From 56be3df2046b02c6d32343c20c5ced8a5f290a98 Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Tue, 2 Jan 2024 18:00:25 +0000
Subject: [PATCH] work in progress [might break]

---
 app/helloworld.js    |  17 +-
 app/windowmanager.js | 380 +++++++++++++++++++++++++++++++++++++++----
 com/app.js           | 311 ++++-------------------------------
 3 files changed, 394 insertions(+), 314 deletions(-)

diff --git a/app/helloworld.js b/app/helloworld.js
index 0db7cb5..d9fed91 100644
--- a/app/helloworld.js
+++ b/app/helloworld.js
@@ -3,13 +3,16 @@ AFRAME.registerComponent('helloworld', {
     foo: { type:"string"}
   },
 
-  dependencies:{
+  requires:{
     "html":   "https://unpkg.com/aframe-htmlmesh@2.1.0/build/aframe-html.js",  // html to AFRAME
     "stylis": "https://unpkg.com/stylis@4.3.1/dist/umd/stylis.js"              // modern CSS (https://stylis.js.org)
   },
 
+  dependencies: ['windowmanager'],
+
   dom: {
     scale:   3.5,
+    modal:   true,
     events:  ['click','input'],
     html:    (me) => `
               <div id="${me.el.uid}" class="modal hello">
@@ -41,7 +44,10 @@ AFRAME.registerComponent('helloworld', {
   },
 
   events:{
-    html:  function( ){ console.log("htmlmesh component mounted!")                 },   // html-component was added to this AFRAME entity
+    html:  function( ){ 
+      console.log("html-mesh mounted")
+      this.el.setAttribute("html",`html:#${this.el.uid}; cursor:#cursor`)
+    },   // html-component was added to this AFRAME entity
     click: function(e){ // a click was detected on this.el.dom or AFRAME entity
       let el = e.detail.target || e.detail.srcElement
       if( !el ) return
@@ -53,13 +59,12 @@ AFRAME.registerComponent('helloworld', {
       if(  e.detail.target.id == 'myRange' ) this.data.value = e.detail.target.value // reactive demonstration
     },
     value: function(e){ this.el.dom.querySelector("#value").innerHTML = e.detail.v },   // this.data.title was changed
+    ready: function(){
+    }
   },
 
   init: function () {  
-    this.require( this.dependencies )
-    .then( () => {
-      this.el.setAttribute("html",`html:#${this.el.uid}; cursor:#cursor`)
-    })
+    this.require( this.requires )
   },
 
   manifest: { // HTML5 manifest to identify app to xrsh
diff --git a/app/windowmanager.js b/app/windowmanager.js
index ee615a5..606db5d 100644
--- a/app/windowmanager.js
+++ b/app/windowmanager.js
@@ -1,5 +1,5 @@
 //
-// this is just an AFRAME wrapper for https://golden-layout.com
+// this is just an AFRAME wrapper for golden-layout v2 (docs: https://golden-layout.github.io/golden-layout/)
 //
 //
 
@@ -7,61 +7,77 @@ AFRAME.registerComponent('windowmanager', {
   schema: { 
   },
 
-  dependencies:{
-    "cash":              "https://cdn.jsdelivr.net/npm/cash-dom/dist/cash.min.js", // tiny jquery replacement
-    "goldenlayout":      "https://golden-layout.com/files/latest/js/goldenlayout.min.js",
-    "goldenlayout_css1": "https://golden-layout.com/files/latest/css/goldenlayout-base.css",
-    "goldenlayout_css2": "https://golden-layout.com/files/latest/css/goldenlayout-dark-theme.css"
+  requires:{
+    "goldenlayout_css1": "https://unpkg.com/golden-layout@2.6.0/dist/css/goldenlayout-base.css",
+    "goldenlayout_css2": "https://unpkg.com/golden-layout@2.6.0/dist/css/themes/goldenlayout-dark-theme.css"
+  },
+
+  dom: {
+    events:  [],
+
+    // for stylesheet see bottom of file
+    html:    (me) => `
+              <div id="windowmanager">
+                <div class="modals"></div>
+              </div>`,
+
   },
 
