/* NS Power Engineering Portfolio Management - Styles */

:root {
    --primary-color: #0056b3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-gray: #f8f9fa;
    --border-color: #dee2e6;
}

body {
    background-color: #f5f6fa;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Stats Cards */
.stats-card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    transition: transform 0.2s;
}

.stats-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.12);
}

.clickable-card {
    cursor: pointer !important;
    transition: transform 0.2s, box-shadow 0.2s;
}

.clickable-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.clickable-card:active {
    transform: translateY(-1px);
}

.stats-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

/* Navigation Tabs */
.nav-tabs {
    border-bottom: 2px solid var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--secondary-color);
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    background-color: var(--light-gray);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: white;
    border-bottom: 3px solid var(--primary-color);
}

.nav-tabs .nav-link i {
    margin-right: 0.5rem;
}

/* Hierarchy Table */
.hierarchy-table {
    font-size: 14px;
}

.hierarchy-table thead th {
    background-color: var(--light-gray);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 12px;
    color: var(--secondary-color);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 10;
    user-select: none;
}

.hierarchy-table thead th[data-sort] {
    transition: background-color 0.2s;
}

.hierarchy-table thead th[data-sort]:hover {
    background-color: #e0e0e0;
}

.sort-indicator {
    color: var(--primary-color);
    font-size: 10px;
}

.hierarchy-table tbody tr {
    transition: background-color 0.2s;
    border-bottom: 1px solid #f0f0f0;
}

.hierarchy-table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Overdue row highlighting */
.overdue-row {
    background-color: #fff5f5 !important;
    border-left: 4px solid #ef4444 !important;
}

.overdue-row:hover {
    background-color: #fee2e2 !important;
}

/* Hierarchy Indentation */
.hierarchy-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.25rem 0;
}

.hierarchy-item.has-children {
    cursor: pointer;
}

.hierarchy-item.has-children:hover .work-package-name {
    color: var(--primary-color);
    text-decoration: underline;
}

.hierarchy-item:not(.has-children) {
    cursor: default;
}

.hierarchy-indent {
    display: inline-block;
}

.hierarchy-toggle {
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--secondary-color);
    transition: transform 0.2s;
}

.hierarchy-toggle.expanded {
    transform: rotate(90deg);
}

.hierarchy-toggle.empty {
    visibility: hidden;
}

.work-package-name {
    font-weight: 500;
    color: #2c3e50;
}

.work-package-id {
    color: var(--secondary-color);
    font-size: 11px;
    margin-left: 0.5rem;
}

/* Category Badges */
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.category-badge i {
    font-size: 14px;
}

.category-interconnection {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.category-transformer {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(245, 158, 11, 0.3);
}

.category-switch {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.3);
}

.category-new-sub {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.category-transmission {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

.category-routine {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(107, 114, 128, 0.3);
}

.category-complex {
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(20, 184, 166, 0.3);
}

.category-uncategorized {
    background: linear-gradient(135deg, #d1d5db 0%, #9ca3af 100%);
    color: #374151;
    box-shadow: 0 2px 4px rgba(209, 213, 219, 0.3);
}

/* Type Badges */
.type-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.type-phase {
    background-color: #e3f2fd;
    color: #1976d2;
}

.type-task {
    background-color: #f3e5f5;
    color: #7b1fa2;
}

.type-milestone {
    background-color: #fff3e0;
    color: #f57c00;
}

.type-pc-design {
    background-color: #e8f5e9;
    color: #388e3c;
}

.type-substation-design {
    background-color: #fce4ec;
    color: #c2185b;
}

.type-transmission-design {
    background-color: #e0f2f1;
    color: #00796b;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge i {
    margin-right: 0.25rem;
    font-size: 10px;
}

.status-not-started {
    background-color: #f0f0f0;
    color: #666;
}

.status-in-progress {
    background-color: #d4edda;
    color: #155724;
}

.status-scheduled {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-on-hold {
    background-color: #fff3cd;
    color: #856404;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-90 {
    background-color: #cce5ff;
    color: #004085;
}

.status-backlog {
    background-color: #f8d7da;
    color: #721c24;
}

/* OpenProject project-level statuses */
.status-on-track {
    background-color: #d4edda;
    color: #155724;
}

.status-off-track {
    background-color: #f8d7da;
    color: #721c24;
}

.status-at-risk {
    background-color: #fff3cd;
    color: #856404;
}

.status-complete {
    background-color: #d4edda;
    color: #155724;
}

/* Progress Bars */
.progress-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.progress {
    height: 8px;
    background-color: #e9ecef;
    border-radius: 4px;
    flex: 1;
}

