diff --git a/src/OberleisteApp.jsx b/src/OberleisteApp.jsx
index eedf03c..96c17ec 100644
--- a/src/OberleisteApp.jsx
+++ b/src/OberleisteApp.jsx
@@ -83,51 +83,53 @@ const pillSelect = {
   fontSize: 10,
 }
 
-// BarSelect: Icon-Kompartiment links | Native-Select Mitte | Caret rechts
+// BarSelect: Icon roh links (kein Container) + pill-shaped Native-Select.
+// joinedRight: rechte Pill-Kante flach, fuer Verkettung mit BarButton.
 function BarSelect({ icon, value, onChange, title, disabled, width, children, joinedRight }) {
   return (
     <div title={title} style={{
-      display: 'inline-flex', alignItems: 'center',
-      height: BAR_H, width,
-      background: 'var(--bg-input)',
-      border: '1px solid var(--border-light)',
-      borderRadius: joinedRight ? '4px 0 0 4px' : 4,
-      borderRight: joinedRight ? 'none' : '1px solid var(--border-light)',
-      overflow: 'hidden', position: 'relative',
+      display: 'inline-flex', alignItems: 'center', gap: 5,
       opacity: disabled ? 0.5 : 1, flexShrink: 0,
     }}>
+      {icon && (
+        <Icon name={icon} size={13}
+              style={{ color: 'var(--text-muted)', flexShrink: 0 }} />
+      )}
       <div style={{
-        width: 26, height: '100%',
-        display: 'flex', alignItems: 'center', justifyContent: 'center',
-        background: 'var(--bg-item)',
-        borderRight: '1px solid var(--border-light)',
-        flexShrink: 0,
+        position: 'relative',
+        height: BAR_H, width,
+        background: 'var(--bg-input)',
+        border: '1px solid var(--border-light)',
+        borderTopLeftRadius: 999, borderBottomLeftRadius: 999,
+        borderTopRightRadius: joinedRight ? 0 : 999,
+        borderBottomRightRadius: joinedRight ? 0 : 999,
+        borderRight: joinedRight ? 'none' : '1px solid var(--border-light)',
+        overflow: 'hidden', flexShrink: 0,
       }}>
-        <Icon name={icon} size={13} style={{ color: 'var(--text-muted)' }} />
+        <select
+          value={value || ''}
+          disabled={disabled}
+          onChange={(e) => onChange(e.target.value)}
+          style={{
+            width: '100%', height: '100%', minWidth: 0,
+            background: 'transparent', border: 'none', outline: 'none',
+            padding: '0 22px 0 12px',
+            fontSize: 11, color: 'var(--text-primary)',
+            appearance: 'none', WebkitAppearance: 'none', MozAppearance: 'none',
+            cursor: disabled ? 'not-allowed' : 'pointer',
+          }}
+        >{children}</select>
+        <Icon name="arrow_drop_down" size={14}
+              style={{ position: 'absolute', right: 6, top: '50%',
+                       transform: 'translateY(-50%)',
+                       color: 'var(--text-muted)', pointerEvents: 'none' }} />
       </div>
-      <select
-        value={value || ''}
-        disabled={disabled}
-        onChange={(e) => onChange(e.target.value)}
-        style={{
-          flex: 1, height: '100%', minWidth: 0,
-          background: 'transparent', border: 'none', outline: 'none',
-          padding: '0 18px 0 8px',
-          fontSize: 11, color: 'var(--text-primary)',
-          appearance: 'none', WebkitAppearance: 'none', MozAppearance: 'none',
-          cursor: disabled ? 'not-allowed' : 'pointer',
-        }}
-      >{children}</select>
-      <Icon name="arrow_drop_down" size={14}
-            style={{ position: 'absolute', right: 4, top: '50%',
-                     transform: 'translateY(-50%)',
-                     color: 'var(--text-muted)', pointerEvents: 'none' }} />
     </div>
   )
 }
 
-// BarButton: quadratischer Icon-Button, gleiche Hoehe wie BarSelect.
-// joinedLeft: wenn rechts von einem BarSelect sitzt (kein doppelter Border).
