td {
  padding-top: 0;
  padding-bottom: 18px;
  color: var(--color-text);
  font-size: 0.88rem;
  line-height: 1.58;
}

.content-table--parameter-grid tbody td::before {
  display: block;
  margin-bottom: 5px;
  color: var(--color-subtle);
  content: attr(data-label);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.065em;
  line-height: 1.4;
  text-transform: uppercase;
}

@media (max-width: 1040px) {
  .content-table--parameter-grid tbody {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .content-table--parameter-grid tbody {
    grid-template-columns: minmax(0, 1fr);
  }
}

.model-callout {
  width: min(100%, var(--reading-max));
  margin: 27px 0 30px;
  padding: 17px 20px 18px;
  border-left: 3px solid var(--primary);
  background: var(--primary-soft);
  break-inside: avoid;
}

.model-callout--result {
  border-left-color: var(--lesson-accent);
  background: var(--lesson-surface);
}

.model-callout--warning {
  border-left-color: var(--danger);
  background: var(--danger-soft);
}

.model-callout__label {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.model-callout--result .model-callout__label {
  color: var(--lesson-accent);
}

.model-callout--warning .model-callout__label {
  color: var(--danger);
}

.article-section p.model-callout__text {
  margin: 0;
  color: var(--color-heading);
  font-size: 15px;
  line-height: 1.7;
}

.code-toolbar {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.48rem 0.65rem 0.48rem 1.15rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.code-toolbar__language {
  min-width: 0;
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-code {
  min-width: 4.7rem;
  min-height: 2.05rem;
  flex: none;
  padding: 0.35rem 0.72rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  appearance: none;
  background: var(--surface);
  color: var(--color-text);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: none;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

.copy-code:hover:not(:disabled) {
  border-color: var(--border-strong);
  background: var(--surface-raised);
  color: var(--color-heading);
}

.copy-code[data-copy-state="success"] {
  border-color: color-mix(in srgb, #15803d 28%, var(--border));
  background: color-mix(in srgb, #15803d 10%, var(--surface));
  color: #15803d;
}

.copy-code[data-copy-state="error"] {
  border-color: color-mix(in srgb, var(--danger) 28%, var(--border));
  background: color-mix(in srgb, var(--danger) 7%, var(--surface));
  color: var(--danger);
}

.copy-code:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.code-block pre {
  max-width: 100%;
  max-height: min(72vh, 48rem);
  margin: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 1.15rem 1.25rem 1.3rem;
  border: 0;
  background: var(--surface);
  scrollbar-gutter: stable;
  scrollbar-color: var(--border-strong) transparent;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.code-block code {
  display: grid;
  width: max-content;
  min-width: 100%;
  color: var(--color-heading);
  font-family: var(--font-mono);
  font-size: clamp(0.8rem, 0.77rem + 0.12vw, 0.87rem);
  font-variant-ligatures: none;
  line-height: 1.7;
  tab-size: 4;
  white-space: pre;
}

.code-block .code-line {
  display: block;
  min-width: 100%;
  min-height: 1.7em;
}

.code-token--comment {
  color: var(--code-comment);
  font-style: italic;
}

.code-token--keyword {
  color: var(--code-keyword);
}

.code-token--string {
  color: var(--code-string);
}

.code-token--number,
.code-token--constant {
  color: var(--code-number);
}

.code-token--decorator {
  color: var(--code-decorator);
}

.code-block--numbered pre {
  padding-left: 0.85rem;
}

.code-block--numbered code {
  counter-reset: code-line;
}

.code-block--numbered .code-line {
  position: relative;
  padding-left: 3.05rem;
  counter-increment: code-line;
}

.code-block--numbered .code-line::before {
  position: absolute;
  left: 0;
  width: 1.9rem;
  color: #98a2b3;
  content: counter(code-line);
  font-variant-numeric: tabular-nums;
  text-align: right;
  user-select: none;
}

:root:not([data-theme="light"]) .copy-code[data-copy-state="success"] {
  border-color: color-mix(in srgb, #4ade80 38%, var(--border));
  background: color-mix(in srgb, #4ade80 10%, var(--surface));
  color: #86efac;
}

.state-main {
  display: grid;
  min-height: calc(100vh - 170px);
  place-items: center;
}

