:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100vh;background:#0a0a0a;color:#fafafa}.shell{min-height:100vh;display:grid;place-items:center;padding:2rem}.game-container{display:flex;flex-direction:column;align-items:center;gap:1rem}.court{border:2px solid rgba(233,69,96,.4);border-radius:8px;box-shadow:0 0 30px #e9456026,inset 0 0 60px #00000080}.controls{display:flex;gap:1rem}.key-hint{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem;letter-spacing:.1em;color:#ffffff80;border:1px solid rgba(255,255,255,.15);padding:.3rem .75rem;border-radius:.375rem;background:#ffffff08}