/* CSS reset */
@import "reset.css";

/* Typography */
@import url(https://fonts.bunny.net/css?family=titillium-web:400,700);

/* 
 * theme configuration 
 */
:root {
  /* colors */
  --color-background-dark: #658029;
  --color-background-active: #99d420;
  --color-background-standard: #dddfcf;
  --color-background-light: #f6f8f0ff;
  --color-text-light: #ffffff;
  --color-text-dark: #231f20;
  --color-text-highlight: var(--color-background-dark);

  /* opacities*/
  --seethrough-box-opacity: 0.85;

  /* spacing */
  --header-height: 8vh;
  --column-gap: 2vw;
  --half-gap: calc(var(--column-gap) / 2);
  --double-gap: calc(var(--column-gap) * 2);
  --large-column-width: 70vw;
  --small-column-width: calc(
    ((100vw - var(--large-column-width)) / 2) - var(--column-gap)
  );

  /* typographical scale */
  font-family: "Titillium Web", sans-serif;
  font-size: 1.2vw;
  color: var(--color-text-dark);
}

/*
 * TODO
 * - proper scrollbar styling
 */

html {
  scroll-behavior: smooth;
}

body {
  width: 100vw;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  background-color: var(--color-background-standard);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--color-text-dark);
}

header nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-background-standard);
  opacity: var(--seethrough-box-opacity);
  z-index: 1;

  & .logo {
    display: block;
    height: fit-content;
    align-self: center;
  }

  & img {
    width: calc(var(--small-column-width) - var(--helf-gap));
    padding-left: var(--half-gap);
  }

  & .menu {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    list-style-type: none;

    & li {
      position: relative;
      top: 0;
      left: 0;
      height: 100%;
      padding: 0 var(--half-gap);
      line-height: var(--header-height);
      vertical-align: middle;
      font-weight: 600;
    }

    & li:hover {
      background-color: var(--color-background-dark);
    }

    & a {
      display: block;
      height: 100%;
      text-decoration: none;
      color: var(--color-text-dark);
    }

    & li:hover a {
      color: var(--color-text-light);
    }

    & .submenu {
      position: absolute;
      left: 0;
      list-style-type: none;
      padding: 0;
      display: none;
      background-color: var(--color-background-dark);
      color: var(--color-text-light);
    }

    & li:hover .submenu {
      display: block;
    }

    & .submenu li {
      line-height: 1.5;
      font-size: 0.95rem;
    }
  }
}

.layout-columns {
  display: grid;
  grid-template-columns: var(--small-column-width) var(
      --large-column-width
    ) var(--small-column-width);
  grid-column-gap: var(--column-gap);
}

.content-section {
  width: 100vw;
  min-height: 100vh;
  margin: 0;
  box-sizing: border-box;
  position: relative;
  top: 0;
  left: 0;
  padding-top: calc(var(--header-height) * 2);
  padding-bottom: var(--header-height);
}

.content-sub-section {
  padding-top: var(--header-height);
}

.highlights-section {
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  overflow-y: clip;

  & img {
    height: inherit;
    width: 100%;
  }
}

.section-label-active {
  background-color: var(--color-background-active);
  color: var(--color-text-light);
  width: 100%;
  height: fit-content;
  text-align: center;
  font-size: 1rem;
}

.section-label-idle {
  background-color: var(--color-background-dark);
  color: var(--color-text-light);
  width: 100%;
  height: fit-content;
  text-align: center;
  font-size: 0.98rem;
}

.content-pane {
  width: 100%;

  & p {
    width: 80ch;
    margin: 0 auto;
  }

  & ul {
    width: 80ch;
    margin: auto;
  }
}

.summary {
  display: flex;
  flex-direction: row;
  width: 100%;
}

.summary .thumbnail {
  width: 50%;
}

.summary .content {
  padding: var(--half-gap);
  background-color: var(--color-background-light);

  & h3 {
    margin-bottom: 1rem;
  }

  & p {
    width: 100%;
  }
}

.summary-list {
  list-style-type: none;
  padding: 0;
  margin: 0 !important;
}

span.highlight {
  color: var(--color-text-highlight);
}

header .content-pane {
  background-color: var(--color-background-standard);
  opacity: var(--seethrough-box-opacity);
  padding: var(--half-gap);
}

.credits-roll {
  display: flex;
  width: 80ch;
  margin: auto;

  & figure {
    display: flex;
    flex-direction: row;
    margin: 0.5rem 0;
  }

  & img {
    height: 3em;
  }
}

#research {
  min-height: fit-content;
}

#contacts {
  min-height: fit-content;
}

@media screen and (max-width: 500px) {
  :root {
    --header-height: 6vh;
    --half-gap: 0.5rem;
    font-size: 14pt;
  }

  h1,
  h2 {
    padding: 0.5rem 0;
  }

  header nav.layout-columns {
    display: flex;
    position: static;
    justify-content: center;

    & .logo {
      height: var(--header-height);
      padding: 0.5rem;

      & img {
        height: 100%;
      }
    }
  }

  section.layout-columns {
    display: flex;
    flex-direction: column;
    padding-top: 0;
  }

  section.highlights-section {
    position: static;
  }

  .section-label-active {
    vertical-align: middle;
  }

  .content-pane {

    & ul {
      width: revert;

      &.summary-list li {
        font-style: italic;
      }
    }

    & p {
      width: 100%;
      margin: 1rem 0;
    }
  }

  .credits-roll {
    width: 100%;
    flex-direction: column;
  }
}