feat: enhance TrainingCoachPage with exercise details and navigation

- Replaced ExercisePeekModal with ExerciseFullContent for improved exercise visibility.
- Added CoachStepNavBar component for better navigation between training steps.
- Implemented loading and error handling for fetching exercise details based on the current step.
- Updated UI elements for a more cohesive layout and improved user experience.

frontend/src/app.css

@@ -2740,3 +2740,27 @@ a.analysis-split__nav-item {
     page-break-inside: avoid;
   }
 }
+
+/* Coach — volle Übung, Nur-Mittelbereich scrollt; Steuerung oben/unten sichtbar */
+.training-coach-layout {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+  max-width: 720px;
+  margin: 0 auto;
+  min-height: calc(100dvh - var(--header-h) - var(--nav-h) - env(safe-area-inset-bottom, 0px) - 48px);
+}
+
+@media (min-width: 1024px) {
+  .training-coach-layout {
+    min-height: calc(100dvh - env(safe-area-inset-bottom, 0px) - 24px);
+  }
+}
+
+.training-coach-scroll {
+  flex: 1;
+  min-height: 0;
+  overflow-y: auto;
+  -webkit-overflow-scrolling: touch;
+  padding-bottom: 4px;
+}

frontend/src/components/ExerciseFullContent.jsx

@@ -0,0 +1,203 @@
+/**
+ * Voller Katalog-Inhalt einer Übung (Lesemodus für Coach/Mobile).
+ */
+import React from 'react'
+import { Link } from 'react-router-dom'
+import { sanitizeTrainerHtml } from '../utils/htmlUtils'
+
+const API_BASE = (import.meta.env.VITE_API_URL || '').replace(/\/$/, '')
+
+function resolveMediaUrl(filePath) {
+  if (!filePath) return null
+  if (filePath.startsWith('http://') || filePath.startsWith('https://')) return filePath
+  const p = filePath.startsWith('/') ? filePath : `/${filePath}`
+  return `${API_BASE}${p}`
+}
+
+function HtmlBlock({ html, className = '' }) {
+  if (!html || !String(html).trim()) return null
+  const safe = sanitizeTrainerHtml(html)
+  return (
+    <div className={`rich-text-content ${className}`} dangerouslySetInnerHTML={{ __html: safe }} />
+  )
+}
+
+function MediaBlock({ media }) {
+  if (media.embed_url) {
+    return (
+      <div style={{ marginTop: '0.5rem' }}>
+        <a href={media.embed_url} target="_blank" rel="noreferrer">
+          {media.embed_url}
+        </a>
+        {media.embed_platform && (
+          <span style={{ color: 'var(--text2)', marginLeft: '0.5rem', fontSize: '0.8rem' }}>
+            ({media.embed_platform})
+          </span>
+        )}
+      </div>
+    )
+  }
+  const src = resolveMediaUrl(media.file_path)
+  if (!src) return null
+  if (media.media_type === 'image' || (media.mime_type && media.mime_type.startsWith('image/'))) {
+    return (
+      <img
+        src={src}
+        alt={media.title || media.original_filename || ''}
+        style={{ maxWidth: '100%', borderRadius: '8px', marginTop: '0.5rem' }}
+      />
+    )
+  }
+  if (media.media_type === 'video' || (media.mime_type && media.mime_type.startsWith('video/'))) {
+    return <video src={src} controls style={{ width: '100%', marginTop: '0.5rem', borderRadius: '8px' }} />
+  }
+  return (
+    <a href={src} target="_blank" rel="noreferrer" style={{ display: 'inline-block', marginTop: '0.5rem' }}>
+      {media.title || media.original_filename || 'Datei öffnen'}
+    </a>
+  )
+}
+
+function TagRow({ exercise }) {
+  const tags = []
+  ;(exercise.focus_areas || []).forEach((f) => {
+    tags.push({ key: `fa-${f.id}`, label: f.name, accent: !!f.is_primary })
+  })
+  ;(exercise.training_styles || []).forEach((t) => {
+    tags.push({ key: `ts-${t.id}`, label: t.name, accent: false })
+  })
+  ;(exercise.training_types || []).forEach((t) => {
+    tags.push({ key: `tt-${t.id}`, label: t.name, accent: false })
+  })
+  ;(exercise.target_groups || []).forEach((g) => {
+    tags.push({ key: `tg-${g.id}`, label: g.name, accent: !!g.is_primary })
+  })
+  if (tags.length === 0) return null
+  return (
+    <div className="exercise-tag-row">
+      {tags.map((t) => (
+        <span key={t.key} className={`exercise-tag${t.accent ? ' exercise-tag--accent' : ''}`}>
+          {t.label}
+        </span>
+      ))}
+    </div>
+  )
+}
+
+function metaParts(exercise) {
+  const parts = []
+  if (exercise.duration_min != null || exercise.duration_max != null) {
+    const a = exercise.duration_min
+    const b = exercise.duration_max
+    if (a != null && b != null && a !== b) parts.push(`${a}–${b} Min.`)
+    else if (a != null) parts.push(`ca. ${a} Min.`)
+    else if (b != null) parts.push(`ca. ${b} Min.`)
+  }
+  if (exercise.group_size_min != null || exercise.group_size_max != null) {
+    const a = exercise.group_size_min
