:root {
  --justify-important: center;
  --justify-normal: left;
  --line-height: 1.7;

  --hover-brightness: 0.5;

  --main-width: 1080px;
  --main-color-primary: #333;
  --main-color-secondary: #999;

  --section-hpadding: 20px;
  --section-vpadding: 100px;
  --article-hpadding: 20px;
  --article-vpadding: 50px;

  --bg-color-primary: #fefefe;

  --font: 110% "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell,
    "Helvetica Neue", sans-serif;

  --color-accent: #8e2d25;
  --color-link: #0080e9;

  --nav-font: bold;
  --nav-background: #16191c;
  --nav-color-fg: #9aa5b4;
  --nav-shadow: 2px 2px 10px black;

  --border-radius: 4px;

  --card-width: 264px;
  --card-border-color: #16191c;
  --card-padding: 15px;
  --card-shadow: 2px 2px 10px #9aa5b441;
}

@media (max-width: 1024px) {
  header {
    line-height: 1;
  }
}

input.hidden {
  display: none;
}

/*********************************************************************************/
/* Layout */
body {
  background: var(--bg-color-primary);
  color: var(--main-color-primary);
  font: var(--font);
  line-height: var(--line-height);
  margin: 0;
  padding: 0;
}

main {
  margin: 0 auto;
  max-width: var(--main-width);
}

.centered {
  display: flex;
  flex-wrap: wrap;
  justify-content: var(--justify-important);
}

section {
  display: flex;
  flex-wrap: wrap;
  justify-content: var(--justify-important);
  padding-top: var(--section-vpadding);
  padding-bottom: var(--section-vpadding);
  padding-left: var(--section-hpadding);
  padding-right: var(--section-hpadding);
}

article {
  padding-top: var(--article-vpadding);
  padding-bottom: var(--article-vpadding);
  padding-left: var(--article-hpadding);
  padding-right: var(--article-hpadding);
}

section img {
  max-width: 100%;
}

article aside {
  /* border: 1px solid var(--card-border-color); */
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  margin: 1rem;
  padding: var(--card-padding);
  width: var(--card-width);
}

article aside img.photo {
  width: calc(var(--card-width) + 2 * var(--card-padding));
  height: 300px;
  object-fit: cover;
  margin-left: calc(var(--card-padding) * -1);
  margin-right: calc(var(--card-padding) * -1);
  margin-top: calc(var(--card-padding) * -1);
}

article a.logo aside {
  border: none;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
}

article a.logo aside img {
  max-width: 100%;
}

/*********************************************************************************/
/* Headers */
header {
  text-align: var(--justify-important);
  position: -webkit-sticky;
  position: sticky;
  top: 60px;
  background-color: var(--bg-color-primary);
  width: 100%;
  border-top: solid 1px var(--bg-color-primary);
  border-bottom: solid 1px var(--color-accent);
}

.anchor {
  scroll-margin-top: 60px;
}

/*********************************************************************************/
/* Nav */

nav {
  font: var(--nav-font);

  z-index: 1;
  position: -webkit-sticky;
  position: sticky;
  top: -1px;
  background: var(--nav-background);
  box-shadow: var(--nav-shadow);

  align-items: center;
  display: flex;
  justify-content: space-between;
}

nav ul {
  list-style: none;
  padding: 0;
  margin-left: auto;
  margin-right: auto;
}

nav ul li {
  display: inline-block;
  margin: 0 0.5rem;
  position: relative;
  text-align: left;
}

nav a {
  color: var(--nav-color-fg);
}

nav a:hover {
  color: var(--nav-color-fg);
  filter: none;
}

/*********************************************************************************/
/* Typography */

ol li,
ul li {
  padding: 0.2rem 0;
}

p {
  margin: 0.75rem 0;
  padding: 0;
  width: 100%;
}

small {
  color: var(--main-color-secondary);
}

/*********************************************************************************/
/* Links */

a {
  color: var(--color-link);
  display: inline-block;
  font-weight: bold;
  text-decoration: none;
}

a:active {
  text-decoration: underline;
}

a:hover {
  filter: brightness(var(--hover-brightness));
  text-decoration: underline;
}

a b,
a em,
a i,
a strong {
  border-radius: var(--border-radius);
  display: inline-block;
  font-size: medium;
  font-weight: bold;
  line-height: var(--line-height);
  margin: 0.5rem 0;
  padding: 1rem 2rem;
}

a b,
a strong {
  background-color: var(--color-link);
  border: 2px solid var(--color-link);
  color: var(--bg-color-primary);
}

a em,
a i {
  border: 2px solid var(--color-link);
  border-radius: var(--border-radius);
  color: var(--color-link);
  display: inline-block;
  padding: 1rem 2rem;
}