.progress-bar {
    background: linear-gradient(90deg, #28a745 0%, #20c997 100%);
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 12px;
    font-weight: 600;
    min-width: 35px;
}

/* Board View */
.board-column {
    height: 600px;
    margin-bottom: 1rem;
}

.board-column .card-header {
    font-weight: 600;
    padding: 0.75rem;
}

.board-items {
    overflow-y: auto;
    max-height: 520px;
    padding: 0.5rem;
}

.board-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    cursor: move;
    transition: all 0.2s;
}

.board-item:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

.board-item-title {
    font-weight: 500;
    margin-bottom: 0.25rem;
    font-size: 14px;
}

.board-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--secondary-color);
}

/* Priority Indicators */
.priority-indicator {
    width: 4px;
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
}

.priority-immediate {
    background-color: var(--danger-color);
}

.priority-high {
    background-color: var(--warning-color);
}

.priority-normal {
    background-color: var(--info-color);
}

.priority-low {
    background-color: var(--secondary-color);
}

/* Assignee Avatar */
.assignee-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* Filters */
.form-label {
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

.form-select, .form-control {
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    font-size: 14px;
}

.form-select:focus, .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 86, 179, 0.25);
}

/* Gantt Chart */
#ganttCanvas {
    width: 100%;
    max-width: 100%;
}

.gantt-tooltip {
    position: absolute;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
    z-index: 1000;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* Category Filter Buttons */
.category-filter-btn {
    border: 2px solid transparent;
    background-color: #f8f9fa;
    color: #495057;
    font-weight: 600;
    transition: all 0.2s;
    padding: 0.375rem 0.75rem;
}

.category-filter-btn:hover {
    background-color: #e9ecef;
    transform: translateY(-1px);
}

.category-filter-btn.active {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 4px rgba(0, 86, 179, 0.3);
}

.category-btn-interconnection.active {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #10b981;
}

.category-btn-transformer.active {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    border-color: #f59e0b;
}

.category-btn-switch.active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    border-color: #ef4444;
}

.category-btn-new-sub.active {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-color: #3b82f6;
}

.category-btn-transmission.active {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    border-color: #8b5cf6;
}

.category-btn-routine.active {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    border-color: #6b7280;
}

.category-btn-complex.active {
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    border-color: #14b8a6;
}

/* AI Insights Card */
.ai-insights-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
}

.ai-insights-card .card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    color: white;
}

.ai-insights-card .card-header h6 {
    color: white;
}

.ai-insights-content {
    color: white;
}

.insight-card {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    height: 100%;
    display: flex;
    gap: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.insight-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    flex-shrink: 0;
}

.insight-content {
    flex: 1;
    color: #333;
}

.insight-content h6 {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #666;
    text-transform: uppercase;
}

.insight-content p {
    font-size: 14px;
    margin: 0;
    line-height: 1.5;
    color: #333;
}

.ai-prompt {
    background: rgba(255,255,255,0.95);
    border-radius: 8px;
    padding: 1rem;
    color: #333;
}

.ai-prompt strong {
    color: #105297;
}

.ai-prompt ul {
    font-size: 13px;
    padding-left: 1.5rem;
}

.ai-prompt li {
    margin-bottom: 0.25rem;
    color: #666;
}

/* Accordion customization */
.accordion-button {
    background-color: #f8f9fa;
    font-weight: 600;
}

.accordion-button:not(.collapsed) {
    background-color: #e9ecef;
    color: #000;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(0,0,0,.125);
}

.accordion-body {
    padding: 1rem;
    background-color: #fff;
}

/* Chart Cards */
.card-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

.card-header h6 {
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 14px;
}

.card-header i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Responsive Design */
@media (max-width: 768px) {
    .stats-card {
        margin-bottom: 1rem;
    }
    
    .board-column {
        margin-bottom: 1rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.5rem 1rem;
        font-size: 14px;
    }
    
    .hierarchy-table {
        font-size: 12px;
    }
}

/* Loading Spinner */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--secondary-color);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 1rem;
}

/* Detail Modal */
.modal-header {
    background-color: var(--light-gray);
    border-bottom: 2px solid var(--border-color);
}

.detail-section {
    margin-bottom: 1.5rem;
}

.detail-section h6 {
    color: var(--secondary-color);
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.detail-item {
    padding: 0.5rem;
    background-color: var(--light-gray);
    border-radius: 4px;
}

.detail-label {
    font-size: 11px;
    color: var(--secondary-color);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 14px;
    font-weight: 500;
    color: #2c3e50;
}