@import "vars.css";

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /*border: 1px solid yellow;  /*debug */
}

html {
    display: block;
    background-color: var(--main-paleblue);
}

body {
    margin: 0em;
    text-align: left;
    background-color: var(--main-paleblue);
    color: var(--main-dark);
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    font-size: 1rem;
}

.coverbody {
    background-color: var(--main-paleblue);
}

#nav-bar {
    width: 100%;
    padding: 1em;
    text-align: center;
    background-color: var(--main-dark);
}

.navcontainer {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    max-width: 1280px;
    align-items: end;
    margin: auto;
}

.navcontainercover {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    max-width: 1024px;
    align-items: end;
    margin: auto;
}

.navcontainercover a {
    color: var(--main-white);
    text-decoration: none;
}

#nav-bar ul {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    width: 100%;
}

#nav-bar li {
    margin-left: 2em;
    list-style: none;
}

#nav-bar-cover {
    width: 100%;
    padding: 1em;
    text-align: center;
    background-color: var(--main-dark);
}

#nav-bar-cover ul {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    max-width: 1024px;
    margin: auto;
}

#nav-bar-cover li {
    margin-left: 2em;
    list-style: none;
}

a:hover {
    cursor: pointer;
}

a.topnav {
    display: inline-block;
    border-radius: .5rem;
    background-color: var(--main-dark);
    color: var(--main-white);
    padding: .5rem;
    text-align: center;
    font-weight: 600;
    text-decoration: none;
}

a.topnav:focus,
a.topnav:hover {
    border-radius: .5rem;
    background-color: var(--main-light);
    color: var(--main-dark);
    padding: .5rem;
}

.stripe {
    border-bottom: 1px solid var(--main-light);
}

.thickstripe {
    border-bottom: 6px solid var(--main-light);
}

#topheader {
    width: 100%;
    padding-top: 7.5em; 
    padding-bottom: 4em; 
    text-align: center;
    background-color: var(--main-dark);
}

.courseinfo {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    max-width: 1024px;
    color: var(--main-white);
    margin: auto;
    align-items: end;
}

.courseinfo a {
    color: var(--main-white);
}

.courseinfocover {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    max-width: 1024px;
    color: var(--main-white);
    margin: auto;
    align-items: top;
}

.courseinfocover a {
    color: var(--main-white);
}

#course {
    width: 50%;
    display: flex;
    flex-direction: column;
}

#coursecall {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    margin-left: 3em; 
    margin-top: 0em; 
}

#coursecall p {
    font-size: 1.3rem;
    text-align: left;
    padding-top: 0.6em;
    padding-bottom: 2em;
    padding-left: 0;
    padding-right: 0.5em;
}

#logo {
    margin-left: 1em;
}

#logotext {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    text-align: left;
}

#logotext a {
    text-decoration: none;
}

#coverlogotext a {
    text-decoration: none;
}

#purpose {
    margin: 0;
    margin-top: 1em;
    padding: 0;
    width: 100%;
    text-align: left;
}

.homepage {
    vertical-align: bottom;
    margin-left: 1em;
    width: 20%;
    text-align: left;
    color: var(--main-white);
    text-decoration: none;
}

.homepagecover {
    vertical-align: bottom;
    padding-left: 0;
    width: 20%;
    text-align: left;
    color: var(--main-white);
    text-decoration: none;
}
#graphic { 
    margin-top: -2em;/* NEW*/
    margin-left: -1em;/* NEW*/
    margin-right: 0em; /* NEW */
}

#graphic img {
    width: 100%;
}

#details {
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: end;
}

.maincontent {
    margin: auto;
    max-width: 1280px;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
}

.maincontentcover {
    margin: auto;
    padding-top: 1em;
    padding-bottom: 1em;
    max-width: 1024px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    font-size: 1.1rem;
}

.maincontentcover p {
    font-weight: bold;
    margin-top: 0.75em;
    margin-bottom: 1.5em;
}

.coverwidth {
    max-width: 1024px;
    background-color: var(--main-paleblue);
}

.activities {
    padding-top: 1em;
    text-align: left;
    width: 70%;
}

.sidenav {
    background-color: var(--main-paleblue);
    color: var(--main-dark);
    padding-top: 2em;
}

.instruct {
    margin-bottom: 1.5em;
    color: var(--main-dark);
    width: auto;
    margin-right: 2em;
    margin-left: 0;
}

