/* BIM-VS page */

.bim-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.bim-muted { color: var(--text-secondary); font-size: 0.75rem; }

/* Drawing list */

.bim-list-view { display: flex; flex-direction: column; height: 100%; }

.bim-header {
    padding: 20px 24px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-white);
    flex-shrink: 0;
}

.bim-header-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.bim-header h2 { margin: 0; font-size: 1.25rem; font-weight: 600; }

.bim-header select, .bim-toolbar select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.8125rem;
    font-family: inherit;
    background: var(--bg-white);
    outline: none;
}

.bim-header-row .btn-accent { margin-left: auto; }

.bim-subtext { color: var(--text-secondary); font-size: 0.8125rem; }

.bim-list-body { flex: 1; overflow: auto; padding: 16px 24px; }

.bim-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.8125rem;
}

.bim-table th {
    text-align: left;
    padding: 10px 12px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.bim-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.bim-table tbody tr { cursor: pointer; }
.bim-table tbody tr:hover { background: var(--hover-bg); }
.bim-row-actions { white-space: nowrap; text-align: right; }

/* Filters and selecting */

.bim-filter-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.bim-sort-label { display: inline-flex; align-items: center; gap: 6px; margin-left: auto; font-size: 0.8125rem; color: var(--text-secondary); }
.bim-check-cell { width: 28px; padding-right: 0 !important; }
.bim-check-cell input { margin: 0; display: block; cursor: pointer; }
.bim-select-bar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    padding: 8px 12px;
    background: var(--bg-white);
    border: 1px solid var(--accent);
    border-radius: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
}
.bim-select-delete { background: #e5484d; border-color: #e5484d; color: #fff; }
.bim-select-delete:hover { background: #cf3f44; border-color: #cf3f44; color: #fff; }

/* Drawing tree */

.bim-tree-search {
    width: 240px;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.8125rem;
    font-family: inherit;
    outline: none;
}

.bim-header-row .bim-new-folder { margin-left: auto; }
.bim-header-row .bim-new-folder + .btn-accent { margin-left: 0; }

.bim-tree-row td { padding-top: 6px; padding-bottom: 6px; vertical-align: middle; }
.bim-tree-name { display: flex; align-items: center; gap: 6px; min-width: 0; }
.bim-tree-caret {
    width: 18px;
    height: 20px;
    padding: 0;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8125rem;
    flex-shrink: 0;
}
.bim-tree-icon { display: inline-flex; color: var(--text-secondary); flex-shrink: 0; }
.bim-tree-label { font-weight: 500; }
.bim-tree-file { margin-left: 8px; font-size: 0.75rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bim-tree-project { background: var(--hover-bg); }
.bim-tree-project .bim-tree-label { font-weight: 600; }
.bim-tree-folder .bim-tree-icon { color: var(--accent); }
.bim-tree-sheet .bim-tree-label { font-weight: 400; }
.bim-table tbody tr.bim-tree-drop { background: rgba(67, 97, 238, 0.14); outline: 2px solid var(--accent); outline-offset: -2px; }

/* Sheet sidebar */

.bim-sheet-nav {
    width: 250px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px;
    background: var(--bg-white);
    border-right: 1px solid var(--border);
    min-height: 0;
    box-sizing: border-box;
}
.bim-sheet-nav input { width: 100%; box-sizing: border-box; }
.bim-nav-list { flex: 1; overflow-y: auto; min-height: 0; font-size: 0.8125rem; }
.bim-nav-row, .bim-nav-group { display: flex; align-items: center; gap: 6px; padding: 5px 6px; border-radius: 4px; cursor: pointer; }
.bim-nav-row:hover, .bim-nav-group:hover { background: var(--hover-bg); }
.bim-nav-row.current { background: var(--accent); color: #fff; }
.bim-nav-group { font-weight: 600; margin-top: 4px; }
.bim-nav-indent { padding-left: 22px; }
.bim-nav-caret { width: 12px; flex-shrink: 0; color: var(--text-secondary); }
.bim-nav-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bim-nav-count { flex-shrink: 0; font-size: 0.6875rem; opacity: 0.75; }
.bim-nav-none { padding: 6px; }
.bim-nav-rename { padding: 0 2px; border: none; background: none; color: inherit; cursor: pointer; font-size: 0.75rem; opacity: 0; flex-shrink: 0; }
.bim-nav-row:hover .bim-nav-rename, .bim-nav-rename:focus { opacity: 0.8; }
.bim-nav-toggle.active { background: var(--accent); border-color: var(--accent); color: #fff; }
#bim-page-select { max-width: 280px; }
#bim-project-filter { max-width: 240px; }

