:root{--neon-orange:#ff6a00;--neon-orange-rgb:255, 106, 0;--neon-blue:#00e5ff;--neon-blue-rgb:0, 229, 255;--neon-red:#f05;--neon-red-rgb:255, 0, 85;--neon-green:#39ff14;--bg-dark:#0a0b0e;--bg-panel:#12161ed9;--text-primary:#f0f2f5;--text-secondary:#8b9bb4;--border-glow:#00e5ff33;--font-hud:"Orbitron", monospace;--font-sans:"Inter", system-ui, -apple-system, sans-serif;--glow-blue:0 0 8px #00e5ff99, 0 0 16px #00e5ff4d;--glow-orange:0 0 8px #ff6a0099, 0 0 16px #ff6a004d;--glow-red:0 0 8px #f059, 0 0 16px #ff00554d;--glow-green:0 0 8px #39ff1499, 0 0 16px #39ff144d}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-dark);width:100%;height:100%;font-family:var(--font-sans);color:var(--text-primary);touch-action:none;position:fixed;overflow:hidden}#root{justify-content:center;align-items:center;width:100%;height:100%;display:flex;overflow:hidden}.glowing-text-orange{color:var(--neon-orange);text-shadow:var(--glow-orange);font-family:var(--font-hud)}.glowing-text-blue{color:var(--neon-blue);text-shadow:var(--glow-blue);font-family:var(--font-hud)}.glowing-text-red{color:var(--neon-red);text-shadow:var(--glow-red);font-family:var(--font-hud)}.glowing-text-green{color:var(--neon-green);text-shadow:var(--glow-green);font-family:var(--font-hud)}@keyframes neon-flicker{0%,19%,21%,23%,25%,54%,56%,to{text-shadow:var(--glow-orange);opacity:1}20%,24%,55%{text-shadow:none;opacity:.7}}@keyframes scanline{0%{transform:translateY(-100%)}to{transform:translateY(100%)}}@keyframes engine-vibration{0%,to{transform:translateY(0)}50%{transform:translateY(-1px)}}.menu-title{font-family:var(--font-hud);text-transform:uppercase;letter-spacing:2px;text-align:center;margin-bottom:5px;font-size:2.2rem;font-weight:900;animation:4s infinite alternate neon-flicker}#game-container{background:var(--bg-dark);border-left:1px solid #00e5ff1a;border-right:1px solid #00e5ff1a;flex-direction:column;width:100vw;max-width:480px;height:100svh;max-height:960px;display:flex;position:relative;overflow:hidden;box-shadow:0 0 30px #00e5ff26}canvas{width:100%;height:100%;display:block}.scanlines{z-index:10;pointer-events:none;background:linear-gradient(#12101000 50%,#00000040 50%) 0 0/100% 4px,linear-gradient(90deg,#ff00000f,#00ff0005,#0000ff0f) 0 0/6px 100%;width:100%;height:100%;position:absolute;top:0;left:0}.scanlines:after{content:" ";opacity:0;z-index:11;pointer-events:none;background:#1210101a;display:block;position:absolute;inset:0}.menu-overlay{background:var(--bg-panel);-webkit-backdrop-filter:blur(12px);z-index:20;text-align:center;box-sizing:border-box;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:30px;display:flex;position:absolute;top:0;left:0}.menu-overlay.start-menu-overlay{-webkit-backdrop-filter:blur(2px);background:#0a0b0e59}.menu-card{border:1px solid var(--border-glow);width:100%;max-width:320px;box-shadow:0 8px 32px #0000005e;box-shadow:var(--glow-blue);background:#1e243066;border-radius:16px;flex-direction:column;align-items:center;padding:24px;display:flex}.menu-subtitle{font-family:var(--font-hud);color:var(--text-secondary);letter-spacing:3px;text-transform:uppercase;margin-bottom:25px;font-size:.85rem}.menu-description{color:var(--text-secondary);margin-bottom:25px;font-size:.9rem;line-height:1.4}.btn-premium{width:100%;font-family:var(--font-hud);color:#fff;background:linear-gradient(135deg, var(--neon-orange), #b34a00);box-shadow:var(--glow-orange);cursor:pointer;text-transform:uppercase;letter-spacing:1px;border:none;border-radius:8px;justify-content:center;align-items:center;gap:10px;padding:14px 28px;font-size:1rem;font-weight:700;transition:all .2s;display:flex}.btn-premium:active{transform:scale(.97);box-shadow:0 0 4px #ff6a0066}.btn-secondary{width:100%;font-family:var(--font-hud);color:var(--neon-blue);border:1px solid