/* ═══════════════════════════════════════════════════════════════════════════
  slideshow-panel.css
  Horizontal auto-scrolling slideshow used to cycle the Gītā / iChing intro
  cards. Two transition styles are available — pick one by adding the
  matching class to the .wo-slideshow root:

   .wo-anim-slide  → filmstrip: all slides shift sideways together
   .wo-anim-push   → incoming slide slides in and pushes the outgoing one out

  Both directions (left↔right) are supported by the JS depending on which
  dot/slide is targeted; default autoplay direction is right-to-left.


  How to tune Ken Burns effect, per image:

  --kb-duration — how long one zoom cycle takes (default 16s)
  --kb-scale    — how far it zooms in (default 1.15 = 15%)
  --kb-origin   — pan anchor/direction, any transform-origin value: center, top left, bottom right, 20% 80%, etc.
  Modifier classes, add alongside ken-burns:

  (none) → default: breathes in and out forever, no jump-cut
  ken-burns-loop → continuous one-way zoom that snaps back each cycle
  ken-burns-once → zooms in once and holds
  ken-burns-fade → adds a soft opacity fade-in on first paint

  <div class="intro-thumb ken-burns-frame">
    <img src="assets/images/iching.png" alt=""
         class="ken-burns"
         style="--kb-duration:20s; --kb-scale:1.2; --kb-pan-x:-5%;">
  </div>

   ═══════════════════════════════════════════════════════════════════════════ */

.wo-slideshow {
  position: relative;
  width:    100%;
}

.wo-slideshow-viewport {
  position:      relative;
  overflow:      hidden;        /* ← critical: clips the drag */
  border-radius: var(--radius);
  transition:    height .4s ease;
}

/* ── Track (shared wrapper for both modes) ── */
/* Prevent text selection during drag */
.wo-slideshow-track {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  display: flex;
  gap: 0;
  height: 100%;
  position: relative;
  touch-action: pan-y;  /* Allow vertical scrolling but take control of horizontal */
  user-select: none;
  will-change: transform;  /* Optimization for smoother movement */
}

/* Disable tap highlight on mobile */
.wo-slideshow-item,
.wo-dot {
  -webkit-tap-highlight-color: transparent;
}

/* ═══ SLIDE mode — items sit side by side, track translates ═══ */
.wo-anim-slide .wo-slideshow-track {
  transition: transform 0.6s cubic-bezier(0.65, 0, 0.35, 1);
}

.wo-anim-slide .wo-slideshow-item {
  flex-shrink: 0;
  width:       100%;
}

/* ═══ PUSH mode — items stacked absolutely, track is a static frame ═══ */
.wo-anim-push .wo-slideshow-track {
  display: block;
  height: 100%;
  /* Add these for consistency */
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.wo-anim-push .wo-slideshow-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  visibility: hidden;
  transform: translateX(100%);
  transition: transform 0.55s cubic-bezier(0.65, 0, 0.35, 1);
  /* Add this */
  -webkit-tap-highlight-color: transparent;
}

.wo-anim-push .wo-slideshow-item.wo-active {
  visibility: visible;
  transform:  translateX(0);
  z-index:    2;
}

.wo-anim-push .wo-slideshow-item.wo-exit-left {
  visibility: visible;
  transform:  translateX(-100%);
  z-index:    1;
}

.wo-anim-push .wo-slideshow-item.wo-exit-right {
  visibility: visible;
  transform:  translateX(100%);
  z-index:    1;
}

.wo-anim-push .wo-slideshow-item.wo-enter-from-right {
  visibility: visible;
  transform:  translateX(100%);
  transition: none;  /* placed instantly before the animated class kicks in */
}

.wo-anim-push .wo-slideshow-item.wo-enter-from-left {
  visibility: visible;
  transform:  translateX(-100%);
  transition: none;
}

/* Slides keep their card’s own spacing/border intact; the slideshow just
   frames and animates them. */
.wo-slideshow-item .intro {
  height: 100%;
}

/* Ensure the card has a smooth transition */
.wo-slideshow-item {
  transition: filter 0.3s ease, transform 0.3s ease;
  cursor:     default;  /* Makes it clear the item is interactive */
}

