.easycarousel {
  position: relative;
  margin: 1rem 0;
}

.easycarousel *,
.easycarousel *::before,
.easycarousel *::after,
.easycarousel-compare * {
  box-sizing: border-box;
}

.easycarousel__viewport {
  overflow: hidden;
}

.easycarousel__container {
  display: flex;
  touch-action: pan-y pinch-zoom;
  margin-left: calc(var(--ec-gap, 1rem) / -2);
  margin-right: calc(var(--ec-gap, 1rem) / -2);
}

.easycarousel__slide {
  position: relative;
  flex: 0 0 calc(100% / var(--ec-slides, 1));
  min-width: 0;
  padding-left: calc(var(--ec-gap, 1rem) / 2);
  padding-right: calc(var(--ec-gap, 1rem) / 2);
}

.easycarousel__slide img {
  display: block;
  width: 100%;
  margin: 0 auto;
  object-fit: contain;
  max-height: var(--ec-img-max-height, none);
}

.easycarousel__slide p {
  margin: 0;
}

.easycarousel__slide--content {
  align-self: stretch;
}

.easycarousel__slide--content > * {
  height: 100%;
  margin: 0;
}

.easycarousel__viewport:focus-visible {
  outline: 2px solid rgba(128, 128, 128, 0.8);
  outline-offset: 2px;
}

/* vertical variant */
.easycarousel--vertical .easycarousel__container {
  flex-direction: column;
  height: var(--ec-height, 20rem);
  margin-left: 0;
  margin-right: 0;
  margin-top: calc(var(--ec-gap, 1rem) / -2);
  margin-bottom: calc(var(--ec-gap, 1rem) / -2);
}

.easycarousel--vertical .easycarousel__slide {
  flex: 0 0 calc(100% / var(--ec-slides, 1));
  min-height: 0;
  padding-left: 0;
  padding-right: 0;
  padding-top: calc(var(--ec-gap, 1rem) / 2);
  padding-bottom: calc(var(--ec-gap, 1rem) / 2);
}

.easycarousel--vertical .easycarousel__slide img {
  height: 100%;
}

/* captions */
.easycarousel__caption {
  position: absolute;
  left: 15%;
  right: 15%;
  bottom: 1rem;
  padding: 0.25rem 1rem;
  border-radius: 0.375rem;
  background-color: rgba(0, 0, 0, 0.45);
  color: #fff;
  text-align: center;
}

/* arrows */
.easycarousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.4rem;
  border: 0;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.35);
  color: #fff;
  cursor: pointer;
}

.easycarousel__arrow:disabled {
  opacity: 0.3;
  cursor: default;
}

.easycarousel__arrow svg {
  display: block;
  width: 100%;
  height: 100%;
}

.easycarousel__arrow--prev {
  left: 0.75rem;
}

.easycarousel__arrow--next {
  right: 0.75rem;
}

.easycarousel--vertical .easycarousel__arrow {
  left: 50%;
  right: auto;
  transform: translateX(-50%);
}

.easycarousel--vertical .easycarousel__arrow--prev {
  top: 0.75rem;
}

.easycarousel--vertical .easycarousel__arrow--next {
  top: auto;
  bottom: 0.75rem;
}

/* dots */
.easycarousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.easycarousel__dot {
  width: 0.65rem;
  height: 0.65rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background-color: rgba(128, 128, 128, 0.45);
  cursor: pointer;
}

.easycarousel__dot--selected {
  background-color: rgba(128, 128, 128, 0.95);
}

/* thumbnails */
.easycarousel__thumbs {
  overflow: hidden;
  margin-top: 0.5rem;
}

.easycarousel__thumbs-container {
  display: flex;
  gap: 0.5rem;
}

.easycarousel__thumb {
  flex: 0 0 6rem;
  min-width: 0;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 0.25rem;
  background: none;
  cursor: pointer;
  opacity: 0.6;
  overflow: hidden;
}

.easycarousel__thumb--selected {
  opacity: 1;
  border-color: rgba(128, 128, 128, 0.9);
}

.easycarousel__thumb img {
  display: block;
  width: 100%;
  margin: 0;
}

/* parallax needs the image cropped inside the slide */
.easycarousel__slide img[style*="translateX"] {
  will-change: transform;
}

.easycarousel__slide {
  overflow: hidden;
}

/* 3D coverflow: the active card sits in front, neighbours recede into a
   stack. The viewport is inset so those neighbours stay in view, and the
   per-slide transforms are set from JS. */
.easycarousel--coverflow {
  overflow: hidden;
  padding: 1rem 0;
}

.easycarousel--coverflow .easycarousel__viewport {
  overflow: visible;
  margin: 0 var(--ec-coverflow-inset, 20%);
  /* JS overrides this with a value proportional to the slide width */
  perspective: 500px;
}

.easycarousel--coverflow .easycarousel__container {
  transform-style: preserve-3d;
  margin-left: 0;
  margin-right: 0;
}

.easycarousel--coverflow .easycarousel__slide {
  padding-left: 0;
  padding-right: 0;
  overflow: visible;
  backface-visibility: hidden;
  will-change: transform, filter;
}

