/* Classifier layout — tokens from shared/base.css */

/* .empty-state / .empty-state__inner / .welcome-list live in
   shared/base.css. Classifier keeps the .drag-over modifier locally
   because it's the only tool whose empty state is a drop target. */
.empty-state.drag-over {
    background: var(--primary-light);
    outline: 2px dashed var(--primary);
    outline-offset: -4px;
}

/* Browser Warning */
.browser-warning {
    background-color: rgba(217, 119, 6, 0.08);
    border: 2px solid var(--warning);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    text-align: left;
}

.browser-warning h3 {
    color: var(--warning);
    margin-top: 0;
}

.browser-warning ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

/* Main App */
.main-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: var(--bg);
    position: relative;
}

/* Header — shared/base.css provides .app-header base */
.app-header {
    padding: 0.5rem 1rem;
}

.header-divider {
    color: var(--border);
    margin: 0 0.25rem;
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Folder Tree Pane */
.folder-tree-pane {
    width: 300px;
    min-width: 150px;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border);
    flex-shrink: 0;
    position: relative;
    transition: width 0.2s ease, min-width 0.2s ease;
}

.folder-tree-pane.collapsed {
    width: 40px !important;
    min-width: 40px !important;
    max-width: 40px !important;
    overflow: hidden;
}

.folder-tree-pane.collapsed .pane-header-controls,
.folder-tree-pane.collapsed .folder-tree,
.folder-tree-pane.collapsed .pane-header h3 {
    display: none;
}

.folder-tree-pane.collapsed .pane-header {
    padding: 0.5rem;
    justify-content: center;
}

.folder-tree-pane.collapsed .pane-header-title {
    flex-direction: column;
}

.pane-header-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.collapse-tree-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* Resize Handle */
.resize-handle {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: col-resize;
    background-color: transparent;
    z-index: 10;
}

.resize-handle:hover {
    background-color: var(--primary);
}

.pane-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
}

.pane-header-left,
.pane-header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pane-header h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.pane-header-controls {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.folder-stats,
.file-stats {
    display: flex;
    gap: 1rem;
    font-size: 12px;
    color: var(--text-muted);
}

.folder-tree {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

/* Folder Item */
.folder-item {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: var(--radius);
    user-select: none;
    transition: background-color 0.15s;
}

.folder-item:hover {
    background-color: var(--bg-hover);
}

/* Counts read "direct+total". Completed numbers are blue — var(--primary),
   which is theme-aware (medium blue in light, lighter blue in dark). The
   direct number is always completed (known the moment the folder is read).
   The "+total" subtree count stays muted grey + pulses while still scanning,
   then turns blue once final. Once the row is fully scanned (both numbers
   blue) the folders/files labels turn blue too (.folder-count.done). */
.folder-count .ct-direct,
.folder-count .ct-total {
    color: var(--primary);
}
.folder-count .ct-total.pending {
    color: var(--text-muted, #9aa0a6);
    font-style: italic;
    animation: scan-pulse 1.2s ease-in-out infinite;
}
.folder-count.done .ct-label {
    color: var(--primary);
}
@keyframes scan-pulse {
    0%, 100% { opacity: 0.55; }
    50%      { opacity: 1; }
}

/* Page footer — hosts the live scan status. */
.app-footer {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    padding: 0.2rem 0.75rem;
    border-top: 1px solid var(--border, #e2e2e2);
    background: var(--bg-secondary, #f5f5f5);
    font-size: 0.75rem;
    color: var(--text-muted, #8a8a8a);
    min-height: 1.4em;
}
.scan-status {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.scan-status.scanning { color: var(--primary, #2868c8); }

.folder-item.selected {
    background-color: var(--bg-selected);
    font-weight: 500;
}

.folder-item.folder-hover-highlight {
    background-color: rgba(217, 119, 6, 0.12);
    border-left: 3px solid var(--warning);
    transition: background-color 0.2s, border-left 0.2s;
}

.folder-item.has-unsaved {
    border-left: 3px solid var(--warning);
}

.folder-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-muted);
}

.folder-icon {
    margin-right: 0.5rem;
    color: var(--text-muted);
}

.folder-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.folder-count {
    font-size: 11px;
    color: var(--text-muted);
    margin-left: 0.5rem;
}

