/* probl.dev: the home page and the guide. The colors of Probl's tokens are
   the playground's. */

:root {
  --page: #f6f5f1;
  --raised: #ffffff;
  --sunken: #efece3;
  --text: #1d1f22;
  --muted: #4f555e;
  --faint: #868b94;
  --line: #dddbd3;
  --accent: #2458c6;
  --accent-text: #ffffff;
  --accent-soft: rgb(36 88 198 / 0.09);
  --warm: #c4661f;
  --warm-bar: #e39a52;
  --error: #b3261e;
  --keyword: #8739b8;
  --number: #1a7f5a;
  --string: #a6541b;
  --comment: #7c828c;
  --type: #1f6fa8;
  --function: #3d4ea6;
  --meta: #b0306e;
  --operator: #5b616b;
  --shadow: 0 1px 2px rgb(30 28 20 / 0.05), 0 14px 36px rgb(30 28 20 / 0.08);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #111317;
    --raised: #1b1e24;
    --sunken: #16181d;
    --text: #e6e8eb;
    --muted: #b4bac3;
    --faint: #848b95;
    --line: #2d3139;
    --accent: #6d9cf2;
    --accent-text: #0f1726;
    --accent-soft: rgb(109 156 242 / 0.12);
    --warm: #f0b37e;
    --warm-bar: #d99460;
    --error: #ff8a80;
    --keyword: #c792ea;
    --number: #7fd4a8;
    --string: #f0b37e;
    --comment: #7f8791;
    --type: #7cc4f0;
    --function: #9fb0ff;
    --meta: #f08bbd;
    --operator: #a6adb8;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 18px 44px rgb(0 0 0 / 0.35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 0.16em; }
code { font-family: var(--mono); font-size: 0.88em; }
:not(pre) > code { background: var(--sunken); border-radius: 5px; padding: 0.1em 0.32em; white-space: nowrap; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

.skip { position: absolute; left: 12px; top: -48px; z-index: 30; padding: 8px 14px; border-radius: 8px; background: var(--accent); color: var(--accent-text); }
.skip:focus { top: 12px; }

/* ── The bar at the top ── */
.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--page) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text); text-decoration: none; font-weight: 750; font-size: 20px; letter-spacing: -0.02em; }
.brand svg { width: 28px; height: 28px; }
.brand path { fill: none; stroke: var(--accent); stroke-linecap: round; }
.brand .thin { stroke-width: 1.8; }
.brand .thick { stroke-width: 3.2; }
.brand circle { fill: var(--accent); }
.top nav { display: flex; align-items: center; gap: 6px; }
.top nav a:not(.button) { color: var(--muted); text-decoration: none; font-size: 15px; padding: 6px 10px; border-radius: 7px; }
.top nav a:not(.button):hover, .top nav a[aria-current] { color: var(--text); background: var(--accent-soft); }
.github-link { display: inline-flex; align-items: center; gap: 7px; }
.github-link svg { width: 18px; height: 18px; fill: currentColor; flex-shrink: 0; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 620;
  font-size: 16px;
  text-decoration: none;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgb(36 88 198 / 0.25); }
.button.quiet { background: var(--raised); color: var(--text); border-color: var(--line); }
.button.quiet:hover { box-shadow: var(--shadow); }
.button.small { padding: 6px 13px; font-size: 14.5px; border-radius: 8px; margin-left: 6px; }

/* ── The hero ── */
.hero { position: relative; overflow: hidden; padding: 84px 0 96px; border-bottom: 1px solid var(--line); }
.hero .worlds {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  stroke: var(--warm-bar);
  stroke-linecap: round;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(100deg, transparent 2%, #000 30%, #000 60%, transparent 98%);
  mask-image: linear-gradient(100deg, transparent 2%, #000 30%, #000 60%, transparent 98%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(46px, 6.4vw, 82px); line-height: 1.02; letter-spacing: -0.04em; font-weight: 780; margin: 0 0 24px; }
.lede { font-size: clamp(18px, 1.6vw, 20.5px); line-height: 1.55; color: var(--muted); margin: 0 0 30px; max-width: 34em; }
.lede code { color: var(--text); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.install { margin-top: 24px; }
.install p { margin: 0 0 8px; font-size: 14px; color: var(--muted); }
.install pre.shell { display: block; width: fit-content; max-width: 100%; margin: 0 0 6px; font-size: 14px; overflow-x: auto; }
.install pre.shell code { padding: 0; border: none; background: none; font-size: inherit; white-space: pre; }
.install-requirement { font-size: 12.5px; color: var(--muted); }
.note { font-size: 14.5px; color: var(--faint); margin: 20px 0 0; max-width: 32em; }
.caption { font-size: 14.5px; color: var(--muted); margin: 14px 4px 0; }

