.fb { max-width: 46rem; }
.fb-notice { border: 3px solid #0b4a8f; background: #eef5fc; color: #10253d; border-radius: 6px; padding: 1rem 1.25rem; margin-bottom: 1.5rem; }
.fb-notice h2 { margin: 0 0 .5rem; font-size: 1.25rem; color: #0b3a70; }
.fb-notice p, .fb-notice li { line-height: 1.5; }
.fb-notice ul { margin: .25rem 0 .75rem 1.25rem; padding: 0; }
.fb-more { margin-top: .5rem; }
.fb-more summary { cursor: pointer; font-weight: 600; min-height: 24px; }
.fb-h { margin: 0 0 .75rem; }
.fb-set { border: 0; padding: 0; margin: 0 0 1rem; }
.fb-set legend { font-weight: 600; margin-bottom: .35rem; padding: 0; }
.fb-radio, .fb-check { display: flex; gap: .5rem; align-items: flex-start; margin: .3rem 0; min-height: 24px; }
.fb-field { display: block; font-weight: 600; margin: 0 0 1rem; }
.fb-field select, .fb-field textarea { display: block; width: 100%; margin-top: .3rem; font: inherit; font-weight: 400; padding: .5rem; box-sizing: border-box; }
.fb-muted { color: #4a5560; font-size: .9rem; margin: .25rem 0 .75rem; }
.fb-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.fb-preview { border: 1px dashed #4a5560; border-radius: 6px; padding: .75rem 1rem; margin: 1rem 0; background: #fafafa; color: #1c242c; }
.fb-preview h3 { margin: 0 0 .5rem; font-size: 1rem; }
.fb-preview dl { margin: 0; display: grid; grid-template-columns: 5rem 1fr; gap: .25rem .75rem; }
.fb-preview dt { font-weight: 600; } .fb-preview dd { margin: 0; }
.fb-preview pre { margin: 0; white-space: pre-wrap; word-break: break-word; font: inherit; max-height: 12rem; overflow: auto; }
.fb-actions { margin-top: 1rem; }
.fb-status { margin-top: .75rem; font-weight: 600; min-height: 1.4em; }
.fb-status.is-ok { color: #0b5a2a; } .fb-status.is-err { color: #a3182b; }