/* World Arcade public site. Branding mirrors the app: Ivory (white) and Noir (black), Inter; black and white only. */
@font-face{font-family:"Inter";font-weight:500;font-display:swap;src:url(fonts/inter-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:600;font-display:swap;src:url(fonts/inter-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Inter";font-weight:700;font-display:swap;src:url(fonts/inter-latin-700-normal.woff2) format("woff2")}

:root{
  --bg:#fff;--surface:#f5f5f3;--ink:#0a0a0a;--on-ink:#fff;--muted:#6b6b67;--line:rgba(10,10,10,.12);
  --nav-glass:rgba(255,255,255,.72);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"SF Pro Text",system-ui,sans-serif;
  --ease:cubic-bezier(.2,.8,.2,1);
  color-scheme:light;
}
@media(prefers-color-scheme:dark){
  :root{--bg:#0a0a0a;--surface:#151515;--ink:#f6f5f1;--on-ink:#0a0a0a;--muted:#a3a39e;--line:rgba(255,255,255,.14);--nav-glass:rgba(10,10,10,.72);color-scheme:dark}
}
/* Fixed brand themes, used by the preview cards and anywhere a section must stay one colour. */
.noir{--bg:#0a0a0a;--surface:#151515;--ink:#f6f5f1;--on-ink:#0a0a0a;--muted:#a3a39e;--line:rgba(255,255,255,.14)}
.ivory{--bg:#fff;--surface:#f5f5f3;--ink:#0a0a0a;--on-ink:#fff;--muted:#6b6b67;--line:rgba(10,10,10,.12)}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font:500 16px/1.6 var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;padding-top:var(--nav-top,68px)}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}

/* ---------- iOS-style navigation bar: transparent at the top, frosted and compact once scrolled ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;height:68px;display:flex;align-items:center;
  background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;
  transition:height .35s var(--ease),background-color .3s,-webkit-backdrop-filter .3s,backdrop-filter .3s}
.nav::after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:var(--line);opacity:0;transition:opacity .3s}
.nav-in{width:100%;max-width:1040px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:21px;letter-spacing:-.025em;transform-origin:left center;transition:font-size .35s var(--ease),gap .35s var(--ease)}
.brand svg{width:34px;height:34px;transition:width .35s var(--ease),height .35s var(--ease)}
.links{display:flex;gap:4px}
.links a{font-size:15px;color:var(--muted);text-decoration:none;padding:6px 12px;border-radius:999px;transition:color .15s,background .15s,font-size .35s var(--ease)}
.links a:hover,.links a[aria-current]{color:var(--ink);background:var(--surface)}
.nav.is-scrolled{height:48px;background:var(--nav-glass);-webkit-backdrop-filter:saturate(180%) blur(22px);backdrop-filter:saturate(180%) blur(22px)}
.nav.is-scrolled::after{opacity:1}
.nav.is-scrolled .brand{font-size:16px;gap:8px}
.nav.is-scrolled .brand svg{width:24px;height:24px}
.nav.is-scrolled .links a{font-size:14px}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.nav.is-scrolled{background:var(--bg)}}

/* ---------- hero ---------- */
.hero{padding:56px 0 72px;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
h1{font-size:clamp(42px,8vw,84px);line-height:1;letter-spacing:-.04em;margin:0 auto 22px;font-weight:700;max-width:12em}
.lede{font-size:clamp(17px,2.2vw,21px);color:var(--muted);max-width:32em;margin:0 auto 26px}
.facts{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:center;margin:0;padding:0;list-style:none;font-size:14.5px;color:var(--muted)}
.facts li+li::before{content:"";display:inline-block;width:3px;height:3px;border-radius:50%;background:var(--muted);vertical-align:middle;margin-right:22px}

/* ---------- Noir / Ivory preview ---------- */
.themes{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:760px;margin:0 auto}
.theme{background:var(--bg);color:var(--ink);border:1px solid var(--line);border-radius:28px;padding:22px 22px 18px}
.noir.theme{border-color:transparent}
.board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.tile{aspect-ratio:1;border-radius:18px;background:var(--surface);display:grid;place-items:center;transition:transform .25s var(--ease)}
.tile:hover{transform:translateY(-3px)}
.tile svg{width:44%;height:44%;display:block}
.tile{color:var(--ink)}
.tile.solid{background:var(--ink);color:var(--on-ink)}
.theme p{margin:16px 2px 0;font-size:14px;font-weight:600;display:flex;justify-content:space-between}
.theme p span{color:var(--muted);font-weight:500}