/* Brighten the card on hover */
.wo-slideshow-item:hover {
  filter:    brightness(1.10);    /* Increases brightness by 10% */
  transform: translateY(-1.2px);  /* Optional: slight lift effect */
}

/* ── Dot navigation ── */
.wo-slideshow-dotnav {
  display:         flex;
  justify-content: center;
  gap:             8px;
  margin-top:      14px;
}

.wo-dot {
  width:         8px;
  height:        8px;
  border-radius: 50%;
  border:        none;
  padding:       0;
  background:    var(--text-secondary);
  cursor:        pointer;
  transition:    background var(--transition), transform var(--transition);
}

.wo-dot:hover { background: var(--text-muted); }

.wo-dot-active {
  background: var(--text-primary);
  transform:  scale(1.25);
}

/* Respect users who’ve asked the OS to reduce motion */
@media (prefers-reduced-motion: reduce) {
  .wo-slideshow-track,
  .wo-anim-push .wo-slideshow-item {
    transition: none !important;
  }
}

/* ── Stacked (vertical) mode — toggled via Settings ── */
.wo-slideshow.wo-stacked .wo-slideshow-viewport {
  height: auto !important;
  overflow: visible;
}

.wo-slideshow.wo-stacked .wo-slideshow-track {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100% !important;
  transform: none !important;
  transition: none !important;
}

.wo-slideshow.wo-stacked .wo-slideshow-item {
  width: 100% !important;
  flex: none;
}

/* Push-mode transition classes must not fight the stacked layout */
.wo-slideshow.wo-stacked .wo-slideshow-item.wo-enter-from-left,
.wo-slideshow.wo-stacked .wo-slideshow-item.wo-enter-from-right,
.wo-slideshow.wo-stacked .wo-slideshow-item.wo-exit-left,
.wo-slideshow.wo-stacked .wo-slideshow-item.wo-exit-right {
  transform: none !important;
  position: static !important;
}

.wo-slideshow.wo-stacked .wo-slideshow-dotnav {
  display: none;
}

/* Separator — only visible in stacked mode */
.separator {
  display: none;
}

.wo-slideshow.wo-stacked .separator {
  display: block;
  height: 1px;
  margin: 4px 0;
  background: var(--border-color, rgba(0, 0, 0, 0.1));
}

/* ═══ KEN BURNS — zoom/pan confined inside a fixed-size frame ═══
   .intro-thumb (or any fixed-size box) becomes the frame: it keeps its own
   width/height/border-radius and clips whatever moves inside it.
   The .ken-burns class goes on the <img> itself, which fills the frame at
   100% and is the element that actually scales/pans.
*/
.ken-burns-frame {
  position: relative;
  overflow: hidden; /* clips the zoom/pan so the outer box never changes size */
}

.ken-burns-frame .ken-burns {
  position:   absolute;
  top:        0;
  right:      0;
  bottom:     0;
  left:       0;
  width:      100%;
  height:     100%;
  object-fit: cover;

  /* the frame’s own border-radius + overflow:hidden do the rounding */
  border-radius: 0;
}

.ken-burns {
  --kb-duration: 16s;
  --kb-scale:    1.15;
  --kb-origin:   center;
  --kb-pan-x:    0%;
  --kb-pan-y:    0%;

  display:          block;
  transform-origin: var(--kb-origin);
  will-change:      transform;
  animation:        wo-ken-burns var(--kb-duration) ease-in-out infinite alternate;
}

.ken-burns.ken-burns-loop {
  animation-direction:       normal;
  animation-timing-function: linear;
}

.ken-burns.ken-burns-once {
  animation-iteration-count: 1;
  animation-fill-mode:       forwards;
}

.ken-burns.ken-burns-fade {
  animation-name:            wo-ken-burns, wo-ken-burns-fade-in;
  animation-duration:        var(--kb-duration), 1.2s;
  animation-iteration-count: infinite, 1;
  animation-fill-mode:       none, forwards;
}

@keyframes wo-ken-burns {
  from { transform: scale(1) translate(0, 0); }
  to   { transform: scale(var(--kb-scale)) translate(var(--kb-pan-x), 
                    var(--kb-pan-y));
  }
}

@keyframes wo-ken-burns-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .ken-burns { animation: none; }
}