/* ==========================================================================
   Gantt Chart Styles
   ========================================================================== */

.split-view {
    display: flex;
    height: 100%;
    overflow: hidden;
}

/* ==========================================================================
   WBS List Panel
   ========================================================================== */

.wbs-list-panel {
    width: 40%;
    min-width: 400px;
    max-width: 600px;
    border-right: 2px solid var(--border-dark);
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
    overflow: hidden;
}

.wbs-header {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    height: 72px;
    flex-shrink: 0;
}

.wbs-header-row {
    display: flex;
    align-items: center;
}

.wbs-header-row-1 {
    height: 36px;
    padding: 0 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.wbs-header-row-2 {
    height: 36px;
    padding: 0 12px;
}

.wbs-header-label {
    font-size: 13px;
    font-weight: 600;
}

.wbs-col {
    padding: 8px 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.wbs-col-name {
    flex: 1;
    min-width: 150px;
}

.wbs-col-type {
    width: 80px;
}

.wbs-col-points {
    width: 50px;
    text-align: center;
}

.wbs-col-assignee {
    width: 100px;
}

.wbs-col-start {
    width: 100px;
}

.wbs-col-end {
    width: 100px;
}

.wbs-col-progress {
    width: 60px;
    text-align: center;
}

.wbs-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

/* Task Row */
.wbs-task {
    display: flex;
    align-items: center;
    padding: 0 12px;
    height: 40px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.15s;
}

.wbs-task:hover {
    background-color: var(--bg-tertiary);
}

.wbs-task.selected {
    background-color: rgba(37, 99, 235, 0.1);
}

.wbs-task.dragging {
    opacity: 0.5;
}

.wbs-task.drag-over {
    background-color: rgba(37, 99, 235, 0.15);
    border-left: 3px solid var(--primary-color);
}

.wbs-task[draggable="true"] {
    cursor: move;
}

/* Task Hierarchy */
.wbs-task-name {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 150px;
    gap: 4px;
}

.wbs-task-indent {
    display: inline-block;
    width: 20px;
}

.wbs-task-toggle {
    width: 16px;
    height: 16px;
    border: none;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 12px;
}

.wbs-task-toggle:hover {
    color: var(--text-primary);
}

.wbs-task-toggle.collapsed::before {
    content: '▶';
}

.wbs-task-toggle.expanded::before {
    content: '▼';
}

.wbs-task-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.wbs-task-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Task Type */
.wbs-task-type {
    width: 80px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    border-radius: 4px;
}

.task-type-epic {
    background-color: #dbeafe;
    color: #1e40af;
}

.task-type-story {
    background-color: #dcfce7;
    color: #166534;
}

.task-type-task {
    background-color: #e0e7ff;
    color: #4338ca;
}

.task-type-bug {
    background-color: #fee2e2;
    color: #991b1b;
}

.task-type-folder {
    background-color: #fef3c7;
    color: #92400e;
}

/* Story Points */
.wbs-task-points {
    width: 50px;
    text-align: center;
    font-weight: 500;
    color: var(--primary-color);
}

/* Assignee */
.wbs-task-assignee {
    width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
}

/* Dates */
.wbs-task-date {
    width: 100px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* Progress */
.wbs-task-progress {
    width: 60px;
    text-align: center;
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--success-color);
    transition: width 0.3s;
}

.progress-bar.warning {
    background-color: var(--warning-color);
}

.progress-bar.danger {
    background-color: var(--danger-color);
}

.progress-percentage {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

/* ==========================================================================
   Gantt Chart Panel
   ========================================================================== */

.gantt-chart-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-secondary);
    overflow: hidden;
}

.gantt-controls {
    height: 36px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 12px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.gantt-controls-left {
    display: flex;
    gap: 16px;
}

.gantt-controls-right {
    display: flex;
    gap: 16px;
    margin-left: auto;
}

.gantt-control-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
}

.gantt-control-item input[type="checkbox"] {
    cursor: pointer;
}

.gantt-control-item span {
    cursor: pointer;
}

.progress-mode-select {
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
}

.gantt-header {
    height: 36px;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    flex-shrink: 0;
}

.gantt-timeline {
    display: flex;
    height: 100%;
}

.gantt-timeline-cell {
    flex: 1;
    min-width: 40px;
    border-right: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 500;
}

.gantt-timeline-cell.today {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-weight: 700;
}

.gantt-timeline-cell.saturday {
    background-color: #eff6ff;
    color: #3b82f6;
    font-weight: 600;
}

.gantt-timeline-cell.sunday-holiday {
    background-color: #fef2f2;
    color: #ef4444;
    font-weight: 600;
}

.gantt-canvas-container {
    flex: 1;
    position: relative;
    overflow: auto;
}

#gantt-canvas {
    position: absolute;
    top: 0;
    left: 0;
}

#gantt-svg {
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
}

/* Gantt Task Bar */
.gantt-task-bar {
    position: absolute;
    height: 24px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 8px;
    font-size: 11px;
    font-weight: 500;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
    overflow: hidden;
}

.gantt-task-bar:hover {
    filter: brightness(1.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.gantt-task-bar.task-todo {
    background-color: #94a3b8;
}

.gantt-task-bar.task-in-progress {
    background-color: #3b82f6;
}

.gantt-task-bar.task-review {
    background-color: #f59e0b;
}

.gantt-task-bar.task-done {
    background-color: #10b981;
}

.gantt-task-bar.task-delayed {
    background-color: var(--danger-color);
}

/* Progress within task bar */
.gantt-task-progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.3);
    transition: width 0.3s;
}

/* Milestone */
.gantt-milestone {
    position: absolute;
    width: 0;
    height: 0;
    border: 12px solid transparent;
    transform: rotate(45deg);
    cursor: pointer;
}

.gantt-milestone.milestone-default {
    border-bottom-color: #8b5cf6;
}

.gantt-milestone.milestone-complete {
    border-bottom-color: var(--success-color);
}

.gantt-milestone.milestone-overdue {
    border-bottom-color: var(--danger-color);
}

/* Inazuma Line (Lightning Line) */
.gantt-inazuma-line {
    stroke: #ef4444;
    stroke-width: 2;
    fill: none;
    stroke-dasharray: 5, 5;
}

.gantt-ideal-line {
    stroke: #94a3b8;
    stroke-width: 1;
    stroke-dasharray: 3, 3;
    fill: none;
}

/* Dependencies */
.gantt-dependency {
    stroke: #64748b;
    stroke-width: 1.5;
    fill: none;
    marker-end: url(#arrow);
}

/* Today line */
.gantt-today-line {
    stroke: var(--primary-color);
    stroke-width: 2;
    stroke-dasharray: 4, 4;
}

/* Sprint marker */
.gantt-sprint-marker {
    fill: rgba(37, 99, 235, 0.05);
    stroke: var(--primary-color);
    stroke-width: 1;
    stroke-dasharray: 2, 2;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    .wbs-list-panel {
        width: 50%;
        min-width: 300px;
    }

    .wbs-col-start,
    .wbs-col-end {
        display: none;
    }
}

@media (max-width: 768px) {
    .split-view {
        flex-direction: column;
    }

    .wbs-list-panel {
        width: 100%;
        max-width: none;
        border-right: none;
        border-bottom: 2px solid var(--border-dark);
        height: 50%;
    }

    .gantt-chart-panel {
        height: 50%;
    }
}