body{margin:0;font-family:Arial,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);overflow:hidden}.menu{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:1000;transition:opacity .3s ease-in-out}.menu.hidden{display:none}.menu-content{text-align:center;background:#fffffff2;padding:40px;border-radius:20px;box-shadow:0 20px 40px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);max-width:400px;width:90%}.menu-content h1{font-size:3rem;margin:0 0 20px;background:linear-gradient(45deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 2px 4px rgba(0,0,0,.1)}.menu-content p{font-size:1.2rem;color:#555;margin:0 0 30px;line-height:1.5}.button-container{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}.menu-button{background:linear-gradient(45deg,#667eea,#764ba2);color:#fff;border:none;padding:15px 30px;font-size:1.1rem;font-weight:700;border-radius:50px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #667eea4d;text-transform:uppercase;letter-spacing:1px;min-width:140px}.menu-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66;background:linear-gradient(45deg,#5a67d8,#6b46c1)}.menu-button:active{transform:translateY(0);box-shadow:0 2px 10px #667eea4d}.menu-button.secondary{background:linear-gradient(45deg,#718096,#4a5568);box-shadow:0 4px 15px #7180964d}.menu-button.secondary:hover{background:linear-gradient(45deg,#4a5568,#2d3748);box-shadow:0 6px 20px #71809666}.score-display{position:fixed;top:20px;left:20px;background:#fff3;padding:12px 20px;border-radius:25px;font-size:1.3rem;font-weight:700;font-family:Arial,sans-serif;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.3);box-shadow:0 4px 15px #0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);z-index:100;display:flex;align-items:center;gap:8px}.hud-icon{font-size:1.4rem;line-height:1;filter:drop-shadow(0 2px 2px rgba(0,0,0,.2))}@keyframes scorePulse{0%{transform:scale(1)}50%{transform:scale(1.3)}to{transform:scale(1)}}@keyframes scoreFlash{0%{color:#fff}50%{color:gold}to{color:#fff}}.score-display.pulse{animation:scorePulse .4s ease-out,scoreFlash .4s ease-out}.floating-text{position:fixed;pointer-events:none;font-family:Arial,sans-serif;font-size:2rem;font-weight:700;color:gold;text-shadow:0 2px 8px rgba(0,0,0,.5);z-index:1000;opacity:0;transform:translateY(0);transition:opacity .3s ease-out,transform 1s ease-out}.floating-text.show{opacity:1;transform:translateY(-80px)}.floating-text.perfect{color:#0f8;font-size:2.2rem}.score-display.hidden{display:none}.timer-display{position:fixed;top:20px;left:50%;transform:translate(-50%);background:#fff3;padding:12px 20px;border-radius:25px;font-size:1.3rem;font-weight:700;font-family:Arial,sans-serif;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.3);box-shadow:0 4px 15px #0003;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);z-index:100;display:flex;align-items:center;gap:8px}.timer-display.hidden{display:none}.countdown-display{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2000;display:flex;align-items:center;justify-content:center;pointer-events:none}#countdownNumber{font-size:12rem;font-weight:700;font-family:Arial,sans-serif;color:#fff;text-shadow:0 4px 20px rgba(0,0,0,.5),0 0 40px rgba(255,255,255,.5);animation:countdownPulse .8s ease-out}@keyframes countdownPulse{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.2);opacity:1}to{transform:scale(1);opacity:.8}}.countdown-display.hidden{display:none}#scoreText{font-size:1.5rem;font-weight:700;color:#667eea;margin:10px 0 20px}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000c;display:flex;justify-content:center;align-items:center;z-index:2000;transition:opacity .3s ease-in-out;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal.hidden{display:none}.modal-content{background:#fffffff2;border-radius:20px;box-shadow:0 25px 50px #0006;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);max-width:600px;width:90%;max-height:90vh;overflow-y:auto;position:relative}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:30px 30px 20px;border-bottom:1px solid rgba(0,0,0,.1)}.modal-header h2{margin:0;font-size:2.5rem;background:linear-gradient(45deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.close-button{background:none;border:none;font-size:2rem;color:#666;cursor:pointer;padding:5px 10px;border-radius:50%;transition:all .3s ease;width:40px;height:40px;display:flex;align-items:center;justify-content:center}.close-button:hover{background:#0000001a;color:#333;transform:scale(1.1)}.modal-body{padding:20px 30px}.rule-section{margin-bottom:25px}.rule-section h3{font-size:1.4rem;margin:0 0 10px;color:#333;display:flex;align-items:center;gap:10px}.rule-section p{margin:0 0 15px;color:#555;line-height:1.6;font-size:1rem}.rule-section ul{margin:0;padding-left:20px;color:#555}.rule-section li{margin-bottom:8px;line-height:1.5}.rule-section li strong{color:#333}.modal-footer{padding:20px 30px 30px;border-top:1px solid rgba(0,0,0,.1);text-align:center}@media (max-width: 600px){.menu-content{padding:30px 20px}.menu-content h1{font-size:2.5rem}.button-container{flex-direction:column;align-items:center}.menu-button{width:100%;max-width:200px}.score-display{top:10px;left:10px;font-size:1rem;padding:8px 16px}.timer-display{top:10px;left:auto;right:10px;transform:none;font-size:1rem;padding:8px 16px}.modal-content{width:95%;max-height:95vh}.modal-header,.modal-body,.modal-footer{padding-left:20px;padding-right:20px}.modal-header h2{font-size:2rem}.rule-section h3{font-size:1.2rem}}