/* Explorer */
#explorer {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px -10px rgba(0,0,0,0.5);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    outline: none;
    position: fixed;
    z-index: 1004;
    overflow: visible;
    padding-right: 0px;
    padding-bottom: 10px;
    /* Transition on width/height removed to prevent lag during manual resize. */
    transition: transform 0.3s var(--ease-smooth), opacity 0.3s var(--ease-smooth);
}

/* =========================
   Task Center / Command Strip
   ========================= */

.task-command-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid #e0e0e0;
    background: #fdfdfd;
}

body.theme-dark .task-command-strip {
    background: #0f172a;
    border-color: #334155;
}

.task-cmd-left, .task-cmd-right {
    display: flex;
    gap: 8px;
    align-items: center;
}

.task-cmd-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 700;
    color: #444;
    background: #f2f2f2;
    border: 1px solid #dcdcdc;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

body.theme-dark .task-cmd-btn {
    background: #1e293b;
    border-color: #334155;
    color: #cbd5e1;
}

.task-cmd-btn:hover {
    background: #e8e8e8;
    border-color: #c0c0c0;
}

body.theme-dark .task-cmd-btn:hover {
    background: #334155;
}

.task-cmd-btn.primary {
    background: #3b82f6;
    color: white;
    border-color: #2563eb;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.task-cmd-btn.primary:hover {
    background: #2563eb;
}

.task-cmd-btn.secondary-backlog {
    background: #fff;
    color: #444;
    border: 1px solid #dcdcdc;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

body.theme-dark .task-cmd-btn.secondary-backlog {
    background: #0f172a;
    color: #e2e8f0;
}

.task-cmd-btn.secondary-backlog:hover {
    background: #f8f8f8;
    border-color: #b0b0b0;
}

.task-filters {
    display: flex;
    gap: 6px;
    padding: 8px 12px;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    border-bottom: 1px solid var(--border-color);
}
.task-filters::-webkit-scrollbar { display: none; }

.task-filter-chip {
    font-size: 10px;
    padding: 4px 8px;
    border-radius: 99px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-dim);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.task-filter-chip:hover, .task-filter-chip.active {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
    border-color: var(--accent-blue);
}

/* Enhanced Task Card (Conversation Item) */
.conv-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: auto;
    padding: 12px;
}

.task-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    width: 100%;
}

.task-id {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(47, 129, 255, 0.1);
    padding: 2px 6px;
    border-radius: 6px;
    letter-spacing: 0.02em;
}

.task-status-badge {
    font-size: 9px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.status-open { background: rgba(59, 130, 246, 0.15); color: #3b82f6; border: 1px solid rgba(59, 130, 246, 0.2); }
.status-progress { background: rgba(245, 158, 11, 0.15); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.2); }
.status-done { background: rgba(16, 185, 129, 0.15); color: #10b981; border: 1px solid rgba(16, 185, 129, 0.2); }
.status-error { background: rgba(239, 68, 68, 0.15); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.2); }

.task-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    margin: 4px 0 8px 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 1.5em; /* Ensure space even if empty */
    word-break: break-word;
}

/* Ensure title is visible even on active background */
.conv-item.active .task-title {
    color: var(--text-primary);
}

.task-meta-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    font-size: 10px;
    color: var(--text-dim);
}

.task-tag {
    display: flex;
    align-items: center;
    gap: 3px;
}

body.theme-dark header {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 15px 45px 0 rgba(0, 0, 0, 0.5);
}

/* Consolidated Conversation List */
.conv-list {
    padding: 0;
    overflow-y: auto;
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    transition: all 0.3s ease;
}

body.theme-dark .conv-list {
    background: #1e293b;
}

.backlog-header {
    display: flex;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 0 12px;
    position: sticky;
    top: 0;
    z-index: 10;
    min-height: 40px;
    align-items: center;
}

body.theme-dark .backlog-header {
    background: #1e293b;
    border-color: #334155;
}

