/* ===== TIMELINE SCREEN STYLES ===== */

/* Timeline Header */
.timeline-header {
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-4) 0;
}

.timeline-header h2 {
    color: var(--gray-800);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.timeline-header p {
    color: var(--gray-600);
    font-size: var(--font-size-lg);
    margin-bottom: 0;
}

/* Timeline Controls */
.timeline-controls {
    display: flex;
    gap: var(--spacing-3);
    align-items: center;
    flex-wrap: wrap;
}

.timeline-controls .btn-group {
    box-shadow: var(--shadow-sm);
}

.timeline-controls .btn-group .btn {
    border-radius: 0;
}

.timeline-controls .btn-group .btn:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.timeline-controls .btn-group .btn:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

/* Temporal Navigation Controls */
.timeline-navigation-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.current-time-display {
    display: flex;
    align-items: center;
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.current-time-display .badge {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Time Input Controls */
.form-control[type="datetime-local"] {
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
}

.form-control[type="datetime-local"]:focus {
    border-color: var(--nebula-base);
    box-shadow: 0 0 0 0.2rem rgba(159, 137, 228, 0.25);
    outline: none;
}

/* Navigation Button Enhancements */
.timeline-navigation-controls .btn-group .btn {
    min-width: 60px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.timeline-navigation-controls .btn-outline-secondary {
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.timeline-navigation-controls .btn-outline-secondary:hover {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    border-color: var(--nebula-base);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.timeline-navigation-controls .btn-primary {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    border-color: var(--nebula-base);
    font-weight: 600;
}

.timeline-navigation-controls .btn-primary:hover {
    background: linear-gradient(135deg, var(--nebula-base) 0%, var(--nebula-dark) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Timeline Visualization Container */
.timeline-visualization-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    border: 1px solid var(--gray-200);
    min-height: 400px;
}

.timeline-chart-area {
    width: 100%;
    height: 350px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-normal);
}

.timeline-chart-area:hover {
    border-color: var(--nebula-base);
    background: linear-gradient(135deg, var(--nebula-accent) 0%, var(--white) 100%);
}

.timeline-chart-area::before {
    content: "Timeline visualization will appear here";
    color: var(--gray-500);
    font-style: italic;
    font-size: var(--font-size-lg);
}

/* Selected Alert Details */
.selected-alert-details .card {
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

.selected-alert-details .card:hover {
    box-shadow: var(--shadow-md);
}

.alert-content-display {
    padding: var(--spacing-3);
}

.alert-content-text {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    margin-top: var(--spacing-2);
    border-left: 4px solid var(--nebula-base);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Timeline Status Badge */
.badge-status {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
}

.badge-status i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Section Titles */
.section-title {
    color: var(--gray-800);
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3);
    padding-bottom: var(--spacing-2);
    border-bottom: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.section-title i {
    color: var(--nebula-base);
}

/* Event Selection Section */
.event-selection-section {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    border: 1px solid var(--gray-200);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

/* Event Type Badge */
.event-type-badge {
    background: linear-gradient(135deg, var(--iolite-light) 0%, var(--iolite-medium) 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    display: inline-block;
}

/* Attributes Container */
.attributes-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    align-items: center;
}

.form-check-inline {
    margin-right: var(--spacing-4);
    margin-bottom: var(--spacing-2);
}

.form-check-input {
    margin-right: var(--spacing-2);
}

.form-check-input:checked {
    background-color: var(--nebula-base);
    border-color: var(--nebula-base);
}

.form-check-input:focus {
    border-color: var(--nebula-light);
    box-shadow: 0 0 0 0.2rem rgba(159, 137, 228, 0.25);
}

.form-check-label {
    color: var(--gray-700);
    font-weight: 400;
    cursor: pointer;
}

/* Empty State */
.empty-state {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--gray-300);
    transition: all var(--transition-normal);
}

