@font-face{font-family:"Geist Variable";font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/geist-latin-wght-normal.woff2) format("woff2")}@font-face{font-family:"Geist Mono Variable";font-style:normal;font-weight:100 900;font-display:swap;src:url(fonts/geist-mono-latin-wght-normal.woff2) format("woff2")}@font-face{font-family:"Instrument Serif";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/instrument-serif-latin-400-normal.woff2) format("woff2")}@font-face{font-family:"Instrument Serif";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/instrument-serif-latin-400-italic.woff2) format("woff2")}
:root{color-scheme:light;--font-text:"Geist Variable", system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono:"Geist Mono Variable", ui-monospace, Menlo, monospace;--text-12:0.75rem;--text-13:0.8125rem;--text-15:0.9375rem;--text-17:1.0625rem;--text-20:1.25rem;--text-24:1.5rem;--text-32:2rem;--text-44:2.75rem;--text-64:4rem;--space-4:0.25rem;--space-8:0.5rem;--space-12:0.75rem;--space-16:1rem;--space-24:1.5rem;--space-32:2rem;--space-48:3rem;--space-64:4rem;--space-96:6rem;--radius-card:16px;--radius-box:12px;--radius-control:10px;--radius-pill:999px;--time-fast:120ms;--time-base:200ms;--time-slow:320ms;--ease:cubic-bezier(0.16, 1, 0.3, 1);--color-bg:#f4f6f8;--color-bg-sunk:#eceff3;--color-surface:#ffffff;--color-surface-2:#f8fafb;--color-line:rgb(15 23 32 / 0.08);--color-line-strong:rgb(15 23 32 / 0.16);--color-ink:#0d1219;--color-ink-2:#4a5564;--color-ink-3:#5f6b7c;--color-accent:#0fa97a;--color-accent-2:#0b8f8c;--color-accent-strong:#088060;--color-accent-strong-2:#07727a;--color-on-accent:#ffffff;--color-accent-ink:#087a58;--color-ai:#6d5cf6;--color-on-ai:#ffffff;--color-ai-ink:#5343d6;--color-wait-ink:#8a5a00;--color-wait:#d99724;--color-alert:#c93a25;--color-on-alert:#ffffff;--color-alert-ink:#b3311f;--shadow-1:0 1px 2px rgb(15 23 32 / 0.04), 0 8px 24px -6px rgb(15 23 32 / 0.08);--shadow-2:0 2px 4px rgb(15 23 32 / 0.05), 0 18px 44px -12px rgb(15 23 32 / 0.16);}@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--color-bg:#0a0c10;--color-bg-sunk:#0e1116;--color-surface:#12161c;--color-surface-2:#171c24;--color-line:rgb(255 255 255 / 0.07);--color-line-strong:rgb(255 255 255 / 0.15);--color-ink:#eef2f6;--color-ink-2:#a3adba;--color-ink-3:#8892a0;--color-accent:#22c997;--color-accent-2:#17b3b0;--color-accent-strong:#22c997;--color-accent-strong-2:#17b3b0;--color-on-accent:#04130e;--color-accent-ink:#4fdcb0;--color-ai:#8f81ff;--color-on-ai:#0d0a24;--color-ai-ink:#b3a9ff;--color-wait-ink:#e6b450;--color-wait:#e6b450;--color-alert:#ff7a66;--color-on-alert:#2a0803;--color-alert-ink:#ff9484;--shadow-1:0 1px 0 rgb(255 255 255 / 0.03) inset, 0 10px 30px -10px rgb(0 0 0 / 0.6);--shadow-2:0 1px 0 rgb(255 255 255 / 0.05) inset, 0 24px 60px -16px rgb(0 0 0 / 0.75);}}:root[data-theme="dark"]{color-scheme:dark;--color-bg:#0a0c10;--color-bg-sunk:#0e1116;--color-surface:#12161c;--color-surface-2:#171c24;--color-line:rgb(255 255 255 / 0.07);--color-line-strong:rgb(255 255 255 / 0.15);--color-ink:#eef2f6;--color-ink-2:#a3adba;--color-ink-3:#8892a0;--color-accent:#22c997;--color-accent-2:#17b3b0;--color-accent-strong:#22c997;--color-accent-strong-2:#17b3b0;--color-on-accent:#04130e;--color-accent-ink:#4fdcb0;--color-ai:#8f81ff;--color-on-ai:#0d0a24;--color-ai-ink:#b3a9ff;--color-wait-ink:#e6b450;--color-wait:#e6b450;--color-alert:#ff7a66;--color-on-alert:#2a0803;--color-alert-ink:#ff9484;--shadow-1:0 1px 0 rgb(255 255 255 / 0.03) inset, 0 10px 30px -10px rgb(0 0 0 / 0.6);--shadow-2:0 1px 0 rgb(255 255 255 / 0.05) inset, 0 24px 60px -16px rgb(0 0 0 / 0.75);}.pp-scope-dark{color-scheme:dark;--color-bg:#0a0c10;--color-bg-sunk:#0e1116;--color-surface:#12161c;--color-surface-2:#171c24;--color-line:rgb(255 255 255 / 0.07);--color-line-strong:rgb(255 255 255 / 0.15);--color-ink:#eef2f6;--color-ink-2:#a3adba;--color-ink-3:#8892a0;--color-accent:#22c997;--color-accent-2:#17b3b0;--color-accent-strong:#22c997;--color-accent-strong-2:#17b3b0;--color-on-accent:#04130e;--color-accent-ink:#4fdcb0;--color-ai:#8f81ff;--color-on-ai:#0d0a24;--color-ai-ink:#b3a9ff;--color-wait-ink:#e6b450;--color-wait:#e6b450;--color-alert:#ff7a66;--color-on-alert:#2a0803;--color-alert-ink:#ff9484;--shadow-1:0 1px 0 rgb(255 255 255 / 0.03) inset, 0 10px 30px -10px rgb(0 0 0 / 0.6);--shadow-2:0 1px 0 rgb(255 255 255 / 0.05) inset, 0 24px 60px -16px rgb(0 0 0 / 0.75);}
/*
 * The help site, in the website's look: its tokens (written above this file at build time, light
 * and dark), Geist for text, Instrument Serif for display, the same greens and violet.
 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 5rem;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(
      60rem 28rem at 85% -12rem,
      color-mix(in srgb, var(--color-accent) 10%, transparent),
      transparent
    ),
    var(--color-bg);
  color: var(--color-ink);
  font: 400 1rem/1.65 var(--font-text);
  font-feature-settings: "ss01";
}

