/* Bulk Upload Modal */

/* ── Overlay & Dialog ──────────────────────────────────────── */

.bulk-upload-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: var(--modal-backdrop-bg);
  backdrop-filter: var(--modal-backdrop-blur);
  -webkit-backdrop-filter: var(--modal-backdrop-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: modal-fade-in 0.2s ease-out;
}

.bulk-upload-modal {
  width: 90vw;
  max-width: 820px;
  max-height: 95vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: modal-zoom-in 0.2s ease-out;
}

@keyframes modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modal-zoom-in {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.bulk-upload-modal .modal-header {
  align-items: flex-start;
}


.bulk-upload-modal-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.bulk-upload-shell {
  display: flex;
  flex-direction: column;
  padding: 12px;
  gap: 16px;
}

.bulk-upload-shell .form-group input.button::placeholder {
  color: var(--muted);
}

.bulk-upload-modal-body::-webkit-scrollbar {
  width: 10px;
}

.bulk-upload-modal-body::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.bulk-upload-modal-body::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--border) 85%, black);
}

.bulk-upload-modal-body::-webkit-scrollbar-track {
  background: transparent;
}

/* ── Collection setup ───────────────────────────────────────── */

.bulk-upload-collection-setup {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  flex-shrink: 0;
}


.bulk-upload-collection-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.bulk-upload-control-group {
  flex: 1;
  min-width: 160px;
}

.bulk-upload-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.bulk-upload-input::placeholder {
  color: var(--muted);
}


/* ── Content area (tree + main panel) ──────────────────────── */

.bulk-upload-content-area {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  min-height: min-content;
  color: var(--muted);
}

.bulk-upload-tree-panel {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  order: 2;
  flex-shrink: 1;
  max-height: 700px;
  overflow-y: auto;
  overflow-x: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 0 6px;
  margin: 0;
  background: var(--surface);
}

.bulk-upload-tree-panel::-webkit-scrollbar {
  width: 10px;
}

.bulk-upload-tree-panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

.bulk-upload-tree-panel::-webkit-scrollbar-thumb:hover {
  background: color-mix(in oklab, var(--border) 85%, black);
}

.bulk-upload-tree-panel::-webkit-scrollbar-track {
  background: transparent;
}

.bulk-upload-tree-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  color: var(--text);
  padding: 0 6px;
  margin-left: 8px;
  white-space: nowrap;
}


.bulk-upload-tree-label svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--file-item-active-text);
}

.bulk-upload-main-panel {
  order: 1;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scrollbar-width: thin;
  border-radius: var(--radius-sm);
}

/* ── Folder tree ───────────────────────────────────────────── */

.bulk-upload-tree-item {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  font-size: 13px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  cursor: default;
}

.bulk-upload-tree-item.depth-0[data-node-path] {
  cursor: pointer;
  border-radius: 4px;
  margin: 0 4px;
}

.bulk-upload-tree-item-chevron,
.bulk-upload-tree-item-spacer {
  width: 10px;
  flex-shrink: 0;
}

.bulk-upload-tree-item-chevron {
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  transform-origin: center center;
  transition: transform 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.bulk-upload-tree-item-chevron.open {
  transform: rotate(45deg) translateY(-1px);
}

.bulk-upload-tree-item:hover .bulk-upload-tree-item-chevron {
  border-right-color: var(--text);
  border-bottom-color: var(--text);
}

/* Custom folder buttons (selectable, collapsible) */
.bulk-upload-tree-folder {
  display: flex;
  align-items: center;
  gap: 5px;
  width: calc(100% - 8px);
  min-width: 0;
  padding: 4px 8px;
  margin: 1px 4px;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-align: left;
  transition: background 0.1s;
}

.bulk-upload-tree-folder:hover {
  background: var(--file-item-hover);
}

.bulk-upload-tree-folder.selected {
  background: var(--file-item-active);
  color: var(--file-item-active-text);
}

.bulk-upload-tree-folder.selected .bulk-upload-tree-icon {
  color: var(--file-item-active-text);
}

.bulk-upload-tree-folder.selected .bulk-upload-tree-chevron {
  border-right-color: var(--file-item-active-text);
  border-bottom-color: var(--file-item-active-text);
}

/* Chevron arrow (same as .research-details-summary::before) */
.bulk-upload-tree-chevron {
  content: '';
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  transform-origin: center center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.bulk-upload-tree-folder:hover .bulk-upload-tree-chevron {
  border-right-color: var(--text);
  border-bottom-color: var(--text);
}

.bulk-upload-tree-chevron.open {
  transform: rotate(45deg);
}


.bulk-upload-tree-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
}


.bulk-upload-tree-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

.bulk-upload-tree-more {
  color: var(--muted);
  font-size: 14px;
}

/* ── Drop zone ──────────────────────────────────────────────── */

.bulk-upload-dropzone {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  flex-shrink: 0;
  min-height: 72px;
  text-align: left;
  border-radius: var(--radius-sm);
}