+    const b = exercise.group_size_max
+    if (a != null && b != null && a !== b) parts.push(`Gruppe ${a}–${b}`)
+    else if (a != null) parts.push(`Gruppe ab ${a}`)
+    else if (b != null) parts.push(`Gruppe bis ${b}`)
+  }
+  return parts
+}
+
+/**
+ * @param {{ exercise?: object|null, loading?: boolean, error?: string|null, exerciseId?: number }} props
+ */
+export default function ExerciseFullContent({ exercise, loading, error, exerciseId }) {
+  if (loading) {
+    return (
+      <div style={{ textAlign: 'center', padding: '1rem' }}>
+        <div className="spinner" />
+        <p style={{ marginTop: '10px', color: 'var(--text2)', fontSize: '0.9rem' }}>Übung aus Katalog laden…</p>
+      </div>
+    )
+  }
+  if (error) {
+    return <p style={{ color: 'var(--danger)', fontSize: '0.92rem', padding: '4px 0' }}>{error}</p>
+  }
+  if (!exercise) return null
+
+  const meta = metaParts(exercise)
+
+  return (
+    <div className="exercise-coach-catalog" style={{ fontSize: '0.93rem', lineHeight: 1.5 }}>
+      <h2 style={{ margin: '0 0 8px', fontSize: '1.2rem', lineHeight: 1.35 }}>{exercise.title}</h2>
+      {meta.length > 0 && (
+        <p className="exercise-meta-line" style={{ marginBottom: '10px', color: 'var(--text3)', fontSize: '0.86rem' }}>
+          {meta.join(' · ')}
+        </p>
+      )}
+      <TagRow exercise={exercise} />
+      {exercise.summary && (
+        <section className="card" style={{ marginTop: '12px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px', letterSpacing: '0.04em' }}>
+            Kurzbeschreibung
+          </h3>
+          <HtmlBlock html={exercise.summary} />
+        </section>
+      )}
+      {exercise.goal && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>Ziel</h3>
+          <HtmlBlock html={exercise.goal} />
+        </section>
+      )}
+      {(exercise.equipment || []).length > 0 && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>
+            Material &amp; Aufbau
+          </h3>
+          <ul style={{ paddingLeft: '1.1rem', margin: 0 }}>
+            {exercise.equipment.map((x, i) => (
+              <li key={i}>{x}</li>
+            ))}
+          </ul>
+        </section>
+      )}
+      {exercise.preparation && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>Vorbereitung</h3>
+          <HtmlBlock html={exercise.preparation} />
+        </section>
+      )}
+      {exercise.execution && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>Ablauf</h3>
+          <HtmlBlock html={exercise.execution} />
+        </section>
+      )}
+      {(exercise.media || []).length > 0 && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>
+            Medien
+          </h3>
+          {exercise.media.map((m) => (
+            <div key={m.id} style={{ marginBottom: '12px' }}>
+              <strong style={{ fontSize: '0.9rem' }}>{m.title || m.original_filename || m.media_type}</strong>
+              {m.description && <p style={{ color: 'var(--text2)', fontSize: '0.82rem', marginTop: '4px' }}>{m.description}</p>}
+              <MediaBlock media={m} />
+            </div>
+          ))}
+        </section>
+      )}
+      {exercise.trainer_notes && (
+        <section className="card" style={{ marginTop: '10px', padding: '12px 14px' }}>
+          <h3 style={{ fontSize: '0.78rem', textTransform: 'uppercase', color: 'var(--text3)', marginBottom: '8px' }}>
+            Hinweise Trainer (Katalog)
+          </h3>
+          <HtmlBlock html={exercise.trainer_notes} />
+        </section>
+      )}
+      {exerciseId != null && (
+        <p style={{ marginTop: '12px' }}>
+          <Link to={`/exercises/${exerciseId}`} style={{ fontSize: '0.86rem', color: 'var(--accent)' }}>
+            Volle Übungsseite im Browser
+          </Link>
+        </p>
+      )}
+    </div>
+  )
+}

frontend/src/pages/TrainingCoachPage.jsx

@@ -4,7 +4,7 @@
 import React, { useCallback, useEffect, useMemo, useState } from 'react'
 import { Link, useNavigate, useParams } from 'react-router-dom'
 import api from '../utils/api'
-import ExercisePeekModal from '../components/ExercisePeekModal'
+import ExerciseFullContent from '../components/ExerciseFullContent'
 import {
   flattenPlanTimeline,
   itemStableKey,
@@ -26,16 +26,30 @@ function formatClock(totalSec) {
   return `${String(m).padStart(2, '0')}:${String(s).padStart(2, '0')}`
 }
 
-function statusLabel(s) {
-  if (s === 'completed') return 'Durchgeführt'
-  if (s === 'cancelled') return 'Abgesagt'
-  return 'Geplant'
-}
-
 function mergeDelta(setDeltas, itemKey, patch) {
   setDeltas((prev) => ({ ...prev, [itemKey]: { ...prev[itemKey], ...patch } }))
 }
 