+// BarButton: pill-foermiger Icon-Button. joinedLeft = linke Kante flach,
+// so dass er nahtlos an einen BarSelect-joinedRight andockt.
 function BarButton({ icon, onClick, title, disabled, joinedLeft, active }) {
   return (
     <button onClick={onClick} disabled={disabled} title={title}
@@ -135,7 +137,9 @@ function BarButton({ icon, onClick, title, disabled, joinedLeft, active }) {
         height: BAR_H, width: BAR_H,
         background: active ? 'var(--accent)' : 'var(--bg-input)',
         border: '1px solid var(--border-light)',
-        borderRadius: joinedLeft ? '0 4px 4px 0' : 4,
+        borderTopLeftRadius: joinedLeft ? 0 : 999,
+        borderBottomLeftRadius: joinedLeft ? 0 : 999,
+        borderTopRightRadius: 999, borderBottomRightRadius: 999,
         borderLeft: joinedLeft ? 'none' : '1px solid var(--border-light)',
         display: 'flex', alignItems: 'center', justifyContent: 'center',
         cursor: disabled ? 'not-allowed' : 'pointer',
@@ -204,6 +208,7 @@ export default function OberleisteApp() {
   const [draft, setDraft] = useState('')
   const [customMode, setCustomMode] = useState(false)  // Dropdown -> Custom-Input switch
   const customInputRef = useRef(null)
+  const [aboutOpen, setAboutOpen] = useState(false)
 
   useEffect(() => {
     onMessage('STATE', (s) => {
@@ -291,13 +296,16 @@ export default function OberleisteApp() {
       overflowX: 'auto', overflowY: 'hidden',
       flexShrink: 0,
     }}>
-      {/* Logo: DOSSIER. (Petrol-Punkt) + Launcher-Version */}
-      <div
+      {/* Logo: DOSSIER. (Petrol-Punkt) — Klick = About-Fenster */}
+      <button
+        onClick={() => setAboutOpen(true)}
+        title="Über Dossier"
         style={{
           display: 'flex', alignItems: 'baseline', gap: 8,
           flexShrink: 0, userSelect: 'none',
+          background: 'transparent', border: 'none', padding: 0,
+          cursor: 'pointer', color: 'inherit',
         }}
-        title={`Dossier ${__LAUNCHER_VERSION__} (Plugin ${__APP_VERSION__}) — Teil von OpenStudio`}
       >
         <span style={{
           fontFamily: "Krungthep, 'Archivo Black', sans-serif",
@@ -308,16 +316,7 @@ export default function OberleisteApp() {
         }}>
           DOSSIER<span style={{ color: 'var(--accent)' }}>.</span>
         </span>
-        <span style={{
-          fontFamily: 'DM Mono, monospace',
-          fontSize: 9,
-          letterSpacing: '0.14em',
-          color: 'var(--text-muted)',
-          textTransform: 'uppercase',
-        }}>
-          v{__LAUNCHER_VERSION__}
-        </span>
-      </div>
+      </button>
       <button
         onClick={() => openDossierSettings()}
         title="Dossier-Einstellungen"
@@ -333,9 +332,9 @@ export default function OberleisteApp() {
       </button>
       <div style={sep} />
       {/* ====== VIEW (Top/Front/Right/Iso/Persp + Kamera) ======
-          Kein Group-Label — die Buttons selber kommunizieren ihren Zweck. */}
+          Pill-foermige Toggle-Gruppe, kein Group-Label. */}
       <div style={{ display: 'inline-flex', gap: 0,
-                     border: '1px solid var(--border-light)', borderRadius: 4,
+                     border: '1px solid var(--border-light)', borderRadius: 999,
                      overflow: 'hidden', flexShrink: 0 }}>
         {VIEWS.map((v, idx) => (
           <button
@@ -343,7 +342,7 @@ export default function OberleisteApp() {
             onClick={() => setView(v.value)}
             title={`Ansicht ${v.label}`}
             style={{
-              height: BAR_H, padding: '0 8px',
+              height: BAR_H, padding: '0 10px',
               background: matchView(v.value) ? 'var(--accent)' : 'var(--bg-input)',
               color: matchView(v.value) ? 'var(--bg-panel)' : 'var(--text-primary)',
               border: 'none',
@@ -399,14 +398,14 @@ export default function OberleisteApp() {
       <div style={sep} />
 
       {/* ====== MASSSTAB ====== */}
-      {/* Live-Zoom Chip mit Mass-Icon */}
+      {/* Live-Zoom Chip — pill, accent wenn Massstab anwendbar */}
       <div style={{
         display: 'inline-flex', alignItems: 'center',
-        height: BAR_H, padding: '0 10px',
+        height: BAR_H, padding: '0 12px',
