.card-gallery {
  --card-size: 400px;
  --card-height: 560px;
  --card-aspect-ratio: 5 / 7;
  --card-active-size: min(1280px, 90vw);
  --card-media-width: var(--card-size);
  --gap: 24px;
  --radius: 60px;
  --safe-area: 40px;
  --bp-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --bp-dur-expand: 400ms; /* slightly slower for smoother expansion */
  --bp-dur-fade: 250ms;
  --bp-dur-plus: 200ms;
  --wrapper-width: calc((var(--card-size) * 2) + var(--gap));
  --shift-end: calc(var(--card-size) - var(--card-active-size));
  --center-idle: calc((var(--wrapper-width) - ((var(--card-size) * 2) + var(--gap))) / 2);
  --card-glow-shadow: 0 4px 30px 20px var(--color-focus-shadow-blue);

  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px var(--viewport-gap);
}

.card-gallery__heading-wrap {
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 48px 0 60px;
  box-sizing: border-box;
}

/* ── Mobile-first ────────────────────────────────────── */

.card-gallery--2-cards {
  --card-aspect-ratio: 650 / 560;
}

.card-gallery--3-cards {
  --card-aspect-ratio: 650 / 560;
}

.card-gallery__stage {
  width: 100%;
}

.card-gallery__wrapper {
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
  contain: layout;
}

.card-gallery__cards {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  width: 100%;
}

.card-gallery__card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 0fr;
  flex-shrink: 0;
  width: 100%;
  aspect-ratio: var(--card-aspect-ratio);
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-base-bg);
  box-sizing: border-box;
  transition:
    grid-template-rows var(--bp-dur-expand) var(--bp-ease),
    box-shadow var(--bp-dur-expand) var(--bp-ease);
  contain: layout;
}

/* Shared active state: one expanded card at a time for both mobile and desktop. */
.card-gallery__card--active {
  z-index: 10;
  aspect-ratio: auto;
  grid-template-rows: auto auto;
  border: 4px solid transparent;
  background:
    linear-gradient(var(--color-base-bg), var(--color-base-bg)) padding-box,
    var(--gradient-brand) border-box;
  box-shadow: var(--card-glow-shadow);
}

.card-gallery__card:hover {
  box-shadow: var(--card-glow-shadow);
}

.card-gallery__card::before {
  content: "";
  pointer-events: none;
  grid-column: 1;
  grid-row: 1;
  z-index: 2;
  transition: opacity var(--bp-dur-fade) var(--bp-ease);
  opacity: 1;
}

/* 2-card variant keeps title focus near top edge in compact state. */
.card-gallery--2-cards .card-gallery__card::before {
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7) 0%, transparent 60%);
}

/* 3-card variant starts with lower text anchoring for denser card stacks. */
.card-gallery--3-cards .card-gallery__card::before {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 60%);
}

.card-gallery__card--active::before {
  opacity: 0;
}

.card-gallery__card--active .card-gallery__media {
  box-shadow: var(--card-glow-shadow);
  aspect-ratio: 65 / 56;
  height: 100%; /* Default to full height */
}

/* On mobile, we need height: auto for aspect-ratio to work with width: 100% */
@media (max-width: 1319px) {
  .card-gallery__card--active .card-gallery__media {
    height: auto;
  }
}

@media (min-width: 1320px) {
  .card-gallery__card--active {
    --card-media-width: 650px;
  }
}

.card-gallery__card--active:has([data-cg-video]) .card-gallery__media {
  box-shadow: none;
  aspect-ratio: auto;
  height: 100%;
}

.card-gallery__media {
  position: relative;
  grid-column: 1;
  grid-row: 1;
  z-index: 1;
  width: 100%;
  height: 100%;
  /* Match desktop card geometry so collapsed mobile cards keep one stable silhouette. */
  aspect-ratio: var(--card-aspect-ratio);
  overflow: hidden;
  border-radius: var(--radius);
  transition:
    transform var(--bp-dur-expand) var(--bp-ease),
    aspect-ratio var(--bp-dur-expand) var(--bp-ease),
    box-shadow var(--bp-dur-expand) var(--bp-ease);
}

