:root {
  color-scheme: dark;
  --bg: #11141C;
  --deep: #0A0D13;
  --surface: #1B202B;
  --accent: #FFDE59;
  --secondary: #FFFFFF;
  --text: #FFFFFF;
  --muted: #BEC5D2;
  --line: #353C4B;
  --paper: #F6F2E5;
  --ink: #11141C;
  --max: 1180px;
  --display: 'Big Shoulders Display', 'Arial Narrow', Impact, sans-serif;
  --body: 'Atkinson Hyperlegible', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.65 var(--body); overflow-wrap: break-word; }
a, button { -webkit-tap-highlight-color: transparent; }
a, button, summary { touch-action: manipulation; }
a { color: var(--accent); text-underline-offset: 4px; }
a:hover { color: var(--secondary); }
button { font: inherit; cursor: pointer; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.skip { position: fixed; top: -120px; left: 16px; z-index: 100; background: var(--accent); color: var(--ink); padding: 12px 20px; font-weight: 700; }
.skip:focus { top: 12px; }
.topbar { position: sticky; top: 0; z-index: 30; background: var(--deep); border-bottom: 1px solid var(--line); }
.topbar-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; text-decoration: none; }
.brand img { width: 162px; height: auto; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 24px; }
.nav a { padding: 12px 0; color: var(--text); font-size: 15px; text-decoration: none; }
.nav a:hover { color: var(--accent); }
.menu-toggle { display: none; align-items: center; justify-content: center; flex: 0 0 44px; width: 44px; height: 44px; min-height: 44px; padding: 10px; color: var(--text); background: transparent; border: 1px solid var(--line); border-radius: 6px; }
.menu-icon { position: relative; display: block; width: 22px; height: 18px; }
.menu-icon i { position: absolute; left: 0; display: block; width: 100%; height: 2px; background: currentColor; transition: transform .18s ease, opacity .18s ease; }
.menu-icon i:nth-child(1) { top: 0; }
.menu-icon i:nth-child(2) { top: 8px; }
.menu-icon i:nth-child(3) { top: 16px; }
.topbar.is-open .menu-icon i:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.topbar.is-open .menu-icon i:nth-child(2) { opacity: 0; }
.topbar.is-open .menu-icon i:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
.hero-band { background: var(--deep); border-bottom: 1px solid var(--line); }
.hero { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr); gap: 52px; align-items: center; padding: 64px 0 68px; }
.eyebrow { margin: 0 0 20px; color: var(--accent); font-size: 12px; font-weight: 700; line-height: 1.5; letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { margin: 0 0 24px; font: 900 clamp(50px, 6.1vw, 82px)/1.02 var(--display); letter-spacing: -.016em; text-wrap: balance; }
.hero h1 span { color: var(--accent); }
.lead { margin: 0 0 26px; color: #E3E6ED; font-size: 20px; line-height: 1.55; max-width: 50ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 13px 22px; border: 2px solid transparent; border-radius: 6px; font: 700 16px/1.35 var(--body); text-align: center; text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: #FFE77F; color: var(--ink); }
.btn-outline { background: transparent; color: var(--text); border-color: #818B9D; }
.btn-outline:hover { color: var(--text); border-color: var(--secondary); }
.disclosure { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; max-width: 65ch; }
.hero-media { position: relative; margin: 0; padding: 12px 0 0 12px; }
.hero-media::before { position: absolute; top: 0; left: 0; width: 72px; height: 72px; border-top: 4px solid var(--accent); border-left: 4px solid var(--accent); content: ''; }
.hero-media img { width: 100%; aspect-ratio: 24/19; border-radius: 8px; }
.hero-media figcaption { color: var(--muted); margin: 12px 0 0; font-size: 12px; line-height: 1.5; }
.reading-strip { border-top: 1px solid var(--line); }
.reading-strip .wrap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.reading-strip a { display: flex; gap: 14px; align-items: center; padding: 20px 24px; color: var(--text); border-left: 1px solid var(--line); text-decoration: none; font-size: 14px; }