/* ── Programs, as an editor shows them ── */
.program { margin: 0; min-width: 0; background: var(--raised); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.program figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 9px 16px; border-bottom: 1px solid var(--line); font-size: 13px; }
.program .file { font-family: var(--mono); color: var(--faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.program .file span { font-family: var(--sans); }
.open { font-size: 13px; font-weight: 560; text-decoration: none; white-space: nowrap; }
.open::after { content: " →"; }
.open:hover { text-decoration: underline; }

pre { margin: 0; font: 13.5px/1.62 var(--mono); tab-size: 2; }
pre.code { padding: 14px 0; overflow-x: auto; counter-reset: line; }
/* A line too long for its box wraps 4 characters further in than it starts. */
pre.code .line {
  --hang: calc(var(--indent, 0ch) + 4ch);
  display: block;
  min-height: 1.62em;
  position: relative;
  padding: 0 20px 0 calc(54px + var(--hang));
  text-indent: calc(-1 * var(--hang));
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
pre.code .line::before { counter-increment: line; content: counter(line); position: absolute; left: 0; width: 36px; text-align: right; color: var(--faint); opacity: 0.6; }
pre.output { padding: 12px 18px 14px; background: var(--sunken); overflow-x: auto; white-space: pre; container-type: inline-size; }
/* A report too long for its box wraps at its ` · ` separators, under its
   values, as in the playground. */
pre.output .report {
  --indent: min(var(--hang), 40cqw);
  display: block;
  min-height: 1.62em;
  white-space: pre-wrap;
  padding-left: var(--indent);
  text-indent: calc(-1 * var(--indent));
}
pre.output .item { white-space: pre; }
.program.split { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
.program.split figcaption { grid-column: 1 / -1; }
.program.split pre.code + pre.output { border-top: none; border-left: 1px solid var(--line); padding-top: 14px; }
.program pre.code + pre.output { border-top: 1px solid var(--line); }
pre.output .how { color: var(--faint); }
/* Tighter, so that the lines drawn around the program join up. */
pre.output.error { color: var(--muted); line-height: 1.28; }
pre.output.error .what { color: var(--error); font-weight: 600; }

.tok-keyword { color: var(--keyword); }
.tok-number { color: var(--number); }
.tok-string { color: var(--string); }
.tok-comment { color: var(--comment); font-style: italic; }
.tok-type { color: var(--type); }
.tok-function { color: var(--function); }
.tok-meta { color: var(--meta); }
.tok-operator { color: var(--operator); }

/* ── Sections ── */
.section { padding: 104px 0; }
.section + .section { border-top: 1px solid var(--line); }
.kicker { margin: 0 0 12px; color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; }
.section h2 { font-size: clamp(31px, 4vw, 46px); line-height: 1.08; letter-spacing: -0.03em; font-weight: 760; margin: 0 0 18px; max-width: 20em; }
.intro { font-size: clamp(17.5px, 1.5vw, 19.5px); line-height: 1.58; color: var(--muted); margin: 0 0 16px; max-width: 40em; }
.section p { max-width: 40em; }
h3 { font-size: 19px; letter-spacing: -0.012em; line-height: 1.3; margin: 0 0 8px; }

.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px; align-items: center; }
.two.evidence { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); }
.two.start { align-items: start; }
.two + .program, .chart + .program { margin-top: 44px; }
#try .two { margin-top: 44px; }

