diff --git a/debian/changelog b/debian/changelog
index 3a2a50cf..36fc6419 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-hedera-web (1.407.78) stable; urgency=low
+hedera-web (1.407.79) stable; urgency=low
 
   * Initial Release.
 
diff --git a/forms/ecomerce/catalog/catalog.js b/forms/ecomerce/catalog/catalog.js
index 71aa2a21..74ae04f9 100644
--- a/forms/ecomerce/catalog/catalog.js
+++ b/forms/ecomerce/catalog/catalog.js
@@ -105,6 +105,8 @@ Hedera.Catalog = new Class({
 
 		for (const tag of tags)
 			$[`${tag}s`].lot = this.getFilter(params, tags, tag);
+
+		if (lot) this.hideMenu();
 	}
 	
 	,refreshTitle: function() {
diff --git a/forms/ecomerce/catalog/style.css b/forms/ecomerce/catalog/style.css
index 56b00e37..31aa4498 100644
--- a/forms/ecomerce/catalog/style.css
+++ b/forms/ecomerce/catalog/style.css
@@ -4,6 +4,9 @@
 .title ._subtitle {
 	font-size: .7rem;
 	color: #bbb;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	overflow: hidden;
 }
 
 /* Right panel */
@@ -78,10 +81,10 @@
 	width: 25%;
 	padding: .6em;
 	box-sizing: border-box;
+	border-radius: 50%;
 }
 .right-panel .realms a:hover {
 	background-color: rgba(1, 1, 1, .05);
-	border-radius: .15em;
 }
 .right-panel .realms a > img {
 	display: block;
@@ -98,12 +101,9 @@
 	display: flex;
 	box-sizing: border-box;
 }
-.item-box > htk-image {
+.item-box > .htk-image {
 	flex: none;
 }
-.item-box > htk-image:hover {
-	background-color: transparent;
-}
 .item-box > .item-info {
 	flex: auto;
 	position: relative;
@@ -212,8 +212,8 @@
 	background-color: white;
 
 	flex-direction: column;
-	width: 240px;
-	height: 410px;
+	width: 260px;
+	height: 425px;
 	overflow: hidden;
 }
 .grid-view .item-box:hover {
@@ -223,8 +223,8 @@
 	margin: 10px;
 }
 .grid-view .item-box > .htk-image {
-	width: 240px;
-	height: 240px;
+	width: 260px;
+	height: 260px;
 }
 .grid-view .item-box > .item-info {
 	flex: auto;
@@ -254,7 +254,7 @@
 	gap: 10px;
 	margin: 0;
 	padding: 10px;
-	height: 120px;
+	height: 130px;
 	overflow: visible;
 	border-bottom: 1px solid #DDD;
 }
@@ -262,15 +262,15 @@
 	border-bottom: none;
 }
 .list-view .item-box > .htk-image {
-	width: 100px;
-	height: 100px;
+	width: 110px;
+	height: 110px;
 	border-radius: 50%;
 }
 .list-view .item-info {
 	overflow: hidden;
 }
 .list-view .item-info > h2 {
-	font-size: 1em;
+	font-size: 1rem;
 	white-space: nowrap;
 }
 .list-view .item-info > .color {
diff --git a/js/hedera/gui.scss b/js/hedera/gui.scss
index d9f73906..e78c9721 100644
--- a/js/hedera/gui.scss
+++ b/js/hedera/gui.scss
@@ -49,9 +49,9 @@ $navbar-height: 64px;
 			flex: auto;
 			display: flex;
 			align-items: center;
-			gap: 15px;
+			gap: 12px;
 			overflow: hidden;
-			padding-left: 15px;
+			padding-left: 12px;
 
 			& > .title {
 				overflow: hidden;
@@ -74,9 +74,9 @@ $navbar-height: 64px;
 				height: 100%;
 				display: flex;
 				align-items: center;
-				padding-right: $spacing-md;
-				padding-left: $spacing-sm;
-				gap: .5em;
+				padding-right: 12px;
+				padding-left: 4px;
+				gap: 2px;
 
 				& > * {
 					float: right;
@@ -84,7 +84,7 @@ $navbar-height: 64px;
 			}
 			button {
 				margin: 0;
-				padding: 10px 15px;
+				padding: 8px 13px;
 
 				&:hover {
 					background-color: rgba(2550, 255, 255, .2);
@@ -305,7 +305,7 @@ $navbar-height: 64px;
 
 	@media (max-width: 960px) {
 		& > .navbar {
-			padding-left: 16px;
+			padding-left: 12px;
 			left: 0;
 
