*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{background:#0a0a0f;display:flex;justify-content:center;align-items:center;width:100vw;height:100vh;overflow:hidden;font-family:Courier New,monospace}#game-container{position:relative;width:100vw;height:100vh}canvas{display:block;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}#ui-overlay{position:absolute;inset:0;pointer-events:none;z-index:10}#hud{position:absolute;top:0;left:0;width:100%;padding:12px 20px;display:flex;justify-content:space-between;align-items:flex-start}#lives-hud{position:absolute;top:0;left:50%;transform:translate(-50%);padding:12px 0}.hud-box{background:#0009;border:1px solid rgba(255,200,0,.4);border-radius:6px;padding:6px 14px;color:#ffe000;font-size:clamp(12px,2.5vw,18px);font-weight:700;letter-spacing:1px;text-shadow:0 0 10px rgba(255,224,0,.67)}.hud-label{font-size:.6em;color:#aaa;letter-spacing:2px;display:block;margin-bottom:2px}#lives-display{display:flex;gap:4px;align-items:center;margin-top:4px}.heart{font-size:1em}#speed-bar-wrap{width:clamp(60px,12vw,120px);height:6px;background:#ffffff1a;border-radius:3px;overflow:hidden;margin-top:4px}#speed-bar{height:100%;background:linear-gradient(90deg,#0f8,#ffe000,#f40);border-radius:3px;transition:width .2s;width:30%}#screen-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#000000d1;z-index:20;pointer-events:all;transition:opacity .4s;gap:12px}#screen-overlay.hidden{display:none}.screen-title{font-size:clamp(32px,8vw,72px);font-weight:900;color:#ffe000;letter-spacing:4px;text-shadow:0 0 30px #ffe000,0 0 60px #ff8800;margin-bottom:8px;text-align:center}.screen-sub{font-size:clamp(11px,2.5vw,18px);color:#888;letter-spacing:3px;margin-bottom:30px;text-align:center}.screen-score{font-size:clamp(18px,4vw,32px);color:#fff;margin-bottom:8px;letter-spacing:2px}.screen-best{font-size:clamp(12px,2.5vw,18px);color:#ffe000;margin-bottom:0;letter-spacing:2px}.btn{background:#ffe000;color:#0a0a0f;border:none;padding:clamp(12px,3vw,18px) clamp(28px,7vw,60px);font-size:clamp(14px,3vw,22px);font-weight:900;letter-spacing:4px;border-radius:4px;cursor:pointer;font-family:Courier New,monospace;transition:background .15s,transform .1s;box-shadow:0 0 30px #ffe000ab;pointer-events:all}.btn:hover{background:#fff;transform:scale(1.05)}.btn:active{transform:scale(.97)}#mobile-controls{position:absolute;bottom:0;left:0;width:100%;height:30%;display:flex;justify-content:space-between;align-items:center;padding:0 20px 20px;z-index:15;pointer-events:none}.ctrl-btn{pointer-events:all;background:#ffe0001f;border:2px solid rgba(255,224,0,.35);border-radius:50%;width:clamp(60px,15vw,90px);height:clamp(60px,15vw,90px);display:flex;align-items:center;justify-content:center;color:#ffe000;font-size:clamp(24px,6vw,40px);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;cursor:pointer;transition:background .1s}.ctrl-btn:active{background:#ffe00059}.btn-secondary{background:transparent;border:2px solid rgba(255,255,255,.35);color:#fff;font-size:clamp(11px,2.2vw,16px);letter-spacing:3px;padding:clamp(8px,2vw,12px) clamp(20px,5vw,40px);box-shadow:none;opacity:.8}.btn-secondary:hover{background:#ffffff14;border-color:#fff;opacity:1;transform:scale(1.03)}#leaderboard-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#000000d1;z-index:20;padding:24px 16px;box-sizing:border-box;pointer-events:all}#leaderboard-overlay.hidden{display:none}#leaderboard-list{width:100%;max-width:420px;margin:8px 0 16px;display:flex;flex-direction:column;gap:4px}.lb-row{display:flex;align-items:center;padding:8px 12px;border-radius:6px;background:#ffffff0d}.lb-row-alt{background:#ffffff1a}.lb-rank{width:36px;font-size:1.1em;flex-shrink:0}.lb-name{flex:1;font-size:.95em;color:#e0e0e0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lb-score{font-size:1em;font-weight:700;color:#ffe000;flex-shrink:0}.lb-loading,.lb-empty{text-align:center;color:#ffffff80;font-size:.9em;padding:24px 0}.lb-row-you{font-weight:700}