:root{--bg:#11131f;--panel:#161a2c;--line:#2a2f4a;--dim:#9aa0b8;--text:#f3efe2;--gold:#f4c542;--red:#d23b36;--blue:#7da2ff;--green:#54d98c;--teal:#50c4c5;--teal-edge:#2f9fa0;--teal-ink:#0d2b2c;--coral:#f17c76}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;align-items:center;background:var(--bg);color:var(--text);font-family:'Space Grotesk',sans-serif;text-align:center;padding:82px 18px 40px;background-image:radial-gradient(120% 90% at 50% 10%,transparent 55%,rgba(0,0,0,.55) 100%)}
a{color:inherit}
.topnav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;background:rgba(17,19,31,.86);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-brand{font-size:20px;font-weight:600;text-decoration:none;letter-spacing:-.02em;white-space:nowrap}
.nav-brand .nav-chip{display:inline-block;background:var(--teal);color:var(--teal-ink);font-weight:800;border-radius:6px;padding:.02em .22em .06em;margin-left:.12em;transform:rotate(-4deg)}
.teal{color:var(--teal)}.coral{color:var(--coral)}
.nav-left{display:flex;align-items:center;gap:12px;min-width:0}
.nav-links{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{font-size:14px;font-weight:600;text-decoration:none;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:7px 13px;white-space:nowrap;transition:border-color .14s,color .14s,transform .14s}
.nav-links a:hover,.nav-links a.active{border-color:var(--gold);color:var(--gold)}
.nav-toggle{display:none;background:var(--panel);border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:17px;line-height:1;padding:7px 12px;cursor:pointer}
@media (max-width:600px){.nav-toggle{display:inline-block}.nav-links{position:absolute;top:100%;left:12px;right:12px;margin-top:8px;flex-direction:column;align-items:stretch;gap:8px;padding:12px;background:rgba(17,19,31,.98);border:1px solid var(--line);border-radius:12px;display:none}.topnav.open .nav-links{display:flex}.nav-links a{text-align:center;padding:11px 13px}}
.eyebrow{font-family:'Press Start 2P',monospace;font-size:8px;letter-spacing:1.5px;color:var(--teal);margin-bottom:16px}
.mark{font-size:clamp(26px,5vw,44px);font-weight:700;letter-spacing:-.02em}
.mark .chip{display:inline-block;background:var(--teal);color:var(--teal-ink);font-weight:800;border-radius:10px;padding:.04em .28em .08em;margin-left:.14em;transform:rotate(-4deg);border-bottom:4px solid var(--teal-edge)}
.mark .gold{color:var(--gold)}
.tag{margin:16px auto 24px;color:var(--dim);font-size:clamp(14px,2.2vw,17px);max-width:640px;line-height:1.55}
.btn{font-family:'Press Start 2P',monospace;font-size:11px;letter-spacing:1px;cursor:pointer;color:var(--teal-ink);background:var(--teal);border:none;border-bottom:4px solid var(--teal-edge);border-radius:12px;padding:14px 22px;transition:transform .12s,filter .12s}
.btn:hover{transform:translateY(-2px);filter:brightness(1.06)} .btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn.gold{background:var(--gold);color:#231a05;border-bottom-color:#a9840f}
.btn.ghost{background:var(--panel);color:var(--text);border:1px solid var(--line);border-bottom:3px solid var(--line);font-size:10px;padding:11px 16px}
.btn.sm{font-size:9px;padding:9px 12px}
#picker{display:none;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:12px}
#picker button{display:inline-flex;align-items:center;gap:7px;background:var(--panel);border:1px solid var(--line);border-radius:10px;color:var(--text);font-weight:600;font-size:14px;padding:9px 13px;cursor:pointer}
#picker img{width:18px;height:18px;border-radius:4px}
.shell{width:min(720px,96vw);margin:0 auto}
.card{background:var(--panel);border:2px solid var(--line);border-radius:16px;padding:22px;text-align:left;margin:14px auto 0}
.card h3{font-family:'Press Start 2P',monospace;font-size:12px;color:var(--gold);margin:0 0 6px}
.card .hint{color:var(--dim);font-size:13px;margin:0 0 14px;line-height:1.5}
.card ol{margin:0 0 6px 18px;padding:0;line-height:1.7;font-size:14.5px}
.card .rules{color:var(--dim);font-size:13px;line-height:1.55;margin-top:10px}
.step{border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:10px;background:#1b2138}
.step.done{border-color:var(--green)} .step.active{border-color:var(--gold)}
.step .t{font-family:'Press Start 2P',monospace;font-size:9px;letter-spacing:1px;color:var(--dim);margin-bottom:8px}
.step.done .t{color:var(--green)} .step.active .t{color:var(--gold)}
.amt{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.amt input{font-family:'IBM Plex Mono',monospace;font-size:16px;padding:10px 12px;width:150px;background:#0d0f1a;color:var(--text);border:1px solid var(--line);border-radius:10px}
.q{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--dim);margin-top:8px;line-height:1.6}
.q b{color:var(--text)} .q .warn{color:var(--gold)}
.mono{font-family:'IBM Plex Mono',monospace}
.status{margin:14px auto 0;color:var(--dim);font-size:14px;max-width:600px;line-height:1.5} .status.err{color:var(--coral)}
.who{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--dim);margin-top:10px}
.pos{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-top:8px;background:#1b2138}
.pos .l{font-size:14px;line-height:1.5} .pos .l .mono{color:var(--teal)} .pos .r{display:flex;gap:6px}
.pill{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--dim)}
.pill.ok{background:var(--green);color:#0c2417;border-color:var(--green)} .pill.earn{background:#241d05;color:var(--gold);border-color:var(--gold)}
.code{font-family:'IBM Plex Mono',monospace;font-size:22px;letter-spacing:2px;color:var(--gold);background:#241d05;border:1px solid var(--gold);border-radius:12px;padding:14px;text-align:center;margin-top:10px}
.banner{background:#241d05;border:1px solid var(--gold);border-radius:12px;padding:12px 14px;color:#f3e6b8;font-size:14px;margin:0 auto 12px;max-width:720px}
footer{margin-top:40px;font-family:'Press Start 2P',monospace;font-size:8px;letter-spacing:1px;color:var(--dim)}