:root {
  --overscroll-bg-color: white;
  --main-bg-color: white;
  --main-color: #263238;
  --main-headline-color: black;
  --secondary-headline-color: #828282;
  --tertiary-headline-color: rgb(0, 90, 177);
  --figcaption-color: white;
  --figcaption-bg-color: rgba(0, 0, 0, 0.75);
  --link-color: red;
  --primary-heading-font: 'Amstelvar-Roman-VF';
  --secondary-heading-font: 'Amstelvar-Roman-VF';
  --tertiary-heading-font: 'Amstelvar-Roman-VF';
  --body-font-size: 12pt;
  --body-min-width: 240px;
  --body-max-width: 1000px;
  --main-current-width: var(--body-max-width);
}

@font-face {
  font-family: 'Amstelvar-Roman-VF';
  src: url('../files/Amstelvar-Roman-VF.woff2');
  font-display: swap;
}

html {
  background-color: var(--overscroll-bg-color);
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  font-size: calc(var(--body-font-size) + 0.1vw);
  margin: 0;
  padding: 0;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Droid Sans, Helvetica Neue;
  background-color: var(--main-bg-color);
  color: var(--main-color);
  min-height: 100vh;
  min-width: var(--body-min-width);
  max-width: var(--body-max-width);
  margin: 0;
  padding: 0 0.25rem;
}

body > header {
  background-color: var(--main-headline-color);
  padding: 0 0.25rem;
}

header img {
  max-width: 100%;
}

article {
  margin-bottom: 2.75rem;
}

h1 {
  font-family: var(--primary-heading-font), system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Droid Sans, Helvetica Neue;
  font-variation-settings: 'opsz' 144;
  color: var(--main-headline-color);
  cursor: pointer;
  width: 100%;
  border-bottom: solid 0.2rem var(--main-headline-color);
  font-size: 1.5rem;
  margin: 0.5rem 0;
}

h2 {
  font-family: var(--secondary-heading-font), system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Droid Sans, Helvetica Neue;
  font-variation-settings: 'opsz' 77;
  color: var(--secondary-headline-color);
  cursor: pointer;
  width: 100%;
  border-bottom: solid 0.1rem var(--secondary-headline-color);
  font-size: 1.25rem;
  margin: 0.5rem 0;
}

h3 {
  font-family: var(--tertiary-heading-font), system-ui, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen, Ubuntu, Cantarell, Droid Sans, Helvetica Neue;
  font-variation-settings: 'opsz' 77;
  color: var(--tertiary-headline-color);
  width: 100%;
  border-bottom: solid 0.1rem var(--tertiary-headline-color);
  font-size: 1.1rem;
  margin: 0.5rem 0;
}

a {
  color: var(--main-color);
  text-decoration: none;
  border-bottom: solid var(--link-color) 0.1rem;
  margin-bottom: -0.05rem;
}

.icon {
  height: 1.25rem;
  width: 1.25rem;
  margin: 0 0.5rem;
  vertical-align: middle;
}

.metadata {
  font-size: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  padding: 0.25rem 0;
  border-bottom: solid 0.1rem var(--secondary-headline-color);
}

.metadata span {
  white-space: pre;
}

summary {
  cursor: pointer;
  outline: none;
  position: relative;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  background-color: white;
  content: url('../files/readmore.svg');
  position: absolute;
  right: 0.25rem;
  margin-top: -0.5rem;
}

summary:focus::after {
  outline: solid 0.25rem orange;
  outline: -webkit-focus-ring-color auto 5px;
}

details[open] > summary {
  color: transparent;
  position: absolute;
}

details[open] > summary::after {
  content: '';
  outline: none;
}

figure {
  margin: 0.25rem 0;
  position: relative;
  cursor: pointer;
}

figure img,
figure video {
  display: block;
  width: 100%;
  height: auto;
  outline: solid 1px var(--secondary-headline-color);
}

figcaption {
  position: absolute;
  left: 0;
  right: 0;
  font-size: 0.8rem;
  padding: 0.5rem;
  text-align: center;
  background-color: var(--figcaption-bg-color);
  color: var(--figcaption-color);
}

picture + figcaption {
  bottom: 0;
}

video + figcaption {
  top: 0;
}