.bim-empty { padding: 48px; text-align: center; color: var(--text-secondary); }

/* Viewer */

.bim-viewer { display: flex; flex-direction: column; height: 100%; min-height: 0; }

.bim-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 14px;
    padding: 10px 16px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.bim-title { display: flex; flex-direction: column; min-width: 120px; max-width: 260px; }
.bim-title strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 0.875rem; }

.bim-group { display: flex; align-items: center; gap: 4px; }
.bim-zoom-label { min-width: 44px; text-align: center; font-size: 0.75rem; color: var(--text-secondary); }

.bim-tools {
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    gap: 0;
}

.bim-tool {
    padding: 5px 10px;
    border: none;
    border-right: 1px solid var(--border);
    background: var(--bg-white);
    font-size: 0.75rem;
    font-family: inherit;
    cursor: pointer;
    color: var(--text-primary);
}

.bim-tool:last-child { border-right: none; }
.bim-tool:hover { background: var(--hover-bg); }
.bim-tool.active { background: var(--accent); color: #fff; }

.bim-hint {
    padding: 6px 16px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-main);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.bim-workspace { flex: 1; display: flex; min-height: 0; }

.bim-stage {
    position: relative;
    flex: 1;
    overflow: auto;
    background: #e3e5e8;
    cursor: crosshair;
    user-select: none;
}

.bim-stage[data-tool="select"] { cursor: default; }
.bim-stage.bim-panning { cursor: grabbing; }

.bim-canvas-wrap { position: relative; }

.bim-sheet {
    position: absolute;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
    transform-origin: 0 0;
}

.bim-sheet.bim-sheet-zooming { will-change: transform; }

.bim-sheet canvas, .bim-overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.bim-sheet .bim-detail { inset: auto; }  /* placed over the visible region by bim.js */

.bim-overlay { pointer-events: none; overflow: visible; }
.bim-stage[data-tool="select"] .bim-shape * { pointer-events: visiblePainted; cursor: pointer; }
.bim-overlay .bim-handle { pointer-events: all; cursor: move; }

.bim-label {
    font-family: inherit;
    font-weight: 600;
    stroke: #fff;
    paint-order: stroke;
    pointer-events: none;
}

.bim-count-num { font-family: inherit; font-weight: 700; pointer-events: none; }

.bim-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

/* Side panel */

.bim-panel {
    width: 290px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    border-left: 1px solid var(--border);
    min-height: 0;
}

.bim-panel-section { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.bim-panel-grow { flex: 1; overflow-y: auto; min-height: 0; }

.bim-panel-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.bim-measure {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
}

.bim-measure:hover { background: var(--hover-bg); }
.bim-measure.selected { background: rgba(67, 97, 238, 0.1); }

.bim-measure input[type="color"] {
    width: 18px;
    height: 18px;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    margin-top: 3px;
    flex-shrink: 0;
}

.bim-measure-body { flex: 1; min-width: 0; }

.bim-measure-label {
    width: 100%;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 2px 4px;
    font-size: 0.8125rem;
    font-family: inherit;
    background: transparent;
    box-sizing: border-box;
}

.bim-measure-label:hover, .bim-measure-label:focus { border-color: var(--border); background: var(--bg-white); outline: none; }

.bim-measure-value { font-size: 0.75rem; color: var(--text-secondary); padding: 0 5px; }

.bim-measure-delete {
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    padding: 2px 4px;
}

.bim-measure-delete:hover { color: var(--danger); }

.bim-total { display: flex; justify-content: space-between; font-size: 0.8125rem; padding: 2px 0; }

@media (max-width: 900px) {
    .bim-panel { width: 220px; }
}

/* Sheets / models switch */

.bim-mode {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.bim-mode-btn {
    padding: 5px 12px;
    border: none;
    border-right: 1px solid var(--border);
    background: var(--bg-white);
    font-size: 0.8125rem;
    font-family: inherit;
    cursor: pointer;
    color: var(--text-primary);
}

.bim-mode-btn:last-child { border-right: none; }
.bim-mode-btn.active { background: var(--accent); color: #fff; }

