:root {
  color-scheme: dark;
  --bg: #181818;
  --panel: #1f1f1f;
  --raised: #2a2a2d;
  --line: #2a2a2a;
  --line-strong: #3a3a3a;
  --text: #e8e8ea;
  --muted: #a2a2aa;
  --faint: #6e6e77;
  --accent: #3d9be9;
  --accent-text: #77b9f0;
  --accent-soft: #1f3347;
  --code-bg: #1e1e1e;
  --sans: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", "Cascadia Code", Consolas, "SF Mono", ui-monospace, Menlo, monospace;
  --top: 52px;
  --page: 1280px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--top) + 16px); }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p a, li a, dd a { color: var(--accent-text); }
p a:hover, li a:hover, dd a:hover { text-decoration: underline; }
code, pre, kbd { font-family: var(--mono); font-size: 13px; }
p code, li code, dd code { color: var(--text); background: var(--panel); border: 1px solid var(--line); padding: 1px 5px; }
h1, h2, h3 { margin: 0; font-weight: 600; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
::selection { background: #264f78; }

.icon { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 10px; z-index: 20; padding: 6px 12px; background: var(--panel); border: 1px solid var(--line-strong); }

/* Top bar */
.top { position: sticky; top: 0; z-index: 10; height: var(--top); background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 12px; height: 100%; max-width: calc(var(--page) + 48px); margin: 0 auto; padding: 0 24px; }
.top-in.wide { max-width: none; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; }
.brand svg { width: 24px; height: 24px; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav .link { padding: 6px 12px; color: var(--muted); font-size: 14px; }
.nav .link:hover, .nav .link[aria-current="page"] { color: var(--text); }
.nav .key { margin-left: 8px; }

/* Keys: one outlined style; the main action differs only by a bold label and an accent icon, as in the app */
.keys { display: inline-flex; }
.keys .key + .key { margin-left: -1px; }
.key { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 34px; padding: 0 14px; border: 1px solid var(--line-strong); background: var(--panel); color: var(--text); font: inherit; font-size: 14px; white-space: nowrap; cursor: pointer; }
.key:hover { background: var(--raised); }
.key .icon { color: var(--muted); }
.key.main { font-weight: 600; }
.key.main .icon { color: var(--accent); }
.key[aria-disabled="true"] { color: var(--faint); background: transparent; cursor: default; }
.key[aria-disabled="true"] .icon { color: var(--faint); }
.key.square { width: 34px; padding: 0; }
.key.big { height: 44px; padding: 0 20px; font-size: 15px; }
.key.big .icon { width: 18px; height: 18px; }
/* The main action on the home page is the one solid block of the accent colour */
.key.main.big { background: var(--accent); border-color: var(--accent); color: #06121d; }
.key.main.big .icon { color: #06121d; stroke-width: 2.2; }
.key.main.big:hover { background: color-mix(in srgb, var(--accent), #fff 14%); border-color: color-mix(in srgb, var(--accent), #fff 14%); }
.key.main.big[aria-disabled="true"] { background: transparent; border-color: var(--line-strong); color: var(--faint); }
.key.main.big[aria-disabled="true"] .icon { color: var(--faint); }

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

/* Home: every block is centred in the page and laid out in its own way */
.hero, .showcase, .numbers, .feature, .more, .band-in, .get { width: min(var(--page), 100% - 48px); margin-left: auto; margin-right: auto; }
main h2 { font-family: var(--display); font-size: clamp(28px, 3.4vw, 40px); line-height: 1.1; letter-spacing: -0.025em; }
.aside { color: var(--faint); font-size: 13px; }

/* Hero: the lockup from the promo (logo, name, the tagline as if typed), then the demo over the game */
.hero { padding: 88px 0 0; text-align: center; }
.lockup { line-height: 0; color: #f0f0f2; }
.lockup svg { height: clamp(62px, 11vw, 132px); width: auto; max-width: 100%; }
.tagline { margin: 22px 0 0; color: var(--muted); font-family: var(--mono); font-size: clamp(14px, 1.6vw, 20px); }
.tagline i { display: inline-block; width: 0.56em; height: 1em; margin-left: 0.2em; vertical-align: -0.14em; background: var(--muted); animation: caret 1.1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.hero .lead { max-width: 58ch; margin: 22px auto 0; color: var(--muted); font-size: 17px; }
.hero .keys { margin: 34px 0 0; }
.hero .meta { margin: 16px 0 0; color: var(--faint); font-size: 13px; }

