:root{color-scheme:dark}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:#0a0a0a;color:#e8e8e8}.shell{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:.5rem}.shell h1{margin:0;font-size:2.5rem;letter-spacing:.05em}.shell p{margin:0;color:#888;font-size:.95rem}