.sidenav ul {
    display: flex;
    flex-direction: column;
    margin-bottom: 2em;
}

.sidenav li {
    list-style: none;
    width: 250px;
    padding: .5rem;
    font-size: .9rem;
    font-weight: 600;
}

.sidenav li a {
    padding: .5em;
    width: auto;
    font-size: .9rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--main-dark);
}

.sidenav li a:focus,
.sidenav li a:hover {
    border-radius: .5rem;
    background-color: var(--main-light);
    color: var(--main-dark);
    padding: .5rem;
}

.smallnav {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
}

#controls {
    margin-top: 1em;
    color: var(--main-dark);
    font-size: 1.2rem;
}

#controls #lessonname {
    font-size: 1.2rem;
    font-weight: 600;
    margin-right: 0.8em;
    word-wrap: break-word;
}

#controls a:link,
#controls a:visited {
    color: var(--main-dark);
    text-decoration: none;
    vertical-align: middle;
    padding-left: 1em;
    padding-right: 1em;
    max-height: 30px;
}

#controls a:focus,
#controls a:hover {
    border-radius: .5rem;
    background-color: var(--main-light);
    color: var(--main-dark);
}

#footercontainer {
    width: 100%;
    background-color: var(--main-dark);
    border-top: 1px solid var(--main-white);
}

footer {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    background-color: var(--main-dark);
    color: var(--main-white);
    max-width: 1280px;
    margin: auto;
    padding: 1em 0 1em 0;
}

.coverfooter {
    max-width: 1024px;
}

footer a {
    color: var(--main-white);
}

#author {
    text-align: left;
    width: 50%;
}

#designmethods {
    width: 50%;
    text-align: right;
}

#exercises {
    width: 100%;
    margin-top: 3em;
    color: var(--main-dark);
}

h2,
h3 {
    margin-bottom: 1em;
}

h2 {
    margin-top: 0.5em;
}

#exercises .exname {
    font-weight: 600;
}

#challenges {
    color: var(--main-dark);
    width: 100%;
    margin-top: 3em;
    margin-bottom: 3em;
}

#challenges .chname {
    font-weight: 600;
}


#challenges header p {
    margin-top: -0.5em;
}

#challenges header {
    margin-bottom: 1em;
}

#setup {
    padding: 0 1em 0 0;
    margin-bottom: 4em;
}

.panel {
    width: 100%;
    text-align: left;
}

.iframe-16-9 {
    aspect-ratio: 16/10;
    max-width: 100%;
}

.iframe-16-11 {
    aspect-ratio: 16/11;
    max-width: 100%;
}

.iframe-16-12 {
    aspect-ratio: 16/13;
    max-width: 100%;
}

.container {
    background-color: white;
    padding-bottom: 1em;
    border: 2px solid var(--main-dark);
    border-radius: 10px;
    width: 100%;
    margin-right: auto;
    margin-bottom: 1em;
    color: var(--main-dark);
}

.container p {
    padding-left: 2em;
    padding-top: 1em;
    padding-right: 2em;
}

.tips {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    vertical-align: bottom;
    margin-top: 1em;
    margin-bottom: 1em;
    width: 100%;
}

.tips a,
#controls a {
    text-decoration: none;
    background-color: var(--main-white);
    border: 2px solid;
    border-radius: 10px;
    border-color: var(--main-dark);
    color: var(--main-dark);
    padding: 10px;
    font-weight: 600;
    font-size: .9rem;
    width: auto;
    text-align: center;
    margin-left: 0;
    margin-right: 1em;
    margin-bottom: 1em;
}

.up {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    vertical-align: bottom;
    margin-top: 1em;
    width: 100%;
}

.up a {
    text-decoration: none;
    background-color: var(--main-dark);
    border: 2px solid;
    border-radius: 10px;
    border-color: var(--main-dark);
    color: var(--main-white);
    padding: 10px;
    font-weight: 600;
    font-size: .9rem;
    width: auto;
    text-align: center;
    margin-bottom: 1em;
}

.up a:hover {
    color: var(--main-light);
}

.covertip a {
    padding: 0.8em;
    padding-top: 0.7em;
    padding-bottom: 0.7em;
    font-size: 1.2rem;
    margin-left: 3.6em; /* old was 2.7em */
    margin-top: -1.3em; /* old was -1em */
    background-color: #e22d1e;
    color: white;
}