/* The demo plays over a blurred frame of the game it was recorded in, as it does in the video itself */
.showcase { position: relative; margin-top: 64px; padding: clamp(14px, 4.4vw, 64px); border: 1px solid var(--line); background: #0d1722 url("backdrop.jpg") center / cover; }
.showcase video { display: block; width: 100%; height: auto; border: 1px solid rgba(255, 255, 255, 0.14); background: #050505; box-shadow: 0 46px 120px rgba(0, 0, 0, 0.72), 0 10px 34px rgba(0, 0, 0, 0.5); }
.showcase .sound { position: absolute; right: clamp(22px, 5vw, 80px); bottom: clamp(22px, 5vw, 80px); height: 32px; background: rgba(12, 12, 14, 0.82); backdrop-filter: blur(8px); border-color: rgba(255, 255, 255, 0.2); font-size: 13px; }
.showcase .sound[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #06121d; font-weight: 600; }

/* Numbers: three results side by side, right under the screenshot */
.numbers { margin-top: 72px; text-align: center; }
.numbers dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; }
.numbers dl > div { padding: 4px 24px; border-left: 1px solid var(--line); }
.numbers dl > div:first-child { border-left: 0; }
.numbers dd { margin: 0; font-family: var(--display); font-size: clamp(44px, 6.4vw, 84px); font-weight: 600; line-height: 1; letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.numbers dd small { margin-left: 2px; color: var(--faint); font-size: 0.42em; letter-spacing: -0.02em; }
.numbers dt { margin-top: 12px; color: var(--muted); }
.numbers dt a { color: var(--accent-text); }
.numbers dt a:hover { text-decoration: underline; }
.numbers .aside { max-width: 70ch; margin: 28px auto 0; }

/* A feature: a picture of it and a few words, on alternating sides */
.feature { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px 72px; align-items: center; margin-top: 136px; }
.feature.flip { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.feature.flip > :first-child { order: 2; }
.feature > img, .feature > .session { border: 1px solid var(--line-strong); box-shadow: 0 34px 90px rgba(0, 0, 0, 0.55), 0 8px 24px rgba(0, 0, 0, 0.35); }
.feature p { max-width: 44ch; margin: 16px 0 0; color: var(--muted); font-size: 16px; }
.feature .aside { font-size: 13px; color: var(--faint); }
.numbers + .feature { margin-top: 128px; }

/* The smaller features: six cells in one outlined block */
.more { margin-top: 136px; }
.more h2 { text-align: center; }
.more ul { display: grid; grid-template-columns: repeat(3, 1fr); margin: 44px 0 0; padding: 0; list-style: none; border: 1px solid var(--line); background: var(--panel); }
.more li { padding: 28px 28px 30px; border-left: 1px solid var(--line); border-top: 1px solid var(--line); }
.more li:nth-child(3n + 1) { border-left: 0; }
.more li:nth-child(-n + 3) { border-top: 0; }
.more li { transition: background-color 0.15s; }
.more li:hover { background: var(--raised); }
.more .icon { box-sizing: border-box; width: 42px; height: 42px; padding: 10px; border: 1px solid color-mix(in srgb, var(--accent), transparent 55%); background: var(--accent-soft); color: var(--accent-text); }
.more h3 { margin: 18px 0 4px; font-size: 17px; }
.more p { margin: 0; color: var(--muted); font-size: 14px; }

/* The API: a full-width band with the reference's groups as an index */
.band { margin-top: 136px; padding: 88px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--panel); text-align: center; }
.band .lead { margin: 14px 0 0; color: var(--muted); font-size: 16px; }
.groups { margin: 44px 0 0; padding: 0; list-style: none; columns: 4; column-gap: 40px; text-align: left; }
.groups li { break-inside: avoid; }
.groups a { display: flex; align-items: baseline; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--text); font-size: 14px; }
.groups a:hover { color: var(--accent-text); border-bottom-color: var(--accent); text-decoration: none; }
.groups .count { margin-left: auto; color: var(--faint); font-family: var(--mono); font-size: 12px; }
.band .key { margin-top: 44px; }

/* An example agent session: the question, the tool calls it made, the answer */
.session { border: 1px solid var(--line-strong); background: var(--code-bg); font-size: 14px; }
.session-head { display: flex; align-items: center; height: 32px; padding: 0 14px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 12px; }
.session .ask, .session .answer { max-width: none; margin: 0; padding: 14px; color: var(--text); font-size: 14px; }
.session .ask { font-family: var(--mono); font-size: 13px; }
.session .ask::before { content: "\203A"; margin-right: 10px; color: var(--accent-text); }
.calls { margin: 0; padding: 0 14px; list-style: none; }
.calls li { display: grid; grid-template-columns: 11.5em minmax(0, 1fr) auto; gap: 12px; align-items: baseline; padding: 7px 0; border-top: 1px solid var(--line); color: var(--muted); }
.calls code { color: var(--text); background: none; border: 0; padding: 0; }
.calls li span:last-child { color: var(--faint); font-size: 13px; }
.session .answer { border-top: 1px solid var(--line); }
.band + .feature { margin-top: 120px; }

