form[data-support-source] {
  --support-card: #151a2c;
  --support-text: #f3f6ff;
  --support-border: #778bcb55;
  --support-muted: #b6bfda;
  --support-accent: #a8bbff;
  --support-error: #ffb4b4;
}
form[data-support-source="social"] {
  --support-card: #f1f6ff;
  --support-text: #202b40;
  --support-border: #3978ed30;
  --support-muted: #586a87;
  --support-accent: #2468d6;
  --support-error: #b42318;
}
.support-diagnostics {
  max-width: 500px;
  width: 100%;
  margin: 12px auto 0;
  text-align: left;
  font-size: 13px;
  line-height: 1.5;
}
.support-diagnostics [hidden] { display: none !important; }
.support-diagnostics .support-paste-hint {
  margin: 0 0 10px;
  color: var(--support-muted);
  font: inherit;
}
.support-diagnostic-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--support-border);
  border-radius: 12px;
  background: var(--support-card);
  color: var(--support-text);
}
form[data-support-source="social"] .support-diagnostics { margin-bottom: 20px; }
.support-diagnostic-icon {
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  color: var(--support-accent);
}
.support-diagnostic-copy { flex: 1; min-width: 0; }
.support-diagnostic-title { display: block; font-size: 14px; font-weight: 600; }
.support-diagnostic-detail { display: block; color: var(--support-muted); font-size: 12px; }
.support-diagnostic-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--support-muted);
  font: inherit;
  font-size: 24px;
  cursor: pointer;
}
.support-diagnostic-remove:hover { background: var(--support-border); color: var(--support-accent); }
.support-diagnostic-remove:focus-visible { outline: 2px solid var(--support-accent); outline-offset: 2px; }
.support-diagnostics .support-error { margin: 10px 0 0; color: var(--support-error); font: inherit; }
.support-diagnostic-status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
form[data-support-source][aria-busy="true"] button[type="submit"] { opacity: .6; }