         background: isPerspective ? 'var(--bg-input)' : 'var(--accent)',
         color: isPerspective ? 'var(--text-muted)' : 'var(--bg-panel)',
         border: '1px solid var(--border-light)',
-        borderRadius: 4,
+        borderRadius: 999,
         fontFamily: 'DM Mono, monospace', fontSize: 11, fontWeight: 600,
         minWidth: 64, justifyContent: 'center', flexShrink: 0,
       }} title="Live-Zoom">
@@ -428,8 +427,8 @@ export default function OberleisteApp() {
             height: BAR_H, width: 100,
             background: 'var(--bg-input)',
             border: '1px solid var(--border-light)',
-            borderRadius: 4,
-            padding: '0 8px', fontSize: 11,
+            borderRadius: 999,
+            padding: '0 12px', fontSize: 11,
             fontFamily: 'DM Mono, monospace',
             color: 'var(--text-primary)', outline: 'none',
           }}
@@ -478,113 +477,166 @@ export default function OberleisteApp() {
       {/* ====== STACK: Overrides + Kombi uebereinander ======
           Beide Zeilen haben identisches Spalten-Layout (Label-Spalte fix,
           Dropdown gleich breit), damit Dropdowns vertikal aligned sind.   */}
-      {(() => {
-        const STACK_LABEL_W = 60      // gleich breit fuer beide Zeilen
-        const STACK_DROPDOWN_W = 150
-        const stackLabel = { ...groupLabel, width: STACK_LABEL_W,
-                              padding: 0, textAlign: 'left' }
-        return (
-          <div style={{
-            display: 'flex', flexDirection: 'column', gap: 4,
-            flexShrink: 0,
-          }}>
-            {/* Overrides */}
-            <div style={{ display: 'flex', alignItems: 'center', gap: 6 }}>
-              <span style={stackLabel}>Overrides</span>
-              <ToolButton
-                onClick={() => toggleOverrides(!state.overridesEnabled)}
-                active={state.overridesEnabled}
-                icon="auto_fix_high"
-                label={state.overridesEnabled ? 'AN' : 'AUS'}
-                title={state.overridesEnabled
-                  ? `Grafische Overrides aktiv — klick zum Ausschalten`
-                  : `Grafische Overrides ausgeschaltet`}
-              />
-              <select
-                value={state.overridesActivePreset || '__none__'}
-                onChange={(e) => {
-                  const v = e.target.value
-                  if (v === '__configure__') { openOverridesPanel(); return }
-                  setOverridesPreset(v === '__none__' ? null : v)
-                }}
-                style={{ ...pillSelect, width: STACK_DROPDOWN_W }}
-                title={state.overridesActivePreset
-                  ? `Aktives Preset: ${state.overridesActivePreset} (${state.overridesCount} Regeln)`
-                  : `Kein Preset aktiv (${state.overridesCount} Regeln, frei editiert)`}
-              >
-                <option value="__none__">{state.overridesCount > 0 ? `— (${state.overridesCount} Regeln)` : '—'}</option>
-                {(state.overridesPresets || []).map(name => (
-                  <option key={name} value={name}>{name}</option>
-                ))}
-                <option disabled>──────────</option>
-                <option value="__configure__">Konfigurieren…</option>
-              </select>
-              <ToolButton
-                onClick={openOverridesPanel}
-                icon="settings"
-                title="Overrides-Regel-Editor öffnen"
-              />
-            </div>
-            {/* Kombi */}
-            <div style={{ display: 'flex', alignItems: 'center', gap: 6 }}>
-              <span style={stackLabel}>Kombi</span>
-              <ToolButton
-                onClick={() => {
-                  const suggested = state.layerCombinationActive
-                    || `Kombi ${(state.layerCombinations || []).length + 1}`
-                  const name = (window.prompt('Name für Ebenenkombination:', suggested) || '').trim()
-                  if (!name) return
-                  if ((state.layerCombinations || []).includes(name) &&
-                      !window.confirm(`"${name}" überschreiben?`)) return
-                  saveLayerCombination(name)
-                }}
-                icon="add"
-                title="Aktuelle Sichtbarkeit als neue Kombination speichern"
