:root{--brand:#365a40;--text:#1f2a24;--muted:#5d6a61;--bg:#fbfbf8;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;line-height:1.6}a{color:var(--brand)}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}header.top{justify-content:space-between;align-items:center;max-width:1040px;margin:0 auto;padding:18px 20px;display:flex}header.top nav{gap:18px;display:flex}.hero{padding:64px 0 48px}.hero h1{margin:0 0 16px;font-size:clamp(32px,6vw,56px);line-height:1.1}.button{background:var(--brand);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:14px 22px;font-size:16px;font-weight:600;text-decoration:none;display:inline-block}section{padding:40px 0}.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;display:grid}.card{background:#fff;border:1px solid #e3e7e0;border-radius:12px;padding:20px}footer{color:var(--muted);text-align:center;padding:32px 20px}@media (width<=600px){header.top nav{display:none}}.game-wrap{text-align:center;max-width:420px;margin:0 auto;padding:24px 16px}.hud{justify-content:space-between;margin-bottom:8px;font-size:18px;display:flex}canvas{border:2px solid var(--brand);touch-action:manipulation;background:#fff;border-radius:12px;width:100%;height:auto}#start{margin-top:16px}