+function CoachStepNavBar({ step, timelineLength, onPrev, onNext, onDone }) {
+  const disPrev = step <= 0
+  const disNext = step >= timelineLength - 1
+  return (
+    <div className="training-coach-stepbar" style={{ marginBottom: '10px' }}>
+      <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: '10px', marginBottom: '8px' }}>
+        <button type="button" className="btn btn-secondary" style={{ minHeight: '50px', fontWeight: 700 }} disabled={disPrev} onClick={onPrev}>
+          ← zurück
+        </button>
+        <button type="button" className="btn btn-secondary" style={{ minHeight: '50px', fontWeight: 700 }} disabled={disNext} onClick={onNext}>
+          weiter →
+        </button>
+      </div>
+      <button type="button" className="btn btn-primary" style={{ width: '100%', minHeight: '48px', fontWeight: 700 }} onClick={onDone}>
+        Abgeschlossen &amp; weiter
+      </button>
+    </div>
+  )
+}
+
 export default function TrainingCoachPage() {
   const { unitId } = useParams()
   const navigate = useNavigate()
@@ -45,8 +59,10 @@ export default function TrainingCoachPage() {
   const [loadError, setLoadError] = useState(null)
   const [loading, setLoading] = useState(true)
 
-  const [peekId, setPeekId] = useState(null)
   const [outlineOpen, setOutlineOpen] = useState(false)
+  const [catalogExercise, setCatalogExercise] = useState(null)
+  const [catalogLoading, setCatalogLoading] = useState(false)
+  const [catalogError, setCatalogError] = useState(null)
   const [debriefOpen, setDebriefOpen] = useState(false)
 
   const [step, setStep] = useState(0)
@@ -193,6 +209,44 @@ export default function TrainingCoachPage() {
     return out
   }, [timeline, deltas])
 
+  useEffect(() => {
+    const item = currentEntry?.item
+    if (!item || item.item_type === 'note') {
+      setCatalogExercise(null)
+      setCatalogError(null)
+      setCatalogLoading(false)
+      return
+    }
+    const eid = item.exercise_id
+    if (!eid) {
+      setCatalogExercise(null)
+      setCatalogError(null)
+      setCatalogLoading(false)
+      return
+    }
+    let cancelled = false
+    setCatalogLoading(true)
+    setCatalogError(null)
+    setCatalogExercise(null)
+    api.getExercise(eid)
+      .then((ex) => {
+        if (!cancelled) {
+          setCatalogExercise(ex)
+          setCatalogLoading(false)
+        }
+      })
+      .catch((err) => {
+        if (!cancelled) {
+          setCatalogError(err.message || String(err))
+          setCatalogExercise(null)
+          setCatalogLoading(false)
+        }
+      })
+    return () => {
+      cancelled = true
+    }
+  }, [step, currentEntry?.item?.exercise_id, currentEntry?.item?.item_type])
+
   const handleSaveDebrief = async () => {
     setSaveOk(null)
     setSaving(true)
@@ -246,12 +300,18 @@ export default function TrainingCoachPage() {
   }
 
   return (
-    <div className="training-coach-page" style={{ maxWidth: '720px', margin: '0 auto', paddingBottom: 'calc(env(safe-area-inset-bottom) + 2rem)' }}>
-      <ExercisePeekModal open={peekId != null} exerciseId={peekId || null} onClose={() => setPeekId(null)} titleFallback={null} />
-
+    <div className="training-coach-page training-coach-layout">
       <nav
-        className="no-print training-coach-top"
-        style={{ display: 'flex', flexWrap: 'wrap', gap: '8px', alignItems: 'center', marginBottom: '12px' }}
+        className="no-print training-coach-meta-nav"
+        style={{
+          flexShrink: 0,
+          display: 'flex',
+          flexWrap: 'wrap',
+          gap: '8px',
+          alignItems: 'center',
+          marginBottom: '8px',
+          paddingBottom: '4px'
+        }}
       >
         <button type="button" className="btn btn-secondary" onClick={() => navigate(`/planning/run/${unitId}`)}>
           Zur Planansicht
@@ -269,32 +329,31 @@ export default function TrainingCoachPage() {
         </button>
       </nav>
 
-      <header className="card training-coach-hero" style={{ padding: '14px 16px', marginBottom: '12px', background: 'var(--surface)', borderRadius: '12px', borderLeft: `4px solid var(--accent)` }}>
-        <div style={{ fontSize: '0.75rem', color: 'var(--text3)', textTransform: 'uppercase', letterSpacing: '0.06em' }}>Im Training · Coach</div>
-        <h1 style={{ fontSize: '1.28rem', margin: '8px 0 6px', lineHeight: 1.28 }}>
+      <header
+        className="card training-coach-hero training-coach-hero--compact"
+        style={{
+          flexShrink: 0,
+          padding: '12px 14px',
+          marginBottom: '8px',
+          background: 'var(--surface)',
+          borderRadius: '12px',
+          borderLeft: `4px solid var(--accent)`
+        }}
+      >
+        <div style={{ fontSize: '0.7rem', color: 'var(--text3)', textTransform: 'uppercase', letterSpacing: '0.06em' }}>
+          Coach · Schritt {(step || 0) + 1} / {Math.max(timeline.length, 1)}
+        </div>
+        <h1 style={{ fontSize: '1.1rem', margin: '4px 0 0', lineHeight: 1.28 }}>
           {unit.planned_date}
           {unit.planned_time_start && ` · ${String(unit.planned_time_start).slice(0, 5)}`}
           {unit.planned_focus ? ` · ${unit.planned_focus}` : ''}
         </h1>
-        <div style={{ fontSize: '0.86rem', color: 'var(--text2)', display: 'flex', gap: '10px', flexWrap: 'wrap', alignItems: 'center' }}>
-          {unit.group_name && (
-            <span>
-              <strong>Gruppe</strong>: {unit.group_name}
-            </span>
-          )}
-          <span>
-            <strong>Status:</strong> {statusLabel(unit.status)}
-          </span>
-          <span style={{ opacity: 0.85 }}>
-            Schritt {(step || 0) + 1} / {Math.max(timeline.length, 1)}
-          </span>
-        </div>
       </header>
 
