:root{color-scheme:dark;--bg:#0a111a;--panel:#111d2a;--line:#293748;--text:#f3f6fa;--muted:#aebcca;--cyan:#58e5f3;--yellow:#ffe067;font-family:"Malgun Gothic","Apple SD Gothic Neo",system-ui,sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.65}a{color:inherit}button{font:inherit}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}a,button,summary{-webkit-tap-highlight-color:rgba(88,229,243,.2)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--yellow);outline-offset:5px}button,a,summary{touch-action:manipulation}.shell{max-width:1240px;margin:auto;padding:0 48px}.skip-link{position:absolute;left:20px;top:-80px;background:var(--yellow);color:#0a111a;padding:10px 20px;z-index:10}.skip-link:focus{top:15px}.site-header{display:flex;justify-content:space-between;align-items:center;min-height:110px;border-bottom:1px solid var(--line);gap:20px}.brand{display:block;width:232px;flex-shrink:0}.header-link{font-weight:700;text-decoration:none;font-size:14px;padding:12px 0;white-space:nowrap}.header-link span{color:var(--cyan);margin-left:12px}.hero{display:grid;grid-template-columns:1.08fr 1fr;align-items:center;gap:55px;padding:68px 0 50px}.eyebrow{font-size:12px;font-weight:800;letter-spacing:1.7px;color:var(--cyan);display:flex;align-items:center;gap:10px}.pixel-mark{width:8px;height:8px;background:var(--cyan);box-shadow:4px -4px 0 #236b7b}h1{font-size:clamp(32px,3.4vw,46px);line-height:1.35;letter-spacing:-1.8px;margin:22px 0}h1>span{color:var(--cyan)}.intro{color:var(--muted);font-size:16px;line-height:1.9;word-break:keep-all}.intro strong{color:var(--text);font-weight:600}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;justify-content:center;align-items:center;gap:14px;min-height:54px;padding:12px 21px;text-decoration:none;font-size:16px;font-weight:800;transition:background .15s,transform .15s;border:1px solid transparent}.primary{background:var(--cyan);color:#08212a;box-shadow:3px 3px 0 #216d7c}.primary:hover{background:#9cf3fa;transform:translateY(-1px)}.secondary{background:transparent;border-color:#506274}.secondary:hover{background:#1b2b3b}.secondary>span{font-size:12px;color:var(--cyan)}.button-icon{font-size:24px;line-height:1}.launch-note{margin:16px 0 24px;font-size:14px;color:var(--muted);word-break:keep-all}.address-strip{display:flex;gap:12px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:18px;max-width:442px}.small-label{display:block;font-size:10px;font-weight:700;letter-spacing:1.8px;color:var(--muted)}.address-strip strong{font-family:Consolas,monospace;font-size:20px;letter-spacing:.4px}.port{color:var(--muted);font-weight:400;font-size:15px}.copy-button{background:transparent;border:1px solid var(--line);color:var(--text);padding:9px 13px;min-height:44px;font-size:14px;cursor:pointer;white-space:nowrap}.copy-button:hover{border-color:var(--cyan)}.copy-button span{margin-left:8px}.feedback{font-size:14px;color:var(--yellow);min-height:24px;margin-top:10px;max-width:470px;word-break:keep-all}.track-card{border:1px solid #3b5267;background:var(--panel);position:relative;box-shadow:8px 8px 0 #050b12;min-width:0}.track-card:before{content:"";position:absolute;top:-1px;left:-1px;width:56px;height:3px;background:var(--cyan)}.track-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:20px}.track-top .eyebrow{font-size:11px;letter-spacing:1px}.track-tag{font-size:9px;letter-spacing:1px;color:var(--muted)}.track-image{width:100%;image-rendering:pixelated;border-block:1px solid