.header-cell {
    font-size: 11px;
    font-weight: 700;
    color: #495057;
    padding: 8px;
    white-space: nowrap;
}

body.theme-dark .header-cell {
    color: #94a3b8;
}

.backlog-row {
    display: flex;
    align-items: center;
    padding: 0 12px;
    border-bottom: 1px solid #f1f3f5;
    background: #fff;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 48px;
    border-radius: 0;
    margin: 0;
    box-shadow: none;
    gap: 0;
    cursor: pointer;
    position: relative;
    overflow: visible;
}

body.theme-dark .backlog-row {
    background: #0f172a;
    border-color: #1e293b;
}

.backlog-row:hover {
    background: #f1f3f5;
    z-index: 1;
}

body.theme-dark .backlog-row:hover {
    background: #1e293b;
}

.backlog-row.active {
    background: #fffdf5 !important;
    border-left: 4px solid #fadb14 !important;
}

body.theme-dark .backlog-row.active {
    background: #2a281a !important;
    border-left-color: #fadb14 !important;
}

.backlog-cell {
    padding: 8px;
    display: flex;
    align-items: center;
    font-size: 13px;
    color: #212529;
    overflow: visible;
}

body.theme-dark .backlog-cell {
    color: #e2e8f0;
}

.cell-subject { flex: 1; min-width: 180px; font-weight: 500; display: flex; align-items: center; gap: 8px; }
.cell-status { width: 80px; flex-shrink: 0; justify-content: center; }
.cell-priority { width: 60px; flex-shrink: 0; justify-content: center; }
.cell-date-created { width: 100px; flex-shrink: 0; font-size: 12px; color: #868e96; justify-content: center; }
.cell-date-updated { width: 100px; flex-shrink: 0; font-size: 12px; color: #868e96; justify-content: center; }
.cell-actions { 
    width: 90px; 
    flex-shrink: 0; 
    opacity: 0; 
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); 
    justify-content: flex-end; 
    overflow: visible;
}

/* Responsive hiding of columns */
@media (max-width: 1100px) {
    .cell-date-created, .header-cell.cell-date-created { display: none; }
}
@media (max-width: 900px) {
    .cell-priority, .header-cell.cell-priority { display: none; }
}
@media (max-width: 768px) {
    .cell-status, .header-cell.cell-status { display: none; }
    .cell-date-updated, .header-cell.cell-date-updated { display: none; }
    .cell-subject { min-width: 0; }
}


.backlog-row.active .cell-actions,
.backlog-row:hover .cell-actions { 
    opacity: 1; 
}

/* Backlog Components */
.backlog-label {
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
}

.type-task { background: #87d068; } 
.type-bug { background: #ff4d4f; }

.subject-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
    color: #000;
}

body.theme-dark .subject-text {
    color: #fff;
}

.backlog-status-capsule {
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}

.status-processing { background: #1890ff; color: #fff; } 
.status-finished { background: #52c41a; color: #fff; } 
.status-open-backlog { background: #e9ecef; color: #495057; border: 1px solid #ced4da; }

.priority-arrow {
    font-weight: bold;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.priority-high { color: #f5222d; }
.priority-normal { color: #1890ff; }
.priority-low { color: #52c41a; }

/* Timeline Card Style for Conversation Items - REMOVED OLD STYLES */
/* We are using Backlog row style now */


.conv-item:hover {
    background: var(--glass-bg-2);
    border-color: var(--accent-blue-2);
    box-shadow: 0 12px 24px rgba(0,0,0,0.12);
}

.conv-item.active {
    background: var(--item-active);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 1px var(--accent-blue), 0 12px 32px rgba(47, 129, 255, 0.15);
}

/* Glass Refraction Effect */
.conv-item::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.conv-item-title {
    display: none; /* Replaced by .task-title */
}

.conv-item-meta {
    font-size: 10px;
    height: 20px;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Minimized Ball State */
#explorer.minimized::after {
    content: "";
    position: absolute;
}
@media (max-width: 768px) {
    #explorer.minimized::after {
        background-size: 18px;
    }
}

.conv-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    opacity: 0;
    transition: all 0.2s ease;
    padding: 6px 10px;
    background: var(--bg-color);
    border: 1px solid var(--glass-border-strong);
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.conv-item:hover .conv-actions,
.conv-item.active .conv-actions {
    opacity: 1;
}

