/* ==========================================================================
   Project Planner - WBS Tree Styles
   ========================================================================== */

/* --- Project Title Bar --- */
#project-title-bar {
    background: var(--primary-bg);
    border-bottom: 2px solid var(--primary-light);
    padding: 10px var(--sp-4) 8px;
}

#project-title-bar.hidden {
    display: none;
}

#project-title-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

#project-title-path {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin-top: 3px;
}

/* --- Project Info Bar --- */
#project-info-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    padding: var(--sp-3) var(--sp-4);
    background: var(--primary-bg);
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

#project-info-bar.hidden {
    display: none;
}

.proj-info-group {
    display: flex;
    align-items: baseline;
    gap: var(--sp-1);
}

.proj-info-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
}

.proj-info-value {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--gray-800);
}

.proj-info-sep {
    color: var(--gray-300);
    font-size: var(--font-size-md);
}

.proj-info-team {
    flex: 1;
}

.team-badge {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 2px 6px;
    margin: 1px;
    background: var(--gray-100);
    color: var(--gray-700);
    cursor: default;
}

.team-badge-leader {
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* --- Main Content Layout --- */
#main-content {
    display: flex;
}

#main-content.hidden {
    display: none !important;
}

/* --- Tree Table --- */
.wbs-tree {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: var(--font-size-md);
}

.wbs-tree thead th {
    position: sticky;
    top: 0;
    background: #fff;
    border-bottom: 2px solid var(--gray-200);
    padding: var(--sp-3) var(--sp-3);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
    text-align: left;
    z-index: 10;
    white-space: nowrap;
}

.wbs-tree thead th.text-center {
    text-align: center;
}

/* Column widths */
.col-tree-check { width: 32px; text-align: center; }
.col-tree-name { width: auto; }
.col-tree-start { width: 100px; }
.col-tree-end { width: 100px; }
.col-tree-resources { width: 200px; }

/* --- Tree Rows --- */
.tree-row {
    border-bottom: 1px solid var(--gray-100);
    transition: background 0.1s;
}

.tree-row:hover {
    background: var(--gray-50);
}

/* Selected row highlight (checkbox checked) */
.tree-row--selected,
.tree-row--selected.tree-level-0,
.tree-row--selected.tree-level-1,
.tree-row--selected.tree-level-2,
.tree-row--selected.tree-level-3 {
    background: var(--primary-bg) !important;
}

.tree-row--selected:hover {
    background: var(--primary-light) !important;
}

.tree-row td {
    padding: 6px var(--sp-3);
    vertical-align: middle;
    word-wrap: break-word;
}

/* Depth-based striping — subtle alternating shade so rows line up visually
   with their corresponding dates/resources across the wide row. */
.tree-level-0 { background: var(--primary-bg); }
.tree-level-0 .tree-name { font-weight: 700; }
.tree-level-0:hover { background: var(--primary-light); }

.tree-level-1 { background: #dde2ea; }
.tree-level-2 { background: #ffffff; }
.tree-level-3 { background: #f1f3f6; }
.tree-level-4 { background: #e5e8ee; }
.tree-level-5 { background: #d8dce4; }
.tree-level-6 { background: #ccd1db; }
.tree-level-7,
.tree-level-8,
.tree-level-9 { background: #c0c6d2; }

.tree-parent .tree-name-parent { font-weight: 600; }

.tree-leaf {
    border-left: 2px solid var(--primary-light);
}

/* --- Tree Name Cell Components --- */
.tree-indent {
    display: inline-block;
    flex-shrink: 0;
}

.tree-toggle {
    display: inline-block;
    width: 16px;
    cursor: pointer;
    font-size: 9px;
    color: var(--gray-400);
    text-align: center;
    user-select: none;
    transition: color 0.1s;
}

.tree-toggle:hover {
    color: var(--gray-700);
}

.tree-no-toggle {
    display: inline-block;
    width: 16px;
}

.tree-path {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    margin-right: var(--sp-2);
    font-variant-numeric: tabular-nums;
}

.tree-name {
    color: var(--gray-800);
}

.tree-leaf-badge {
    display: inline-block;
    font-size: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    background: var(--primary-light);
    padding: 0 var(--sp-1);
    margin-left: var(--sp-2);
    vertical-align: middle;
}

/* --- Checkbox --- */
.tree-checkbox {
    width: 14px;
    height: 14px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* --- Inline Date Editing --- */
.cell-date-editable {
    cursor: pointer;
    font-variant-numeric: tabular-nums;
    color: var(--gray-700);
    transition: background 0.1s;
}

.cell-date-editable:hover {
    background: var(--primary-light);
}

.cell-date-editable.cell-editing {
    padding: 0 var(--sp-2);
    background: #fff;
}

.tree-date-input {
    width: 100%;
    padding: var(--sp-1) var(--sp-2);
    border: 1px solid var(--primary);
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    outline: none;
    background: #fff;
}

/* --- Resource Badges --- */
.resource-badge {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 2px 5px;
    margin: 1px;
    background: var(--primary-light);
    color: var(--primary-dark);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.1s;
}

.resource-badge:hover {
    background: var(--primary);
    color: #fff;
}

/* --- Assign Button --- */
.btn-assign {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: 1px solid var(--gray-300);
    background: #fff;
    color: var(--gray-500);
    font-size: var(--font-size-md);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.1s;
    line-height: 1;
}

.btn-assign:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary-dark);
}

/* --- Tree Toolbar --- */
.tree-toolbar {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-3);
    border-bottom: 1px solid var(--gray-200);
    background: #fff;
}

.tree-toolbar .btn {
    font-size: var(--font-size-sm);
    padding: var(--sp-1) var(--sp-3);
}

.tree-toolbar-sep {
    width: 1px;
    height: 16px;
    background: var(--gray-200);
}

/* --- Tree Container --- */
#tree-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

/* --- Bulk Action Bar --- */
#bulk-action-bar {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-2) var(--sp-3);
    background: var(--primary-bg);
    border-top: 2px solid var(--primary);
    position: sticky;
    bottom: 0;
    z-index: 20;
}

#bulk-action-bar.hidden {
    display: none;
}

.bulk-info {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--primary-dark);
    flex: 1;
}