.folder-children {
    margin-left: 1.5rem;
}

/* ── Welcome screen (intro + tutorial) ─────────────────────────────────── */
.empty-state--overlay { overflow-y: auto; }
.welcome { max-width: 900px; padding: 1.5rem 0.5rem 2.5rem; }
.welcome__title { font-size: 2.6rem; line-height: 1.1; margin: 0 0 0.6rem; }
.welcome__lede {
    font-size: 1.2rem; line-height: 1.55; color: var(--text);
    margin: 0 auto 2rem; max-width: 62ch;
}
.welcome__methods {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
    margin: 1.75rem 0 0; text-align: left;
}
@media (max-width: 780px) { .welcome__methods { grid-template-columns: 1fr; } }
.method {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem 1.15rem; background: var(--bg);
}
.method--primary { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); }
.method__title { font-size: 1.1rem; margin: 0 0 0.5rem; }
.method__tag {
    display: inline-block; font-size: 0.68rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.04em; color: var(--primary);
    margin-left: 0.4rem; vertical-align: middle;
}
.method__tag--warn { color: var(--warning); }
.method__what { font-size: 0.95rem; color: var(--text-muted); margin: 0 0 0.7rem; }
.method__steps { margin: 0; padding-left: 1.25rem; font-size: 0.95rem; line-height: 1.6; }
.method__steps li { margin: 0.35rem 0; }
.method__steps code {
    background: var(--bg-secondary); padding: 0.05rem 0.35rem;
    border-radius: 4px; font-size: 0.85em;
}
.welcome__note { font-size: 0.9rem; color: var(--text-muted); margin-top: 1.5rem; }

/* ── Workspaces (welcome manager) ──────────────────────────────────────── */
.workspaces { text-align: left; margin: 1.5rem 0 0.5rem; }
.ws-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.ws-head h2 { margin: 0; font-size: 1.4rem; }
.ws-list { display: flex; flex-direction: column; gap: 0.4rem; }
.ws-empty { color: var(--text-muted); font-size: 0.85rem; padding: 0.75rem; border: 1px dashed var(--border); border-radius: var(--radius); }
.ws-row {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--bg);
}
.ws-row__main { flex: 1; min-width: 0; }
.ws-row__name { font-weight: 600; }
.ws-row__meta { font-size: 0.78rem; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ws-row__actions { display: flex; gap: 0.3rem; flex-shrink: 0; }
.ws-or { font-size: 0.82rem; color: var(--text-muted); margin: 1rem 0 0.5rem; }

/* ── Workflow mode switch (header) ─────────────────────────────────────── */
.mode-switch {
    display: inline-flex;
    margin-left: 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.mode-btn {
    border: none;
    background: var(--bg);
    color: var(--text-muted);
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    cursor: pointer;
}
.mode-btn + .mode-btn { border-left: 1px solid var(--border); }
.mode-btn.active {
    background: var(--primary);
    color: var(--bg);
    font-weight: 600;
}

/* ── Target pane (Classify & Copy) ─────────────────────────────────────── */
.target-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.target-pane[hidden], .spreadsheet-pane[hidden] { display: none; }

.target-tabs { display: flex; gap: 0.25rem; }
.target-tab {
    border: 1px solid var(--border);
    border-bottom: none;
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: 0.3rem 0.8rem;
    font-size: 0.85rem;
    border-radius: var(--radius) var(--radius) 0 0;
    cursor: pointer;
}
.target-tab.active {
    background: var(--bg);
    color: var(--primary);
    font-weight: 600;
}

.target-body { flex: 1; overflow: hidden; }
.target-panel { height: 100%; display: flex; flex-direction: column; }
.target-panel[hidden] { display: none; }
.target-panel__toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.target-hint { font-size: 0.75rem; color: var(--text-muted); }

.target-tree { flex: 1; overflow: auto; padding: 0.5rem 0.75rem; }
.target-empty { color: var(--text-muted); font-size: 0.85rem; padding: 1rem 0.25rem; }

/* tree nodes */
.tnode { margin: 0.1rem 0; }
.tnode__children { margin-left: 1.25rem; border-left: 1px dashed var(--border); padding-left: 0.5rem; }
.tnode__row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.3rem;
    border-radius: var(--radius);
}
.tnode__row:hover { background: var(--bg-hover); }
.tnode__toggle {
    border: none; background: none; cursor: pointer;
    color: var(--text-muted); width: 1.1em; font-size: 0.8rem; padding: 0;
}
.tnode__icon { font-size: 0.85rem; }
.tnode__name { flex: 0 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tnode--leaf > .tnode__row > .tnode__name { color: var(--primary); font-weight: 600; }
.tnode--party > .tnode__row > .tnode__name { font-weight: 700; }
.tnode--bin > .tnode__row > .tnode__name { color: var(--primary); }
.tnode__badge {
    background: var(--primary); color: var(--bg);
    border-radius: 999px; padding: 0 0.4rem; font-size: 0.7rem; font-weight: 600;
}
/* Node CRUD controls sit to the LEFT of the level name (always visible) so
   building/pruning the tree is a one-click affordance, not a hover-hunt. */
.tnode__actions { display: inline-flex; gap: 0.1rem; margin-right: 0.15rem; flex: 0 0 auto; }
.tnode__act {
    border: 1px solid var(--border); background: var(--bg);
    border-radius: var(--radius); cursor: pointer;
    font-size: 0.72rem; padding: 0.05rem 0.35rem; color: var(--text);
}
.tnode__act:hover { background: var(--bg-hover); }

