@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  color-scheme: light;
  --paper-bg: var(--pe-color-bg-secondary);
  --paper-surface: var(--pe-color-bg-primary);
  --paper-surface-muted: var(--pe-color-bg-tertiary);
  --paper-text: var(--pe-color-text-primary);
  --paper-text-muted: var(--pe-color-text-secondary);
  --paper-text-tertiary: var(--pe-color-text-tertiary);
  --paper-border: var(--pe-color-border-light);
  --paper-border-strong: var(--pe-color-border-medium);
  --paper-link: var(--pe-color-text-link);
  --paper-link-hover: var(--pe-color-text-linkHover);
  --paper-accent: var(--pe-color-primary-600);
  --paper-accent-soft: var(--pe-color-primary-50);
  --paper-code-bg: color-mix(in srgb, var(--pe-color-primary-50) 28%, white);
  --paper-shadow:
    0 20px 48px color-mix(in srgb, var(--pe-color-primary-900) 10%, transparent),
    0 2px 8px rgba(16, 24, 40, 0.04);
}

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

html {
  background:
    radial-gradient(circle at top left, color-mix(in srgb, var(--pe-color-primary-100) 46%, transparent) 0%, transparent 32%),
    linear-gradient(180deg, #fbfdff 0%, var(--paper-bg) 100%);
  color: var(--paper-text);
  scroll-behavior: smooth;
}

body {
  margin: 0 auto;
  max-width: 1220px;
  padding: var(--pe-space-3xl) var(--pe-space-2xl) var(--pe-space-5xl);
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(250px, 320px);
  column-gap: var(--pe-space-4xl);
  align-items: start;
  font-family: var(--pe-font-family-prose);
  font-size: var(--pe-font-size-base);
  line-height: var(--pe-line-height-relaxed);
  color: var(--paper-text);
}

body > * {
  min-width: 0;
}

body > :not(header#title-block-header):not(nav#TOC) {
  grid-column: 1;
}

header#title-block-header {
  grid-column: 1 / -1;
  margin: 0 0 var(--pe-space-3xl);
  padding: var(--pe-space-4xl);
  border: 1px solid var(--paper-border);
  border-radius: var(--pe-radius-feature);
  background:
    linear-gradient(140deg, white 0%, #fbfdff 58%, color-mix(in srgb, var(--pe-color-primary-50) 55%, white) 100%);
  box-shadow: var(--paper-shadow);
}

header#title-block-header .title {
  margin: 0;
  font-family: var(--pe-font-family-primary);
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: var(--pe-font-weight-extrabold);
  line-height: var(--pe-line-height-tight);
  letter-spacing: -0.045em;
  color: var(--paper-text);
}

header#title-block-header .subtitle {
  margin: var(--pe-space-lg) 0 0;
  max-width: 44rem;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: var(--pe-line-height-relaxed);
  color: var(--paper-text-muted);
}

header#title-block-header .author {
  display: inline-flex;
  margin: var(--pe-space-2xl) 0 0;
  padding: 0.5rem 0.875rem;
  border: 1px solid color-mix(in srgb, var(--paper-accent) 20%, var(--paper-border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper-accent-soft) 70%, white);
  font-family: var(--pe-font-family-mono);
  font-size: var(--pe-font-size-xs);
  font-weight: var(--pe-font-weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-accent);
}

nav#TOC {
  grid-column: 2;
  grid-row: 2 / span 999;
  position: sticky;
  top: var(--pe-space-3xl);
  margin: 0;
  padding: var(--pe-space-2xl);
  border: 1px solid var(--paper-border);
  border-radius: var(--pe-radius-feature);
  background: color-mix(in srgb, white 90%, var(--pe-color-bg-secondary));
  box-shadow: 0 10px 24px rgba(16, 24, 40, 0.05);
}

nav#TOC h2 {
  margin: 0 0 var(--pe-space-lg);
  font-family: var(--pe-font-family-primary);
  font-size: var(--pe-font-size-sm);
  font-weight: var(--pe-font-weight-semibold);
  letter-spacing: -0.02em;
  color: var(--paper-text);
}

