/* Modern Dark Theme for Tracktion - Enhanced Readability */

:root {
    /* Primary Colors */
    --primary-bg: #0f1419;
    --secondary-bg: #1a1f2e;
    --card-bg: #242938;
    --surface-bg: #2d3446;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b8c5d6;
    --text-muted: #8b9bb8;
    --text-disabled: #6b7a99;
    
    /* Border Colors */
    --border-primary: #3a4158;
    --border-secondary: #4a5568;
    --border-accent: #5a6b8a;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    /* Status Colors */
    --status-todo: #6b7280;
    --status-progress: #3b82f6;
    --status-review: #f59e0b;
    --status-done: #10b981;
    
    /* Priority Colors */
    --priority-low: #10b981;
    --priority-medium: #f59e0b;
    --priority-high: #ef4444;
    --priority-urgent: #dc2626;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);

}

/* Base Styles */
body {
    background-color: var(--primary-bg) !important;
    color: var(--text-primary) !important;
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    font-weight: 400;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
}

p, span, div {
    color: var(--text-secondary);
}

/* Card Styles */
.card {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-primary) !important;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background-color: var(--surface-bg) !important;
    border-bottom: 1px solid var(--border-primary) !important;
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Form Controls */
.form-control, .form-select {
    background-color: var(--surface-bg) !important;
    border: 2px solid var(--border-primary) !important;
    border-radius: 8px;
    color: var(--text-primary) !important;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    background-color: var(--surface-bg) !important;
    border-color: var(--accent-blue) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    color: var(--text-primary) !important;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted) !important;
    opacity: 0.8;
}

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Modal Styles */
.modal-content {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-primary) !important;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background-color: var(--surface-bg) !important;
    border-bottom: 1px solid var(--border-primary) !important;
    border-radius: 16px 16px 0 0 !important;
    padding: 1.5rem 2rem;
}

.modal-title {
    color: var(--text-primary);
    font-weight: 600;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    background-color: var(--surface-bg) !important;
    border-top: 1px solid var(--border-primary) !important;
    border-radius: 0 0 16px 16px !important;
    padding: 1.5rem 2rem;
}

/* Button Styles */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

.btn-primary:hover {
    background-color: #2563eb;
    border-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background-color: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
    transform: translateY(-1px);
}

.btn-outline-danger {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.btn-outline-danger:hover {
    background-color: var(--accent-red);
    border-color: var(--accent-red);
    color: white;
}

.btn-success {
    background-color: var(--accent-green);
    border-color: var(--accent-green);
}

.btn-warning {
    background-color: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: #1f2937;
}

/* Navigation */
.navbar {
    background-color: var(--secondary-bg) !important;
    border-bottom: 1px solid var(--border-primary) !important;
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--accent-blue) !important;
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-blue) !important;
    background-color: rgba(59, 130, 246, 0.1);
}

/* Kanban Board Styles */
.kanban-column {
    background-color: var(--card-bg);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    min-height: 500px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.2s ease;
}

.kanban-column.drag-over {
    background-color: var(--surface-bg);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-lg), 0 0 0 3px rgba(59, 130, 246, 0.15);
    transform: scale(1.02);
}

.kanban-column-header {
    background-color: var(--surface-bg);
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-primary);
    font-weight: 600;
    color: var(--text-primary);
}

.task-card {
    background-color: var(--surface-bg);
    border: 1px solid var(--border-primary);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.task-card:hover {
    background-color: var(--card-bg);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-accent);
}

.task-card.dragging {
    opacity: 0.7;
    transform: rotate(3deg) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Priority Colors */
.priority-high {
    border-left: 4px solid var(--priority-high);
}

.priority-medium {
    border-left: 4px solid var(--priority-medium);
}

.priority-low {
    border-left: 4px solid var(--priority-low);
}

.priority-urgent {
    border-left: 4px solid var(--priority-urgent);
    background-color: rgba(220, 38, 38, 0.1) !important;
}

/* Status Colors */
.status-todo {
    border-left: 4px solid var(--status-todo);
}

