.rt-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 10px;
  flex-wrap: wrap;
}

.rt-groups {
  display: grid;
  gap: 14px;
}

.rt-group {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.rt-group-head {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.rt-group-head .field { flex: 1; min-width: 200px; }

.rt-group-remove {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
}
.rt-group-remove:hover { color: #fda4a4; border-color: rgba(239, 68, 68, 0.5); background: rgba(239, 68, 68, 0.08); }

.rt-rules {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.rt-rule {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 8px;
  align-items: center;
}
.rt-rule select,
.rt-rule input {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.rt-rule-remove {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  border-radius: 6px;
  width: 30px; height: 30px;
  cursor: pointer;
  font-family: inherit;
}
.rt-rule-remove:hover { color: #fda4a4; }

.rt-add-rule {
  background: transparent;
  border: 1px dashed var(--border-strong);
  color: var(--text-muted);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
  margin-top: 6px;
  width: 100%;
  transition: all 0.15s ease;
}
.rt-add-rule:hover { border-color: var(--accent); color: var(--text); }

.rt-preview {
  margin: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--text);
  max-height: 360px;
  overflow: auto;
}

@media (max-width: 540px) {
  .rt-rule { grid-template-columns: 1fr auto; }
  .rt-rule select { grid-column: 1 / -1; }
}