global tooltip system, migrate all title attrs to data-tip/data-help

New tooltip.js module with styled tooltips (data-tip) and multi-line
inline help (data-help). Migrates all ~70 native title attributes
across index.php, JS modules, and all plugins. Adds inline help on
9 strategic UI elements (split, superview, zen, extract, assets, etc).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

public/js/app.js

@@ -13,6 +13,7 @@ import { openModal, closeModal, saveCard, saveOnly, openFindBar } from './module
 import { openSearch, closeSearch } from './modules/search.js';
 import { showContextMenu } from './modules/context-menu.js';
 import { undo, canUndo } from './modules/undo.js';
+import './modules/tooltip.js';
 import { registerShortcut, guards, renderShortcutHelp } from './modules/shortcuts.js';
 import { openGallery, closeGallery } from './modules/gallery.js';
 import { refreshTasksView, openTasks, closeTasks } from './modules/tasks.js';

public/js/modules/buckets.js

@@ -294,11 +294,11 @@ function renderBar() {
     // render (e.g. bucket reorder, plain renderBar() call).
     const allUnread = state.activeBucket !== 'all' && state.unseenCardIds.size > 0;
     bar.innerHTML = `
-        <button class="${tab(state.activeBucket === 'all')}${allUnread ? ' has-unread' : ''}" data-bucket="all" title="all"><i class="ph ph-squares-four text-sm"></i>${allUnread ? '<span class="bar-unread-dot"></span>' : ''}</button>
-        <button class="${tab(state.activeBucket === 'current')}" data-bucket="current" title="current"><i class="ph ph-lightning text-sm"></i></button>
-        <button class="${tab(state.activeBucket === 'favorites')}" data-bucket="favorites" title="favorites"><i class="ph ph-star text-sm"></i></button>
-        <button class="${tab(state.activeBucket === 'journal')}" data-bucket="journal" title="journal"><i class="ph ph-notebook text-sm"></i></button>
-        <button class="${tab(state.activeBucket === 'none')}" data-bucket="none" title="unsorted"><i class="ph ph-tray text-sm"></i></button>
+        <button class="${tab(state.activeBucket === 'all')}${allUnread ? ' has-unread' : ''}" data-bucket="all" data-tip="all"><i class="ph ph-squares-four text-sm"></i>${allUnread ? '<span class="bar-unread-dot"></span>' : ''}</button>
+        <button class="${tab(state.activeBucket === 'current')}" data-bucket="current" data-tip="current"><i class="ph ph-lightning text-sm"></i></button>
+        <button class="${tab(state.activeBucket === 'favorites')}" data-bucket="favorites" data-tip="favorites"><i class="ph ph-star text-sm"></i></button>
+        <button class="${tab(state.activeBucket === 'journal')}" data-bucket="journal" data-tip="journal"><i class="ph ph-notebook text-sm"></i></button>
+        <button class="${tab(state.activeBucket === 'none')}" data-bucket="none" data-tip="unsorted"><i class="ph ph-tray text-sm"></i></button>
         ${topLevel.map(b => {
             const kids = childrenOf(b.id);
             const isSuper = kids.length > 0;
@@ -400,7 +400,7 @@ function renderBar() {
             const c = m.color || '#64748b';
             const active = state.activeBucket == m.id || (!members.some(x => x.id == state.activeBucket) && lastId == m.id);
             const isParent = m.id === parentId;
-            return `<button class="bucket-tab ${active ? 'active' : ''} flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors w-full" data-bucket="${m.id}" draggable="true" data-bucket-drag="${m.id}" style="border-left:3px solid ${c};${active ? `background:${c};color:var(--t-bg);border-color:${c}` : ''}"><i class="ph ph-folder text-sm"></i><span class="font-pixel text-[10px] flex-1 text-left">${esc(m.name)}</span>${isParent ? '<i class="ph ph-house text-[10px] opacity-60" title="parent"></i>' : ''}</button>`;
+            return `<button class="bucket-tab ${active ? 'active' : ''} flex items-center gap-1.5 px-2.5 py-1 text-xs border border-t-border text-t-muted hover:border-t-accent hover:text-t-accent transition-colors w-full" data-bucket="${m.id}" draggable="true" data-bucket-drag="${m.id}" style="border-left:3px solid ${c};${active ? `background:${c};color:var(--t-bg);border-color:${c}` : ''}"><i class="ph ph-folder text-sm"></i><span class="font-pixel text-[10px] flex-1 text-left">${esc(m.name)}</span>${isParent ? '<i class="ph ph-house text-[10px] opacity-60" data-tip="parent"></i>' : ''}</button>`;
         };
         pop.innerHTML = members.map(renderEntry).join('');
         // Append inside #bucket-bar (not document.body) so the collab

