/*
 * Additional fonts
 */
/* LinBiolinum is sans-serif; see linuxlibertine.org */
@font-face {
  font-family: "LinBiolinum";
  src: url("../fonts/LinLibertine/LinBiolinum_R.otf") format("opentype");
}

@font-face {
  font-family: "LinBiolinum";
  font-weight: bold;
  src: url("../fonts/LinLibertine/LinBiolinum_RB.otf") format("opentype");
}

@font-face {
  font-family: "LinBiolinum";
  font-style: italic;
  src: url("../fonts/LinLibertine/LinBiolinum_RI.otf") format("opentype");
}

/*
 * Modified Pico settings (standard Pico) 
 */
:root {
  --pico-font-family-sans-serif: LinBiolinum, system-ui, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, Helvetica, Arial, "Helvetica Neue", sans-serif,
    var(--pico-font-family-emoji);

  --bg-gradient-light: linear-gradient(to right, #FCEFD9, white, #FCEFD9);
  --bg-gradient-dark: linear-gradient(to right, #4D3700, black, #4D3700);
}

a {
  --pico-text-decoration: none;
}


/* 
 * Override breakpoint settings for hamburger menu (overrides Yohn's Pico fork
 */
@media (max-width: 767px) {
  nav[role=navigation][data-breakpoint=my-md] {
    flex-wrap: wrap;
    overflow: hidden;
  }

  nav[role=navigation][data-breakpoint=my-md]:has(input[type=checkbox]:checked) {
    overflow: visible;
  }

  nav[role=navigation][data-breakpoint=my-md] label {
    display: block;
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    width: 90vw;
    max-height: 0;
    margin: 0 auto;
    background-color: var(--pico-muted-border-color);
    box-shadow: var(--pico-box-shadow);
    opacity: 0;
    transition: max-height var(--pico-transition), opacity var(--pico-transition);
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] li {
    width: calc(100% - var(--pico-nav-link-spacing-vertical) * 2);
    margin: calc(var(--pico-nav-link-spacing-vertical) * 0.5) var(--pico-nav-link-spacing-vertical);
    padding: 0;
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] li>details.dropdown {
    width: 100%;
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] li>form[role=search] {
    margin-block-end: 0;
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] a {
    display: block;
    margin: 0;
    border-radius: 0;
    border-block-end: 1px solid transparent;
    transition: border-color var(--pico-transition), color var(--pico-transition);
  }

  nav[role=navigation][data-breakpoint=my-md]>[role=list] a:hover {
    border-bottom-color: var(--pico-underline);
    text-decoration: none;
  }

  nav[role=navigation][data-breakpoint=my-md] input[type=checkbox]:checked~[role=list] {
    display: block;
    max-height: 100vh;
    opacity: 1;
  }
}


/*
 * Settings specific to breakpoints
 */
@media (min-width: 576px) {
  .card {
    max-width: calc(50% - var(--pico-block-spacing-horizontal) / 2);
  }
}

@media (min-width: 1024px) {
  .card {
    max-width: calc(33% - var(--pico-block-spacing-horizontal) * 2 / 3);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1170px;
  }
}

@media screen and (min-width: 1536px) {
  .card {
    max-width: calc(25% - var(--pico-block-spacing-horizontal) * 3 / 4);
  }

  .container {
    max-width: 1280px;
  }
}

/*
 * Light/Dark mode settings
 */

/* Light color scheme (Default) */
/* Can be forced with data-theme="light" */
[data-theme="light"],
:root:not([data-theme="dark"]) {
  #sun-moon:not(:checked)::before {
    background-color: var(--pico-color);
  }

  #sun-moon:not([aria-invalid]) {
    border-color: var(--pico-primary);
  }

}

/* Dark color scheme (Auto) */
/* Automatically enabled if user has Dark mode enabled */
@media only screen and (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    #jumbotron-title {
      border-bottom: thin solid white;
    }

    #main-header h1,
    #site-footer p {
      background: var(--bg-gradient-dark);
    }
  }
}

/* Dark color scheme (Forced) */
/* Enabled if forced with data-theme="dark" */
[data-theme="dark"] {
  #jumbotron-title {
    border-bottom: thin solid white;
  }

  #main-header h1,
  #site-footer p {
    background: var(--bg-gradient-dark);
  }
}

/*
 * Specific elements on the page
 */
/* Jumbotron */
#jumbotron-title {
  border-bottom: thin solid black;

  h1 {
    font-size: 3rem;
    font-weight: 500;
    margin-bottom: calc(var(--pico-spacing) * 0.5);

    a {
      color: var(--pico-h1-color);
    }
  }
}

#jumbotron-subtitle h2 {
  font-size: 2.1rem;
  font-weight: 500;
  margin-top: calc(var(--pico-spacing) * 0.5);
}

/* Navbar */
#site-navbar {
  ul {
    /*  box-shadow: var(--pico-card-box-shadow); */
    margin-left: 0;
    margin-right: 0;

    li:last-child {
      padding-right: 0;
    }
  }

  a {
    font-size: calc(var(--pico-font-size) * 0.9);
    font-weight: bold;
    text-align: right;
  }
}

#hamburger-label {
  font-size: calc(var(--pico-font-size) * 2);
}

#sun-moon {
  background-color: var(--pico-primary);
}

#sun-moon-label {
  margin-left: auto;
  margin-right: 0;
}

/* Main content */
#main-header h1,
#site-footer p {
  background: var(--bg-gradient-light);
  box-shadow: var(--pico-card-box-shadow);
  padding: calc(var(--pico-block-spacing-horizontal) * 0.5) calc(var(--pico-block-spacing-vertical) * 0.5);
  text-align: center;
}

.cards {
  display: flex;
  flex-flow: row wrap;
  list-style-type: none;
  padding-left: inherit;
  justify-content: space-between;
  /*   column-gap: var(--pico-block-spacing-horizontal); */
}

.card {
  display: flex;
  flex-flow: column nowrap;
  flex: 1 0 100%;
  list-style-type: none;
  padding-left: calc(var(--pico-spacing) * 0.5);
  padding-right: calc(var(--pico-spacing) * 0.5);
  box-shadow: var(--pico-card-box-shadow);
}

.article-header {
  flex: 0 0 3.5lh;
  margin-left: calc(var(--pico-nav-element-spacing-horizontal) * -1);
  margin-right: calc(var(--pico-nav-element-spacing-horizontal) * -1);

  h3 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: auto;
  }
}

.article-body {

  text-align: center;

  img {
    height: 270px;
  }
}

.article-footer {
  margin-left: calc(var(--pico-nav-element-spacing-horizontal) * -1);
  margin-right: calc(var(--pico-nav-element-spacing-horizontal) * -1);
}