.conv-btn {
    width: 20px;
    min-width: 20px;
    min-height: 20px;
    padding: 2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
}
.conv-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.conv-btn:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.conv-btn.danger {
    color: rgba(248, 113, 113, 0.95);
}

.conv-btn.danger:hover {
    background: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.25);
}

.conv-divider {
    height: 1px;
    background: var(--border-color);
}

/* Infinite scroll loader (waterfall-like end cap) */
.conv-loader {
    position: relative;
    overflow: hidden;
    margin: 0 0 12px 0;
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.03);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-dim);
    user-select: none;

    /* Masonry: keep loader as a block inside the columns */
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    page-break-inside: avoid;
    width: 100%;
}

body.theme-light .conv-loader {
    background: rgba(0,0,0,0.03);
    border-color: rgba(0,0,0,0.08);
}

.conv-loader-shimmer {
    position: absolute;
    inset: 0;
    background: linear-gradient(
      120deg,
      transparent 0%,
      rgba(61, 214, 255, 0.14) 22%,
      rgba(167, 139, 250, 0.10) 40%,
      transparent 60%
    );
    transform: translateX(-60%);
    opacity: 0;
}

.conv-loader.active .conv-loader-shimmer {
    opacity: 1;
    animation: convShimmer 1.25s linear infinite;
}

@keyframes convShimmer {
    0% { transform: translateX(-70%); }
    100% { transform: translateX(70%); }
}

.conv-loader-dots {
    display: inline-flex;
    gap: 6px;
    align-items: center;
}

.conv-loader-dots .dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: rgba(255,255,255,0.45);
    box-shadow: 0 0 0 3px rgba(47,129,255,0.10);
    transform: translateY(0);
    opacity: 0.65;
}

body.theme-light .conv-loader-dots .dot {
    background: rgba(15, 23, 42, 0.40);
}

.conv-loader.active .conv-loader-dots .dot {
    animation: convDotBounce 0.9s ease-in-out infinite;
}

.conv-loader.active .conv-loader-dots .dot:nth-child(2) { animation-delay: 0.12s; }
.conv-loader.active .conv-loader-dots .dot:nth-child(3) { animation-delay: 0.24s; }

@keyframes convDotBounce {
    0%, 100% { transform: translateY(0); opacity: 0.55; }
    50% { transform: translateY(-4px); opacity: 0.95; }
}

.conv-loader-text {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.10em;
    text-transform: uppercase;
}

.explorer-header, .usage-header {
    padding: 12px 16px;
    font-size: 11px;
    font-weight: 800;
    color: var(--text-dim);
    letter-spacing: 0.08em;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    min-height: 49px;
}

.badge {
    font-size: 10px;
    color: rgba(61, 214, 255, 0.92);
    border: 1px solid rgba(61, 214, 255, 0.26);
    background: rgba(61, 214, 255, 0.08);
    padding: 4px 10px;
    border-radius: 999px;
    user-select: none;
    text-shadow: 0 0 14px rgba(61, 214, 255, 0.12);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.explorer-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.10);
    background: rgba(255,255,255,0.02);
}

.explorer-toolbar #version-select {
    width: 100%;
    text-align: left;
}

.version-switch-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* tiny status pill near the switch icon */
.version-status {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 14px;
    height: 14px;
    padding: 0 4px;
    border-radius: 999px;
    background: rgba(234, 88, 12, 0.18);
    border: 1px solid rgba(234, 88, 12, 0.35);
    color: var(--text-primary);
    font-size: 9px;
    line-height: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transform: translateY(2px);
    transition: opacity 0.15s var(--ease-smooth), transform 0.15s var(--ease-smooth);
}

/* show only on hover/focus for a clean toolbar */
.version-switch-wrap:hover .version-status,
.version-switch-wrap:focus-within .version-status {
    opacity: 1;
    transform: translateY(0);
}

.toolbar-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 11px;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    transition: background 0.15s var(--ease-smooth), color 0.15s var(--ease-smooth), border-color 0.15s var(--ease-smooth);
}
.toolbar-btn:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.toolbar-btn:hover {
    background: var(--item-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.toolbar-btn.primary {
    color: var(--accent);
}

