: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;margin:0;padding:0}html,body,#root{min-height:100vh;background:#0a0a0a;color:#fafafa;overflow:hidden;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}.game-container{display:flex;flex-direction:column;height:100vh;transition:background .15s}.game-container.flash-wrong{background:#ef44441f}.game-container.flash-correct{background:#22c55e1a}.header{display:flex;align-items:center;justify-content:space-between;padding:.75rem 1.25rem;background:#ffffff0a;border-bottom:1px solid rgba(255,255,255,.08);z-index:10;flex-shrink:0}.target-display{display:flex;align-items:center;gap:.6rem}.target-label{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:#fff9}.target-circle{width:32px;height:32px;border-radius:50%;border:3px solid rgba(255,255,255,.3);animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.12)}}.target-name{font-size:1.1rem;font-weight:700;text-transform:capitalize}.stats{display:flex;gap:1.25rem}.stat{display:flex;flex-direction:column;align-items:center;line-height:1.2}.stat-value{font-size:1.1rem;font-weight:700}.stat-label{font-size:.6rem;text-transform:uppercase;letter-spacing:.1em;color:#fff6}.play-area{flex:1;position:relative;overflow:hidden}.circle{position:absolute;width:64px;height:64px;border-radius:50%;border:3px solid rgba(255,255,255,.25);cursor:pointer;transition:transform .06s;z-index:5;box-shadow:0 4px 16px #00000059}.circle:active{transform:translate(-50%,-50%) scale(.8)!important}.overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:20;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.overlay h1{font-size:2.5rem;font-weight:800;letter-spacing:-.03em;background:linear-gradient(135deg,#ef4444,#eab308,#22c55e,#3b82f6,#a855f7);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.overlay p{font-size:1rem;color:#ffffffb3}.overlay .hint{font-size:.8rem;color:#fff6}.overlay .high-score{font-size:.85rem;color:#ffffff80;margin-top:.25rem}.gameover .final-score{font-size:1.5rem;font-weight:700;color:#fafafa}.gameover .new-record{font-size:1.1rem;font-weight:700;color:#eab308;animation:pulse .8s ease-in-out infinite}.btn{padding:.75rem 2.5rem;border:none;border-radius:9999px;font-size:1rem;font-weight:700;cursor:pointer;background:linear-gradient(135deg,#3b82f6,#8b5cf6);color:#fff;margin-top:.5rem;transition:transform .1s,box-shadow .1s;box-shadow:0 4px 20px #3b82f64d}.btn:hover{transform:scale(1.05);box-shadow:0 6px 24px #3b82f666}.btn:active{transform:scale(.97)}.btn-secondary{background:#ffffff1a;box-shadow:none;font-weight:500}.btn-secondary:hover{background:#ffffff26;box-shadow:none}