/* === PORTFOLIO GRID === */
.portfolio-chapter-intro {
  min-height: 100vh;
}

.immersive-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  padding: 0 3px;
  max-width: 1400px;
  margin: 0 auto;
}

/* === BACK BUTTON === */
.gallery-back-btn {
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  margin-bottom: 0.5rem;
  background: none;
  border: 1px solid #ddd;
  border-radius: 100px;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #333;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
  justify-self: start;
}

.gallery-back-btn:hover {
  background: #111;
  color: #fff;
  border-color: #111;
}

.gallery-back-btn svg {
  flex-shrink: 0;
}

/* === CATEGORY HEADING === */
.gallery-category-heading {
  grid-column: 1 / -1;
  font-family: var(--font-display, 'Bodoni Moda', serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #111;
  margin-bottom: 1rem;
}

/* === PROJECT CARDS GRID === */
.project-cards-grid {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

/* === CATEGORY CARD === */
.category-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  background: #f0f0f0;
}

.category-card__image {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.category-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease-out-expo, cubic-bezier(0.19, 1, 0.22, 1));
}

.category-card:hover .category-card__image img {
  transform: scale(1.05);
}

.category-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.65) 0%,
    rgba(0, 0, 0, 0.35) 50%,
    rgba(0, 0, 0, 0.2) 100%
  );
  text-align: center;
  padding: 2rem;
  transition: background 0.5s ease;
}

.category-card:hover .category-card__overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    rgba(0, 0, 0, 0.25) 100%
  );
}

.category-card__name {
  font-family: var(--font-display, 'Bodoni Moda', serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  color: #fff;
  margin-bottom: 0.75rem;
}

.category-card__cta {
  display: inline-block;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  padding: 0.4rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 100px;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

.category-card:hover .category-card__cta {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

/* === COLLECTION CARD (project cards inside category) === */
.collection-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  background: #eee;
  opacity: 0;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.collection-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.collection-card__image-wrapper {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 12px;
}

.collection-card__image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}

.collection-card:hover .collection-card__image-wrapper img {
  transform: scale(1.08);
}

/* Image count badge — top right */
.collection-card__badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.6rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 100px;
  z-index: 2;
}

/* Meta — always visible */
.collection-card__meta {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 1.25rem;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.5) 50%,
    transparent 100%
  );
  border-radius: 0 0 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.collection-card__category {
  display: inline-block;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.collection-card__title {
  font-family: var(--font-display, 'Bodoni Moda', serif);
  font-size: clamp(1.1rem, 2vw, 1.6rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  color: #fff;
  line-height: 1.2;
}

/* View CTA — appears on hover */
.collection-card__view {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.4rem;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.35s ease, color 0.25s ease;
}

.collection-card__view svg {
  transition: transform 0.3s ease;
}

.collection-card:hover .collection-card__view {
  opacity: 1;
  transform: translateY(0);
}

.collection-card:hover .collection-card__view svg {
  transform: translateX(3px);
}

/* === LIGHTBOX === */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0,0,0,0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__image-container {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.3s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox__image.loaded {
  opacity: 1;
}

.lightbox__close {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  transition: background 0.3s;
  z-index: 10;
}

.lightbox__close:hover {
  background: rgba(255,255,255,0.15);
}

.lightbox__prev,
.lightbox__next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #fff;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
  transition: background 0.3s;
  z-index: 10;
}

.lightbox__prev { left: 1.5rem; }
.lightbox__next { right: 1.5rem; }

.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(255,255,255,0.12);
}

.lightbox__counter {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
  z-index: 10;
}

.lightbox__title {
  position: fixed;
  top: 1.5rem;
  left: 1.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--color-text);
  z-index: 10;
}

/* Lightbox loading spinner */
.lightbox__spinner {
  position: absolute;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255,255,255,0.1);
  border-top-color: rgba(255,255,255,0.6);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}