   events:{
     ready: function(){
-      //this.initLayout()
+      this.initLayout(this)
     }
   },
 
   init: function () {  
-    this.require( this.dependencies )
+    this.require( this.requires )
   },
 
   initLayout: async function(){
-   // const goldenlayout_module = "https://cdn.skypack.dev/pin/golden-layout@v2.5.0-dAz3xMzxIRpbnbfEAik0/mode=imports/optimized/golden-layout.js";
-   //   const { ComponentContainer, ComponentItemConfig, GoldenLayout, ItemType } = await import(goldenlayout_module)
+    if( this.goldenLayout !== undefined  || !this.el.dom.querySelector(".modals")) return console.warn("TODO: fix duplicate ready-events")
 
-    this.el.layout = document.createElement('div')
-    document.querySelector("#overlay").appendChild(this.el.layout)
+    let { GoldenLayout } = await import("https://cdn.skypack.dev/pin/golden-layout@v2.5.0-dAz3xMzxIRpbnbfEAik0/mode=imports/optimized/golden-layout.js");
 
-    class MyComponent {
+    class Modal {
         constructor(container) {
             this.container = container;
             this.rootElement = container.element;
-            this.rootElement.innerHTML = '<h2>' + 'Component Type: MyComponent' + '</h2>';
+            this.rootElement.innerHTML = ''
             this.resizeWithContainerAutomatically = true;
         }
     }
-
     const myLayout = {
-        content: [
-          {
-            title: 'Terminal 1',
-            type: 'component',
-            componentType: 'MyComponent',
-            width: 50,
-          },
-          {
-            title: 'My Component 2',
-            type: 'component',
-            componentType: 'MyComponent',
-            // componentState: { text: 'Component 2' }
-          }
-        ]
+        root: {
+            type: 'row',
+            content: [
+                {
+                    title: 'Terminal',
+                    type: 'component',
+                    componentType: 'Modal',
+                    width: 50,
+                },
+                {
+                    title: 'Welcome to XR shell',
+                    type: 'component',
+                    componentType: 'Modal',
+                    // componentState: { text: 'Component 2' }
+                }
+            ]
+        }
     };
 
+    this.goldenLayout = new GoldenLayout( this.el.dom.querySelector('.modals'));
+    this.goldenLayout.registerComponent('Modal', Modal);
+    this.goldenLayout.loadLayout(myLayout);
 
-    const goldenLayout = new GoldenLayout(this.el.layout);
-    goldenLayout.registerComponent( 'MyComponent', MyComponent);
-    goldenLayout.loadLayout(myLayout);
-    goldenLayout.addComponent('MyComponent', undefined, 'Added Component');
+  },
+
+  add: function(title,el){
+    setTimeout( () => {
+      let item = this.goldenLayout.addComponent('Modal', undefined, title )
+      console.dir(item)
+      item.parentItem.contentItems[ item.parentItem.contentItems.length-1 ].element.querySelector('.lm_content').appendChild(el)
+    },1000)
   },
 
   manifest: { // HTML5 manifest to identify app to xrsh
@@ -100,3 +116,301 @@ This is a core XRSH system application
 
 });
 
