Focus Tool Skeleton Screen Transition
Complete the skeleton screen transition in a focus tool scenario: includes real content, actionable controls, clear status feedback, and layouts across sizes.
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<title>Focus Tool Skeleton Screen Transition</title>
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:root { --ink:#111111; --paper:#f8f8f4; --accent:#111111; --secondary:#8d8d88; --line:color-mix(in srgb, var(--ink) 18%, transparent); --shadow:0 24px 60px color-mix(in srgb, var(--ink) 16%, transparent); color-scheme:light; }
* { box-sizing:border-box; }
html { min-width:320px; background:var(--paper); }
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button,input,select,textarea { color:inherit; font:inherit; }
button,[role="button"],input,select,textarea { accent-color:var(--accent); }
button { cursor:pointer; }
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
[hidden] { display:none !important; }
@media (max-width:700px) { .mast h1 { line-height:1.08 !important; letter-spacing:-.035em !important; overflow-wrap:anywhere; } }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; } }
.page{width:min(1120px,calc(100% - 30px));margin:auto;padding:48px 0 80px}.mast{display:grid;grid-template-columns:1fr auto;border-top:10px solid var(--ink);padding-top:20px;gap:20px;align-items:end;margin-bottom:26px}.mast h1{font-family:Helvetica,"PingFang SC",sans-serif;font-weight:900;font-size:clamp(44px,10vw,106px);letter-spacing:-.075em;margin:0;line-height:.82}.eyebrow{display:inline-block;margin-bottom:12px;padding:5px 8px;color:var(--paper);background:var(--ink);font:900 10px/1 ui-monospace,monospace;letter-spacing:.14em}.intro{max-width:700px;line-height:1.55}.scenario{padding:9px 12px;border:3px solid var(--ink);font-weight:900}.demo{border:3px solid var(--ink);border-radius:0;box-shadow:12px 12px 0 var(--ink);position:relative;min-height:410px;overflow:hidden;padding:clamp(22px,4vw,46px);background:var(--paper)}@media(max-width:700px){.page{width:calc(100% - 18px);padding:20px 0}.mast{grid-template-columns:1fr}.demo{padding:15px}}
.panel{padding:24px;border-block:1px solid var(--ink);background:transparent}.stack{display:grid;gap:22px}.row{display:flex;flex-wrap:wrap;gap:16px}.action{padding:8px 0;border:0;border-bottom:1px solid currentColor;background:transparent;letter-spacing:.08em}.action.primary,.action.is-active{color:var(--accent);border-bottom-width:4px}.status{min-height:28px;margin-top:20px;font-style:italic}.metric{font-family:Didot,serif;font-size:clamp(38px,8vw,76px)}.muted{max-width:54ch;line-height:1.8}.meter{position:relative;height:3px;background:var(--line)}.meter>i{position:absolute;inset:0 auto 0 0;background:var(--accent)}.chip{padding-bottom:3px;border-bottom:1px solid var(--ink);font-size:13px}
.composition-studio{display:grid;gap:14px}.studio-ruler{display:flex;justify-content:space-between;padding:0 4px;color:color-mix(in srgb,var(--ink) 55%,transparent);font:700 11px/1 ui-monospace,monospace;letter-spacing:.14em}.studio-ruler::before{content:"01 / WORKING PROTOTYPE"}.studio-ruler::after{content:"360 · 768 · 1440"}.composition-studio .demo::after{content:"";position:absolute;right:18px;bottom:18px;width:24px;height:24px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);pointer-events:none}
.skeleton-demo{display:grid;gap:20px;max-width:760px;margin:auto}.skeleton-demo header{display:flex;justify-content:space-between;gap:20px;align-items:end}.skeleton-demo h2{margin:.3em 0}.skeleton-card{display:grid;grid-template-columns:90px 1fr;gap:18px;padding:24px;border:1px solid var(--line);border-radius:18px}.skeleton-avatar,.skeleton-copy i{background:linear-gradient(90deg,var(--line),color-mix(in srgb,var(--paper) 75%,var(--secondary)),var(--line));background-size:220% 100%;animation:skeletonSweep 1.2s ease infinite}.skeleton-avatar{width:90px;aspect-ratio:1;border-radius:50%}.skeleton-copy{display:grid;align-content:center;gap:11px}.skeleton-copy i{display:block;height:16px;border-radius:999px}.skeleton-copy i:nth-child(2){width:82%}.skeleton-copy i:nth-child(3){width:55%}.skeleton-card.is-loaded{grid-template-columns:1fr}.skeleton-card.is-loaded>.skeleton-avatar,.skeleton-card.is-loaded>.skeleton-copy{display:none}.loaded-content{line-height:1.7}@keyframes skeletonSweep{to{background-position:-220% 0}}@media(max-width:520px){.skeleton-demo header{align-items:stretch;flex-direction:column}.skeleton-card{grid-template-columns:60px 1fr}.skeleton-avatar{width:60px}}.workflow-session{display:grid;gap:14px}.session-command{display:grid;grid-template-columns:1fr auto minmax(170px,.45fr) auto;gap:16px;align-items:end;padding:18px;border-block:4px double var(--ink)}.session-command