.reading-strip a:first-child { padding-left: 0; border-left: 0; }
.reading-strip a:hover { color: var(--accent); }
.reading-strip b { color: var(--accent); font: 800 25px/1 var(--display); }
.content-section { padding: 76px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 92px; }
.content-section:nth-of-type(even) { background: #151A24; }
.section-grid { display: grid; grid-template-columns: minmax(210px, 320px) minmax(0, 1fr); gap: 60px; align-items: start; }
.section-heading { position: sticky; top: 110px; }
.section-number { display: inline-block; min-width: 40px; padding: 8px; margin-bottom: 18px; background: var(--accent); color: var(--ink); font: 800 14px/1 var(--body); text-align: center; }
.section-heading h2 { margin: 0; font: 900 clamp(36px, 4vw, 52px)/1.06 var(--display); letter-spacing: -.01em; text-wrap: balance; }
.section-heading p { margin: 18px 0 0; font-size: 15px; color: var(--muted); line-height: 1.6; }
.section-body { min-width: 0; }
.section-body > :first-child { margin-top: 0; }
.section-body p { margin: 0 0 22px; }
.section-body p:last-child { margin-bottom: 0; }
.section-body h3 { margin: 28px 0 12px; font: 800 29px/1.12 var(--display); }
.section-body ul, .section-body ol { padding-left: 24px; margin: 0 0 24px; }
.section-body li { margin-bottom: 12px; }
.section-body li::marker { color: var(--accent); font-weight: 700; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; padding: 6px 24px; margin: 26px 0; border: 1px solid var(--line); border-top: 3px solid var(--accent); background: var(--surface); border-radius: 0 0 8px 8px; }
.facts > div { padding: 16px 0; }
.facts dt { font-size: 13px; color: var(--muted); }
.facts dd { margin: 5px 0 0; font-size: 18px; font-weight: 700; }
.game-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 0 !important; margin: 24px 0 !important; list-style: none; }
.game-grid li { margin: 0; padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.game-grid .card-number { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.game-grid h3 { margin: 12px 0; }
.game-grid p { font-size: 16px; }
.steps { list-style: none; padding: 0 !important; counter-reset: steps; }
.steps > li { position: relative; padding: 0 0 24px 72px; margin: 24px 0; border-bottom: 1px solid var(--line); counter-increment: steps; }
.steps > li:last-child { padding-bottom: 0; border-bottom: 0; }
.steps > li::before { content: counter(steps, decimal-leading-zero); position: absolute; top: 0; left: 0; display: grid; place-items: center; width: 50px; height: 50px; background: var(--accent); color: var(--ink); border-radius: 4px; font: 900 29px/1 var(--display); }
.steps h3 { margin-top: 0; }
.section-image { margin: 0 0 28px; }
.section-image img { width: 100%; aspect-ratio: 3/2; border: 1px solid var(--line); border-radius: 8px; }
.section-image figcaption { margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.note { margin: 24px 0; padding: 20px 22px; border-left: 4px solid var(--accent); background: var(--surface); border-radius: 0 8px 8px 0; }
.note p:last-child { margin-bottom: 0; }
.checklist { list-style: none; padding-left: 0 !important; }
.checklist li { position: relative; padding: 16px 0 16px 30px; margin: 0; border-bottom: 1px solid var(--line); }
.checklist li::before { position: absolute; top: 27px; left: 0; width: 9px; height: 9px; background: var(--accent); content: ''; }
.checklist strong { color: var(--text); }
.section-body details { padding: 0; border-top: 1px solid var(--line); }
.section-body details:last-child { border-bottom: 1px solid var(--line); }
summary { position: relative; list-style: none; cursor: pointer; padding: 23px 40px 23px 0; font-size: 18px; line-height: 1.45; font-weight: 700; }
summary::-webkit-details-marker { display: none; }
summary::after { position: absolute; top: 22px; right: 3px; color: var(--accent); content: '+'; font-size: 26px; line-height: 1; }
details[open] > summary::after { content: '−'; }