.bulk-upload-dropzone.has-files .drop-zone-hint {
  display: none;
}

.bulk-upload-dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.bulk-upload-dropzone:hover {
  background: var(--file-item-active);
}

/* ── Overall progress ───────────────────────────────────────── */

.bulk-upload-progress {
  display: none;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

.bulk-upload-progress.active {
  display: flex;
}

.bulk-upload-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.bulk-upload-progress-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.bulk-upload-progress-stats {
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.bulk-upload-progress-bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.bulk-upload-progress-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--file-item-active-text);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.bulk-upload-progress-bar-fill.complete {
  background: var(--success);
}

.bulk-upload-progress-bar-fill.has-errors {
  background: var(--warning);
}

/* ── File queue ─────────────────────────────────────────────── */

.bulk-upload-queue {
  display: none;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.bulk-upload-queue.active {
  display: flex;
}

.bulk-upload-queue-header {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  flex-shrink: 0;
  gap: 12px;
  background: var(--surface);
}

.bulk-upload-queue-col-name   { flex: 1; }
.bulk-upload-queue-col-size   { width: 80px; text-align: right; }
.bulk-upload-queue-col-status { width: 140px; text-align: center; }
.bulk-upload-queue-col-action { width: 36px; }

.bulk-upload-queue-list {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
}

/* ── Queue items ────────────────────────────────────────────── */

.bulk-upload-queue-item {
  display: flex;
  align-items: center;
  padding: 8px 14px;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  transition: background 0.15s ease;
}

.bulk-upload-queue-item:last-child {
  border-bottom: none;
}

.bulk-upload-queue-item:hover {
  background: var(--file-item-hover);
}

.bulk-upload-queue-item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.bulk-upload-queue-item-size {
  width: 80px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--muted);
  flex-shrink: 0;
}

.bulk-upload-queue-item-status {
  width: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bulk-upload-queue-item-remove {
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bulk-upload-queue-item-remove button {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background 0.15s ease, color 0.15s ease;
  padding: 0;
}

.bulk-upload-queue-item-remove button:hover {
  background: var(--state-danger-soft);
  color: var(--danger);
}

.bulk-upload-queue-item.is-uploading {
  background: var(--file-item-hover);
}

/* Status badges */

.bulk-upload-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 10px;
}

.bulk-upload-status-badge.pending {
  color: var(--muted);
  background: var(--border);
}

.bulk-upload-status-badge.uploading {
  color: var(--file-item-active-text);
  background: var(--file-item-hover);
}

.bulk-upload-status-badge.done {
  color: var(--success);
  background: rgba(34, 197, 94, 0.1);
}

.bulk-upload-status-badge.processing {
  color: var(--file-item-active-text);
  background: var(--file-item-hover);
}

.bulk-upload-status-badge.ready {
  color: var(--success);
  background: rgba(34, 197, 94, 0.1);
}

.bulk-upload-status-badge.error {
  color: var(--danger);
  background: var(--state-danger-soft);
}

/* Uploading spinner */

.bulk-upload-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid var(--file-item-hover);
  border-top-color: var(--file-item-active-text);
  border-radius: 50%;
  animation: bulk-upload-spin 0.7s linear infinite;
}

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

/* Shimmer animation on file icon during upload/processing */

.bulk-upload-queue-item.is-uploading .bulk-upload-status-badge svg,
.bulk-upload-queue-item.is-uploading .bulk-upload-spinner {
  animation: file-shimmer 1.2s ease-in-out infinite;
}

@keyframes file-shimmer {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ── Action buttons (inherits .button from components.css) ──── */

.bulk-upload-modal .modal-footer .button svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.bulk-upload-modal .modal-footer .button.active {
  border: none;
  box-shadow: none;
  outline: none;
}

.bulk-upload-modal .modal-footer .button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

.bulk-upload-modal .modal-footer .button.danger {
  color: var(--danger);
}

.bulk-upload-modal .modal-footer .button.danger:hover {
  background: var(--state-danger-soft);
}

.modal-footer-spacer {
  flex: 1;
}

/* ── Empty state ────────────────────────────────────────────── */

.bulk-upload-queue-empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 640px) {
  .bulk-upload-shell {
    padding: 20px 16px 16px;
  }

  .bulk-upload-collection-setup {
    flex-direction: column;
    align-items: stretch;
  }

  .bulk-upload-cover-picker {
    flex-direction: row;
    gap: 10px;
  }

  .bulk-upload-cover-preview {
    width: 56px;
    height: 56px;
  }

  .bulk-upload-control-group {
    min-width: 100%;
  }

  .bulk-upload-tree-panel {
    display: none;
  }

  .bulk-upload-dropzone {
    padding: 28px 16px;
  }

  .bulk-upload-queue-col-size {
    display: none;
  }

  .bulk-upload-queue-item-size {
    display: none;
  }
}