@import"https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap";*{margin:0;padding:0;box-sizing:border-box}:root{--bg-dark: #0a0a1a;--bg-panel: #1a1a2e;--bg-card: #252542;--text-primary: #ffffff;--text-secondary: #8888aa;--accent-yellow: #ffd700;--accent-orange: #ff8c00;--accent-red: #ff4444;--accent-green: #44ff44;--accent-blue: #4488ff;--accent-purple: #aa44ff;--earth-primary: #4a90d9;--earth-secondary: #2d5a8a;--earth-land: #3d8b40;--mars-primary: #c1440e;--mars-secondary: #8b3010;--mercury-primary: #8c8c8c;--mercury-secondary: #5a5a5a}body{font-family:"Press Start 2P",cursive;background-color:var(--bg-dark);color:var(--text-primary);min-height:100vh;overflow:hidden;image-rendering:pixelated}.screen{position:fixed;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center}.screen.hidden{display:none!important}.stars{position:absolute;width:100%;height:100%;background-image:radial-gradient(2px 2px at 20px 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#000}#game-screen{display:grid;grid-template-columns:1fr;grid-template-rows:auto 1fr;background:linear-gradient(180deg,#0a0a1a,#0f0f2a,#1a1a3a)}#game-screen:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(2px 2px at 20px 30px,rgba(255,255,255,.5),transparent),radial-gradient(2px 2px at 40px 70px,rgba(255,255,255,.3),transparent),radial-gradient(1px 1px at 90px 40px,rgba(255,255,255,.4),transparent),radial-gradient(2px 2px at 130px 80px,rgba(255,255,255,.5),transparent),radial-gradient(1px 1px at 160px 120px,rgba(255,255,255,.3),transparent);background-repeat:repeat;background-size:200px 150px;pointer-events:none;z-index:0}.game-header{grid-column:1 / -1;display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#1a1a2ee6;border-bottom:4px solid var(--accent-yellow);z-index:10}.energy-display{display:flex;align-items:center;gap:.5rem}.energy-icon{font-size:1.5rem;animation:zap .5s ease-in-out 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var(--accent-yellow)}50%{box-shadow:0 0 20px var(--accent-yellow)}}#challenge-text{font-size:.8rem;display:block;margin-bottom:.5rem}.challenge-timer{height:8px;background:var(--bg-dark);margin:.5rem 0;border:2px solid #fff}.challenge-timer:after{content:"";display:block;height:100%;background:var(--accent-yellow);width:var(--timer-width, 100%);transition:width .1s linear}#challenge-progress{font-size:.6rem}.travel-button{margin-top:1.5rem;background:linear-gradient(180deg,var(--accent-purple),#6622aa);box-shadow:0 4px #41a,0 6px #000;animation:travelPulse 1.5s ease-in-out infinite;display:flex;flex-direction:column;align-items:center;gap:.3rem}.travel-button:hover{background:linear-gradient(180deg,#cc66ff,var(--accent-purple));transform:translateY(-2px)}.travel-button.hidden{display:none!important}.travel-cost{font-size:.5rem;opacity:.8}@keyframes travelPulse{0%,to{box-shadow:0 4px #41a,0 6px #000,0 0 15px var(--accent-purple)}50%{box-shadow:0 4px #41a,0 6px #000,0 0 25px var(--accent-purple)}}.toggle-btn{position:absolute;bottom:80px;left:20px;z-index:50;font-size:.7rem;padding:.8rem 1.5rem}.bottom-stats{position:absolute;bottom:20px;left:50%;transform:translate(-50%);display:flex;gap:2rem;z-index:50}.bottom-stat{background:#1a1a2ee6;padding:.8rem 1.5rem;border:2px solid var(--accent-yellow);font-size:.8rem;color:var(--accent-yellow)}.bottom-stat .stat-icon{margin-right:.3rem}.upgrade-panel{position:fixed;left:0;top:0;height:100vh;width:350px;background:#1a1a2efa;border-right:4px solid var(--accent-blue);display:flex;flex-direction:column;z-index:100;overflow:hidden;transition:transform .3s ease}.upgrade-panel.hidden{transform:translate(-100%)}.upgrade-panel .close-btn{position:absolute;top:10px;right:10px;background:var(--accent-red);color:#fff;border:none;width:30px;height:30px;font-size:1rem;cursor:pointer;z-index:101}.panel-tabs{display:flex;border-bottom:2px solid var(--bg-card)}.tab-button{flex:1;font-family:"Press Start 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.expensive{color:var(--accent-red)}.stats-list{display:flex;flex-direction:column;gap:.75rem}.stat-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background:var(--bg-card)}.stat-label{font-size:.5rem;color:var(--text-secondary)}.stat-value{font-size:.6rem;color:var(--accent-yellow)}.achievements-list{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem}.achievement-card{background:var(--bg-card);padding:.75rem;text-align:center;border:2px