       {outlineOpen && (
-        <div className="card training-coach-outline" style={{ marginBottom: '12px', padding: '12px 14px' }}>
-          <div style={{ fontSize: '0.78rem', color: 'var(--text3)', marginBottom: '8px' }}>Ablauf (Antippen springt zum Schritt)</div>
-          <div style={{ display: 'flex', flexDirection: 'column', gap: '6px', maxHeight: '38vh', overflowY: 'auto' }}>
+        <div className="card training-coach-outline" style={{ flexShrink: 0, marginBottom: '8px', padding: '10px 12px', maxHeight: 'min(28vh, 260px)', display: 'flex', flexDirection: 'column', minHeight: 0 }}>
+          <div style={{ fontSize: '0.75rem', color: 'var(--text3)', marginBottom: '6px', flexShrink: 0 }}>Ablauf · Antippen zum Springen</div>
+          <div style={{ display: 'flex', flexDirection: 'column', gap: '6px', overflowY: 'auto', minHeight: 0 }}>
             {timeline.map((ent, ix) => {
               const lbl = summarizeTimelineEntry(ent)
               const secTitle = ent.sec.title || `Abschnitt ${ent.si + 1}`
@@ -308,7 +367,7 @@ export default function TrainingCoachPage() {
                     textAlign: 'left',
                     justifyContent: 'flex-start',
                     opacity: active ? 1 : 0.92,
-                    fontWeight: active ? 700 : 500,
+                    fontWeight: active ? 700 : 500
                   }}
                   onClick={() => setStep(ix)}
                 >
@@ -322,208 +381,218 @@ export default function TrainingCoachPage() {
       )}
 
       {timeline.length === 0 ? (
-        <p className="card" style={{ padding: '1rem' }}>
-          Dieser Plan ist leer.{' '}
-          <Link to="/planning">Unter Planung ergänzen</Link>.
+        <p className="card" style={{ padding: '1rem', flexShrink: 0 }}>
+          Dieser Plan ist leer. <Link to="/planning">Unter Planung ergänzen</Link>.
         </p>
       ) : (
         <>
-          <div className="card training-coach-assist" style={{ marginBottom: '12px', padding: '14px 16px', background: 'var(--accent-light)' }}>
-            <div style={{ fontSize: '0.75rem', fontWeight: 700, color: 'var(--accent-dark)', marginBottom: '8px' }}>Assistenz · als Nächstes</div>
+          <div
+            className="training-coach-assist training-coach-assist--compact"
+            style={{
+              flexShrink: 0,
+              marginBottom: '8px',
+              padding: '12px 14px',
+              background: 'var(--accent-light)',
+              borderRadius: '12px'
+            }}
+          >
+            <div style={{ fontSize: '0.72rem', fontWeight: 700, color: 'var(--accent-dark)', marginBottom: '6px' }}>
+              Als Nächstes
+            </div>
             {nextEntry ? (
               <>
-                <p style={{ margin: '0 0 6px', fontSize: '0.94rem', color: 'var(--text1)' }}>
+                <p style={{ margin: '0', fontSize: '0.9rem', color: 'var(--text1)', lineHeight: 1.4 }}>
                   <strong>Nächste:</strong> {summarizeTimelineEntry(nextEntry)}
                 </p>
                 {next2Entry && (
-                  <p style={{ margin: 0, fontSize: '0.85rem', color: 'var(--text2)' }}>
+                  <p style={{ margin: '6px 0 0', fontSize: '0.82rem', color: 'var(--text2)' }}>
                     <strong>Daraufhin:</strong> {summarizeTimelineEntry(next2Entry)}
                   </p>
                 )}
               </>
             ) : (
-              <p style={{ margin: 0, fontSize: '0.95rem', color: 'var(--text2)' }}>
-                Dies war der letzte Eintrag.
-                <br />
-                Gute Arbeit — unten kannst du notieren und Ist-Zeiten speichern.
+              <p style={{ margin: 0, fontSize: '0.88rem', color: 'var(--text2)' }}>
+                Letzter Punkt — unten Zeit speichern / Nachbereitung öffnen.
               </p>
             )}
           </div>
 
-          {currentEntry && (
-            <div className="card training-coach-current" style={{ marginBottom: '14px', padding: '18px 16px' }}>
-              <div style={{ fontSize: '0.78rem', color: 'var(--text3)', marginBottom: '6px' }}>
-                {currentEntry.sec.title || 'Abschnitt'} · Teil {step + 1}
-              </div>
+          <CoachStepNavBar
+            step={step}
+            timelineLength={timeline.length}
+            onPrev={goPrev}
+            onNext={goNext}
+            onDone={markCurrentDoneAdvance}
+          />
 
