body{font-family:system-ui,-apple-system,sans-serif;background:#f6f6f4;color:#222;margin:0;padding:24px}
main{max-width:620px;margin:6vh auto;background:white;border:1px solid #ddd;border-radius:14px;padding:26px;box-shadow:0 8px 30px #0000000d}
h1{font-size:1.35rem;margin-top:0}.muted{color:#666}.row{margin:14px 0}
code{word-break:break-all;background:#f3f3f3;padding:2px 5px;border-radius:4px}
input{box-sizing:border-box;width:100%;padding:10px;margin:6px 0 10px;border:1px solid #bbb;border-radius:8px}
button{padding:10px 16px;border-radius:8px;border:1px solid #999;cursor:pointer;margin-right:8px}
button.primary{background:#222;color:#fff;border-color:#222}button:disabled{opacity:.55;cursor:wait}
.error{color:#a00;white-space:pre-wrap}ul{padding-left:22px}