/* MergeMate site · Arcane palette (Assets/Scripts/Game/Palette.cs). EMBER only on the primary CTA. */
:root{--void:#090713;--surface:#151126;--raised:#211a38;--moon:#eceaf6;--muted:#a49fb8;--sub:#c7c2d5;
  --teal:#43d9c2;--teal-hi:#8ffff0;--violet:#a55cff;--ember:#ffaa33;--ember-hi:#ffe09b;--line:rgba(67,217,194,.2)}
*{box-sizing:border-box}
html{background:var(--void);scroll-behavior:smooth}
body{margin:0;color:var(--moon);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  background:radial-gradient(circle at 50% 0,rgba(67,217,194,.14),transparent 34rem),
    radial-gradient(circle at 90% 40%,rgba(165,92,255,.12),transparent 30rem),
    linear-gradient(170deg,#090713 0%,#100b1e 55%,#080610 100%);min-height:100vh}
a{color:var(--teal)}a:hover{color:var(--teal-hi)}
img{max-width:100%;height:auto;display:block}
.wrap{width:min(100% - 40px,1080px);margin:0 auto}
header.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--moon);text-decoration:none;font-weight:800;letter-spacing:.06em}
.brand img{width:40px;height:40px;border-radius:10px;box-shadow:0 0 16px rgba(67,217,194,.35)}
nav.links{display:flex;gap:18px;flex-wrap:wrap;font-size:.95rem}
nav.links a{color:var(--sub);text-decoration:none}nav.links a:hover{color:var(--teal-hi)}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:36px 0 26px}
.eyebrow{color:var(--teal);font-size:.8rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;margin:0 0 14px}
h1{font-family:ui-serif,Georgia,"Songti SC",serif;font-size:clamp(2.6rem,6vw,4.4rem);line-height:1.02;margin:0;letter-spacing:.02em;
  text-shadow:0 0 14px rgba(67,217,194,.5)}
h1 small{display:block;font-family:inherit;font-size:.42em;color:var(--teal-hi);letter-spacing:.06em;margin-top:14px;text-shadow:none}
.lead{font-size:1.12rem;color:var(--sub);margin:22px 0 26px;max-width:600px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:54px;padding:0 22px;border-radius:14px;font-weight:800;text-decoration:none;border:1px solid transparent}
.btn-primary{color:#241300;background:linear-gradient(180deg,var(--ember-hi),var(--ember));box-shadow:0 8px 28px rgba(255,170,51,.22)}
.btn-primary:hover{color:#241300;filter:brightness(1.05)}
.btn-ghost{color:var(--moon);background:rgba(33,26,56,.7);border-color:rgba(67,217,194,.45)}
.btn-soon{color:var(--muted);background:rgba(33,26,56,.45);border-color:rgba(164,159,184,.3);cursor:default}
.hero-art{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 0 50px rgba(67,217,194,.15),0 30px 60px rgba(0,0,0,.45)}
section{padding:46px 0;border-top:1px solid rgba(67,217,194,.12)}
h2{font-size:clamp(1.5rem,3vw,2rem);margin:0 0 18px;color:var(--moon)}
h3{font-size:1.12rem;margin:0 0 8px;color:var(--teal-hi)}
p{margin:0 0 14px}
.definition{font-size:1.12rem;color:var(--sub);max-width:860px}
.definition strong{color:var(--moon)}
.chain{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:2.2rem;margin:20px 0 6px;color:var(--moon)}
.chain .arrow{color:var(--ember);font-size:1.4rem}
.chain .label{font-size:.9rem;color:var(--muted);margin-left:6px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{padding:22px;border:1px solid var(--line);border-radius:16px;background:rgba(21,17,38,.78)}
.card p{color:var(--sub);margin:0}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:14px}
.steps li{counter-increment:s;position:relative;padding:18px 18px 18px 64px;border:1px solid var(--line);border-radius:14px;background:rgba(21,17,38,.7);color:var(--sub)}
.steps li:before{content:counter(s);position:absolute;left:18px;top:16px;width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  font-weight:800;color:var(--void);background:var(--teal)}
.steps li strong{color:var(--moon)}
.shots{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.shots figure{margin:0}.shots img{border-radius:14px;border:1px solid var(--line)}
.shots figcaption{font-size:.85rem;color:var(--muted);margin-top:8px}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 22px;margin:0}
.facts dt{color:var(--muted)}.facts dd{margin:0;color:var(--moon)}
details{border:1px solid var(--line);border-radius:12px;background:rgba(21,17,38,.7);padding:14px 18px;margin:0 0 10px}
summary{cursor:pointer;font-weight:700;color:var(--moon)}
details p{color:var(--sub);margin:10px 0 0}
table.rules{width:100%;border-collapse:collapse;margin:8px 0 18px}
table.rules th,table.rules td{text-align:left;padding:10px 12px;border-bottom:1px solid rgba(67,217,194,.15);color:var(--sub)}
table.rules th{color:var(--moon)}
footer{padding:34px 0 46px;color:var(--muted);font-size:.92rem;border-top:1px solid rgba(67,217,194,.12)}
footer nav{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:10px}
.challenge{display:none;max-width:560px;margin:40px auto;text-align:center}
body.is-challenge .page{display:none}body.is-challenge .challenge{display:block}
.code{font:800 2.6rem/1 ui-monospace,Menlo,monospace;letter-spacing:.3em;color:var(--teal-hi);margin:18px 0;padding:18px;border:1px dashed rgba(67,217,194,.5);border-radius:14px}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:var(--raised);border:1px solid var(--teal);padding:10px 16px;border-radius:10px;opacity:0;transition:opacity .2s}
.toast.show{opacity:1}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (max-width:860px){.hero{grid-template-columns:1fr;gap:28px}.shots{grid-template-columns:repeat(2,minmax(0,1fr))}nav.links{gap:12px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}