:root{--navy: #0a2540;--blue: #1f6feb;--bg: #f7f9fc}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--navy)}header{background:var(--navy);color:#fff;padding:.75rem 1.25rem;display:flex;align-items:center;gap:1.25rem}header .brand{font-weight:700;font-size:1.15rem}header nav{display:flex;gap:1rem;margin-left:auto}header a{color:#cfe1ff;text-decoration:none}header a:hover{color:#fff}main{max-width:880px;margin:2rem auto;padding:0 1.25rem}.btn{display:inline-block;background:var(--blue);color:#fff;border:0;padding:.6rem 1.1rem;border-radius:6px;cursor:pointer;text-decoration:none;font-size:1rem}.card{background:#fff;border-radius:10px;padding:1.25rem 1.5rem;box-shadow:0 1px 4px #0a254014;margin-bottom:1rem}.muted{opacity:.7}