Basic Slider

<div class="fx-0161-root">
  <div class="bsld-carousel" role="region" aria-roledescription="carrousel" aria-label="Diaporama" data-slide="diapositive" data-of="sur">
    <div class="bsld-track">
      <div class="bsld-slide"><span class="bsld-caption">Slide 1</span></div>
      <div class="bsld-slide"><span class="bsld-caption">Slide 2</span></div>
      <div class="bsld-slide"><span class="bsld-caption">Slide 3</span></div>
      <div class="bsld-slide"><span class="bsld-caption">Slide 4</span></div>
      <div class="bsld-slide"><span class="bsld-caption">Slide 5</span></div>
    </div>
    <button type="button" class="bsld-arrow bsld-prev" aria-label="Diapositive précédente">
      <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M15 18l-6-6 6-6"/></svg>
    </button>
    <button type="button" class="bsld-arrow bsld-next" aria-label="Diapositive suivante">
      <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M9 18l6-6-6-6"/></svg>
    </button>
  </div>
</div>

.fx-0161-root,
.fx-0161-root *,
.fx-0161-root *::before,
.fx-0161-root *::after {
  box-sizing: border-box;
}

/* Cadre de démonstration : fond, marge intérieure et hauteur minimale réglables */
.fx-0161-root {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--bsld-stage-min-height, 250px);
  padding: var(--bsld-stage-padding, 25px 16px);
  background: var(--bsld-stage-bg, #1a1a24);
  color: #fff;
  font-family: sans-serif;
}

/* Le carrousel prend la largeur de son conteneur, jusqu'à --bsld-width ; hauteur = largeur × ratio */
.bsld-carousel {
  position: relative;
  width: 100%;
  max-width: var(--bsld-width, 640px);
  height: var(--bsld-height, auto);
  aspect-ratio: var(--bsld-ratio, 16 / 10);
  overflow: hidden;
  overflow: clip; /* le cadre ne peut pas défiler tout seul (focus, scrollIntoView) */
  border-radius: var(--bsld-radius, 1rem);
  background: #12121a;
}

.bsld-track {
  display: flex;
  height: 100%;
  transition: transform var(--bsld-duration, 0.5s) ease-out;
  touch-action: pan-y; /* le doigt fait défiler la page à la verticale, le carrousel à l'horizontale */
  user-select: none;
  -webkit-user-select: none;
}

.bsld-slide {
  position: relative;
  flex: 0 0 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Vos photos : <img> dans la diapositive, recadrée pour la remplir */
.bsld-slide > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-user-drag: none;
}

.bsld-caption {
  position: relative;
  font-weight: 600;
  font-size: 1.2rem;
  color: #fff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

/* Fonds de démonstration (remplacés par vos images) */
.bsld-slide:nth-child(1) { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.bsld-slide:nth-child(2) { background: linear-gradient(135deg, #8b5cf6, #d946ef); }
.bsld-slide:nth-child(3) { background: linear-gradient(135deg, #d946ef, #f43f5e); }
.bsld-slide:nth-child(4) { background: linear-gradient(135deg, #f43f5e, #f97316); }
.bsld-slide:nth-child(5) { background: linear-gradient(135deg, #f97316, #eab308); }

.bsld-arrow {
  position: absolute;
  top: 50%;
  z-index: 10;
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-50%);
  background: var(--bsld-arrow-bg, rgba(255, 255, 255, 0.2));
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.bsld-arrow:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: translateY(-50%) scale(1.1);
}

.bsld-arrow:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.bsld-arrow svg {
  width: 18px;
  height: 18px;
  stroke: #fff;
  stroke-width: 2;
  fill: none;
}

.bsld-prev { left: 10px; }
.bsld-next { right: 10px; }

/* Texte lu par les lecteurs d'écran seulement */
.bsld-status {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Mouvement réduit : le changement de diapositive reste, mais sans glissement */
@media (prefers-reduced-motion: reduce) {
  .bsld-track,
  .bsld-arrow {
    transition: none;
  }
}