.state-panel {
  max-width: 620px;
  padding: 70px 20px;
  text-align: center;
}

.state-panel > p:not(.eyebrow) {
  max-width: 520px;
  margin: 0 auto 28px;
  color: var(--color-muted);
}

.is-placeholder {
  color: var(--placeholder);
}

.is-placeholder strong,
.is-placeholder h2,
.is-placeholder h3,
.is-placeholder h4 {
  color: var(--placeholder);
}

.site-footer {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 4px;
  border-top: 1px solid var(--border);
  color: var(--color-subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1100px) {
  .article-toc {
    padding: 15px 0;
  }
}

@media (max-width: 680px) {
  .site-shell {
    width: min(calc(100% - 1rem), var(--shell-max));
    padding-top: 0;
  }

  .content-error {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .home-heading {
    padding: 28px 10px 40px;
  }

  .hero-logo {
    width: 158px;
    height: 126px;
  }

  .hero-author {
    margin-top: -4px;
    font-size: 9px;
  }

  .home-heading h1 {
    font-size: 32px;
  }

  .home-introduction {
    font-size: 14px;
  }

  .home-dashboard {
    padding-top: 20px;
  }

  .article-layout {
    padding-top: 24px;
  }

  .article-section {
    width: 100%;
    margin: 0 0 50px;
    padding: 0 0 50px;
  }

  .article-section:last-child {
    padding-bottom: 0;
  }

  .home-dashboard .article-section h3 {
    font-size: 27px;
  }

  .article-section .content-block-heading {
    margin-top: 42px;
    font-size: 19px;
  }

  .article-section .content-block-subheading {
    margin-top: 32px;
    font-size: 17px;
  }

  .article-section .content-block-subheading--bullet {
    margin-top: 22px;
    margin-bottom: 6px;
    font-size: clamp(0.98rem, 1.5vw, 1.04rem);
  }

  .content-block-subheading ~ .content-block-subheading {
    margin-top: 40px;
    padding-top: 30px;
  }

  .article-section
    .content-block-subheading--bullet
    ~ .content-block-subheading--bullet {
    margin-top: 20px;
    padding-top: 0;
    border-top: 0;
  }

  .equation-block__expression {
    display: block;
    padding: 14px;
  }

  .equation-block__label {
    display: block;
    margin-bottom: 6px;
  }

  .equation-block__fallback {
    font-size: 11px;
  }

  .content-table {
    font-size: 12px;
  }

  .content-table th,
  .content-table td {
    padding: 10px;
  }

  .model-callout {
    padding: 15px 16px 16px;
  }

  .lesson-callout {
    margin: 24px 0 26px;
    padding: 16px 16px 17px;
  }

  .article-section p.lesson-callout__text {
    font-size: 1rem;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
  }

  .equation-block__expression,
  .model-callout {
    border-color: CanvasText;
  }
}

@media (max-width: 390px) {
  .home-heading h1 {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .primary-action {
    border: 1px solid ButtonText;
  }

  .lesson-callout {
    border: 0;
    border-left-width: 4px;
    border-left-style: solid;
    border-left-color: CanvasText;
    box-shadow: none;
  }

  .equation-block__expression,
  .model-callout {
    border-color: #666666;
    background: transparent;
  }

  .code-block {
    border: 1px solid CanvasText;
    background: Canvas;
    box-shadow: none;
  }

  .code-block > figcaption,
  .code-toolbar {
    border-color: CanvasText;
    background: Canvas;
    color: CanvasText;
  }

  .copy-code,
  .copy-code:hover:not(:disabled) {
    border-color: ButtonText;
    background: ButtonFace;
    color: ButtonText;
  }

  .copy-code[data-copy-state="success"],
  .copy-code[data-copy-state="error"] {
    border-color: Highlight;
    background: Canvas;
    color: Highlight;
  }

  .code-block pre {
    background: Canvas;
  }

  .code-block code {
    color: CanvasText;
  }

  .code-block--numbered .code-line::before {
    color: GrayText;
  }

  .content-table-wrap {
    overflow: visible;
  }
}

@media print {
  :root,
  :root[data-theme="light"] {
    --color-bg: #ffffff;
    --color-text: #000000;
    --color-heading: #000000;
    --color-muted: #333333;
    --color-subtle: #444444;
    --surface: #ffffff;
    --surface-raised: #ffffff;
    --border: #aaaaaa;
  }

