:root{--black:#050505;--paper:#F4F4F0;--yellow:#E7FF00;--muted:#8B8B86;--line:#2d2d2b;--panel:#0b0b0b;--danger:#ff5a4f}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--black);color:var(--paper);font-family:"Inter Tight",Inter,Arial,sans-serif;line-height:1.5}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.13;background-image:linear-gradient(rgba(244,244,240,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(244,244,240,.08) 1px,transparent 1px);background-size:32px 32px;mask-image:linear-gradient(to bottom,black,transparent 70%)}
a{color:inherit}
.shell{position:relative;max-width:1120px;margin:auto;padding:24px 24px 80px}
header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line);padding:0 0 18px}
.brand{display:flex;align-items:center;gap:16px;min-width:0}
.brand img{width:150px;height:auto;display:block}
.brand-copy{font:600 11px/1.4 "IBM Plex Mono",Consolas,monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.boundary-pill{border:1px solid var(--yellow);padding:8px 10px;font:700 11px/1 "IBM Plex Mono",Consolas,monospace;letter-spacing:.09em;color:var(--yellow);white-space:nowrap}
.invite{display:none;margin:18px 0 0;border-left:3px solid var(--yellow);padding:12px 14px;background:#101000;font:600 13px/1.5 "IBM Plex Mono",Consolas,monospace}
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:56px;align-items:end;padding:76px 0 64px}
.eyebrow,.label{font:700 12px/1.4 "IBM Plex Mono",Consolas,monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--yellow)}
h1,h2,h3{font-family:"League Gothic","Arial Narrow",Impact,sans-serif;text-transform:uppercase;letter-spacing:.015em;margin:0}
h1{font-size:clamp(68px,11vw,142px);line-height:.84;max-width:760px}
h1 span{color:var(--yellow)}
.lead{font-size:clamp(20px,2.3vw,28px);max-width:760px;margin:28px 0 0}
.hero-proof{border-top:1px solid var(--paper);padding-top:16px}
.hero-proof strong{display:block;color:var(--yellow);font:700 12px/1.4 "IBM Plex Mono",Consolas,monospace;letter-spacing:.12em;margin-bottom:8px}
.hero-proof p{margin:0;color:var(--muted)}
.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{appearance:none;border:1px solid var(--paper);background:transparent;color:var(--paper);padding:15px 18px;font:800 13px/1 "IBM Plex Mono",Consolas,monospace;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;cursor:pointer;min-height:48px}
.btn:hover,.btn:focus-visible{border-color:var(--yellow);outline:none}
.btn-primary{background:var(--yellow);border-color:var(--yellow);color:var(--black)}
.btn-small{padding:11px 13px;min-height:40px;font-size:11px}
.section{border-top:1px solid var(--line);padding:58px 0}
.section-head{display:grid;grid-template-columns:180px 1fr;gap:24px;margin-bottom:30px}
.section h2{font-size:clamp(40px,6vw,74px);line-height:.95}
.section-copy{max-width:700px;font-size:18px;color:var(--muted);margin:12px 0 0}
.grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.card{border-top:1px solid var(--paper);padding-top:14px;min-height:180px}
.card strong{display:block;font:700 12px/1.4 "IBM Plex Mono",Consolas,monospace;color:var(--yellow);letter-spacing:.08em}
.challenge{background:var(--panel);border:1px solid var(--line);padding:28px}
.challenge-meta{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:22px}
.challenge-meta span{font:600 11px/1.4 "IBM Plex Mono",Consolas,monospace;color:var(--muted);letter-spacing:.08em}
.questions{display:grid;gap:0}
fieldset{border:0;border-top:1px solid var(--line);padding:22px 0;margin:0}
legend{font-weight:750;font-size:18px;padding:0 0 12px;max-width:790px}
.choices{display:flex;flex-wrap:wrap;gap:10px}
.choice{position:relative}
.choice input{position:absolute;opacity:0;pointer-events:none}
.choice label{display:block;border:1px solid #444;padding:10px 13px;font:700 11px/1 "IBM Plex Mono",Consolas,monospace;letter-spacing:.06em;text-transform:uppercase;cursor:pointer}
.choice input:checked+label{background:var(--yellow);border-color:var(--yellow);color:var(--black)}
.choice input:focus-visible+label{outline:2px solid var(--paper);outline-offset:3px}
.challenge-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:22px}
.form-message{font:600 12px/1.4 "IBM Plex Mono",Consolas,monospace;color:var(--danger)}
.result{display:none;margin-top:28px;border-top:3px solid var(--yellow);padding-top:24px}
.result-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.75fr);gap:24px}
.score{font:700 clamp(76px,12vw,136px)/.8 "League Gothic","Arial Narrow",Impact,sans-serif;color:var(--yellow)}
.result h3{font-size:clamp(36px,5vw,64px);line-height:.95;margin:12px 0}
.result p{max-width:650px}
.share-panel{border:1px solid var(--line);padding:20px}
.share-panel p{margin-top:0;color:var(--muted);font-size:15px}
.share-actions{display:grid;gap:10px}
.relay{margin-top:18px;padding:14px;border-left:3px solid var(--yellow);background:#101000;font-weight:700}
.boundary{border:1px solid var(--line);padding:22px;display:grid;grid-template-columns:180px 1fr;gap:24px}
.boundary ul{margin:0;padding-left:20px}
.conversion{display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:end}
.price{font:700 clamp(60px,8vw,104px)/.9 "League Gothic","Arial Narrow",Impact,sans-serif;color:var(--yellow)}
footer{border-top:1px solid var(--line);padding-top:26px;color:var(--muted);font:500 11px/1.7 "IBM Plex Mono",Consolas,monospace}
canvas{display:none}
@media(max-width:860px){
  .hero,.result-grid,.conversion{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr 1fr}
  .section-head,.boundary{grid-template-columns:1fr}
  .hero{gap:30px;padding-top:58px}
}
@media(max-width:560px){
  .shell{padding:18px 16px 56px}
  .brand img{width:118px}
  .brand-copy{display:none}
  .grid{grid-template-columns:1fr}
  .card{min-height:0}
  .challenge{padding:18px}
  .challenge-meta{align-items:flex-start;flex-direction:column}
  h1{font-size:clamp(62px,22vw,104px)}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}