.empty-state:hover {
    border-color: var(--nebula-base);
    background: linear-gradient(135deg, var(--nebula-accent) 0%, var(--gray-50) 100%);
}

.empty-state i {
    color: var(--gray-400);
}

.empty-state h5 {
    color: var(--gray-600);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--gray-500);
    margin-bottom: 0;
}

/* Timeline Actions */
.timeline-actions {
    border-top: 1px solid var(--gray-200);
    padding-top: var(--spacing-4);
}

/* Timeline Visualization */
.timeline-visualization {
    width: 100%;
    min-height: 400px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-normal);
}

.timeline-visualization:hover {
    border-color: var(--nebula-base);
    background: linear-gradient(135deg, var(--nebula-accent) 0%, var(--white) 100%);
}

.timeline-visualization::before {
    content: "Interactive timeline will be displayed here";
    color: var(--gray-500);
    font-style: italic;
    font-size: var(--font-size-lg);
}

/* Chart Container */
.timeline-chart {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-md);
    background: var(--white);
}

.chart-reset-btn {
    position: absolute;
    top: var(--spacing-3);
    right: var(--spacing-3);
    z-index: 10;
    box-shadow: var(--shadow-md);
}

/* Graph View Container */
.graph-view-container {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    border: 1px solid var(--gray-200);
}

/* Table Enhancements */
.table thead th {
    background: linear-gradient(135deg, var(--night-medium) 0%, var(--night-dark) 100%);
    color: var(--white);
    font-weight: 600;
    border: none;
    padding: var(--spacing-3) var(--spacing-4);
}

.table tbody tr {
    transition: all var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--nebula-accent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.table tbody td {
    padding: var(--spacing-3) var(--spacing-4);
    vertical-align: middle;
    border-color: var(--gray-200);
}

/* Button Enhancements */
.btn-sm {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
}

.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* Card Enhancements */
.card {
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200);
}

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

.card-header {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-4) var(--spacing-6);
}

.card-header h3,
.card-header h5 {
    color: var(--white);
    margin-bottom: 0;
}

.card-body {
    padding: var(--spacing-6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline-header {
        text-align: center;
        margin-bottom: var(--spacing-4);
    }
    
    .timeline-controls {
        justify-content: center;
        margin-bottom: var(--spacing-4);
    }
    
    .timeline-controls .btn-group {
        flex-direction: column;
        width: 100%;
    }
    
    .timeline-controls .btn-group .btn {
        border-radius: var(--radius-md) !important;
        margin-bottom: var(--spacing-2);
    }
    
    .event-selection-section .row {
        flex-direction: column;
    }
    
    .event-selection-section .col-md-4,
    .event-selection-section .col-md-2 {
        width: 100%;
        margin-bottom: var(--spacing-3);
    }
    
    .attributes-container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .form-check-inline {
        margin-right: 0;
        margin-bottom: var(--spacing-3);
        width: 100%;
    }
    
    .timeline-chart-area,
    .timeline-visualization {
        height: 250px;
    }
    
    .timeline-chart {
        height: 300px;
    }
    
    .chart-reset-btn {
        position: static;
        margin-top: var(--spacing-3);
        width: 100%;
    }
    
    .card-body {
        padding: var(--spacing-4);
    }
    
    .section-title {
        font-size: var(--font-size-base);
        text-align: center;
    }
    
    .timeline-actions {
        text-align: center;
    }
    
    .btn-lg {
        width: 100%;
    }
}

@media (max-width: 576px) {
    .timeline-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .timeline-header p {
        font-size: var(--font-size-base);
    }
    
    .card-header {
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .card-body {
        padding: var(--spacing-3);
    }
    
    .event-selection-section {
        padding: var(--spacing-3);
    }
    
    .timeline-chart-area::before,
    .timeline-visualization::before {
        font-size: var(--font-size-base);
        text-align: center;
        padding: var(--spacing-4);
    }
}

