body{margin:0;font-family:Segoe UI,sans-serif;background:#f4f6fb}header{background:#0d2f78;color:#fff;padding:18px 8%;display:flex;justify-content:space-between}nav a{margin-left:20px} .hero{background:#11398a;color:#fff;padding:50px 8%}.wrap{display:grid;grid-template-columns:280px 1fr;gap:25px;padding:30px 8%}aside,.card,.info{background:#fff;border-radius:12px;padding:20px;box-shadow:0 4px 15px rgba(0,0,0,.08)}iframe{width:100%;height:620px;border:0;border-radius:10px}.btn,button{background:#d4af37;color:#0d2f78;padding:12px 20px;border-radius:8px;text-decoration:none;border:0;font-weight:bold;cursor:pointer}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}@media(max-width:900px){.wrap{grid-template-columns:1fr}.grid{grid-template-columns:1fr}iframe{height:360px}}