-              {currentEntry.item.item_type === 'note' && (
-                <div>
-                  <div style={{ fontSize: '0.8rem', color: 'var(--text3)' }}>Coach-Notiz</div>
-                  <p style={{ fontSize: '1.06rem', lineHeight: 1.52, whiteSpace: 'pre-wrap', marginTop: '8px' }}>{currentEntry.item.note_body || ''}</p>
+          <div className="training-coach-scroll">
+            {currentEntry?.item?.item_type === 'note' ? (
+              <div className="card" style={{ padding: '16px 14px' }}>
+                <div style={{ fontSize: '0.74rem', color: 'var(--text3)', marginBottom: '8px' }}>
+                  {currentEntry.sec.title || 'Abschnitt'} · Coach-Notiz · Teil {step + 1}
                 </div>
-              )}
+                <div style={{ fontSize: '0.78rem', color: 'var(--text3)', marginBottom: '6px' }}>Coach-Notiz</div>
+                <p style={{ fontSize: '1.05rem', lineHeight: 1.52, whiteSpace: 'pre-wrap', margin: 0 }}>{currentEntry.item.note_body || ''}</p>
+              </div>
+            ) : (
+              <>
+                <div className="card training-coach-plan-strip" style={{ padding: '12px 14px', marginBottom: '12px', borderRadius: '12px', borderLeft: `3px solid var(--accent)` }}>
+                  <div style={{ fontSize: '0.74rem', color: 'var(--text3)', marginBottom: '6px' }}>
+                    In diesem Training · {currentEntry?.sec.title || 'Abschnitt'} · Teil {step + 1}
+                  </div>
+                  {currentEntry?.item && (
+                    <>
+                      <p style={{ margin: '0 0 6px', fontSize: '0.95rem', fontWeight: 700 }}>
+                        {currentEntry.item.exercise_title ||
+                          (currentEntry.item.exercise_id ? `Übung #${currentEntry.item.exercise_id}` : 'Übung')}
+                        {currentEntry.item.exercise_variant_name ? (
+                          <span style={{ fontWeight: 600, color: 'var(--text2)' }}> ({currentEntry.item.exercise_variant_name})</span>
+                        ) : null}
+                      </p>
+                      <p style={{ fontSize: '0.83rem', color: 'var(--text3)', marginBottom: '8px' }}>
+                        geplant <strong>{currentEntry.item.planned_duration_min ?? '—'}</strong> Min · Ist (Plan):{' '}
+                        <strong>
+                          {durationOverridesForApi[String(currentEntry.item.id)] != null
+                            ? durationOverridesForApi[String(currentEntry.item.id)].actual_duration_min
+                            : currentEntry.item.actual_duration_min ?? '—'}{' '}
+                          Min
+                        </strong>{' '}
+                        {durationOverridesForApi[String(currentEntry.item.id)] != null ? '(Entwurf)' : ''}
+                      </p>
+                      {currentEntry.item.exercise_focus_area ? (
+                        <p style={{ fontSize: '0.82rem', color: 'var(--text2)', marginBottom: '10px' }}>{currentEntry.item.exercise_focus_area}</p>
+                      ) : null}
+                      {currentEntry.item.notes ? (
+                        <div style={{ marginBottom: '10px', padding: '10px', background: 'var(--surface2)', borderRadius: '8px' }}>
+                          <div style={{ fontSize: '0.72rem', textTransform: 'uppercase', color: 'var(--text3)' }}>Zu dieser Platzierung</div>
+                          <p style={{ marginTop: '4px', whiteSpace: 'pre-wrap', fontSize: '0.93rem' }}>{currentEntry.item.notes}</p>
+                        </div>
+                      ) : null}
+                      {currentEntry.item.modifications ? (
+                        <div style={{ padding: '10px', borderRadius: '8px', border: `1px solid var(--accent)` }}>
+                          <div style={{ fontSize: '0.72rem', textTransform: 'uppercase', color: 'var(--accent-dark)' }}>Anpassung</div>
+                          <p style={{ marginTop: '4px', whiteSpace: 'pre-wrap', fontSize: '0.93rem' }}>{currentEntry.item.modifications}</p>
+                        </div>
+                      ) : null}
+                    </>
+                  )}
+                  <hr style={{ border: 'none', borderTop: '1px solid var(--border)', margin: '14px 0 12px' }} />
+                  <div style={{ fontSize: '0.72rem', textTransform: 'uppercase', letterSpacing: '0.04em', color: 'var(--text3)', marginBottom: '6px' }}>
+                    Übung aus dem Katalog (vollständig)
+                  </div>
+                  <ExerciseFullContent
+                    loading={catalogLoading}
+                    error={catalogError}
+                    exercise={catalogExercise}
+                    exerciseId={currentEntry?.item?.exercise_id ?? null}
+                  />
+                </div>
+              </>
+            )}
 
