:root{--bg:#1B2A41;--fg:#fff;--gold:#F2C14E;--blue:#8FD3FF}
*{box-sizing:border-box}body{margin:0;font-family:"Segoe UI",system-ui,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
main{max-width:720px;margin:0 auto;padding:2rem 1.25rem}h1{color:var(--gold);font-size:2.4rem;margin:.5rem 0}
h2{color:var(--gold);margin-top:2.2rem}a{color:var(--blue)}.box{background:#24375a;border-radius:12px;padding:1rem 1.25rem;margin:1rem 0}
.ex{color:var(--blue);font-weight:600}.muted{opacity:.75;font-size:.95rem}footer{border-top:1px solid #34496e;margin-top:3rem;padding-top:1rem;font-size:.9rem}
footer a{margin-right:1rem}
.btn{display:inline-block;background:var(--gold);color:var(--bg);font-weight:700;text-decoration:none;padding:.7rem 1.2rem;border-radius:10px}
.btn:focus,.btn:hover{outline:3px solid var(--blue)}
img{max-width:100%;height:auto}