(function () {
  // Basic Slider : la piste glisse d'une diapositive à l'autre (flèches, touches ← →, glisser au doigt ou à la souris).
  // Chaque .bsld-carousel de la page a sa propre instance ; rien n'est déclaré sur window.
  function init(car) {
    if (car.hasAttribute('data-bsld-ready')) return; // script collé deux fois : rien n'est branché deux fois
    var track = car.querySelector('.bsld-track');
    var slides = track ? track.querySelectorAll('.bsld-slide') : [];
    if (!slides.length) return;
    car.setAttribute('data-bsld-ready', '');
    var prev = car.querySelector('.bsld-prev');
    var next = car.querySelector('.bsld-next');
    var word = car.getAttribute('data-slide') || 'slide';
    var of = car.getAttribute('data-of') || 'of';
    var n = slides.length;
    var index = 0;

    // annonce « diapositive 2 sur 5 » aux lecteurs d'écran après chaque changement
    var status = document.createElement('p');
    status.className = 'bsld-status';
    status.setAttribute('aria-live', 'polite');
    car.appendChild(status);

    for (var i = 0; i < n; i++) {
      slides[i].setAttribute('role', 'group');
      slides[i].setAttribute('aria-roledescription', word);
      slides[i].setAttribute('aria-label', (i + 1) + ' ' + of + ' ' + n);
    }

    function go(k, announce) {
      index = ((k % n) + n) % n; // en boucle : après la dernière, la première
      track.style.transform = 'translateX(' + (-100 * index) + '%)';
      for (var i = 0; i < n; i++) {
        // diapositives cachées : hors du Tab et des lecteurs d'écran
        if (i === index) {
          slides[i].removeAttribute('inert');
          slides[i].removeAttribute('aria-hidden');
        } else {
          slides[i].setAttribute('inert', '');
          slides[i].setAttribute('aria-hidden', 'true');
        }
      }
      if (announce) status.textContent = (car.getAttribute('data-slide') || word) + ' ' + (index + 1) + ' ' + (car.getAttribute('data-of') || of) + ' ' + n;
    }

    if (prev) prev.addEventListener('click', function () { go(index - 1, true); });
    if (next) next.addEventListener('click', function () { go(index + 1, true); });

    car.addEventListener('keydown', function (e) {
      if (/^(INPUT|TEXTAREA|SELECT)$/.test(e.target.tagName) || e.target.isContentEditable) return;
      if (e.key === 'ArrowLeft') { e.preventDefault(); go(index - 1, true); }
      if (e.key === 'ArrowRight') { e.preventDefault(); go(index + 1, true); }
    });

    // Glisser (Pointer Events : doigt, souris, stylet) : plus de 50 px à l'horizontale change de diapositive
    var x0 = null, y0 = 0, dragged = false;
    track.addEventListener('pointerdown', function (e) {
      if (e.pointerType === 'mouse' && e.button !== 0) return;
      x0 = e.clientX; y0 = e.clientY; dragged = false;
    });
    track.addEventListener('pointerup', function (e) {
      if (x0 === null) return;
      var dx = e.clientX - x0, dy = e.clientY - y0;
      x0 = null;
      if (Math.abs(dx) > 50 && Math.abs(dx) > Math.abs(dy)) {
        dragged = true;
        go(index + (dx < 0 ? 1 : -1), true);
      }
    });
    track.addEventListener('pointercancel', function () { x0 = null; });
    // un glisser à la souris ne doit pas ouvrir le lien posé sur la diapositive
    track.addEventListener('click', function (e) {
      if (dragged) { e.preventDefault(); e.stopPropagation(); dragged = false; }
    }, true);
    track.addEventListener('dragstart', function (e) { e.preventDefault(); });

    go(0, false);
  }
  Array.prototype.forEach.call(document.querySelectorAll('.bsld-carousel'), init);
})();