-              {currentEntry.item.item_type !== 'note' && (
+            {unit.trainer_notes ? (
+              <div className="card" style={{ marginBottom: '12px', padding: '12px 14px', borderLeft: `4px solid var(--accent)` }}>
+                <div style={{ fontSize: '0.7rem', fontWeight: 700, color: 'var(--text3)', textTransform: 'uppercase' }}>Einheit · Trainernotizen</div>
+                <p style={{ fontSize: '0.88rem', marginTop: '6px', whiteSpace: 'pre-wrap', color: 'var(--text2)' }}>{unit.trainer_notes}</p>
+              </div>
+            ) : null}
+
+            <div className="card training-coach-debrief" style={{ padding: '14px', marginBottom: '8px', borderRadius: '10px' }}>
+              <button
+                type="button"
+                className="btn btn-secondary"
+                style={{ width: '100%', textAlign: 'left', justifyContent: 'space-between', display: 'flex', alignItems: 'center' }}
+                onClick={() => setDebriefOpen(!debriefOpen)}
+              >
+                <span style={{ fontWeight: 700 }}>Nachbereitung &amp; speichern</span>
+                <span>{debriefOpen ? '▼' : '▶'}</span>
+              </button>
+              {debriefOpen && (
                 <>
-                  <h2 style={{ fontSize: '1.32rem', lineHeight: 1.35, marginBottom: '10px', fontWeight: 800 }}>
-                    {currentEntry.item.exercise_title ||
-                      (currentEntry.item.exercise_id ? `Übung #${currentEntry.item.exercise_id}` : 'Übung')}
-                    {currentEntry.item.exercise_variant_name ? (
-                      <span style={{ fontWeight: 600, color: 'var(--text2)' }}> ({currentEntry.item.exercise_variant_name})</span>
-                    ) : null}
-                  </h2>
-                  <p style={{ fontSize: '0.9rem', color: 'var(--text3)', marginBottom: '10px' }}>
-                    geplant <strong>{currentEntry.item.planned_duration_min ?? '—'}</strong> Min · Ist (Plan/Bearbeitung):{' '}
-                    <strong>
-                      {durationOverridesForApi[String(currentEntry.item.id)] != null
-                        ? durationOverridesForApi[String(currentEntry.item.id)].actual_duration_min
-                        : currentEntry.item.actual_duration_min ?? '—'}{' '}
-                      Min
-                    </strong>
-                    {durationOverridesForApi[String(currentEntry.item.id)] != null ? ' (Entwurf)' : ''}
+                  <p style={{ fontSize: '0.82rem', color: 'var(--text2)', margin: '14px 0 10px', lineHeight: 1.5 }}>
+                    <strong>Ist‑Minuten</strong> anpassen und Einheit speichern (inkl. Trainer-Ergänzung).
                   </p>
-                  {currentEntry.item.exercise_focus_area && (
-                    <p style={{ fontSize: '0.85rem', color: 'var(--text2)', marginBottom: '10px' }}>
-                      Bereich: {currentEntry.item.exercise_focus_area}
+                  <div style={{ display: 'flex', flexDirection: 'column', gap: '10px', marginBottom: '12px' }}>
+                    {timeline
+                      .filter((e) => e.item.item_type === 'exercise')
+                      .map((ent) => {
+                        const k = itemStableKey(ent.item, ent.secOrder, ent.ii)
+                        const val = deltas[k]?.actual_duration_min ?? ent.item.actual_duration_min ?? ''
+                        return (
+                          <label key={k} style={{ display: 'grid', gridTemplateColumns: '1fr 88px', gap: '10px', alignItems: 'center', fontSize: '0.88rem' }}>
+                            <span style={{ wordBreak: 'break-word' }}>{summarizeTimelineEntry(ent)}</span>
+                            <input
+                              type="number"
+                              min="0"
+                              className="form-input"
+                              style={{ margin: 0 }}
+                              value={val === '' || val == null ? '' : String(val)}
+                              placeholder="Min"
+                              onChange={(e) => {
+                                const raw = e.target.value
+                                if (raw === '') mergeDelta(setDeltas, k, { actual_duration_min: null })
+                                else mergeDelta(setDeltas, k, { actual_duration_min: parseInt(raw, 10) })
+                              }}
+                            />
+                          </label>
+                        )
+                      })}
+                  </div>
+                  <label style={{ display: 'block', marginBottom: '10px', fontSize: '0.88rem', color: 'var(--text2)' }}>
+                    Ergänzung Trainer (wird angehängt · mit Zeitstempel)
+                    <textarea className="form-input" rows={3} value={trainerAppend} onChange={(e) => setTrainerAppend(e.target.value)} style={{ marginTop: '6px' }} />
+                  </label>
+                  <label style={{ display: 'flex', alignItems: 'center', gap: '8px', marginBottom: '12px', fontSize: '0.88rem' }}>
+                    <input type="checkbox" checked={saveMarkDone} onChange={(e) => setSaveMarkDone(e.target.checked)} />
+                    Einheit als <strong>durchgeführt</strong> markieren
+                  </label>
+                  {saveOk && (
+                    <p
+                      style={{
+                        fontSize: '0.88rem',
+                        marginBottom: '8px',
+                        color: saveOk.startsWith('Fehler') ? 'var(--danger)' : 'var(--accent-dark)'
+                      }}
+                    >
+                      {saveOk}
                     </p>
                   )}
-                  {currentEntry.item.notes ? (
-                    <div style={{ marginBottom: '12px', padding: '10px', background: 'var(--surface2)', borderRadius: '8px' }}>
-                      <div style={{ fontSize: '0.72rem', textTransform: 'uppercase', color: 'var(--text3)' }}>Zu dieser Platzierung</div>
-                      <p style={{ fontSize: '0.96rem', marginTop: '4px', whiteSpace: 'pre-wrap' }}>{currentEntry.item.notes}</p>
-                    </div>
-                  ) : null}
-                  {currentEntry.item.modifications ? (
-                    <div style={{ marginBottom: '12px', padding: '10px', borderRadius: '8px', border: `1px solid var(--accent)` }}>
-                      <div style={{ fontSize: '0.72rem', textTransform: 'uppercase', color: 'var(--accent-dark)' }}>Anpassung / Variante</div>
-                      <p style={{ fontSize: '0.96rem', marginTop: '4px', whiteSpace: 'pre-wrap' }}>{currentEntry.item.modifications}</p>
-                    </div>
-                  ) : null}
-                  {currentEntry.item.exercise_id ? (
-                    <button type="button" className="btn btn-secondary" onClick={() => setPeekId(currentEntry.item.exercise_id)} style={{ marginTop: '4px' }}>
-                      Übung aus Katalog (Popup)
-                    </button>
-                  ) : null}
+                  <button type="button" className="btn btn-primary" style={{ width: '100%', minHeight: '48px' }} disabled={saving} onClick={handleSaveDebrief}>
+                    {saving ? 'Speichert…' : 'Speichern'}
+                  </button>
                 </>
               )}
             </div>
-          )}
+          </div>
 
