@font-face {
    font-family: 'Century-Gothic';
	font-weight: normal;
	font-style: normal;
    src: url('../../assets/fonts/CenturyGothic.woff2') format('woff2');
}
@font-face {
    font-family: 'Century-Gothic';
	font-weight: bold;
	font-style: normal;
    src: url('../../assets/fonts/CenturyGothic-Bold.woff2') format('woff2');
}
@font-face {
    font-family: 'Century-Gothic';
	font-weight: bold;
	font-style: italic;
    src: url('../../assets/fonts/CenturyGothic-BoldItalic.woff2') format('woff2');
}
@font-face {
    font-family: 'Century-Gothic';
	font-weight: normal;
	font-style: italic;
    src: url('../../assets/fonts/CenturyGothic-Italic.woff2') format('woff2');
}
@font-face {
    font-family: 'Arial';
    font-style: normal;
    font-weight: normal;
    src: url('../../assets/fonts/ARIAL.woff') format('woff');
}
@font-face {
    font-family: 'Arial';
    font-style: normal;
    font-weight: bold;
    src: url('../../assets/fonts/ARIALBD.woff') format('woff');
}
@font-face {
    font-family: 'Arial';
    font-style: italic;
    font-weight: normal;
    src: url('../../assets/fonts/ARIALI.woff') format('woff');
}
@font-face {
    font-family: 'Arial';
    font-style: italic;
    font-weight: bold;
    src: url('../../assets/fonts/ARIALBI.woff') format('woff');
}

html {
  scroll-behavior: smooth;
}
body {
	background-color: #FFF;
	margin: 0;
	font-family: "Arial", Helvetica, sans-serif;
}
.content {
	height: 700px;
    position: relative;
    display: block;
    margin: 0;
    padding: 0;
}
h1 {
	text-align: center;
}
span, p {
	font-family: "Arial", Helvetica, sans-serif;
	font-size: 1.3em;
}
.howto_div {
	visibility: hidden;
	position: absolute;
	top: 80px;
    left: 25px;
    width: 852px;
    height: 550px;
    display: block;
}
.how_to_scene {
	visibility: hidden;
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 550px;
}
.howto_div h2 {
	position: absolute;
    display: block;
    margin: auto;
    width: 100%;
    text-align: center;
    top: 10px;
}
.howto_div .instructions {
	position: relative;
	top: 30px;
}
.howto_div .next_btn {
	position: absolute;
	bottom: 1.5em;
	right: 0;
}
.howto_div .close_btn {
	position: absolute;
	bottom: 1.5em;
	left: 0;
}
.intro_div {
	/*border: 1px solid #000;*/
	height: 550px;
    margin: 1.5em auto;
    border-radius: 1.5em;
	width: 900px;
	
	box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;
}
.container {
	max-width: 260px;
    display: flex;
    justify-content: space-between;
    align-content: center;
    flex-direction: column;
    flex-wrap: wrap;
}
.container_a img, .container_a {
	width: 260px;
	position: absolute;
	height: 290px
}
.container_b img, .container_b {
	width: 182px;
	position: absolute;
	height: 203px;
}
.container_c img, .container_c {
	width: 91px;
	position: absolute;
	height: 105.5px;
}
.container_label {
	font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
	font-size: 4em;
	font-weight: bold;
	text-align: center;
	position: relative;
	width: 100%;
	padding: 20% 0;
}
.container_c .container_label {
	padding: 0;
	top: -8px;
}
.intro_scene {
	display: flex;
    position: relative;
    top: 350px;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    width: 930px;
    margin: auto;
	visibility: hidden;
}
.container_description {
	position: absolute;
	top: 0;
	left: 0;
}
.container_b .container_description {
	left: -40px;
}
.part_01, .part_02 {
	position: relative;
	display: contents;
}

