/* File: resources/js/styles/unified-content-view.css */

/* CSS Custom Properties */
:root {
  --shimmer-height-title: 20px;
  --shimmer-height-meta: 14px;
  --touch-target-min: 44px;
}

/* Base Content View */
.content-view {
  min-height: 100vh;
  padding: 1rem 1rem 2rem;
  width: 100%;
  position: relative;
}

/* Content Grid - Unified responsive grid system */
.content-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-lg);
  padding: 0;
  position: relative;
  z-index: 1;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* Initial Loading Overlay */
.initial-loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1.5rem;
}

.initial-loading-content {
  text-align: center;
  color: white;
}

.initial-loading-spinner {
  width: 80px;
  height: 80px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1.5rem;
}

.initial-loading-text {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.initial-loading-subtext {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Category Change Loading Overlay */
.category-loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}

.category-loading-content {
  text-align: center;
  color: white;
}

.category-loading-spinner {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

.category-loading-text {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.category-loading-subtext {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

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

/* Shimmer Loading System */
.shimmer-grid {
  display: contents;
}

.shimmer-card {
  position: relative;
  animation: shimmer-appear 0.3s ease forwards;
  animation-delay: var(--delay, 0s);
  width: 100%;
}

@keyframes shimmer-appear {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.shimmer-thumbnail {
  /* Aspect ratio is defined per component */
  background: var(--bg-secondary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.shimmer-info {
  padding: var(--space-md);
  background: rgba(0, 0, 0, 0.3);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  border: 1px solid var(--glass-border);
  border-top: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.shimmer-title {
  margin-bottom: var(--space-sm);
}

.shimmer-title .shimmer-element {
  height: var(--shimmer-height-title);
  width: 80%;
}

.shimmer-meta .shimmer-element {
  height: var(--shimmer-height-meta);
  width: 60%;
}

.shimmer-element {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.05) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.05) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

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

/* Load Trigger System */
.load-trigger {
  grid-column: 1 / -1;
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.pagination-loader {
  width: 100%;
  max-width: 1600px;
}

.pagination-loader .shimmer-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-lg);
  width: 100%;
  margin: 0 auto;
}

/* Indicators */
.load-more-indicator,
.end-indicator {
  text-align: center;
  padding: var(--space-xl);
  color: var(--text-tertiary);
  font-size: var(--text-sm);
  animation: fade-in 0.3s ease;
  width: 100%;
}

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

.indicator-text,
.end-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-weight: 500;
  min-height: var(--touch-target-min);
  font-size: clamp(0.75rem, 2vw, 0.875rem);
}

.indicator-text i,
.end-text i {
  font-size: 0.875em;
  opacity: 0.7;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  color: var(--text-secondary);
  animation: empty-appear 0.5s ease;
  max-width: 500px;
  margin: 0 auto;
}

@keyframes empty-appear {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.empty-icon {
  margin-bottom: var(--space-lg);
}

.empty-state i {
  font-size: clamp(3rem, 8vw, 4rem);
  color: var(--text-tertiary);
  opacity: 0.5;
}

.empty-state h3 {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  font-weight: 600;
}

.empty-state p {
  font-size: clamp(0.875rem, 3vw, 1rem);
  color: var(--text-tertiary);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.retry-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: var(--touch-target-min);
  font-size: clamp(0.875rem, 2.5vw, 1rem);
}

.retry-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.retry-btn:active {
  transform: translateY(0);
}

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

/* Transitions */
.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.3s ease;
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

/* Responsive Breakpoints */

/* Ultra-wide screens (1600px+) */
@media (min-width: 1600px) {
  .content-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-xl);
    padding: 0;
    max-width: 1800px;
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-xl);
  }
}

/* Desktop Large (1400px - 1599px) */
@media (max-width: 1599px) and (min-width: 1400px) {
  .content-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-lg);
    padding: 0;
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-lg);
  }
}

/* Desktop Medium (1200px - 1399px) */
@media (max-width: 1399px) and (min-width: 1200px) {
  .content-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
    padding: 0;
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
  }
}

/* Desktop Small / Laptop (1024px - 1199px) */
@media (max-width: 1199px) and (min-width: 1024px) {
  .content-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
    padding: var(--space-md);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-md);
  }
}

/* Tablet Landscape (768px - 1023px) */
@media (max-width: 1023px) and (min-width: 768px) {
  .content-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    padding: 0;
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  
  :root {
    --shimmer-height-title: 18px;
    --shimmer-height-meta: 12px;
  }
  
