:root{--paper:#f8f8f5;--surface:#fff;--ink:#1d211f;--muted:#626965;--line:#d9ddd9;--accent:#23684c;--accent-dark:#174a36;--blue:#2c65a0;--rust:#b65b37;--danger:#a33b32;--radius:14px;--shadow:0 12px 40px #141e1912}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:18px;font-weight:400;line-height:1.55}a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}button,input,textarea{font:inherit}button,.button{min-height:46px}:focus-visible{outline-offset:3px;outline:3px solid #f1a443}.skip-link{z-index:100;background:var(--ink);color:#fff;padding:8px 12px;position:fixed;top:8px;left:8px;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.site-header,.site-footer{justify-content:space-between;align-items:center;gap:24px;width:min(1180px,100% - 40px);margin:0 auto;display:flex}.site-header{border-bottom:1px solid var(--line);min-height:84px}.site-header nav{gap:28px;margin-left:auto;font-size:16px;display:flex}.site-header nav a,.wordmark{text-decoration:none}.wordmark{letter-spacing:-.03em;font-size:22px;font-weight:650}.site-footer{border-top:1px solid var(--line);min-height:110px;color:var(--muted);font-size:15px}main{min-height:calc(100vh - 194px)}.container{width:min(1180px,100% - 40px);margin:0 auto}.narrow{width:min(760px,100% - 40px);margin:0 auto}.hero{grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);align-items:center;gap:clamp(44px,7vw,96px);min-height:700px;padding:clamp(72px,10vw,150px) 0 100px;display:grid}.eyebrow{color:var(--accent);letter-spacing:.16em;text-transform:uppercase;font-size:13px;font-weight:700}h1,h2,h3{letter-spacing:-.04em;margin:0;font-weight:560;line-height:1.04}h1{max-width:820px;font-size:clamp(46px,6.6vw,88px)}h2{font-size:clamp(36px,4.7vw,62px)}h3{font-size:25px}.lead{color:#3e4541;max-width:680px;margin:30px 0;font-size:clamp(20px,2vw,27px);line-height:1.42}.actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.button{border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;padding:12px 22px;font-weight:600;text-decoration:none;transition:background .15s,transform .15s;display:inline-flex}.button:hover{background:var(--accent-dark)}.button:active{transform:translateY(1px)}.button-secondary{color:var(--ink);background:0 0;border-color:#aab1ad}.button-secondary:hover{background:#eceeea}.button-danger{color:var(--danger);background:0 0;border-color:#d8aaa6}.button-small{min-height:40px;padding:8px 16px;font-size:15px}.button:disabled{cursor:not-allowed;opacity:.5;transform:none}.micro,.format-line,.muted{color:var(--muted)}.micro{margin:18px 0 0;font-size:15px}.format-line{margin-top:36px;font-size:17px}.sample-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px;padding:26px}.sample-label{border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 10px;font-size:13px;display:inline-flex}.track{grid-template-columns:86px minmax(0,1fr) 44px;align-items:center;gap:12px;margin-top:28px;display:grid}.track-label{font-size:14px;font-weight:650}.track-points{grid-template-columns:repeat(10,1fr);gap:5px;display:grid;position:relative}.track-points:before{content:"";background:var(--line);z-index:0;height:2px;position:absolute;inset:50% 0 auto}.point{aspect-ratio:1;background:var(--surface);border:2px solid var(--line);z-index:1;border-radius:50%;justify-self:center;width:100%;max-width:18px}.track-blue .point.passed{border-color:var(--blue);background:var(--blue)}.track-rust .point.passed{border-color:var(--rust);background:var(--rust)}.track-score{font-variant-numeric:tabular-nums;text-align:right;font-size:14px}.section{border-top:1px solid var(--line);padding:clamp(86px,11vw,150px) 0}.steps{counter-reset:steps;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:70px;display:grid}.step{border-top:2px solid var(--ink);counter-increment:steps;padding-top:20px}.step:before{content:"0" counter(steps);color:var(--muted);margin-bottom:44px;font-size:14px;display:block}.step p{color:var(--muted)}.price-section{grid-template-columns:.8fr 1.2fr;align-items:start;gap:90px;display:grid}.price-copy p{max-width:660px;font-size:21px}.clarification{border-left:2px solid var(--accent);color:var(--muted);padding-left:20px}.page-head{border-bottom:1px solid var(--line);padding:76px 0 44px}.page-head p{max-width:720px;color:var(--muted)}.form-shell{background:var(--surface);border:1px solid var(--line);border-radius:18px;max-width:680px;margin:48px auto 90px;padding:clamp(24px,5vw,48px)}.form-grid{gap:20px;display:grid}.field{gap:7px;display:grid}.field label{font-size:15px;font-weight:650}.field input,.file-input{width:100%;min-height:48px;color:var(--ink);background:#fff;border:1px solid #b8bfbb;border-radius:9px;padding:10px 12px}.field-hint{color:var(--muted);font-size:13px}.optional-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.format-box{border-block:1px solid var(--line);gap:5px;padding:18px 0;font-size:15px;display:grid}.error-box,.success-box,.connection-box{border-radius:9px;padding:11px 14px;font-size:15px}.error-box{color:#7d2722;background:#f8e8e5;border:1px solid #edc3bd}.success-box{color:#215941;background:#e8f2ed;border:1px