button, .fake_ok, .fake_fill, .fake_empty, .fake_squirt {
	padding: 0.8em;
    border-radius: 0.5em;
    font-size: 1.1em;
    font-weight: bold;
    min-width: 100px;
	max-height: 50px;
	height: 50px;
	cursor: not-allowed;
	border-width: 0px;
	background-color: #f5fcfb;
	text-align: center;
	box-shadow: rgba(0, 0, 0, 0.4) 0px 2px 4px, rgba(0, 0, 0, 0.3) 0px 7px 13px -3px, rgba(0, 0, 0, 0.2) 0px -3px 0px inset;
	/*transition: 0.1s;*/
	z-index: 1000;
	/*color: #000;*/
}
button a:not(.squirt_btn a, .ok_btn a) {
	color: #000;
	color: inherit;
}
button[disabled] {
	color: #888;
}
.fake_ok {
	cursor: default;
    display: block;
    padding: 0.8em 0 0 0;
    height: 35px;
    width: 10px;
    right: 0.5em;
    position: absolute;
}
.fake_fill, .fake_empty {
	cursor: default;
    padding: 0;
    background-color: #FFF;
    width: 50px;
	min-width: 50px;
	margin: 0.5em;
}
.fake_squirt {
	cursor: default;
    display: block;
    padding: 0.8em 0 0 0;
    height: 25px;
    border-radius: 0.25em;
    width: 40px;
    min-width: 0;
    min-height: 0;
    font-size: 1.8em;
    /*font-weight: bold;*/
    line-height: 0;
    padding: 0.6em 0.4em 0 0.4em;
	margin-top: 0.5em;
	font-weight: normal;
	color: #000;
}
.fake_fill .tap {
	/*top: 5px;
    left: 7px;*/
}
.fake_empty .plug {
	left: 91px;
}
.buttonOver a {
	font-size:1.15em;
	position: relative;
	top: -1px !important;
	/*transition: 0.1s;*/
}
.buttonDown {
	box-shadow: rgba(9, 30, 66, 0.25) 0px 1px 1px, rgba(9, 30, 66, 0.13) 0px 0px 1px 1px;
	transition: 0.1s;
}
.buttonDown a {
	position: relative;
	top: 0px !important;
	transition: 0.1s;
}
.intro_div .next_btn {
	position: relative;
    top: 0px;
    float: right;
    margin-right: 30px;
	/*transition: 0.1s;*/
}
.container_a, .container_b {
	opacity: 0;
}
.start_btn {
	/*margin: auto;*/
	position: absolute;
	/*display: inline-block;*/
	margin-left: 1em;
	/*transition: 0.1s;*/
}
.scene_02 .container_a {
	left: 100px;
	bottom: 20px;
}
.scene_02 .container_b {
	left: 450px;
	bottom: 92px;
}
.scene_02 .container_a .container_description {
	top: 90px;
	padding-left: 280px;
}
.scene_02 .container_b .container_description {
	top: 75px;
	padding-left: 250px;
	min-width: 200px;
}
.scene_02 .part_02 span, .scene_05 .part_02 span {
	opacity: 0;
}
.scene_02 .scene_text {
	top: 50px;
	position: relative;
}
.scene_03 .scene_text {
	bottom: 320px;
	position: relative;
}
.scene_03 .container_a {
	left: 60px;
	bottom: 0px;
}
.scene_03 .container_description {
	top: 90px;
	padding-left: 280px;
}
.scene_03 .container_b {
	bottom: 70px;
}
.scene_03 .container_b .container_description {
	top: 75px;
	padding-left: 250px;
}
.scene_04 .container {
	transform: scale(0.6);
}
.scene_04 .container_description {
	transform: scale(2);
}
.scene_04 .part_01 .container_a {
	left: 200px;
	bottom: 160px;
}
.scene_04 .part_01 .container_description {
	top: 90px;
	padding-left: 180px;
}
.scene_04 .part_01 .container_b {
	bottom: 217px;
}
.scene_04 .part_01 .container_b .container_description {
	top: 70px;
	padding-left: 158px;
}
.scene_04 .scene_text {
	bottom: 160px;
    position: relative;
}
.scene_04 .part_02 .container_a {
	left: 200px;
	bottom: -100px;
}
.scene_04 .part_02 .container_description {
	top: 90px;
	padding-left: 190px;
}
.scene_04 .part_02 .container_b {
	bottom: -43px;
}
.scene_04 .part_02 .container_b .container_description {
	top: 70px;
	padding-left: 200px;
	min-width: 150px;
}
.algebra_font {
	font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
}
.scene_05 .container_a {
	left: 40px;
	bottom: 110px;
}
.scene_05 .container_b {
	left: 330px;
	bottom: 182px;
}
.scene_05 .container_c {
	left: 765px;
	bottom: 232px;
}
.scene_05 .container_a .container_description {
	top: 90px;
	padding-left: 250px;
}
.scene_05 .container_b .container_description {
	top: 75px;
	padding-left: 215px;
	min-width: 280px;
}
.scene_05 .part_02 .scene_text {
	bottom: 50px;
	position: relative;
}
.scene_06 .part_02 span {
	opacity: 0;
}
.scene_06 {
	top: 0;
}
.scene_06 p {
	width: 50%;
}
.left_of_equals {
	text-align: right;
    width: 50%;
    display: inline;
    position: relative;
    float: left;
}
.right_of_equals {
	text-align: left;
    width: 50%;
    display: inline;
    position: relative;
    float: right;
}
.scene_07 {
	top: -170px;
}
.main {
	visibility: hidden;
	height: 630px;
    margin: 1.5em auto;
    border-radius: 1.5em;
	width: 900px;
	background-color: #1C7A81;
	box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 2px 6px 2px;
	padding: 0.1px;
	position: absolute;
	top: 0;
}
.main h1{
	color: #FFF;
}
.main_div {
	background-image: radial-gradient(farthest-side at 95% 5%, #e9ffbc, #b9eeef);
    height: 450px;
    margin: 0 1.5em;
    border-radius: 0.5em;
    box-shadow: 0.1em 0.1em 0.2em 0 rgb(255 255 255 / 25%), -0.1em -0.1em 0.1em 0 rgb(0 0 0 / 25%);
}
.first_time, .levels {
	text-align: center;
	top: 150px;
    position: relative;
}
.first_time p, .levels p {
	background-color: #FFF;
    border-radius: 0.5em;
    display: inline-block;
    padding: 0.7em 1em;
}
.two_buttons button, .three_buttons button {
	position: absolute;
	display: inline-block;
}
.two_buttons .yes_btn {
	left: 16em;
}
.two_buttons .no_btn {
	right: 16em;
}
.levels {
	visibility: hidden;
}
.three_buttons #level1_btn {
	left: 10em;
}
.three_buttons #level2_btn {
	left: 21.5em;
}
.three_buttons #level3_btn {
	right: 10em;
}
.bottom_section {
	position: absolute;
	bottom: 0;
	display: inline-block;
	width: 852px;
}
.bottom_section button {
	position: absolute;
	bottom: 1.5em;
	min-width: 160px;
}
.how_btn {
	left: 0;
}
.new_btn {
	right: 0;
}
.bottom_section h1 {
	padding-bottom: 0.3em;
}