#calc {
    text-decoration: none;
    background-color: white;
    border: 2px solid;
    border-radius: 10px;
    border-color: var(--main-dark);
    color: var(--main-dark);
    padding: 10px;
    font-weight: 600;
    font-size: 1rem;
    width: auto;
    text-align: center;
    margin-left: 0em;
    margin-right: .7em;
    margin-bottom: 1em;
}

#calc:hover {
    cursor: pointer;
    background-color: var(--main-light);
    color: var(--main-dark);
}

#calc:active {
    cursor: pointer;
    background-color: var(--main-dark);
    color: var(--main-white);
}

#explaincalc {
    font-size: 1.5rem;
    font-weight: 600;
}

#controls a {
    padding: 3px;
}

.tips a:focus,
.tips a:hover {
    text-decoration: none;
    color: var(--main-dark);
    background-color: var(--main-light);
}

.accordion {
    display: block;
    background-color: var(--main-dark);
    color: white;
    cursor: pointer;
    padding: 1.3em;
    margin-bottom: .3em;
    width: 100%;
    border: none;
    border-radius: 10px;
    text-align: left;
    outline: none;
    font-size: 1rem;
    transition: 0.4s;
    line-height: 100%;
}

.active,
.accordion:hover,
.accordion:focus {
    background-color: var(--main-light);
    color: var(--main-dark);
}

.panel {
    padding: 1em;
    display: none;
    background-color: var(--main-dark);
    border-radius: 10px;
    color: var(--main-white);
    overflow: hidden;
    width: 100%;
    margin-bottom: 1em;
}

img.dropdown {
    width: 100%;
    padding: 1.2em;
}

.panel p {
    margin-bottom: 1em;
}

.panel li {
    margin-left: 1em;
    margin-bottom: 1em;
}

.panel ul ul {
    margin-top: 1em;
    list-style: none;
}

.fa-circle-info {
    margin-right: 0.1em;
}

.fa-circle .fa-up-right-from-square {
    margin-right: 1em;
}

.cue {
    background-color: var(--main-white);
    color: var(--main-dark);
    border: 6px solid var(--main-light);
    border-top: 20px solid var(--main-light);
    font-weight: 600;
    margin-left: 10px;
    margin-right: 10px;
    margin-top: 10px;
    margin-bottom: 10px;
    border-radius: 10px;
    line-height: 2;
    padding: 10px;
    width: clamp(45ch, 70%, 75ch);
}

.warning {
    background-color: var(--main-white);
    color: var(--main-dark);
    border: 6px solid var(--main-red);
    border-top: 20px solid var(--main-red);
    font-weight: 600;
    margin-left: 10px;
    margin-right: 10px;
    margin-top: 10px;
    margin-bottom: 10px;
    border-radius: 10px;
    line-height: 2;
    padding: 10px;
    width: clamp(45ch, 70%, 75ch);
}

.inlessoncue {
    margin-top: 2em;
    padding-left: 0.5em;
    padding-right: 0.5em;
    background-color: var(--main-paleblue);
    width: auto;
    object-fit: contain;
    text-align: left;
}

.inlessoncue p {
    padding-bottom: 1em;
}

.inlessoncue a {
    color: var(--main-dark);
    font-weight: 700;
}

.inlessoncue a:focus,
.inlessoncue a:hover {
    background-color: var(--main-light);
    color: var(--main-dark);
}

.cue .muted {
    font-weight: 400;
}

.cue a {
    color: var(--main-dark);
    font-weight: 700;
}


.cue a:focus,
.cue a:hover {
    background-color: var(--main-light);
    color: var(--main-dark);
}

