:root{--primary-color: #00d2ff;--secondary-color: #3a7bd5;--bg-overlay: rgba(0, 0, 0, .7);--card-bg: rgba(255, 255, 255, .1);--text-color: #ffffff;--card-hover-bg: rgba(255, 255, 255, .2)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:"Exo 2",sans-serif;color:var(--text-color);min-height:100vh;background-image:url(./assets/space-bg.jpg);background-size:cover;background-position:center;background-attachment:fixed;overflow-x:hidden}.background-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:var(--bg-overlay);z-index:-1}.container{max-width:1200px;margin:0 auto;padding:40px 20px}header{text-align:center;margin-bottom:40px;animation:fadeInDown 1s ease-out}header h1{font-size:3rem;margin-bottom:10px;text-transform:uppercase;letter-spacing:2px;background:linear-gradient(to right,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 2px 10px rgba(0,210,255,.3)}header p{font-size:1.2rem;color:#ccc}.filter-nav{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:40px;animation:fadeIn 1.5s ease-out}.filter-btn{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color);padding:8px 20px;border-radius:25px;cursor:pointer;font-family:"Exo 2",sans-serif;font-weight:700;transition:all .3s ease;text-transform:uppercase;font-size:.9rem}.filter-btn:hover,.filter-btn.active{background-color:var(--primary-color);color:#000;box-shadow:0 0 15px #00d2ff80}.moon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;animation:fadeInUp 1s ease-out}.moon-card{background-color:var(--card-bg);border-radius:15px;padding:25px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);transition:transform .3s ease,box-shadow .3s ease,background-color .3s;display:flex;flex-direction:column}.moon-card:hover{transform:translateY(-10px);box-shadow:0 10px 20px #00000080;background-color:var(--card-hover-bg);border-color:var(--primary-color)}.moon-name{font-size:1.8rem;margin-bottom:5px;color:var(--primary-color)}.planet-name{font-size:.9rem;color:#aaa;margin-bottom:15px;text-transform:uppercase;letter-spacing:1px;font-weight:700}.moon-details{margin-top:auto}.moon-info{display:flex;justify-content:space-between;margin-bottom:8px;font-size:.95rem;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:4px}.moon-info span:first-child{color:#ccc}.moon-desc{margin-top:15px;font-size:.9rem;line-height:1.5;color:#ddd}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#0f0f1a}::-webkit-scrollbar-thumb{background:#3a7bd5;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:#00d2ff}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){header h1{font-size:2rem}.container{padding:20px}}