public/js/modules/caldav.js

@@ -76,7 +76,7 @@ function renderCalList(calendars) {
                 ${CAL_COLORS.map(c => `<button class="cal-cfg-color" data-color="${c}" style="width:14px;height:14px;border-radius:2px;background:${c};border:2px solid ${c === activeColor ? 'var(--t-bright)' : 'transparent'};cursor:pointer;"></button>`).join('')}
             </div>
             <div class="flex gap-1 ml-1">
-                ${CAL_ICONS.slice(0, 6).map(ic => `<button class="cal-cfg-icon" data-icon="${ic.id}" title="${ic.label}" style="font-size:12px;cursor:pointer;padding:1px;border-radius:2px;${ic.id === activeIcon ? 'color:var(--t-accent);' : 'color:var(--t-dim);'}"><i class="ph ph-${ic.id}"></i></button>`).join('')}
+                ${CAL_ICONS.slice(0, 6).map(ic => `<button class="cal-cfg-icon" data-icon="${ic.id}" data-tip="${ic.label}" style="font-size:12px;cursor:pointer;padding:1px;border-radius:2px;${ic.id === activeIcon ? 'color:var(--t-accent);' : 'color:var(--t-dim);'}"><i class="ph ph-${ic.id}"></i></button>`).join('')}
             </div>
         </div>`;
     }).join('');

public/js/modules/detail.js

@@ -433,7 +433,7 @@ function renderSidebar(card) {
                 <span class="w-2 h-2 rounded-full shrink-0" style="background:${gc.color}"></span>
                 ${img ? `<span class="w-6 h-6 rounded-full shrink-0 bg-cover bg-center border border-t-border" style="background-image:url('${img}')"></span>` : ''}
                 <span class="font-pixel text-[10px] ${active ? 'text-t-bright' : 'text-t-muted'} truncate flex-1">${esc(gc.title)}</span>
-                <button onclick="event.stopPropagation();window._ungroupCard(${gc.id})" class="text-t-dim hover:text-t-danger transition-colors shrink-0 ${gc.id == groupCards[0]?.id ? 'invisible' : ''}" title="ungroup">
+                <button onclick="event.stopPropagation();window._ungroupCard(${gc.id})" class="text-t-dim hover:text-t-danger transition-colors shrink-0 ${gc.id == groupCards[0]?.id ? 'invisible' : ''}" data-tip="ungroup">
                     <i class="ph ph-x text-[10px]"></i>
                 </button>
             </div>`;
@@ -554,7 +554,7 @@ function applyReadingResizeHandles(root) {
         const line = document.createElement('button');
         line.type = 'button';
         line.className = 'detail-font-dragline';
-        line.title = 'drag to resize text';
+        line.dataset.tip = 'drag to resize text';
         line.setAttribute('aria-label', 'resize text');
         el.appendChild(line);
 
@@ -615,7 +615,7 @@ export function bindDetailImageFullscreen(root) {
     // Regular images: double-click, no gallery nav
     root.querySelectorAll('img').forEach(img => {
         if (img.closest('.md-gallery')) return;
-        img.title = 'double-click to open fullscreen';
+        img.dataset.tip = 'double-click to fullscreen';
         img.addEventListener('dblclick', e => {
             e.preventDefault();
             e.stopPropagation();
@@ -898,7 +898,7 @@ function loadSplitCard(id) {
         <button id="split-back" class="flex items-center gap-1.5 flex-1 px-3 py-2 text-xs text-t-muted hover:text-t-accent hover:bg-t-raised transition-colors">
             <i class="ph ph-arrow-left text-sm"></i><span class="font-pixel text-[10px]">${splitLastQuery ? 'results' : 'related cards'}</span>
         </button>
-        <button id="split-promote" class="flex items-center gap-1.5 px-3 py-2 text-xs text-t-muted hover:text-t-accent hover:bg-t-raised transition-colors" title="open as main card">
+        <button id="split-promote" class="flex items-center gap-1.5 px-3 py-2 text-xs text-t-muted hover:text-t-accent hover:bg-t-raised transition-colors" data-tip="open as main card">
             <i class="ph ph-arrow-line-left text-sm"></i><span class="font-pixel text-[10px]">Focus</span>
         </button>
     </div>`;