+// monkeypatching updateProperties will detect a component config like: 
+//   dom: { 
+//     html:   `<h1>Welcome to XR shell</h1>`, 
+//     css:    `#hello {color:red}`,
+//     events: ['click']
+//   }
+// and use it to create a reactive DOM-component (using native javascript Proxy)
+// which delegates all related DOM-events AND data-changes back to the AFRAME component
+AFRAME.AComponent.prototype.updateProperties = function(updateProperties){
+  return function(){
+    updateProperties.apply(this,arguments)
+    if( this.dom && this.data && this.data.uri ){
+
+      tasks = {
+
+        generateUniqueId: () => {
+          this.el.uid = String(Math.random()).substr(2)
+          return tasks
+        },
+
+        ensureOverlay: () => {
+          let overlay = document.querySelector('#overlay')
+          if( !overlay ){
+            overlay = document.createElement('div')
+            overlay.id = "overlay"
+            document.body.appendChild(overlay)
+            document.querySelector("a-scene").setAttribute("webxr","overlayElement:#overlay")
+          }
+          tasks.overlay = overlay
+          return tasks
+        },
+
+        createReactiveDOMElement: () => {
+          const reactify = (el,aframe) => new Proxy(this.data,{
+            get(me,k,v)  { return me[k] },
+            set(me,k,v){
+              me[k] = v
+              aframe.emit(k,{el,k,v})
+            }
+          })
+          this.el.dom = document.createElement('div')
+          this.el.dom.className = this.parseAppURI(this.data.uri).component
+          this.el.dom.innerHTML = this.dom.html(this)
+          this.data = reactify( this.dom.el, this.el )
+          this.dom.events.map( (e) => this.el.dom.addEventListener(e, (ev) => this.el.emit(e,ev) ) )
+          return tasks
+        },
+
+        addCSS: () => {
+          if( this.dom.css && !document.head.querySelector(`style#${this.attrName}`) ){
+            document.head.innerHTML += `<style id="${this.attrName}">${this.dom.css}</style>`
+          }
+          return tasks
+        },
+
+        scaleDOMvsXR: () => {
+          if( this.dom.scale ) this.el.setAttribute('scale',`${this.dom.scale} ${this.dom.scale} ${this.dom.scale}`)
+          return tasks
+        },
+
+        addModalFunctions: () => {
+          this.el.close = () => {
+            this.el.dom.remove()
+            this.el.removeAttribute("html")
+          }
+          this.el.toggleFold = () => {
+            this.el.dom.querySelector(".modal").classList.toggle('fold')
+            this.el.dom.querySelector('.top .fold').innerText = this.el.dom.querySelector('.modal').className.match(/fold/) ? '▢' : '_'
+          }
+          return tasks
+        },
+      }
+
+      tasks
+      .generateUniqueId()
+      .ensureOverlay()
+      .addCSS()
+      .createReactiveDOMElement()
+      .scaleDOMvsXR()
+      .addModalFunctions()
+      // finally lets add the bad boy to the DOM
+      if( this.dom && this.dom.modal ){
+        document.querySelector('[windowmanager]').components['windowmanager'].add( this.parseAppURI(this.data.uri).component, this.el.dom )
+      }else tasks.overlay.appendChild(this.el.dom)
+    }
+  }
+}( AFRAME.AComponent.prototype.updateProperties)
+
+
+//
+// base CSS for XRSH apps 
+//
+// limitations / some guidelines for html-mesh compatibility:
+//   * no icon libraries (favicon e.g.)
+//   * 'border-radius: 2px 3px 4px 5px' (applies 2px to all corners)
+//
+
+document.head.innerHTML += `
+  <style type="text/css">
+
+    :root {
+      --xrsh-primary: #3aacff;
+      --xrsh-primary-fg: #FFF;
+      --xrsh-light-primary: #00a3Ff;
+      --xrsh-secondary: #872eff;
+      --xrsh-third: #ce7df2;
+      --xrsh-box-shadow: #0005;
+      --xrsh-dark-gray: #343334;
+      --xrsh-gray: #424280;
+      --xrsh-white: #fdfdfd;
+      --xrsh-light-gray: #efefef;
+      --xrsh-lighter-gray: #e4e2fb96;
+      --xrsh-font-sans-serif: system-ui, -apple-system, segoe ui, roboto, ubuntu, helvetica, cantarell, noto sans, sans-serif;
+      --xrsh-font-monospace: menlo, monaco, lucida console, liberation mono, dejavu sans mono, bitstream vera sans mono, courier new, monospace, serif;
+      --xrsh-font-size-0: 12px;
+      --xrsh-font-size-1: 14px;
+      --xrsh-font-size-2: 17px;
+      --xrsh-font-size-3: 21px;
+      --xrsh-modal-button-bg: #CCC;
+      --xrsh-modal-button-fg: #FFF;
+    }
+
+    /* CSS reset */
+    html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:0.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace, monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace, monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-0.25em}sup{top:-0.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type="button"],[type="reset"],[type="submit"],button{-webkit-appearance:button}[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:0.35em 0.75em 0.625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type="checkbox"],[type="radio"]{box-sizing:border-box;padding:0}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button{height:auto}[type="search"]{-webkit-appearance:textfield;outline-offset:-2px}[type="search"]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}