/* Download: the mushroom drawn in Luau code (the promo's logo drop), then the button and the three steps in a row */
.ascii { display: inline-block; margin: 0 0 44px; font: clamp(5px, 1.45vw, 13px) / 1.16 var(--mono); text-align: left; color: var(--text); user-select: none; }
.ascii i { font-style: normal; }
.ascii .c { color: var(--accent); }
.ascii .d, .ascii .s { color: #fff; font-weight: 700; }
.get { margin-top: 136px; text-align: center; }
.get .lead { margin: 14px 0 0; color: var(--muted); font-size: 16px; }
.get > .key { margin-top: 30px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 64px 0 0; padding: 0; list-style: none; counter-reset: step; text-align: left; border-top: 1px solid var(--line); }
.steps li { padding: 22px 28px 0 0; counter-increment: step; color: var(--muted); }
.steps li + li { padding-left: 28px; border-left: 1px solid var(--line); }
.steps li::before { content: counter(step); display: block; margin-bottom: 8px; color: var(--text); font-family: var(--display); font-size: 28px; font-weight: 600; line-height: 1; }
.get .aside { max-width: 70ch; margin: 44px auto 0; }

.foot { margin-top: 136px; border-top: 1px solid var(--line); }
.foot-in { display: flex; align-items: center; gap: 24px; max-width: calc(var(--page) + 48px); margin: 0 auto; padding: 28px 24px 40px; color: var(--faint); font-size: 13px; }
.foot-brand { color: var(--text); font-weight: 600; }
.foot nav { display: flex; gap: 20px; margin-left: auto; }
.foot a:hover { color: var(--text); }

@media (max-width: 900px) {
  .feature, .feature.flip, .numbers + .feature, .band + .feature { grid-template-columns: minmax(0, 1fr); margin-top: 96px; }
  .feature.flip > :first-child { order: 0; }
  .more, .band, .get { margin-top: 96px; }
  .more ul { grid-template-columns: repeat(2, 1fr); }
  .more li:nth-child(3n + 1) { border-left: 1px solid var(--line); }
  .more li:nth-child(-n + 3) { border-top: 1px solid var(--line); }
  .more li:nth-child(2n + 1) { border-left: 0; }
  .more li:nth-child(-n + 2) { border-top: 0; }
  .groups { columns: 2; }
  .band { padding: 64px 0; }
}
@media (max-width: 560px) {
  .hero, .showcase, .numbers, .feature, .more, .band-in, .get { width: calc(100% - 32px); }
  .top-in, .foot-in { padding-left: 16px; padding-right: 16px; }
  .nav .link { padding: 6px 8px; }
  .hero { padding-top: 56px; }
  .hero .lead { font-size: 16px; }
  .showcase { margin-top: 44px; }
  .showcase .sound { right: 20px; bottom: 20px; height: 26px; padding: 0 9px; font-size: 12px; }
  .numbers { margin-top: 56px; }
  .numbers dl { grid-template-columns: 1fr; gap: 28px; }
  .numbers dl > div { border-left: 0; }
  .more ul { grid-template-columns: 1fr; }
  .more li, .more li:nth-child(n) { border-left: 0; border-top: 1px solid var(--line); padding: 22px 20px 24px; }
  .more li:first-child { border-top: 0; }
  .groups { columns: 1; }
  .calls li { grid-template-columns: minmax(0, 1fr) auto; }
  .calls li span:nth-child(2) { display: none; }
  .steps { grid-template-columns: 1fr; border-top: 0; margin-top: 44px; }
  .steps li, .steps li + li { padding: 18px 0; border-left: 0; border-top: 1px solid var(--line); }
  .foot-in { flex-direction: column; align-items: flex-start; gap: 12px; }
  .foot nav { margin-left: 0; }
}

/* Docs */
.docs { display: grid; grid-template-columns: 272px minmax(0, 1fr); }
.side { position: sticky; top: var(--top); height: calc(100vh - var(--top)); overflow-y: auto; padding: 12px 8px 40px; border-right: 1px solid var(--line); scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.search { display: flex; align-items: center; gap: 8px; height: 32px; margin: 0 4px 12px; padding: 0 10px; background: var(--panel); border: 1px solid var(--line); color: var(--faint); }
.search:focus-within { border-color: var(--accent); }
.search input { flex: 1; min-width: 0; height: 100%; border: 0; background: none; color: var(--text); font: inherit; font-size: 14px; outline: none; }
.search input::placeholder { color: var(--faint); }
.search input::-webkit-search-cancel-button { display: none; }
.search kbd { padding: 0 5px; border: 1px solid var(--line-strong); color: var(--faint); font-size: 11px; line-height: 16px; }

