/* Circle Lightbox */

.clb-body-lock {
  overflow: hidden;
}

.clb-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  visibility: hidden;
}

.clb-overlay.clb-open {
  visibility: visible;
  pointer-events: auto;
}

/* Backdrop: circle from center → covers screen → optional morph to full rect */
.clb-backdrop {
  --clb-cover: 150vmax;
  --clb-cover: calc(hypot(100vw, 100vh) + 4px);
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  margin: 0;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  background: linear-gradient(
    135deg,
    var(--clb-c1, #1a1a2e) 0%,
    var(--clb-c2, #16213e) 50%,
    var(--clb-c1, #1a1a2e) 100%
  );
  background-size: 200% 200%;
  animation: clb-gradient-shift 6s ease-in-out infinite;
  will-change: top, left, width, height, border-radius, transform;
}

.clb-backdrop.clb-backdrop--visible {
  animation:
    clb-gradient-shift 6s ease-in-out infinite,
    clb-backdrop-in-circle var(--clb-open-duration, 600ms) cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.clb-backdrop.clb-backdrop--morph.clb-backdrop--visible {
  animation:
    clb-gradient-shift 6s ease-in-out infinite,
    clb-backdrop-in-morph var(--clb-open-duration, 600ms) cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.clb-backdrop.clb-backdrop--out {
  animation:
    clb-gradient-shift 6s ease-in-out infinite,
    clb-backdrop-out-circle var(--clb-open-duration, 600ms) cubic-bezier(0.4, 0, 0.6, 1) forwards;
}

.clb-backdrop.clb-backdrop--morph.clb-backdrop--out {
  animation:
    clb-gradient-shift 6s ease-in-out infinite,
    clb-backdrop-out-morph var(--clb-open-duration, 600ms) cubic-bezier(0.4, 0, 0.6, 1) forwards;
}

/* Circle only — ends as circle covering entire viewport */
@keyframes clb-backdrop-in-circle {
  0% {
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  100% {
    top: 50%;
    left: 50%;
    width: var(--clb-cover);
    height: var(--clb-cover);
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
}

/* Circle expands, then morphs to full-screen rectangle */
@keyframes clb-backdrop-in-morph {
  0% {
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  52% {
    top: 50%;
    left: 50%;
    width: var(--clb-cover);
    height: var(--clb-cover);
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  100% {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
    transform: none;
  }
}

@keyframes clb-backdrop-out-circle {
  0% {
    top: 50%;
    left: 50%;
    width: var(--clb-cover);
    height: var(--clb-cover);
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  100% {
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
}

@keyframes clb-backdrop-out-morph {
  0% {
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
    transform: none;
  }
  48% {
    top: 50%;
    left: 50%;
    width: var(--clb-cover);
    height: var(--clb-cover);
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  100% {
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
}

@keyframes clb-gradient-shift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Image stage — bounce after backdrop */
.clb-stage {
  position: relative;
  z-index: 2;
  max-width: min(92vw, 1200px);
  max-height: 85vh;
  opacity: 0;
  transform: translateY(-28px) scale(0.92);
  transition: none;
  pointer-events: none;
}

.clb-stage.clb-stage--visible {
  animation: clb-image-bounce-in 0.48s cubic-bezier(0.34, 1.45, 0.64, 1) forwards;
  pointer-events: auto;
}

.clb-overlay.clb-closing .clb-stage,
.clb-overlay.clb-closing .clb-stage.clb-stage--visible {
  animation: clb-image-slide-out 0.38s cubic-bezier(0.55, 0.06, 0.68, 0.19) forwards;
  pointer-events: none;
}

@keyframes clb-image-bounce-in {
  0% {
    opacity: 0;
    transform: translateY(-28px) scale(0.92);
  }
  55% {
    opacity: 1;
    transform: translateY(6px) scale(1.02);
  }
  75% {
    transform: translateY(-3px) scale(0.99);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes clb-image-slide-out {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(48px) scale(0.94);
  }
}

.clb-image {
  display: block;
  max-width: min(92vw, 1200px);
  max-height: 85vh;
  width: auto;
  height: auto;
  margin: 0 auto;
  border-radius: 4px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35);
  object-fit: contain;
}

/* Close — top right */
.clb-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 3;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transform: scale(0.8);
  transition: background 0.2s, opacity 0.25s, transform 0.25s;
}

.clb-overlay.clb-open .clb-close {
  opacity: 1;
  transform: scale(1);
  transition-delay: calc(var(--clb-open-duration, 600ms) * 0.82);
}

.clb-close:hover,
.clb-close:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  outline: none;
}

.clb-close-icon {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0 auto;
  position: relative;
}

.clb-close-icon::before,
.clb-close-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.clb-close-icon::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.clb-close-icon::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.clb-close .fa {
  font-size: 1.35rem;
}

/* Gallery nav — large prev / next */
.clb-nav {
  position: absolute;
  top: 50%;
  z-index: 3;
  transform: translateY(-50%);
  width: 4.5rem;
  height: 4.5rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  transition: background 0.2s, opacity 0.25s, transform 0.2s;
}

.clb-overlay.clb-open .clb-nav {
  opacity: 1;
  transition-delay: calc(var(--clb-open-duration, 600ms) * 0.82);
}

.clb-nav:hover,
.clb-nav:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  outline: none;
}

.clb-prev {
  left: 1.5rem;
}

.clb-next {
  right: 1.5rem;
}

.clb-nav span {
  display: block;
  margin-top: -0.1em;
}

@media (max-width: 640px) {
  .clb-nav {
    width: 3.25rem;
    height: 3.25rem;
    font-size: 1.5rem;
  }

  .clb-prev {
    left: 0.75rem;
  }

  .clb-next {
    right: 0.75rem;
  }

  .clb-close {
    top: 0.75rem;
    right: 0.75rem;
    width: 2.5rem;
    height: 2.5rem;
  }
}