/* https://fonts.google.com/?selection.family=PT+Serif:ital,wght@0,400;0,700;1,400|Raleway:ital,wght@0,300;1,300|Roboto+Slab:wght@400;700&sidebar.open */
@import url('https://fonts.googleapis.com/css2?family=PT+Serif:ital,wght@0,400;0,700;1,400&family=Raleway:ital,wght@0,300;1,300&family=Roboto+Slab:wght@400;700&display=swap');

html,
body {
  height: 100%;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;

  display: flex;
  flex-direction: column;
  font-family: cursive; /* Catch missing font-family declarations lol */
  color: red;
}

button,
input,
select,
textarea {
  -webkit-appearance: none;
  border: none;
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
}
button:not(:disabled):hover {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}
.link:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  font-family: 'Roboto Slab', serif;
  margin: 0;
}
h3 {
  font-weight: normal;
}

::selection {
  background-color: rgba(255, 255, 0, 0.5);
}

.centre-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.pixelated {
  image-rendering: crisp-edges;
  image-rendering: pixelated;
}

.cover {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-image: linear-gradient(rgba(255, 255, 255, 0.5), transparent), url('./cover.png');
  background-size: cover;
  background-position: center;
  flex-direction: column;
  z-index: 1;
  color: white;
  font-family: 'Raleway', sans-serif;
  font-weight: 300;
}
.title-wrapper {
  display: flex;
  align-items: center;
  flex-direction: column;
  --black: black;
}
.title,
.author {
  margin: 0;
  background-color: var(--black);
  color: white;
  font-weight: 300;
  font-family: 'Raleway', sans-serif;
}
.title {
  font-size: 60px;
}
.author {
  margin-top: 20px;
  text-transform: uppercase;
  font-size: 24px;
  padding: 0 30px;
}
.scroll-down {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0;
  display: block;
  width: 50px;
  height: 50px;
  margin: 20px auto;
  background-image: url('./down.svg');
  background-position: 50%;
  background-size: contain;
  animation: scroll-down-please 1.5s cubic-bezier(0.7, 0, 0.3, 1) infinite;
}
@keyframes scroll-down-please {
  0% {
    background-position-y: 0;
  }
  80% {
    background-position-y: 50px;
  }
  100% {
    background-position-y: 50px;
  }
}

.shadow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 3;
  pointer-events: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

/* Colours from https://dribbble.com/shots/3666980-Sepia-theme */
.content-wrapper {
  display: flex;
  position: relative;
  z-index: 2;
  margin-top: 100vh;
  background-color: #E6DDCE;
  color: #59564E;
  align-items: flex-start;
}

.table-of-contents {
  position: sticky;
  top: 0;
  color: rgba(0, 0, 0, 0.8);
  z-index: 1;
  max-width: 300px;
  padding: 20px 0;
}
.contents-heading {
  font-size: 24px;
  margin: 0 20px;
  margin-bottom: 5px;
}
.contents-main {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}
.piece-link {
  height: 100%;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  flex-direction: column;
  padding: 10px 20px;
  transition: background-color .2s;
}
.piece-link:not(.selected):hover {
  background-color: rgba(0, 0, 0, 0.05);
}
.piece-link.selected {
  background-image: linear-gradient(90deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.05));
  cursor: default;
}
.link-title {
  font-family: 'Roboto Slab', serif;
}
.link-type {
  font-family: 'Raleway', sans-serif;
  font-weight: 300;
  font-style: italic;
  color: rgba(0, 0, 0, 0.6);
  margin-top: 5px;
}

.content {
  flex: auto;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.8);
  color: rgba(0, 0, 0, 0.8);
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
  font-family: 'PT Serif', serif;
}
.piece {
  margin: 0 auto;
  max-width: 800px;
  padding: 20px 0;
}
.piece hgroup {
  margin-bottom: 20px;
}
.piece-title {
  font-size: 48px;
}
.piece-type {
  font-size: 24px;
}
.separator {
  height: 100vh;
  background-image: url('./sheep.png');
  background-size: 150px;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.1;
}
.return-to-toc:not(:focus) {
  color: transparent;
  font-size: 0;
  position: absolute;
  z-index: -1;
}

@media (max-width: 600px) {
  html {
    scroll-padding-top: 120px;
  }
  .content-wrapper {
    flex-direction: column;
    align-items: stretch;
  }
  .table-of-contents {
    background-color: #E6DDCE;
    white-space: nowrap;
    max-width: none;
    padding-bottom: 0;
    padding-top: 15px;
  }
  .table-of-contents::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 100vh;
    box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.5);
    pointer-events: none;
  }
  .contents-main {
    flex-direction: row;
    overflow-x: auto;
    padding: 0 10px;
  }
  .contents-main li {
    flex: 1 0 0;
  }
  .piece-link {
    padding: 5px 10px;
  }
  .piece-link.selected {
    background-image: linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.05));
  }
  .link-title {
    max-width: 50vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .content {
    box-shadow: none;
  }
}

.piece p {
  margin: 0;
  text-indent: 0.5in;
  line-height: 1.8;
}
.piece .no-indent {
  text-indent: 0;
}
.piece .space-before {
  margin-top: 20px;
}
.piece .space-after {
  margin-bottom: 20px;
}
.piece .space-around {
  margin: 20px 0;
}
.piece .letter-date {
  text-align: right;
}
.piece .small-caps {
  font-weight: normal;
  font-size: 0.8em;
  text-transform: uppercase;
}
.piece h3 {
  margin: 15px 0;
}
.piece .independent-times-subtitle {
  font-weight: normal;
  font-size: 0.8em;
}
.piece .snippet-divider {
  border: none;
  margin-top: 40px;
}
.piece li {
  margin: 15px 0;
}
.piece .emoji-title {
  font-size: 2em;
  color: black;
}

.expert-link {
  position: relative;
  z-index: 1;
  flex: none;
  height: 100vh;
  background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('./thirty-eight.png');
  background-size: cover;
  background-position: center;
  font-family: 'Roboto Slab', serif;
  flex-direction: column;
  color: white;
}
.expert-desc {
  max-width: 500px;
  padding: 10px 20px;
  font-size: 24px;
}
.expert-play-btn {
  border: 1px solid white;
  background-color: rgba(0, 0, 0, 0.2);
  font-size: 20px;
  padding: 10px 20px;
  background-image: url('./go.svg');
  background-position: 150% 50%;
  background-size: 20px;
  background-repeat: no-repeat;
  transition: all .2s;
}
.expert-play-btn:hover {
  background-position-x: calc(100% - 15px);
  padding-right: 50px;
  background-color: black;
}
.expert-play-btn:active {
  border-color: rgba(255, 255, 255, 0.7);
}

:disabled {
  opacity: 0.5;
}