/* ============================================================
   Swiper Gallery — Service Detail Pages
   Hardware-accelerated, LQIP blur-up, synced thumbs
   ============================================================ */

/* ---- Container ---- */
.swiper-gallery {
  --gallery-radius: 12px;
  --gallery-max-w: 900px;
  --thumb-size: 80px;
  --thumb-gap: 8px;
  --accent: #2ecc71;
  max-width: var(--gallery-max-w);
  margin: 0 auto;
  user-select: none;
  -webkit-user-select: none;
}

/* ---- Main Slider ---- */
.swiper-gallery__main {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--gallery-radius);
  overflow: hidden;
  background: #fff;
}

.swiper-gallery__main .swiper {
  width: 100%;
  height: 100%;
}

.swiper-gallery__main .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  /* GPU layer promotion for silky 60 fps transforms */
  will-change: transform;
  transform: translateZ(0);
}

.swiper-gallery__main .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  /* Prevent main-thread decode blocking */
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* ---- LQIP blur-up effect ---- */
.swiper-gallery__main .swiper-slide img.lqip-blur {
  filter: blur(20px);
  transition: filter 0.5s ease-out;
}

.swiper-gallery__main .swiper-slide img.lqip-loaded {
  filter: blur(0);
}

/* Spinner shown while high-res loads */
.swiper-gallery__main .swiper-slide .slide-spinner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.3s ease;
  z-index: 2;
}

.swiper-gallery__main .swiper-slide .slide-spinner::after {
  content: '';
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: gallery-spin 0.7s linear infinite;
}

.swiper-gallery__main .swiper-slide.slide-ready .slide-spinner {
  opacity: 0;
}

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

/* ---- Navigation Arrows (main slider) ---- */
.swiper-gallery__main .swiper-button-next,
.swiper-gallery__main .swiper-button-prev {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  color: #fff;
  transition: background 0.2s, transform 0.15s;
}

.swiper-gallery__main .swiper-button-next:hover,
.swiper-gallery__main .swiper-button-prev:hover {
  background: rgba(0,0,0,0.7);
  transform: scale(1.08);
}

.swiper-gallery__main .swiper-button-next::after,
.swiper-gallery__main .swiper-button-prev::after {
  font-size: 18px;
  font-weight: 700;
}

/* ---- Thumbnail Slider ---- */
.swiper-gallery__thumbs {
  margin-top: 12px;
  padding: 4px 0;
}

.swiper-gallery__thumbs .swiper {
  padding: 4px 2px;
}

.swiper-gallery__thumbs .swiper-slide {
  width: var(--thumb-size) !important;
  height: calc(var(--thumb-size) * 0.7);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.5;
  transition: opacity 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
  /* GPU promote for smooth highlight transitions */
  transform: translateZ(0);
  will-change: opacity, transform;
}

.swiper-gallery__thumbs .swiper-slide-thumb-active {
  opacity: 1;
  border-color: var(--accent);
  transform: translateZ(0) scale(1.06);
}

.swiper-gallery__thumbs .swiper-slide:hover:not(.swiper-slide-thumb-active) {
  opacity: 0.8;
}

.swiper-gallery__thumbs .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  transform: translateZ(0);
}

/* ---- Image counter badge ---- */
.swiper-gallery__counter {
  position: absolute;
  bottom: 12px;
  right: 12px;
  z-index: 10;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

/* ---- Fullscreen button ---- */
.swiper-gallery__fullscreen {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.swiper-gallery__fullscreen:hover {
  background: rgba(0,0,0,0.7);
  transform: scale(1.08);
}

.swiper-gallery__fullscreen svg {
  width: 20px;
  height: 20px;
}

/* ---- Fullscreen mode ---- */
.swiper-gallery--fullscreen {
  position: fixed;
  inset: 0;
  z-index: 99999;
  width: 100vw;
  height: 100vh;
  max-width: none;
  margin: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(25px) saturate(180%);
  -webkit-backdrop-filter: blur(25px) saturate(180%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 0;
  overflow: hidden;
}

.swiper-gallery--fullscreen .swiper-gallery__main {
  width: 100%;
  height: 100%;
  aspect-ratio: auto;
  border-radius: 0;
  max-height: 100vh;
  background: transparent;
}

/* Hide thumbnails in fullscreen — image only */
.swiper-gallery--fullscreen .swiper-gallery__thumbs {
  display: none;
}

/* Counter repositioned to top-left */
.swiper-gallery--fullscreen .swiper-gallery__counter {
  bottom: auto;
  top: 16px;
  left: 16px;
  right: auto;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 14px;
  padding: 6px 14px;
}

/* Fullscreen exit button — top-right, larger */
.swiper-gallery--fullscreen .swiper-gallery__fullscreen {
  position: fixed;
  top: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  padding: 10px;
  z-index: 100000;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Navigation arrows in fullscreen — fixed position, vertically centered */
.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-prev,
.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-next {
  width: 52px;
  height: 52px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-prev {
  left: 32px;
}

.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-next {
  right: 32px;
}

.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-next::after,
.swiper-gallery--fullscreen .swiper-gallery__main .swiper-button-prev::after {
  font-size: 20px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 600px) {
  .swiper-gallery {
    --thumb-size: 60px;
    --gallery-radius: 8px;
  }

  .swiper-gallery__main .swiper-button-next,
  .swiper-gallery__main .swiper-button-prev {
    width: 36px;
    height: 36px;
  }

  .swiper-gallery__main .swiper-button-next::after,
  .swiper-gallery__main .swiper-button-prev::after {
    font-size: 14px;
  }

  .swiper-gallery__counter {
    font-size: 11px;
    padding: 3px 8px;
  }

  .swiper-gallery__fullscreen {
    width: 34px;
    height: 34px;
    padding: 6px;
    top: 8px;
    right: 8px;
  }
}

@media (min-width: 768px) {
  .swiper-gallery {
    --thumb-size: 100px;
  }

  .swiper-gallery__main .swiper-button-next,
  .swiper-gallery__main .swiper-button-prev {
    width: 48px;
    height: 48px;
  }
}

@media (min-width: 1024px) {
  .swiper-gallery {
    --thumb-size: 120px;
  }
}

/* ============================================================
   Portfolio-page overrides (card grid + modal gallery)
   ============================================================ */

/* Portfolio project cards keep their existing grid styling from
   portfolio.css. The Swiper gallery is only injected inside the
   project modal, which reuses the same .swiper-gallery classes. */

.project-modal .swiper-gallery {
  --gallery-max-w: 100%;
}

.project-modal .swiper-gallery__main {
  aspect-ratio: 16 / 10;
  border-radius: 8px 8px 0 0;
}