.load_div {
	position: relative;
	text-align: center;
	margin-right: 100px;
}
.load_bar {
	position: relative;
	display: inline-block;
	margin-right: 1em;
	background-color: #DDD;
	min-width: 150px;
	border-radius: 1em;
	margin: 0.5em;
	min-height: 1em;
	padding: 0.55em;
}
.activity, .ht {
	visibility: hidden;
    height: 450px;
    position: absolute;
    top: 5em;
    left: 24px;
    width: 852px;
}
.ht {
	top: 0;
	left: 0;
}
.instructions {
	border-radius: 0.5em;
    display: table;
    padding: 0.5em 1em;
	background-color: #FFF;
	margin: 1em auto;
}
.instructions p {
	font-size: 1em;
	line-height: 0.5em;
}
.equation {
	border-radius: 1em;
    display: inline-flex;
	align-items: center;
    padding: 0.5em 1em;
	background-color: #FFF;
	/*margin: 1em auto;*/
	min-width: 240px;
	position: absolute;
	min-height: 50px;
}
.equation span {
	font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
	font-weight: bold;
}
input {
	min-width: 2em;
	max-width: 2em;
    padding: 0.2em;
    font-size: 1.3em;
    text-align: center;
    font-weight: bold;
    font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
    margin: 0 0.3em;
	border-style: solid;
    border-color: #000;
	background-color: #FFF;
	z-index: 6000;
}
.inputDisabled {
	border: none;
	width: auto;
}
.ok_btn {
	position: absolute;
	right: 0.5em;
}
#equation1, #hte1 {
	left: 2em;
}
#equation2, #hte2 {
	right: 2em;
}
#hte1, #hte2 {
	top: 155px;
}
#equation3, #hte3 {
	bottom: 0.5em;
	left: 295px;
}
.content hr {
	margin: 0.3em;
	border-style: solid;
	color: #000;
}
.plumbing_buttons {
	position: absolute;
	z-index: 2000;
}
.fake_plumbing {
	position: absolute;
    z-index: 2000;
    display: flex;
}
.plumbing_buttons button {
	min-width: 50px;
	margin: 0.5em;
	background-color: #FFF;
}
#plumbingA {
	bottom: 0.5em;
	left: 5em;
}
#plumbingB {
	bottom: 120px;
	left: 360px;
}
.ht #plumbingB {
	bottom: 80px;
}
#plumbingC {
	bottom: 0.5em;
	right: 5em;
}
/*.fill_btn {
	background-image: url(../images/tap.jpg);
    background-size: 260px;
    background-position: 4px 2px;
    background-repeat: no-repeat;
}
.empty_btn {
	background-image: url(../images/plug.jpg);
    background-size: 800px;
    background-position: 12px 0px;
    background-repeat: no-repeat;
}*/
.tap {
	position: absolute;
    top: 15px;
    left: 15px;
    width: 37px;
    height: 37px;
    background-image: url(../images/tap.jpg);
    background-position: 0 0;
    background-size: 222px 37px;
}
.plug {
	position: absolute;
    top: 15px;
    left: 95px;
    width: 22px;
    height: 37px;
    background-image: url(../images/plug.jpg);
    background-position: top 0px left 0px;
    background-size: 663px 37px;
}
.activity .container, .ht .container {
	position: absolute;
	top: 0;
	left: 0;
    width: 172px;
    height: 291px;
    background-image: url(../images/jarA.png);
    background-position: top 0px left 0px;
    background-size: 3268px 290.5px;
	