+
+    a-scene{
+      position:fixed;
+      top:0;
+      left:0;
+      right:0;
+      bottom:0;
+    }
+    canvas{
+      z-index:10;
+    }
+
+    body,
+    html.a-fullscreen body{  
+      color:       var(--xrsh-dark-gray);
+      font-size:   var(--xrsh-font-size-1); 
+      font-family: var(--xrsh-font-sans-serif);
+      padding:15px;
+      accent-color: var(--xrsh-light-primary);
+    }
+
+    #overlay{
+      display: flex; /* tile modals */
+    }
+             
+    h1,h2,h3,h4,h5{
+      color: var(--xrsh-gray);
+    }
+    h1      {  font-size: var(--xrsh-font-size-3); }
+    h2,h3,h4{  font-size: var(--xrsh-font-size-2); }
+
+    button,.btn,input[type=submit]{
+      border-radius:7px;
+      background: var(--xrsh-primary);
+      color: var(--xrsh-primary-fg); 
+      transition:0.3s;
+      padding: 10px;
+      font-weight: bold;
+      border: none;
+      cursor:pointer;
+    }
+    button:hover,.btn:hover,input[type=submit]:hover{
+      filter: brightness(1.5);
+    }
+
+    .modal{
+      background: transparent;
+      padding: 20px 20px 10px 20px;
+      border-radius: 15px;
+      display: inline-block;
+      position:relative;
+      z-index:50;
+      height:unset;
+      overflow:hidden;
+      margin-left:10px;
+      color: var(--xrsh-light-gray);
+      margin-top:-41px;
+    }
+
+    .modal.fold {
+      height:22px;  
+      overflow:hidden;
+    }
+
+    .modal .top{
+      background: var(--xrsh-light-primary);
+      border-radius:15px;
+      position: absolute;
+      z-index:1;
+      left: 0;
+      right: 0;
+      top: 0;
+      height: 25px;
+      padding: 13px 10px 1px 14px;
+      color: #FFF;
+    }
+
+    /* remove this to see why this is a workaround for border-radius bug */
+    .modal .top .title{
+      position: absolute;
+      background: var(--xrsh-light-primary);
+      display: block;
+      left: 0;
+      right: 0;
+      height: 27px;
+      padding: 0px 0px 0px 20px;
+      font-weight: bold;
+    }
+
+    .modal .top button{
+      padding: 5px 7px;
+      background: var(--xrsh-modal-button-bg);
+      color: var(--xrsh-modal-button-fg);
+      font-weight: bold;
+      float:right;
+    }
+    .modal .top button:hover{
+      filter: brightness(1.1);
+    }
+
+    .modal .top button.close{
+      background: transparent;
+      display: block;
+      font-size: 20px;
+      padding: 0;
+      transform: translate(-4px,-3px) scale(1.5,1);
+      margin-left: 6px;
+    }
+
+    .modal .top button.fold{
+      background: transparent;
+      border: none;
+      margin: 0;
+      margin-left: 30px;
+      transform: scale(1.2) translate(0px,-6px);
+    }
+
+    legend{
+      font-size: var(--xrsh-font-size-0);
+      margin-bottom: 15px;
+      border-bottom: 1px solid var(--xrsh-light-primary);
+    }
+
+    fieldset{
+      border: none;
+      padding: 0;
+      margin: 0;
+      margin-bottom: 0px;
+      margin-bottom: 5px;
+    }
+    label{
+      margin-left:10px;
+    }
+    button,input,.btn{
+      margin-bottom:10px;
+    }
+    [type="checkbox"], [type="radio"]{
+      transform: scale(1.4);
+      margin-left:3px;
+    }
+
+    #windowmanager{
+      display: flex;
+      height: 100%;
+      width: 100%;
+      position:fixed;
+      top:0;
+      left:0;
+      bottom:0;
+      right:0;
+    }
+    .modals{
+      flex: 0 0 auto;
+      height:100%;
+      width:100%;
+      margin-right: 3px;
+    }
+    #windowmanager .lm_content{
+      box-sizing:content-box;
+      border:1px solid #444;
+      background:transparent;
+    }
+    #windowmanager .lm_goldenlayout{
+      background:#000D;
+    }
+    #windowmanager .lm_title{
+      font-family: var(--xrsh-font-sans-serif);
+      font-size:   var(--xrsh-font-size-1);
+      font-weight:bold;
+    }
+}
+
+  </style>
+`
diff --git a/com/app.js b/com/app.js
index 569d24c..43a04b0 100644
--- a/com/app.js
+++ b/com/app.js
@@ -4,38 +4,60 @@ AFRAME.registerComponent('app', {
   schema:{
     "uri":{ type:"string"}
   },
-  init: function() { 
-    let id = this.data.uri.split("/").pop() // 'a/b/c/mycom.js' => 'mycom.js'
-    let component = id.split(".js").shift() // 'mycom.js' => 'mycom'
-    let mount = () => {
+
+  events:{
+    "app:ready": function(){
+      let {id,component,type} = this.parseAppURI(this.data.uri)
       let entity = document.createElement("a-entity")
       this.el.setAttribute(component,this.data)
     }
-    if( AFRAME.components[component] || document.head.querySelector(`script#${id}`) ) mount()
-    else this.require([ this.data.uri ]).then( mount ).catch(console.error)
   },
 
