:root{color:#1f2430;background:radial-gradient(circle at top,#f2eadf,#e6dcc8 46%,#d9ccb3);font-family:Cascadia Mono,IBM Plex Mono,Segoe UI,sans-serif;line-height:1.4;font-weight:400}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-height:100vh}.shell{display:grid;gap:1.5rem;min-height:100vh;padding:1.5rem;align-items:start}.intro{max-width:52rem}.eyebrow{margin:0 0 .4rem;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:#5b4636}h1{margin:0;font-size:clamp(2rem,4vw,3.5rem);line-height:.95}.lede{max-width:52rem;margin:.8rem 0 0;font-size:1rem;color:#3f4757}.controls{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}.controls span{border:1px solid rgba(31,36,48,.16);border-radius:999px;padding:.45rem .8rem;background:#ffffff73;font-size:.85rem}.stage{width:min(100%,1100px);padding:1rem;border:2px solid rgba(31,36,48,.16);border-radius:24px;background:linear-gradient(160deg,#ffffffb8,#f5ebd9d1);box-shadow:0 18px 48px #5b463629}.game-shell{position:relative}#game{overflow:hidden;border-radius:16px;border:2px solid rgba(31,36,48,.24);background:#f4f1de}.run-hud{position:absolute;top:12px;left:12px;z-index:4;min-width:196px;padding:.45rem .7rem;border:1px solid rgba(244,241,222,.32);border-radius:10px;background:#1f2430d6;color:#f4f1de;font-size:.86rem;line-height:1.2;letter-spacing:.03em;pointer-events:none;box-shadow:0 8px 24px #1f243033}#game canvas{display:block;width:100%;height:auto}@media(max-width:720px){.shell{padding:1rem}.stage{padding:.65rem;border-radius:18px}}