.card-gallery__media img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  transition:
    transform var(--bp-dur-expand) var(--bp-ease),
    opacity var(--bp-dur-fade) var(--bp-ease);
}

.card-gallery__image--active {
  opacity: 0;
}

.card-gallery__card--active .card-gallery__image--normal {
  opacity: 0;
}

.card-gallery__card--active .card-gallery__image--active {
  opacity: 1;
}

.card-gallery__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--bp-dur-fade) var(--bp-ease);
  z-index: 5;
}

.card-gallery__card--active .card-gallery__video {
  opacity: 1;
}

/* Keep active video cards at true 16:9 playback with top/bottom breathing space. */
.card-gallery__card--active:has([data-cg-video]) .card-gallery__media {
  display: grid;
  place-items: center;
  background: var(--color-base-bg);
  box-shadow: none;
}

.card-gallery__card--active:has([data-cg-video]) .card-gallery__video {
  inset: auto;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.card-gallery__card--active:has([data-cg-video]) .card-gallery__media .card-gallery__image {
  opacity: 0;
}

.card-gallery__card--active:has([data-cg-video]) {
  box-shadow: none;
}

.card-gallery__content {
  grid-column: 1;
  grid-row: 1 / 3;
  z-index: 10;
  display: contents;
}

.card-gallery__overlay {
  grid-column: 1;
  grid-row: 1;
  z-index: 10;
  display: flex;
  flex-direction: column;
  padding: 20px 40px;
  box-sizing: border-box;
  pointer-events: none;
  height: 100%;
}

/* Mobile text anchors differ by variant to preserve contrast on each visual composition. */
.card-gallery--2-cards .card-gallery__overlay { justify-content: flex-start; padding: 32px 40px; }
.card-gallery--2-cards .card-gallery__card:not(.card-gallery__card--active) .card-gallery__overlay { width: 90%; }
.card-gallery--3-cards .card-gallery__overlay { justify-content: flex-end; }
.card-gallery--3-cards .card-gallery__card--active .card-gallery__overlay { justify-content: flex-start; }

.card-gallery__overlay > * { pointer-events: auto; }

.card-gallery__title {
  margin: 0 0 16px;
  color: var(--color-white);
  font-family: var(--type-h3-font-family);
  font-size: var(--type-h3-font-size);
  font-weight: 700;
  line-height: var(--type-h3-line-height);
  letter-spacing: var(--type-h3-letter-spacing);
  text-wrap: pretty;
  transition: color var(--bp-dur-fade) var(--bp-ease);
}

.card-gallery__card:not(.card-gallery__card--active) .card-gallery__title {
  font-family: var(--type-h4-font-family);
  font-size: var(--type-h4-font-size);
  font-weight: 700;
  line-height: var(--type-h4-line-height);
  letter-spacing: var(--type-h4-letter-spacing);
}

/* 3-card variant removes right padding for titles/predesc and aligns them */
.card-gallery--3-cards .card-gallery__title,
.card-gallery--3-cards .card-gallery__pre-desc {
  padding-right: 0;
}

.card-gallery--3-cards .card-gallery__pre-desc {
  height: 100px; /* Aligns titles by fixing pre-desc height */
  overflow: hidden;
}

/* Aktif olduğunda overlay içindeki başlığı gizle, expanded olanı göster */
.card-gallery__card--active .card-gallery__overlay .card-gallery__title {
  display: none !important;
}

/* Kart aktifken mobilde overlay'i tamamen gizle */
@media (max-width: 1319px) {
  .card-gallery__card--active .card-gallery__overlay {
    display: none;
  }
}

.card-gallery__card--active .card-gallery__title--expanded {
  display: inline-block !important;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
  -webkit-text-fill-color: transparent !important;
  max-width: 100%;
}