 			& > .menu-button {
@@ -313,7 +313,7 @@ $navbar-height: 64px;
 			}
 			& > .action-bar {
 				button {
-					padding: 10px;
+					padding: 8px;
 				}
 				span.label,
 				button > .text {
diff --git a/js/htk/calendar/index.js b/js/htk/calendar/index.js
index 4d6b542d..aeaeb569 100644
--- a/js/htk/calendar/index.js
+++ b/js/htk/calendar/index.js
@@ -21,9 +21,7 @@ module.exports = new Class({
 	,month: null
 
 	,render: function() {
-		var len = Vn.Date.WDays.length;
-		
-		var node = this.createRoot('div');
+		this.createRoot('div');
 		
 		var table = this.createElement('table');
 		this.node.appendChild(table);
@@ -31,6 +29,7 @@ module.exports = new Class({
 		var colgroup = this.createElement('colgroup');
 		table.appendChild(colgroup);
 		
+		var len = Vn.Date.WDays.length;
 		for (var i = 0; i < len; i++)
 			colgroup.appendChild(this.createElement('col'));
 		
diff --git a/js/htk/columns/button/style.scss b/js/htk/columns/button/style.scss
index 787ca01d..d56f10d6 100644
--- a/js/htk/columns/button/style.scss
+++ b/js/htk/columns/button/style.scss
@@ -11,8 +11,6 @@ td.cell-button {
 		height: 44px;
 		width: 44px;
 		margin: 0 auto;
-		border-radius: 50%;
-		padding: 10px;
 		border: none;
 		background-color: transparent;
 		box-sizing: border-box;
diff --git a/js/htk/loader/index.js b/js/htk/loader/index.js
index 89edfbc0..dd6d8b19 100644
--- a/js/htk/loader/index.js
+++ b/js/htk/loader/index.js
@@ -2,8 +2,8 @@ require('./style.scss');
 var Component = require('vn/component');
 
 module.exports = new Class({
-	Tag: 'htk-loader'
-	,Extends: Component
+	Extends: Component
+	,Tag: 'htk-loader'
 	,Properties: {
 		form: {
 			type: Db.Form
diff --git a/js/htk/popup/index.js b/js/htk/popup/index.js
index 4ab0e3b9..fa461ad3 100644
--- a/js/htk/popup/index.js
+++ b/js/htk/popup/index.js
@@ -91,7 +91,7 @@ module.exports = new Class({
 			bg.addEventListener('mousedown', this._bgMouseDownHandler);
 			Htk.Toast.pushTop(bg);
 
-			Vn.Node.addClass(this.node, 'modal');
+			this.node.classList.add('modal');
 			bg.appendChild(this.node);
 
 			this.doc.body.appendChild(bg);
@@ -125,26 +125,23 @@ module.exports = new Class({
 		style.height = '';
 		style.width = '';
 
-		var margin = 20;
-		var dblMargin = margin * 2;
-		var width = node.offsetWidth;
-		var height = node.offsetHeight;
-		var innerWidth = window.innerWidth;
-		var innerHeight = window.innerHeight;
+		if (!this.isModal()) {
+			var margin = 20;
+			var dblMargin = margin * 2;
+			var width = node.offsetWidth;
+			var height = node.offsetHeight;
+			var innerWidth = window.innerWidth;
+			var innerHeight = window.innerHeight;
+	
+			if (width + dblMargin > innerWidth) {
+				width = innerWidth - dblMargin;
+				style.width = width +'px';
+			}
+			if (height + dblMargin > innerHeight) {
+				height = innerHeight - dblMargin;
+				style.height = height +'px';
+			}
 
-		if (width + dblMargin > innerWidth) {
-			width = innerWidth - dblMargin;
-			style.width = width +'px';
-		}
-		if (height + dblMargin > innerHeight) {
-			height = innerHeight - dblMargin;
-			style.height = height +'px';
-		}
-		
-		if (this.isModal()) {
-			style.marginLeft = (-node.offsetWidth / 2) +'px';
-			style.marginTop =  (-node.offsetHeight / 2) +'px';
-		} else {
 			var spacing = 4;
 			var rect = this._parent.getBoundingClientRect();
 			var left = rect.left;
diff --git a/js/htk/popup/style.scss b/js/htk/popup/style.scss
index c89d5967..89a15908 100644
--- a/js/htk/popup/style.scss
+++ b/js/htk/popup/style.scss
@@ -10,10 +10,10 @@
 	box-sizing: content-box;
 
 	&.modal {
-		position: absolute;
+		position: relative;
 		font-size: 1.2em;
-		top: 50%;
-		left: 50%;
+		max-width: 100%;
+		max-height: 100%;
 	}
 	& > * {
 		border-radius: 0.1em;
@@ -21,11 +21,15 @@
 }
 .htk-background {
 	position: fixed;
+	display: flex;
+	align-items: center;
+	justify-content: center;
 	left: 0;
 	right: 0;
 	top: 0;
 	bottom: 0;
 	z-index: 190;
+	padding: 20px;
 	background-color: rgba(1, 1, 1, 0.7);
 	opacity: 0;
 	transition: opacity 200ms ease-in-out;
diff --git a/js/htk/style/responsive.scss b/js/htk/style/responsive.scss
index 8b55c2ad..2454e214 100644
--- a/js/htk/style/responsive.scss
+++ b/js/htk/style/responsive.scss
@@ -4,51 +4,51 @@
 
