:root {
  --main-text-color: #222;
  --main-background-color: #fff;
  --link-color: #0033cc;
}

@media (prefers-color-scheme: dark) {
  :root {
    --main-text-color: #dee2e6;
    --main-background-color: #212529;
    --link-color: #809fff;
  }
}

body {
  color: var(--main-text-color);
  background: var(--main-background-color);
}

a {
  color: var(--link-color);
}

/* Project proposals. */

.projects h3 {
  margin: 0 0;
}

.projects-proposal article > p:first-of-type {
  margin: 0 0;
}

.projects-current article > p, .projects-defended article > p {
  margin: 0.5em 0;
}

/* Page header. */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #111519;
  padding: 1em 2em;
}

header h1 {
  margin: 0;
}

header ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

header li {
  display: inline;
  float: left;
}

header a {
  display: block;
  padding: 8px;
}

header a:hover {
  background-color: #212529;
}

/* Container responsive design. */

.container {
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Tailwind like */

.leading-4 {
  line-height: 1.25rem;
}