/* ============================================
   Merge PDF Tool - combine multiple PDFs into one
   ============================================ */

.mergepdf-single-card {
  padding: var(--mk-space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-lg);
}

.mergepdf-upload-area {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  padding: var(--mk-space-2xl);
  background: var(--mk-bg);
  border: 2px dashed var(--mk-border);
  border-radius: var(--mk-radius-md);
  text-align: center;
  transition: all var(--mk-transition-base);
  cursor: pointer;
}

.mergepdf-upload-area:hover,
.mergepdf-upload-area.dragover {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
}

.mergepdf-upload-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--mk-space-md);
}

.mergepdf-upload-icon {
  font-size: 3rem;
  opacity: 0.5;
}

.mergepdf-upload-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--mk-text-main);
  margin: 0;
}

.mergepdf-upload-subtitle {
  font-size: 0.875rem;
  color: var(--mk-text-muted);
  margin: 0;
}

.mergepdf-converter-area {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-2xl);
}

.mergepdf-list {
  display: flex;
  flex-direction: column;
  gap: var(--mk-space-sm);
}

.mergepdf-item {
  display: flex;
  align-items: center;
  gap: var(--mk-space-md);
  padding: var(--mk-space-md) var(--mk-space-lg);
  background: var(--mk-bg);
  border: 1px solid var(--mk-border);
  border-radius: var(--mk-radius-md);
  cursor: grab;
  transition: all var(--mk-transition-fast);
  contain: layout;
  touch-action: none;
}

.mergepdf-item:active {
  cursor: grabbing;
}

.mergepdf-item.mergepdf-dragging {
  opacity: 0.5;
}

.mergepdf-drop-placeholder {
  min-height: 52px;
  margin: 2px 0;
  border: 2px dashed var(--mk-primary);
  border-radius: var(--mk-radius-md);
  background: var(--mk-primary-light);
  opacity: 0.7;
}

.mergepdf-ghost {
  opacity: 0.95;
  border-radius: var(--mk-radius-md);
}

.mergepdf-item-drag {
  color: var(--mk-text-muted);
  font-size: 1rem;
  user-select: none;
  cursor: grab;
}

.mergepdf-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15em;
}

.mergepdf-item-name {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--mk-text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mergepdf-item-meta {
  font-size: 0.8125rem;
  color: var(--mk-text-muted);
}

.mergepdf-item-remove {
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  border-radius: var(--mk-radius-sm);
  background: transparent;
  color: var(--mk-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  line-height: 1;
  transition: all var(--mk-transition-fast);
}

.mergepdf-item-remove:hover {
  background: rgba(200, 50, 50, 0.15);
  color: #c83232;
}

.mergepdf-add-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--mk-space-xl);
  background: var(--mk-bg);
  border: 2px dashed var(--mk-border);
  border-radius: var(--mk-radius-md);
  cursor: pointer;
  transition: all var(--mk-transition-base);
}

.mergepdf-add-card:hover,
.mergepdf-add-card:focus {
  border-color: var(--mk-primary);
  background: var(--mk-primary-light);
  outline: none;
}

.mergepdf-add-content {
  display: flex;
  align-items: center;
  justify-content: center;
}

.mergepdf-add-icon {
  font-size: 2rem;
  font-weight: 300;
  color: var(--mk-text-muted);
  line-height: 1;
}

.mergepdf-add-card:hover .mergepdf-add-icon,
.mergepdf-add-card:focus .mergepdf-add-icon {
  color: var(--mk-primary);
}

.mergepdf-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mk-space-md);
  padding-top: var(--mk-space-md);
}

.mergepdf-actions .mk-btn {
  width: auto;
}

.mergepdf-actions .mk-btn svg {
  margin-right: 0.35rem;
  vertical-align: -0.2em;
}

.mergepdf-spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid var(--mk-border);
  border-top-color: var(--mk-primary);
  border-radius: 50%;
  animation: mergepdf-spin 0.8s linear infinite;
  vertical-align: -0.2em;
  margin-right: 0.35rem;
}

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