 /* Standard */
 @media screen {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 
 /* Desktop - Laptop 1360x768 */
 @media (max-resolution: 119dpi) and (min-device-width: 1340px) and (max-device-width: 1899px) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 
 /* Desktop - FHD 1920x1080 */
 @media (max-resolution: 119dpi) and (min-device-width: 1900px) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 
 /* Mobile - Low DPI */
 @media
 	(min-resolution: 120dpi),
 	(-webkit-min-device-pixel-ratio: 1.5) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 @media
 	(min-resolution: 144dpi),
 	(-webkit-min-device-pixel-ratio: 1.5) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 
 /* Mobile - Normal DPI */
 @media
 	(max-device-width: 383px) and (min-resolution: 192dpi),
 	(max-device-width: 383px) and (-webkit-min-device-pixel-ratio: 2) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 @media
 	(min-device-width: 384px) and (min-resolution: 192dpi),
 	(min-device-width: 384px) and (-webkit-min-device-pixel-ratio: 2) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 
 /* Mobile - High DPI */
 @media
 	(max-device-width: 411px) and (min-resolution: 249dpi),
 	(max-device-width: 411px) and (-webkit-min-device-pixel-ratio: 3) {
-	body { font-size: 10pt; }
+	body { font-size: 14px; }
 }
 @media
-	(min-device-width: 412px) and (min-resolution: 249dpi),
-	(min-device-width: 412px) and (-webkit-min-device-pixel-ratio: 3) {
-	body { font-size: 10pt; }
+	(min-device-width: 414px) and (min-resolution: 249dpi),
+	(min-device-width: 414px) and (-webkit-min-device-pixel-ratio: 3) {
+	body { font-size: 14px; }
 }
diff --git a/js/htk/style/style.scss b/js/htk/style/style.scss
index 86dfc3db..801b8cc6 100644
--- a/js/htk/style/style.scss
+++ b/js/htk/style/style.scss
@@ -170,9 +170,8 @@ button,
 	@extend %clickable;
 	border: none;
 	background-color: transparent;
-	padding: 10px;
+	padding: 8px;
 	border-radius: 22px;
-	margin: -0.5em;
 	font-weight: normal;
 
 	&:disabled {
diff --git a/js/vn/builder.js b/js/vn/builder.js
index e918f0df..000d2082 100644
--- a/js/vn/builder.js
+++ b/js/vn/builder.js
@@ -186,7 +186,7 @@ module.exports = new Class({
 		return scope;
 	}
 	
-	,link: function(scope, exprScope) {
+	,link: function(scope) {
 		const objects = scope.objects;
 		const links = this._links;
 
@@ -211,30 +211,22 @@ module.exports = new Class({
 
 		// Post-link
 
-		const baseExprScope = [
-			_,
-			scope.$
-		].concat(exprScope);
-
-		this.linkExpr(scope, baseExprScope);
-
 		const contexts = this._contexts;
 		for (var i = 0; i < contexts.length; i++) {
 			const context = contexts[i];
 			const object = objects[i];
 
 			if (context.tagName)
-				this.elementLink(context, object, objects, scope, baseExprScope);
+				this.elementLink(context, object, objects, scope);
 			else if (context.klass)
-				this.objectLink(context, object, objects, scope, baseExprScope);
+				this.objectLink(context, object, objects, scope);
 		}
 	}
 
-	,linkExpr(scope, baseScope, exprScope) {
+	,digest(scope) {
 		const contexts = this._contexts;
 		const objects = scope.objects;
-
-		exprScope = baseScope.concat(exprScope);
+		const exprScope = scope.exprScope;
 
 		for (let i = 0; i < contexts.length; i++) {
 			const context = contexts[i];
@@ -242,10 +234,16 @@ module.exports = new Class({
 
 			if (context.exprs) {
 				const values = [];
+				let isEmpty = false;
+
 				for (expr of context.exprs) {
 					let value = undefined;
 					try {
 						value = expr.apply(scope.thisArg, exprScope);
+						if (value == null) {
+							isEmpty = true;
+							break;
+						}
 					} catch (e) {
 						console.warn('Expression error:', e.message);
 						continue;
@@ -253,10 +251,16 @@ module.exports = new Class({
 					values.push(value);
 				}
 
