work on journal

frontend/src/styles.css

@@ -474,6 +474,75 @@ html, body, #root {
 
 /* ── Node help panel ─────────────────────────────────────── */
 
+.node-help-tabs {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 2px;
+  padding: 6px 8px 0;
+  background: #0a0f1a;
+  border-bottom: 1px solid #1e293b;
+  flex-shrink: 0;
+}
+
+.node-help-fold-btn {
+  background: none;
+  border: none;
+  color: #64748b;
+  font-size: 9px;
+  padding: 0 4px;
+  cursor: pointer;
+  line-height: 1;
+  flex-shrink: 0;
+  align-self: center;
+  transition: color 0.12s;
+}
+.node-help-fold-btn:hover { color: #f1f5f9; }
+
+.node-help-tab {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 4px 8px;
+  border-radius: 5px 5px 0 0;
+  background: #0f172a;
+  border: 1px solid #1e293b;
+  border-bottom: none;
+  cursor: pointer;
+  font-size: 11px;
+  color: #64748b;
+  transition: color 0.12s, background 0.12s;
+  user-select: none;
+  max-width: 160px;
+}
+
+.node-help-tab:hover { color: #94a3b8; background: #162032; }
+
+.node-help-tab.active {
+  color: #f1f5f9;
+  background: #1e293b;
+  border-color: #334155;
+}
+
+.node-help-tab-label {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.node-help-tab-close {
+  background: none;
+  border: none;
+  color: inherit;
+  font-size: 13px;
+  line-height: 1;
+  padding: 0;
+  cursor: pointer;
+  opacity: 0.6;
+  flex-shrink: 0;
+  transition: opacity 0.12s;
+}
+.node-help-tab-close:hover { opacity: 1; }
+
 .node-help-panel {
   position: fixed;
   top: 60px;
@@ -490,35 +559,63 @@ html, body, #root {
   overflow: hidden;
 }
 
-.node-help-panel-header {
+
+.node-help-journal {
+  display: flex;
+  flex-direction: column;
+  flex: 1;
+  min-height: 0;
+}
+
+.node-help-journal-toolbar {
   display: flex;
   align-items: center;
-  justify-content: space-between;
-  padding: 9px 12px;
-  border-bottom: 1px solid #334155;
-  background: #0f172a;
+  gap: 8px;
+  padding: 5px 10px;
+  border-bottom: 1px solid #1e293b;
   flex-shrink: 0;
 }
 
-.node-help-panel-title {
-  font-weight: 600;
-  font-size: 13px;
-  color: #f1f5f9;
-}
-
-.node-help-panel-close {
-  background: none;
-  border: none;
-  color: #64748b;
-  font-size: 20px;
-  line-height: 1;
-  padding: 0 2px;
+.node-help-journal-toggle {
+  background: #0f172a;
+  border: 1px solid #334155;
+  color: #94a3b8;
+  font-size: 11px;
+  padding: 2px 8px;
+  border-radius: 4px;
   cursor: pointer;
-  transition: color 0.12s;
+  transition: color 0.12s, border-color 0.12s;
+}
+.node-help-journal-toggle:hover { color: #f1f5f9; border-color: #475569; }
+
+.node-help-journal-hint {
+  font-size: 10px;
+  color: #475569;
 }
 
-.node-help-panel-close:hover {
-  color: #f1f5f9;
+.node-help-journal-textarea {
+  flex: 1;
+  background: #0d1624;
+  border: none;
+  outline: none;
+  color: #e2e8f0;
+  font-family: monospace;
+  font-size: 12px;
+  line-height: 1.6;
+  padding: 12px 16px;
+  resize: none;
+  min-height: 0;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.node-help-journal-preview {
+  cursor: text;
+}
+
+.node-help-journal-placeholder {
+  color: #475569;
+  font-style: italic;
 }
 
 .node-help-panel-body {
@@ -1652,6 +1749,19 @@ html, body, #root {
 .text-note-color-btn.active {
   border-color: rgba(255,255,255,0.7);
 }
+.text-note-fold-btn {
+  background: none;
+  border: none;
+  color: var(--text-faint);
+  font-size: 9px;
+  padding: 0 3px;
+  cursor: pointer;
+  line-height: 1;
+  flex-shrink: 0;
+  opacity: 0.7;
+  transition: opacity 0.12s;
+}
+.text-note-fold-btn:hover { opacity: 1; }
 .text-note-hint {
   margin-left: auto;
   font-size: 10px;