#author a,
#designmethods a {
    color: var(--main-white);
}

#author a:active,
#author a:link {
    color: var(--main-white);
}

#designmethods a:active,
#designmethods a:link {
    color: var(--main-white);
}

#author a:visited,
#designmethods a:visited {
    color: var(--main-light);
}

a.on {
    background-color: var(--main-light);
    color: var(--main-dark);
    border-radius: 10px;
}

a.topnav.on {
    background-color: var(--main-dark);
    color: var(--main-white);
}

pre[class*="language-"] {
    font-size: 0.9rem;
}

.linedlink {
    color: var(--main-white);
}

.savitch {
    color: var(--main-dark);
    padding: 1em;
}

.animatedgif {
    width: 85%;
    border: 1px solid var(--main-white);
    margin-left: 1em;
    margin-bottom: 1em;
}

table {
    padding: 1em;
    border-collapse: collapse;
    border: 1px solid var(--main-dark);
    background-color: var(--main-white);
    margin-bottom: 2em;
    height: 240px;
}

th {
    border-collapse: collapse;
    border: 1px solid var(--main-dark);
    padding: 1em;
    background-color: var(--main-light);
    height: 20%;
    font-weight: 600;
}

td {
    padding: 1em;
    border: 1px solid var(--main-dark);
}

table li {
    list-style: none;
}

.panel table {
    margin-left: 1em;
    color: var(--main-dark);
    text-align: center;
}

.accordion::before {
    content: '\002B';
    float: left;
    vertical-align: top;
    font-size: 1.5rem;
    font-weight: 600;
    margin-right: 1.2em;
}

.active::before {
    content: '\2212';
}

#trig {
    display: none;
    color: #13324e;
    padding: 1em;
    text-align: left;
    overflow-x: auto;
}

#theCanvas {
    background-color: var(--main-paleblue);
}

#xAlienReadout {
    margin-right: 2em;
}

.simulation {
    background-color: white;
    padding-bottom: 1em;
    border: 2px solid var(--main-dark);
    border-radius: 10px;
    width: 100%;
    margin-left: 0;
    margin-right: auto;
    margin-bottom: 1em;
}

.simulation p {
    margin-bottom: 1em;
    width: auto;
}

svg text {
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
}

.gridsection {
    text-align: center;
    font-size: 0.8rem;
    max-width: 1024px;
}

.grid {
    display: grid;
    column-gap: 20px;
    row-gap: 20px;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.gridsection2 {
    text-align: center;
    font-size: 0.8rem;
    width: 100%;
}

.grid2 {
    display: grid;
    column-gap: 20px;
    row-gap: 20px;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}


.card {
    padding: 0.5em;
    padding-bottom: 1em;
    font-size: 0.9rem;
    border-radius: 10px;
    border: 1px solid var(--main-dark);
    background-color: var(--main-white);
    color: var(--main-dark);
    height: auto;
}

.card img {
    width: 90%;
    height: auto;
    margin-top: 0.7em;
    border: 1px solid var(--main-dark);
}

.card h3 {
    padding-top: 1em;
    color: var(--main-dark);
}

.oopcard {
    padding: 2em;
}

.oopcard a {
    display: block;
    margin-bottom: 0.5em;
}

/* TODO: LVHA - fix this throughout */
.card a:link {
    color: var(--main-dark);
}

.card a:visited {
    color: var(--main-dark);
}

.card a:hover {
    color: var(--main-dark);
}

.card a:active {
    color: var(--main-dark);
}

.maindesc {
    width: clamp(45ch, 70%, 75ch);
    text-align: center;
}

.explanation {
    display: flex;
    flex-direction: row;
    gap: 20px;
    flex-wrap: wrap;
    color: var(--main-dark);
    margin-top: 2em;
    margin-bottom: 6em;
    background-color: var(--main-paleblue);
    padding: 0.5em;
    border: 0;
    border-radius: 10px;
    width: 100%;
    margin-bottom: 1em;
    margin-left: 0;
    margin-right: auto;
    justify-content: flex-start;
}

table {
    padding: 1em;
    border-collapse: collapse;
    border: 1px solid var(--main-dark);
    background-color: var(--main-white);
    margin-bottom: 2em;
}

th,
thead {
    padding: 1em;
    background-color: var(--main-light);
    height: 40px;
    font-weight: 600;
}

td {
    padding: 1em;
    vertical-align: top;
    border: 1px solid var(--main-dark);
}

table li {
    list-style: none;
}

.objectives {
    padding: 1em;
    background: rgb(245, 168, 1);
    background: linear-gradient(90deg, rgba(245, 168, 1, 1) 0%, rgba(249, 184, 45, 1) 35%, rgba(250, 215, 138, 1) 100%);

    margin-bottom: 1em;
    font-weight: 600;
    color: var(--main-dark);
    border-radius: 10px;
}

.objectives ul {
    padding-left: 1em;
}

canvas {
    position: relative;
    margin-bottom: 0.6em;
    border: 2px solid #13324e;
    border-radius: 10px;
    width: 100%;
    object-fit: contain;
}