.bim-issue-count {
    display: inline-block;
    min-width: 20px;
    padding: 1px 6px;
    border-radius: 10px;
    background: var(--danger);
    color: #fff;
    font-size: 0.75rem;
    text-align: center;
}

.bim-inline-check {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
    font-weight: normal;
}

/* 3D viewer */

.bim3d-stage {
    position: relative;
    flex: 1;
    overflow: hidden;
    min-width: 0;
}

.bim3d-canvas { position: absolute; inset: 0; display: block; }
.bim3d-stage[data-tool="distance"] .bim3d-canvas,
.bim3d-stage[data-tool="angle"] .bim3d-canvas,
.bim3d-stage[data-tool="area"] .bim3d-canvas,
.bim3d-stage[data-tool="pin"] .bim3d-canvas { cursor: crosshair; }

.bim3d-labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

.bim3d-labels > div { position: absolute; left: 0; top: 0; white-space: nowrap; }

.bim3d-label {
    pointer-events: auto;
    cursor: pointer;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.92);
    border: 1.5px solid var(--accent);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.bim3d-label.selected { box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.35); }
.bim3d-draft-label { pointer-events: none; border-style: dashed; }

.bim3d-pin {
    pointer-events: auto;
    cursor: pointer;
    padding: 2px 7px;
    border-radius: 12px 12px 12px 2px;
    background: var(--danger);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.bim3d-pin-in_progress { background: var(--warning); }
.bim3d-pin-resolved { background: var(--success); }
.bim3d-pin-closed { background: #868e96; }
.bim3d-pin.active { outline: 2px solid #fff; box-shadow: 0 0 0 4px var(--accent); }

.bim3d-snap { pointer-events: none; width: 10px; height: 10px; border: 2px solid #e5484d; background: rgba(255, 255, 255, 0.6); }
.bim3d-snap-surface { border-radius: 50%; width: 6px; height: 6px; }
.bim3d-snap-edge { transform-origin: center; rotate: 45deg; }

.bim-panel-tabs { display: flex; border-bottom: 1px solid var(--border); flex-shrink: 0; }

.bim-panel-tabs button {
    flex: 1;
    padding: 9px 4px;
    border: none;
    border-bottom: 2px solid transparent;
    background: none;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-secondary);
    cursor: pointer;
}

.bim-panel-tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

.bim3d-section-row { display: flex; align-items: center; gap: 8px; margin: 8px 0; }
.bim3d-section-row select { flex: 1; padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px; font-family: inherit; font-size: 0.8125rem; }
.bim-panel input[type="range"] { width: 100%; }

.bim3d-box-row { display: grid; grid-template-columns: 1fr; gap: 0; margin-top: 8px; font-size: 0.75rem; color: var(--text-secondary); }

.bim3d-props { width: 100%; border-collapse: collapse; font-size: 0.75rem; color: var(--text-primary); }
.bim3d-props th { text-align: left; font-weight: 600; padding: 3px 8px 3px 0; vertical-align: top; color: var(--text-secondary); white-space: nowrap; }
.bim3d-props td { padding: 3px 0; word-break: break-word; }

/* Model tree and properties */

.bim3d-tree-tab { display: flex; flex-direction: column; overflow: hidden; }
.bim3d-tree-controls { padding: 10px 12px 8px; border-bottom: 1px solid var(--border); flex-shrink: 0; }
.bim3d-tree-controls input[type="search"] { width: 100%; box-sizing: border-box; }
.bim3d-tree-actions { display: flex; gap: 4px; margin-top: 6px; }
.bim3d-tree-actions button { flex: 1; white-space: nowrap; padding-left: 2px; padding-right: 2px; }
.bim3d-dot-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 10px; padding: 8px 12px; border-bottom: 1px solid var(--border); font-size: 0.75rem; color: var(--text-primary); flex-shrink: 0; }
.bim3d-dot-toggle { display: inline-flex; align-items: center; gap: 4px; cursor: pointer; }
.bim3d-dot-toggle input { margin: 0; }
.bim3d-dot-size { display: inline-flex; align-items: center; gap: 6px; flex: 1; min-width: 110px; }
.bim-panel .bim3d-dot-size input[type="range"] { flex: 1; width: auto; min-width: 0; }
.bim3d-tree { flex: 1 1 50%; min-height: 80px; overflow: auto; padding: 4px 0; font-size: 0.75rem; }
.bim3d-tree > .bim-muted { padding: 6px 12px; }

