:root{color-scheme:dark;font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:#050510;color:#fafafa;overflow:hidden;user-select:none;-webkit-user-select:none}#root{display:flex;justify-content:center;align-items:center}.game-container{position:relative;width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center}canvas{display:block;border-radius:12px;box-shadow:0 0 60px #00ffff26,0 0 120px #ff00ff14}.hud{position:absolute;top:20px;left:50%;transform:translate(-50%);display:flex;gap:32px;z-index:10;pointer-events:none}.hud-item{text-align:center}.hud-label{font-size:.6rem;letter-spacing:.25em;text-transform:uppercase;color:#fff6;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.hud-value{font-size:1.8rem;font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:linear-gradient(135deg,#0ff,#f0f);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hud-combo{color:#fc0}.screen-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:20;background:#050510d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.screen-title{font-size:3.5rem;font-weight:800;letter-spacing:-.03em;background:linear-gradient(135deg,#0ff,#f0f,#fc0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px}.screen-subtitle{font-size:1rem;color:#ffffff80;margin-bottom:40px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.btn{padding:14px 48px;font-size:1.1rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;border:none;border-radius:50px;cursor:pointer;background:linear-gradient(135deg,#0ff,#f0f);color:#050510;transition:transform .15s,box-shadow .15s;font-family:inherit}.btn:hover{transform:scale(1.05);box-shadow:0 0 30px #0ff6,0 0 30px #ff00ff4d}.btn:active{transform:scale(.97)}.controls-hint{margin-top:24px;font-size:.75rem;color:#ffffff59;text-align:center;line-height:1.8;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.controls-hint kbd{display:inline-block;padding:2px 8px;border:1px solid rgba(255,255,255,.2);border-radius:4px;font-size:.7rem;background:#ffffff0f;margin:0 2px}.final-score{font-size:5rem;font-weight:800;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:linear-gradient(135deg,#0ff,#f0f);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:8px 0 4px}.stat-row{display:flex;gap:40px;margin:16px 0 32px}.stat{text-align:center}.stat-val{font-size:1.5rem;font-weight:700;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#fc0}.stat-label{font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;color:#ffffff59;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.powerup-bar{position:absolute;bottom:24px;left:50%;transform:translate(-50%);display:flex;gap:8px;z-index:10;pointer-events:none}.powerup-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;border:2px solid;animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.6}}.touch-area{position:absolute;bottom:0;left:0;right:0;height:40%;z-index:5;display:flex}.touch-left,.touch-right{flex:1}.difficulty-badge{position:absolute;top:70px;left:50%;transform:translate(-50%);padding:4px 16px;border-radius:20px;font-size:.65rem;letter-spacing:.15em;text-transform:uppercase;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;z-index:10;pointer-events:none;border:1px solid;transition:all .5s}