:root{
  --bg:#0b2447;          /* marine blue */
  --panel:#0f2e5a;       /* darker marine */
  --text:#e6eefc;
  --muted:#9fb6d9;
  --accent:#ffd75e;      /* soft yellow */
  --accent-hover:#ffcd2e;
  --brand:#cfe4ff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}
a{color:inherit}
.container{max-width:1100px;margin:0 auto;padding:24px}
.header{display:flex;justify-content:space-between;align-items:center;padding:16px 0}
.brand{font-weight:800;letter-spacing:.3px;display:flex;align-items:baseline;gap:.5rem}
.brand .terra{font-size:42px;color:#fff}
.brand .nova{font-size:42px;color:var(--brand)}
.brand .insights{font-size:18px;color:var(--muted);font-weight:600;margin-left:.4rem}
.lang{display:flex;gap:12px}
.lang a{text-decoration:none;color:var(--muted);font-weight:700;opacity:.8}
.lang a.active{color:#fff;opacity:1;border-bottom:2px solid var(--accent)}
.hero{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));border:1px solid rgba(255,255,255,.06);border-radius:20px;padding:28px;margin-top:6px}
.kicker{color:#8fd3ff;font-weight:800;letter-spacing:.12em;font-size:12px}
h1{font-size:36px;margin:8px 0 4px}
.subtitle{color:var(--muted);max-width:800px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.card{background:var(--panel);border-radius:16px;padding:18px;border:1px solid rgba(255,255,255,.06)}
.card h3{margin:0 0 6px;font-size:16px;color:#fff}
.card .price{font-size:18px;color:#cfe4ff;font-weight:700;margin-bottom:10px}
.button{display:inline-block;background:var(--accent);color:#112; font-weight:800;padding:12px 16px;border-radius:10px;text-decoration:none;border:2px solid rgba(0,0,0,.08)}
.button:hover{background:var(--accent-hover)}
.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.badge{font-weight:700;color:#cfe4ff;margin-bottom:4px;font-size:12px;letter-spacing:.08em}
.how{margin-top:18px;color:var(--muted)}
.faq{margin-top:18px}
.faq details{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:14px;margin:10px 0;padding:12px}
.faq summary{font-weight:700;cursor:pointer}
.footer{opacity:.8;color:var(--muted);font-size:13px;margin-top:30px}
@media (max-width:900px){.grid,.features{grid-template-columns:1fr}.brand .terra,.brand .nova{font-size:34px}}