  .shimmer-info {
    padding: var(--space-sm);
  }
  
  .empty-state {
    padding: var(--space-3xl) var(--space-md);
  }
}

/* Tablet Portrait (640px - 767px) */
@media (max-width: 767px) and (min-width: 640px) {
  .content-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    padding: var(--space-md);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }
  
  :root {
    --shimmer-height-title: 16px;
    --shimmer-height-meta: 12px;
  }
  
  .shimmer-info {
    padding: var(--space-sm);
  }
  
  .load-more-indicator,
  .end-indicator {
    padding: var(--space-lg);
  }
  
  .empty-state {
    padding: var(--space-2xl) var(--space-md);
  }
}

/* Mobile Large (480px - 639px) */
@media (max-width: 639px) and (min-width: 480px) {
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    padding: var(--space-sm);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  
  :root {
    --shimmer-height-title: 16px;
    --shimmer-height-meta: 12px;
  }
  
  .shimmer-info {
    padding: var(--space-xs);
  }
  
  .load-more-indicator,
  .end-indicator {
    padding: var(--space-md);
  }
  
  .indicator-text,
  .end-text {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.75rem;
  }
  
  .empty-state {
    padding: var(--space-xl) var(--space-sm);
  }
  
  .retry-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
  }
}

/* Mobile Medium (375px - 479px) */
@media (max-width: 479px) and (min-width: 375px) {
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    padding: var(--space-sm);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }
  
  :root {
    --shimmer-height-title: 14px;
    --shimmer-height-meta: 10px;
  }
  
  .shimmer-info {
    padding: var(--space-xs);
  }
  
  .shimmer-title {
    margin-bottom: var(--space-xs);
  }
  
  .load-more-indicator,
  .end-indicator {
    padding: var(--space-sm);
  }
  
  .indicator-text,
  .end-text {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    gap: var(--space-xs);
  }
  
  .empty-state {
    padding: var(--space-lg) var(--space-xs);
  }
}

/* Mobile Small (320px - 374px) */
@media (max-width: 374px) {
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    padding: var(--space-xs);
  }
  
  .content-view {
    padding: 1rem 0.75rem;
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }
  
  :root {
    --shimmer-height-title: 12px;
    --shimmer-height-meta: 10px;
  }
  
  .shimmer-info {
    padding: var(--space-xs);
  }
  
  .shimmer-title {
    margin-bottom: var(--space-xs);
  }
  
  .load-more-indicator,
  .end-indicator {
    padding: var(--space-xs);
  }
  
  .indicator-text,
  .end-text {
    padding: var(--space-xs);
    font-size: 0.7rem;
    gap: var(--space-xs);
  }
  
  .empty-state {
    padding: var(--space-md) var(--space-xs);
  }
  
  .retry-btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.8rem;
  }
}

/* Extra Small Mobile (< 320px) */
@media (max-width: 319px) {
  .content-grid {
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xs);
    padding: var(--space-xs);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xs);
  }
  
  .shimmer-card {
    max-width: 280px;
    margin: 0 auto;
  }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .shimmer-element {
    background-size: 400% 100%;
  }
}

/* Landscape Orientation on Mobile */
@media (max-width: 767px) and (orientation: landscape) {
  .content-grid {
    grid-template-columns: repeat(4, 1fr);
    padding: var(--space-sm);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .empty-state {
    padding: var(--space-lg) var(--space-md);
  }
  
  .load-more-indicator,
  .end-indicator {
    padding: var(--space-sm);
  }
}

/* Portrait Orientation on Tablets */
@media (min-width: 768px) and (max-width: 1023px) and (orientation: portrait) {
  .content-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .pagination-loader .shimmer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .shimmer-element {
    animation: none;
    background: rgba(255, 255, 255, 0.1);
  }
  
  .shimmer-card,
  .empty-state,
  .load-more-indicator,
  .end-indicator {
    animation: none;
  }
  
  .retry-btn:hover {
    transform: none;
  }
}

/* Dark Mode Adjustments */
@media (prefers-color-scheme: dark) {
  .shimmer-element {
    background: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.02) 0%,
      rgba(255, 255, 255, 0.05) 50%,
      rgba(255, 255, 255, 0.02) 100%
    );
  }
}

/* Print Styles */
@media print {
  .content-view {
    color-adjust: exact;
  }
  
  .shimmer-card,
  .load-trigger,
  .pagination-loader {
    display: none;
  }
}