/**
 * GVA Block Builder Lazy Loader Styles
 * CSS for loading states, skeleton screens, and smooth transitions
 */

/* ========================================
   Base Lazy Loading States
   ======================================== */

/* Base lazy elements - positioned for spinners */
.gva-lazy-load {
  position: relative;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Default spinner on all lazy elements (no-JS fallback) */
.gva-lazy-load::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 3px solid rgba(0, 0, 0, 0.2);
  border-top-color: rgba(0, 0, 0, 0.8);
  border-radius: 50%;
  animation: gva-spinner 1s linear infinite;
  z-index: 10;
  background: rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* JavaScript enabled - only show spinner during loading */
.gva-lazy-loading-enabled .gva-lazy-load::after {
  display: none; /* Hide default spinner when JS is enabled */
}

.gva-lazy-loading-enabled .gva-lazy-loading::after {
  display: block; /* Show spinner only during active loading when JS enabled */
}

/* Hide spinner once native lazy image has loaded (no-JS fallback) */
.gva-lazy-load img[loading="lazy"]:not([src*="data:"]) + *::after,
.gva-lazy-load img[loading="lazy"]:not([src*="placeholder"]) + *::after {
  display: none;
}

/* Alternative: Hide spinner when image src changes from placeholder */
img.gva-lazy-load[loading="lazy"]:not([src*="data:"]):not([src*="placeholder"])::after {
  display: none;
}

/* Elements being lazy loaded (JavaScript enhanced) */
.gva-lazy-loading {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Successfully loaded elements */
.gva-lazy-loaded {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Failed to load elements */
.gva-lazy-error {
  opacity: 0.5;
  position: relative;
}

.gva-lazy-error::after {
  content: "⚠";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ff6b6b;
  font-size: 2em;
  z-index: 1;
}

/* ========================================
   Skeleton Loading Animations
   ======================================== */

/* Base skeleton styles */
.gva-lazy-skeleton {
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.05) 25%,
    rgba(0, 0, 0, 0.15) 37%,
    rgba(0, 0, 0, 0.05) 63%
  );
  background-size: 400% 100%;
  animation: gva-skeleton-loading 1.5s ease-in-out infinite;
  border-radius: 4px;
  min-height: 200px; /* Default min height */
  position: relative;
  overflow: hidden;
}

/* Dark theme skeleton */
.dark .gva-lazy-skeleton,
[data-theme=\"dark\"] .gva-lazy-skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.1) 25%,
    rgba(255, 255, 255, 0.2) 37%,
    rgba(255, 255, 255, 0.1) 63%
  );
}

/* Skeleton animation keyframes */
@keyframes gva-skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ========================================
   Skeleton Variants for Different Elements
   ======================================== */

/* Image skeleton */
img.gva-lazy-skeleton {
  min-height: 200px;
  width: 100%;
  object-fit: cover;
}

/* Small image skeleton */
img.gva-lazy-skeleton.gva-skeleton-small {
  min-height: 100px;
}

/* Large image skeleton */
img.gva-lazy-skeleton.gva-skeleton-large {
  min-height: 400px;
}

/* Video skeleton */
video.gva-lazy-skeleton {
  min-height: 300px;
  background-color: #f0f0f0;
}

/* Content block skeleton */
.gva-lazy-skeleton.gva-content-block {
  min-height: 150px;
  border-radius: 8px;
}

/* Card skeleton */
.gva-lazy-skeleton.gva-card-skeleton {
  min-height: 250px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* ========================================
   Loading Indicators & Spinners
   ======================================== */

