/**
 * ==========================================================================
 * File Manager Component — filebrowser.org-inspired layout
 * Sticky toolbar · breadcrumb · sortable list/grid · drag-drop · viewer modal
 * ==========================================================================
 */

/* ── Shell ─────────────────────────────────────────────────────────────── */
.fm-shell {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 6rem);
}

/* ── Toolbar ────────────────────────────────────────────────────────────── */
.fm-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--color-border, rgba(255,255,255,0.07));
  flex-wrap: wrap;
}
.fm-toolbar-left  { display: flex; align-items: center; gap: 0.5rem; flex: 1; min-width: 0; }
.fm-toolbar-right { display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }

.fm-toolbar-btn {
  font-size: 0.77rem !important;
  padding: 0.28rem 0.6rem !important;
  white-space: nowrap;
}
.fm-toolbar-btn.active {
  background: rgba(99,102,241,0.16) !important;
  color: var(--color-accent, #6366f1) !important;
}
.fm-toolbar-btn-disabled {
  font-size: 0.77rem;
  padding: 0.28rem 0.6rem;
  color: var(--color-text-soft, #6b7280);
  cursor: default;
}
.fm-sel-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-accent, #6366f1);
  padding: 0.2rem 0.5rem;
  background: rgba(99,102,241,0.12);
  border-radius: 0.25rem;
  white-space: nowrap;
}

/* ── Search ─────────────────────────────────────────────────────────────── */
.fm-search {
  background: var(--input-bg, rgba(255,255,255,0.04));
  border: 1px solid var(--color-border, rgba(255,255,255,0.1));
  border-radius: 0.375rem;
  color: var(--color-text, #e5e7eb);
  font-size: 0.8125rem;
  padding: 0.28rem 0.65rem;
  width: 13rem;
  max-width: 100%;
  transition: border-color 0.15s;
}
.fm-search:focus { outline: none; border-color: var(--color-accent, #6366f1); }

/* ── Breadcrumb ─────────────────────────────────────────────────────────── */
.fm-breadcrumb {
  display: flex;
  align-items: center;
  padding: 0.3rem 0.75rem;
  border-bottom: 1px solid var(--color-border, rgba(255,255,255,0.06));
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  overflow-x: auto;
  scrollbar-width: none;
  flex-shrink: 0;
}
.fm-breadcrumb::-webkit-scrollbar { display: none; }

.fm-crumb {
  background: none;
  border: none;
  color: var(--color-accent, #6366f1);
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  padding: 0.2rem 0.3rem;
  border-radius: 0.2rem;
  white-space: nowrap;
  transition: background 0.12s;
}
.fm-crumb:hover { background: rgba(99,102,241,0.1); }
.fm-crumb-sep { color: var(--color-text-soft, #6b7280); padding: 0 0.1rem; user-select: none; }

/* ── Clipboard banner ───────────────────────────────────────────────────── */
.fm-clipboard-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.32rem 0.75rem;
  background: rgba(99,102,241,0.07);
  border-bottom: 1px solid rgba(99,102,241,0.18);
  font-size: 0.78rem;
  color: var(--color-accent, #6366f1);
  flex-wrap: wrap;
}

/* ── Upload progress ────────────────────────────────────────────────────── */
.fm-upload-progress {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--color-border, rgba(255,255,255,0.06));
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  font-size: 0.78rem;
  color: var(--color-text-soft, #9ca3af);
}
.fm-upload-label { cursor: pointer !important; }
.fm-upload-progress-bar-track {
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  height: 3px;
  overflow: hidden;
}
.fm-upload-progress-bar-fill {
  background: var(--color-accent, #6366f1);
  height: 100%;
  border-radius: 999px;
  transition: width 0.2s;
}

/* ── Listing area ───────────────────────────────────────────────────────── */
.fm-listing {
  flex: 1;
  overflow-y: auto;
  position: relative;
}
.fm-listing.drag-over {
  outline: 2px dashed var(--color-accent, #6366f1);
  outline-offset: -3px;
  background: rgba(99,102,241,0.05);
}

/* ── List header ────────────────────────────────────────────────────────── */
.fm-list-header {
  display: grid;
  grid-template-columns: 2.25rem 1.75rem 1fr 6.5rem 10rem 7.5rem;
  align-items: center;
  padding: 0 0.25rem;
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--surface-bg, rgba(12,12,20,0.96));
  border-bottom: 1px solid var(--color-border, rgba(255,255,255,0.07));
  backdrop-filter: blur(6px);
}
.fm-col-hdr {
  background: none;
  border: none;
  color: var(--color-text-soft, #9ca3af);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.48rem 0.25rem;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  user-select: none;
  white-space: nowrap;
  transition: color 0.12s;
}
.fm-col-hdr:hover { color: var(--color-text, #e5e7eb); }
.fm-col-hdr.active { color: var(--color-accent, #6366f1); }
.fm-col-hdr-static {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-soft, #9ca3af);
  padding: 0.48rem 0.25rem;
  text-align: right;
}
.fm-sort-icon { font-size: 0.65rem; opacity: 0.45; }
.fm-sort-icon.active { opacity: 1; color: var(--color-accent, #6366f1); }

