:root{--navy:#14213D;--slate:#66708A;--sky:#2E9BFF;--sunset:#FF7A3D;--cloud:#F4F6FB}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"Nunito",Segoe UI,Roboto,sans-serif;color:var(--navy);background:linear-gradient(180deg,#7FC4FF 0%,#2E9BFF 45%,#1466C2 100%);min-height:100vh}
header{padding:56px 20px 24px;text-align:center;color:#fff}header .tile{width:84px;height:84px;border-radius:22px;background:linear-gradient(135deg,#FF9A62,#E0561E);display:inline-flex;align-items:center;justify-content:center;font-size:44px;box-shadow:0 14px 30px rgba(20,33,61,.35)}
h1{margin:16px 0 4px;font-size:34px;letter-spacing:.5px}header p{margin:0;opacity:.85}
main{max-width:760px;margin:0 auto;padding:0 20px 64px}
.card{background:#fff;border-radius:20px;padding:28px;margin-bottom:16px;box-shadow:0 10px 24px rgba(20,33,61,.12)}
h2{margin:0 0 10px;font-size:22px}h3{margin:20px 0 6px;font-size:17px}p,li{line-height:1.55;color:#2B3A5C}a{color:var(--sky);font-weight:700}
.muted{color:var(--slate);font-size:14px}nav a{color:#fff;margin:0 10px;text-decoration:none;font-weight:700;opacity:.9}footer{text-align:center;color:#fff;opacity:.8;padding:24px;font-size:13px}