body{font-family:system-ui,sans-serif;max-width:860px;margin:0 auto;padding:24px;color:#1b1f24;line-height:1.55}
header a{color:inherit;text-decoration:none}nav a{margin-right:14px}.card{border:1px solid #d0d7de;border-radius:10px;padding:18px;margin:16px 0}
.card h2{margin:0 0 6px;font-size:1.25rem}.btn{display:inline-block;background:#ff6b3d;color:#fff;padding:9px 16px;border-radius:8px;text-decoration:none;font-weight:600;margin-right:10px}
.sub{color:#57606a}form{background:#f6f8fa;padding:18px;border-radius:10px}input{padding:8px;width:60%}button{padding:8px 14px}footer{margin-top:40px;color:#57606a;font-size:.9rem}