@font-face {
    font-family: "IBMPlex";
    src: url('IBMPlexSerif-Regular.ttf');
}

@font-face {
    font-family: "IBMPlex-Bold";
    src: url('IBMPlexSerif-Bold.ttf');
}

:root {
  --width:calc((60*16px/2) + 2rem);
  --color_code:#f6f8fa
}
*,
:before,
:after {
  box-sizing:border-box
}
html,
body {
  min-height: 90vh;
  margin:0;
  font:16px "IBMPlex";
}
body {
  flex-direction:column;
  line-height:1.5;
  display:flex;
  overflow-y:scroll
}

body {
    background-color: #1e1e1e;
    color: white;
    font-family: "IBMPlex";
}

nav { 
    margin-top: 15px;
    max-width:var(--width);
    width:100%;
    margin-left:auto;
    margin-right:auto;
    padding-left:1rem;
    padding-right:1rem;
    color: gray;
}

article { 
    max-width:var(--width);
    width:100%;
    margin-top: 30px;
    margin-left:auto;
    margin-right:auto;
    padding-left:1rem;
    padding-right:1rem;
}

article p {
    margin-top: 50px;
    text-align: right;
    font-size: 12px;
    color:gray;
}

article h1 {
    font-family: "IBMPlex-Bold";
}

nav a {
    text-decoration: none;
    color: white;
    font-size: 24px;
}

.list ul {
    display: flex;
    margin-top: 50px;
    max-width:var(--width);
    width:100%;
    margin-left:auto;
    margin-right:auto;
    padding-left:1rem;
    padding-right:1rem;
    list-style: none;
    list-style-position: inside;
    color:gray;
}

.list ul a {
    gap: 20px;
    font-size: 16px;
    text-decoration: none;
    color: white;
}

body {
    display: flex;
    flex-direction: column;
}

.list {
    flex: 1;
}

article {
    flex: 1;
}

footer {
    max-width:var(--width);
    width:100%;
    margin-left:auto;
    margin-right:auto;
    padding-left:1rem;
    padding-right:1rem;
    list-style: none;
    list-style-position: inside;
    color:gray;
    text-align: right;
}

@media screen and (max-width: 800px) {
    body {
        margin:0;
    }

    article {
        font-size: 15px;
    }

    article h1 {
        font-size: 20px;
    }

    article p {
        font-size: 10px;
    }

    nav {
        font-size: 11px;
    }
    
    nav a {
        font-size: 15px;
    }
}