:root {
    box-sizing: border-box;

    font-size: 16px;

    /* define these as CSS vars */

    --color-darkest: #11131A;
    --color-accent: #03ff7b;
    --color-accent-darker: #10ca60;
    --color-whiteish: #FCFAFA;
    --color-darkish: #45474F;
    --color-grey: #92949F;
    --color-grey-alt1: #D9D9D9;
    --color-grey-alt2: #EFEFEF;
    --color-focus: #73A2FF;
    --color-red: #E00C0C;
    --color-red-darker: #B80C0C;
    --color-orange: #ED933F;
    --color-orange-darker: #D17F3A;
    --color-green: #3AD365;
    --color-green-darker: #2E9F4A;
    --color-pure-white: #FFFFFF;
    --color-blue: #0038b8;
    --color-blue-darker: #002e96;
}

*, ::before, ::after {
    box-sizing: inherit;
}

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: "Inter", sans-serif;
}

a {
    text-decoration: none;
    color: var(--color-blue);
}

a:hover {
    text-decoration: underline;
}

main {
    padding: 4rem;
    background-color: var(--color-whiteish);
    color: var(--color-darkish);
}

.button {
    display: flex;
    align-items: center;
    flex-direction: column;
    border-radius: 8px;
    padding: 1rem;
    background-color: var(--color-blue);
    color: var(--color-pure-white);
    font-size: 1.5rem;
}

.button:hover {
    background-color: var(--color-blue-darker);
}

.github-button {
    margin-top: 2rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.github-button > img {
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.5rem;
}

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

p, ul {
    font-size: 1.2rem;
}

li {
    margin-bottom: 0.5rem;
}

.h1 {
    font-size: 2.5rem;
}

.h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.h3 {
    font-size: 1.7rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.h4 {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 1rem;
}