:root{--background:#fff;--foreground:#1a1a1a;--muted:#5c5c5c;--border:#d4d4d4}@media (prefers-color-scheme:dark){:root{--background:#111;--foreground:#ededed;--muted:#a3a3a3;--border:#3a3a3a}}*{box-sizing:border-box}body{color:var(--foreground);background:var(--background);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5}main{max-width:40rem;margin:0 auto;padding:2rem 1rem}a{color:inherit}.muted{color:var(--muted)}.small{font-size:.875rem}.button{background:var(--foreground);color:var(--background);border-radius:.375rem;padding:.5rem 1rem;font-weight:600;text-decoration:none;display:inline-block}.card{border:1px solid var(--border);border-radius:.5rem;margin:1rem 0;padding:1rem}.details{grid-template-columns:max-content 1fr;gap:.25rem 1rem;margin:0 0 .5rem;display:grid}.details dt{color:var(--muted)}.details dd{margin:0;font-weight:600}.notice{border:1px solid var(--border);border-radius:.5rem;margin:1rem 0;padding:.75rem 1rem}.notice-error{border-color:#b42318}