*{box-sizing:border-box;-webkit-user-select:none;user-select:none;margin:0;padding:0}html,body{overscroll-behavior:none;background-color:#a0e0ff;width:100%;height:100%;font-family:Jua,Outfit,sans-serif;overflow:hidden}#app{width:100%;height:100dvh;position:fixed;inset:0}canvas{touch-action:none;width:100%;height:100%;display:block}#ui-overlay{pointer-events:none;width:100%;height:100dvh;padding:max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));z-index:10;flex-direction:column;justify-content:space-between;display:flex;position:fixed;inset:0}.hud-header{grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;width:100%;max-width:1000px;margin:0 auto;display:grid}.hud-group{align-items:center;gap:12px;min-width:0;display:flex}.hud-score{flex-wrap:wrap;justify-content:flex-end;padding:3px 0}.hud-card{-webkit-backdrop-filter:blur(10px);color:#333;white-space:nowrap;font-variant-numeric:tabular-nums;background:#ffffffd9;border:3px solid #fff;border-radius:50px;align-items:center;gap:10px;padding:10px 20px;font-size:1.3rem;display:flex;box-shadow:0 8px 24px #0000001f}.hud-icon{font-size:1.6rem}.heart-container{gap:6px;display:flex}.heart{font-size:1.6rem;transition:transform .2s}.heart.empty{filter:grayscale()opacity(.3)}.fever-bar-container{background:#00000026;border:2px solid #fff;border-radius:10px;flex-shrink:1;width:180px;min-width:100px;height:20px;position:relative;overflow:hidden}.fever-bar-fill{background:linear-gradient(90deg,#f90,#ffea00,#f05);border-radius:10px;width:0%;height:100%;transition:width .15s}.fever-text{color:#fff;text-shadow:0 1px 3px #0009;letter-spacing:1px;font-size:.75rem;font-weight:700;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.combo-badge{color:#fff;white-space:nowrap;background:linear-gradient(135deg,#f07,#f90);border-radius:20px;padding:6px 14px;font-size:1.2rem;font-weight:700;animation:.5s infinite alternate pulse;display:none}.modal-screen{width:100%;height:100dvh;padding:max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));-webkit-backdrop-filter:blur(12px);pointer-events:auto;z-index:20;background:#a0e0ff66;justify-content:center;align-items:center;transition:opacity .3s;display:flex;position:fixed;inset:0;overflow:hidden}.modal-screen.hidden{opacity:0;pointer-events:none}.modal-card{text-align:center;overscroll-behavior:contain;touch-action:pan-y;background:#fffffff2;border:5px solid #fff;border-radius:32px;width:100%;max-width:480px;min-height:0;max-height:100%;padding:clamp(20px,5vw,40px);animation:3s ease-in-out infinite floatCard;overflow-y:auto;transform:translateY(0);box-shadow:0 20px 50px #00508c40}@keyframes floatCard{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.game-title{color:#e36;text-shadow:3px 3px #fd0,5px 5px #0000001a;margin-bottom:8px;font-size:clamp(1.8rem,5vw,2.6rem);line-height:1.2}.subtitle{color:#579;margin-bottom:24px;font-size:clamp(1rem,3vw,1.2rem);line-height:1.45}.controls-guide{color:#456;background:#f0f8ff;border-radius:16px;justify-content:space-around;gap:12px;margin-bottom:24px;padding:16px;display:flex}.control-item{flex-direction:column;flex:1;align-items:center;gap:4px;min-width:0;display:flex}.key-cap{color:#246;background:#fff;border:2px solid #cde;border-bottom:4px solid #abc;border-radius:8px;max-width:100%;padding:4px 10px;font-size:.9rem;font-weight:700;line-height:1.3}.touch-guide{color:#579;margin:-8px 0 