/**
 * CDT Grid Filter - Styles
 *
 * Clean, button-based filter UI inspired by arknights-recruitment-tool
 */

/* ============================================
   CSS Custom Properties (Theming)
   ============================================ */
:root {
  --cgf-primary-color: #0073aa;
  --cgf-selected-color: #00a0d2;
  --cgf-border-color: #ddd;
  --cgf-hover-border-color: #0073aa;
  --cgf-text-color: #333;
  --cgf-bg-color: #fff;
  --cgf-gap: 10px;
  --cgf-columns: 5;
  --cgf-item-width: 100px;
}

/* Arknights Theme */
[data-theme="arknights"] {
  --cgf-primary-color: #0073aa;
  --cgf-selected-color: #00a0d2;
}

/* Pokemon Theme (future) */
[data-theme="pokemon"] {
  --cgf-primary-color: #ffcb05;
  --cgf-selected-color: #3d7dca;
}

/* ============================================
   Container
   ============================================ */
.cgf-container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 20px 0;
}

/* ============================================
   Filter UI
   ============================================ */
.cgf-filters {
  margin-bottom: 30px;
}

.cgf-filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.cgf-reset-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 2px solid #dc3545;
  border-radius: 4px;
  background-color: #fff;
  color: #dc3545;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.cgf-reset-btn:hover {
  background-color: #dc3545;
  color: #fff;
}

.cgf-reset-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: #ccc;
  color: #999;
}

.cgf-reset-btn:disabled:hover {
  background-color: #fff;
  color: #999;
}

.cgf-filter-group {
  margin-bottom: 20px;
}

.cgf-filter-group h4 {
  margin: 0 0 10px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--cgf-text-color);
}

.cgf-filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ============================================
   Filter Buttons
   ============================================ */
.cgf-filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: 2px solid var(--cgf-border-color);
  border-radius: 4px;
  background-color: var(--cgf-bg-color);
  color: var(--cgf-text-color);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  user-select: none;
}

.cgf-filter-btn:hover {
  border-color: var(--cgf-hover-border-color);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cgf-filter-btn.selected {
  background-color: var(--cgf-primary-color);
  border-color: var(--cgf-primary-color);
  color: #fff;
}

.cgf-filter-btn.selected:hover {
  background-color: var(--cgf-selected-color);
  border-color: var(--cgf-selected-color);
}

/* Filter button with icon */
.cgf-filter-btn .filter-icon {
  width: 20px;
  height: 20px;
  margin-right: 6px;
  object-fit: contain;
}

/* "All" button styling */
.cgf-filter-btn[data-value="all"] {
  background-color: #f0f0f0;
  border-color: #ccc;
}

.cgf-filter-btn[data-value="all"].selected {
  background-color: #666;
  border-color: #666;
  color: #fff;
}

/* ============================================
   Grid Layout
   ============================================ */
.cgf-grid {
  display: grid;
  grid-template-columns: repeat(var(--cgf-columns), var(--cgf-item-width));
  gap: var(--cgf-gap);
  justify-content: start;
}

/* Grid Item */
.cgf-item {
  display: block;
  text-align: center;
  transition: opacity 0.2s ease;
}

.cgf-item[style*="display: none"] {
  display: none !important;
}

.cgf-item img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.cgf-item a {
  text-decoration: none;
  color: var(--cgf-text-color);
}

.cgf-item a:hover {
  text-decoration: underline;
}

/* Styled Grid Item (with background color) */
.cgf-item-styled {
  padding: 8px;
  border-radius: 4px;
}

.cgf-item-styled .cgf-item-name {
  color: var(--cgf-text-color);
  font-weight: 600;
  margin-top: 4px;
  text-shadow:
    -1px -1px 0 var(--cgf-border-color),
     1px -1px 0 var(--cgf-border-color),
    -1px  1px 0 var(--cgf-border-color),
     1px  1px 0 var(--cgf-border-color);
}

/* ============================================
   Result Count
   ============================================ */
.cgf-result-count {
  margin-top: 20px;
  padding: 10px 15px;
  background-color: #f5f5f5;
  border-left: 4px solid var(--cgf-primary-color);
  font-size: 14px;
  color: #666;
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablets */
@media (max-width: 768px) {
  .cgf-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }

  .cgf-filter-btn {
    padding: 6px 12px;
    font-size: 13px;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .cgf-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  }

  .cgf-filter-options {
    gap: 6px;
  }

  .cgf-filter-btn {
    padding: 5px 10px;
    font-size: 12px;
  }

  .cgf-filter-group h4 {
    font-size: 14px;
  }
}

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

/* Hidden (JavaScript control) */
.cgf-hidden {
  display: none !important;
}

/* Loading state */
.cgf-loading {
  opacity: 0.5;
  pointer-events: none;
}

/* Empty state */
.cgf-empty-message {
  padding: 40px 20px;
  text-align: center;
  color: #999;
  font-size: 16px;
}

/* ============================================
   Animation (optional)
   ============================================ */
.cgf-item {
  animation: cgfFadeIn 0.3s ease;
}

@keyframes cgfFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Disable animation for performance on large grids */
.cgf-grid.cgf-no-animation .cgf-item {
  animation: none;
}