.status-progress {
    border-left: 4px solid var(--status-progress);
}

.status-review {
    border-left: 4px solid var(--status-review);
}

.status-done {
    border-left: 4px solid var(--status-done);
    opacity: 0.85;
}

/* Tag Styles */
.tag {
    display: inline-block;
    background-color: var(--accent-blue);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin: 0.125rem;
    box-shadow: var(--shadow-sm);
}

.tag-suggestion {
    display: inline-block;
    background-color: var(--surface-bg);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin: 0.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-primary);
}

.tag-suggestion:hover {
    background-color: var(--accent-blue);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Table Styles */
.table-dark {
    background-color: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 12px;
    overflow: hidden;
}

.table-dark thead th {
    background-color: var(--surface-bg);
    border-color: var(--border-primary);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1rem 1.5rem;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.table-dark tbody tr {
    border-color: var(--border-primary);
    transition: all 0.2s ease;
}

.table-dark tbody tr:hover {
    background-color: var(--surface-bg);
    transform: scale(1.01);
}

.table-dark td {
    border-color: var(--border-primary);
    vertical-align: middle;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
}

.table-responsive {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* Button group styling for table actions */
.btn-group-sm .btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    border-radius: 6px;
    margin: 0 0.125rem;
}

/* Table row priority indicators */
.table tbody tr.priority-high {
    border-left: 4px solid var(--priority-high);
    background-color: rgba(220, 38, 38, 0.1);
}

.table tbody tr.priority-medium {
    border-left: 4px solid var(--priority-medium);
    background-color: rgba(220, 38, 38, 0.1);
}

.table tbody tr.priority-low {
    border-left: 4px solid var(--priority-low);
    background-color: rgba(220, 38, 38, 0.1);
}

.table tbody tr.priority-urgent {
    border-left: 4px solid var(--priority-urgent);
    background-color: rgba(220, 38, 38, 0.1);
}

/* Status indicators in table */
.table tbody tr.status-todo {
    border-left: 4px solid var(--status-todo);
}

.table tbody tr.status-progress {
    border-left: 4px solid var(--status-progress);
}

.table tbody tr.status-review {
    border-left: 4px solid var(--status-review);
}

.table tbody tr.status-done {
    border-left: 4px solid var(--status-done);
    opacity: 0.85;
}

/* Overdue task styling - subtle red tint */
.table tbody tr.table-danger {
    background-color: rgba(239, 68, 68, 0.08) !important;
    border-left: 4px solid var(--accent-red);
}

.table tbody tr.table-danger:hover {
    background-color: rgba(239, 68, 68, 0.12) !important;
}

/* Sortable Table Headers */
.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.sortable:hover {
    background-color: var(--border-accent) !important;
}

.sortable i {
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.sortable:hover i {
    opacity: 1;
}

.sortable[data-sort="status"] i.fa-sort-up,
.sortable[data-sort="status"] i.fa-sort-down,
.sortable[data-sort="priority"] i.fa-sort-up,
.sortable[data-sort="priority"] i.fa-sort-down,
.sortable[data-sort="assigned_to"] i.fa-sort-up,
.sortable[data-sort="assigned_to"] i.fa-sort-down,
.sortable[data-sort="due_date"] i.fa-sort-up,
.sortable[data-sort="due_date"] i.fa-sort-down {
    opacity: 1;
    color: var(--accent-blue);
}

/* Dashboard Stats */
.stats-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.stats-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-accent);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.stats-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

/* Alternative Dashboard Stats Design */
.stats-card-alt {
    background-color: var(--card-bg);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    min-height: 140px;
}

.stats-card-alt:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-accent);
}

.stats-card-alt .stats-icon {
    position: absolute;
    top: 67%;
    left: 12%;
    transform: translate(-50%, -50%);
    font-size: 10rem;
    opacity: 0.075;
    color: var(--text-secondary);
    z-index: 1;
}

.stats-card-alt .stats-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.stats-card-alt .stats-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: auto;
    text-align: left;
    line-height: 1.3;
    position: absolute;
}

.stats-card-alt .stats-number-alt {
    font-size: 6rem;
    font-weight: 800;
    text-align: right;
    line-height: 1;
    margin-top: auto;
}

