/* Gantt Page CSS - Refactored for UI Design System */
.gantt-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* KPI Dashboard */
.gantt-kpi-dashboard {
    display: flex;
    gap: 15px;
    margin-bottom: 12px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 10px 15px;
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.kpi-icon.blue { background: rgba(75, 166, 176, 0.1); color: var(--brand-teal); }
.kpi-icon.orange { background: rgba(255, 152, 0, 0.1); color: var(--warning); }
.kpi-icon.purple { background: rgba(156, 39, 176, 0.1); color: #9c27b0; }
.kpi-icon.gray { background: rgba(158, 158, 158, 0.1); color: var(--text-muted); }

.kpi-info {
    display: flex;
    flex-direction: column;
}

.kpi-value { 
    font-size: 1.5rem; 
    font-weight: bold; 
    color: var(--text-primary);
}
.kpi-label { 
    font-size: 0.8rem; 
    color: var(--text-secondary); 
    font-weight: normal; 
    margin-left: 5px; 
}
.kpi-subtext { 
    font-size: 0.8rem; 
    margin-top: 5px; 
}

.progress-ring {
    position: relative;
    width: 60px;
    height: 60px;
}
.progress-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.progress-ring .circle-bg { fill: none; stroke: var(--border-color); stroke-width: 3.8; }
.progress-ring .circle { fill: none; stroke: var(--brand-teal); stroke-width: 3.8; stroke-linecap: round; transition: stroke-dasharray 0.5s ease; }
.progress-text { 
    position: absolute; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    font-size: 0.9rem; 
    font-weight: bold; 
    color: var(--text-primary);
}

/* Gantt Split Pane */
.gantt-split-pane {
    display: flex;
    flex: 1;
    border-radius: var(--radius);
    overflow: hidden;
    height: 500px; /* Base height, adjust via JS or max-height */
}

/* Data Table Pane */
.gantt-table-pane {
    width: 500px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    background: var(--bg-card);
}

.gantt-data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.85rem;
}

.gantt-data-table th, .gantt-data-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    color: var(--text-primary);
    box-sizing: border-box;
    background: var(--bg-body); /* Ensure all cells have background in separate mode */
}

.gantt-data-table th {
    background: var(--bg-body);
    position: sticky;
    top: 0;
    z-index: 2;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-muted);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.75rem;
}

.gantt-data-table .group-header {
    text-align: center;
    border-left: 1px solid var(--border-color);
    background: var(--bg-body);
    z-index: 3; /* Keep above sub-header's shadow */
}
.gantt-data-table .col-name, 
.gantt-data-table .col-status, 
.gantt-data-table .col-progress {
    z-index: 3; /* Keep first row elements above */
}
.gantt-data-table .sub-header {
    font-weight: normal;
    color: var(--text-secondary);
    border-left: 1px solid var(--border-color);
    background: var(--bg-body);
    z-index: 2;
    box-shadow: 0 -5px 0 var(--bg-body); /* Fill any pixel gap above */
    position: sticky;
}

/* Timeline Pane */
.gantt-timeline-pane {
    flex: 1;
    overflow-x: auto;
    overflow-y: auto;
    position: relative;
    background: var(--bg-body);
}

/* Legend */
.gantt-legend {
    display: flex;
    gap: 20px;
    padding: 15px 24px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}
.legend-item {
    display: flex;
    align-items: center;
}
.legend-color {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    border-radius: 2px;
    margin-right: 6px;
    color: white;
    font-size: 0.65rem;
    font-weight: bold;
    line-height: 1;
}
.bg-planned { background: var(--brand-teal); opacity: 0.7; }
.bg-actual-done { background: var(--success); }
.bg-actual-progress { background: var(--warning); }
.bg-actual-delayed { background: var(--error); }
.bg-actual-blocked { background: #9c27b0; }
.bg-actual-todo { background: var(--text-muted); }

/* Badges override for Gantt Status Pills */
.gantt-status-pill {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
    display: inline-block;
}
.gantt-status-pill.in-progress { background-color: rgba(255, 152, 0, 0.1); color: var(--warning); border: 1px solid var(--warning); }
.gantt-status-pill.done { background-color: rgba(0, 230, 118, 0.1); color: var(--success); border: 1px solid var(--success); }
.gantt-status-pill.delayed { background-color: rgba(244, 67, 54, 0.1); color: var(--error); border: 1px solid var(--error); }