a {
  color: var(--color-accent-ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.skip {
  position: absolute;
  z-index: 50;
  top: -4rem;
  left: 1rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-control);
  background: var(--color-ink);
  color: var(--color-bg);
}

.skip:focus {
  top: 1rem;
}

/* ───────────── The bar ───────────── */

.bar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  gap: var(--space-24);
  height: 4rem;
  padding: 0 clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  color: var(--color-ink);
  font-size: var(--text-20);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand svg {
  width: auto;
  height: 1.75rem;
}

.brand em {
  margin-left: 2px;
  color: var(--color-accent-ink);
  font-family: "Instrument Serif", Georgia, serif;
  font-size: var(--text-24);
  font-weight: 400;
}

.bar-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-left: auto;
}

.bar-links a {
  padding: var(--space-8) var(--space-12);
  border-radius: var(--radius-pill);
  color: var(--color-ink-2);
  font-size: var(--text-13);
  font-weight: 550;
  text-decoration: none;
  transition: background var(--time-base) var(--ease);
}

.bar-links a:hover {
  background: var(--color-line);
  color: var(--color-ink);
}

.bar-links .cta,
.bar-links .cta:hover {
  background: linear-gradient(135deg, var(--color-accent-strong), var(--color-accent-strong-2));
  box-shadow: 0 6px 20px -8px color-mix(in srgb, var(--color-accent) 70%, transparent);
  color: var(--color-on-accent);
  font-weight: 650;
}

.menu {
  display: none;
  min-height: 2.25rem;
  padding: 0 var(--space-12);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-ink);
  font: 600 var(--text-13) / 1 var(--font-text);
}

/* ───────────── Layout ───────────── */

.layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 92rem;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
}

.layout.with-toc {
  grid-template-columns: 15rem minmax(0, 1fr) 13rem;
}

.side,
.toc {
  position: sticky;
  top: 4rem;
  align-self: start;
  max-height: calc(100dvh - 4rem);
  overflow: auto;
  padding: var(--space-32) 0;
}

.side-group,
.toc p,
.crumb {
  margin: var(--space-24) 0 var(--space-8);
  color: var(--color-ink-3);
  font: 550 0.6875rem/1.4 var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.side-group:first-child {
  margin-top: 0;
}