}

.container_b_jarB {
	background-image: url(../images/jarB.png) !important;
}
.container_c_jarC {
	background-image: url(../images/jarC.png) !important;
}
.level2_container_b {
	width: 212px !important;
    height: 179px !important;
    background-image: url(../images/jarB.png) !important;
    background-size: 3816px 179px !important;
}
.level2_containerB {
	width: 212px !important;
	height: 179px !important;
	left: 321px !important;
}
.level2_container_c {
	width: 154.5px !important;
    height: 139.25px !important;
    background-image: url(../images/jarC.png) !important;
    background-size: 2781px 139.25px !important;
}
.level2_containerC {
	width: 154.5px !important;
	height: 139.25px !important;
	left: 623px !important;
}
.containerDiv {
	position: absolute;
	width: 172px;
	z-index: 50;
}
.containerDiv span {
	z-index: 500;
	display: block;
    top: 45px;
	font-size: 3em;
}
#container_a { /* the img */
	
}
#fake_container_a {
	
}
#containerA, #fakeContainerA { /* the div */
	top: 195px;
    left: 63px;
}
#fakeContainerA {
	transform: scale(0.7);
}
#container_b { /* the img */
	
}
#containerB, #fakeContainerB { /* the div */
	top: 85px;
    left: 343px;
}
#fakeContainerB {
	transform: scale(0.9);
	top: 115px;
}
#container_c { /* the img */
	
}
#containerC, #fakeContainerC { /* the div */
	top: 195px;
    left: 615px;
}
#fakeContainerC {
	transform: scale(1);
}

.pour {
	position: absolute;
    width: 35px;
    height: 283.75px;
    background-image: url(../images/pour.png);
    background-position: top 0px left 0px;
    background-size: 420px 283.75px;
	visibility: hidden;
	/*clip-path: inset(0px 0px 40px 0px);*/
	transform: scaleX(0.7);
}
.pourDiv {
	position: absolute;
	top: 0px;
	/*z-index: 3000;*/
}
#pourA, #fakePourA {
	left: 131px;
	
}
#pourB {
	left: 411px;
}
#pour_b {
	clip-path: inset(0px 0px 100px 0px);
}
#pourC, #fakePourC {
	left: 683px;
}

