/* ===== SKELETON LOADER STYLES ===== */
/* Reusable skeleton loading animations for async content */

/* Shimmer Animation - smooth gradient sweep */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Pulse Animation - gentle breathing effect */
@keyframes skeleton-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

/* Wave Animation - sequential reveal */
@keyframes skeleton-wave {
  0% {
    transform: translateX(-100%);
  }
  50%, 100% {
    transform: translateX(100%);
  }
}

/* Base skeleton element - Light theme optimized */
.skeleton {
  /* Solid white skeleton block for a professional look; shimmer removed */
  background: #ffffff;
  border-radius: 6px;
  display: inline-block;
  position: relative;
  overflow: hidden;
  border: 1px solid #f2f4f6; /* subtle border to separate from white page background */
  box-shadow: 0 1px 2px rgba(16,24,40,0.03);
}

/* Removed shimmer overlay; we'll use a centered spinner instead */
.skeleton::after {
  content: none;
}

/* Skeleton variants */
.skeleton-text {
  height: 16px;
  width: 100%;
  margin-bottom: 8px;
}

.skeleton-text-short {
  width: 60%;
}

.skeleton-text-medium {
  width: 80%;
}

.skeleton-text-long {
  width: 100%;
}

.skeleton-heading {
  height: 32px;
  width: 40%;
  margin-bottom: 16px;
}

.skeleton-card {
  height: 200px;
  width: 100%;
  border-radius: 8px;
  margin-bottom: 16px;
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

.skeleton-avatar-large {
  width: 80px;
  height: 80px;
  border-radius: 50%;
}

.skeleton-button {
  height: 40px;
  width: 120px;
  border-radius: 4px;
}

.skeleton-image {
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  border-radius: 4px;
}

/* Report history skeleton */
.skeleton-report-item {
  background-color: #f9f9f9;
  border: 1px solid #e9e9e9;
  border-radius: 6px;
  padding: 15px;
  margin-bottom: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.skeleton-report-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-report-ticker {
  height: 24px;
  width: 80px;
  border-radius: 4px;
}

.skeleton-report-title {
  height: 16px;
  width: 200px;
  border-radius: 4px;
}

.skeleton-report-date {
  height: 14px;
  width: 120px;
  border-radius: 4px;
}

.skeleton-report-actions {
  display: flex;
  gap: 8px;
}

.skeleton-report-button {
  height: 36px;
  width: 80px;
  border-radius: 4px;
}

/* Dashboard stats skeleton */
.skeleton-stat-card {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.skeleton-stat-label {
  height: 14px;
  width: 60%;
  margin-bottom: 12px;
  border-radius: 4px;
}

.skeleton-stat-value {
  height: 32px;
  width: 40%;
  border-radius: 4px;
}

/* Grid layouts for skeletons */
.skeleton-grid {
  display: grid;
  gap: 1.5rem;
}

.skeleton-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.skeleton-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Loading container */
.loading-container {
  position: relative;
  min-height: 200px;
}

.skeleton-loading { position: relative; }

.skeleton-with-spinner .loading-overlay { 
  background: transparent !important; /* Make it fully transparent to reveal page background */
  backdrop-filter: none !important; /* Remove blur effect */
  box-shadow: none !important; /* Remove any overlay shadow */
  pointer-events: none; /* Allow interactions with page while spinner is showing (optional) */
}

.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  backdrop-filter: blur(2px);
}

/* Spinner for inline loading */
.skeleton-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(22,163,74,0.12); /* subtle ring background */
  border-top: 4px solid var(--news-primary, var(--primary, #16a34a)); /* primary green */
  border-radius: 50%;
  animation: spin 1s linear infinite;
  box-shadow: 0 2px 6px rgba(16,24,40,0.06);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Hide actual content while loading */
.content-loading {
  opacity: 0;
  pointer-events: none;
}

.content-loaded {
  animation: fadeInContent 0.3s ease-in;
}

@keyframes fadeInContent {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Accessibility */
.skeleton[aria-hidden="true"] {
  position: relative;
}

.skeleton[aria-label]::before {
  content: attr(aria-label);
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .skeleton-report-title {
    width: 150px;
  }
  
  .skeleton-report-button {
    width: 60px;
  }
  
  .skeleton-grid-2,
  .skeleton-grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
  .skeleton {
    background: linear-gradient(
      90deg,
      #2a2a2a 0%,
      #3a3a3a 20%,
      #2a2a2a 40%,
      #2a2a2a 100%
    );
  }
  
  .skeleton-report-item {
    background-color: #1a1a1a;
    border-color: #3a3a3a;
  }
}