+  init: function() { 
+    let {id,component,type} = this.parseAppURI(this.data.uri)
+    if( AFRAME.components[component] || document.head.querySelector(`script#${id}`) ) this.el.emit('app:ready',{})
+    else this.require([ this.data.uri ], 'app:ready')
+  },
+
+  parseAppURI: AFRAME.AComponent.prototype.parseAppURI = function(uri){
+    return {
+      id:        String(uri).split("/").pop(),                     // 'a/b/c/mycom.js' => 'mycom.js'
+      component: String(uri).split("/").pop().split(".js").shift(), // 'mycom.js' => 'mycom'
+      type:      String(uri).split(".").pop()                      // 'mycom.js' => 'js'
+    }
+  },
 
   // usage: require(["./app/foo.js"])
   //        require({foo: "https://foo.com/foo.js"})
-  require: AFRAME.AComponent.prototype.require = function(packages){
+  require: AFRAME.AComponent.prototype.require = function(packages,readyEvent){
     let deps = []
     if( !packages.map ) packages = Object.values(packages)
     packages.map( (package) => {
       let id = package.split("/").pop()
       if( !document.head.querySelector(`script#${id}`) ){
+        let {id,component,type} = this.parseAppURI(package)
         let p = new Promise( (resolve,reject) => {
-          let script = document.createElement("script")
-          script.id  = id
-          script.src = package
-          script.onload  = () => resolve()
-          script.onerror = (e) => reject(e)
-          document.head.appendChild(script)
+          switch(type){
+            case "js":  let script = document.createElement("script")
+                        script.id  = id
+                        script.src = package
+                        script.onload  = () => resolve()
+                        script.onerror = (e) => reject(e)
+                        document.head.appendChild(script)
+                        break;
+            case "css": let link = document.createElement("link")
+                        link.id  = id
+                        link.href = package
+                        link.rel = 'stylesheet'
+                        document.head.appendChild(link)
+                        resolve()
+                        break;
+          }
         })
         deps.push(p)
       }
     })
-    return Promise.all(deps)
+    Promise.all(deps).then( () => this.el.emit( readyEvent||'ready', packages) )
   }
 
 })
@@ -56,264 +78,3 @@ AFRAME.AComponent.prototype.initComponent = function(initComponent){
 }( AFRAME.AComponent.prototype.initComponent)
 
