: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}.arena{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1.5rem;padding:2rem}.arena h1{margin:0;font-size:1.6rem;font-weight:700;letter-spacing:-.02em;color:#e0e0e0}.arena svg{border-radius:1rem;background:#111;border:1px solid rgba(255,255,255,.08)}.controls{display:flex;gap:1rem}.controls button{font-family:inherit;font-size:.9rem;font-weight:600;padding:.5rem 1.4rem;border-radius:.5rem;border:1px solid rgba(255,255,255,.15);background:#ffffff0f;color:#e0e0e0;cursor:pointer;transition:background .15s,border-color .15s}.controls button:hover{background:#ffffff1f;border-color:#ffffff40}.controls button.primary{background:#5aa0ff33;border-color:#5aa0ff66;color:#8ec4ff}.controls button.primary:hover{background:#5aa0ff59}.score{display:flex;gap:3rem;font-size:1rem;font-weight:600}.score .p1{color:#5ac8fa}.score .p2{color:#ff6b6b}