:root {
  /* Some variables */
  --background-color: teal;
  --main-button-color: #a4a4a4;
  --popup-width: 35em;
  --popup-height: 80%;
  --popup-background-blur: blur(2px);
  --picture-size: 350px;
}

html,
body {
  /* Setting the default padding and margin to 0 for html AND body elements*/
  margin: 0;
  padding: 0;
  font-family: Roboto, Oxygen, -apple-system, BlinkMacSystemFont, Segoe UI,
    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;

  color: black;
}

* {
  box-sizing: border-box;
}

/* Change Firefox scrollbar */
.scrollbar-container {
  scrollbar-width: thin;
  scrollbar-color: #777 #aaac;
}

/* Change Chromium and safari scrollbar */
.scrollbar-container::-webkit-scrollbar {
  width: 1vw;
}

.scrollbar-container::-webkit-scrollbar-thumb {
  background-color: #7779;
}
.scrollbar-container::-webkit-scrollbar-thumb:hover {
  background-color: #777;
}

.scrollbar-container::-webkit-scrollbar-track {
  background-color: #aaac;
}

#root {
  background-color: var(--background-color);
  position: absolute;
  overflow: auto;
  width: 100%;
  height: 100%;
  margin: 0px;
  padding: 0px;
}

#content {
  display: flex;
  flex-flow: column;
  align-items: center;
}

#intro-text {
  width: 40em;
  align-self: center;
  display: flex;
  flex-flow: column;
}

.title {
  align-self: center;
}

#pictures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 3em;
  row-gap: 3em;
}

.picture-div {
  display: flex;
  flex-flow: column;
  align-items: center;
  margin-bottom: 1em;
}

#main-canvas {
  background-color: darkslategrey;
  width: var(--picture-size);
  height: var(--picture-size);
}

#main-svg {
  background-color: lightslategray;
  width: var(--picture-size);
  height: var(--picture-size);
}

#popup {
  position: fixed;
  width: var(--popup-width);
  height: var(--popup-height);
  display: none;
  flex-flow: column;
  align-items: center;
  background-color: var(--background-color);
  border-radius: 5px;
  z-index: 999;
  box-shadow: 0 2px 8px #aaa;
  padding: 20px;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  overflow: auto;
}

#popup-content {
  margin: 1em;
}

.blur {
  -webkit-filter: var(--popup-background-blur);
  -moz-filter: var(--popup-background-blur);
  -o-filter: var(--popup-background-blur);
  -ms-filter: var(--popup-background-blur);
  filter: var(--popup-background-blur);
}

.main-button {
  background-color: var(--main-button-color);
  width: -moz-fit-content;
  width: fit-content;
  cursor: pointer;
  padding: 0.3em;
  border-radius: 5px;
  box-shadow: 4px 4px 7px #666d;
}

.close-button {
  align-self: flex-end;
  position: absolute;
  right: 10px;
}

.picture-title {
  text-align: center;
  font-weight: bold;
}

@media screen and (max-height: 721px), (max-width: 900px) {
  #pictures {
    grid-template-columns: 1fr;
  }
  .picture-div {
    width: auto;
  }
  #main-svg {
    margin-right: 0em;
  }
}

@media screen and (max-width: 660px) {
  #content #intro-text {
    width: inherit;
  }

  #intro-text {
    padding: 1em;
  }

  #popup {
    width: 80%;
  }
}