/* How it works: three steps, each with its picture. */
.steps { list-style: none; padding: 0; margin: 60px 0 0; display: grid; gap: 64px; }
.steps li { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 64px; align-items: center; }
.steps li + li { padding-top: 64px; border-top: 1px dashed var(--line); }
.steps p { color: var(--muted); margin: 0 0 12px; }
.step { display: inline-grid; place-items: center; width: 26px; height: 26px; margin-right: 6px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 14px; font-weight: 700; vertical-align: 2px; }
.visual { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.visual .program { box-shadow: none; }

.branches { display: flex; gap: 8px; }
.branch { flex: 0 0 calc(var(--w) - 4px); min-width: 0; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 6px; padding: 10px 12px 18px; position: relative; border: 1px solid var(--line); border-radius: 10px; background: var(--raised); }
.branch code { background: none; border: none; padding: 0; color: var(--string); }
.branch span { color: var(--warm); font-weight: 650; font-size: 15px; }
.branch::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 9px; height: 4px; border-radius: 2px; background: var(--warm-bar); }

.walk { display: block; width: 100%; max-width: 380px; margin: 0 auto; height: auto; }
.walk .edges line { stroke: var(--line); stroke-width: 2; }
.walk .edges line.into { stroke: var(--accent); stroke-width: 2.4; }
.walk rect { fill: var(--raised); stroke: var(--line); stroke-width: 1.2; }
.walk .merged rect { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.walk text { text-anchor: middle; }
.walk .value { font: 600 15px var(--mono); fill: var(--text); }
.walk .weight { font: 650 12.5px var(--sans); fill: var(--warm); }

.bars { display: flex; flex-direction: column; gap: 8px; }
.bars div { position: relative; height: 32px; border-radius: 8px; background: var(--sunken); overflow: hidden; }
.bars div::before { content: ""; position: absolute; inset: 0 auto 0 0; width: var(--w); background: var(--warm-bar); opacity: 0.85; }
.bars span { position: relative; padding-left: 12px; line-height: 32px; font: 14px var(--mono); color: var(--text); }

/* Games: the figures beside the program. */
.figures { margin: 34px 0 0; display: grid; gap: 22px; }
.figures div { padding-left: 18px; border-left: 3px solid var(--warm-bar); }
.figures dt { font-weight: 650; margin-bottom: 2px; }
.figures dd { margin: 0; color: var(--muted); font-size: 16px; }
.figures b { color: var(--text); font-variant-numeric: tabular-nums; }

/* Forecasts: the fan chart. */
.chart { margin: 44px 0 0; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); background: var(--raised); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.chart .picture { padding: 22px 24px 20px; min-width: 0; }
.chart figcaption { font-size: 15px; font-weight: 600; margin-bottom: 12px; max-width: 34em; }
.chart .beside { display: flex; flex-direction: column; justify-content: space-between; min-width: 0; border-left: 1px solid var(--line); background: var(--sunken); }
.uses { margin: 0; padding: 24px 24px 8px 44px; color: var(--muted); font-size: 15.5px; }
.uses li { margin-bottom: 14px; }
.uses li::marker { color: var(--warm-bar); }
.chart pre.output { border-top: 1px solid var(--line); background: var(--raised); padding: 14px 20px 16px; }
.fan { display: block; width: 100%; height: auto; }
.fan .grid { stroke: var(--line); stroke-width: 1; }
.fan .tick { font: 12.5px var(--mono); fill: var(--faint); }
.fan .p90 { fill: var(--accent); opacity: 0.13; }
.fan .p50 { fill: var(--accent); opacity: 0.26; }
.fan .median { fill: none; stroke: var(--accent); stroke-width: 2.6; stroke-linejoin: round; }
.fan .goal { stroke: var(--warm); stroke-width: 1.6; stroke-dasharray: 6 4; }
.fan .goal-label { font: 650 13px var(--sans); fill: var(--warm); }
.legend { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; margin: 8px 0 0; font-size: 13.5px; color: var(--muted); }
.key { display: inline-block; width: 16px; height: 10px; border-radius: 2px; margin-right: -10px; vertical-align: -1px; }
.key.p90 { background: color-mix(in srgb, var(--accent) 16%, var(--raised)); }
.key.p50 { background: color-mix(in srgb, var(--accent) 38%, var(--raised)); }
.key.median { height: 3px; vertical-align: 3px; background: var(--accent); }

