/**
 * 💀 SKELETON LOADING SYSTEM
 * Skeleton screens modernos para melhor UX durante carregamentos
 */

/**
 * Base Skeleton Styles
 */
.skeleton {
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 0%,
    var(--color-gray-300) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-base);
}

[data-theme="dark"] .skeleton {
  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%
  );
}

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

/* Skeleton Variants */
.skeleton--text {
  height: 1em;
  border-radius: var(--radius-sm);
  width: 100%;
}

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

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

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

.skeleton--circle {
  border-radius: var(--radius-full);
  aspect-ratio: 1;
}

.skeleton--avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
}

.skeleton--avatar-sm {
  width: 32px;
  height: 32px;
}

.skeleton--avatar-lg {
  width: 64px;
  height: 64px;
}

.skeleton--avatar-xl {
  width: 96px;
  height: 96px;
}

.skeleton--button {
  height: 40px;
  width: 120px;
  border-radius: var(--radius-lg);
}

.skeleton--card {
  height: 200px;
  border-radius: var(--radius-xl);
}

.skeleton--image {
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  border-radius: var(--radius-lg);
}

.skeleton--input {
  height: 44px;
  border-radius: var(--radius-md);
}

/* Wave Animation Variant */
.skeleton--wave {
  animation: skeletonWave 1.5s ease-in-out infinite;
  background: 
    linear-gradient(
      90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.3) 50%,
      transparent 100%
    ),
    var(--color-gray-200);
  background-size: 200% 100%, 100% 100%;
  background-position: 200% 0, 0 0;
  background-repeat: no-repeat;
}

[data-theme="dark"] .skeleton--wave {
  background: 
    linear-gradient(
      90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.1) 50%,
      transparent 100%
    ),
    rgba(255, 255, 255, 0.05);
}

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

/* Pulse Animation Variant */
.skeleton--pulse {
  animation: skeletonPulse 1.5s ease-in-out infinite;
}

@keyframes skeletonPulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Complex Skeleton Layouts */

/* Pet Display Skeleton */
.skeleton-pet-display {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-6);
}

.skeleton-pet-display__character {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  border-radius: var(--radius-full);
}

.skeleton-pet-display__stats {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
}

.skeleton-pet-display__stat {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-lg);
}

/* Stats Panel Skeleton */
.skeleton-stats-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  padding: var(--space-4);
}

.skeleton-stats-panel__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-stats-panel__label {
  height: 14px;
  width: 60%;
}

.skeleton-stats-panel__bar {
  height: 24px;
  border-radius: var(--radius-full);
}

/* Action Buttons Skeleton */
.skeleton-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding: var(--space-4);
}

.skeleton-actions__button {
  flex: 1;
  min-width: 120px;
  height: 48px;
  border-radius: var(--radius-xl);
}

/* Shop Items Skeleton */
.skeleton-shop {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-4);
  padding: var(--space-4);
}

.skeleton-shop__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-xl);
  background: var(--color-bg-secondary);
}

.skeleton-shop__image {
  width: 100%;
  height: 100px;
  border-radius: var(--radius-lg);
}

.skeleton-shop__title {
  height: 16px;
}

.skeleton-shop__price {
  height: 20px;
  width: 60%;
}

.skeleton-shop__button {
  height: 36px;
  border-radius: var(--radius-lg);
}

/* Mini Games Skeleton */
.skeleton-minigames {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  padding: var(--space-6);
}

.skeleton-minigame {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-2xl);
  background: var(--color-bg-secondary);
}

.skeleton-minigame__image {
  width: 100%;
  height: 160px;
  border-radius: var(--radius-xl);
}

.skeleton-minigame__title {
  height: 24px;
  width: 70%;
}

.skeleton-minigame__description {
  height: 14px;
  width: 100%;
}

.skeleton-minigame__stats {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.skeleton-minigame__stat {
  flex: 1;
  height: 40px;
  border-radius: var(--radius-md);
}

.skeleton-minigame__button {
  height: 44px;
  border-radius: var(--radius-xl);
  margin-top: var(--space-2);
}

/* Notifications Skeleton */
.skeleton-notifications {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
}

.skeleton-notification {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
}

.skeleton-notification__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

.skeleton-notification__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-notification__title {
  height: 16px;
  width: 70%;
}

.skeleton-notification__message {
  height: 14px;
  width: 100%;
}

.skeleton-notification__time {
  height: 12px;
  width: 40%;
}

/* Achievements Skeleton */
.skeleton-achievements {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
  padding: var(--space-4);
}

.skeleton-achievement {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  background: var(--color-bg-secondary);
}

.skeleton-achievement__badge {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
}

.skeleton-achievement__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-achievement__title {
  height: 18px;
  width: 80%;
}

.skeleton-achievement__description {
  height: 14px;
  width: 100%;
}

.skeleton-achievement__progress {
  height: 8px;
  width: 100%;
  border-radius: var(--radius-full);
  margin-top: var(--space-2);
}

/* List Skeleton */
.skeleton-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.skeleton-list__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
}

.skeleton-list__item-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
}

.skeleton-list__item-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-list__item-title {
  height: 14px;
  width: 60%;
}

.skeleton-list__item-subtitle {
  height: 12px;
  width: 40%;
}

/* Table Skeleton */
.skeleton-table {
  width: 100%;
  border-collapse: collapse;
}

.skeleton-table__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-3);
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-bg-tertiary);
}

.skeleton-table__cell {
  height: 16px;
}

/* Header Skeleton */
.skeleton-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  gap: var(--space-4);
}

.skeleton-header__title {
  height: 32px;
  width: 200px;
}

.skeleton-header__actions {
  display: flex;
  gap: var(--space-3);
}

.skeleton-header__action {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

/* Responsive */
@media (max-width: 768px) {
  .skeleton-shop,
  .skeleton-minigames,
  .skeleton-achievements {
    grid-template-columns: 1fr;
  }
  
  .skeleton-stats-panel {
    grid-template-columns: 1fr;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .skeleton,
  .skeleton--wave,
  .skeleton--pulse {
    animation: none;
    opacity: 0.5;
  }
}

/* Utility Classes */
.skeleton--rounded { border-radius: var(--radius-lg); }
.skeleton--rounded-full { border-radius: var(--radius-full); }
.skeleton--rounded-xl { border-radius: var(--radius-xl); }
.skeleton--rounded-2xl { border-radius: var(--radius-2xl); }