20px;font-size:.9rem;line-height:1.4}.btn-primary{color:#fff;cursor:pointer;background:linear-gradient(135deg,#f48,#f83);border:none;border-radius:50px;width:100%;padding:16px 36px;font-family:Jua,sans-serif;font-size:1.5rem;transition:transform .15s,box-shadow .15s;box-shadow:0 8px 20px #f486}.btn-primary:hover{transform:scale(1.05);box-shadow:0 12px 28px #ff448880}.btn-primary:active{transform:scale(.98)}.stat-box{color:#345;background:#f5f9ff;border-radius:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;padding:12px 20px;font-size:1.2rem;display:flex}.sound-toggle{cursor:pointer;pointer-events:auto;z-index:15;touch-action:manipulation;background:#ffffffd9;border:2px solid #fff;border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;font-size:1.4rem;display:flex;position:relative;box-shadow:0 4px 12px #0000001a}.mobile-controls{bottom:calc(20px + env(safe-area-inset-bottom));width:100%;padding:0 max(20px, env(safe-area-inset-right)) 0 max(20px, env(safe-area-inset-left));pointer-events:none;z-index:15;justify-content:space-between;display:flex;position:absolute;left:0}.touch-btn{-webkit-backdrop-filter:blur(8px);color:#f48;pointer-events:auto;touch-action:none;cursor:pointer;appearance:none;background:#fffc;border:4px solid #fff;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:3px;width:76px;height:76px;font-family:inherit;font-size:1.8rem;line-height:1;display:flex;box-shadow:0 8px 20px #00000026}.control-label{font-size:.78rem;line-height:1.2}button:focus-visible{outline-offset:4px;outline:3px solid #246}.touch-btn:active{background:#fffffff2;transform:scale(.92)}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.1)}}@media (width<=900px){.hud-header{grid-template-columns:minmax(0,1fr) 48px;gap:8px 12px}.hud-status{grid-area:1/1}.hud-score{grid-area:2/1/auto/-1;justify-content:flex-start}.sound-toggle{grid-area:1/2}.hud-card{gap:6px;padding:8px 12px;font-size:1.05rem}.hud-icon,.heart{font-size:1.3rem}.combo-badge{padding:6px 10px;font-size:.95rem}}@media (width<=480px){#ui-overlay{padding:max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left))}.hud-header{grid-template-columns:minmax(0,1fr) 44px;gap:6px 8px}.hud-group{gap:8px}.hud-card{gap:5px;padding:6px 9px;font-size:.95rem}.hud-icon,.heart{font-size:1.15rem}.heart-container{gap:2px}.fever-bar-container{flex:1;min-width:90px}.fever-text{white-space:nowrap;font-size:.6rem}.combo-badge{padding:5px 8px;font-size:.8rem}.sound-toggle{width:44px;height:44px;font-size:1.2rem}.controls-guide{gap:8px;padding:12px 8px;font-size:.9rem}.key-cap{padding:4px 6px;font-size:.75rem}.touch-guide{font-size:.8rem}.stat-box{padding:10px 12px;font-size:1rem}.btn-primary{padding:14px 18px;font-size:1.25rem}}@media (height<=480px) and (width>=481px){#ui-overlay{padding-top:max(10px, env(safe-area-inset-top))}.modal-card{padding:20px;animation:none}.game-title{font-size:2rem}.subtitle{margin-bottom:12px;font-size:1rem}.controls-guide{margin-bottom:12px;padding:10px}.touch-guide{margin-bottom:12px;font-size:.8rem}.stat-box{margin-bottom:8px;padding:8px 12px;font-size:1rem}.btn-primary{padding:12px 24px;font-size:1.2rem}.mobile-controls{bottom:calc(12px + env(safe-area-inset-bottom))}.touch-btn{width:68px;height:68px;font-size:1.6rem}}@media (hover:hover) and (pointer:fine) and (width>=768px){.mobile-controls{display:none}}@media (any-pointer:coarse){.mobile-controls{display:flex}}@media (prefers-reduced-motion:reduce){.modal-card,.combo-badge{animation:none}}