.toolbar-btn.primary:hover {
    background: rgba(234, 88, 12, 0.08);
    border-color: rgba(234, 88, 12, 0.35);
}

.toolbar-btn.danger {
    color: rgba(248, 113, 113, 0.95);
}

.toolbar-btn.danger:hover {
    background: rgba(248, 113, 113, 0.12);
    border-color: rgba(248, 113, 113, 0.25);
}

.explorer-body {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
    max-height: calc(100vh - 250px);
}

.explorer-section-title {
    padding: 4px 16px;
    font-size: 10px;
    color: var(--text-dim);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.file-tree { font-size: 13px; }

.tree-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
    cursor: url(https://www.lovart.ai/assets/pointer-hand-mini.png) 0 0, auto;
    color: var(--text-secondary);
    border-left: 2px solid transparent;
    transition: background 0.12s var(--ease-smooth), color 0.12s var(--ease-smooth), border-color 0.12s var(--ease-smooth);
}
.tree-row:active {
    cursor: url(https://www.lovart.ai/assets/pointer-active-mini.png) 0 0,auto
}

.tree-row:hover {
    background: var(--item-hover);
    color: var(--text-primary);
}

.tree-row.active {
    background: var(--item-active);
    color: var(--text-primary);
    border-left-color: var(--accent);
}

/* VSCode-ish change decorations */
.tree-row.changed-added .node-name::after,
.tree-row.changed-modified .node-name::after,
.tree-row.changed-deleted .node-name::after {
    margin-left: 6px;
    font-size: 10px;
    line-height: 1;
    opacity: 0.95;
}

.tree-row.changed-added .node-name::after { content: 'A'; color: #22c55e; }
.tree-row.changed-modified .node-name::after { content: 'M'; color: #60a5fa; }
.tree-row.changed-deleted .node-name::after { content: 'D'; color: #f87171; }

.tree-row.changed-added .node-icon, .tree-row.changed-added .node-name { color: #22c55e; }
.tree-row.changed-modified .node-icon, .tree-row.changed-modified .node-name { color: #60a5fa; }
.tree-row.changed-deleted .node-icon, .tree-row.changed-deleted .node-name { color: #f87171; }

.tree-row.changed-deleted .node-name {
    text-decoration: line-through;
    opacity: 0.7;
}

.caret {
    width: 12px;
    text-align: center;
    font-size: 10px;
    color: var(--text-dim);
    transition: transform 0.2s var(--ease-smooth);
}

.caret.open { transform: rotate(90deg); }

.node-icon {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 16px;
}

.node-icon .icon {
    width: 14px;
    height: 14px;
    display: block;
}

/* icon-only buttons inside toolbars */
.toolbar-btn.icon-only {
    width: 32px;
    height: 28px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    position: relative;
}

.toolbar-btn.icon-only .icon {
    width: 14px;
    height: 14px;
    display: block;
}

/* a11y: keep text for screen readers but hide visually */
.toolbar-btn.icon-only .label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* prompt icon svg */
.prompt-char {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.prompt-char .icon {
    width: 16px;
    height: 16px;
    display: block;
}

.tree-children {
    overflow: hidden;
    will-change: height, opacity;
}

/* =========================================
   IDE Layout Styles (New)
   ========================================= */

/* Override layout.css column direction for #preview-panel */
#preview-panel.ide-layout {
    display: flex !important;
    flex-direction: row !important;
    padding: 0 !important;
    gap: 0 !important;
    background: var(--glass-bg); /* Fallback */
    overflow: hidden;
}

/* Solid background for IDE feel, overriding glass in some themes if desired */
body.theme-light #preview-panel.ide-layout {
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border: 1px solid #e5e7eb;
}

body:not(.theme-light) #preview-panel.ide-layout {
    background: #1e1e1e; /* VSCode Dark */
    border: 1px solid #333;
}

/* --- Sidebar --- */
.ide-sidebar {
    width: 260px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    background: inherit; /* Match panel bg */
    flex-shrink: 0;
    transition: width 0.2s ease;
}

.ide-header {
    height: 40px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 12px;
    flex-shrink: 0;
}