/* Base loading overlay */
.gva-lazy-loading {
  position: relative;
}

/* Default spinner - appears on all loading elements */
.gva-lazy-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 3px solid rgba(0, 0, 0, 0.2);
  border-top-color: rgba(0, 0, 0, 0.8);
  border-radius: 50%;
  animation: gva-spinner 1s linear infinite;
  z-index: 10;
  background: rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* Enhanced spinner for complex content */
.gva-lazy-loading.gva-show-spinner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 48px;
  height: 48px;
  margin: -24px 0 0 -24px;
  border: 4px solid rgba(0, 0, 0, 0.15);
  border-top-color: rgba(0, 0, 0, 0.7);
  border-right-color: #007cba;
  border-radius: 50%;
  animation: gva-spinner-enhanced 0.8s ease-in-out infinite;
  z-index: 11;
}

/* Spinner animations */
@keyframes gva-spinner {
  to {
    transform: rotate(360deg);
  }
}

@keyframes gva-spinner-enhanced {
  0% {
    transform: rotate(0deg) scale(1);
    opacity: 1;
  }
  50% {
    transform: rotate(180deg) scale(1.1);
    opacity: 0.8;
  }
  100% {
    transform: rotate(360deg) scale(1);
    opacity: 1;
  }
}

/* Pulsing dot spinner */
.gva-lazy-loading.gva-pulse-spinner::after {
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  background: #007cba;
  border: none;
  border-radius: 50%;
  animation: gva-pulse 1.5s ease-in-out infinite;
}

@keyframes gva-pulse {
  0%, 100% {
    transform: scale(0.5);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
}

/* Gaming theme spinner */
.gva-lazy-loading.gaming-theme::after {
  border-top-color: #ffd700;
  border-right-color: #ff6b35;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

/* Casino spinner with slots effect */
.casino-card.gva-lazy-loading::after {
  content: '🎰';
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.9), rgba(255, 0, 0, 0.7));
  border: 3px solid #ffd700;
  border-radius: 50%;
  font-size: 20px;
  line-height: 34px;
  text-align: center;
  animation: gva-casino-spin 1.2s ease-in-out infinite;
}

@keyframes gva-casino-spin {
  0%, 100% {
    transform: rotate(0deg) scale(1);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
  }
  25% {
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
  }
  50% {
    transform: rotate(180deg) scale(0.9);
    box-shadow: 0 0 30px rgba(255, 0, 0, 0.6);
  }
  75% {
    transform: rotate(270deg) scale(1.1);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
  }
}

/* Multiple dots spinner */
.gva-lazy-loading.gva-dots-spinner::after {
  content: '';
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -16px;
  background: #007cba;
  border: none;
  border-radius: 50%;
  box-shadow: 
    16px 0 0 0 #007cba,
    32px 0 0 0 #007cba;
  animation: gva-dots 1.4s ease-in-out infinite;
}

@keyframes gva-dots {
  0%, 44% {
    background: rgba(0, 124, 186, 0.3);
    box-shadow: 
      16px 0 0 0 rgba(0, 124, 186, 0.3),
      32px 0 0 0 rgba(0, 124, 186, 0.3);
  }
  22% {
    background: #007cba;
    box-shadow: 
      16px 0 0 0 rgba(0, 124, 186, 0.3),
      32px 0 0 0 rgba(0, 124, 186, 0.3);
  }
  44% {
    background: rgba(0, 124, 186, 0.3);
    box-shadow: 
      16px 0 0 0 #007cba,
      32px 0 0 0 rgba(0, 124, 186, 0.3);
  }
  66% {
    background: rgba(0, 124, 186, 0.3);
    box-shadow: 
      16px 0 0 0 rgba(0, 124, 186, 0.3),
      32px 0 0 0 #007cba;
  }
}

/* Progress bar for content loading */
.gva-lazy-progress {
  position: relative;
  background-color: #f0f0f0;
  border-radius: 4px;
  overflow: hidden;
  height: 4px;
  margin: 10px 0;
}

.gva-lazy-progress::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 124, 186, 0.4),
    transparent
  );
  animation: gva-progress 2s ease-in-out infinite;
}

@keyframes gva-progress {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* ========================================
   Background Image Lazy Loading
   ======================================== */

/* Elements with lazy background images */
[data-lazy-bg] {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 200px;
  position: relative;
}

