body { margin:0; font-family:Arial; background:#f7faff; color:#003366; }
.header { background:#003c8f; padding:15px 0; box-shadow:0 2px 5px rgba(0,0,0,0.1); position:sticky; top:0; z-index:100; }
.header-container { width:90%; margin:auto; display:flex; justify-content:space-between; align-items:center; }
.logo { color:#fff; font-size:26px; font-weight:bold; margin:0; }
.nav a { color:#fff; margin-left:20px; text-decoration:none; font-weight:bold; }
.hero { text-align:center; padding:80px 20px; background:#eaf3ff; }
.section { text-align:center; padding:60px 20px; }
.btn { display:inline-block; background:#0057d9; padding:14px 26px; color:#fff; text-decoration:none; border-radius:8px; font-size:18px; font-weight:bold; margin-top:15px; }
.btn:hover { background:#003c8f; }
.footer { text-align:center; padding:20px; background:#003c8f; color:#fff; margin-top:40px; }