-				let k = 0;
-				const text = context.text.replace(/{{\d+}}/g, function() {
-					return values[k++];
-				});
+				let text;
+
+				if (!isEmpty) {
+					let k = 0;
+					text = context.text.replace(/{{\d+}}/g, function() {
+						return values[k++];
+					});
+				} else
+					text = '';
+
 				object.textContent = text;
 			} else {
 				const dynProps = context.dynProps;
@@ -524,7 +528,7 @@ module.exports = new Class({
 		return object;
 	}
 	
-	,objectLink: function(context, object, objects, scope, exprScope) {
+	,objectLink: function(context, object, objects, scope) {
 		const objectProps = context.objectProps;
 		for (const prop in objectProps)
 			object[prop] = objects[objectProps[prop]];
@@ -546,7 +550,7 @@ module.exports = new Class({
 				method = method.bind(scope.thisArg);
 			} else {
 				method = function() {
-					handler.apply(scope.thisArg, exprScope);
+					handler.apply(scope.thisArg, scope.exprScope);
 				};
 			}
 
@@ -566,7 +570,7 @@ module.exports = new Class({
 					this.showError(`Function '${handler}' not found`);
 			} else {
 				listener = function() {
-					handler.apply(scope.thisArg, exprScope.concat(arguments));
+					handler.apply(scope.thisArg, scope.exprScope.concat(arguments));
 				};
 			}
 
@@ -641,7 +645,7 @@ module.exports = new Class({
 		return object;
 	}
 	
-	,elementLink: function(context, object, objects, scope, exprScope) {
+	,elementLink: function(context, object, objects, scope) {
 			const childs = context.childs;
 		for (var i = 0; i < childs.length; i++) {
 			let child = objects[childs[i]];
@@ -664,7 +668,7 @@ module.exports = new Class({
 				listener = listener.bind(scope.thisArg);
 			} else {
 				listener = function(e) {
-					handler.apply(scope.thisArg, exprScope.concat(e));
+					handler.apply(scope.thisArg, scope.exprScope.concat(e));
 				};
 			}
 
diff --git a/js/vn/mutators.js b/js/vn/mutators.js
index 0c681e0c..a30a14ef 100644
--- a/js/vn/mutators.js
+++ b/js/vn/mutators.js
@@ -12,7 +12,7 @@ Mutators.Extends = function() {
 Mutators.Tag = function(tagName) {
 	vnCustomTags[tagName] = this;
 	this.extend({Tag: tagName});
-	
+
 	const parent = this.parent;
 	if (parent && parent.Classes !== undefined) {
 		let Classes = tagName
diff --git a/js/vn/scope.js b/js/vn/scope.js
index 57b9771b..65a2656c 100644
--- a/js/vn/scope.js
+++ b/js/vn/scope.js
@@ -10,12 +10,14 @@ module.exports = new Class({
 		this.builder = builder;
 		this.objects = objects;
 		this.thisArg = thisArg;
-		this.parentScope = parent;
+		this.parent = parent;
 		this.uid = ++scopeUid;
 		this.$ = parent ? Object.create(parent.$) : {};
 
-		if (!thisArg && parent)
-			this.thisArg = parent.thisArg;
+		if (parent) {
+			parent.on('lot-change', this.onLotChange, this);
+			if (!thisArg) this.thisArg = parent.thisArg;
+		}
 	}
 	
 	,link: function(exprScope, extraObjects) {
@@ -26,7 +28,22 @@ module.exports = new Class({
 		for (var id in contextMap)
 			this.$[id] = this.objects[contextMap[id]];
 
-		this.builder.link(this, exprScope);
+		this.exprScope = [
+			_,
+			this.$
+		].concat(exprScope);
+
+		this.builder.link(this);
+		this.builder.digest(this);
+
+		for (const object of this.objects)
+		if (object.assignLot)
+			object.on('change', this.onLotChange, this);
+	}
+
+	,onLotChange() {
+		this.emit('lot-change');
+		this.builder.digest(this);
 	}
 
 	,getMain: function() {
@@ -47,11 +64,15 @@ module.exports = new Class({
 	}
 	
 	,_destroy: function() {
-		var objects = this.objects;
-	
-		for (var i = 0; i < objects.length; i++)
-		if (objects[i] instanceof VnObject)
-			objects[i].unref();
+		for (const object of this.objects)
+		if (object instanceof VnObject) {
+			object.disconnectByInstance(this);
+			object.unref();
+		}
+		if (this.parent) {
+			this.parent.disconnectByInstance(this);
+			this.parent.unref();
+		}
 
 		VnObject.prototype._destroy.call(this);
 	}
diff --git a/package.json b/package.json
index 652f0c42..20973eb9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hedera-web",
-  "version": "1.407.78",
+  "version": "1.407.79",
   "description": "Verdnatura web page",
   "license": "GPL-3.0",
   "repository": {