/*
 * Issue #14404 (Sub Tasks - Phase 3) — task list / grid hierarchy visuals.
 * Renders parent/child task relationships in the list & dashboard to-do views
 * consistent with the approved mockup (screenshot8): a left expand/collapse
 * chevron, indented direct children with connector lines, a "N direct
 * sub-tasks" caption, plus the shared legend and inherited-visibility note.
 */

/* ---- Expand/collapse chevron gutter on parent rows ----
   The chevron lives inside the first bordered segment (the status cell) so it
   sits within the row border, with a consistent gutter across rows. */
.input-action-item .input-group-text .task-hierarchy-toggle,
.input-action-item .input-group-text .task-hierarchy-toggle-spacer {
    flex: 0 0 18px;
    width: 18px;
    height: 22px;
    align-self: center;
    padding: 0;
    margin: 0 0.4rem 0 -0.15rem;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.input-action-item .input-group-text .task-hierarchy-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    cursor: pointer;
}

.input-action-item .input-group-text .task-hierarchy-toggle:hover,
.input-action-item .input-group-text .task-hierarchy-toggle:focus {
    color: #343a40;
    outline: none;
}

.input-action-item .input-group-text .task-hierarchy-toggle i {
    transition: transform 0.15s ease-in-out;
}

.input-action-item .input-group-text .task-hierarchy-toggle:not(.collapsed) i.fa-chevron-right {
    transform: rotate(90deg);
}

/* ---- Collapsible direct-children container ---- */
.task-hierarchy-children {
    width: 100%;
    padding-top: 0.25rem;
    margin-top: 0.35rem;
    border-top: 1px dashed #e4e7ea;
}

/* ---- Child row: indented with connector line ---- */
.input-action-item.task-hierarchy-child-row {
    position: relative;
    width: calc(100% - 2.25rem);
    margin-left: 2.25rem;
    margin-bottom: 0.5rem !important;
    padding-left: 0.5rem;
}

.task-hierarchy-children .task-hierarchy-child-row::before {
    content: "";
    position: absolute;
    left: -0.85rem;
    top: -0.65rem;
    bottom: 50%;
    width: 1px;
    background: #ced4da;
}

.task-hierarchy-children .task-hierarchy-child-row::after {
    content: "";
    position: absolute;
    left: -0.85rem;
    top: 50%;
    width: 0.85rem;
    height: 1px;
    background: #ced4da;
}

/* connect consecutive children with a continuous vertical line */
.task-hierarchy-children .task-hierarchy-child-row:not(:last-of-type)::before {
    bottom: -0.5rem;
}

/* ---- Keep an open child row's dropdown above sibling rows ---- */
.task-hierarchy-children .task-hierarchy-child-row {
    z-index: 1;
}

.task-hierarchy-children .task-hierarchy-child-row:hover,
.task-hierarchy-children .task-hierarchy-child-row:focus-within {
    z-index: 1060;
}

.task-hierarchy-children .dropdown-menu {
    z-index: 1061;
}

/* ---- Read-only inherited child ---- */
.task-hierarchy-child-row.task-inherited-readonly {
    opacity: 0.9;
}

.task-hierarchy-child-row.task-inherited-readonly .action-item-title {
    background-color: #f8f9fa;
}

.task-hierarchy-child-row .task-inherited-flag {
    color: #adb5bd;
    margin-left: 0.35rem;
}

/* ---- "N direct sub-tasks" caption ---- */
.task-hierarchy-caption {
    margin-left: 2.25rem;
    padding: 0.15rem 0 0.25rem;
    font-size: 0.8125rem;
    color: #2f80ed;
}

.task-hierarchy-caption .fa {
    margin-right: 0.35rem;
}

/* ---- Inherited-visibility note ---- */
.task-hierarchy-note {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    background: #eaf3ff;
    border: 1px solid #cfe2ff;
    border-radius: 0.35rem;
    color: #2c4a6b;
    font-size: 0.85rem;
}

.task-hierarchy-note .fa {
    margin-top: 2px;
    color: #2f80ed;
}

/* ---- Legend strip ---- */
.task-hierarchy-legend {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    padding: 0.75rem 1rem;
    margin-top: 0.75rem;
    background: #f7f8fa;
    border: 1px solid #e9ecef;
    border-radius: 0.35rem;
    font-size: 0.8125rem;
    color: #6c757d;
}

.task-hierarchy-legend .legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.task-hierarchy-legend .legend-meeting {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #f0ad4e;
    color: #fff;
    font-weight: 600;
    font-size: 0.7rem;
}

.task-hierarchy-legend .legend-completed {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #2c3e50;
    color: #fff;
    font-size: 0.7rem;
}

.task-hierarchy-legend .legend-connector {
    display: inline-block;
    position: relative;
    width: 26px;
    height: 16px;
}

.task-hierarchy-legend .legend-connector::before {
    content: "";
    position: absolute;
    left: 7px;
    top: -1px;
    height: 10px;
    width: 1px;
    background: #adb5bd;
}

.task-hierarchy-legend .legend-connector::after {
    content: "";
    position: absolute;
    left: 7px;
    top: 8px;
    width: 14px;
    height: 1px;
    background: #adb5bd;
}