#options {
  position: absolute;
  width: var(--options-width);
  display: flex;
  justify-content: center;
  padding: 1rem;
  color: #FFF;
}


#options h2 {
  font-size: 2em;
  text-transform: uppercase;
  font-weight: bold;
}

#options__button {
  position: absolute;
  transition-property: filter, transform;
  transition-duration: 0.5s;
  transition-timing-function: ease-in-out;
  left: 1em;
  width: 2.5rem;
  margin: 0.7em;
  cursor: pointer;
  z-index: 2;
}

#options__button:hover {
  transform: scale(1.1);
}

#options__button.options__button--activated {
  filter: invert(100%);
  transform: rotate(180deg);
}

#options-panel {
  z-index: 1;
  position: relative;
  width: 100%;
  box-sizing: border-box;
  height: fit-content;
  background-color: var(--player-color-semi-transparent);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  padding: 1.5em;
  border-radius: 1em;
  box-shadow: 5px 5px 10px #555;
  /* Hiding it beyond screen border */
  transition-property: transform, opacity;
  transition-duration: 0.5s;
  transition-timing-function: ease-in-out;
}

#options-panel.options-panel--hidden {
  opacity: 0%;
  transform: translate(0, -110%);
}

.options-item {
  width: 100%;
  text-align: center;
  border-top: 1px solid #fff;
}

.options-item__title {
  font-weight: bold;
  font-size: 1.5em;
  margin: 1em;
}

/* From https://cssanimation.dev/radio-switch/ */

.radio-switch {
  display: flex;
  justify-content: space-evenly;
  background: #555;
  border-radius: 100vmax;
  position: relative;
  width: 100%;
  --switch-positions: 2; /* To init by script */
  --current-index: 0; /* To init by script */
}

.radio-switch__label {
  cursor: pointer;
  padding: 0.75em 0.25em;
  flex-basis: calc(100% / var(--switch-positions));
  z-index: 10;
  user-select: none;
  text-shadow: 0 0 2px #000;
}

.radio-switch__selection {
  position: absolute;
  width: calc(100% / var(--switch-positions));
  border-radius: 100vmax;
  left: calc(100% / var(--switch-positions) * var(--current-index));
  height: 100%;
  pointer-events: none;
  background-color: var(--player-color);
  transition: left 0.3s;
}

.radio-switch__input {
  display: none;
}

.radio-switch__input:checked+.radio-switch__selection {
  opacity: 0.5;
}

@media (min-width : 600px) {
  #options {
    left: 0;
  }

  #options-panel.options-panel--hidden {
    opacity: 0%;
    transform: translate(-110%, 0);
  }
}