-              />
-              <select
-                value={state.layerCombinationActive || '__none__'}
-                onChange={(e) => {
-                  const v = e.target.value
-                  if (v === '__configure__') { openLayerCombinationsDialog(); return }
-                  if (v === '__delete__') {
-                    if (state.layerCombinationActive &&
-                        window.confirm(`Kombination "${state.layerCombinationActive}" löschen?`))
-                      deleteLayerCombination(state.layerCombinationActive)
-                    return
-                  }
-                  pickLayerCombination(v === '__none__' ? null : v)
-                }}
-                style={{ ...pillSelect, width: STACK_DROPDOWN_W }}
-                title={state.layerCombinationActive
-                  ? `Aktive Kombi: ${state.layerCombinationActive}`
-                  : 'Keine Kombination — manuelle Sichtbarkeit'}
-              >
-                <option value="__none__">— Eigene —</option>
-                {(state.layerCombinations || []).map(name => (
-                  <option key={name} value={name}>{name}</option>
-                ))}
-                {state.layerCombinationActive && (
-                  <>
-                    <option disabled>──────────</option>
-                    <option value="__delete__">🗑 Aktuelle löschen</option>
-                  </>
-                )}
-                <option disabled>──────────</option>
-                <option value="__configure__">Bearbeiten…</option>
-              </select>
-              <ToolButton
-                onClick={openLayerCombinationsDialog}
-                icon="edit"
-                title="Ebenenkombinationen bearbeiten"
-              />
-            </div>
-          </div>
-        )
-      })()}
+      {/* ====== OVERRIDES ====== */}
+      <BarButton
+        icon="auto_fix_high"
+        active={state.overridesEnabled}
+        onClick={() => toggleOverrides(!state.overridesEnabled)}
+        title={state.overridesEnabled
+          ? 'Grafische Overrides aktiv — klick zum Ausschalten'
+          : 'Grafische Overrides ausgeschaltet'}
+      />
+      <BarSelect
+        icon="palette"
+        value={state.overridesActivePreset || '__none__'}
+        onChange={(v) => {
+          if (v === '__configure__') { openOverridesPanel(); return }
+          setOverridesPreset(v === '__none__' ? null : v)
+        }}
+        title={state.overridesActivePreset
+          ? `Aktives Preset: ${state.overridesActivePreset} (${state.overridesCount} Regeln)`
+          : `Kein Preset aktiv (${state.overridesCount} Regeln, frei editiert)`}
+        width={140}
+        joinedRight
+      >
+        <option value="__none__">{state.overridesCount > 0 ? `— (${state.overridesCount} Regeln)` : '—'}</option>
+        {(state.overridesPresets || []).map(name => (
+          <option key={name} value={name}>{name}</option>
+        ))}
+        <option disabled>──────────</option>
+        <option value="__configure__">Konfigurieren…</option>
+      </BarSelect>
+      <BarButton icon="settings" onClick={openOverridesPanel}
+                  title="Overrides-Regel-Editor öffnen" joinedLeft />
+
+      <div style={sep} />
+
+      {/* ====== EBENEN-KOMBINATIONEN ====== */}
+      <BarSelect
+        icon="layers"
+        value={state.layerCombinationActive || '__none__'}
+        onChange={(v) => {
+          if (v === '__configure__') { openLayerCombinationsDialog(); return }
+          if (v === '__save__') {
+            const suggested = state.layerCombinationActive
+              || `Kombi ${(state.layerCombinations || []).length + 1}`
+            const name = (window.prompt('Name für Ebenenkombination:', suggested) || '').trim()
+            if (!name) return
+            if ((state.layerCombinations || []).includes(name) &&
+                !window.confirm(`"${name}" überschreiben?`)) return
+            saveLayerCombination(name)
+            return
+          }
+          if (v === '__delete__') {
+            if (state.layerCombinationActive &&
+                window.confirm(`Kombination "${state.layerCombinationActive}" löschen?`))