/* placed files under a node */
.tnode__files { margin: 0.1rem 0 0.2rem 1.6rem; }
.tfile { display: flex; align-items: baseline; gap: 0.4rem; font-size: 0.75rem; padding: 0.05rem 0; }
.tfile__orig { color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 14rem; }
.tfile__arrow { color: var(--text-muted); }
.tfile__name { color: var(--text); }
.tfile--err .tfile__name { color: var(--danger); }
.tfile--err::before { content: "⚠"; color: var(--danger); }

/* transmittal slots + bin form */
.tslot { margin: 0.15rem 0 0.15rem 1.1rem; }
.tslot__row { display: flex; align-items: center; gap: 0.5rem; padding: 0.15rem 0.3rem; }
.tslot__name { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.tnode--bin { margin-left: 1.1rem; }
.binform {
    display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
    margin: 0.2rem 0 0.3rem 1.1rem; padding: 0.4rem; background: var(--bg-secondary);
    border: 1px solid var(--border); border-radius: var(--radius);
}
.binform input, .binform select {
    font-size: 0.78rem; padding: 0.2rem 0.3rem;
    border: 1px solid var(--border); border-radius: var(--radius);
    background: var(--bg); color: var(--text);
}
.binform__seq { width: 7rem; }
.binform__title { width: 11rem; }

/* drop-target affordance */
.tnode__row.drop-hover, .tslot.drop-hover { outline: 2px dashed var(--primary); outline-offset: -2px; background: var(--primary-light); }

/* ── Source-tree file rows (classify mode) ─────────────────────────────── */
.file-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.15rem 0.5rem;
    cursor: grab;
    border-radius: var(--radius);
    font-size: 0.85rem;
    user-select: none;
}
.file-item:hover { background: var(--bg-hover); }
.file-item:active { cursor: grabbing; }
.file-item.match-highlight { background: var(--primary-light); outline: 1px solid var(--primary); }
.folder-item[draggable="true"] { cursor: grab; }
.file-icon { color: var(--text-muted); }
.file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* classification state dot */
.cl-dot {
    width: 0.55rem; height: 0.55rem; border-radius: 999px; flex-shrink: 0;
    border: 1px solid var(--border); background: transparent;
}
.cl-dot--none        { background: transparent; }
.cl-dot--tracking,
.cl-dot--transmittal { background: var(--warning); border-color: var(--warning); }
.cl-dot--partial     { background: var(--warning); border-color: var(--warning); }
.cl-dot--done        { background: var(--success); border-color: var(--success); }
.cl-dot--excluded    { background: var(--text-muted); border-color: var(--text-muted); opacity: 0.6; }
.file-item.excluded .file-name { text-decoration: line-through; color: var(--text-muted); }

/* placed-file row in the target pane is clickable (reveal in source) */
.tfile { cursor: pointer; }
.tfile:hover .tfile__name { text-decoration: underline; }

/* cross-tree reveal flash */
.reveal-flash, .match-highlight { animation: cl-flash 1.5s ease-out; }
@keyframes cl-flash {
    0%, 40% { background: var(--primary-light); outline: 2px solid var(--primary); outline-offset: -2px; }
    100% { background: transparent; outline-color: transparent; }
}

/* exclude/include context menu */
.cl-menu {
    position: fixed; z-index: 9500;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: 0 6px 18px rgba(0,0,0,0.18);
    padding: 0.25rem; min-width: 11rem;
}
.cl-menu__item {
    display: block; width: 100%; text-align: left;
    border: none; background: none; color: var(--text);
    padding: 0.4rem 0.6rem; font-size: 0.83rem; cursor: pointer; border-radius: var(--radius);
}
.cl-menu__item:hover { background: var(--bg-hover); }

/* Spreadsheet Pane */
.spreadsheet-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.spreadsheet-container {
    flex: 1;
    overflow: auto;
    background-color: var(--bg);
}

/* ZIP Extract Button in Tree */
.zip-extract-btn {
    margin-left: auto;
    padding: 0.15rem 0.4rem;
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity 0.15s;
}

.folder-item:hover .zip-extract-btn {
    opacity: 1;
}

.zip-extract-btn:disabled {
    opacity: 0.5;
    cursor: wait;
}

/* ZIP Extract All Button */
.zip-extract-all-btn {
    margin-left: auto;
    padding: 0.15rem 0.4rem;
    font-size: 0.7rem;
    opacity: 0;
    transition: opacity 0.15s;
}

.folder-item:hover .zip-extract-all-btn {
    opacity: 1;
}

.zip-extract-all-btn:disabled {
    opacity: 0.5;
    cursor: wait;
}