/* Background image loading state */
[data-lazy-bg].gva-lazy-loading {
  background-color: #f5f5f5;
}

[data-lazy-bg].gva-lazy-loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(240, 240, 240, 0.8) 25%,
    transparent 25%,
    transparent 50%,
    rgba(240, 240, 240, 0.8) 50%,
    rgba(240, 240, 240, 0.8) 75%,
    transparent 75%
  );
  background-size: 20px 20px;
  animation: gva-bg-loading 0.5s linear infinite;
}

@keyframes gva-bg-loading {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 20px 20px;
  }
}

/* ========================================
   Responsive Skeleton Adjustments
   ======================================== */

/* Tablet adjustments */
@media (max-width: 768px) {
  .gva-lazy-skeleton {
    min-height: 150px;
  }
  
  img.gva-lazy-skeleton.gva-skeleton-large {
    min-height: 250px;
  }
  
  .gva-lazy-skeleton.gva-card-skeleton {
    min-height: 200px;
  }
}

/* Mobile adjustments */
@media (max-width: 480px) {
  .gva-lazy-skeleton {
    min-height: 120px;
  }
  
  img.gva-lazy-skeleton.gva-skeleton-large {
    min-height: 200px;
  }
  
  .gva-lazy-skeleton.gva-card-skeleton {
    min-height: 150px;
  }
}

/* ========================================
   Accessibility & Performance
   ======================================== */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  .gva-lazy-loading,
  .gva-lazy-skeleton,
  .gva-lazy-loading.gva-show-spinner::before,
  .gva-lazy-progress::before,
  [data-lazy-bg].gva-lazy-loading::before {
    animation: none !important;
    transition: none !important;
  }
  
  /* Still show loading states, just without animation */
  .gva-lazy-skeleton {
    background: rgba(240, 240, 240, 0.3);
  }
  
  .dark .gva-lazy-skeleton,
  [data-theme=\"dark\"] .gva-lazy-skeleton {
    background: rgba(255, 255, 255, 0.15);
  }
}

/* High contrast mode adjustments */
@media (prefers-contrast: high) {
  .gva-lazy-skeleton {
    background: repeating-linear-gradient(
      45deg,
      #ccc,
      #ccc 10px,
      #ddd 10px,
      #ddd 20px
    );
  }
  
  .gva-lazy-error::after {
    background: #fff;
    border: 2px solid #000;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    line-height: 26px;
    text-align: center;
  }
}

/* ========================================
   Gaming/Casino Theme Adjustments
   ======================================== */

/* Special styling for gaming content */
.gva-lazy-skeleton.gaming-theme {
  background: linear-gradient(
    90deg,
    rgba(255, 215, 0, 0.1) 25%,
    rgba(255, 215, 0, 0.3) 37%,
    rgba(255, 215, 0, 0.1) 63%
  );
  border: 1px solid rgba(255, 215, 0, 0.3);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.1);
}

/* Casino card loading */
.casino-card.gva-lazy-skeleton {
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.2),
    rgba(255, 0, 0, 0.1),
    rgba(255, 215, 0, 0.2)
  );
  border-radius: 15px;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}

.casino-card.gva-lazy-skeleton::after {
  content: '🎰';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3em;
  opacity: 0.3;
}

/* ========================================
   Block Builder Specific Lazy Loading
   ======================================== */

/* GVA Block Builder Lazy Loading Spinner */
.gva-blockbuilder-lazy {
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  border-radius: 8px;
  margin: 20px 0;
}

.gva-blockbuilder-spinner {
  text-align: center;
  padding: 40px 20px;
}

.gva-blockbuilder-spinner::before {
  content: '';
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid #e3e3e3;
  border-top: 4px solid #007cba;
  border-radius: 50%;
  animation: gva-spin 1s linear infinite;
  margin-bottom: 20px;
}

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

.gva-blockbuilder-spinner .spinner-text {
  color: #666;
  font-size: 16px;
  font-weight: 500;
}

