diff --git a/frontend/src/components/ui/ReportButton.tsx b/frontend/src/components/ui/ReportButton.tsx
new file mode 100644
index 0000000..26a24b4
--- /dev/null
+++ b/frontend/src/components/ui/ReportButton.tsx
@@ -0,0 +1,65 @@
+import { useState, useEffect, useRef, useCallback } from 'react'
+import { useTranslation } from 'react-i18next'
+import { IconFlagFilled } from '@tabler/icons-react'
+import Select from './Select'
+import * as api from '../../api'
+import Tooltip from './Tooltip'
+
+export default function ReportButton({ contentType, contentId }: { contentType: string; contentId: string }) {
+  const { t } = useTranslation()
+  const wrapRef = useRef<HTMLDivElement>(null)
+
+  const REASONS = [
+    { value: '', label: t('report.selectReason') },
+    { value: 'offensive', label: t('report.offensive') },
+    { value: 'spam', label: t('report.spam') },
+    { value: 'broken', label: t('report.broken') },
+    { value: 'other', label: t('report.other') },
+  ]
+  const [reported, setReported] = useState(false)
+  const [showForm, setShowForm] = useState(false)
+  const [reason, setReason] = useState<string | number>('')
+
+  const close = useCallback(() => setShowForm(false), [])
+
+  useEffect(() => {
+    if (!showForm) return
+    const onKey = (e: KeyboardEvent) => { if (e.key === 'Escape') close() }
+    const onClick = (e: MouseEvent) => {
+      const target = e.target
+      if (wrapRef.current && (!(target instanceof Node) || !wrapRef.current.contains(target))) close()
+    }
+    document.addEventListener('keydown', onKey)
+    document.addEventListener('mousedown', onClick)
+    return () => {
+      document.removeEventListener('keydown', onKey)
+      document.removeEventListener('mousedown', onClick)
+    }
+  }, [showForm, close])
+
+  const submit = async () => {
+    try {
+      await api.submitReport(contentType, contentId, String(reason) || 'No reason given')
+      setReported(true)
+      setShowForm(false)
+    } catch { /* ignored */ }
+  }
+
+  if (reported) return <span className="report-done">{t('common.reported')}</span>
+
+  return (
+    <div className="report-wrap" ref={wrapRef}>
+      <Tooltip text={t('common.report')}>
+        <button className="report-btn" onClick={(e) => { e.stopPropagation(); setShowForm(!showForm) }}>
+          <IconFlagFilled size={10} />
+        </button>
+      </Tooltip>
+      {showForm && (
+        <div className="report-form" onClick={e => e.stopPropagation()}>
+          <Select value={reason} options={REASONS} onChange={setReason} className="report-select" />
+          <button className="btn btn-sm" onClick={submit}>{t('common.submit')}</button>
+        </div>
+      )}
+    </div>
+  )
+}