.toc a, .toc summary { display: flex; align-items: center; gap: 8px; min-height: 28px; padding: 2px 8px; color: var(--muted); font-size: 14px; cursor: pointer; }
.toc a:hover, .toc summary:hover { background: var(--panel); color: var(--text); }
.toc summary { list-style: none; color: var(--text); user-select: none; }
.toc summary::-webkit-details-marker { display: none; }
.toc .chev { width: 14px; height: 14px; color: var(--faint); }
.toc details:not([open]) .chev { transform: rotate(-90deg); }
.toc .count { margin-left: auto; color: var(--faint); font-family: var(--mono); font-size: 12px; }
.toc details a { padding-left: 30px; font-family: var(--mono); font-size: 13px; }
.toc .top-link { padding-left: 30px; color: var(--text); }
.toc a.on { background: var(--raised); color: var(--text); }

.doc { max-width: 820px; padding: 48px 56px 160px; }
.doc h1 { font-size: 32px; letter-spacing: -0.02em; }
.doc .lead { margin: 10px 0 0; color: var(--muted); font-size: 16px; }
.facts { display: grid; grid-template-columns: max-content 1fr; margin: 32px 0 0; border-top: 1px solid var(--line); }
.facts dt, .facts dd { margin: 0; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.facts dt { padding-right: 32px; color: var(--muted); }

.group { margin-top: 88px; }
.group > h2 { font-size: 24px; letter-spacing: -0.01em; }
.group > p { margin: 6px 0 0; color: var(--muted); }

.fn { margin-top: 44px; }
.fn-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; }
.fn h3 { font-family: var(--mono); font-size: 17px; }
.fn h3 a:hover { color: var(--accent-text); }
.fn .aka { color: var(--faint); font-size: 13px; }
.fn > p { margin: 10px 0 0; }

.sig, .code { margin: 12px 0 0; padding: 10px 14px; background: var(--code-bg); border: 1px solid var(--line); color: #dcdfe4; line-height: 1.55; white-space: pre; tab-size: 4; overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--line-strong) transparent; }
.example { margin-top: 14px; background: var(--code-bg); border: 1px solid var(--line); }
.example-head { display: flex; align-items: center; height: 32px; padding: 0 4px 0 14px; border-bottom: 1px solid var(--line); color: var(--faint); font-size: 12px; }
.copy { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; margin-left: auto; border: 0; background: none; color: var(--faint); cursor: pointer; }
.copy:hover { background: var(--raised); color: var(--text); }
.copy.done { color: #4cc47a; }
.example .code { margin: 0; border: 0; }

.params { display: grid; grid-template-columns: fit-content(36%) minmax(0, 1fr); gap: 6px 20px; margin: 14px 0 0; font-size: 14px; }
.params dt { font-family: var(--mono); font-size: 13px; }
.params .type { margin-left: 8px; color: var(--faint); }
.params dd { margin: 0; color: var(--muted); }

.note { display: flex; gap: 10px; margin: 14px 0 0; color: var(--muted); font-size: 14px; }
.note .icon { margin-top: 3px; color: var(--faint); }

.empty { margin-top: 48px; color: var(--muted); }

/* Luau colours, the same as the editor */
.k { color: #c678dd; }
.s { color: #98c379; }
.c { color: #5c6370; font-style: italic; }
.n { color: #d19a66; }
.f { color: #61afef; }
.g { color: #e5c07b; }

.side-toggle, .backdrop { display: none; }

@media (max-width: 900px) {
  .docs { grid-template-columns: minmax(0, 1fr); }
  .side-toggle { display: inline-flex; }
  .side { position: fixed; z-index: 12; top: var(--top); left: 0; width: min(300px, 86vw); background: var(--bg); visibility: hidden; transform: translateX(-100%); }
  .side-open .side { visibility: visible; transform: none; }
  .side-open .backdrop { display: block; position: fixed; inset: var(--top) 0 0 0; z-index: 11; background: rgba(0, 0, 0, 0.5); }
  .doc { padding: 36px 24px 120px; }
}
@media (max-width: 560px) {
  .doc { padding: 28px 16px 100px; }
  .doc h1 { font-size: 28px; }
  .facts { grid-template-columns: 1fr; }
  .facts dt { padding-bottom: 0; border-bottom: 0; }
  .params { grid-template-columns: 1fr; gap: 2px; }
  .params dd { margin-bottom: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .tagline i { animation: none; }
  .more li { transition: none; }
}