  .article-toc-band,
  .site-footer {
    display: none;
  }

  .site-shell,
  .home-dashboard {
    width: 100%;
    max-width: none;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .lesson-callout {
    border: 0;
    border-left: 4px solid #b91c1c;
    background: transparent;
    box-shadow: none;
  }

  .equation-block--plain .equation-block__expression {
    box-shadow: none;
  }

  .code-block {
    overflow: visible;
    border: 1px solid #aaaaaa;
    background: #ffffff;
    box-shadow: none;
    break-inside: avoid;
  }

  .code-block > figcaption,
  .code-toolbar {
    border-color: #aaaaaa;
    background: #ffffff;
    color: #333333;
  }

  .copy-code {
    display: none;
  }

  .code-block pre {
    max-height: none;
    overflow: visible;
    background: #ffffff;
    scrollbar-gutter: auto;
  }

  .code-block code {
    width: auto;
    min-width: 0;
    color: #000000;
    white-space: pre-wrap;
  }

  .code-block .code-line {
    white-space: pre-wrap;
  }
}

/* Interactive Avellaneda-Stoikov simulation */
.simulation-block.simulation-lab {
  --simulation-red: #dc2626;
  --simulation-bid: #2563eb;
  --simulation-ask: #d97706;
  --simulation-mid: #111827;
  --simulation-reservation: #dc2626;
  --simulation-inventory: #7e22ce;
  --simulation-pnl: #15803d;
  --simulation-lean: #0f766e;
  --simulation-symmetric: #d97706;
  --simulation-shadow: var(--shadow-soft);
  --simulation-inner-shadow: 0 0.25rem 0.9rem rgba(15, 23, 42, 0.055);
  width: 100%;
  max-width: none;
  min-width: 0;
  margin: clamp(2rem, 5vw, 3.5rem) 0;
  color: var(--color-text);
}

:root:not([data-theme="light"]) .simulation-block.simulation-lab {
  --simulation-bid: #60a5fa;
  --simulation-ask: #fbbf24;
  --simulation-mid: #f8fafc;
  --simulation-reservation: #f87171;
  --simulation-inventory: #c4b5fd;
  --simulation-pnl: #4ade80;
  --simulation-lean: #2dd4bf;
  --simulation-symmetric: #fbbf24;
  --simulation-inner-shadow: 0 0.2rem 0.8rem rgba(0, 0, 0, 0.18);
}

.simulation-lab__inner {
  display: grid;
  min-width: 0;
  gap: 1.1rem;
}

.simulation-lab__caption {
  margin: 0;
  color: var(--color-heading);
  font-size: 0.98rem;
  font-weight: 650;
  line-height: 1.55;
}

.simulation-controls {
  min-inline-size: 0;
  margin: 0;
  padding: 1.1rem;
  border: 0;
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: none;
}

.simulation-controls__legend {
  padding: 0 0.4rem;
  color: var(--simulation-red);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  line-height: 1.3;
  text-transform: uppercase;
}

.simulation-controls__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.simulation-control {
  position: relative;
  display: grid;
  min-width: 0;
  gap: 0.55rem;
  padding: 0.45rem 0.2rem 0.2rem;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.simulation-control__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  min-width: 0;
  gap: 0.75rem;
  line-height: 1.35;
}

.simulation-control__name {
  display: inline-flex;
  align-items: baseline;
  min-width: 0;
  color: var(--color-heading);
  font-family: var(--font-reading);
  font-size: 0.9rem;
  font-weight: 680;
  letter-spacing: -0.01em;
}

.simulation-control__name .math-inline {
  display: inline-flex;
  min-width: 0.72em;
  align-items: baseline;
  justify-content: center;
  color: inherit;
  transform: translateY(0.035em);
}

.simulation-control__name .math-inline mjx-container {
  margin: 0 !important;
}

.simulation-control__value {
  flex: 0 0 auto;
  padding: 0.18rem 0.48rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--simulation-red) 9%, var(--surface));
  color: var(--simulation-red);
  font-family: var(--font-reading);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  font-weight: 720;
  letter-spacing: -0.01em;
}

.simulation-control__range {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  margin: 0;
  border-radius: 999px;
  background: transparent;
  accent-color: var(--simulation-red);
  cursor: pointer;
}

