.solar-system-hero{background:linear-gradient(#0f172a 0%,#1e1b4b 100%);padding:120px 20px 80px;position:relative;overflow:hidden}.stars{opacity:.6;background-image:radial-gradient(2px 2px at 20% 30%,#fff,#0000),radial-gradient(2px 2px at 60% 70%,#fff,#0000),radial-gradient(1px 1px,#fff,#0000),radial-gradient(1px 1px at 80% 10%,#fff,#0000),radial-gradient(2px 2px at 90% 60%,#fff,#0000),radial-gradient(1px 1px at 33% 80%,#fff,#0000),radial-gradient(1px 1px at 15% 90%,#fff,#0000);background-size:200% 200%;width:100%;height:100%;animation:8s ease-in-out infinite twinkle;position:absolute;top:0;left:0}@keyframes twinkle{0%,to{opacity:.6}50%{opacity:1}}.hero-title{text-align:center;background:linear-gradient(135deg,#60a5fa 0%,#a78bfa 50%,#f472b6 100%);-webkit-text-fill-color:transparent;z-index:1;-webkit-background-clip:text;background-clip:text;margin-bottom:20px;font-size:3.5rem;font-weight:800;animation:.8s ease-out fadeInUp;position:relative}.hero-subtitle{text-align:center;color:var(--text-muted);z-index:1;max-width:600px;margin:0 auto;font-size:1.25rem;animation:.8s ease-out .2s backwards fadeInUp;position:relative}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.solar-system-content{background:var(--bg-dark);padding:60px 20px}.intro-section{text-align:center;max-width:800px;margin:0 auto 60px;animation:1s ease-out fadeInUp}.intro-section h2{color:var(--text-main);margin-bottom:20px;font-size:2.5rem;font-weight:700}.intro-section p{color:var(--text-muted);font-size:1.125rem;line-height:1.8}.planets-grid{gap:40px;max-width:1200px;margin:0 auto;display:grid}.planet-card{background:var(--bg-card);border:1px solid #3b82f61a;border-radius:20px;grid-template-columns:300px 1fr;gap:30px;padding:30px;transition:all .3s;animation:.6s ease-out backwards slideInLeft;display:grid;overflow:hidden}.planet-card:hover{border-color:#3b82f64d;transform:translateY(-5px);box-shadow:0 20px 40px #3b82f633}@keyframes slideInLeft{0%{opacity:0;transform:translate(-50px)}to{opacity:1;transform:translate(0)}}.planet-visual{justify-content:center;align-items:center;padding:20px;display:flex}.planet-sphere{border-radius:50%;width:200px;height:200px;animation:6s ease-in-out infinite float;position:relative;box-shadow:0 0 40px #0000004d,inset -20px -20px 40px #0000004d,0 0 60px #3b82f633}.planet-sphere:before{content:"";filter:blur(10px);background:radial-gradient(circle at 30% 30%,#fff6,#0000);border-radius:50%;width:40%;height:40%;position:absolute;top:10%;left:10%}.planet-shine{filter:blur(15px);background:radial-gradient(circle,#fff9,#0000);border-radius:50%;width:30%;height:30%;position:absolute;top:15%;left:15%}@keyframes float{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-10px)rotate(5deg)}}.planet-info{flex-direction:column;justify-content:center;gap:15px;display:flex}.planet-header{flex-wrap:wrap;align-items:center;gap:15px;display:flex}.planet-header h3{color:var(--text-main);margin:0;font-size:2rem;font-weight:700}.planet-type{color:var(--primary-blue);background:#3b82f633;border:1px solid #3b82f64d;border-radius:20px;padding:6px 12px;font-size:.875rem;font-weight:600;display:inline-block}.planet-size{color:var(--text-muted);align-items:center;gap:8px;font-size:.95rem;display:flex}.planet-size svg{color:var(--accent-cyan)}.planet-description{color:var(--text-muted);margin:0;font-size:1rem;line-height:1.7}.fun-fact{border-left:4px solid var(--accent-purple);background:linear-gradient(135deg,#8b5cf61a,#3b82f61a);border-radius:12px;gap:12px;margin-top:5px;padding:15px;display:flex}.fun-fact-icon{flex-shrink:0;font-size:1.5rem}.fun-fact strong{color:var(--primary-blue)}.fun-fact div{color:var(--text-muted);font-size:.95rem;line-height:1.6}.learning-section{text-align:center;background:linear-gradient(135deg,#3b82f61a,#8b5cf61a);border:1px solid #3b82f633;border-radius:24px;max-width:900px;margin:80px auto 0;padding:50px}.learning-section h2{color:var(--text-main);margin-bottom:20px;font-size:2.5rem;font-weight:700}.learning-section>p{color:var(--text-muted);margin-bottom:40px;font-size:1.125rem;line-height:1.8}.exploration-stats{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:30px;margin-top:40px;display:grid}.stat-card{background:var(--bg-card);border:1px solid #3b82f633;border-radius:16px;padding:30px;transition:all .3s}.stat-card:hover{border-color:var(--primary-blue);transform:translateY(-5px);box-shadow:0 10px 30px #3b82f64d}.stat-number{background:linear-gradient(135deg,var(--primary-blue),var(--accent-purple));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:8px;font-size:3rem;font-weight:800}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;font-size:.95rem;font-weight:600}@media (max-width:968px){.planet-card{text-align:center;grid-template-columns:1fr}.planet-header,.planet-size{justify-content:center}.hero-title{font-size:2.5rem}}@media (max-width:640px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.planet-sphere{width:150px;height:150px}.planet-header h3{font-size:1.5rem}.intro-section h2,.learning-section h2{font-size:1.875rem}.stat-number{font-size:2rem}}