style.css

:root {
    --primary-color: #00878f;
    --secondary-color: #e47128;
    --tertiary-color: #62AEB2;
    --quaternary-color: #E5AD24;
    --quinary-color: #8C7965;
    --border-color: #ECF1F1;
    --code-border: #dae7e7;
}

body {
    font-family: Poppins;
    background-size: 40px 40px;
    max-width: 80vw;
    margin: auto;
}

h1 {
    color: var(--primary-color);
}

h2 {
    color: var(--secondary-color);
}

h3 {
    border-bottom: 0.15em solid var(--border-color);
}

.subtitle {
    font-size: .85em;
    padding: 0;
}

ul {
    margin: 0;
}

.materials-table {
    width: 100%;
    border-bottom: 10px;
}

code {
    overflow: hidden;
    margin: clamp(1.375rem, 1.2rem + .89vw, 2rem) 0;
    position: relative;
    border: .15em solid var(--border-color);
    font-size: clamp(18vw, 1.125rem);
    font-family: 'Consolas';
    border-radius: 10px;
    padding: 0 .35em 0 0.35em;
}

.inline-code {
    font-family: 'Consolas';
    border: .1em solid var(--code-border);
    border-radius: .35em;
    padding: .15em .35em .15em 0.35em;
    background-color: var(--border-color);
    color: var(--primary-color);
}

.accordion {
    cursor: pointer;
    text-align: left;
    border: var(--border-color);
    transition: 0.4s;
}

.active,
.accordion:hover {
    background-color: #ccc;
}

.panel {
    display: none;
    overflow: hidden;
    border: .15em solid var(--code-border);
    border-radius: 10px;
    margin-top: 2em;
    margin-bottom: 2em;
    padding: 20px;
}

.fa {
    color: var(--border-color)
}

footer {
    text-align: center;
    background-color: var(--border-color);
    bottom: 0;
    padding-bottom: 2em;
}

.center {
    display: flex;
    justify-content: center;
}


.alert {
    border-style: solid;
    border-radius: 10px;
    margin-top: 2em;
    margin-bottom: 2em;
    padding: 20px;
}

.alert-info {
    border: .15em solid var(--tertiary-color);
}

.alert-info-text {
    color: var(--tertiary-color);
}

.alert-info-header::before {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    background-image: url('https://img.icons8.com/?size=1000&id=dbEL2NLmlcac&format=png&color=62AEB2');
    background-size: contain;
    background-repeat: no-repeat;
    transform: translateY(10%);
    color: var(--tertiary-color);
    display: inline-block;
    padding-left: 25px;
}

.alert-info-header::after {
    content: 'Note.';
    margin-left: 25px;
    color: var(--tertiary-color);
    font-weight: bold;
}

.alert-code{
    border: .15em solid var(--border-color);
}

.alert-code-header::before{
    font-family: 'FontAwesome';
    content: '\f121';
    font-weight: bold;
    margin-right: .5em;
}

.alert-code-header::after{
    content: "Code Explanation";
    font-weight: bold;
}

.vcc {
    color: #E74C3C;
}

.alert-warning {
    border: .15em solid var(--quaternary-color);
}

.alert-warning-text {
    color: var(--quaternary-color);
}

.alert-tip {
    border: .15em solid var(--quinary-color);
}

.alert-tip-text {
    color: var(--quinary-color);
}

ol {
    counter-reset: step-count;
    list-style-type: none;
    margin-left: 30px;
}

ol li {
    margin: 1em;
}

ol li::before {
    content: "Step " counter(step-count);
    counter-increment: step-count;
    font-weight: bold;
    color: var(--secondary-color);
    border-style: solid;
    border-width: .15em;
    border-radius: 5em;
    padding: 0.25em 0.5em 0.25em 0.5em;
    margin: .5em;
    position: absolute;
    transform: translateY(-40%) translateX(-140%);
}

.method-list {
    counter-reset: method-count;
}

.method-list-item::before {
    content: "Method " counter(method-count);
    counter-increment: method-count;
    font-weight: bold;
    background-color: transparent;
    color: var(--quaternary-color);
}

.fa {
    color: inherit;
}

a:link {
    text-decoration: none;
}

.tooltip {
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted;
    cursor: pointer;
}

.tooltip .tooltiptext {

    visibility: hidden;
    width: 25em;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    text-align: center;
    border-radius: .5em;
    padding: 0.25em 0.5em 0.25em 0.5em;

    position: absolute;
    z-index: 1;

    bottom: 110%;
    margin-left: -16.25em;
}

.tooltip .tooltiptext::after {
    content: " ";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: black transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
}

.material {
    color: var(--secondary-color);
}

#progress-bar {
    --scroll-amount: 10%;
    background-color: var(--secondary-color);
    width: var(--scroll-amount);
    height: 4px;
    position: fixed;
    top: 0;
    left: 0;
    margin: 0;
}

.table-of-contents li {
    list-style: none;
}

.table-of-contents li::before {
    font-family: 'FontAwesome';
    content: '\f105';
    /* > instead of default bullet*/
    margin: 0 5px 0 -15px;
    font-weight: bold;
}

.table-of-contents li.visited::before {
    font-family: 'FontAwesome';
    content: '\f00c';
    /*check mark to indicate the section has been visited*/
    margin: 0 5px 0 -15px;
    font-weight: bold;
}

.table-of-contents li ul li:hover {
    color: var(--tertiary-color);
    border-radius: 10px;
}

.table-of-contents a:visited{
    color: var(--primary-color);
}