.window-controls {
    display: flex;
    gap: 6px;
}

.window-controls .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.window-controls .dot.red { background: #ff5f56; border: 1px solid #e0443e; }
.window-controls .dot.yellow { background: #ffbd2e; border: 1px solid #dea123; }
.window-controls .dot.green { background: #27c93f; border: 1px solid #1aab29; }

.ide-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    opacity: 0.8;
    user-select: none;
}

/* File Explorer Section */
.ide-explorer-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.ide-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    user-select: none;
    flex-shrink: 0;
}

.ide-section-header:hover {
    color: var(--text-primary);
}

.section-actions {
    display: flex;
    gap: 2px;
    opacity: 0; /* Show on hover like VSCode */
    transition: opacity 0.2s;
}

.ide-sidebar:hover .section-actions,
.ide-section-header:hover .section-actions {
    opacity: 1;
}

.section-actions .icon-btn.small {
    width: 22px;
    height: 22px;
    padding: 3px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
}
.section-actions .icon-btn.small:hover {
    background: rgba(128,128,128,0.15);
    color: var(--text-primary);
    border-radius: 4px;
}

/* Reuse .file-tree but ensure it fits */
.ide-explorer-section .file-tree {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 10px;
}
.ide-explorer-section .file-tree::-webkit-scrollbar { 
    width: 6px; 
}
.ide-explorer-section .file-tree::-webkit-scrollbar-thumb { 
    background: rgba(128, 128, 128, 0.15) !important;
    border-radius: 3px; 
}
.ide-explorer-section .file-tree:hover::-webkit-scrollbar-thumb { 
    background: rgba(128, 128, 128, 0.4); 
}

body.theme-light .ide-explorer-section .file-tree::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2) !important;
}
body.theme-light .ide-explorer-section .file-tree:hover::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.4) !important;
}

/* Footer Toolbar (Version Control) */
.explorer-toolbar.footer-toolbar {
    border-top: 1px solid var(--border-color);
    border-bottom: none;
    padding: 12px;
    background: transparent;
    display: flex;
    flex-direction: row;
    gap: 10px;
    flex-shrink: 0;
}

.footer-toolbar .toolbar-actions {
    display: flex;
    gap: 4px;
    justify-content: space-between;
}

.footer-toolbar .combo-trigger {
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 11px;
}

/* --- Main Editor Area --- */
.ide-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: inherit;
    position: relative;
}

.ide-tab-bar {
    height: 36px;
    display: flex;
    align-items: flex-end; /* Tabs stick to bottom */
    background: rgba(0,0,0,0.03); 
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    flex-shrink: 0;
}

body:not(.theme-light) .ide-tab-bar {
    background: #252526; /* VSCode tab bar dark */
}

/* Override existing preview-tabs styles for IDE look */
.ide-tab-bar .preview-tabs {
    flex: 0 0 auto;
    border-right: none;
    height: 100%;
}

.ide-tab-bar .preview-tabs .tab {
    height: 100%;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-color);
    font-weight: normal;
    font-size: 12px;
    padding: 0 12px;
    gap: 8px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    border-top: 2px solid transparent; /* Selection indicator */
}

.ide-tab-bar .preview-tabs .tab.active {
    background: inherit; /* Blend with editor bg */
    border-top-color: var(--accent);
    color: var(--text-primary);
}

.ide-tab-bar .preview-path {
    font-size: 11px;
    opacity: 0.5;
    padding: 0 12px;
    margin-left: auto; /* Push to right */
    border-left: none;
    display: flex;
    align-items: center;
    height: 100%;
}

/* Editor content */
.preview-editor {
    flex: 1;
    overflow: auto;
    padding: 0;
    position: relative;
}

.preview-content {
    /* Code styling */
    padding: 16px 24px;
    font-size: 13px;
    line-height: 1.5;
    font-family: 'JetBrains Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
    min-height: 100%;
    margin: 0;
    tab-size: 4;
}