var(--neon-blue);cursor:pointer;text-transform:uppercase;letter-spacing:1px;background:0 0;border-radius:8px;margin-top:12px;padding:12px 24px;font-size:.85rem;transition:all .2s;box-shadow:0 0 5px #00e5ff33}.btn-secondary:active{box-shadow:var(--glow-blue);background:#00e5ff1a}.hud-container{top:env(safe-area-inset-top,16px);box-sizing:border-box;z-index:15;pointer-events:none;justify-content:space-between;width:100%;padding:10px 20px;display:flex;position:absolute;left:0}.hud-item{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0a0b0eb3;border:1px solid #00e5ff33;border-radius:8px;flex-direction:column;padding:8px 12px;display:flex}.hud-label{color:var(--text-secondary);font-size:.6rem;font-family:var(--font-hud);letter-spacing:1px;text-transform:uppercase;margin-bottom:2px}.hud-value{font-size:1.1rem;font-weight:800}.fuel-bar-container{background:#ffffff1a;border:1px solid #00e5ff1a;border-radius:4px;width:90px;height:8px;margin-top:4px;overflow:hidden}.fuel-bar-fill{background:linear-gradient(90deg, var(--neon-red), var(--neon-orange));height:100%;box-shadow:0 0 8px var(--neon-orange);transition:width .1s}.fuel-bar-fill.normal{background:linear-gradient(90deg, var(--neon-blue), var(--neon-green));box-shadow:0 0 8px var(--neon-blue)}.virtual-controls-container{bottom:env(safe-area-inset-bottom,20px);box-sizing:border-box;z-index:15;pointer-events:none;justify-content:space-between;align-items:center;width:100%;padding:0 20px 10px;display:flex;position:absolute;left:0}.dpad,.action-buttons{pointer-events:auto;gap:15px;display:flex}.dpad{align-items:center}.btn-control{cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;background:0 0;border:none;outline:none;width:72px;height:72px;padding:0;transition:transform 80ms,filter 80ms}.btn-arcade{image-rendering:pixelated;filter:drop-shadow(0 3px 4px #0000008c);background-position:50%;background-repeat:no-repeat;background-size:contain}.btn-arcade:active{filter:drop-shadow(0 1px 2px #00000080)brightness(1.15);transform:translateY(2px)scale(.94)}#btn-left{background-image:url(/btn_left.webp)}#btn-right{background-image:url(/btn_right.webp)}#btn-duck{background-image:url(/btn_duck.webp)}#btn-jump{background-image:url(/btn_jump.webp)}.sound-toggle{top:calc(env(safe-area-inset-top,16px) + 65px);z-index:15;cursor:pointer;pointer-events:auto;width:38px;height:38px;color:var(--neon-blue);background:#0a0b0eb3;border:1px solid #00e5ff33;border-radius:50%;justify-content:center;align-items:center;font-size:1.1rem;display:flex;position:absolute;right:20px}.sound-toggle:active{box-shadow:var(--glow-blue);background:#00e5ff1a}.how-to-play-card{border-top:1px dashed #ffffff26;flex-direction:column;gap:8px;width:100%;margin-top:15px;padding-top:15px;display:flex}.instruction-row{color:var(--text-secondary);text-align:left;align-items:center;gap:10px;font-size:.75rem;display:flex}.key-badge{font-family:var(--font-hud);color:#fff;text-align:center;background:#ffffff1a;border:1px solid #fff3;border-radius:4px;min-width:38px;padding:2px 6px;font-size:.65rem}.nitro-active-overlay{border:4px solid var(--neon-orange);pointer-events:none;z-index:12;width:100%;height:100%;animation:.1s infinite engine-vibration;position:absolute;top:0;left:0;box-shadow:inset 0 0 40px #ff6a004d}.boss-active-overlay{border:4px solid var(--neon-red);pointer-events:none;z-index:12;width:100%;height:100%;animation:.2s infinite engine-vibration;position:absolute;top:0;left:0;box-shadow:inset 0 0 40px #ff00554d}.boss-hp-bar{top:calc(env(safe-area-inset-top,16px) + 60px);border:1px solid var(--neon-red);z-index:15;background:#000c;border-radius:7px;flex-direction:column;width:90%;height:14px;display:flex;position:absolute;left:5%;overflow:hidden}.boss-hp-fill{height:100%;box-shadow:0 0 10px var(--neon-red);background:linear-gradient(90deg,red,#f50);transition:width .2s ease-out}