.water {
	position: absolute;
	top: 0;
	left: 0;
    width: 172px;
    height: 291px;
    background-image: url(../images/jarA_water.png);
    background-position: top 0px left 0px;
    background-size: 172px 290.5px;
	clip-path: inset(170px 0px 0px 0px); /* - 0% / empty */
	/*clip-path: inset(50px 0px 0px 0px);*/ /* - 100% / full */
}
.level2_water_b {
	width: 212px !important;
    height: 179px !important;
    background-image: url(../images/jarB_water.png) !important;
    background-size: 212px 179px !important;
}
.level2_water_c {
	width: 154px !important;
    height: 139.25px !important;
    background-image: url(../images/jarC_water.png) !important;
    background-size: 154px 139.25px !important;
}
.level2_span_b {
	top: 30px !important;
}

.activity_level {
	display: none;
}
#feedback {
	margin: 0;
    padding: 0.1em 1em;
    position: absolute;
    display: block;
    width: 450px;
    border: solid #1c7a81 1.5em;
    border-radius: 2em;
    top: -100px;
    left: 160px;
	display: none;
}
#feedback p {
	line-height: normal;
}

.squirt_buttons {
	position: absolute;
    display: inline-grid;
    top: 200px;
    left: 255px;
	transform: rotate(-20deg);
	z-index: 1500;
}
#fake_squirt_a_b, #fake_squirt_b_c {
	top: 225px;
	font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
}
.squirt_btn {
	margin-bottom: 1em;
	min-width: 50px;
	height: 45px;
}
.squirt_btn a {
	font-size: 1.8em;
	line-height: 0;
	font-weight: normal;
	font-family: "Century-Gothic", "Apple SD Gothic Neo", "Brush Script MT", "Arial", Helvetica, sans-serif;
	top: -0.1em;
	position: relative;
	display: block;
	padding: 0 0.1em;
}
#squirt_b_c, #fake_squirt_b_c {
	left: 540px;
	transform: rotate(20deg);
	
}

.squirt {
	position: absolute;
    width: 169.25px;
    height: 240.5px;
    background-image: url(../images/squirt_a_to_b.png);
    background-position: top 0px left 0px;
    background-size: 1692.5px 240.5px;
	z-index: 10;
	visibility: visible;
	/*visibility: hidden;
	clip-path: inset(0px 0px 40px 0px);*/
}
.squirtDiv {
	position: absolute;
	top: -45px;
    /* z-index: 5000; */
    transform: scale(1.88, 1.2);
	/*visibility: hidden;*/
}
#squirtAtoB, #fakeSquirtAtoB {
	left: 133px;
}
#squirtBtoA {
	left: 125px;
    top: 47px;
    transform: scale(1.97,0.72);
}
#squirt_b_to_a {
	width: 169.5px;
    height: 271.5px;
    background-image: url(../images/squirt_b_to_a.png);
    background-size: 1864.5px 271.5px;
	/*clip-path: inset(0px 0px 41px 0px);*/
}
#squirtBtoC {
	left: 405px;
    top: 48px;
	transform: scale(1.85, 0.71);
}
#squirt_b_to_c {
    width: 169.5px;
    height: 271.5px;
    background-image: url(../images/squirt_b_to_c.png);
    background-size: 1864.5px 271.5px;
}
#squirtCtoB, #fakeSquirtCtoB {
	left: 400px;
}
#squirt_c_to_b, #fake_squirt_c_to_b {
	background-image: url(../images/squirt_c_to_b.png);
}
.red_glow {
	box-shadow: rgb(255 0 0) 0px 2px 4px, rgb(255 0 0 / 70%) 0px 7px 13px -3px, rgb(255 0 0 / 20%) 0px -3px 0px inset;
}
.red_glow2 {
	-webkit-appearance: none;
	box-shadow: rgb(255 0 0) 0px 2px 4px, rgb(255 0 0 / 70%) 0px 7px 13px -3px;
}
.footer {
	width: 816px;
    height: 65px;
    position: relative;
    margin: auto;
	top: 15px;
}

.footer .copyright {
    position: relative;
    text-align: center;
    font-size: 12px;
    margin-top: 9px;
	font-family: arial;
}

.footer .logo{
    width: 108px;
    height:48px;
    background: url('../images/support_files/tlf_logo.png') no-repeat;
    position: absolute;
    top:0px;
	left:0;
	cursor:pointer;
}

.footer .link{
    width: 88px;
    height:31px;
    background: url('../images/support_files/by-sa.svg') no-repeat;
	background-size: contain;
    position: absolute;
    top:0px;
	right:0;
	cursor:pointer;
}
.footer .link a{
    width: 88px;
    height:31px;
	position:absolute;
}