.simulation-control__range::-webkit-slider-runnable-track {
  height: 0.3rem;
  border: 0;
  border-radius: 999px;
  background:
    linear-gradient(
      to right,
      var(--simulation-red) 0 var(--range-progress, 50%),
      color-mix(in srgb, var(--color-muted) 24%, var(--surface-raised))
        var(--range-progress, 50%) 100%
    );
}

.simulation-control__range::-webkit-slider-thumb {
  width: 1rem;
  height: 1rem;
  margin-top: -0.35rem;
  border: 3px solid var(--surface);
  border-radius: 50%;
  appearance: none;
  background: var(--simulation-red);
  box-shadow: 0 2px 7px rgba(15, 23, 42, 0.24);
}

.simulation-control__range::-moz-range-track {
  height: 0.3rem;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-muted) 24%, var(--surface-raised));
}

.simulation-control__range::-moz-range-progress {
  height: 0.3rem;
  border-radius: 999px;
  background: var(--simulation-red);
}

.simulation-control__range::-moz-range-thumb {
  width: 0.82rem;
  height: 0.82rem;
  border: 3px solid var(--surface);
  border-radius: 50%;
  background: var(--simulation-red);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.18);
}

.simulation-control__range:focus-visible,
.simulation-button:focus-visible,
.simulation-chart:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

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

.simulation-controls__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.9rem;
}

.simulation-button {
  min-height: 44px;
  padding: 0.62rem 1rem;
  border: 0;
  border-radius: var(--radius);
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: var(--simulation-inner-shadow);
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.simulation-button--primary {
  border-color: var(--simulation-red);
  background: var(--simulation-red);
  color: #ffffff;
}

.simulation-button--secondary {
  background: var(--surface-raised);
  color: var(--color-heading);
}

@media (hover: hover) {
  .simulation-button--primary:hover {
    border-color: #b91c1c;
    background: #b91c1c;
  }

  .simulation-button--secondary:hover {
    border-color: var(--simulation-red);
    color: var(--simulation-red);
  }
}

.simulation-button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.simulation-diagnostics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
  gap: 1rem;
  align-items: stretch;
}

.simulation-diagnostic {
  min-width: 0;
  padding: 1rem;
  overflow: hidden;
  border: 0;
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--simulation-shadow);
}

.simulation-diagnostic--live {
  grid-column: 1 / -1;
  padding: 1.15rem;
}

.simulation-diagnostic--pnl {
  grid-column: 1 / -1;
}

.article-section p.simulation-narrative {
  width: min(100%, var(--reading-max));
  margin: 0;
  grid-column: 1 / -1;
  color: var(--color-text);
  font-size: clamp(0.98rem, 1.5vw, 1.04rem);
  line-height: 1.82;
}

.article-section p.simulation-narrative--insight {
  margin-top: 0.35rem;
}

.simulation-diagnostic__title {
  margin: 0 0 0.3rem;
  color: var(--color-heading);
  font-size: 1rem;
  font-weight: 750;
  line-height: 1.3;
}

.simulation-diagnostic__description {
  margin: 0 0 0.9rem;
  color: var(--color-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.simulation-diagnostic__chart {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.simulation-live-charts {
  display: grid;
  min-width: 0;
  gap: 1rem;
  background: transparent;
}

.simulation-live-pane {
  display: grid;
  min-width: 0;
  gap: 0.45rem;
  padding: clamp(0.65rem, 1.5vw, 0.95rem);
  border: 0;
  border-radius: var(--radius-large);
  box-shadow: none;
}

.simulation-live-pane--price {
  background: var(--surface);
}

.simulation-live-pane--inventory {
  background: color-mix(in srgb, var(--simulation-inventory) 5.5%, var(--surface));
}

.simulation-live-pane--pnl {
  background: color-mix(in srgb, var(--simulation-pnl) 5.5%, var(--surface));
}

.simulation-live-pane__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  gap: 0.75rem;
  padding-inline: clamp(0.25rem, 2.25vw, 1.15rem);
}

.simulation-live-pane--price .simulation-live-pane__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
}

.simulation-live-pane__annotation {
  flex: 0 0 auto;
  color: var(--color-heading);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  line-height: 1.35;
}