.card-gallery__pre-desc {
  margin: 0;
  color: var(--color-neutral-200);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  padding-right: 64px; /* RESERVES SPACE FOR PLUS BUTTON */
}

/* When expanded, pre-description yields to long-form description to avoid duplicated copy. */
.card-gallery__card--active .card-gallery__pre-desc { display: none; }

.card-gallery__expanded {
  grid-column: 1;
  grid-row: 2;
  padding: 0 40px;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(12px);
  transition:
    opacity var(--bp-dur-fade) var(--bp-ease) 120ms,
    transform var(--bp-dur-fade) var(--bp-ease) 120ms;
}

.card-gallery__card--active .card-gallery__expanded {
  max-height: none;
  opacity: 1;
  padding: 32px 40px 40px;
  transform: translateY(0);
}

.card-gallery__title--expanded {
  display: none; /* Hidden by default */
}

/* 3-card active title relocation applies only on mobile. Desktop keeps the overlay title visible. */
@media (max-width: 1319px) {
  .card-gallery--3-cards .card-gallery__card--active .card-gallery__overlay .card-gallery__title {
    display: none;
  }

  .card-gallery--3-cards .card-gallery__card--active .card-gallery__expanded .card-gallery__title--expanded {
    display: inline-block !important;
    padding-right: 0; /* No plus button protection needed here */
  }

  .card-gallery--3-cards .card-gallery__card--active .card-gallery__media {
    aspect-ratio: var(--card-aspect-ratio);
  }
}

.card-gallery__desc {
  margin: 0 0 24px;
  color: var(--color-neutral-200);
  font-size: var(--type-body-font-size);
}

.card-gallery__desc p { margin: 0 0 1em; }
.card-gallery__desc p:last-child { margin-bottom: 0; }

.card-gallery__cta-wrap { margin-top: 12px; }

.card-gallery__toggle {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 30; /* HIGHEST Z-INDEX TO STAY ABOVE REVEAL MEDIA */
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-white);
  cursor: pointer;
  transition: all var(--bp-dur-plus) var(--bp-ease);
}

.card-gallery__card--active .card-gallery__toggle { transform: rotate(45deg); color: var(--color-neon-pink); }

/* Keep the next video module off the card rail with the same section rhythm used elsewhere. */
.card-gallery {
  margin-bottom: 64px;
}

/* ── Desktop (≥ 1320px) ──────────────────────────────── */

@media (min-width: 1320px) {
  .card-gallery {
    margin-bottom: 100px;
  }

  .card-gallery__heading-wrap { padding-bottom: 100px; }

  /* Desktop variant sizing: map card count to rail geometry without JS branching. */
  .card-gallery:has(.card-gallery__card:last-child:nth-child(2)) {
    --card-size: 650px;
    --wrapper-width: calc((var(--card-size) * 2) + var(--gap));
  }

  .card-gallery:has(.card-gallery__card:last-child:nth-child(3)) {
    --card-size: 400px;
    --wrapper-width: calc((var(--card-size) * 3) + (var(--gap) * 2));
  }

  .card-gallery__stage { width: calc(var(--wrapper-width) + (var(--safe-area) * 2)); padding-inline: var(--safe-area); }
  .card-gallery__wrapper { width: var(--wrapper-width); max-width: none; height: var(--card-height); }

  .card-gallery__cards {
    flex-direction: row;
    width: max-content;
    transition: transform var(--bp-dur-expand) var(--bp-ease);
  }

  /* Desktop active-card tracking: rail translates to keep expanded card within stage viewport. */
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(2)) { transform: translateX(var(--center-idle)); }
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(2)):has(.card-gallery__card:nth-child(1).card-gallery__card--active) { transform: translateX(0); }
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(2)):has(.card-gallery__card:nth-child(2).card-gallery__card--active) { transform: translateX(var(--shift-end)); }
  
