*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#0a0a0a;color:#fafafa;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;touch-action:none;user-select:none;-webkit-user-select:none}#root{display:flex;justify-content:center;align-items:center}.game-container{position:relative;width:100%;max-width:420px;height:100vh;max-height:100dvh;overflow:hidden;background:linear-gradient(180deg,#0a0015,#1a0030 40%,#0d001a)}canvas{display:block;width:100%;height:100%}.score-display{position:absolute;top:16px;left:50%;transform:translate(-50%);font-size:2rem;font-weight:700;letter-spacing:.05em;color:#fff;text-shadow:0 0 20px rgba(160,80,255,.8),0 0 40px rgba(160,80,255,.4);z-index:10;pointer-events:none}.combo-display{position:absolute;top:52px;left:50%;transform:translate(-50%);font-size:.9rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;z-index:10;pointer-events:none;transition:opacity .2s}.start-screen,.gameover-screen{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:1.5rem;z-index:20;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.start-screen h1,.gameover-screen h1{font-size:2rem;font-weight:800;text-align:center;background:linear-gradient(135deg,#a855f7,#6366f1,#ec4899);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.start-screen p,.gameover-screen p{font-size:1rem;color:#fff9;text-align:center}.final-score{font-size:3rem;font-weight:800;color:#a855f7;text-shadow:0 0 30px rgba(168,85,247,.6)}.btn{padding:14px 48px;font-size:1.1rem;font-weight:700;letter-spacing:.05em;border:none;border-radius:50px;cursor:pointer;background:linear-gradient(135deg,#a855f7,#6366f1);color:#fff;box-shadow:0 4px 24px #a855f766;transition:transform .15s,box-shadow .15s}.btn:active{transform:scale(.95);box-shadow:0 2px 12px #a855f74d}.tap-hint{font-size:.8rem;color:#ffffff59;letter-spacing:.1em;text-transform:uppercase}