*{box-sizing:border-box}body{margin:0;font:16px/1.65 -apple-system,Segoe UI,Roboto,sans-serif;color:#1c2330;background:#fff}header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:16px 7vw;background:#0f2742}.logo{color:#fff;font-weight:600;text-decoration:none;letter-spacing:.5px}nav a{color:#c9d6e8;margin-left:22px;text-decoration:none;font-size:15px}nav a:hover{color:#fff}main{max-width:900px;margin:0 auto;padding:40px 22px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{border:1px solid #e4e8ef;border-radius:10px;padding:20px}.hero{background:linear-gradient(120deg,#e8f0fb,#f7f9fc);padding:36px;border-radius:12px;margin-bottom:30px}h1,h2,h3{color:#0f2742}.muted{color:#6b7585;font-size:14px}footer{border-top:1px solid #eee;text-align:center;color:#8a93a3;font-size:14px;padding:26px}footer a{color:#8a93a3}