@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Orbitron:wght@500;700;900&display=swap";:root{--bg: #0A0F1F;--surface: #141B3A;--primary: #EAB308;--primary-dark: #CA8A04;--accent: #06B6D4;--text: #FEFCE8;--text-muted: #FDE68A;--border: #1E2547;--success: #10B981;--warning: #EAB308;--danger: #EF4444;--radius: 4px;--shadow: 0 12px 36px rgba(0,0,0,.4), 0 0 28px #EAB30826}body{margin:0;padding:0;background:linear-gradient(135deg,#0a0f1f,#141b3a),repeating-linear-gradient(0deg,transparent,transparent 39px,#EAB30811 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,#06B6D408 40px),var(--bg);color:var(--text);font-family:JetBrains Mono,SF Mono,Consolas,monospace;display:flex;justify-content:center;align-items:center;min-height:100vh;overflow:hidden;position:relative}.app-container{width:100vw;height:100vh;display:flex;justify-content:center;align-items:center;position:relative;overflow:hidden}.cloud-save-toast{position:absolute;top:20px;background:rgba(var(--surface),.9);padding:10px 20px;border-radius:var(--radius);box-shadow:var(--shadow);color:var(--text-muted);font-size:.9em;z-index:1000;display:flex;align-items:center;gap:8px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.loading-screen{display:flex;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;background:var(--bg);color:var(--text);font-family:Orbitron,monospace;font-size:1.5em;text-shadow:0 0 10px var(--accent)}.loading-screen .spinner{animation:spin 1.5s linear infinite;margin-bottom:20px;color:var(--accent)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.start-screen,.game-over-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(var(--surface),.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:40px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;width:80%;max-width:600px;position:relative;z-index:10}.game-title{font-family:Orbitron,monospace;font-size:3em;color:var(--primary);text-shadow:0 0 20px var(--primary),0 0 40px var(--accent);margin-bottom:20px;letter-spacing:2px}.high-score-display{font-size:1.5em;color:var(--text-muted);margin-bottom:30px;display:flex;align-items:center;gap:10px}.high-score-display .icon{color:var(--primary)}.start-car,.player-car{width:180px;height:auto;margin-bottom:30px;filter:drop-shadow(0 0 15px var(--accent)) drop-shadow(0 0 8px var(--accent));animation:car-float 3s ease-in-out infinite}.start-car-fallback,.player-car-fallback{font-size:100px;margin-bottom:30px;animation:car-float 3s ease-in-out infinite}@keyframes car-float{0%{transform:translateY(0)}50%{transform:translateY(-10px)}to{transform:translateY(0)}}.action-button{background:var(--primary);color:var(--bg);border:none;padding:15px 30px;font-family:Orbitron,monospace;font-size:1.2em;border-radius:var(--radius);cursor:pointer;box-shadow:0 0 24px var(--primary);transition:all .3s ease;display:flex;align-items:center;gap:10px}.action-button:hover{background:var(--primary-dark);box-shadow:0 0 30px var(--primary)}.action-button .icon{color:var(--bg)}.loading-question{margin-top:20px;color:var(--text-muted);display:flex;align-items:center;gap:8px}.loading-question .spinner{animation:spin 1s linear infinite;color:var(--accent)}.game-screen{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:space-between;position:relative;overflow:hidden}.track-background{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center bottom;animation:track-scroll linear infinite;animation-duration:var(--track-speed, 10s);z-index:1;filter:brightness(.8)}.track-background-fallback{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to bottom,#101530,#202540);background-size:100% 200%;animation:track-scroll-fallback linear infinite;animation-duration:var(--track-speed, 10s);z-index:1;font-size:200px;display:flex;justify-content:center;align-items:center;opacity:.2}@keyframes track-scroll{0%{background-position:center bottom}to{background-position:center top}}@keyframes track-scroll-fallback{0%{background-position:0% 0%}to{background-position:0% 100%}}.game-screen.correct-flash{animation:correct-flash .2s ease-out}.game-screen.wrong-flash{animation:wrong-flash .2s ease-out}@keyframes correct-flash{0%{filter:brightness(1)}50%{filter:brightness(1.5) drop-shadow(0 0 10px var(--success))}to{filter:brightness(1)}}@keyframes wrong-flash{0%{filter:brightness(1)}50%{filter:brightness(.5) drop-shadow(0 