:root {
  --accent-light: hsl(0, 100%, 91%);
  --accent-hover: hsl(0, 59%, 77%);
  --accent: hsl(0, 100%, 64%);
  --shadow: hsl(0, 13%, 18%);

  --primary-text: hsl(22, 100%, 89%);
  --primary-cream: hsl(22, 36%, 63%);
  --primary-custard: hsl(22, 25%, 54%);
  --primary: hsl(22, 31%, 38%);
  --primary-wallpaper: hsl(22, 100%, 17%);
  --primary-dark: hsl(22, 97%, 13%);

  --secondary-highlight: hsl(41, 100%, 95%);
  --secondary-text: hsl(41, 29%, 83%);
  --secondary: hsl(41, 64%, 58%);
  --secondary-dark: hsl(41, 51%, 25%);
}

iframe {
  display: block;
  margin: auto;
  margin-top: 2em;
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-hover);
}

body {
  display: flex;
  flex-direction: column;
  color: var(--primary-dark);
  font-family: Georgia, sans-serif;
  margin: 0;
  background-blend-mode: multiply;
  /* background-color: */
  /* background-image: */
  /* source is 128px, we want to scale by 2x */
  background-size: 256px;
  image-rendering: pixelated;
}

nav {
  display: flex;
  justify-content: center;
  width: 100dvw;
  background: linear-gradient(0deg, var(--primary-cream) 50%, var(--primary-custard) 100%);
  font-size: 18px;
  letter-spacing: 4px;
  box-shadow: 0px 15px 50px black;
}

nav ul {
  display: flex;
  gap: 100px;
  list-style: none;
}

nav ul a {
  color: var(--primary-dark);
  text-decoration: none;
  transition-duration: 0.2s;
}

nav ul a:hover {
  color: var(--primary-text);
}

#introduction {
  background-color: hsl(from var(--secondary-dark) h s l / 0.8);
  color: var(--secondary-text);
  border-radius: 25px;
  padding: 0px 30px;
  margin: 20px 0px;
  font-size: 20px;
  /* text-align: start; */
  text-decoration: none;
}


#content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  /* Allows flexbox to shrink content vertically */
  min-height: 0;
  width: max(70rem, 50dvw);
  margin: auto;
}

#content-main {
  display: flex;
  flex-grow: 1;
  min-height: 60dvh;
  max-height: 100dvh;
}

#content-column-1 {
  display: flex;
  flex-direction: column;
}

#content-column-2 {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  overflow: auto;
  /* Opacity also affects children, so use color alpha channel instead */
  background-color: hsl(from var(--secondary-dark) h s l / 0.8);
  /* background-color: var(--secondary-dark); */
  /* opacity: 80%; */
  color: var(--secondary-text);
  border-radius: 0px 25px 25px 0px;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
}

.song-toggle {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--primary-custard);
  border-left: 1px solid var(--primary-dark);
  border-right: 1px solid var(--primary-dark);
  border-radius: 25px 0px 0px 0px;
  font-size: 20px;
  gap: 10px;
}

.song-toggle .switch {
  margin: 5px 5px 5px 5px;
  height: 30px;
  width: 56px;
}

.song-toggle .slider {
  background-color: var(--accent-light);
}

.song-toggle .slider:before {
  height: 22px;
  width: 22px;
}

.song-toggle .slider.round {
  border-radius: 30;
}

.song-toggle input:checked+.slider {
  background-color: var(--accent);
}

#song-list {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  flex-wrap: nowrap;
  width: 25rem;
  background-color: var(--primary);
  border: 1px solid var(--primary-dark);
  border-radius: 0px 0px 0px 25px;
  color: var(--primary-text);
  margin: 0;
  padding: 10px;
  gap: 8px;
  overflow: auto;
  counter-reset: song-number;
}

#song-list li {
  display: flex;
  align-items: stretch;
  border-radius: 10px;
  transition-duration: 0.3s;
}

#song-list li:hover {
  background-color: var(--primary-cream);
}

#song-list li.selected {
  background-color: var(--primary-dark);
}

#song-list.numbered .song::before {
  counter-increment: song-number;
  content: counter(song-number) ". ";
  display: inline-block;
  min-width: 1em;
  margin-right: 0.5em;
  font-weight: bold;
}

.play-icon {
  display: flex;
  flex-shrink: 0;
  margin: auto;
  align-items: center;
  justify-content: center;
  height: 40px;
  width: 40px;
  background-color: var(--secondary-highlight);
  border-radius: 20%;
  cursor: pointer;
}

.play-icon.selected {
  background-color: var(--accent-light);
}

.play-icon:hover {
  background-color: var(--accent-hover);
  transition-duration: 0.3s;
}

.play-icon:active {
  background-color: var(--accent);
}

.play-icon img {
  width: 12px;
}

.song {
  background: none;
  border: none;
  color: var(--primary-text);
  font-family: Georgia, sans-serif;
  font-size: 20px;
  text-align: left;
  cursor: pointer;
  flex-grow: 1;
  margin: 0px 20px;
  transition-duration: 0.2s;
}

.song:active {
  color: black;
}

.duration {
  margin: auto;
  margin-right: 1rem;
}

#song-title {
  font-size: 24px;
  font-weight: bold;
}

#song-description {
  text-align: start;
  overflow: auto;
  font-size: 20px;
}

#audiobar {
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  background-color: var(--primary-cream);
  border: 3px solid var(--primary);
  border-radius: 25px;
  box-shadow: 0px 15px 50px var(--shadow);
  margin-bottom: 20px;
  color: var(--primary-dark);
}

#now-playing {
  margin-top: 15px;
  font-size: 24px;
  font-weight: bold;
}

hr {
  border: 0;
  border-top: 1px solid var(--secondary);
}

/*
  When <hr> is inside a flexbox with vertical items, it will only stretch vertically.
  This results in a 1x1 px divider.
  We need to force it to stretch horizontally.
*/
hr.flexbox-column {
  width: 100%;
}