/* Trust: cards. */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 44px; }
.card { min-width: 0; padding: 24px 24px 22px; background: var(--raised); border: 1px solid var(--line); border-radius: 14px; }
.card p { color: var(--muted); font-size: 16px; margin: 0; }
.card > pre.output { margin-top: 16px; border-radius: 8px; font-size: 12.5px; }
.card.wide { grid-column: 1 / -1; }
.card.wide p { max-width: 46em; }
.card.wide .program { margin-top: 20px; box-shadow: none; }

/* Getting started. */
.panel { height: 100%; padding: 28px; background: var(--raised); border: 1px solid var(--line); border-radius: 14px; }
.panel p { color: var(--muted); font-size: 16px; margin: 0 0 20px; }
pre.shell { padding: 14px 16px; border-radius: 10px; background: var(--sunken); border: 1px solid var(--line); overflow-x: auto; white-space: pre; }
.prompt { color: var(--faint); user-select: none; }

/* Examples. */
.examples { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.examples a {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--raised);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.12s ease, transform 0.12s ease, box-shadow 0.12s ease;
}
.examples a:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.examples .number { font: 600 12.5px var(--mono); color: var(--faint); }
.examples .domain { float: right; margin-top: -19px; align-self: flex-end; font-size: 12px; font-weight: 600; color: var(--warm); }
.examples strong { margin: 6px 0 4px; font-size: 16.5px; line-height: 1.3; letter-spacing: -0.01em; }
.examples .what { color: var(--muted); font-size: 14.5px; line-height: 1.5; }
.examples code { font-size: 0.86em; white-space: normal; }

.narrow .wrap { max-width: 820px; }
.narrow p { color: var(--muted); }

/* ── The bar at the bottom ── */
.bottom { border-top: 1px solid var(--line); padding: 28px 0 36px; color: var(--faint); font-size: 14.5px; }
.bottom .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.bottom nav { display: flex; gap: 20px; }
.bottom a { color: var(--muted); text-decoration: none; }
.bottom a:hover { color: var(--text); text-decoration: underline; }

/* ── The guide ── */
.guide {
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr);
  grid-template-areas: "toc title" "toc note" "toc body";
  column-gap: 56px;
  padding-top: 40px;
  padding-bottom: 96px;
}
.guide > .note { grid-area: note; max-width: 780px; margin: 0 0 24px; }
.guide > h1 { grid-area: title; max-width: 780px; font-size: clamp(36px, 4.6vw, 52px); letter-spacing: -0.035em; line-height: 1.05; margin: 0 0 24px; }
.toc { grid-area: toc; position: sticky; top: 84px; align-self: start; max-height: calc(100vh - 104px); overflow-y: auto; font-size: 14px; }
.toc p { margin: 0 0 8px; font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0; }
.toc a { display: block; padding: 4px 10px; border-radius: 6px; color: var(--muted); text-decoration: none; line-height: 1.4; }
.toc a:hover { color: var(--text); background: var(--accent-soft); }
.toc a[aria-current] { color: var(--accent); background: var(--accent-soft); font-weight: 600; }
.toc code { font-size: 0.92em; background: none; border: none; padding: 0; }