 
-// monkeypatching updateProperties will detect a component config like: 
-//   dom: { 
-//     html:   `<h1>hello</h1>`, 
-//     css:    `#hello {color:red}`,
-//     events: ['click']
-//   }
-// and use it to create a reactive DOM-component (using native javascript Proxy)
-// which delegates all related DOM-events AND data-changes back to the AFRAME component
-
-AFRAME.AComponent.prototype.updateProperties = function(updateProperties){
-  return function(){
-    updateProperties.apply(this,arguments)
-    if( this.dom && this.data){
-
-      tasks = {
-
-        generateUniqueId: () => {
-          this.el.uid = String(Math.random()).substr(2)
-          return tasks
-        },
-
-        ensureOverlay: () => {
-          let overlay = document.querySelector('#overlay')
-          if( !overlay ){
-            overlay = document.createElement('div')
-            overlay.id = "#overlay"
-            document.body.appendChild(overlay)
-            document.querySelector("a-scene").setAttribute("webxr","overlayElement:#overlay")
-          }
-          tasks.overlay = overlay
-          return tasks
-        },
-
-        createReactiveDOMElement: () => {
-          const reactify = (el,aframe) => new Proxy(this.data,{
-            get(me,k,v)  { return me[k] },
-            set(me,k,v){
-              me[k] = v
-              aframe.emit(k,{el,k,v})
-            }
-          })
-          this.el.dom = document.createElement('div')
-          this.el.dom.innerHTML = this.dom.html(this)
-          this.data = reactify( this.dom.el, this.el )
-          this.dom.events.map( (e) => this.el.dom.addEventListener(e, (ev) => this.el.emit(e,ev) ) )
-          return tasks
-        },
-
-        addCSS: () => {
-          if( this.dom.css && !document.head.querySelector(`style#${this.attrName}`) ){
-            document.head.innerHTML += `<style id="${this.attrName}">${this.dom.css}</style>`
-          }
-          return tasks
-        },
-
-        scaleDOMvsXR: () => {
-          if( this.dom.scale ) this.el.setAttribute('scale',`${this.dom.scale} ${this.dom.scale} ${this.dom.scale}`)
-          return tasks
-        },
-
-        addModalFunctions: () => {
-          this.el.close = () => {
-            this.el.dom.remove()
-            this.el.removeAttribute("html")
-          }
-          this.el.toggleFold = () => {
-            this.el.dom.querySelector(".modal").classList.toggle('fold')
-            this.el.dom.querySelector('.top .fold').innerText = this.el.dom.querySelector('.modal').className.match(/fold/) ? '▢' : '_'
-          }
-          return tasks
-        },
-      }
-
-      tasks
-      .generateUniqueId()
-      .ensureOverlay()
-      .addCSS()
-      .createReactiveDOMElement()
-      .scaleDOMvsXR()
-      .addModalFunctions()
-      // finally lets add the bad boy to the DOM
-      tasks.overlay.appendChild(this.el.dom)
-    }
-  }
-}( AFRAME.AComponent.prototype.updateProperties)
-
-//
-// base CSS for XRSH apps 
-//
-// limitations / some guidelines for html-mesh compatibility:
-//   * no icon libraries (favicon e.g.)
-//   * 'border-radius: 2px 3px 4px 5px' (applies 2px to all corners)
-//
-document.head.innerHTML += `
-  <style type="text/css">
-    /* CSS reset */
-    html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:0.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace, monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace, monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-0.25em}sup{top:-0.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type="button"],[type="reset"],[type="submit"],button{-webkit-appearance:button}[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring,button:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:0.35em 0.75em 0.625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type="checkbox"],[type="radio"]{box-sizing:border-box;padding:0}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button{height:auto}[type="search"]{-webkit-appearance:textfield;outline-offset:-2px}[type="search"]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}