/* Gaming theme spinner */
.gaming-theme .gva-blockbuilder-spinner::before {
  border-color: rgba(255, 215, 0, 0.3);
  border-top-color: #ffd700;
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.gaming-theme .gva-blockbuilder-spinner .spinner-text {
  color: #ffd700;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

/* Error state */
.gva-blockbuilder-lazy .error {
  color: #dc3545;
  background: #f8d7da;
  border: 1px solid #f5c6cb;
  padding: 15px;
  border-radius: 4px;
  text-align: center;
}

/* Block Builder container */
.gva-blockbuilder-lazy-container {
  min-height: 200px;
  position: relative;
}

/* Block Builder loading indicator */
.gva-blockbuilder-loading {
  display: block;
  text-align: center;
  padding: 40px 20px;
}

/* Block Builder skeleton */
.gva-blockbuilder-skeleton {
  max-width: 800px;
  margin: 0 auto 20px;
}

.gva-skeleton-row {
  height: 20px;
  background: linear-gradient(
    90deg,
    rgba(240, 240, 240, 0.2) 25%,
    rgba(240, 240, 240, 0.4) 37%,
    rgba(240, 240, 240, 0.2) 63%
  );
  background-size: 400% 100%;
  animation: gva-skeleton-loading 1.5s ease-in-out infinite;
  border-radius: 4px;
  margin-bottom: 15px;
}

.gva-skeleton-row.gva-skeleton-short {
  width: 60%;
}

/* Block Builder loading message */
.gva-blockbuilder-loading .gva-loading-message {
  color: #666;
  font-size: 16px;
  font-weight: 500;
  margin-top: 20px;
}

/* Gaming theme for Block Builder */
.gaming-theme .gva-blockbuilder-loading .gva-loading-message {
  color: #ffd700;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.gaming-theme .gva-skeleton-row {
  background: linear-gradient(
    90deg,
    rgba(255, 215, 0, 0.1) 25%,
    rgba(255, 215, 0, 0.3) 37%,
    rgba(255, 215, 0, 0.1) 63%
  );
  border: 1px solid rgba(255, 215, 0, 0.2);
}

/* Hide loading indicator when content is loaded */
.gva-lazy-loaded .gva-blockbuilder-loading {
  display: none;
}

/* Show content wrapper when loaded */
.gva-lazy-loaded .gva-lazy-content-wrapper {
  display: block !important;
  animation: gva-fade-in 0.5s ease-in-out;
}

@keyframes gva-fade-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   Row-Level Lazy Loading
   ======================================== */

/* Container for lazy-loaded rows */
.gva-lazy-row-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  transition: all 0.3s ease;
}

/* Lazy row loading state */
.gva-lazy-row.gva-lazy-loading {
  min-height: 300px; /* Default row height */
}

/* Row placeholder container */
.gva-lazy-placeholder {
  position: relative;
  width: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.08) 25%,
    rgba(0, 0, 0, 0.15) 37%,
    rgba(0, 0, 0, 0.08) 63%
  );
  background-size: 400% 100%;
  animation: gva-skeleton-loading 2s ease-in-out infinite;
}

/* Row content container (initially hidden) */
.gva-lazy-content-container {
  width: 100%;
}

/* Row skeleton content */
.gva-lazy-skeleton-content {
  width: 100%;
  padding: 20px;
  box-sizing: border-box;
}

.skeleton-row {
  display: flex;
  gap: 20px;
  width: 100%;
}

.skeleton-col {
  flex: 1;
  min-height: 150px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  position: relative;
  overflow: hidden;
}

.skeleton-pulse {
  animation: gva-skeleton-pulse 1.8s ease-in-out infinite;
}

@keyframes gva-skeleton-pulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.7;
  }
}

/* Row placeholder text */
.gva-lazy-placeholder-text {
  margin-top: 20px;
  font-size: 14px;
  color: #666;
  text-align: center;
  opacity: 0.8;
}