-          <div className="card training-coach-timer" style={{ marginBottom: '14px', padding: '16px', textAlign: 'center', background: 'var(--surface2)' }}>
-            <div style={{ fontSize: '0.74rem', textTransform: 'uppercase', letterSpacing: '0.08em', color: 'var(--text3)', marginBottom: '8px' }}>Zeitnahme für diesen Punkt</div>
-            <div style={{ fontSize: '2.65rem', fontWeight: 800, letterSpacing: '0.06em', fontVariantNumeric: 'tabular-nums', marginBottom: '14px' }}>
+          <div className="card training-coach-timer" style={{ flexShrink: 0, padding: '12px', textAlign: 'center', background: 'var(--surface2)', borderRadius: '12px', marginBottom: '8px' }}>
+            <div style={{ fontSize: '0.7rem', textTransform: 'uppercase', letterSpacing: '0.08em', color: 'var(--text3)', marginBottom: '6px' }}>Zeitnahme</div>
+            <div style={{ fontSize: '2.2rem', fontWeight: 800, letterSpacing: '0.06em', fontVariantNumeric: 'tabular-nums', marginBottom: '10px' }}>
               {formatClock(tickDisplaySec)}
             </div>
-            <div style={{ display: 'flex', gap: '10px', flexWrap: 'wrap', justifyContent: 'center', marginBottom: '10px' }}>
+            <div style={{ display: 'flex', gap: '8px', flexWrap: 'wrap', justifyContent: 'center', marginBottom: '8px' }}>
               {!runStartAt ? (
-                <button type="button" className="btn btn-primary" style={{ minWidth: '112px', minHeight: '48px' }} onClick={timerStart}>
+                <button type="button" className="btn btn-primary" style={{ minWidth: '100px', minHeight: '46px' }} onClick={timerStart}>
                   Start
                 </button>
               ) : (
-                <button type="button" className="btn btn-secondary" style={{ minWidth: '112px', minHeight: '48px' }} onClick={timerPause}>
+                <button type="button" className="btn btn-secondary" style={{ minWidth: '100px', minHeight: '46px' }} onClick={timerPause}>
                   Pause / Stopp
                 </button>
               )}
-              <button type="button" className="btn btn-secondary" style={{ minHeight: '48px' }} onClick={() => timerReset()}>
+              <button type="button" className="btn btn-secondary" style={{ minHeight: '46px' }} onClick={() => timerReset()}>
                 Zurücksetzen
               </button>
             </div>
-            <p style={{ fontSize: '0.82rem', color: 'var(--text2)', marginBottom: '10px' }}>
-              Übernimmt die gemessene Zeit (auf volle Minuten gerundet) als <strong>Ist‑Minuten</strong> für dieses Element und kann später mit „Nachbereitung“ auf dem Server gespeichert werden.
+            <p style={{ fontSize: '0.76rem', color: 'var(--text2)', marginBottom: '10px' }}>
+              Übernimmt Ist‑Minuten für diesen Platz (gerundet).
             </p>
-            <button type="button" className="btn btn-primary" style={{ width: '100%', maxWidth: '400px', minHeight: '48px' }} onClick={applySuggestedDuration}>
-              {`Übernehmen für Ist-Zeit (${Math.max(1, Math.round(elapsedMs / 60000))} Min.)`}
+            <button type="button" className="btn btn-primary" style={{ width: '100%', maxWidth: '400px', minHeight: '46px' }} onClick={applySuggestedDuration}>
+              {`Übernehmen Ist-Zeit (${Math.max(1, Math.round(elapsedMs / 60000))} Min.)`}
             </button>
           </div>
 
