/* Components - Reusable UI elements */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  min-height: 48px; /* Kid-friendly touch target */
  min-width: 48px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.25rem;
  min-height: 60px;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  min-height: 36px;
}

/* Cards */
.card {
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card-header {
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.card-body {
  color: var(--color-text-light);
}

/* Game Card (specialized card for games) */
.game-card {
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.game-card-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.game-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.game-card-description {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.game-card-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background-color: var(--color-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  font-weight: 600;
}

/* Category Card */
.category-card {
  cursor: pointer;
  text-align: center;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.category-card-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-md);
}

.category-card-title {
  font-size: 1.5rem;
  font-weight: 700;
}

/* Navigation */
.nav {
  background-color: var(--color-bg-card);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-bg);
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

/* Search box */
.search-box {
  position: relative;
  margin-bottom: var(--spacing-xl);
}

.search-input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg-card);
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-text-lighter);
}

/* Filters */
.filter-bar {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  align-items: center;
}

.filter-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.filter-label {
  font-weight: 600;
  color: var(--color-text-light);
}

.filter-select {
  padding: 0.5rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-card);
  font-size: 1rem;
  cursor: pointer;
  min-height: 48px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-2xl);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-light);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-sm);
    font-size: 0.875rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-select {
    width: 100%;
  }
}