.section-body details p { padding-bottom: 24px; color: var(--muted); }
.partner-band { padding: 42px 0; background: var(--paper); color: var(--ink); }
.partner-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.partner-inner h2 { margin: 0 0 12px; font: 900 38px/1.12 var(--display); }
.partner-inner p { margin: 0; max-width: 62ch; }
.partner-inner .btn { flex: 0 0 auto; border-color: var(--ink); }
.partner-band .disclosure { color: #464B56; margin-top: 10px; }
.partner-band .btn:focus-visible { outline-color: var(--ink); }
.footer { padding: 44px 0 28px; background: var(--deep); color: var(--muted); font-size: 14px; }
.footer-head { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--line); }
.footer-logo { width: 162px; }
.age { display: grid; place-items: center; width: 50px; height: 50px; flex: 0 0 auto; border: 2px solid var(--accent); border-radius: 6px; color: var(--accent); font: 900 22px/1 var(--display); }
.footer p { max-width: 92ch; }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 28px; font-size: 13px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 34px; padding: 48px 0 50px; }
  .hero h1 { max-width: 19ch; }
  .hero-media { max-width: 680px; width: 100%; }
  .section-grid { grid-template-columns: 1fr; gap: 30px; }
  .section-heading { position: static; }
  .section-heading h2 { max-width: 24ch; }
  .section-heading p { max-width: 64ch; }
  .content-section { padding: 56px 0; }
  .topbar-inner { gap: 18px; }
  .nav { gap: 4px 18px; }
  .nav a { font-size: 14px; }
  .partner-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
}
@media (max-width: 760px) {
  html:not(.js) .topbar { position: static; }
  .topbar-inner { min-height: 68px; flex-wrap: wrap; gap: 0; }
  .topbar .brand { min-height: 44px; }
  .brand img { width: 142px; }
  .nav { display: flex; width: 100%; padding: 8px 0 16px; gap: 0; flex-flow: column nowrap; align-items: stretch; }
  .nav a { display: flex; align-items: center; flex: 0 0 auto; min-height: 48px; padding: 11px 8px; border-top: 1px solid var(--line); font-size: 16px; }
  .js .topbar-inner { height: 68px; flex-wrap: nowrap; }
  .js .menu-toggle { display: inline-flex; }
  .js .topbar .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; width: 100%; margin: 0; padding: 8px 24px 16px; background: var(--deep); border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px #0006; max-height: calc(100vh - 69px); max-height: calc(100svh - 69px); overflow-y: auto; overscroll-behavior-y: contain; scroll-padding: 8px; }
  .js .topbar.is-open .nav { display: flex; }
  .topbar-inner > .menu-toggle { margin-left: auto; }
  .hero { padding-top: 34px; }
  .hero h1 { font-size: clamp(44px, 10.5vw, 72px); }
  .lead { font-size: 18px; }
  .reading-strip a { padding: 18px 14px; gap: 9px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { width: calc(100% - 32px); }
  .js .topbar .nav { padding-inline: 16px; }
  .hero { gap: 26px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .hero-media { padding: 8px 0 0 8px; }
  .hero-media::before { width: 52px; height: 52px; }
  .reading-strip .wrap { grid-template-columns: 1fr; }
  .reading-strip a, .reading-strip a:first-child { padding: 14px 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .reading-strip a:last-child { border-bottom: 0; }
  .reading-strip b { min-width: 28px; }
  .content-section { padding: 44px 0; }
  .section-grid { gap: 26px; }
  .section-heading h2 { font-size: 38px; }
  .section-number { margin-bottom: 14px; }
  .facts { grid-template-columns: 1fr; padding: 4px 20px; }
  .facts > div + div { border-top: 1px solid var(--line); }
  .game-grid { grid-template-columns: 1fr; }
  .steps > li { padding-left: 64px; }
  .steps > li::before { width: 46px; height: 46px; font-size: 27px; }
  .note { padding: 18px; }
  .partner-band { padding: 34px 0; }
  .partner-inner { align-items: stretch; }
  .partner-inner h2 { font-size: 34px; }
  .footer { padding-top: 34px; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}