Floating layers and status feedback

Gallery Confirmation Card Bottom Action Panel

Complete the bottom sheet in the gallery confirmation card scenario: includes real content, interactive controls, clear state feedback, and responsive layout.

Floating layers and status feedbackBottom action panelHTMLCSSJavaScript
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    <header class="mast"><div><span class="eyebrow">magazine / Bottom Sheet / BEGINNER</span><h1>Gallery Confirmation Card Bottom Action Panel</h1><p class="intro">Complete the bottom sheet in the gallery confirmation card scenario: includes real content, interactive controls, clear state feedback, and responsive layout.</p></div><span class="scenario">Gallery Confirmation Card</span></header>
    <div class="composition-deck"><div class="deck-bar"><span>CONTROL DECK · 04</span><span>Bottom action panel</span><span class="deck-lights" aria-hidden="true"><i></i><i></i><i></i></span></div><section class="demo" aria-label="Gallery confirmation card bottom action panel interaction area"><section id="evidenceShell" class="evidence-shell" data-board-mode="scan"><header class="evidence-head"><div><span class="eyebrow">Gallery Confirmation Card / EVIDENCE BOARD</span><h2>Bottom action panel observation panel</h2><p>Place the main case into an evidence board, using separate observation cards, logs, and mode-switch records to track the current result.</p></div><div class="evidence-tools"><div class="row"><button class="action primary" type="button" data-board-mode="scan">Scan</button><button class="action" type="button" data-board-mode="proof">Verify</button><button class="action" type="button" data-board-mode="handoff">Handoff</button></div><output id="evidenceStatus">Awaiting Sampling</output></div></header><div class="evidence-body"><section class="evidence-stage"><div class="evidence-ribbon"><button type="button" data-evidence-card="0" aria-pressed="true"><span>01</span><strong>Gallery Confirmation Card Reminder</strong><small>Check whether the status change is visible</small></button><button type="button" data-evidence-card="1" aria-pressed="false"><span>02</span><strong>Gallery Confirmation Card Collection</strong><small>Confirm keyboard and click entry points are consistent</small></button><button type="button" data-evidence-card="2" aria-pressed="false"><span>03</span><strong>Gallery Confirmation Card Overview</strong><small>Check whether the layout falls back on narrow screens</small></button><button type="button" data-evidence-card="3" aria-pressed="false"><span>04</span><strong>Gallery Confirmation Card Plan</strong><small>Record current review conclusion</small></button></div><div id="evidenceCoreShell" class="evidence-core-shell"><div class="workflow-guide"><nav class="guide-rail" aria-label="Gallery confirmation card guide"><span class="eyebrow">Gallery Confirmation Card GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>Gallery confirm card open panel</span></li><li data-workflow-guide-step="1"><b>2</b><span>Gallery Confirmation Card Processing</span></li><li data-workflow-guide-step="2"><b>3</b><span>Gallery confirmation card completion feedback</span></li></ol><div class="guide-actions"><button id="workflowGuideBack" class="action" type="button" disabled>Previous</button><button id="workflowGuideNext" class="action primary" type="button">Complete this step</button></div><div id="workflowGuideProgress" role="progressbar" aria-label="Gallery Confirmation Card Completion" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div></nav><section id="workflowCore" class="workflow-core guide-core" data-guide-step="0" aria-describedby="workflowGuideInstruction"><p id="workflowGuideInstruction">Please complete the relevant actions for “Gallery Confirmation Card Open Panel” in the main case.</p><!-- 11DZ_CORE_START:overlays-feedback-mobile-sheet --><section class="mobile-sheet-demo"><div class="phone-preview"><header><span>Gallery Confirmation Card</span><button id="mobileSheetOpen" type="button" aria-haspopup="dialog" data-core-bridge="overlays-feedback-mobile-sheet">•••<span class="visually-hidden">Open more actions</span></button></header><main><span class="eyebrow">MOBILE SHEET</span><h2>Gallery Confirmation Card Reminder</h2><p>The bottom action panel sits near the thumb reach zone while keeping centered content width on desktop.