:root{--bg:#050711;--surface:#0c1020;--text:#f5f7ff;--muted:#9ca6c2;--line:#202943;--accent:#72d9ff;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 75% 8%,#202b59,transparent 28%),#050711;color:var(--text);font-family:Arial,sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}.container{width:min(var(--max),calc(100% - 40px));margin:auto}
header{position:sticky;top:0;z-index:10;background:#050711dd;backdrop-filter:blur(15px);border-bottom:1px solid #ffffff12}.nav{height:74px;display:flex;align-items:center;justify-content:space-between}.logo{font-weight:900;font-size:21px}.logo span{color:var(--accent)}nav{display:flex;gap:24px;color:var(--muted);font-size:14px}nav a:hover,nav a.active{color:white}
.hero{padding:100px 0 80px;display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.kicker{font-size:12px;text-transform:uppercase;letter-spacing:.2em;color:var(--accent);font-weight:800}
h1{font-size:clamp(52px,8vw,100px);line-height:.9;letter-spacing:-.06em;margin:18px 0 28px}h2{font-size:43px;line-height:1.05;letter-spacing:-.04em;margin:0 0 20px}h3{margin:0 0 7px}.lead{font-size:19px;color:var(--muted);max-width:620px}
.buttons{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}.btn{padding:13px 20px;border-radius:999px;background:var(--accent);color:#061018;font-weight:800}.btn.alt{background:transparent;color:white;border:1px solid var(--line)}
.space{height:460px;border-radius:30px;border:1px solid var(--line);position:relative;overflow:hidden;background:radial-gradient(circle at 20% 30%,white 0 1px,transparent 2px),radial-gradient(circle at 80% 70%,white 0 1px,transparent 2px),#070a16}.orbit{position:absolute;border:1px solid #ffffff25;border-radius:50%;width:350px;height:350px;left:50%;top:50%;transform:translate(-50%,-50%)}.sun{width:130px;height:130px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#fff6aa,#ffc233 35%,#ff6d22 75%);box-shadow:0 0 70px #ff9d2e99;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.planet{width:26px;height:26px;border-radius:50%;background:#72d9ff;position:absolute;left:calc(50% + 160px);top:calc(50% - 13px)}
.section{padding:82px 0}.altbg{background:#080b17;border-block:1px solid #ffffff08}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px}.card p,.muted{color:var(--muted)}.num{font-size:12px;color:var(--accent);font-weight:800;margin-bottom:35px}
.pagehead{padding:80px 0 50px}.pagehead p{font-size:18px;color:var(--muted);max-width:720px}.planet-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.planet-card{padding:23px;border:1px solid var(--line);border-radius:18px;background:var(--surface)}.planet-dot{width:52px;height:52px;border-radius:50%;margin-bottom:22px;background:linear-gradient(135deg,#777,#ddd)}
table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line)}th,td{text-align:left;padding:15px;border-bottom:1px solid var(--line)}th{color:var(--accent);font-size:13px}
footer{padding:45px 0;border-top:1px solid var(--line);margin-top:50px}.footer{display:flex;justify-content:space-between;align-items:center;gap:20px}.social{display:flex;gap:18px;color:var(--muted)}
@media(max-width:850px){nav{gap:11px;font-size:12px}.hero{grid-template-columns:1fr;padding-top:65px}.space{height:340px}.grid,.planet-grid{grid-template-columns:1fr 1fr}.footer{flex-direction:column;align-items:flex-start}h1{font-size:62px}}@media(max-width:520px){.grid,.planet-grid{grid-template-columns:1fr}}