:root{--page: #0f172a;--surface: #1e293b;--hairline: #334155;--text: #e2e8f0;--muted: #94a3b8;--accent: #60a5fa;--action: #3b82f6;--action-hover: #2563eb;--column: 46rem}*{box-sizing:border-box}html{overflow-x:hidden}body{margin:0;padding:0 1rem 4rem;background:var(--page);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.6;overflow-x:hidden}h1,h2,h3{line-height:1.2;margin:0 0 .5rem}h1{font-size:clamp(2.5rem,12vw,4.5rem);letter-spacing:-.02em;color:var(--accent)}h2{font-size:clamp(1.5rem,6vw,2rem)}a{color:var(--accent)}.hero,main>section,footer{max-width:var(--column);margin:0 auto}.hero{padding:3rem 0 2rem;text-align:center}.tagline{font-size:clamp(1.05rem,4vw,1.3rem);color:var(--text);margin:0 auto 2rem;max-width:34rem}.hero-caption,.play-hint,.fine{color:var(--muted);font-size:.9rem}.hero-board,.teach-board,.play-board{display:flex;justify-content:center;margin:0 auto 1rem;min-height:4rem}.hero-board canvas,.teach-board canvas,.play-board canvas{max-width:100%;height:auto;border:1px solid var(--hairline);border-radius:.5rem;background:var(--surface)}.btn{display:inline-block;border:1px solid var(--hairline);background:var(--surface);color:var(--text);font:inherit;font-weight:600;padding:.7rem 1.4rem;border-radius:.5rem;cursor:pointer;text-decoration:none}.btn:hover{border-color:var(--accent)}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--action);border-color:var(--action);color:#fff}.btn-primary:hover{background:var(--action-hover);border-color:var(--action-hover)}.btn-quiet{background:transparent;color:var(--muted);font-weight:400;padding:.4rem .8rem}main>section{padding:3rem 0;border-top:1px solid var(--hairline)}.steps{list-style:none;counter-reset:step;padding:0;margin:2rem 0}.steps li{counter-increment:step;position:relative;padding-left:3rem;margin-bottom:2rem}.steps li:before{content:counter(step);position:absolute;left:0;top:0;width:2rem;height:2rem;display:grid;place-items:center;border-radius:50%;background:var(--surface);border:1px solid var(--hairline);color:var(--accent);font-weight:700}.steps p{margin:0;color:var(--muted)}.teach{margin:2rem 0 1rem;padding:1.5rem 0 0}.teach figcaption{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem}.honest{color:var(--muted);font-size:.9rem;font-style:italic}.play-setup label{display:block;font-weight:600;margin-bottom:.4rem}select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--hairline);border-radius:.5rem;padding:.6rem;width:100%;max-width:22rem}.map-blurb{color:var(--muted);margin:.6rem 0 1.5rem}.scoreline{display:flex;flex-wrap:wrap;gap:1.25rem;justify-content:center;margin-bottom:1rem;font-variant-numeric:tabular-nums}.scoreline .you{color:var(--accent);font-weight:700}.scoreline .them{color:#f87171;font-weight:700}.play-controls{display:flex;gap:.75rem;justify-content:center;margin-top:1rem}.play-error{background:#7f1d1d;border:1px solid #b91c1c;border-radius:.5rem;padding:1rem;color:#fee2e2}.outcome{font-size:1.2rem;font-weight:700;color:var(--accent)}footer{padding-top:3rem;text-align:center;border-top:1px solid var(--hairline);margin-top:3rem}.feedback{max-width:46rem;margin:0 auto;padding:2rem 1rem 3rem}.feedback-blurb{color:var(--muted, #9aa4b2);margin-bottom:1rem}.feedback form{display:flex;flex-direction:column;gap:.6rem;align-items:flex-start}.feedback label{font-weight:600}.feedback textarea{width:100%;box-sizing:border-box;padding:.6rem;font:inherit;color:inherit;background:#ffffff0a;border:1px solid rgba(255,255,255,.18);border-radius:6px;resize:vertical}.feedback textarea:focus-visible,.feedback button:focus-visible{outline:2px solid #7aa2ff;outline-offset:2px}.feedback-status{min-height:1.4em;margin-top:.8rem;color:var(--muted, #9aa4b2)}