:root{--space-black: #0a0a0a;--deep-space: #13123a;--cosmic-purple: #3a1f5d;--stellar-blue: #00d4ff;--nebula-pink: #ff61d8;--star-white: #ffffff;--glass-bg: rgba(19, 18, 58, .15);--glass-border: rgba(255, 255, 255, .08);--glow-shadow: 0 0 10px var(--stellar-blue), 0 0 20px var(--stellar-blue), 0 0 30px var(--stellar-blue);--nav-height: 60px;--controls-height: 70px;--footer-height: 35px;--info-panel-height: 280px;--info-panel-spacing: 65px;--total-top: calc(var(--nav-height) + var(--controls-height));--total-bottom: calc(var(--info-panel-height) + var(--footer-height) + var(--info-panel-spacing));--planet-viewer-min-height: 450px;--planet-viewer-max-height: 600px}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden}body{font-family:Raleway,sans-serif;color:var(--star-white);background:linear-gradient(to 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a:hover{background:#00d4ff1a;color:var(--stellar-blue);transform:translateY(-2px)}.nav-links a.active{background:#00d4ff1a;color:var(--stellar-blue)}.nav-links a i{font-size:1.1rem}.planet-controls{position:fixed;top:var(--nav-height);left:0;width:100%;height:var(--controls-height);padding:0 2rem;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:900;border-bottom:1px solid var(--glass-border);display:flex;justify-content:center;align-items:center;gap:2rem}.planet-selector,.view-controls{border:none;display:flex;gap:.75rem;flex-wrap:wrap;align-items:center}legend{font-family:Orbitron,sans-serif;color:var(--stellar-blue);font-size:.9rem;margin-bottom:.5rem}.cosmic-btn{padding:10px 20px;border:1px solid var(--glass-border);border-radius:25px;font-family:Orbitron,sans-serif;font-size:.9rem;cursor:pointer;transition:all .3s ease;background:#ffffff1a;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:var(--star-white);text-transform:uppercase;letter-spacing:.5px;min-width:auto}.cosmic-btn:hover{background:#00d4ff1a;transform:translateY(-2px);box-shadow:0 0 15px #00d4ff4d}.cosmic-btn.active{background:linear-gradient(45deg,#00d4ffcc,#ff61d8cc);border:none;color:var(--star-white);box-shadow:0 0 15px #00d4ff80}.universe-container{position:fixed;top:var(--total-top);left:0;width:100%;height:calc(100vh - var(--total-top) - var(--total-bottom));min-height:var(--planet-viewer-min-height);max-height:var(--planet-viewer-max-height);z-index:1;display:flex;justify-content:center;align-items:center;overflow:hidden;margin-bottom:var(--info-panel-spacing)}#universe{width:100%;height:100%;display:flex;justify-content:center;align-items:center}.spacer-divider{position:fixed;bottom:calc(var(--footer-height) + var(--info-panel-height));left:0;width:100%;height:20px;background:linear-gradient(to bottom,transparent,rgba(0,212,255,.1));z-index:850;margin-bottom:var(--info-panel-spacing)}.info-panel{position:fixed;bottom:calc(var(--footer-height) + var(--info-panel-spacing));left:0;width:100%;height:var(--info-panel-height);padding:1.25rem 2rem;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--glass-border);z-index:800;box-shadow:0 -8px 32px #0003}.info-content{max-width:1400px;margin:0 auto;height:100%;overflow:hidden}.celestial-name{font-family:Orbitron,sans-serif;font-size:1.3rem;margin-bottom:1rem;text-transform:uppercase;letter-spacing:1px;color:var(--stellar-blue);display:flex;align-items:center;gap:1rem}.info-grid{display:grid;grid-template-columns:40% 60%;gap:2rem;height:calc(100% - 2.5rem)}.data-table{width:100%;border-collapse:collapse}.data-table td{padding:.4rem 0;border-bottom:1px solid var(--glass-border);font-size:.9rem;line-height:1.4}.data-table td:first-child{font-family:Orbitron,sans-serif;color:var(--stellar-blue);width:35%;font-weight:500}.nasa-data{background:#13123a4d;padding:1.25rem;border-radius:15px;border:1px solid var(--glass-border);height:100%;box-shadow:0 4px 16px #0003;display:flex;flex-direction:column;min-height:0}.nasa-data h3{color:var(--stellar-blue);font-family:Orbitron,sans-serif;font-size:1rem;margin-bottom:.75rem;display:flex;align-items:center;gap:.75rem}.nasa-content{flex:1;overflow-y:auto;overflow-x:hidden;line-height:1.6;font-size:.9rem;padding-right:.75rem;color:#ffffffe6;padding-bottom:1rem;min-height:5}.nasa-content::-webkit-scrollbar{width:6px}.nasa-content::-webkit-scrollbar-track{background:#13123a4d;border-radius:3px}.nasa-content::-webkit-scrollbar-thumb{background:var(--stellar-blue);border-radius:3px}.glass-panel{position:fixed;bottom:0;left:0;width:100%;height:40px;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--glass-border);padding:0 2rem;z-index:900;display:flex;align-items:center}.footer-content{max-width:1400px;width:100%;margin:0 auto;display:flex;justify-content:center;align-items:center}.footer-section{font-size:.85rem;color:var(--star-white);opacity:.8}.footer-section strong{color:var(--stellar-blue);opacity:1}.footer-bottom{display:none}.footer-content,.footer-section{border:none;border-top:none}.loading-animation{text-align:center;padding:1rem;color:var(--stellar-blue);font-size:1rem;font-family:Orbitron,sans-serif}.loading-animation:after{content:"";animation:loading 1.5s infinite}@keyframes loading{25%{content:"."