.side ul,
.toc ul {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.side a {
  display: block;
  padding: 6px var(--space-12);
  border-radius: var(--radius-control);
  color: var(--color-ink-2);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    background var(--time-base) var(--ease),
    color var(--time-base) var(--ease);
}

.side a:hover {
  background: var(--color-line);
  color: var(--color-ink);
}

.side a[aria-current="page"] {
  background: var(--color-surface);
  box-shadow:
    inset 3px 0 0 var(--color-accent),
    var(--shadow-1);
  color: var(--color-ink);
  font-weight: 650;
}

main {
  min-width: 0;
  padding: var(--space-32) 0 var(--space-64);
}

.crumb {
  margin-top: var(--space-8);
  color: var(--color-accent-ink);
}

/* ───────────── Reading ───────────── */

article {
  max-width: 48rem;
  animation: rise 600ms var(--ease) both;
}

article h1 {
  margin: var(--space-4) 0 var(--space-24);
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.02;
  text-wrap: balance;
}

article h2 {
  position: relative;
  margin: var(--space-48) 0 var(--space-12);
  font-size: var(--text-24);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

article h3 {
  margin: var(--space-32) 0 var(--space-8);
  font-size: var(--text-17);
  font-weight: 650;
}

.anchor {
  position: absolute;
  left: -1.25rem;
  color: var(--color-ink-3);
  font-weight: 400;
  text-decoration: none;
  opacity: 0;
  transition: opacity var(--time-base) var(--ease);
}

article h2:hover .anchor {
  opacity: 1;
}

article p,
article li {
  color: color-mix(in srgb, var(--color-ink) 88%, var(--color-ink-2));
  text-wrap: pretty;
}

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

article li + li {
  margin-top: var(--space-4);
}

article li::marker {
  color: var(--color-accent);
}

article strong {
  color: var(--color-ink);
  font-weight: 650;
}

article blockquote {
  margin: var(--space-24) 0;
  padding: var(--space-12) var(--space-16);
  border: 1px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
  border-radius: var(--radius-box);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface));
}

article blockquote p {
  margin: 0;
}

code {
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--color-bg-sunk);
  font-family: var(--font-mono);
  font-size: 0.875em;
}

pre {
  position: relative;
  margin: var(--space-24) 0;
  padding: var(--space-16) 5rem var(--space-16) var(--space-16);
  overflow-x: auto;
  border: 1px solid rgb(255 255 255 / 0.08);
  border-radius: var(--radius-box);
  background: #0a0c10;
  color: #eef2f6;
  font-size: var(--text-13);
  line-height: 1.6;
}

pre code {
  padding: 0;
  background: none;
  color: inherit;
}

pre .copy {
  position: absolute;
  top: var(--space-8);
  right: var(--space-8);
  min-height: 1.75rem;
  padding: 0 var(--space-12);
  border: 1px solid rgb(255 255 255 / 0.15);
  border-radius: var(--radius-pill);
  background: rgb(255 255 255 / 0.06);
  color: #eef2f6;
  font: 600 var(--text-12) / 1 var(--font-text);
  cursor: pointer;
}

.table {
  margin: var(--space-24) 0;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-box);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.table th {
  background: var(--color-surface-2);
  color: var(--color-ink-2);
  font-size: var(--text-12);
  font-weight: 650;
  letter-spacing: 0.02em;
  text-align: left;
}

.table th,
.table td {
  padding: var(--space-8) var(--space-12);
  vertical-align: top;
}

.table tr + tr td {
  border-top: 1px solid var(--color-line);
}

.mermaid {
  margin: var(--space-24) 0;
  padding: var(--space-16);
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-box);
  background: var(--color-surface);
  text-align: center;
}

/* ───────────── Next, previous, on this page ───────────── */

.pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-12);
  max-width: 48rem;
  margin-top: var(--space-64);
}

.pager a {
  display: grid;
  gap: 2px;
  padding: var(--space-16) var(--space-24);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  color: var(--color-ink);
  font-weight: 650;
  text-decoration: none;
  transition:
    border-color var(--time-base) var(--ease),
    transform var(--time-slow) var(--ease);
}

.pager a:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
  transform: translateY(-2px);
}

.pager small {
  color: var(--color-ink-3);
  font-size: var(--text-12);
  font-weight: 500;
}