-          <div className="training-coach-nav" style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: '12px', marginBottom: '14px' }}>
-            <button type="button" className="btn btn-secondary" style={{ minHeight: '52px', fontWeight: 700 }} disabled={step <= 0} onClick={goPrev}>
-              ← zurück
-            </button>
-            <button type="button" className="btn btn-secondary" style={{ minHeight: '52px', fontWeight: 700 }} disabled={step >= timeline.length - 1} onClick={goNext}>
-              weiter →
-            </button>
-          </div>
-
-          <div style={{ marginBottom: '16px', display: 'flex', gap: '10px', flexWrap: 'wrap', alignItems: 'center', justifyContent: 'center' }}>
-            <button type="button" className="btn btn-primary" style={{ flex: '1 1 200px', minHeight: '50px', fontWeight: 700 }} onClick={markCurrentDoneAdvance}>
-              Abgeschlossen &amp; weiter
-            </button>
-          </div>
-
-          {unit.trainer_notes && (
-            <div className="card" style={{ marginBottom: '14px', padding: '14px', borderLeft: '4px solid var(--accent)' }}>
-              <div style={{ fontSize: '0.72rem', fontWeight: 700, color: 'var(--text3)', textTransform: 'uppercase' }}>Trainernotiz (dieser Einheit)</div>
-              <p style={{ fontSize: '0.92rem', marginTop: '6px', whiteSpace: 'pre-wrap', color: 'var(--text2)' }}>{unit.trainer_notes}</p>
-            </div>
-          )}
-
-          <div className="card training-coach-debrief" style={{ padding: '14px', marginBottom: '12px', borderRadius: '10px', borderColor: 'var(--border)' }}>
-            <button
-              type="button"
-              className="btn btn-secondary"
-              style={{ width: '100%', textAlign: 'left', justifyContent: 'space-between', display: 'flex', alignItems: 'center' }}
-              onClick={() => setDebriefOpen(!debriefOpen)}
-            >
-              <span style={{ fontWeight: 700 }}>Nachbereitung &amp; speichern</span>
-              <span>{debriefOpen ? '▼' : '▶'}</span>
-            </button>
-            {debriefOpen && (
-              <>
-                <p style={{ fontSize: '0.82rem', color: 'var(--text2)', margin: '14px 0 10px', lineHeight: 1.5 }}>
-                  Übertragene <strong>Ist‑Minuten</strong> (Entwürfe aus dem Timer oder hier anpassen). Beim Speichern werden sie mit dem Plan an den Server geschickt.
-                </p>
-                <div style={{ display: 'flex', flexDirection: 'column', gap: '10px', marginBottom: '12px' }}>
-                  {timeline
-                    .filter((e) => e.item.item_type === 'exercise')
-                    .map((ent) => {
-                      const k = itemStableKey(ent.item, ent.secOrder, ent.ii)
-                      const val = deltas[k]?.actual_duration_min ?? ent.item.actual_duration_min ?? ''
-                      return (
-                        <label key={k} style={{ display: 'grid', gridTemplateColumns: '1fr 88px', gap: '10px', alignItems: 'center', fontSize: '0.88rem' }}>
-                          <span style={{ wordBreak: 'break-word' }}>{summarizeTimelineEntry(ent)}</span>
-                          <input
-                            type="number"
-                            min="0"
-                            className="form-input"
-                            style={{ margin: 0 }}
-                            value={val === '' || val == null ? '' : String(val)}
-                            placeholder="Min"
-                            onChange={(e) => {
-                              const raw = e.target.value
-                              if (raw === '') mergeDelta(setDeltas, k, { actual_duration_min: null })
-                              else mergeDelta(setDeltas, k, { actual_duration_min: parseInt(raw, 10) })
-                            }}
-                          />
-                        </label>
-                      )
-                    })}
-                </div>
-                <label style={{ display: 'block', marginBottom: '10px', fontSize: '0.88rem', color: 'var(--text2)' }}>
-                  Ergänzung Trainer (wird angehängt · mit Zeitstempel)
-                  <textarea className="form-input" rows={3} value={trainerAppend} onChange={(e) => setTrainerAppend(e.target.value)} style={{ marginTop: '6px' }} />
-                </label>
-                <label style={{ display: 'flex', alignItems: 'center', gap: '8px', marginBottom: '12px', fontSize: '0.88rem' }}>
-                  <input type="checkbox" checked={saveMarkDone} onChange={(e) => setSaveMarkDone(e.target.checked)} />
-                  Einheit als <strong>durchgeführt</strong> markieren
-                </label>
-                {saveOk && (
-                  <p
-                    style={{
-                      fontSize: '0.88rem',
-                      marginBottom: '8px',
-                      color: saveOk.startsWith('Fehler') ? 'var(--danger)' : 'var(--accent-dark)',
-                    }}
-                  >
-                    {saveOk}
-                  </p>
-                )}
-                <button type="button" className="btn btn-primary" style={{ width: '100%', minHeight: '48px' }} disabled={saving} onClick={handleSaveDebrief}>
-                  {saving ? 'Speichert…' : 'Speichern'}
-                </button>
-              </>
-            )}
-          </div>
+          <CoachStepNavBar step={step} timelineLength={timeline.length} onPrev={goPrev} onNext={goNext} onDone={markCurrentDoneAdvance} />
         </>
       )}
     </div>