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(3)):has(.card-gallery__card:nth-child(1).card-gallery__card--active) { transform: translateX(0); }
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(3)):has(.card-gallery__card:nth-child(2).card-gallery__card--active) { transform: translateX(calc(var(--shift-end) / 2)); }
  .card-gallery__cards:has(.card-gallery__card:last-child:nth-child(3)):has(.card-gallery__card:nth-child(3).card-gallery__card--active) { transform: translateX(var(--shift-end)); }

  .card-gallery__card {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    width: var(--card-size);
    height: var(--card-height);
    aspect-ratio: auto;
    transition: width var(--bp-dur-expand) var(--bp-ease), box-shadow var(--bp-dur-expand) var(--bp-ease);
  }

  /* Active card widens while media slides to the right panel to create reveal behavior. */
  .card-gallery__card--active {
    width: var(--card-active-size);
    /* Keep grid simple, move media visually to avoid zoom */
    grid-template-columns: 1fr; 
  }
.card-gallery__media {
  grid-column: 1;
  grid-row: 1;
  width: var(--card-media-width);
  height: var(--card-height);
  aspect-ratio: auto;
  transition:
    width var(--bp-dur-expand) var(--bp-ease),
    transform var(--bp-dur-expand) var(--bp-ease),
    aspect-ratio var(--bp-dur-expand) var(--bp-ease),
    box-shadow var(--bp-dur-expand) var(--bp-ease);
}

.card-gallery__card--active .card-gallery__media {
  /* Translate exactly to the right side of the expanded card */
  transform: translateX(calc(var(--card-active-size) - var(--card-media-width)));
  z-index: 15; /* HIGHER THAN CONTENT (10) TO CREATE REVEAL EFFECT */
}


  .card-gallery__content {
    display: flex;
    flex-direction: column;
    grid-column: 1;
    grid-row: 1;
    position: relative; /* Inside card's grid */
    height: 100%;
    padding: 0;
    z-index: 10;
  }

  .card-gallery__overlay {
    position: absolute;
    inset: 0;
    width: var(--card-size);
    max-width: 100%;
    height: 100%;
    padding: 40px;
    z-index: 10;
  }

  .card-gallery__overlay .card-gallery__title,
  .card-gallery__overlay .card-gallery__pre-desc {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition:
      opacity 240ms cubic-bezier(0.2, 0, 0, 1) 120ms,
      transform 240ms cubic-bezier(0.2, 0, 0, 1) 120ms;
  }

  .card-gallery__overlay .card-gallery__pre-desc {
    transition-delay: 180ms;
  }

  /* Desktop 2-card inactive state padding */
  .card-gallery--2-cards .card-gallery__card:not(.card-gallery__card--active) .card-gallery__overlay {
    padding: 40px;
  }

  /* Masaüstünde 2'li kart başlık boyutu */
  .card-gallery--2-cards .card-gallery__card:not(.card-gallery__card--active) .card-gallery__title {
    font-size: 32px;
  }

  /* Masaüstünde artı butonu pozisyonu sabitleme */
  .card-gallery__toggle {
    top: 40px;
    right: 40px;
  }

  /* When active, content stays in first column and uses regular flex flow */
  .card-gallery__card--active .card-gallery__content {
    padding: 60px 40px 40px;
    width: calc(var(--card-active-size) - var(--card-media-width)); /* Stable width for text */
    min-width: calc(var(--card-active-size) - var(--card-media-width));
  }

  .card-gallery__card--active .card-gallery__overlay {
    display: flex !important; /* Mobilde gizlenen overlay'i masaüstünde göster */
    position: relative;
    inset: auto;
    padding: 0;
    height: auto;
    width: auto;
    max-width: none;
    justify-content: flex-start;
  }

  .card-gallery__card--active .card-gallery__overlay .card-gallery__title,
  .card-gallery__card--active .card-gallery__overlay .card-gallery__pre-desc {
    position: absolute;
    top: 0;
    left: 0;
    display: block !important;
    width: var(--card-size);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition-delay: 0ms;
    pointer-events: none;
  }

  .card-gallery__card--active .card-gallery__expanded {
    position: relative;
    padding: 0;
    overflow: visible;
  }
}