public/js/modules/editor.js

@@ -102,7 +102,7 @@ function startCloseMorph() {
 
 CARD_COLORS.forEach(c => {
     const btn = document.createElement('button');
-    btn.type = 'button'; btn.title = c.name;
+    btn.type = 'button'; btn.dataset.tip = c.name;
     btn.dataset.color = c.hex;
     btn.className = 'w-5 h-5 rounded-sm border-2 border-transparent transition-all hover:scale-125 color-swatch';
     btn.style.background = c.hex;
@@ -1243,13 +1243,13 @@ $('md-asset-picker')?.addEventListener('click', async () => {
             const type = assetType(f.name);
             const label = f.name.replace(/\.[^.]+$/, '');
             if (type === 'image') {
-                return `<div class="asset-pick-tile" data-url="${esc(f.url)}" data-name="${esc(f.name)}" data-type="image" title="${esc(f.name)}" style="cursor:pointer;border-radius:4px;overflow:hidden;aspect-ratio:1;background:var(--t-bg);border:1px solid var(--t-border);">
+                return `<div class="asset-pick-tile" data-url="${esc(f.url)}" data-name="${esc(f.name)}" data-type="image" data-tip="${esc(f.name)}" style="cursor:pointer;border-radius:4px;overflow:hidden;aspect-ratio:1;background:var(--t-bg);border:1px solid var(--t-border);">
                     <img src="${esc(f.url)}" style="width:100%;height:100%;object-fit:cover;" loading="lazy">
                 </div>`;
             }
             const icon = type === 'audio' ? 'ph-music-note' : type === 'pdf' ? 'ph-file-pdf' : 'ph-file';
             const iconColor = type === 'pdf' ? 'color:var(--t-danger)' : 'color:var(--t-dim)';
-            return `<div class="asset-pick-tile" data-url="${esc(f.url)}" data-name="${esc(f.name)}" data-type="${type}" title="${esc(f.name)}" style="cursor:pointer;border-radius:4px;overflow:hidden;aspect-ratio:1;background:var(--t-bg);border:1px solid var(--t-border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:4px;">
+            return `<div class="asset-pick-tile" data-url="${esc(f.url)}" data-name="${esc(f.name)}" data-type="${type}" data-tip="${esc(f.name)}" style="cursor:pointer;border-radius:4px;overflow:hidden;aspect-ratio:1;background:var(--t-bg);border:1px solid var(--t-border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:4px;">
                 <i class="ph ${icon}" style="font-size:20px;${iconColor}"></i>
                 <span style="font-size:7px;color:var(--t-muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:var(--t-font-pixel,'Silkscreen',monospace);">${esc(label)}</span>
             </div>`;

public/js/modules/gallery.js

@@ -170,9 +170,9 @@ export async function openGallery() {
                     <div class="relative">
                         ${mediaTile(f.url, 'border-t-danger/30 opacity-60')}
                         <div style="position:absolute;top:4px;right:4px;display:flex;gap:4px;" class="opacity-0 group-hover:opacity-100 transition-opacity">
-                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-accent rounded border-0 cursor-pointer hover:bg-t-accent hover:text-t-bg transition-colors" data-new-orphan="${f.name}" title="new card"><i class="ph ph-plus text-sm"></i></button>
-                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-accent rounded border-0 cursor-pointer hover:bg-t-accent hover:text-t-bg transition-colors" data-new-slide="${f.name}" title="new slide (background)"><i class="ph ph-image-square text-sm"></i></button>
-                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-danger rounded border-0 cursor-pointer hover:bg-t-danger hover:text-t-bg transition-colors" data-del-orphan="${f.name}" title="delete"><i class="ph ph-trash text-sm"></i></button>
+                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-accent rounded border-0 cursor-pointer hover:bg-t-accent hover:text-t-bg transition-colors" data-new-orphan="${f.name}" data-tip="new card"><i class="ph ph-plus text-sm"></i></button>
+                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-accent rounded border-0 cursor-pointer hover:bg-t-accent hover:text-t-bg transition-colors" data-new-slide="${f.name}" data-tip="new slide"><i class="ph ph-image-square text-sm"></i></button>
+                            <button class="w-6 h-6 flex items-center justify-center bg-black/80 text-t-danger rounded border-0 cursor-pointer hover:bg-t-danger hover:text-t-bg transition-colors" data-del-orphan="${f.name}" data-tip="delete"><i class="ph ph-trash text-sm"></i></button>
                         </div>
                     </div>
                     <div class="mt-1 font-pixel text-[8px] text-t-dim truncate">${esc(f.name)}</div>