/* Ensure no conflicts with global scrollbars */
.preview-editor::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}
.preview-editor::-webkit-scrollbar-thumb {
    background: rgba(121, 121, 121, 0.2);
    border-radius: 6px;
    border: 3px solid transparent;
    background-clip: content-box;
}
.preview-editor::-webkit-scrollbar-thumb:hover {
    background-color: rgba(121, 121, 121, 0.4);
}

/* Fix chat container flex behavior in the new split layout */
#chat-container {
    flex: 1;
    width: auto !important;
    min-width: 320px; /* Adjust min-width if needed */
}



/* Backlog Style Table Components */
.conv-list {
    padding: 0;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    background: #ffffff;
}

body.theme-dark .conv-list {
    background: #1e293b;
}

.backlog-header {
    display: grid;
    grid-template-columns: 1fr 80px 60px 100px 100px 90px;
    background: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    padding: 0 12px;
    position: sticky;
    top: 0;
    z-index: 10;
    height: 40px;
    align-items: center;
}

@media (max-width: 1100px) {
    .backlog-header { grid-template-columns: 1fr 80px 60px 0 100px 90px; }
}
@media (max-width: 900px) {
    .backlog-header { grid-template-columns: 1fr 80px 0 0 100px 90px; }
}
@media (max-width: 768px) {
    .backlog-header { grid-template-columns: 1fr 0 0 0 0 90px; }
}

body.theme-dark .backlog-header {
    background: #1e293b;
    border-color: #334155;
}

.header-cell {
    font-size: 11px;
    font-weight: 700;
    color: #495057;
    padding: 8px;
    white-space: nowrap;
    text-align: center;
}

.header-cell.cell-subject {
    text-align: left;
}

body.theme-dark .header-cell {
    color: #94a3b8;
}

.backlog-row {
    display: grid;
    grid-template-columns: 1fr 80px 60px 100px 100px 90px;
    align-items: center;
    padding: 0 12px;
    border-bottom: 1px solid #f1f3f5;
    background: #fff;
    transition: background 0.1s ease;
    min-height: 48px;
    border-radius: 0;
    margin: 0;
    box-shadow: none;
    gap: 0;
    cursor: pointer;
    overflow: visible;
}

@media (max-width: 1100px) {
    .backlog-row { grid-template-columns: 1fr 80px 60px 0 100px 90px; }
}
@media (max-width: 900px) {
    .backlog-row { grid-template-columns: 1fr 80px 0 0 100px 90px; }
}
@media (max-width: 768px) {
    .backlog-row { grid-template-columns: 1fr 0 0 0 0 90px; }
}

body.theme-dark .backlog-row {
    background: #0f172a;
    border-color: #1e293b;
}

.backlog-row:hover {
    background: #f1f3f5;
}

body.theme-dark .backlog-row:hover {
    background: #1e293b;
}

.backlog-row.active {
    background: #fffbe6 !important; /* Backlog yellow highlight */
    border-left: 4px solid #fadb14 !important;
}

body.theme-dark .backlog-row.active {
    background: #3e3a24 !important;
    border-left-color: #fadb14 !important;
}

.backlog-cell {
    padding: 8px;
    display: flex;
    align-items: center;
    font-size: 13px;
    color: #212529;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    min-width: 0;
}

.backlog-cell.cell-actions {
    overflow: visible;
    text-overflow: initial;
    width: 80px;
}

.backlog-cell.cell-subject {
    justify-content: flex-start;
    gap: 8px;
    font-weight: 500;
}

.backlog-cell.cell-status,
.backlog-cell.cell-priority,
.backlog-cell.cell-date-created,
.backlog-cell.cell-date-updated {
    justify-content: center;
}

body.theme-dark .backlog-cell {
    color: #e2e8f0;
}

.backlog-label {
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    flex-shrink: 0;
}

.type-poc { background: #87d068; } 

.task-id-mini {
    flex-shrink: 0;
}

.subject-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    color: #000;
}

body.theme-dark .subject-text {
    color: #fff;
}

.backlog-status-capsule {
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}

.status-processing { background: #1890ff; color: #fff; } 

.priority-arrow {
    font-weight: bold;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Original Card Styles - Cleanup */
.task-card-header, .task-id, .task-status-badge, .task-title, .task-meta-row {
    display: none;
}