.simulation-legend--live-price {
  justify-content: flex-start;
  width: auto;
}

svg.simulation-chart {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  min-width: 0;
  overflow: hidden;
  background: var(--surface);
  touch-action: pan-y;
}

svg.simulation-chart--live {
  background: transparent;
}

.simulation-chart__grid {
  stroke: color-mix(in srgb, var(--border) 76%, transparent);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.simulation-chart__tick,
.simulation-chart__axis-label,
.simulation-chart__annotation {
  fill: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.simulation-chart__axis-label,
.simulation-chart__annotation {
  fill: var(--color-heading);
  font-weight: 650;
}

.simulation-diagnostic--pnl
  :is(
    .simulation-chart__tick,
    .simulation-chart__axis-label,
    .simulation-chart__annotation
  ) {
  font-size: 12px;
}

.simulation-chart__series {
  fill: none;
  stroke-width: 1.3;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.simulation-chart__series--ask {
  stroke: var(--simulation-ask);
}

.simulation-chart__series--bid {
  stroke: var(--simulation-bid);
}

.simulation-chart__series--mid {
  stroke: var(--simulation-mid);
  stroke-width: 1.45;
}

.simulation-chart__series--reservation {
  stroke: var(--simulation-reservation);
  stroke-dasharray: 7 5;
}

.simulation-chart__series--inventory {
  stroke: var(--simulation-inventory);
}

.simulation-chart__series--pnl {
  stroke: var(--simulation-pnl);
}

.simulation-chart__fill-marker {
  stroke: var(--surface);
  stroke-width: 1.4;
}

.simulation-chart__fill-marker--ask {
  fill: var(--simulation-ask);
}

.simulation-chart__fill-marker--bid {
  fill: var(--simulation-bid);
}

.simulation-chart__reference {
  stroke: var(--border-strong);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  vector-effect: non-scaling-stroke;
}

.simulation-chart__reference--zero {
  stroke-dasharray: none;
}

.simulation-chart__bar {
  opacity: 0.76;
}

.simulation-chart__bar--pnl-lean {
  fill: var(--simulation-lean);
}

.simulation-chart__bar--pnl-symmetric {
  fill: var(--simulation-symmetric);
}

.simulation-chart__bar--pnl-lean {
  opacity: 0.7;
}

.simulation-chart__bar--pnl-symmetric {
  opacity: 0.9;
}

.simulation-chart__reference--lean-mean {
  stroke: var(--simulation-lean);
}

.simulation-chart__reference--symmetric-mean {
  stroke: var(--simulation-symmetric);
}

.simulation-chart__annotation--lean {
  fill: var(--simulation-lean);
}

.simulation-chart__annotation--symmetric {
  fill: var(--simulation-symmetric);
}

.simulation-chart__interaction {
  cursor: crosshair;
}

.simulation-chart__crosshair {
  stroke: var(--simulation-red);
  stroke-width: 1;
  stroke-dasharray: 3 3;
  vector-effect: non-scaling-stroke;
}

.simulation-chart__crosshair--inventory {
  stroke: var(--simulation-inventory);
}

.simulation-chart__crosshair--pnl {
  stroke: var(--simulation-pnl);
}

.simulation-chart__crosshair,
.simulation-chart__tooltip {
  pointer-events: none;
}

.simulation-chart__tooltip-panel {
  fill: var(--surface-overlay);
  filter: drop-shadow(0 5px 12px rgba(15, 23, 42, 0.14));
  stroke: none;
}

.simulation-chart__tooltip-text,
.simulation-chart__tooltip-body {
  fill: var(--color-heading);
  font-family: var(--font-mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.simulation-chart__tooltip-text {
  font-weight: 700;
}

.simulation-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.9rem;
  margin: 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 0.72rem;
  line-height: 1.35;
  list-style: none;
}

.simulation-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.simulation-legend__swatch {
  display: inline-block;
  width: 1.3rem;
  height: 3px;
  border-radius: 999px;
  background: var(--color-muted);
}

.simulation-legend__swatch--ask {
  background: var(--simulation-ask);
}

.simulation-legend__swatch--bid {
  background: var(--simulation-bid);
}

.simulation-legend__swatch--mid {
  background: var(--simulation-mid);
}

.simulation-legend__swatch--reservation {
  height: 0;
  border-top: 2px dashed var(--simulation-reservation);
  border-radius: 0;
  background: transparent;
}

.simulation-legend__swatch--inventory {
  background: var(--simulation-inventory);
}