solid var(--bg-dark);opacity:.5}.achievement-card.unlocked{opacity:1;border-color:var(--accent-yellow)}.achievement-card .icon{font-size:1.5rem;margin-bottom:.25rem}.achievement-card .name{font-size:.4rem;color:var(--text-secondary)}.achievement-card.unlocked .name{color:var(--text-primary)}.achievement-popup{position:fixed;bottom:20px;left:50%;transform:translate(-50%) translateY(100px);background:linear-gradient(90deg,var(--accent-yellow),var(--accent-orange));padding:1rem 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h1{font-size:2rem;color:var(--accent-yellow);margin-bottom:1rem;animation:rainbow 2s linear infinite}@keyframes rainbow{0%{color:var(--accent-yellow)}25%{color:var(--accent-orange)}50%{color:var(--accent-red)}75%{color:var(--accent-purple)}to{color:var(--accent-yellow)}}.victory-content h2{font-size:1rem;color:var(--text-primary);margin-bottom:2rem}.final-stats{margin:2rem 0}.final-stats p{font-size:.7rem;color:var(--text-secondary);margin:.5rem 0}.final-stats span{color:var(--accent-yellow)}.planet-pulse{animation:planetPulse .1s ease-out}@keyframes planetPulse{0%{filter:brightness(1)}50%{filter:brightness(1.3)}to{filter:brightness(1)}}.screen-shake{animation:shake .3s ease-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-dark)}::-webkit-scrollbar-thumb{background:var(--bg-card);border:2px solid var(--bg-dark)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media(max-width:900px){#game-screen{grid-template-columns:1fr;grid-template-rows:auto 1fr auto}.upgrade-panel{max-height:40vh;border-left:none;border-top:4px solid var(--accent-blue)}.game-title{font-size:1.5rem}}.bottom-buttons{position:absolute;bottom:20px;left:50%;transform:translate(-50%);z-index:50}.planets-btn{font-size:.8rem;padding:1rem 2rem;background:linear-gradient(180deg,var(--accent-purple),#6622aa);box-shadow:0 4px #41a,0 6px #000}.bottom-buttons{display:flex;gap:1rem}#planets-screen{background:linear-gradient(180deg,#0a0a1a,#1a1a3a);z-index:100}.planets-content{text-align:center;padding:2rem;max-width:900px}.planets-title{font-size:2rem;color:var(--accent-yellow);margin-bottom:2rem}.planets-grid{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;margin-bottom:2rem}.planet-card{background:var(--bg-panel);padding:1.5rem;border:3px solid var(--accent-green);width:200px;text-align:center}.planet-card.locked{border-color:var(--text-secondary);opacity:.8}.planet-card.current{border-color:var(--accent-yellow);box-shadow:0 0 20px var(--accent-yellow)}.planet-preview{width:80px;height:80px;margin:0 auto 1rem;border-radius:50%}.earth-preview{background:radial-gradient(circle at 30% 30%,var(--earth-primary),var(--earth-secondary));box-shadow:inset -10px -10px 20px #0000004d}.mars-preview{background:radial-gradient(circle at 30% 30%,var(--mars-primary),var(--mars-secondary));box-shadow:inset -10px -10px 20px #0000004d}.mercury-preview{background:radial-gradient(circle at 30% 30%,var(--mercury-primary),var(--mercury-secondary));box-shadow:inset -10px -10px 20px #0000004d}.planet-card h3{font-size:.8rem;color:var(--text-primary);margin-bottom:.5rem}.planet-bonus{font-size:.5rem;color:var(--accent-green);margin-bottom:.3rem}.planet-cost{font-size:.5rem;color:var(--accent-orange);margin-bottom:.5rem}.planet-status{font-size:.5rem;color:var(--accent-green);margin-bottom:.5rem}.planet-card button{margin-top:.5rem}.planet-card.locked .planet-buy-btn{background:var(--accent-orange);box-shadow:0 4px #a50,0 6px #000}.planet-card .planet-travel-btn{display:none;background:linear-gradient(180deg,#c1440e,#8b3010);box-shadow:0 4px #5a2008,0 6px #000;margin-top:.5rem}.planet-card:not(.locked) .planet-travel-btn{display:inline-block}.planet-card:not(.locked) .planet-buy-btn{display:none}.planet-card:not(.locked) .planet-cost{display:none}.ad-container{width:100%;max-width:728px;margin:.5rem auto;padding:.25rem;background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:4px;min-height:50px;text-align:center}