.prose { overflow-wrap: anywhere; grid-area: body; min-width: 0; max-width: 780px; font-size: 16.5px; line-height: 1.68; }
.prose h2 { font-size: 28px; letter-spacing: -0.022em; line-height: 1.2; margin: 64px 0 14px; padding-top: 28px; border-top: 1px solid var(--line); }
.prose h3 { font-size: 19.5px; margin: 38px 0 8px; }
.prose h2, .prose h3 { position: relative; }
.prose .anchor { position: absolute; left: -0.9em; width: 0.9em; color: var(--faint); text-decoration: none; opacity: 0; font-weight: 400; }
.prose h2:hover .anchor, .prose h3:hover .anchor, .prose .anchor:focus { opacity: 1; }
.prose blockquote { margin: 0 0 28px; padding: 14px 18px; border-radius: 10px; background: var(--sunken); color: var(--muted); font-size: 15px; }
.prose blockquote p { margin: 0; }
.prose hr { display: none; }
.prose li { margin: 4px 0; }
.prose li > p { margin: 6px 0; }
.prose code { white-space: normal; }
.prose .snippet { position: relative; margin: 18px 0 22px; background: var(--raised); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.prose .snippet pre.code { font-size: 13.5px; }
.prose .snippet .open { display: block; padding: 7px 16px; border-top: 1px solid var(--line); background: var(--sunken); text-align: right; }
.prose pre.plain { margin: 14px 0 20px; padding: 13px 18px; border-radius: 12px; background: var(--sunken); border: 1px solid var(--line); overflow-x: auto; white-space: pre; }
.prose pre.plain code { font-size: 13px; background: none; border: none; padding: 0; white-space: pre; }
.prose .table { margin: 18px 0 24px; overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--raised); }
.prose table { border-collapse: collapse; width: 100%; font-size: 14.5px; line-height: 1.5; overflow-wrap: normal; }
.prose th, .prose td { padding: 12px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.prose th:first-child, .prose td:first-child { min-width: 9rem; }
.prose th { background: var(--sunken); font-weight: 650; }
.prose tr:last-child td { border-bottom: none; }
.prose td code, .prose th code { white-space: nowrap; }

/* ── Not found ── */
.missing { padding-top: 120px; padding-bottom: 160px; }
.missing h1 { font-size: clamp(40px, 6vw, 64px); letter-spacing: -0.04em; margin: 0 0 12px; }
.missing p { color: var(--muted); font-size: 19px; }

/* ── Narrower screens ── */
@media (max-width: 1040px) {
  .hero-grid, .two, .two.evidence, .steps li, .chart { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .steps li { gap: 24px; }
  .chart { gap: 0; }
  .chart .beside { border-left: none; border-top: 1px solid var(--line); }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .examples { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .two > .program { order: 2; }
}

@media (max-width: 860px) {
  .program.split { grid-template-columns: minmax(0, 1fr); }
  .program.split pre.code + pre.output { border-left: none; border-top: 1px solid var(--line); }
  .guide { grid-template-columns: minmax(0, 1fr); grid-template-areas: "title" "note" "toc" "body"; padding-top: 32px; }
  .toc { position: static; max-height: none; margin-bottom: 28px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--raised); }
  .toc ul { columns: 2 14em; column-gap: 20px; }
  .toc li { break-inside: avoid; }
  .prose .anchor { display: none; }
}

@media (max-width: 600px) {
  body { font-size: 16.5px; }
  .wrap { padding: 0 16px; }
  .top .wrap { gap: 8px; height: auto; min-height: 60px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
  .top nav { gap: 2px; margin-left: auto; }
  .github-link span { display: none; }
  .install pre.shell { font-size: 13px; }
  .top nav a:not(.button) { padding: 6px 5px; font-size: 14px; }
  .top .button.small { padding: 6px 10px; margin-left: 2px; }
  .hero { padding: 52px 0 64px; }
  .section { padding: 72px 0; }
  .actions .button { flex: 1 1 auto; justify-content: center; }
  .examples { grid-template-columns: minmax(0, 1fr); }
  pre { font-size: 12.5px; }
  pre.code .line { padding: 0 14px 0 calc(40px + var(--hang)); }
  pre.code .line::before { width: 26px; }
  pre.output { padding: 12px 14px; }
  .program figcaption { padding: 9px 14px; }
  .panel, .card { padding: 20px; }
  .chart .picture { padding: 18px 14px 16px; }
  .uses { padding: 20px 16px 4px 34px; }
  .fan .tick { font-size: 15px; }
  .fan .goal-label { font-size: 16px; }
}

@media (prefers-color-scheme: dark) {
  .fan .p90 { opacity: 0.2; }
  .fan .p50 { opacity: 0.36; }
}

@media (prefers-reduced-motion: reduce) {
  .button, .examples a { transition: none; }
  .button:hover, .examples a:hover { transform: none; }
}