*{margin:0;padding:0;box-sizing:border-box}
body{overflow:hidden;font-family:'Segoe UI',sans-serif;background:#0a0a15;color:#fff;user-select:none;-webkit-user-select:none}
#game-container{position:fixed;top:0;left:0;width:100%;height:100%}
#game-container canvas{display:block}
#hud{position:fixed;top:0;left:0;right:0;padding:20px 30px;display:flex;justify-content:space-between;align-items:flex-start;z-index:10;pointer-events:none}
#score-panel{display:flex;gap:30px}
.hud-item{display:flex;flex-direction:column;align-items:center}
.hud-label{font-size:10px;font-weight:600;letter-spacing:2px;color:#888;text-transform:uppercase}
#score,#level,#high-score{font-size:36px;font-weight:800;color:#ffd700;text-shadow:0 0 20px rgba(255,215,0,.5)}
#combo-display{position:fixed;top:80px;left:50%;transform:translateX(-50%);font-size:32px;font-weight:900;letter-spacing:3px;color:#00ff88;text-shadow:0 0 30px rgba(0,255,136,.9);z-index:20;pointer-events:none}
#combo-display.hidden{display:none}
#player-card{position:fixed;top:16px;left:16px;display:flex;align-items:center;gap:12px;padding:8px 16px 8px 8px;border-radius:999px;background:rgba(20,20,40,.85);border:1px solid rgba(255,215,0,.3);color:#fff;z-index:50;backdrop-filter:blur(8px)}
#player-card.hidden{display:none}
#player-card img{width:48px;height:48px;border-radius:50%;background:rgba(255,215,0,.2);border:2px solid rgba(255,215,0,.4)}
#player-card .player-info b{display:block;font-size:16px}
#player-card .player-info span{font-size:12px;opacity:.7}
#player-card button{margin-left:8px;border:0;border-radius:999px;padding:6px 12px;background:linear-gradient(135deg,#ffd700,#ff8800);color:#000;font-weight:700;cursor:pointer;font-size:13px}
#player-card button.hidden{display:none}
.overlay{position:fixed;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:100;background:rgba(0,0,0,.8);backdrop-filter:blur(12px)}
.overlay.hidden{display:none}
.panel{text-align:center;padding:50px 60px;background:rgba(15,10,30,.95);border:1px solid rgba(255,215,0,.3);border-radius:16px;box-shadow:0 0 60px rgba(255,215,0,.15),inset 0 0 60px rgba(0,0,0,.5)}
.panel h1{font-size:48px;font-weight:800;letter-spacing:4px;margin-bottom:8px;background:linear-gradient(135deg,#ffd700,#ff8800);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:14px;color:#888;letter-spacing:2px;margin-bottom:20px;text-transform:uppercase}
.controls-info{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.control{font-size:14px;color:#aaa}
kbd{display:inline-block;padding:2px 8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:4px;font-size:12px;font-family:monospace;color:#fff}
.hint{font-size:14px;color:#aaa;margin-bottom:20px;line-height:1.6}
.btn-primary{padding:14px 50px;font-size:18px;font-weight:700;letter-spacing:3px;color:#000;background:linear-gradient(135deg,#ffd700,#ff8800);border:none;border-radius:8px;cursor:pointer;transition:all .2s;text-transform:uppercase}
.btn-primary:hover{transform:scale(1.05);box-shadow:0 0 30px rgba(255,215,0,.4)}
.btn-primary:active{transform:scale(.98)}
.final-stats{display:flex;gap:40px;justify-content:center;margin:25px 0}
.stat{display:flex;flex-direction:column;gap:5px}
.stat span{font-size:12px;color:#888;text-transform:uppercase;letter-spacing:1px}
.stat strong{font-size:36px;font-weight:700;color:#ffd700}