solid #bdd8ca}.connection-box{color:#6c3f14;background:#fcf2e2;border:1px solid #ecd0a1}.rules{padding:52px 0 100px}.rules section{border-bottom:1px solid var(--line);padding:28px 0}.rules h2{margin-bottom:12px;font-size:28px}.rules li{margin:8px 0}.arena{width:min(1320px,100% - 32px);margin:0 auto;padding:36px 0 80px}.arena-top{grid-template-columns:1fr auto;align-items:start;gap:24px;margin-bottom:30px;display:grid}.race-status{color:var(--muted);flex-wrap:wrap;gap:10px 24px;font-size:15px;display:flex}.timer{font-variant-numeric:tabular-nums;letter-spacing:-.05em;text-align:right;font-size:clamp(38px,6vw,68px);line-height:.9}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,3vw,30px)}.lobby-grid,.arena-grid{grid-template-columns:minmax(0,1fr) minmax(340px,.7fr);gap:20px;display:grid}.stack{gap:20px;display:grid}.panel-title{border-bottom:1px solid var(--line);justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:20px;padding-bottom:18px;display:flex}.panel-title h2{letter-spacing:-.03em;font-size:25px}.participant-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:14px;padding:16px 0;display:flex}.participant-row:last-child{border-bottom:0}.status-pill{border:1px solid var(--line);color:var(--muted);white-space:nowrap;border-radius:999px;padding:4px 9px;font-size:12px;display:inline-flex}.status-pill.ready{color:var(--accent);background:#eef7f2;border-color:#9bc6b3}.invite{grid-template-columns:1fr auto;gap:8px;margin:20px 0;display:grid}.invite input{border:1px solid var(--line);min-width:0;color:var(--muted);border-radius:8px;padding:9px}.race-tracks{border-block:1px solid var(--line);margin-bottom:20px;padding:24px 0 30px}.race-tracks .track{grid-template-columns:120px minmax(0,1fr) 64px;margin-top:16px}.brief{white-space:pre-wrap;max-height:620px;padding-right:8px;font-size:16px;line-height:1.62;overflow:auto}.submission-state{gap:12px;display:grid}.hash{overflow-wrap:anywhere;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.checks{gap:1px;margin:0;padding:0;list-style:none;display:grid}.check{border-bottom:1px solid var(--line);grid-template-columns:30px 1fr auto;align-items:start;gap:10px;padding:11px 0;font-size:15px;display:grid}.check-mark{border:1px solid var(--line);text-align:center;border-radius:50%;width:23px;height:23px;font-size:12px;line-height:21px}.check.pass .check-mark{color:#fff;background:var(--accent);border-color:var(--accent)}.check.fail .check-mark{color:var(--danger);border-color:#d9a19d}.check-explanation{color:var(--muted);grid-column:2/-1;font-size:13px}.activity{margin:0;padding:0;list-style:none}.activity li{border-bottom:1px solid var(--line);grid-template-columns:85px 1fr;gap:12px;padding:10px 0;font-size:14px;display:grid}.activity time{color:var(--muted);font-variant-numeric:tabular-nums}.countdown{text-align:center;padding:90px 20px}.countdown strong{font-variant-numeric:tabular-nums;font-size:clamp(80px,16vw,180px);font-weight:500;line-height:1;display:block}.result-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.build-head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.build-score{font-variant-numeric:tabular-nums;font-size:34px}.preview-frame{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;height:430px;margin:20px 0}.vote-options{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.outcome{border:1px solid var(--accent);border-radius:var(--radius);background:#f0f7f3;margin:28px 0;padding:34px}.outcome h2{font-size:38px}.sample-stage{margin-top:30px}dialog{border:1px solid var(--line);width:min(480px,100% - 32px);box-shadow:var(--shadow);border-radius:16px;padding:28px}dialog::backdrop{background:#14181659}@media (max-width:850px){.site-header nav{display:none}.hero,.price-section,.lobby-grid,.arena-grid,.result-grid{grid-template-columns:1fr}.hero{min-height:0;padding-top:64px}.steps{grid-template-columns:1fr;gap:26px}.step:before{margin-bottom:16px}.arena-top{grid-template-columns:1fr}.timer{text-align:left}.arena-grid{flex-direction:column;display:flex}.arena-grid>.stack{display:contents}.arena-grid>.stack:nth-child(2)>section:first-child{order:1}.arena-grid>.stack:first-child>section:first-child{order:2}.arena-grid>.stack:first-child>section:nth-child(2){order:3}.arena-grid>.stack:nth-child(2)>section:nth-child(2){order:4}}@media (max-width:520px){body{font-size:17px}.site-header,.site-footer,.container,.narrow{width:min(100% - 28px,1180px)}.site-header{min-height:70px}.site-header .button{padding-inline:12px}.site-footer{flex-direction:column;justify-content:center;align-items:flex-start;gap:4px}.hero{gap:46px;padding-bottom:70px}.actions{display:grid}.button{width:100%}.sample-card{padding:18px}.track{grid-template-columns:70px minmax(0,1fr) 37px;gap:7px}.track-points{gap:2px}.optional-grid,.invite,.vote-options{grid-template-columns:1fr}.form-shell{margin-top:24px;padding:22px}.arena{width:min(100% - 20px,1320px);padding-top:22px}.race-tracks .track{grid-template-columns:78px minmax(0,1fr) 52px}.panel{padding:18px}.preview-frame{height:340px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}