.simulation-legend__swatch--pnl {
  background: var(--simulation-pnl);
}

.simulation-legend__swatch--lean {
  background: var(--simulation-lean);
}

.simulation-legend__swatch--symmetric {
  background: var(--simulation-symmetric);
}

.simulation-legend--strategy {
  justify-content: flex-end;
  margin-bottom: 0.45rem;
}

.simulation-comparison {
  display: grid;
  min-width: 0;
  gap: 0.75rem;
}

.simulation-comparison-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: separate;
  border-spacing: 0 0.35rem;
  color: var(--color-text);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.simulation-comparison-table th,
.simulation-comparison-table td {
  padding: 0.65rem 0.75rem;
  border: 0;
  background: var(--surface-raised);
  text-align: right;
}

.simulation-comparison-table thead th {
  padding-block: 0.3rem;
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.simulation-comparison-table th:first-child {
  text-align: left;
}

.simulation-comparison-table tbody th {
  color: var(--color-heading);
  font-weight: 700;
}

.simulation-comparison-table tbody th:first-child {
  border-radius: var(--radius) 0 0 var(--radius);
}

.simulation-comparison-table tbody td:last-child {
  border-radius: 0 var(--radius) var(--radius) 0;
}

.simulation-comparison-table tbody th .simulation-legend__swatch {
  margin-right: 0.5rem;
  vertical-align: middle;
}

.simulation-error {
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.84rem;
  line-height: 1.55;
}

/* Interactive execution-intensity figure */
.execution-intensity-block {
  --simulation-red: #dc2626;
  --intensity-fill: #dc2626;
  --intensity-edge: #0f766e;
  --intensity-shadow: var(--shadow-soft);
  width: min(100%, var(--content-max));
  min-width: 0;
  margin: clamp(2rem, 5vw, 3.25rem) 0;
  color: var(--color-text);
}

:root:not([data-theme="light"]) .execution-intensity-block {
  --intensity-fill: #f87171;
  --intensity-edge: #2dd4bf;
}

.execution-intensity__shell {
  display: grid;
  min-width: 0;
  gap: 0.8rem;
}

.article-section p.execution-intensity__description,
.article-section p.execution-intensity__explanation,
.article-section p.execution-intensity__axis-label {
  margin: 0;
}

.execution-intensity__description {
  max-width: var(--reading-max);
  color: var(--color-text);
  font-size: 0.94rem;
  line-height: 1.65;
  white-space: pre-line;
}

.execution-intensity__panel {
  display: grid;
  min-width: 0;
  gap: 0.65rem;
  padding: clamp(0.9rem, 2.5vw, 1.35rem);
  overflow: hidden;
  border: 0;
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--intensity-shadow);
}

.execution-intensity__header {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
  gap: 1rem;
}

.execution-intensity__legend-label mjx-container,
.execution-intensity__axis-label mjx-container {
  margin: 0 !important;
}

.execution-intensity__legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 0.76rem;
  line-height: 1.4;
  list-style: none;
}

.execution-intensity__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
}

.execution-intensity__legend-swatch {
  width: 1.5rem;
  height: 2px;
  border-radius: 999px;
}

.execution-intensity__legend-swatch--fill {
  background: var(--intensity-fill);
}

.execution-intensity__legend-swatch--edge {
  background: var(--intensity-edge);
}

.execution-intensity__chart-host {
  min-width: 0;
  overflow: hidden;
}

.execution-intensity__chart {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  overflow: hidden;
  background: transparent;
  touch-action: pan-y;
}

.execution-intensity__grid-line {
  stroke: color-mix(in srgb, var(--border) 72%, transparent);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.execution-intensity__curve {
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.execution-intensity__curve--fill {
  stroke: var(--intensity-fill);
}

.execution-intensity__curve--edge {
  stroke: var(--intensity-edge);
}

.execution-intensity__peak-line {
  stroke: var(--color-muted);
  stroke-width: 1;
  stroke-dasharray: 5 5;
  vector-effect: non-scaling-stroke;
}

.execution-intensity__tick,
.execution-intensity__peak-label {
  fill: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.execution-intensity__peak-label {
  fill: var(--color-heading);
  font-family: "STIX Two Math", "Cambria Math", "Times New Roman", serif;
  font-size: 15px;
  font-weight: 400;
  font-variant-numeric: lining-nums tabular-nums;
}

.execution-intensity__peak-variable {
  font-style: italic;
}

.execution-intensity__peak-star {
  font-size: 0.72em;
}

.execution-intensity__axis-label {
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.4;
  text-align: center;
}