/* content slides need a card surface, or there is nothing for the 3D stack to
   act on; images bring their own */
.easycarousel--coverflow .easycarousel__slide--content {
  padding: 1.5rem;
  border-radius: 0.75rem;
  background-color: var(--bs-body-bg, #fff);
  border: 1px solid rgba(128, 128, 128, 0.2);
}

/* text-heavy slides read better when only the active card shows its content */
.easycarousel--coverflow .easycarousel__slide--content > * {
  opacity: var(--ec-active, 1);
  transition: opacity 0.3s ease-out;
}

/* marquee: a strip that scrolls forever. The slides are in the document
   twice; translating the track by half its width lands copy two where copy
   one began, so the animation restarts invisibly. */
.easycarousel-marquee {
  position: relative;
  overflow: hidden;
  margin: 1rem 0;
  /* fade the edges with a mask rather than a gradient overlay, so it works on
     any page background, light or dark */
  -webkit-mask-image: linear-gradient(to right, transparent,
    #000 var(--ec-marquee-fade, 8%),
    #000 calc(100% - var(--ec-marquee-fade, 8%)), transparent);
  mask-image: linear-gradient(to right, transparent,
    #000 var(--ec-marquee-fade, 8%),
    #000 calc(100% - var(--ec-marquee-fade, 8%)), transparent);
}

.easycarousel-marquee--no-fade {
  -webkit-mask-image: none;
  mask-image: none;
}

.easycarousel-marquee *,
.easycarousel-marquee *::before,
.easycarousel-marquee *::after {
  box-sizing: border-box;
}

.easycarousel-marquee__track {
  display: flex;
  width: max-content;
  animation: ec-marquee var(--ec-marquee-speed, 40s) linear infinite;
}

.easycarousel-marquee--reverse .easycarousel-marquee__track {
  animation-direction: reverse;
}

/* let readers stop the strip to look at something, by hovering or by tabbing
   into a link inside it */
.easycarousel-marquee--pause:hover .easycarousel-marquee__track,
.easycarousel-marquee__track:focus-within {
  animation-play-state: paused;
}

.easycarousel-marquee__group {
  display: flex;
  flex: 0 0 auto;
}

.easycarousel-marquee__item {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  padding: 0 calc(var(--ec-gap, 1rem) / 2);
}

.easycarousel-marquee__item img {
  display: block;
  /* the height drives the size; width follows, so undo Quarto's .img-fluid */
  width: auto;
  max-width: none;
  height: var(--ec-marquee-height, 4rem);
  margin: 0;
  object-fit: contain;
}

.easycarousel-marquee__item p {
  margin: 0;
}

@keyframes ec-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* reveal.js PDF export: no animation to capture, so wrap the first copy into
   rows and drop the duplicate */
.easycarousel-marquee--print {
  -webkit-mask-image: none;
  mask-image: none;
}

.easycarousel-marquee--print .easycarousel-marquee__track {
  animation: none;
  width: auto;
}

.easycarousel-marquee--print .easycarousel-marquee__group {
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--ec-gap, 1rem);
}

.easycarousel-marquee--print .easycarousel-marquee__group[aria-hidden] {
  display: none;
}

.reveal .easycarousel-marquee__item img {
  max-width: none;
  margin: 0;
}

/* before/after comparison slider */
.easycarousel-compare {
  position: relative;
  margin: 1rem 0;
  overflow: hidden;
  touch-action: none;
  cursor: col-resize;
  --ec-pos: 50%;
}

.easycarousel-compare img {
  display: block;
  width: 100%;
  margin: 0;
}

.easycarousel-compare__before p,
.easycarousel-compare__after p {
  margin: 0;
}

.easycarousel-compare__after {
  position: absolute;
  inset: 0;
  clip-path: inset(0 0 0 var(--ec-pos));
}

.easycarousel-compare__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--ec-pos);
  width: 2px;
  margin-left: -1px;
  background-color: #fff;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
}

.easycarousel-compare__grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background-color: #fff;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.5);
  cursor: col-resize;
}

/* reveal.js PDF export (?print-pdf): static grid of all slides */
.easycarousel--print .easycarousel__viewport {
  overflow: visible;
}

.easycarousel--print .easycarousel__container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  height: auto;
  margin: 0;
}

.easycarousel--print .easycarousel__slide {
  padding: 0;
}

.easycarousel--print .easycarousel__container > .easycarousel__slide:only-child {
  grid-column: span 2;
}

.reveal .easycarousel--print .easycarousel__slide img {
  max-height: 28vh;
}

.easycarousel-compare--print {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  cursor: default;
}

.easycarousel-compare--print .easycarousel-compare__after {
  position: static;
  clip-path: none;
}

/* reveal.js */
.reveal .easycarousel {
  margin: 0.5em 0;
}

.reveal .easycarousel__step {
  display: none;
}

.reveal .easycarousel__slide img,
.reveal .easycarousel__thumb img {
  margin: 0 auto;
  max-width: 100%;
  max-height: var(--ec-img-max-height, 60vh);
  object-fit: contain;
}

@media (prefers-reduced-motion: reduce) {
  .easycarousel__container {
    scroll-behavior: auto;
  }

  /* an endlessly moving strip is exactly what this setting asks us to stop */
  .easycarousel-marquee__track {
    animation: none;
  }
}