/* Row spinner styles */
.gva-lazy-row .gva-lazy-spinner {
  position: relative;
  margin-bottom: 20px;
}

.gva-lazy-row .gva-lazy-spinner.spinner-default .spinner-default,
.gva-lazy-row .gva-lazy-spinner .spinner-default {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(0, 0, 0, 0.15);
  border-top-color: rgba(0, 0, 0, 0.7);
  border-radius: 50%;
  animation: gva-spinner 1s linear infinite;
}

/* Enhanced row loading animation */
.gva-lazy-row.gva-lazy-fadeIn {
  animation: gva-row-fade-in 0.6s ease-out;
}

.gva-lazy-row.gva-lazy-slideUp {
  animation: gva-row-slide-up 0.5s ease-out;
}

.gva-lazy-row.gva-lazy-scaleIn {
  animation: gva-row-scale-in 0.4s ease-out;
}

@keyframes gva-row-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes gva-row-slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gva-row-scale-in {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Row loading success state */
.gva-lazy-row.gva-lazy-loaded .gva-lazy-placeholder {
  display: none;
}

.gva-lazy-row.gva-lazy-loaded .gva-lazy-content-container {
  display: block !important;
  animation: gva-row-fade-in 0.4s ease-in;
}

/* Row loading error state */
.gva-lazy-row.gva-lazy-error {
  min-height: 200px;
}

.gva-lazy-row.gva-lazy-error .gva-lazy-placeholder {
  background: rgba(255, 182, 193, 0.3);
  color: #d32f2f;
}

.gva-lazy-row.gva-lazy-error .gva-lazy-placeholder::before {
  content: '⚠';
  font-size: 32px;
  margin-bottom: 10px;
}

/* Responsive row placeholders */
@media (max-width: 768px) {
  .gva-lazy-row.gva-lazy-loading {
    min-height: 200px;
  }
  
  .gva-lazy-placeholder {
    min-height: 200px;
    padding: 15px;
  }
  
  .skeleton-row {
    flex-direction: column;
    gap: 15px;
  }
  
  .skeleton-col {
    min-height: 100px;
  }
}

@media (max-width: 480px) {
  .gva-lazy-row.gva-lazy-loading {
    min-height: 150px;
  }
  
  .gva-lazy-placeholder {
    min-height: 150px;
    padding: 10px;
  }
  
  .skeleton-col {
    min-height: 80px;
  }
}

/* Dark theme support for rows */
.dark .gva-lazy-placeholder,
[data-theme="dark"] .gva-lazy-placeholder {
  background: linear-gradient(
    90deg,
    rgba(64, 64, 64, 0.8) 25%,
    rgba(64, 64, 64, 0.4) 37%,
    rgba(64, 64, 64, 0.8) 63%
  );
}

.dark .skeleton-col,
[data-theme="dark"] .skeleton-col {
  background: rgba(96, 96, 96, 0.6);
}

.dark .gva-lazy-placeholder-text,
[data-theme="dark"] .gva-lazy-placeholder-text {
  color: #ccc;
}

/* ========================================
   Utility Classes
   ======================================== */

/* Force immediate loading (bypass lazy loading) */
.gva-no-lazy {
  /* This class can be used to exclude elements from lazy loading */
}

/* Priority loading (load first) */
.gva-priority-load {
  /* Elements with this class should be loaded with higher priority */
}

/* Fade-in animation override */
.gva-fade-in-fast {
  transition: opacity 0.15s ease !important;
}

.gva-fade-in-slow {
  transition: opacity 0.6s ease !important;
}

/* Custom loading message */
.gva-loading-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.95);
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 14px;
  color: #666;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 3;
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
  .gva-lazy-loading,
  .gva-lazy-skeleton,
  .gva-lazy-error {
    /* Ensure content is visible in print */
    opacity: 1 !important;
    background: none !important;
    animation: none !important;
  }
  
  .gva-lazy-loading.gva-show-spinner::before {
    display: none !important;
  }
}