@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--midnight:#0f1b3d;--navy:#1a2c5b;--silver:#c0c0c0;--ice:#e8edf5;--accent:#4a7dff;--dim:#8090b0;--white:#f8f9fc}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;color:#1a1a2e;background:var(--white);line-height:1.7}
h1,h2,h3,h4{font-family:'Syne',sans-serif;font-weight:700}
a{text-decoration:none;color:inherit}

.orbit-header{position:sticky;top:0;z-index:100;background:var(--midnight);display:flex;align-items:center;justify-content:space-between;padding:0 2rem;height:60px}
.orbit-logo{font-family:'Syne',sans-serif;color:var(--silver);font-size:1.3rem;font-weight:800;display:flex;align-items:center;gap:.5rem}
.orbit-logo svg{width:28px;height:28px}
.orbit-nav{list-style:none;display:flex;gap:1.3rem}
.orbit-nav a{color:var(--dim);font-size:.9rem;transition:color .2s}
.orbit-nav a:hover{color:var(--accent)}
.orbit-btn{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:4px}
.orbit-btn span{width:24px;height:3px;background:var(--silver);border-radius:2px}

@media(max-width:768px){
.orbit-nav{display:none;position:absolute;top:60px;left:0;right:0;background:var(--midnight);flex-direction:column;padding:1rem 2rem;gap:.6rem}
.orbit-nav.revealed{display:flex}
.orbit-btn{display:flex}
}

.cosmos-hero{background:radial-gradient(circle at 30% 50%,var(--navy),var(--midnight));color:#fff;padding:5.5rem 2rem 5rem;text-align:center}
.cosmos-hero h1{font-size:clamp(2rem,5vw,3.2rem);color:var(--accent);margin-bottom:1rem}
.cosmos-hero p{max-width:650px;margin:0 auto 2rem;color:var(--dim);font-size:1.05rem}
.silver-btn{display:inline-block;padding:.85rem 2.4rem;background:var(--silver);color:var(--midnight);font-family:'Syne',sans-serif;font-weight:700;font-size:1rem;border-radius:8px;transition:background .2s}
.silver-btn:hover{background:var(--accent);color:#fff}

.orbit-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;padding:4rem 2rem;max-width:1100px;margin:0 auto}
.orbit-card{background:var(--ice);border-radius:14px;padding:2rem;text-align:center}
.orbit-card .oc-icon{font-size:2.2rem;margin-bottom:.6rem}
.orbit-card h3{color:var(--midnight);margin-bottom:.4rem;font-size:1.15rem}

.game-orbit{background:var(--midnight);padding:4rem 2rem;text-align:center}
.game-orbit h2{color:var(--silver);margin-bottom:1.5rem;font-size:1.8rem}
.go-frame{max-width:830px;margin:0 auto;aspect-ratio:4/3;border-radius:10px;overflow:hidden;border:2px solid var(--accent);box-shadow:0 4px 24px rgba(74,125,255,.15)}
.go-frame iframe{width:100%;height:100%;border:none}

.orbit-story{padding:4rem 2rem;max-width:900px;margin:0 auto}
.orbit-story h2{color:var(--midnight);margin-bottom:1rem;font-size:1.6rem}
.orbit-story p{margin-bottom:1.1rem;font-size:1.02rem}

.lunar-features{background:var(--ice);padding:4rem 2rem}
.lunar-features h2{text-align:center;color:var(--midnight);margin-bottom:2rem;font-size:1.6rem}
.lf-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;max-width:1100px;margin:0 auto}
.lf-card{background:#fff;padding:1.6rem;border-radius:10px;box-shadow:0 2px 10px rgba(15,27,61,.06)}
.lf-card h3{color:var(--accent);margin-bottom:.4rem;font-size:1.05rem}
.lf-card p{font-size:.92rem;color:#555}

.orbit-cta{background:linear-gradient(135deg,var(--accent),var(--navy));text-align:center;padding:3rem 2rem;color:#fff}
.orbit-cta h2{margin-bottom:.5rem;font-size:1.6rem}
.orbit-cta a{display:inline-block;margin-top:1rem;padding:.75rem 2rem;background:#fff;color:var(--accent);border-radius:8px;font-family:'Syne',sans-serif;font-weight:700}

footer{background:var(--midnight);color:var(--dim);text-align:center;padding:1.8rem;font-size:.85rem}
footer a{color:var(--accent);margin:0 .4rem}

.doc-page{max-width:900px;margin:0 auto;padding:3rem 2rem}
.doc-page h1{color:var(--midnight);margin-bottom:1.5rem;font-size:2rem}
.doc-page h2{color:var(--navy);margin:2rem 0 .7rem;font-size:1.3rem}
.doc-page p,.doc-page li{margin-bottom:.8rem;font-size:1rem}
.doc-page ul{padding-left:1.4rem}

.play-orbit{max-width:960px;margin:2rem auto;padding:0 2rem}
.play-orbit h1{color:var(--midnight);text-align:center;margin-bottom:1.2rem}
.play-detail{text-align:center;color:#777;font-size:.93rem;margin-top:1.2rem}

.age-cosmos{position:fixed;inset:0;z-index:9999;background:rgba(15,27,61,.93);display:flex;align-items:center;justify-content:center}
.age-moon{background:#fff;border-radius:14px;padding:2.5rem;text-align:center;max-width:410px;width:90%}
.age-moon h2{color:var(--midnight);font-family:'Syne',sans-serif;margin-bottom:.5rem}
.age-moon p{margin-bottom:1.5rem;color:#555;font-size:.95rem}
.age-duo{display:flex;gap:1rem;justify-content:center}
.age-duo button{padding:.65rem 1.8rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer}
.ad-yes{background:var(--accent);color:#fff}
.ad-no{background:#e0e0e0;color:#555}
.ad-yes:hover{background:var(--navy)}