/* =========================================================
   DRAG-MOVE & ICON PREVIEW — real-icon lift styles
   ========================================================= */

/* Item being actively dragged: lifted shadow + accent border */
.file-item.dragging,
.file-item.dragging:hover,
.file-item.dragging.selected {
  background: transparent !important;
  border-color: transparent !important;
  box-shadow: none;
  z-index: 9999;
  cursor: grabbing !important;
}

.file-item.dragging .icon,
.file-item.dragging .name {
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.38));
}

/* Folder highlighted while a dragged item hovers over it */
.file-item.drop-target .icon {
  filter: drop-shadow(0 0 6px var(--accent, #5b7fff)) brightness(1.25);
}

.drag-parent-target {
  position: fixed;
  left: 16px;
  top: 68px;
  z-index: 10002;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border, #2e3247);
  border-radius: 8px;
  background: var(--surface, #1a1d27);
  color: var(--text, #e8eaf0);
  pointer-events: auto;
  user-select: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.42);
}

.drag-parent-target .up {
  color: var(--accent, #5b7fff);
  font-weight: 700;
}

.drag-parent-target .label {
  font-size: 0.82rem;
}

.drag-parent-target.active {
  border-color: var(--accent, #5b7fff);
  box-shadow: 0 0 0 2px rgba(91, 127, 255, 0.22), 0 8px 20px rgba(0, 0, 0, 0.5);
}

.crumb-drop-target.active {
  color: var(--accent, #5b7fff) !important;
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

/* ---- drop animation: rises, spins, falls into folder ---- */
/* --dx / --dy : current viewport X/Y of the item when released  */
/* --fall-x / --fall-y : viewport position of the target folder  */
@keyframes drag-rise-spin-fall {
  0% {
    transform: translate(var(--dx), var(--dy)) scale(1) rotate(0deg);
    opacity: 1;
  }

  20% {
    transform: translate(var(--dx), calc(var(--dy) - 40px)) scale(1.05) rotate(60deg);
    opacity: 1;
  }

  60% {
    transform: translate(var(--fall-x), calc(var(--fall-y) - 20px)) scale(0.5) rotate(200deg);
    opacity: 0.9;
  }

  100% {
    transform: translate(var(--fall-x), var(--fall-y)) scale(0.05) rotate(360deg);
    opacity: 0;
  }
}

.file-item.dropping {
  animation: drag-rise-spin-fall 0.45s cubic-bezier(0.4, 0, 0.8, 1) forwards;
  pointer-events: none;
}

/* ---- bounce animation on the target folder ---- */
@keyframes folder-bounce {
  0% {
    transform: translateY(0);
  }

  30% {
    transform: translateY(8px);
  }

  65% {
    transform: translateY(-4px);
  }

  85% {
    transform: translateY(2px);
  }

  100% {
    transform: translateY(0);
  }
}

.file-item.folder-bounce {
  animation: folder-bounce 0.4s ease-out forwards;
}

/* =========================================================
   EXPANDED PREVIEW TILE
   The real .file-item element scales up in place to fill the
   viewport — no separate overlay.
   ========================================================= */

/* Dimming backdrop behind the expanded tile */
.preview-backdrop {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(8, 9, 14, 0.82);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.preview-backdrop.visible {
  opacity: 1;
  pointer-events: all;
}

/* .file-item in expanded preview state */
.file-item.file-item--preview {
  background: var(--surface, #1a1d27) !important;
  border: 2px solid var(--preview-accent, var(--border, #2e3247)) !important;
  border-radius: 12px !important;
  cursor: default !important;
  user-select: text;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden;
  padding: 0 !important;
  gap: 0 !important;
  z-index: 10000;
}

.file-item.file-item--preview .icon {
  width: 100% !important;
  height: auto !important;
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex !important;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 1rem 1rem 0.75rem;
  box-sizing: border-box;
}

.file-item.file-item--preview .icon .preview-expand-outline {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(72%, 640px);
  height: min(72%, 640px);
  transform: translate(-50%, -50%);
  opacity: 0.18;
  pointer-events: none;
  z-index: 1;
  filter: drop-shadow(0 0 10px var(--preview-accent, transparent));
}