#sprites {
    background-color: white;
    border: 2px solid var(--main-dark);
    padding: 1em;
    margin-bottom: 1em;
    border-radius: 10px;
    line-height: 1.8em;
}

.inlessoncue ul {
    margin-left: 2em;
}

.phet {
    padding: 1em;
    font-size: 0.8rem;
    text-align: center;
    font-style: italic;
}

.phet a {
    color: var(--main-dark);
}

a.homepage:focus,
a.homepage:hover {
    color: var(--main-light);
}

.navcontainercover .homepage {
    color: var(--main-white);
}


.object-and-details {
    display: inline-block;
    position: relative;
    width: 60%;
    overflow: hidden;
  }
  
  summary {
    color: #fff;
    background: var(--main-dark);
    width: 2rem;
    height: 2rem;
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 2;
    border-radius: 50%;
    background-image: url("../images/play_circle_filled-24px.svg");
    background-size: 90% auto;
    background-repeat: no-repeat;
    background-position: center;
    background-color: white;
  }
  
  [open] summary {
    background-image: url("../images/pause_circle_filled-24px.svg");
    box-shadow: 0 0 0 2px #fff;
    background-color: white;
  }
  
  /* for blink/webkit */
  details summary::-webkit-details-marker {
    display: none;
  }
  /* for firefox */
  details > summary:first-of-type {
    list-style: none;
  }
  
  summary + * {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 1rem;
    padding-top: 3rem;
    background: var(--main-dark);
    color: #fff;
    overflow-y: auto;
  }
  
  summary + * a {
    color: #fff;
  }
  summary:focus {
    box-shadow: 0 0 0 0.25rem var(--main-light);
    outline: transparent;
  }
  
  .object-and-details1 img {
    display: inline-block;
    position: absolute;
    top: 0px;
    left: 0px;
    overflow:hidden;
  }

@media only screen and (max-width: 1330px) {

    .maincontent,
    .pagefooter {
        padding: 1em;
    }
}

@media only screen and (max-width: 1070px) {

    .maincontentcover,
    .coverfooter {
        padding: 1em;
    }
}

@media only screen and (max-width: 950px) {
    #logo {
        display: none;
    }

    #topheader {
        display: none;
    }

    footer {
        flex-direction: column;
    }

    #author {
        padding: 1em;
    }

    #designmethods {
        text-align: left;
        padding: 1em;
        width: clamp(45ch, 90%, 75ch);
    }

    .sidenav {
        display: none;
    }

    .activities {
        text-align: center;
        width: 100%;
    }

    .objectives {
        text-align: left;
    }

    #controls {
        text-align: center;
    }

    .homepage {
        width: 35%;
    }

    .cue,
    .maindesc {
        width: 90%;
    }

    #nav-bar li {
        margin-left: 0;
    }

    .tips {
        justify-content: center;
    }

    .smallnav {
        justify-content: center;
        margin-bottom: 1em;
    }

    #controls {
        margin-top: 0;
    }

    #setup {
        padding-left: 1em;
    }

    .inlessoncue {
        text-align: center;
    }

    #sprites {
        text-align: left;
    }

    a.topnav.on {
        background-color: var(--main-light);
        color: var(--main-dark);
    }

    #explaincalc {
        font-size: 1.2rem;
    }
    .object-and-details {
        width: 80%;
    }
}

@media only screen and (max-width: 600px) {
    #nav-bar ul {
        flex-direction: column;
    }

    .tips {
        justify-content: center;
    }

    #controls {
        text-align: center;
    }

    .homepage {
        margin: 0;
        width: 50%;
        text-align: center;
    }

    .navcontainer,
    .navcontainercover {
        flex-direction: column;
        align-items: center;
    }

    #author,
    #designmethods {
        width: 100%;
    }

    .cue,
    .maindesc {
        width: 90%;
    }

    #nav-bar li {
        margin-left: 0;
    }

    #controls {
        margin-top: 0;
    }

    svg {
        display: none;
    }

    #sprites {
        text-align: left;
    }

    a.topnav.on {
        background-color: var(--main-light);
        color: var(--main-dark);
    }

    #explaincalc {
        font-size: 1.2rem;
    }

    .object-and-details {
        width: 90%;
    }
}