/* ========== SKELETON LOADING STYLES ========== */

/* Skeleton Base Styles */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--icon-bg) 25%,
    rgba(255, 255, 255, 0.2) 50%,
    var(--icon-bg) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Skeleton Card Variants */
.skeleton-card {
  background: var(--card-bg);
  padding: 15px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.skeleton-icon {
  width: 100%;
  height: 60px;
  margin-bottom: 10px;
  border-radius: 12px;
}

.skeleton-text {
  height: 12px;
  margin-bottom: 8px;
}

.skeleton-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 15px;
}

.skeleton-profile {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 16px;
  text-align: center;
}

.skeleton-review {
  background: var(--icon-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 15px;
  margin-bottom: 15px;
}

/* Grid of Skeletons */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  padding: 0 20px;
}

@media (max-width: 600px) {
  .skeleton-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Loading State */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Fade animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Card fade in after skeleton disappears */
.app-card {
  animation: fadeIn 0.3s ease-in;
}

/* ========== LAZY LOADING STYLES ========== */

/* Image placeholders */
img[data-src] {
  background: linear-gradient(
    90deg,
    var(--icon-bg) 25%,
    rgba(255, 255, 255, 0.2) 50%,
    var(--icon-bg) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  min-height: 200px;
}

/* Loaded image styles */
img.lazy-loaded {
  animation: fadeIn 0.3s ease-in;
}

/* Error state */
img.lazy-error {
  background: var(--icon-bg);
  opacity: 0.5;
}

/* Blur up effect (optional enhancement) */
.lazy-blur {
  filter: blur(5px);
  transition: filter 0.3s ease;
}

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

/* Dark theme adjustments */
[data-theme="dark"] .skeleton {
  background: linear-gradient(
    90deg,
    #334155 25%,
    rgba(148, 163, 184, 0.2) 50%,
    #334155 75%
  );
}

[data-theme="dark"] img[data-src] {
  background: linear-gradient(
    90deg,
    #334155 25%,
    rgba(148, 163, 184, 0.2) 50%,
    #334155 75%
  );
  background-size: 200% 100%;
}