</p></main><footer><button type="button">Back</button><button type="button">Continue</button></footer></div><dialog id="mobileSheet" aria-labelledby="mobileSheetTitle"><form method="dialog"><div class="sheet-handle" aria-hidden="true"></div><header><div><span class="eyebrow">MORE ACTIONS</span><h2 id="mobileSheetTitle">Choose next step</h2></div><button value="cancel" aria-label="Close bottom action panel">×</button></header><div class="sheet-actions"><button value="Add to favorites"><span aria-hidden="true">☆</span><span><strong>Add to favorites</strong><small>Gallery Confirmation Card Collection</small></span><i aria-hidden="true">›</i></button><button value="Share link"><span aria-hidden="true">↗</span><span><strong>Share link</strong><small>Gallery Confirmation Card Overview</small></span><i aria-hidden="true">›</i></button><button value="Save a copy"><span aria-hidden="true">□</span><span><strong>Save a copy</strong><small>Gallery Confirmation Card Plan</small></span><i aria-hidden="true">›</i></button></div><button class="sheet-cancel" value="cancel">Cancel</button></form></dialog></section><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>View acceptance requirements</summary><ul><li>The gallery confirmation card needs a visible state change to open the panel</li><li>The gallery confirmation card requires one visible state change in progress</li><li>Gallery confirmation card completion feedback needs a visible state change at least once</li></ul></details><form id="workflowGuideEvidenceForm"><label>This step evidence<textarea id="workflowGuideEvidence" rows="3" placeholder="Record the observed state"></textarea></label><input class="action" type="submit" value="Save evidence"></form><output id="workflowGuideSummary">0 / 3 Steps Complete</output></aside></div></div></section><aside class="evidence-rail"><label>Canvas Zoom<input id="evidenceZoom" type="range" min="88" max="128" value="100"><output id="evidenceZoomValue">100%</output></label><label>Current sample<select id="evidenceStep"><option value="0">Gallery Confirmation Card Reminder</option><option value="1">Gallery Confirmation Card Collection</option><option value="2">Gallery Confirmation Card Overview</option><option value="3">Gallery Confirmation Card Plan</option></select></label><ul id="evidenceChecklist" class="evidence-checklist"><li>Gallery Confirmation Card Reminder</li><li>Gallery Confirmation Card Collection</li><li>Gallery Confirmation Card Overview</li><li>Gallery Confirmation Card Plan</li></ul><button id="evidenceCapture" class="action primary" type="button">Write evidence</button><ol id="evidenceLog" class="evidence-log"><li>Evidence not yet entered</li></ol></aside></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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const workflowGuideCore=document.querySelector('#workflowCore');const workflowGuideStages=["Gallery confirm card open panel","Gallery Confirmation Card Processing","Gallery confirmation card completion feedback"];const workflowGuideState={step:0,completed:new Set(),evidence:new Map(),consumedVersion:0};function workflowGuideDrive(){const step=workflowGuideState.step;workflowGuideCore.dataset.guideStep=String(step);document.querySelector('#workflowGuideInstruction').textContent='Please complete the main example ‘'+workflowGuideStages[step]+'Related actions.”';document.querySelectorAll('[data-workflow-guide-step]').forEach((item,index)=>{item.classList.toggle('is-complete',workflowGuideState.completed.has(index));if(index===step)item.setAttribute('aria-current','step');else item.removeAttribute('aria-current');});document.querySelector('#workflowGuideBack').disabled=step===0;document.querySelector('#workflowGuideNext').textContent=step===workflowGuideStages.length-1?'Processed Successfully':'Complete this step';const percent=Math.round(workflowGuideState.completed.size/workflowGuideStages.length*100);const progress=document.querySelector('#workflowGuideProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';document.querySelector('#workflowGuideSummary').textContent=workflowGuideState.completed.size+' / '+workflowGuideStages.length+' Step complete · '+workflowBridgeSummary();announce('Gallery confirm card current step:'+workflowGuideStages[step]);}function workflowGuideAdvance(direction){if(direction>0){const bridge=workflowBridgeActivate();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Please complete the visible state change in the main example first');return;}workflowGuideState.consumedVersion=version;workflowGuideState.completed.add(workflowGuideState.step);announce('Main case changes recorded · '+bridge.summary);}workflowGuideState.step=Math.max(0,Math.min(workflowGuideStages.length-1,workflowGuideState.step+direction));workflowGuideDrive();}document.querySelector('#workflowGuideBack').addEventListener('click',()=>workflowGuideAdvance(-1));document.querySelector('#workflowGuideNext').addEventListener('click',()=>workflowGuideAdvance(1));document.querySelector('#workflowGuideEvidenceForm').addEventListener('submit',event=>{event.preventDefault();const version=Number(workflowGuideCore.dataset.workflowVersion||0);if(version<=workflowGuideState.consumedVersion){announce('Evidence not saved: the main example has no new changes yet');return;}const text=document.querySelector('#workflowGuideEvidence').value.trim();workflowGuideState.evidence.set(workflowGuideState.step,text||'Visible status check completed');workflowGuideState.completed.add(workflowGuideState.step);workflowGuideState.consumedVersion=version;workflowGuideDrive();announce('Evidence for this step has been saved · '+workflowBridgeSummary());});document.querySelector('#workflowGuideDetails').addEventListener('toggle',event=>announce(event.currentTarget.open?'Acceptance requirements expanded':'Acceptance requirements collapsed'));workflowGuideDrive();
workflowBridgeReset();
const evidenceShell=document.querySelector('#evidenceShell');const evidenceStatus=document.querySelector('#evidenceStatus');const evidenceZoom=document.querySelector('#evidenceZoom');const evidenceZoomValue=document.querySelector('#evidenceZoomValue');const evidenceStep=document.querySelector('#evidenceStep');const evidenceChecklistItems=[...document.querySelectorAll('#evidenceChecklist li')];const evidenceCards=[...document.querySelectorAll('[data-evidence-card]')];const evidenceLog=document.querySelector('#evidenceLog');const evidenceModeButtons=[...evidenceShell.querySelectorAll('button[data-board-mode]')];const evidenceNotes=["Gallery Confirmation Card Reminder","Gallery Confirmation Card Collection","Gallery Confirmation Card Overview","Gallery Confirmation Card Plan"];const evidenceCore=document.querySelector('#workflowCore');let evidenceCaptures=0;function evidenceSetCard(index){evidenceCards.forEach((card,cardIndex)=>{const active=cardIndex===index;card.setAttribute('aria-pressed',String(active));});evidenceChecklistItems.forEach((item,itemIndex)=>{item.classList.toggle('is-active',itemIndex===index);item.classList.toggle('is-done',itemIndex<evidenceCaptures);});}function evidenceRender(reason){const version=evidenceCore?.dataset.workflowVersion||'0';const zoom=Number(evidenceZoom.value);const active=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);evidenceShell.style.setProperty('--evidence-zoom',String(zoom));evidenceZoomValue.textContent=zoom+'%';evidenceSetCard(active);evidenceStatus.textContent=reason+' · Core Version '+version;}evidenceModeButtons.forEach(button=>button.addEventListener('click',()=>{evidenceModeButtons.forEach(item=>item.classList.toggle('primary',item===button));evidenceShell.dataset.boardMode=button.dataset.boardMode;evidenceRender('Switched to'+button.textContent);announce('Evidence mode:'+button.textContent);}));evidenceCards.forEach((card,index)=>card.addEventListener('click',()=>{evidenceStep.value=String(index);evidenceRender('Switched to observation card');announce('Observation card:'+evidenceNotes[index]);}));evidenceZoom.addEventListener('input',()=>{evidenceRender('Canvas zoom updated');announce('Observe scaling '+evidenceZoom.value+'%');});evidenceStep.addEventListener('change',()=>{const index=Number(evidenceStep.value)||0;evidenceRender('Sampling switched');announce('Current sample:'+evidenceNotes[index]);});document.querySelector('#evidenceCapture').addEventListener('click',()=>{const index=Math.min(evidenceNotes.length-1,Number(evidenceStep.value)||0);const note=evidenceNotes[index];const version=evidenceCore?.dataset.workflowVersion||'0';evidenceCaptures+=1;const item=document.createElement('li');item.textContent='Evidence '+evidenceCaptures+' · '+note+' · Core Version '+version;const empty=evidenceLog.querySelector('li')?.textContent==='Evidence not yet entered';if(empty)evidenceLog.replaceChildren(item);else evidenceLog.prepend(item);while(evidenceLog.children.length>6)evidenceLog.lastElementChild.remove();evidenceRender('Evidence written '+evidenceCaptures);announce('Evidence written '+evidenceCaptures+' · '+note);});evidenceCore?.addEventListener('focusin',()=>evidenceRender('Main Case Gets Focus'));evidenceCore?.addEventListener('click',()=>evidenceRender('Primary example interaction'));evidenceRender('Awaiting Sampling');
  </script>
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