:root{--navy:#0A2540;--blue:#0066CC;--light:#F4F6F9;--white:#fff}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--light);color:#222}header{position:sticky;top:0;background:var(--navy);z-index:1000}.nav{max-width:1200px;margin:auto;display:flex;justify-content:space-between;align-items:center;padding:1rem}.nav a{color:#fff;text-decoration:none;margin:.5rem}.hero{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:90px 20px;text-align:center}.btn{display:inline-block;background:#fff;color:var(--blue);padding:12px 18px;border-radius:6px;text-decoration:none;margin:5px}.container{max-width:1200px;margin:auto;padding:40px 20px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.08)}footer{background:var(--navy);color:#fff;text-align:center;padding:20px}.whatsapp{position:fixed;right:20px;bottom:20px;background:#25D366;color:#fff;padding:14px 16px;border-radius:50px;text-decoration:none;font-weight:bold}form input,form textarea{width:100%;padding:10px;margin:8px 0}button{background:var(--blue);color:#fff;border:none;padding:12px 18px;border-radius:5px}ul{padding-left:18px}@media(max-width:768px){.nav{flex-direction:column}}