main{max-width:40rem;margin:2rem auto;padding:0 1rem;font-family:system-ui,sans-serif}header{align-items:center;gap:.75rem;margin-bottom:2rem;display:flex}.badge{color:#1a4fa0;background:#e6f0ff;border-radius:999px;padding:.125rem .5rem;font-size:.75rem}.mode{color:#555;margin-left:auto;font-size:.875rem}h1{margin:0 0 .5rem;font-size:1.75rem}