nav#TOC ul {
  margin: 0;
  padding-left: 1rem;
}

nav#TOC li + li {
  margin-top: 0.375rem;
}

nav#TOC a {
  color: var(--paper-text-muted);
  text-decoration: none;
}

nav#TOC a:hover,
nav#TOC a.active {
  color: var(--paper-link);
}

h2,
h3,
h4 {
  margin-top: var(--pe-space-4xl);
  margin-bottom: var(--pe-space-lg);
  scroll-margin-top: 5rem;
  font-family: var(--pe-font-family-primary);
  font-weight: var(--pe-font-weight-bold);
  letter-spacing: -0.03em;
  line-height: var(--pe-line-height-tight);
  color: var(--paper-text);
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.45rem);
}

h4 {
  font-size: 1.05rem;
}

p,
ul,
ol,
dl {
  margin-top: 0;
  margin-bottom: var(--pe-space-lg);
  color: var(--paper-text);
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

a {
  color: var(--paper-link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--paper-link-hover);
}

code,
pre,
kbd,
samp {
  font-family: var(--pe-font-family-mono);
}

code {
  padding: 0.12rem 0.35rem;
  border-radius: var(--pe-radius-chip);
  background: var(--paper-code-bg);
  font-size: 0.92em;
}

pre {
  overflow-x: auto;
  padding: var(--pe-space-xl);
  border: 1px solid var(--paper-border);
  border-radius: var(--pe-radius-container);
  background: #fcfefe;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

pre code {
  padding: 0;
  background: transparent;
}

blockquote {
  margin: var(--pe-space-2xl) 0;
  padding: 0.25rem 0 0.25rem var(--pe-space-xl);
  border-left: 3px solid var(--paper-accent);
  color: var(--paper-text-muted);
}

table {
  width: 100%;
  margin: var(--pe-space-2xl) 0;
  border-collapse: collapse;
  border-spacing: 0;
  font-size: var(--pe-font-size-sm);
  background: var(--paper-surface);
  border: 1px solid var(--paper-border);
  border-radius: var(--pe-radius-container);
  overflow: hidden;
}

thead th {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--paper-border);
  background: var(--paper-surface-muted);
  font-family: var(--pe-font-family-primary);
  font-size: var(--pe-font-size-xs);
  font-weight: var(--pe-font-weight-semibold);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--paper-text-muted);
}

tbody td {
  padding: 0.8rem 0.9rem;
  border-top: 1px solid var(--paper-border);
  vertical-align: top;
}

tbody tr:nth-child(even) td {
  background: color-mix(in srgb, var(--paper-surface-muted) 36%, white);
}

.callout {
  margin: var(--pe-space-2xl) 0;
  padding: var(--pe-space-xl);
  border: 1px solid color-mix(in srgb, var(--paper-accent) 24%, var(--paper-border));
  border-radius: var(--pe-radius-container);
  background: color-mix(in srgb, var(--paper-accent-soft) 62%, white);
}

.callout .callout-title-container {
  font-family: var(--pe-font-family-primary);
  font-weight: var(--pe-font-weight-semibold);
  color: var(--paper-text);
}

.callout p:last-child,
.callout ul:last-child,
.callout ol:last-child {
  margin-bottom: 0;
}

.citation,
.quarto-xref {
  color: var(--paper-link);
}

.anchored {
  position: relative;
}

.anchored .anchorjs-link {
  color: var(--paper-text-tertiary);
}

.anchored .anchorjs-link:hover {
  color: var(--paper-link);
}

@media (max-width: 1024px) {
  body {
    max-width: 860px;
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--pe-space-2xl);
    padding: var(--pe-space-2xl) var(--pe-space-lg) var(--pe-space-4xl);
  }

  nav#TOC {
    grid-column: 1;
    grid-row: auto;
    position: relative;
    top: auto;
    order: 2;
  }

  body > :not(header#title-block-header):not(nav#TOC) {
    grid-column: 1;
  }

  h2,
  h3,
  h4 {
    scroll-margin-top: 1rem;
  }
}

@media (max-width: 640px) {
  header#title-block-header {
    padding: var(--pe-space-2xl);
  }

  header#title-block-header .title {
    font-size: 2.2rem;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}