-
-    :root {
-      --xrsh-primary: #3aacff;
-      --xrsh-primary-fg: #FFF;
-      --xrsh-light-primary: #00a3Ff;
-      --xrsh-secondary: #872eff;
-      --xrsh-third: #ce7df2;
-      --xrsh-box-shadow: #0005;
-      --xrsh-dark-gray: #343334;
-      --xrsh-gray: #424280;
-      --xrsh-white: #fdfdfd;
-      --xrsh-light-gray: #efefef;
-      --xrsh-lighter-gray: #e4e2fb96;
-      --xrsh-font-sans-serif: system-ui, -apple-system, segoe ui, roboto, ubuntu, helvetica, cantarell, noto sans, sans-serif;
-      --xrsh-font-monospace: menlo, monaco, lucida console, liberation mono, dejavu sans mono, bitstream vera sans mono, courier new, monospace, serif;
-      --xrsh-font-size-0: 12px;
-      --xrsh-font-size-1: 14px;
-      --xrsh-font-size-2: 17px;
-      --xrsh-font-size-3: 21px;
-      --xrsh-modal-button-bg: #CCC;
-      --xrsh-modal-button-fg: #FFF;
-    }
-
-    a-scene{
-      position:fixed;
-      top:0;
-      left:0;
-      right:0;
-      bottom:0;
-    }
-    canvas{
-      z-index:10;
-    }
-
-    body,
-    html.a-fullscreen body{  
-      color:       var(--xrsh-dark-gray);
-      font-size:   var(--xrsh-font-size-1); 
-      font-family: var(--xrsh-font-sans-serif);
-      padding:15px;
-      accent-color: var(--xrsh-light-primary);
-    }
-
-    #overlay{
-      display: flex; /* tile modals */
-    }
-             
-    h1,h2,h3,h4,h5{
-      color: var(--xrsh-gray);
-    }
-    h1      {  font-size: var(--xrsh-font-size-3); }
-    h2,h3,h4{  font-size: var(--xrsh-font-size-2); }
-
-    button,.btn,input[type=submit]{
-      border-radius:7px;
-      background: var(--xrsh-primary);
-      color: var(--xrsh-primary-fg); 
-      transition:0.3s;
-      padding: 10px;
-      font-weight: bold;
-      border: none;
-      cursor:pointer;
-    }
-    button:hover,.btn:hover,input[type=submit]:hover{
-      filter: brightness(1.5);
-    }
-
-    .modal{
-      background: #f0f0f0;
-      padding: 20px 20px 10px 20px;
-      border-radius: 15px;
-      display: inline-block;
-      position:relative;
-      z-index:50;
-      height:unset;
-      overflow:hidden;
-      margin-left:10px;
-    }
-
-    .modal.fold {
-      height:22px;  
-      overflow:hidden;
-    }
-
-    .modal .top{
-      background: var(--xrsh-light-primary);
-      border-radius:15px;
-      position: absolute;
-      z-index:1;
-      left: 0;
-      right: 0;
-      top: 0;
-      height: 25px;
-      padding: 13px 10px 1px 14px;
-      color: #FFF;
-    }
-
-    /* remove this to see why this is a workaround for border-radius bug */
-    .modal .top .title{
-      position: absolute;
-      background: var(--xrsh-light-primary);
-      display: block;
-      left: 0;
-      right: 0;
-      height: 27px;
-      padding: 0px 0px 0px 20px;
-      font-weight: bold;
-    }
-
-    .modal .top button{
-      padding: 5px 7px;
-      background: var(--xrsh-modal-button-bg);
-      color: var(--xrsh-modal-button-fg);
-      font-weight: bold;
-      float:right;
-    }
-    .modal .top button:hover{
-      filter: brightness(1.1);
-    }
-
-    .modal .top button.close{
-      background: transparent;
-      display: block;
-      font-size: 20px;
-      padding: 0;
-      transform: translate(-4px,-3px) scale(1.5,1);
-      margin-left: 6px;
-    }
-
-    .modal .top button.fold{
-      background: transparent;
-      border: none;
-      margin: 0;
-      margin-left: 30px;
-      transform: scale(1.2) translate(0px,-6px);
-    }
-
-    legend{
-      font-size: var(--xrsh-font-size-0);
-      margin-bottom: 15px;
-      border-bottom: 1px solid var(--xrsh-light-primary);
-    }
-
-    fieldset{
-      border: none;
-      padding: 0;
-      margin: 0;
-      margin-bottom: 0px;
-      margin-bottom: 5px;
-    }
-    label{
-      margin-left:10px;
-    }
-    button,input,.btn{
-      margin-bottom:10px;
-    }
-    [type="checkbox"], [type="radio"]{
-      transform: scale(1.4);
-      margin-left:3px;
-    }
-}
-
-  </style>
-`