.execution-intensity__control {
  width: 100%;
  padding-inline: 0.15rem;
}

.execution-intensity__explanation {
  color: var(--color-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

@media (max-width: 680px) {
  .execution-intensity-block {
    margin-block: 1.75rem;
  }

  .execution-intensity__header {
    align-items: flex-start;
    flex-direction: column;
  }

  .execution-intensity__legend {
    justify-content: flex-start;
  }

  .execution-intensity__tick,
  .execution-intensity__peak-label {
    font-size: 17px;
  }
}

@media (max-width: 980px) {
  .simulation-diagnostics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .simulation-diagnostic--live {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  .simulation-block.simulation-lab {
    margin-block: 1.75rem;
  }

  .simulation-controls,
  .simulation-diagnostic,
  .simulation-diagnostic--live {
    padding: 0.85rem;
  }

  .simulation-controls__grid,
  .simulation-diagnostics {
    grid-template-columns: minmax(0, 1fr);
  }

  .simulation-diagnostic--live {
    grid-column: auto;
  }

  .simulation-live-charts {
    gap: 0.85rem;
  }

  .simulation-live-pane__header {
    align-items: flex-start;
    padding-inline: 0.15rem;
  }

  .simulation-legend--live-price {
    justify-content: flex-start;
  }

  .simulation-diagnostic:not(.simulation-diagnostic--live)
    .simulation-diagnostic__description {
    min-height: 0;
  }

  .simulation-diagnostic--live
    :is(
      .simulation-chart__tick,
      .simulation-chart__axis-label,
      .simulation-chart__annotation
    ) {
    font-size: 20px;
  }

  .simulation-diagnostic--pnl
    :is(
      .simulation-chart__tick,
      .simulation-chart__axis-label,
      .simulation-chart__annotation
    ) {
    font-size: 25px;
  }

  .simulation-comparison-table {
    font-size: 0.7rem;
  }

  .simulation-comparison-table th,
  .simulation-comparison-table td {
    padding: 0.5rem 0.35rem;
    overflow-wrap: anywhere;
  }

}

@media (max-width: 390px) {
  .simulation-controls__actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .simulation-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .simulation-button {
    transition: none;
  }
}

@media (forced-colors: active) {
  .simulation-controls,
  .simulation-control,
  .simulation-diagnostic,
  .simulation-error,
  .execution-intensity__panel {
    border: 1px solid CanvasText;
    background: Canvas;
    box-shadow: none;
    color: CanvasText;
  }

  .simulation-button {
    border-color: ButtonText;
    background: ButtonFace;
    color: ButtonText;
  }

  .simulation-control__range {
    accent-color: Highlight;
  }

  .simulation-chart__series,
  .simulation-chart__reference,
  .simulation-chart__crosshair,
  .execution-intensity__curve,
  .execution-intensity__peak-line {
    stroke: CanvasText;
  }

  .simulation-chart__series--bid {
    stroke-dasharray: 2 2;
  }

  .simulation-chart__series--reservation {
    stroke-dasharray: 7 5;
  }

  .simulation-chart__series--inventory {
    stroke-dasharray: 1 3;
  }

  .simulation-chart__series--pnl {
    stroke-dasharray: 10 3;
  }

  .simulation-chart__bar {
    fill: CanvasText;
  }

  .simulation-legend__swatch {
    border-top-color: CanvasText;
    background: CanvasText;
  }

  .simulation-control__range:focus-visible,
  .simulation-button:focus-visible,
  .simulation-chart:focus-visible {
    outline-color: Highlight;
  }
}

@media print {
  .simulation-block.simulation-lab {
    width: 100%;
    margin: 1.25rem 0;
    color: #000000;
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  .simulation-controls,
  .simulation-chart__interaction,
  .simulation-chart__crosshair,
  .simulation-chart__tooltip {
    display: none;
  }

  .simulation-diagnostics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }

  .simulation-diagnostic {
    padding: 0.75rem;
    border-color: #aaaaaa;
    background: #ffffff;
    box-shadow: none;
    break-inside: avoid;
  }

  .simulation-diagnostic--live {
    grid-column: 1 / -1;
  }

  svg.simulation-chart {
    width: 100%;
    max-width: 100%;
    height: auto;
  }
}