}50%{content:".."}75%{content:"..."}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes glowPulse{0%{box-shadow:0 0 15px #00d4ff80}50%{box-shadow:0 0 25px #00d4ffb3}to{box-shadow:0 0 15px #00d4ff80}}@media (max-width: 1200px){:root{--planet-viewer-min-height: 400px;--planet-viewer-max-height: 550px}.info-panel{padding:1.25rem 1.5rem}.info-grid{gap:1.5rem}.footer-content{padding:0 1.5rem}}@media (max-width: 992px){:root{--info-panel-height: 260px;--planet-viewer-min-height: 350px;--planet-viewer-max-height: 500px;--info-panel-spacing: 50px}.celestial-name{font-size:1.2rem}.nasa-data{padding:1rem}.info-grid{gap:1.5rem}}@media (max-width: 768px){:root{--controls-height: 85px;--info-panel-height: 280px;--planet-viewer-min-height: 300px;--planet-viewer-max-height: 400px;--info-panel-spacing: 40px}.planet-controls{padding:.75rem 1rem}.info-panel{padding:1rem}.info-grid{grid-template-columns:1fr;gap:1rem}.nasa-data{height:140px}.glass-panel{padding:.5rem 1rem}.footer-content{flex-direction:column;gap:.5rem;text-align:center;justify-content:center}.footer-section,.footer-bottom{justify-content:center}.footer-section p{font-size:.85rem}.copyright{font-size:.8rem}}@media (max-width: 480px){:root{--nav-height: 50px;--controls-height: 100px;--info-panel-height: 300px;--footer-height: 60px;--planet-viewer-min-height: 250px;--planet-viewer-max-height: 350px;--info-panel-spacing: 30px}.planet-controls{flex-direction:column;gap:.75rem;padding:.75rem}.planet-selector,.view-controls{width:100%;justify-content:center;gap:.5rem}.cosmic-btn{padding:8px 16px;font-size:.8rem}.celestial-name{font-size:1.1rem}.nasa-data{height:130px}}.mobile-nav-toggle{display:none;background:none;border:none;color:var(--stellar-blue);font-size:1.2rem;cursor:pointer;padding:.5rem}@media (max-width: 480px){.mobile-nav-toggle{display:block}.nav-links{display:none}.nav-links.active{display:flex;flex-direction:column;position:absolute;top:var(--nav-height);left:0;right:0;background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:1rem;gap:.5rem;border-bottom:1px solid var(--glass-border)}}.glow{text-shadow:var(--glow-shadow)}.fade-in{animation:fadeIn 1s ease-out}.text-glow{text-shadow:0 0 10px 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.8rem;font-size:.85rem;margin:.25rem}.moon-selector .cosmic-btn:hover{transform:translateY(-2px)}.moon-popup{position:fixed;top:0;left:0;width:100%;height:100%;background:#0a0a0acc;display:flex;justify-content:center;align-items:center;z-index:1100;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:fadeIn .3s ease-out;overflow:auto;padding:2rem}.moon-popup-content{width:90%;max-width:900px;max-height:80vh;overflow-y:auto;background:#13123acc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:15px;padding:2rem;box-shadow:0 0 30px #00d4ff33;animation:fadeIn .4s ease-out}.moon-popup-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;border-bottom:1px solid var(--glass-border);padding-bottom:1rem}.moon-popup-title{font-family:Orbitron,sans-serif;font-size:1.5rem;color:var(--stellar-blue);margin:0}.moon-popup-close{background:none;border:none;color:var(--star-white);font-size:1.5rem;cursor:pointer;width:40px;height:40px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#ffffff1a;transition:all .3s ease}.moon-popup-close:hover{background:#ff61d833;transform:rotate(90deg)}.moon-selector{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--glass-border)}.moon-info-container{padding:0 1rem}.moon-name{font-family:Orbitron,sans-serif;font-size:1.3rem;color:var(--stellar-blue);margin-bottom:1rem;text-align:center}.moon-info-grid{display:grid;grid-template-columns:45% 55%;gap:2rem}.moon-detail-info{background:#13123a4d;padding:1.25rem;border-radius:15px;border:1px solid var(--glass-border);box-shadow:0 4px 16px #0003}.moon-detail-info h3{color:var(--stellar-blue);font-family:Orbitron,sans-serif;font-size:1rem;margin-bottom:.75rem}@media (max-width: 768px){.moon-popup-content{padding:1.5rem;width:95%}.moon-info-grid{grid-template-columns:1fr;gap:1rem}.moon-popup-title{font-size:1.2rem}.moon-name{font-size:1.1rem}}@media (max-width: 480px){.moon-popup{padding:1rem}.moon-popup-content{padding:1rem;width:100%}.moon-selector{margin-bottom:1rem;padding-bottom:.5rem}.moon-selector .cosmic-btn{padding:.3rem .6rem;font-size:.8rem}}.moon-3d-container{width:200px;height:200px;margin:0 auto 1.5rem;position:relative;background:#13123a66;border-radius:50%;overflow:hidden;box-shadow:0 0 30px #00d4ff4d;border:1px solid var(--glass-border)}@media (max-width: 768px){.moon-3d-container{width:150px;height:150px;margin-bottom:1rem}}@media (max-width: 480px){.moon-3d-container{width:120px;height:120px}}.moon-3d-container{width:200px;height:200px;margin:0 auto 1.5rem;position:relative;background:#13123a66;border-radius:50%;overflow:hidden;box-shadow:0 0 30px #00d4ff4d;border:1px solid var(--glass-border);display:flex;justify-content:center;align-items:center}#moon-canvas{width:100%;height:100%;display:block}