var(--line)}.track-bottom{display:flex;align-items:center;justify-content:space-between;min-height:118px;padding:18px 20px;gap:8px}.track-bottom strong{display:block;font-size:15px;margin-top:5px;word-break:keep-all}.kart-image{width:45%;max-width:172px;image-rendering:pixelated;margin-top:-12px}.modes{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);gap:28px;padding:30px 0}.modes article{display:flex;gap:16px}.mode-number{font-family:Consolas,monospace;font-size:13px;color:var(--cyan);padding-top:4px;white-space:nowrap}.modes h2{font-size:18px;font-weight:750;margin-bottom:8px}.modes p{color:var(--muted);font-size:14px;word-break:keep-all;line-height:1.8}.join-guide{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;padding:56px 0}.guide-heading h2{font-size:28px;letter-spacing:-.8px;margin:12px 0}.guide-heading>p:last-child{color:var(--muted);font-size:14px;line-height:1.9;word-break:keep-all}.steps{padding:0;margin:0;list-style:none;display:grid;gap:24px}.steps li{display:flex;gap:18px}.step-index{border:1px solid #3b5267;width:32px;height:32px;display:grid;place-items:center;color:var(--cyan);font:700 14px Consolas,monospace;flex-shrink:0}.steps h3{font-size:16px;font-weight:700}.steps p{font-size:14px;color:var(--muted);margin-top:4px;word-break:keep-all}details{margin-top:24px;border-top:1px solid var(--line);font-size:14px}summary{cursor:pointer;padding:16px 0;min-height:48px;color:var(--text)}.manual-help{padding-bottom:12px;color:var(--muted)}.manual-help p+p{margin-top:12px}.manual-help strong{color:var(--text)}dl{margin:18px 0 0;border:1px solid var(--line);padding:16px}dl>div{display:flex;gap:18px;margin:4px 0}dt{width:75px;flex-shrink:0}dd{margin:0;color:var(--text);overflow-wrap:anywhere}footer{display:flex;justify-content:space-between;gap:18px;padding:25px 0 32px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer>span:first-child{letter-spacing:.8px;font-weight:600}footer>span:first-child span{padding:0 10px;color:var(--cyan)}
@media(min-width:1500px){.hero{padding-top:85px;padding-bottom:66px}}
@media(max-width:1050px){.shell{padding:0 32px}.hero{gap:32px;grid-template-columns:1.1fr 1fr}.button{padding:11px 15px;gap:10px}.track-top{padding:16px}.track-tag{display:none}.track-bottom{padding:16px}.track-bottom strong{font-size:14px}.wide-only{display:none}.modes{gap:22px}.modes article{gap:10px}.join-guide{gap:35px}}
@media(max-width:760px){.shell{padding:0 24px}.site-header{min-height:90px}.brand{width:190px}.hero{grid-template-columns:1fr;gap:24px;padding:38px 0 36px}h1{font-size:clamp(28px,8.2vw,38px);margin:19px 0}.intro{font-size:16px}.actions{margin-top:24px}.address-strip{max-width:none}.track-card{margin-top:0}.track-image{aspect-ratio:2.5;object-fit:cover}.track-bottom{min-height:86px}.kart-image{max-width:138px}.track-tag{display:inline}.modes{grid-template-columns:1fr;gap:24px;padding:28px 0}.modes article{gap:18px}.modes h2{margin-bottom:3px}.join-guide{grid-template-columns:1fr;gap:30px;padding:36px 0}.guide-heading>p:last-child br{display:none}footer{flex-direction:column;gap:6px}.feedback{min-height:24px}.track-top{padding:14px 16px}}
@media(max-width:380px){.shell{padding:0 18px}.brand{width:160px}.header-link{font-size:12px}h1{font-size:28px}.eyebrow{font-size:10px;letter-spacing:1.1px}.actions{gap:10px}.button{font-size:14px;padding:12px 13px;gap:8px}.port{font-size:13px}.copy-button{padding:9px;font-size:12px}.track-bottom strong{font-size:13px}.track-tag{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}