:root {
  --main-font: 1rem/1.5rem "Chivo", sans-serif;
}

body {
  width: 100vw;
  height: 100vh;
  margin: 0;
  background: #111;
  overflow: hidden;
}

input {
  position: fixed;
  bottom: 0;
}

input[type="radio"] {
  border-radius: 0;
}

audio {
  position: relative;
  z-index: 100;
}

.settings-overlay {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  padding: 4rem;
  color: #fff;
  font: var(--main-font);
  background: rgba(0,0,0,0.8);
  border-right: 1px solid #fff;
}

.settings-overlay label {
  display: block;
  position: relative;
  margin-top: 2rem;
  color: #fff;
  font: var(--main-font);
}

.settings-overlay input {
  display: block;
  position: relative;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  font: var(--main-font);
  border: none;
  outline: none;
}

.settings-overlay input[type="radio"] {
  display: inline-block;
}

.settings-overlay #audiofile {
  position: absolute;
  width: 0.1px;
  height: 0.1px;
  overflow: hidden;
  z-index: -1;
  opacity: 0;
}

.settings-overlay label[for="audiofile"] {
  display: inline-block;
  white-space: nowrap;
  padding: 1rem;
  color: #111;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}

.settings-overlay label[for="audiofile"]:hover {
  opacity: 0.8;
}

.settings-footnote {
  position: relative;
  margin-top: 2rem;
  color: rgba(255,255,255,0.5);
  font: var(--main-font);
  font-size: 0.75rem;
  line-height: 1.25rem;
}