/* ---------- sections ---------- */
section{padding:96px 0 0}
h2{font-size:clamp(28px,4.2vw,40px);letter-spacing:-.03em;line-height:1.1;margin:0 0 12px}
.sec-sub{color:var(--muted);max-width:34em;margin:0 0 40px}
.cats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.cat{padding:26px 24px 8px 0}
.cat+.cat{padding-left:24px;border-left:1px solid var(--line)}
.cat svg{width:26px;height:26px;stroke:var(--ink);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px}
.cat h3{margin:0 0 6px;font-size:17px;letter-spacing:-.015em}
.cat p{margin:0;font-size:15px;color:var(--muted)}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feat h3{margin:0 0 6px;font-size:17px;letter-spacing:-.015em}
.feat p{margin:0;color:var(--muted);font-size:15.5px}
.feat a{text-decoration-color:var(--line);text-underline-offset:3px}
.help{text-align:center;padding:96px 0 0}
.help h2{margin-bottom:8px}.help p{color:var(--muted);margin:0 0 22px}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:15px;padding:12px 24px;border-radius:999px;background:var(--ink);color:var(--on-ink);transition:opacity .15s}
.btn:hover{opacity:.82}

footer{margin-top:96px;padding:28px 0 44px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13.5px;color:var(--muted)}
footer div{display:flex;gap:20px}
footer a{text-decoration:none}footer a:hover{color:var(--ink)}

/* ---------- legal pages ---------- */
.doc{max-width:680px;margin:0 auto;padding:40px 20px 0}
.doc h1{font-size:clamp(32px,5vw,44px);text-align:left;letter-spacing:-.035em;margin:0 0 8px;max-width:none}
.doc h3{margin:32px 0 6px;font-size:17px;letter-spacing:-.015em}
.doc p{margin:0;color:var(--muted)}
.doc .sub{margin-bottom:24px}
.doc a{text-underline-offset:3px}
.doc+footer,.doc-foot{max-width:680px}

@media(max-width:860px){
  .cats{grid-template-columns:repeat(2,1fr)}
  .cat:nth-child(3){padding-left:0;border-left:0}
  .cat:nth-child(n+3){border-top:1px solid var(--line);margin-top:24px}
  .feats{grid-template-columns:1fr;gap:24px}
}
@media(max-width:560px){
  .hero{padding:36px 0 56px}
  .themes{gap:10px}.theme{padding:14px 14px 12px;border-radius:22px}.board{gap:7px}.tile{border-radius:13px}
  .cats{grid-template-columns:1fr}
  .cat,.cat+.cat{padding:22px 0 4px;border-left:0}
  .cat:nth-child(n+2){border-top:1px solid var(--line);margin-top:20px}
  .links a:not([data-keep]){display:none}
  section,.help{padding-top:72px}footer{margin-top:72px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}html{scroll-behavior:auto}}

/* ---------- floating pill nav ---------- */
body{padding-top:var(--nav-top,92px)}
.nav,.nav.is-scrolled{inset:14px 0 auto 0;height:auto;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;pointer-events:none;padding:0 12px}
.nav::after,.nav.is-scrolled::after{display:none}
.nav-in{pointer-events:auto;max-width:960px;height:56px;padding:0 8px 0 14px;gap:12px;border-radius:999px;background:var(--nav-glass);border:1px solid var(--line);
  -webkit-backdrop-filter:saturate(180%) blur(22px);backdrop-filter:saturate(180%) blur(22px);box-shadow:0 8px 30px rgba(0,0,0,.08);transition:height .3s var(--ease),box-shadow .3s}
.nav.is-scrolled .nav-in{height:48px;box-shadow:0 10px 36px rgba(0,0,0,.14)}
.brand svg,.nav.is-scrolled .brand svg{width:30px;height:30px}
.nav.is-scrolled .brand svg{width:28px;height:28px}
.nav .links{margin-left:auto}
.nav.is-scrolled .links a{font-size:15px}
.nav-cta{flex:none;text-decoration:none;font-weight:600;font-size:14.5px;padding:9px 18px;border-radius:999px;background:var(--ink);color:var(--on-ink);transition:opacity .15s}
.nav-cta:hover{opacity:.82}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.nav-in{background:var(--bg)}}

/* ---------- CTA and world sections ---------- */
.cta-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center;margin:0 0 28px}
.btn-lg{font-size:16.5px;padding:15px 30px}
.btn-ghost{text-decoration:none;font-weight:600;font-size:16.5px;padding:15px 22px;border-radius:999px;color:var(--ink);transition:background .15s}
.btn-ghost:hover{background:var(--surface)}
.sec-sub.wide{max-width:none}
.regions{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.region{padding:24px 24px 22px 0;border-bottom:1px solid var(--line)}
.region:not(:nth-child(3n+1)){padding-left:24px;border-left:1px solid var(--line)}
.region h3{margin:0 0 6px;font-size:17px;letter-spacing:-.015em}
.region p{margin:0;font-size:15px;color:var(--muted)}
.get{text-align:center}
.get .sec-sub{margin:0 auto 28px}
@media(max-width:860px){
  .regions{grid-template-columns:repeat(2,1fr)}
  .region,.region:not(:nth-child(3n+1)){padding:22px 20px 20px 0;border-left:0}
  .region:nth-child(even){padding-left:20px;border-left:1px solid var(--line)}
}
@media(max-width:560px){
  .regions{grid-template-columns:1fr}
  .region,.region:nth-child(even){padding:20px 0;border-left:0}
  .links a{padding:6px 8px;font-size:14px}
  .nav-cta{padding:8px 14px;font-size:14px}
  .sec-sub.wide{max-width:34em}
}