@font-face {
    font-family: "HK Grotesk";
    src: url("assets/hk-grotesk.woff2"), url("assets/hk-grotesk.woff");
}

* {
    padding: 0;
    margin: 0;
}

h1 {
    font-size: 36px;
    line-height: 1.25;
    font-weight: 400;
}

body {
    font-family: "HK Grotesk", sans-serif;
    font-size: 36px;
    line-height: 1.25;

    background-color: #ffffff;
    color: #333333;    
}

header {
    position: fixed;
    top: 36px;
    left: 36px;
    z-index: 1;
    transition: color 0.5s;
}

header.white {
    color: #ffffff;
}

section {
    background-color: #c8dee0;
    min-height: 100vh;
    padding: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

div.content {
    position: relative;
}

div.square {
    height: 100px;
    width: 100px;
    background-color: #d54156;

    position: absolute;
    top: 50px;
    left: -50px;
    z-index: 0;
}

div.content img {
    position: relative;
}

div.circle {
    height: 100px;
    width: 100px;
    background-color: #5982a0 ;

    position: absolute;
    bottom: 50px;
    right: -50px;

    border-radius: 50%;
}

section.s2 {
    background-color: #c5c5c5;
}

section.s2 div.square {
    background-color: #d6ac35;
}

section.s2 div.circle {
    background-color: #be3c52;
}

section.s3 {
    background-color: #292121;
}

section.s3 div.square {
    background-color: #5f3736;
}

section.s3 div.circle {
    background-color: #6e5f67;
}

section.s4 {
    background-color: #f3f1f2;
}

section.s4 div.square {
    background-color: #d54156;
}

section.s4 div.circle {
    background-color: #5982a0;
}

div.progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 10px;
    background-color: #333333;
    z-index: 1;
    transition: background-color 0.5s;
}

div.progress.white {
    background-color: #ffffff;
}