/* ==========================================================================
   FileToolKit - Components (Dropzone, Tool Cards, Modals, Search, Previews)
   ========================================================================== */

/* Universal File Dropzone */
.dropzone-container {
  background-color: var(--bg-card);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-4);
  text-align: center;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

@media (min-width: 768px) {
  .dropzone-container {
    padding: var(--space-12) var(--space-8);
  }
}

.dropzone-container:hover {
  border-color: var(--emerald-primary);
  background-color: var(--emerald-tint);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.dropzone-container.drag-over {
  border-color: var(--emerald-primary);
  border-style: solid;
  background-color: var(--emerald-tint);
  transform: scale(1.01);
  box-shadow: var(--shadow-emerald);
}

.dropzone-icon-cluster {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.dropzone-icon-box {
  width: 54px;
  height: 54px;
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-primary);
  transition: transform var(--transition-fast);
}

.dropzone-icon-box.primary {
  width: 68px;
  height: 68px;
  background: linear-gradient(135deg, var(--emerald-primary) 0%, var(--emerald-hover) 100%);
  color: #FFFFFF;
  border: none;
  box-shadow: var(--shadow-emerald);
}

.dropzone-container:hover .dropzone-icon-box.primary {
  transform: scale(1.08);
}

.dropzone-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.dropzone-subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto var(--space-4) auto;
}

.dropzone-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Tool Card Grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-4);
}

@media (min-width: 576px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .tool-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Tool Card */
.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  position: relative;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-xs);
  height: 100%;
}

.tool-card:hover {
  border-color: var(--emerald-border);
  background-color: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.tool-card-icon {
  width: 44px;
  height: 44px;
  background-color: var(--emerald-tint);
  border: 1px solid var(--emerald-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-card-icon {
  transform: scale(1.05);
  background-color: var(--emerald-primary);
  color: #FFFFFF;
}

.tool-card-favorite-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: var(--space-1);
  border-radius: var(--radius-xs);
  transition: color var(--transition-fast);
}

.tool-card-favorite-btn:hover, .tool-card-favorite-btn.active {
  color: #F59E0B;
}

.tool-card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
  line-height: var(--line-height-tight);
}

.tool-card-desc {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  line-height: var(--line-height-normal);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--font-size-xs);
}

.tool-card-action {
  color: var(--emerald-primary);
  font-weight: var(--font-weight-semibold);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition-fast);
}

.tool-card:hover .tool-card-action {
  gap: 0.45rem;
}

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.category-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.category-card:hover {
  border-color: var(--emerald-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.category-card-icon {
  width: 52px;
  height: 52px;
  background-color: var(--emerald-tint);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--emerald-primary);
}

.category-card:hover .category-card-icon {
  background: linear-gradient(135deg, var(--emerald-primary) 0%, var(--emerald-hover) 100%);
  color: #FFFFFF;
}

.category-card-count {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--emerald-primary);
  background-color: var(--emerald-tint);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.category-card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.category-card-desc {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  flex-grow: 1;
}

.category-card-popular-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.category-card-popular-pill {
  font-size: var(--font-size-xs);
  background-color: var(--bg-muted);
  color: var(--text-secondary);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-color);
}

/* Quick Tool Chips / Pills */
.quick-tool-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.tool-chip:hover {
  background-color: var(--emerald-tint);
  color: var(--emerald-primary);
  border-color: var(--emerald-border);
  transform: translateY(-1px);
}

/* Filter Chips Bar & Horizontal Slider */
.filter-slider-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  margin: 0 auto var(--space-6) auto;
  max-width: 960px;
  width: 100%;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: var(--space-2) var(--space-2);
  margin-bottom: 0;
  width: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
  -webkit-overflow-scrolling: touch;
}

.filter-bar::-webkit-scrollbar {
  height: 4px;
}

.filter-bar::-webkit-scrollbar-track {
  background: transparent;
}

.filter-bar::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: var(--radius-full);
}

.filter-arrow-btn {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  z-index: 2;
}

.filter-arrow-btn:hover {
  background-color: var(--emerald-tint);
  border-color: var(--emerald-primary);
  color: var(--emerald-primary);
  transform: scale(1.06);
}

.filter-arrow-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.filter-arrow-prev {
  margin-right: var(--space-2);
}

.filter-arrow-next {
  margin-left: var(--space-2);
}

.filter-btn {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--emerald-border);
  color: var(--text-primary);
}

.filter-btn.active {
  background-color: var(--emerald-primary);
  color: #FFFFFF;
  border-color: var(--emerald-primary);
  box-shadow: var(--shadow-sm);
}

/* Global Search Modal Overlay */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(16, 24, 20, 0.7);
  backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-12) var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.search-modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.search-modal-box {
  width: 100%;
  max-width: 640px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translateY(-20px);
  transition: transform var(--transition-normal);
}

.search-modal-backdrop.open .search-modal-box {
  transform: translateY(0);
}

.search-modal-header {
  display: flex;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
  gap: var(--space-3);
}

.search-input-field {
  flex-grow: 1;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  background: transparent;
  outline: none;
  font-family: var(--font-family);
}

.search-modal-results {
  max-height: 420px;
  overflow-y: auto;
  padding: var(--space-3);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.search-result-item:hover, .search-result-item.selected {
  background-color: var(--emerald-tint);
}

.search-result-title {
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.search-result-category {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* Before / After Comparison Split Slider */
.split-preview-container {
  position: relative;
  width: 100%;
  max-width: 700px;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin: 0 auto;
  user-select: none;
  background: repeating-conic-gradient(#E2E8E5 0% 25%, #FFFFFF 0% 50%) 50% / 16px 16px;
}

.split-preview-after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.split-preview-after img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.split-preview-before {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  border-right: 2px solid var(--emerald-primary);
}

.split-preview-before img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: absolute;
  top: 0;
  left: 0;
}

.split-preview-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 38px;
  height: 38px;
  background-color: var(--emerald-primary);
  color: #FFFFFF;
  border: 3px solid #FFFFFF;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: ew-resize;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

/* Accordion Component */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.accordion-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.accordion-header {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
}

.accordion-header:hover {
  color: var(--emerald-primary);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  padding: 0 var(--space-5);
}

.accordion-item.open .accordion-body {
  max-height: 400px;
  padding-bottom: var(--space-5);
}

.accordion-item.open .accordion-header {
  color: var(--emerald-primary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  background-color: var(--dark-surface-elevated);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-xl);
  pointer-events: auto;
  animation: slideInUp 0.3s ease-out;
}

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