/* ── Section label ──────────────────────────────────────────────────────── */
.fm-section-hdr {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-soft, #6b7280);
  padding: 0.45rem 1rem 0.2rem;
}

/* ── List item ──────────────────────────────────────────────────────────── */
.fm-item {
  display: grid;
  grid-template-columns: 2.25rem 1.75rem 1fr 6.5rem 10rem 7.5rem;
  align-items: center;
  padding: 0 0.25rem;
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.025);
  user-select: none;
  transition: background 0.1s;
}
.fm-item:hover    { background: rgba(255,255,255,0.04); }
.fm-item.selected { background: rgba(99,102,241,0.1); }
.fm-item.selected:hover { background: rgba(99,102,241,0.14); }

.fm-item-check {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.42rem 0;
}
.fm-check {
  accent-color: var(--color-accent, #6366f1);
  width: 0.875rem;
  height: 0.875rem;
  cursor: pointer;
}
.fm-item-icon  { font-size: 1rem; line-height: 1; padding: 0.42rem 0; }
.fm-item-name  {
  font-size: 0.84rem;
  color: var(--color-text, #e5e7eb);
  padding: 0.5rem 0.25rem 0.5rem 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fm-item:hover .fm-item-name { color: var(--color-accent, #6366f1); }
.fm-item-size  { font-size: 0.76rem; color: var(--color-text-soft, #9ca3af); padding: 0.5rem 0.5rem 0.5rem 0; text-align: right; }
.fm-item-date  { font-size: 0.76rem; color: var(--color-text-soft, #9ca3af); padding: 0.5rem 0.25rem; white-space: nowrap; }
.fm-item-actions {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.25rem 0;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity 0.1s;
}
.fm-item:hover .fm-item-actions,
.fm-item.selected .fm-item-actions { opacity: 1; }

.fm-item-btn {
  background: none;
  border: 1px solid transparent;
  color: var(--color-text-soft, #9ca3af);
  cursor: pointer;
  border-radius: 0.2rem;
  padding: 0.15rem 0.4rem;
  font-size: 0.7rem;
  line-height: 1.3;
  white-space: nowrap;
  transition: all 0.12s;
}
.fm-item-btn:hover {
  background: rgba(255,255,255,0.07);
  color: var(--color-text, #e5e7eb);
  border-color: var(--color-border, rgba(255,255,255,0.1));
}
.fm-item-btn.danger:hover {
  background: rgba(239,68,68,0.1);
  color: #ef4444;
  border-color: rgba(239,68,68,0.22);
}
.fm-item-badge {
  font-size: 0.65rem;
  padding: 0.1rem 0.35rem;
  border-radius: 0.2rem;
  background: rgba(255,255,255,0.05);
  color: var(--color-text-soft, #9ca3af);
  white-space: nowrap;
}

/* ── Grid view ──────────────────────────────────────────────────────────── */
.fm-listing.grid-view .fm-list-header { display: none; }
.fm-listing.grid-view .fm-section-hdr { padding: 0.55rem 0.75rem 0.2rem; }

.fm-section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: 0.45rem;
  padding: 0.5rem 0.75rem;
}
.fm-listing.grid-view .fm-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0.7rem 0.4rem 0.45rem;
  border-radius: 0.5rem;
  border: 1px solid var(--color-border, rgba(255,255,255,0.06));
  grid-template-columns: unset;
}
.fm-listing.grid-view .fm-item-icon   { font-size: 2rem; padding: 0; margin-bottom: 0.3rem; }
.fm-listing.grid-view .fm-item-name   { font-size: 0.74rem; padding: 0; width: 100%; overflow: hidden; text-overflow: ellipsis; }
.fm-listing.grid-view .fm-item-size,
.fm-listing.grid-view .fm-item-date   { display: none; }
.fm-listing.grid-view .fm-item-check  { display: none; }
.fm-listing.grid-view .fm-item-actions { opacity: 1; flex-direction: row; gap: 0.2rem; margin-top: 0.3rem; }

/* ── Empty / init state ─────────────────────────────────────────────────── */
.fm-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  color: var(--color-text-soft, #6b7280);
  font-size: 0.88rem;
  gap: 0.5rem;
  text-align: center;
}

/* ── File viewer modal ──────────────────────────────────────────────────── */
.fm-viewer {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.72);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.fm-viewer-inner {
  background: var(--panel-bg, #12121e);
  border: 1px solid var(--color-border, rgba(255,255,255,0.1));
  border-radius: 0.75rem;
  width: 100%;
  max-width: 74rem;
  max-height: 88vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}
.fm-viewer-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--color-border, rgba(255,255,255,0.07));
  flex-shrink: 0;
}
.fm-viewer-path {
  flex: 1;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--color-text-soft, #9ca3af);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fm-file-content {
  flex: 1;
  overflow: auto;
  background: rgba(0,0,0,0.22);
  color: var(--color-text, #e5e7eb);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.77rem;
  line-height: 1.7;
  padding: 1rem 1.5rem;
  white-space: pre;
  word-break: break-all;
  margin: 0;
  max-height: calc(88vh - 3.5rem);
}