.stats-card-alt .stats-number-alt.text-primary {
    color: var(--accent-blue) !important;
}

.stats-card-alt .stats-number-alt.text-success {
    color: var(--accent-green) !important;
}

.stats-card-alt .stats-number-alt.text-warning {
    color: var(--accent-yellow) !important;
}

.stats-card-alt .stats-number-alt.text-info {
    color: var(--accent-blue) !important;
}

/* Dashboard Stat Cards - Clickable */
.dashboard-stat-card {
    transition: all 0.3s ease;
}

.dashboard-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-primary);
}

.dashboard-stat-card.active-filter {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25);
}

/* Dashboard Person Items - Clickable */
.dashboard-person-item {
    transition: all 0.3s ease;
}

.dashboard-person-item:hover {
    background-color: var(--card-bg) !important;
    transform: translateX(4px);
}

.dashboard-person-item.active-filter {
    background-color: rgba(13, 110, 253, 0.1) !important;
    border-color: var(--accent-primary) !important;
    box-shadow: 0 0 0 2px rgba(13, 110, 253, 0.25);
}

/* Badge Styles */
.badge {
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
}

.badge.bg-secondary {
    background-color: var(--status-todo) !important;
}

.badge.bg-primary {
    background-color: var(--accent-blue) !important;
}

.badge.bg-warning {
    background-color: var(--accent-yellow) !important;
    color: #1f2937 !important;
}

.badge.bg-success {
    background-color: var(--accent-green) !important;
}

.badge.bg-danger {
    background-color: var(--accent-red) !important;
}

/* Dropdown Styles */
.dropdown-menu {
    background-color: var(--surface-bg) !important;
    border: 1px solid var(--border-primary) !important;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
}

.dropdown-item {
    color: var(--text-secondary) !important;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--card-bg) !important;
    color: var(--text-primary) !important;
}

/* Alert Styles */
.alert {
    background-color: var(--surface-bg) !important;
    border: 1px solid var(--border-primary) !important;
    color: var(--text-secondary) !important;
    border-radius: 10px;
    padding: 1rem 1.5rem;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1) !important;
    border-color: var(--accent-green) !important;
    color: var(--accent-green) !important;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1) !important;
    border-color: var(--accent-yellow) !important;
    color: var(--accent-yellow) !important;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1) !important;
    border-color: var(--accent-red) !important;
    color: var(--accent-red) !important;
}

/* List Group */
.list-group-item {
    background-color: var(--surface-bg) !important;
    border: 1px solid var(--border-primary) !important;
    color: var(--text-secondary) !important;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.list-group-item:hover {
    background-color: var(--card-bg) !important;
    transform: translateX(4px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border-secondary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-accent);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-primary);
    border-radius: 50%;
    border-top-color: var(--accent-blue);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Focus States */
.btn:focus, .form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
}

/* Animation for task cards */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.task-card, .task-item {
    animation: fadeIn 0.3s ease-out;
}

/* Date Input Styling */
input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(0.8);
}

/* Tooltip Styles */
.tooltip-inner {
    background-color: var(--surface-bg) !important;
    color: var(--text-primary) !important;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.tooltip.bs-tooltip-top .tooltip-arrow::before {
    border-top-color: var(--surface-bg) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .kanban-column {
        margin-bottom: 1.5rem;
        min-height: 300px;
    }
    
    .task-card {
        padding: 1rem;
    }
    
    .stats-card {
        margin-bottom: 1rem;
        padding: 1.5rem;
    }
    
    .table-dark td, .table-dark th {
        padding: 0.75rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
    }
}

/* Additional Enhancements */
.text-muted {
    color: var(--text-muted) !important;
}

.text-primary {
    color: var(--accent-blue) !important;
}

.text-success {
    color: var(--accent-green) !important;
}

.text-warning {
    color: var(--accent-yellow) !important;
}

.text-danger {
    color: var(--accent-red) !important;
}

/* Hover effects for interactive elements */
.btn, .nav-link, .dropdown-item, .list-group-item {
    transition: all 0.2s ease;
}

/* Enhanced focus indicators for accessibility */
.btn:focus-visible, .form-control:focus-visible, .nav-link:focus-visible {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}