public/js/modules/markdown.js

@@ -146,7 +146,7 @@ export function renderMd(src) {
     const linked = processed.replace(/\[\[([^\]]+)\]\]/g, (_, title) => {
         const card = state.cards.find(c => c.title.toLowerCase() === title.toLowerCase());
         if (card) return `<span class="card-link" data-card-id="${card.id}">${esc(title)}</span>`;
-        return `<span class="card-link broken" title="card not found">${esc(title)}</span>`;
+        return `<span class="card-link broken" data-tip="card not found">${esc(title)}</span>`;
     });
 
     let html = marked.parse(linked);

public/js/modules/notifications.js

@@ -73,7 +73,7 @@ export function render() {
             <span>${esc(i.label)}</span>
             ${i.dismissable !== false ? `<button class="upcoming-dismiss" data-dismiss="${i.id}"><i class="ph ph-x text-xs"></i></button>` : ''}
         </div>`).join('')}
-        <button id="dismiss-all" class="shrink-0 ml-auto text-t-dim hover:text-t-danger transition-colors" title="dismiss all"><i class="ph ph-x-circle text-sm"></i></button>
+        <button id="dismiss-all" class="shrink-0 ml-auto text-t-dim hover:text-t-danger transition-colors" data-tip="dismiss all"><i class="ph ph-x-circle text-sm"></i></button>
     </div>`;
 
     banner.querySelectorAll('[data-notif-id]').forEach(el => {

public/js/modules/tooltip.js

@@ -0,0 +1,91 @@
+// ── Global tooltip system ──
+// Replaces native title="" with styled tooltips. Supports:
+//   data-tip="short text"        — single-line tooltip (replaces title)
+//   data-help="line1\nline2"     — multi-line inline help (shown on hover)
+
+const SHOW_DELAY = 400;
+const HIDE_DELAY = 100;
+const OFFSET = 8;
+
+let tipEl = null;
+let showTimer = null;
+let hideTimer = null;
+let currentTarget = null;
+
+function create() {
+    if (tipEl) return;
+    tipEl = document.createElement('div');
+    tipEl.id = 'tooltip';
+    tipEl.setAttribute('role', 'tooltip');
+    document.body.appendChild(tipEl);
+}
+
+function show(target) {
+    clearTimeout(hideTimer);
+    if (currentTarget === target) return;
+    currentTarget = target;
+    create();
+
+    const tip = target.dataset.tip || '';
+    const help = target.dataset.help || '';
+    if (!tip && !help) { hide(); return; }
+
+    if (help) {
+        tipEl.classList.add('tooltip-help');
+        tipEl.innerHTML = help.replace(/\\n/g, '<br>');
+    } else {
+        tipEl.classList.remove('tooltip-help');
+        tipEl.textContent = tip;
+    }
+
+    tipEl.style.visibility = 'hidden';
+    tipEl.style.display = 'block';
+
+    const rect = target.getBoundingClientRect();
+    const tipRect = tipEl.getBoundingClientRect();
+
+    let top, left;
+    const spaceBelow = window.innerHeight - rect.bottom;
+    const spaceAbove = rect.top;
+
+    if (spaceBelow >= tipRect.height + OFFSET || spaceBelow >= spaceAbove) {
+        top = rect.bottom + OFFSET;
+        tipEl.classList.remove('tooltip-above');
+    } else {
+        top = rect.top - tipRect.height - OFFSET;
+        tipEl.classList.add('tooltip-above');
+    }
+
+    left = rect.left + rect.width / 2 - tipRect.width / 2;
+    left = Math.max(8, Math.min(left, window.innerWidth - tipRect.width - 8));
+    top = Math.max(4, top);
+
+    tipEl.style.top = top + 'px';
+    tipEl.style.left = left + 'px';
+    tipEl.style.visibility = '';
+}
+
+function hide() {
+    currentTarget = null;
+    if (tipEl) tipEl.style.display = 'none';
+}
+
+function onEnter(e) {
+    const target = e.target.closest('[data-tip],[data-help]');
+    if (!target) return;
+    clearTimeout(hideTimer);
+    showTimer = setTimeout(() => show(target), SHOW_DELAY);
+}
+
+function onLeave(e) {
+    const target = e.target.closest('[data-tip],[data-help]');
+    if (!target) return;
+    clearTimeout(showTimer);
+    hideTimer = setTimeout(hide, HIDE_DELAY);
+}
+
+document.addEventListener('pointerenter', onEnter, true);
+document.addEventListener('pointerleave', onLeave, true);
+document.addEventListener('pointerdown', () => { clearTimeout(showTimer); hide(); }, true);
+document.addEventListener('keydown', () => { clearTimeout(showTimer); hide(); }, true);
+document.addEventListener('scroll', () => { clearTimeout(showTimer); hide(); }, true);