body{margin:0;font-family:Arial,sans-serif;background:#f5f7fa;color:#333;line-height:1.7}header{background:#00bfff;color:#fff;padding:18px;text-align:center}nav a{color:#fff;text-decoration:none;margin:0 10px;font-weight:bold}.container{max-width:1100px;margin:auto;padding:40px 20px}.hero{background:#0b6ea8;color:#fff;padding:80px 20px;text-align:center}.btn{display:inline-block;background:#00bfff;color:#fff;padding:12px 20px;border-radius:6px;text-decoration:none}.grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.08);width:280px}footer{background:#00bfff;color:#fff;text-align:center;padding:25px}.sticky{position:fixed;bottom:0;left:0;width:100%;background:#00bfff;color:#fff;text-align:center;padding:14px;text-decoration:none;font-weight:bold}.section-title{text-align:center}