h2{margin:.2em 0}.session-command output{font:900 clamp(28px,5vw,54px)/1 ui-monospace,monospace}.session-command label{display:grid;grid-template-columns:1fr auto;gap:7px;font-size:12px}.session-command input{grid-column:1/-1;width:100%}#workflowSessionProgress{height:12px;overflow:hidden;border-radius:2px;background:var(--line)}#workflowSessionProgress i{display:block;width:0;height:100%;background:var(--accent)}.session-stage{min-width:0;transition:filter .25s,transform .25s}.session-stage[data-session-phase="running"]{transform:translateY(-3px)}.session-stage[data-session-phase="paused"]{filter:grayscale(.65)}.session-stage[data-session-phase="complete"]{filter:contrast(.78);opacity:.72}.session-log{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start}.session-log ol{display:flex;flex-wrap:wrap;gap:7px;padding:0;margin:0;list-style:none}.session-log li{padding:5px 8px;border:1px solid var(--line);font-size:12px}@media(max-width:900px){.session-stage{order:-1}.session-command{grid-template-columns:1fr auto}.session-command label{grid-column:1/-1}.session-log{grid-template-columns:1fr}}
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<main class="page">
<header class="mast"><div><span class="eyebrow">monochrome / skeleton screen transition / ADVANCED</span><h1>Focus Tool Skeleton Screen Transition</h1><p class="intro">Complete the skeleton screen transition in a focus tool scenario: includes real content, actionable controls, clear status feedback, and layouts across sizes.</p></div><span class="scenario">Focus Tool</span></header>
<div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="Focus Tool Skeleton Screen Transition Interactive Area"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Focus Tools SESSION</span><h2>Focus Round Timer Desk</h2></div><output id="workflowSessionClock">00:45</output><label>Round Duration<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>sec</span></label><button id="workflowSessionToggle" class="action primary" type="button">Start Focusing</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Focused round progress" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:animation-microinteractions-skeleton-screen --><div class="skeleton-demo panel"><header><span class="eyebrow">SKELETON SCREEN</span><h2>Focus tool content card</h2><button id="toggleSkeleton" class="action primary" type="button" data-core-bridge="animation-microinteractions-skeleton-screen">Loading content</button></header><article id="skeletonCard" class="skeleton-card" aria-busy="true"><div class="skeleton-avatar"></div><div class="skeleton-copy"><i></i><i></i><i></i></div><div class="loaded-content" hidden><strong>Focus Tool Update Completed</strong><p>Skeleton placeholders are replaced with real content after the local simulated loading ends.</p></div></article></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 interaction checkpoints</strong><ol id="workflowSessionLaps" aria-label="Round Log"></ol></footer></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:animation-microinteractions-skeleton-screen */
const skeletonCard=document.querySelector('#skeletonCard');const toggleSkeleton=document.querySelector('#toggleSkeleton');toggleSkeleton.addEventListener('click',()=>{const loaded=skeletonCard.classList.toggle('is-loaded');skeletonCard.setAttribute('aria-busy',String(!loaded));skeletonCard.querySelector('.loaded-content').hidden=!loaded;toggleSkeleton.textContent=loaded?'Show Skeleton Again':'Loading content';announce(loaded?'Content loading complete':'Skeleton Placeholder Restored');});
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"animation-microinteractions-skeleton-screen","selector":"[data-core-bridge=\"animation-microinteractions-skeleton-screen\"]","mode":"click","key":"Enter"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · Core Version '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("click",workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();workflowBridgeControl.click();const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
const workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' interactive checkpoints';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'Restart':'Continue round';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'Focus round complete':'Round paused');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='Pause round';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('Focus Round Started · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('Keyboard Interaction');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('Core action · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
</script>
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