*{box-sizing:border-box} body{margin:0;background:#f0f0f0;color:#1b1b1b;font-family:"Source Sans 3", "Public Sans", sans-serif}
.usa{background:#112e51;color:#fff;padding:8px 20px;font-size:13px;display:flex;gap:10px;align-items:center}
.usa b{letter-spacing:.08em}
.warn{background:#b31e22;color:#fff;text-align:center;padding:10px;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
header{background:#fff;border-bottom:4px solid #112e51;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}
header img{height:64px} nav a{margin-left:16px;color:#112e51;font-weight:700;text-decoration:none;font-size:14px}
main{width:min(900px,calc(100% - 40px));margin:0 auto;padding:28px 0 64px}
h1{font-family:Merriweather,Georgia,serif;font-size:2rem}
.box{background:#fff;border:1px solid #d6d7d9;padding:20px;margin:16px 0}
footer{background:#112e51;color:#dce4ef;padding:20px;font-size:12px}