/* Enhanced Lazy Loading Effects */

/* Fade-in effect (default) */
.lazyload {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.lazyload.lazy-loaded {
  opacity: 1;
}

/* Loading spinner effect */
.lazyload.lazy-spinner {
  background: radial-gradient(circle, rgba(200, 200, 200, 0.1) 30%, transparent 70%);
  background-size: 20px 20px;
  background-position: center;
  position: relative;
  min-height: 100px;
}

.lazyload.lazy-spinner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid rgba(200, 200, 200, 0.2);
  border-top-color: rgba(100, 150, 200, 0.6);
  border-radius: 50%;
  animation: lazy-spin 0.8s linear infinite;
}

@keyframes lazy-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Blur-up effect (like Medium) */
.lazyload.lazy-blur {
  filter: blur(5px);
  opacity: 0.7;
  transition: filter 0.4s ease-out, opacity 0.4s ease-out;
}

.lazyload.lazy-blur.lazy-loaded {
  filter: blur(0);
  opacity: 1;
}

/* Gradient skeleton loader effect */
.lazyload.lazy-skeleton {
  background: linear-gradient(
    90deg,
    rgba(200, 200, 200, 0.1) 0%,
    rgba(200, 200, 200, 0.2) 50%,
    rgba(200, 200, 200, 0.1) 100%
  );
  background-size: 200% 100%;
  animation: lazy-skeleton-loading 1.5s infinite;
}

.lazyload.lazy-skeleton.lazy-loaded {
  background: none;
  animation: none;
}

@keyframes lazy-skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Slide-in from bottom effect */
.lazyload.lazy-slide {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.lazyload.lazy-slide.lazy-loaded {
  opacity: 1;
  transform: translateY(0);
}

/* Zoom-in effect */
.lazyload.lazy-zoom {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.lazyload.lazy-zoom.lazy-loaded {
  opacity: 1;
  transform: scale(1);
}

/* Glitch/flicker effect on load */
.lazyload.lazy-glitch {
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.lazyload.lazy-glitch.lazy-loaded {
  opacity: 1;
  animation: lazy-glitch 0.3s ease-in-out;
}

@keyframes lazy-glitch {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/* Progressive enhancement: Show aspect ratio boxes while loading */
.lazy-image-wrapper {
  position: relative;
  background: rgba(200, 200, 200, 0.1);
  overflow: hidden;
}

.lazy-image-wrapper img {
  display: block;
  width: 100%;
  height: auto;
}

/* Modernizr - no-js fallback */
.no-js img.lazyload {
  display: none;
}