.bim3d-tree-row { display: flex; align-items: center; gap: 3px; padding-right: 8px; min-height: 22px; cursor: pointer; color: var(--text-primary); }
.bim3d-tree-row:hover { background: var(--bg-hover, rgba(0, 0, 0, 0.04)); }
.bim3d-tree-row.selected { background: rgba(255, 176, 0, 0.22); }
.bim3d-tree-row.off .bim3d-tree-name { color: var(--text-secondary); text-decoration: line-through; }
.bim3d-tree-row input[type="checkbox"] { margin: 0; flex-shrink: 0; }
.bim3d-tree-caret { width: 16px; height: 18px; padding: 0; border: none; background: none; color: var(--text-secondary); cursor: pointer; font-size: 0.75rem; flex-shrink: 0; }
.bim3d-layer-swatch { width: 16px; height: 16px; padding: 0; border: 1px solid var(--border); border-radius: 3px; background: none; cursor: pointer; flex-shrink: 0; }
.bim3d-layer-swatch::-webkit-color-swatch-wrapper { padding: 0; }
.bim3d-layer-swatch::-webkit-color-swatch { border: none; border-radius: 2px; }
.bim3d-layer-clear { width: 14px; height: 16px; padding: 0; border: none; background: none; color: var(--text-secondary); cursor: pointer; font-size: 0.8125rem; line-height: 1; flex-shrink: 0; }
.bim3d-tree-nocheck { width: 13px; flex-shrink: 0; }
.bim3d-tree-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bim3d-tree-count { color: var(--text-secondary); flex-shrink: 0; }

.bim3d-tree-props { flex: 1 1 50%; min-height: 80px; overflow-y: auto; padding: 10px 12px; border-top: 1px solid var(--border); font-size: 0.75rem; }
.bim3d-tree-props .bim3d-props th { white-space: normal; width: 42%; }
.bim3d-props-count { font-weight: 600; margin-bottom: 6px; color: var(--text-primary); }
.bim3d-props-group { margin-top: 8px; border-top: 1px solid var(--border); padding-top: 6px; }
.bim3d-props-group summary { font-weight: 600; cursor: pointer; color: var(--text-primary); margin-bottom: 3px; word-break: break-word; }

.bim3d-issue-card {
    display: flex;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    cursor: pointer;
}

.bim3d-issue-card:hover { background: var(--hover-bg); }

.bim3d-issue-card img, .bim3d-issue-noimg {
    width: 72px;
    height: 54px;
    object-fit: cover;
    border-radius: 4px;
    background: #dee2e6;
    flex-shrink: 0;
}

.bim3d-issue-body { min-width: 0; font-size: 0.8125rem; display: flex; flex-direction: column; gap: 3px; }
.bim3d-issue-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.bim3d-status { display: inline-block; padding: 1px 7px; border-radius: 10px; font-size: 0.7rem; font-weight: 600; color: #fff; background: var(--danger); }
.bim3d-status-in_progress { background: var(--warning); }
.bim3d-status-resolved { background: var(--success); }
.bim3d-status-closed { background: #868e96; }
.bim3d-high { font-size: 0.7rem; font-weight: 700; color: var(--danger); }

.bim3d-snapshot { width: 100%; border-radius: 6px; margin: 8px 0; display: block; background: #dee2e6; }

.bim3d-issue-title-input, .bim3d-issue-desc, #bim3d-comment-input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 8px;
    font-family: inherit;
    font-size: 0.8125rem;
    margin-bottom: 8px;
}

.bim3d-issue-title-input { font-weight: 600; font-size: 0.875rem; }

.bim3d-issue-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 8px; margin-bottom: 8px; }

.bim3d-issue-fields label { display: flex; flex-direction: column; gap: 2px; font-size: 0.7rem; color: var(--text-secondary); }

.bim3d-issue-fields select, .bim3d-issue-fields input {
    padding: 4px 6px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.8125rem;
}

.bim3d-issue-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }

.bim3d-comments { margin-bottom: 8px; }
.bim3d-comment { font-size: 0.8125rem; padding: 6px 0; border-bottom: 1px solid var(--border); }
.bim3d-comment-event { color: var(--text-secondary); font-size: 0.75rem; }

.btn-sm-block { width: 100%; padding: 6px; }