.file-item.file-item--preview .icon .preview-expand-content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-item.file-item--preview .icon .preview-expand-content--video {
  align-self: stretch;
  overflow: hidden;
}

/* Keep preview media constrained within the expanded icon */
.file-item.file-item--preview .icon .preview-media {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.file-item.file-item--preview .icon .preview-video-js {
  width: 100% !important;
  height: 100% !important;
  max-height: 100%;
  background: transparent;
}

.file-item.file-item--preview .icon .preview-video-js .vjs-tech {
  object-fit: contain;
}

.file-item.file-item--preview .icon .preview-frame {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
  background: #fff;
}

.file-item.file-item--preview .icon .preview-text {
  width: 100%;
  min-height: auto;
  flex: 1;
  align-self: stretch;
}

.file-item.file-item--preview .icon .preview-audio {
  width: min(640px, 95%);
}

.file-item.file-item--preview .icon .preview-unsupported {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 56ch;
  text-align: center;
}

/* Filename bar shown at top of expanded preview */
.preview-expand-title {
  padding: 0.7rem 3.5rem 0.7rem 1rem;
  font-size: 0.95rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}

/* Close button (×) — top-right corner */
.preview-expand-close {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 30px;
  height: 30px;
  background: rgba(20, 25, 40, 0.8);
  color: #d6deef;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
  transition: background 0.15s ease;
  flex-shrink: 0;
}

.preview-expand-close:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* Action row below the preview content */
.preview-expand-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
  padding: 0 1rem 1rem;
  border-top: 1px solid rgba(46, 50, 71, 0.9);
  background: linear-gradient(180deg, rgba(26, 29, 39, 0) 0%, rgba(26, 29, 39, 0.92) 42%);
  flex-shrink: 0;
}

.preview-expand-download,
.preview-expand-share {
  background: var(--accent, #5b7fff);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 7px 18px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: opacity 0.15s ease;
  flex-shrink: 0;
}

.preview-expand-download:hover {
  opacity: 0.85;
}

.preview-expand-share {
  background: rgba(20, 25, 40, 0.84);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  padding: 7px 14px;
}

.preview-expand-share:hover {
  opacity: 0.85;
}

@media (max-width: 700px) {
  .preview-expand-actions {
    justify-content: stretch;
    padding: 0 0.75rem 0.75rem;
  }

  .preview-expand-download,
  .preview-expand-share {
    flex: 1;
    justify-content: center;
  }
}

/* Spinner shown inside the expanded tile while content is loading */
.preview-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.preview-loading-indicator {
  position: relative;
  width: 52px;
  height: 52px;
}

.preview-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-top-color: rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  animation: preview-spin 0.7s linear infinite;
}

.preview-loading-indicator .preview-loading-spinner {
  width: 100%;
  height: 100%;
}

.preview-loading-percent {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
}

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

.move-modal {
  width: min(92vw, 760px);
  max-height: min(86vh, 760px);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.move-tree {
  border: 1px solid var(--border, #2e3247);
  border-radius: 10px;
  padding: 0.55rem;
  max-height: min(58vh, 480px);
  overflow: auto;
  background: var(--bg, #0f1117);
}

.move-node {
  margin-left: 0.25rem;
}

.move-node-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0.14rem 0;
}

.move-toggle {
  width: 26px;
  min-width: 26px;
  height: 26px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.move-node-label {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 28px;
  width: auto;
  padding: 0.2rem 0.5rem;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text, #e8eaf0);
}

.move-node-label:hover {
  border-color: var(--border, #2e3247);
  background: rgba(255, 255, 255, 0.03);
}

.move-node-label.selected {
  border-color: var(--accent, #5b7fff);
  background: rgba(91, 127, 255, 0.12);
}

.move-children {
  margin-left: 1.2rem;
  border-left: 1px dashed var(--border, #2e3247);
  padding-left: 0.5rem;
}

.move-empty {
  color: var(--text-muted, #7880a0);
  font-size: 0.85rem;
  margin: 0.2rem 0 0.4rem 0.2rem;
}