0 10px var(--danger))}to{filter:brightness(1)}}.hud{position:absolute;top:20px;left:50%;transform:translate(-50%);display:flex;gap:30px;background:rgba(var(--surface),.7);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:10px 25px;border-radius:var(--radius);box-shadow:var(--shadow);z-index:50;border:1px solid var(--border)}.hud-item{display:flex;flex-direction:column;align-items:center}.hud-item .label{font-size:.8em;color:var(--text-muted);text-transform:uppercase}.hud-item .value{font-family:Orbitron,monospace;font-size:1.5em;color:var(--primary);text-shadow:0 0 10px var(--primary)}.hud-item.lives{flex-direction:row;gap:5px}.hud-item.lives .label{margin-right:5px}.lives-icons{display:flex;gap:5px}.life-icon{color:var(--danger);width:24px;height:24px;filter:drop-shadow(0 0 5px var(--danger))}.car-container{position:absolute;bottom:10%;left:50%;transform:translate(-50%);z-index:10;display:flex;flex-direction:column;align-items:center}.player-car{width:150px;height:auto;filter:drop-shadow(0 0 15px var(--accent)) drop-shadow(0 0 8px var(--accent))}.boost-effect,.brake-effect{position:absolute;bottom:-30px;width:100px;height:auto;opacity:.8;filter:drop-shadow(0 0 10px var(--accent))}.boost-effect{bottom:-50px;width:120px;filter:drop-shadow(0 0 10px var(--accent))}.brake-effect{bottom:-50px;width:120px;filter:drop-shadow(0 0 10px var(--danger))}.question-panel{position:absolute;bottom:20px;width:90%;max-width:700px;background:rgba(var(--surface),.9);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);padding:25px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;z-index:50;border:1px solid var(--border)}.question-text{font-size:1.4em;margin-bottom:20px;color:var(--text);line-height:1.4;text-shadow:0 0 5px var(--accent)}.options-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.option-button{background:var(--surface);color:var(--text);border:1px solid var(--border);padding:15px 20px;font-family:JetBrains Mono,monospace;font-size:1.1em;border-radius:var(--radius);cursor:pointer;transition:all .2s ease;text-align:left;display:flex;align-items:center;gap:10px;box-shadow:0 0 10px #0003}.option-button:hover{background:var(--primary-dark);color:var(--bg);box-shadow:0 0 15px var(--primary);border-color:var(--primary)}.option-key{font-family:Orbitron,monospace;font-weight:700;color:var(--primary);min-width:20px;text-align:center;text-shadow:0 0 5px var(--primary)}.answer-feedback{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3em;font-family:Orbitron,monospace;opacity:0;pointer-events:none;z-index:100}.answer-feedback.correct{color:var(--success);text-shadow:0 0 20px var(--success)}.answer-feedback.wrong{color:var(--danger);text-shadow:0 0 20px var(--danger)}.feedback-icon{width:80px;height:80px}.feedback-icon.correct-icon{color:var(--success);filter:drop-shadow(0 0 10px var(--success))}.feedback-icon.wrong-icon{color:var(--danger);filter:drop-shadow(0 0 10px var(--danger))}.game-over-screen{background:rgba(var(--surface),.9);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border)}.game-over-title{font-family:Orbitron,monospace;font-size:3.5em;color:var(--danger);text-shadow:0 0 20px var(--danger),0 0 40px rgba(255,0,0,.5);margin-bottom:20px;letter-spacing:3px}.final-score{font-size:2em;color:var(--primary);margin-bottom:10px;text-shadow:0 0 10px var(--primary)}.new-best{font-family:Orbitron,monospace;font-size:2.2em;color:var(--accent);text-shadow:0 0 15px var(--accent),0 0 30px rgba(0,255,255,.5);margin-top:20px;margin-bottom:30px}@media (max-width: 768px){.game-title{font-size:2.2em}.high-score-display,.final-score{font-size:1.2em}.action-button{font-size:1em;padding:12px 20px}.player-car,.start-car{width:120px}.question-text{font-size:1.1em}.options-grid{grid-template-columns:1fr}.option-button{font-size:.9em;padding:10px 15px}.hud{gap:15px;padding:8px 15px}.hud-item .value{font-size:1.2em}.life-icon{width:20px;height:20px}.game-over-title{font-size:2.5em}.new-best{font-size:1.8em}}@media (max-width: 480px){.start-screen,.game-over-screen{padding:20px;width:95%}.game-title{font-size:1.8em}.player-car,.start-car{width:100px}.hud{flex-wrap:wrap;justify-content:center;gap:10px;padding:5px 10px}.question-panel{padding:15px}.question-text{font-size:1em}.option-button{font-size:.8em}.feedback-icon{width:60px;height:60px}}