+              deleteLayerCombination(state.layerCombinationActive)
+            return
+          }
+          pickLayerCombination(v === '__none__' ? null : v)
+        }}
+        title={state.layerCombinationActive
+          ? `Aktive Kombi: ${state.layerCombinationActive}`
+          : 'Keine Kombination — manuelle Sichtbarkeit'}
+        width={150}
+        joinedRight
+      >
+        <option value="__none__">— Eigene —</option>
+        {(state.layerCombinations || []).map(name => (
+          <option key={name} value={name}>{name}</option>
+        ))}
+        <option disabled>──────────</option>
+        <option value="__save__">+ Aktuelle speichern…</option>
+        {state.layerCombinationActive && (
+          <option value="__delete__">🗑 Aktuelle löschen</option>
+        )}
+        <option value="__configure__">Bearbeiten…</option>
+      </BarSelect>
+      <BarButton icon="edit" onClick={openLayerCombinationsDialog}
+                  title="Ebenenkombinationen bearbeiten" joinedLeft />
 
       {/* Spacer am rechten Rand */}
       <div style={{ flex: 1 }} />
     </div>
+    {aboutOpen && (
+      <AboutModal onClose={() => setAboutOpen(false)} />
+    )}
+    </div>
+  )
+}
+
+
+function AboutModal({ onClose }) {
+  return (
+    <div
+      onClick={onClose}
+      style={{
+        position: 'fixed', inset: 0, zIndex: 1000,
+        background: 'rgba(0, 0, 0, 0.6)',
+        display: 'flex', alignItems: 'center', justifyContent: 'center',
+      }}
+    >
+      <div
+        onClick={(e) => e.stopPropagation()}
+        style={{
+          minWidth: 360, maxWidth: 420,
+          background: 'var(--bg-panel)',
+          border: '1px solid var(--border)',
+          borderRadius: 8,
+          padding: '24px 28px',
+          boxShadow: '0 12px 48px rgba(0, 0, 0, 0.5)',
+          color: 'var(--text-primary)',
+          fontFamily: 'var(--font)',
+        }}
+      >
+        <div style={{ display: 'flex', alignItems: 'baseline', gap: 8,
+                       marginBottom: 4 }}>
+          <span style={{
+            fontFamily: "Krungthep, 'Archivo Black', sans-serif",
+            fontSize: 28, letterSpacing: '-0.02em', lineHeight: 1,
+          }}>
+            DOSSIER<span style={{ color: 'var(--accent)' }}>.</span>
+          </span>
+        </div>
+        <div style={{ fontSize: 11, color: 'var(--text-muted)',
+                       letterSpacing: '0.06em', textTransform: 'uppercase',
+                       marginBottom: 18 }}>
+          Teil von OpenStudio
+        </div>
+
+        <div style={{ display: 'grid', gridTemplateColumns: 'auto 1fr',
+                       gap: '6px 14px', fontSize: 11, marginBottom: 18 }}>
+          <span style={{ color: 'var(--text-muted)' }}>Launcher</span>
+          <span style={{ fontFamily: 'DM Mono, monospace' }}>v{__LAUNCHER_VERSION__}</span>
+          <span style={{ color: 'var(--text-muted)' }}>Plugin</span>
+          <span style={{ fontFamily: 'DM Mono, monospace' }}>v{__APP_VERSION__}</span>
+          <span style={{ color: 'var(--text-muted)' }}>Autor</span>
+          <span>Karim Gabriele Varano</span>
+          <span style={{ color: 'var(--text-muted)' }}>Website</span>
+          <a href="https://gabrielevarano.ch" target="_blank" rel="noreferrer"
+             style={{ color: 'var(--accent)', textDecoration: 'none' }}>
+            gabrielevarano.ch
+          </a>
+          <span style={{ color: 'var(--text-muted)' }}>Lizenz</span>
+          <span>Proprietär — © 2026 Karim Gabriele Varano</span>
+        </div>
+
+        <div style={{ fontSize: 10, color: 'var(--text-muted)',
+                       lineHeight: 1.5, marginBottom: 18,
+                       paddingTop: 12,
+                       borderTop: '1px solid var(--border-light)' }}>
+          Rhino 8 Plugin für architektonische Workflows — Wände, Decken,
+          Öffnungen, Räume, SIA 416, Plan-Layouts. Schwester-App: Rapport.
+        </div>
+
+        <div style={{ display: 'flex', justifyContent: 'flex-end' }}>
+          <button
+            onClick={onClose}
+            className="btn-contained"
+            style={{ padding: '6px 18px', fontSize: 11 }}
+          >Schliessen</button>
+        </div>
+      </div>
     </div>
   )
 }