@import url("https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&family=Roboto+Slab:wght@100..900&display=swap");

/* CSS variables */
:root {
  --font-heading: "Roboto Slab", sans-serif;
  --font-body: "Open Sans", sans-serif;
  --colour-first: #071d49;
  --colour-second: #0a70dc;
  --colour-second-highlight: #0857ab;
  --colour-third: #eff7ff;
  --colour-third-highlight: #c2e0ff;
  --bold: 700;
}

/* Global styles */

body {
  font-family: var(--font-body);
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  color: var(--colour-first);
}

/* Navigation styles */

#main-nav {
  background-color: var(--colour-third);
}

#main-nav a {
  color: var(--colour-first);
}

#main-nav li:hover {
  background-color: var(--colour-third-highlight);
}

.btn.qs-btn {
  background-color: var(--colour-second);
  color: #fff;
}

.btn.qs-btn:hover {
  background-color: var(--colour-second-highlight);
}

.btn.qs-btn-outline {
  color: var(--colour-second);
}

.btn.qs-btn-outline:hover {
  color: var(--colour-first);
  background-color: var(--colour-third);
}

.nav-active {
  font-weight: bold;
}

/* Header section */

#header-title {
  font-size: 1rem;
}

#header-logo {
  display: none;
}

/* Main section */

.heading-link {
  text-decoration: none;
  color: var(--colour-first);
}

.heading-link:hover {
  text-decoration: underline;
}

.feature-img {
  display: block;
  margin: 2rem auto;
  max-width: 100%;
  height: auto;
}

.post-list-desc {
  display: none;
}

.post-meta {
  color: var(--colour-second-highlight);
  font-weight: var(--bold);
}

.comment-heading {
  color: var(--colour-second-highlight);
  font-family: var(--font-body);
  font-weight: var(--bold);
  font-size: 1rem;
}

.post-thumb {
  border-top-left-radius: 0.25rem;
  border-top-right-radius: 0.25rem;
}

/* Footer section */

#base-footer {
  color: var(--colour-first);
  background-color: var(--colour-third);
}

.social-link {
  font-size: 2rem;
  padding: 1rem;
  color: var(--colour-second);
}

.social-link:hover {
  color: var(--colour-second-highlight);
}

/* Error pages */

/* Media queries */

@media only screen and (min-width: 375px) {
  #header-title {
    font-size: 1.5rem;
  }
}

@media only screen and (min-width: 768px) {
  #header-title {
    font-size: 2rem;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .post-thumb {
    border-top-right-radius: 0;
  }
}

@media only screen and (min-width: 1200px) {
  .post-thumb {
    border-bottom-left-radius: 0.25rem;
  }
}