.pager-next {
  grid-column: 2;
  text-align: right;
}

.toc ul {
  border-left: 1px solid var(--color-line);
}

.toc a {
  display: block;
  margin-left: -1px;
  padding: 4px var(--space-12);
  border-left: 2px solid transparent;
  color: var(--color-ink-3);
  font-size: var(--text-13);
  text-decoration: none;
  transition:
    color var(--time-base) var(--ease),
    border-color var(--time-base) var(--ease);
}

.toc a:hover,
.toc a[data-active] {
  border-left-color: var(--color-accent);
  color: var(--color-ink);
}

/* ───────────── The home page ───────────── */

.hero {
  position: relative;
  isolation: isolate;
  margin: var(--space-8) 0 var(--space-32);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 5vw, 4rem);
  overflow: hidden;
  border-radius: 24px;
  background:
    radial-gradient(34rem 22rem at 85% 0%, rgb(143 129 255 / 0.28), transparent 70%),
    radial-gradient(30rem 20rem at 0% 100%, rgb(34 201 151 / 0.22), transparent 70%), #05070a;
  color: #eef2f6;
}

/* A slow drifting grid behind the hero, like the website's vault. */
.hero::before {
  position: absolute;
  z-index: -1;
  inset: -50%;
  background-image:
    linear-gradient(rgb(255 255 255 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  mask-image: radial-gradient(closest-side, #000, transparent);
  animation: drift 40s linear infinite;
  transform: perspective(600px) rotateX(55deg);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  margin: 0;
  color: #4fdcb0;
  font: 550 var(--text-12) / 1 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.kicker i {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #22c997;
  box-shadow: 0 0 12px #22c997;
}

.hero h1 {
  margin: var(--space-16) 0;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

.hero h1 em {
  background: linear-gradient(100deg, #8f81ff, #22c997);
  background-clip: text;
  color: transparent;
}

.hero .lede {
  max-width: 40rem;
  color: #a3adba;
  font-size: var(--text-17);
}

.hero .lede blockquote {
  display: inline-block;
  margin: var(--space-8) 0 0;
  padding: var(--space-8) var(--space-12);
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: var(--radius-pill);
  background: rgb(255 255 255 / 0.04);
  font-size: var(--text-13);
}

.hero .lede blockquote p {
  margin: 0;
}

.cards-group h2 {
  margin: var(--space-48) 0 var(--space-12);
  font-size: var(--text-20);
  letter-spacing: -0.02em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: var(--space-12);
}

.card {
  display: grid;
  align-content: start;
  gap: var(--space-4);
  padding: var(--space-16) var(--space-24);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  color: var(--color-ink);
  text-decoration: none;
  transition:
    border-color var(--time-base) var(--ease),
    transform var(--time-slow) var(--ease),
    box-shadow var(--time-slow) var(--ease);
  animation: rise 600ms calc(var(--i) * 50ms) var(--ease) both;
}

.card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
  box-shadow: var(--shadow-2);
  transform: translateY(-3px);
}

.card b {
  font-size: var(--text-15);
  font-weight: 650;
}

.card span {
  color: var(--color-ink-2);
  font-size: var(--text-13);
}

/* ───────────── The foot ───────────── */

.foot {
  padding: var(--space-32) clamp(1rem, 3vw, 2rem);
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-3);
  font-size: var(--text-12);
  text-align: center;
}

.foot p {
  max-width: 60rem;
  margin: var(--space-4) auto;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(0.75rem);
  }
}

@keyframes drift {
  to {
    background-position: 0 480px;
  }
}

/* ───────────── Narrower screens ───────────── */

@media (max-width: 80rem) {
  .layout.with-toc {
    grid-template-columns: 15rem minmax(0, 1fr);
  }

  .toc {
    display: none;
  }
}

@media (max-width: 56rem) {
  .layout,
  .layout.with-toc {
    grid-template-columns: minmax(0, 1fr);
  }

  .menu {
    display: inline-flex;
    align-items: center;
  }

  .side {
    position: fixed;
    z-index: 15;
    inset: 4rem 0 0;
    display: none;
    max-height: none;
    padding: var(--space-16) clamp(1rem, 3vw, 2rem) var(--space-48);
    background: var(--color-bg);
  }

  body.menu-open .side {
    display: block;
  }

  .bar-links a:not(.cta) {
    display: none;
  }

  .anchor {
    display: none;
  }
}

@media (max-width: 30rem) {
  .bar {
    gap: var(--space-8);
  }

  .brand em {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before {
    animation: none !important;
    transition: none !important;
  }
}