/* Loading States */
.timeline-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
    color: var(--gray-500);
}

.timeline-loading::after {
    content: '';
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--nebula-base);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: var(--spacing-3);
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
    .timeline-chart-area,
    .timeline-visualization,
    .card,
    .table tbody tr {
        transition: none;
    }
    
    .badge-status i {
        animation: none;
    }
    
    .timeline-loading::after {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .timeline-chart-area,
    .timeline-visualization {
        border-color: #000000;
        border-width: 3px;
    }
    
    .event-type-badge {
        border: 2px solid #000000;
    }
    
    .badge-status {
        border: 2px solid #000000;
    }
}

/* Focus Styles for Accessibility */
.btn:focus-visible,
.form-control:focus-visible,
.form-check-input:focus-visible {
    outline: 2px solid var(--nebula-base);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .timeline-controls,
    .timeline-actions,
    .chart-reset-btn {
        display: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000000;
    }
    
    .card-header {
        background: #f0f0f0 !important;
        color: #000000 !important;
    }
}

/* Timeline Events Display */
.timeline-events-container {
    max-height: 600px;
    overflow-y: auto;
    padding-right: var(--spacing-2);
    /* Enhanced scrolling experience */
    scrollbar-width: thin;
    scrollbar-color: var(--nebula-base) var(--gray-100);
}

/* Custom scrollbar for webkit browsers */
.timeline-events-container::-webkit-scrollbar {
    width: 8px;
}

.timeline-events-container::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-md);
}

.timeline-events-container::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.timeline-events-container::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--nebula-base) 0%, var(--nebula-dark) 100%);
}

/* Smooth scrolling behavior */
.timeline-events-container {
    scroll-behavior: smooth;
}

.timeline-event-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.timeline-event-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--nebula-light);
}

.timeline-event-header {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--gray-100);
}

.event-title {
    color: var(--gray-800);
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
}

.event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    align-items: center;
}

.event-type {
    color: var(--gray-600);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.event-time {
    font-size: var(--font-size-sm);
}

.timeline-event-body {
    padding: var(--spacing-4);
}

.event-detail {
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--gray-700);
}

.event-detail strong {
    color: var(--gray-800);
    font-weight: 600;
}

.event-details-section {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-3);
    border: 1px solid var(--gray-200);
}

.event-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2);
    margin-top: var(--spacing-2);
}

.detail-item {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
}

.detail-item strong {
    color: var(--gray-800);
    font-weight: 500;
}

/* Status Badges */
.badge-status-active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-status-resolved {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-status-investigating {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-status-acknowledged {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-info {
    background: linear-gradient(135deg, var(--nebula-light) 0%, var(--nebula-base) 100%);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* Severity Badges */
.badge-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.badge-secondary {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* Timeline Chart Visualization */
.timeline-chart-content {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-4);
}

.timeline-axis {
    position: relative;
    width: 100%;
    height: 60px;
    border-bottom: 2px solid var(--gray-300);
    margin-bottom: var(--spacing-4);
}

.timeline-hours {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 100%;
    position: relative;
}

.hour-marker {
    position: relative;
    flex: 1;
    height: 100%;
    border-left: 1px solid var(--gray-200);
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.hour-marker:first-child {
    border-left: none;
}

.hour-label {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    font-weight: 500;
    transform: rotate(-45deg);
    transform-origin: center;
    white-space: nowrap;
    margin-bottom: var(--spacing-1);
}

.timeline-events-track {
    position: relative;
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
}

.timeline-event-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    transition: all var(--transition-normal);
    z-index: 10;
    border: 2px solid var(--white);
    box-shadow: var(--shadow-sm);
}

.timeline-event-dot:hover {
    transform: translateY(-50%) scale(1.5);
    z-index: 20;
    box-shadow: var(--shadow-lg);
}

.timeline-event-dot.danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.timeline-event-dot.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.timeline-event-dot.info {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.timeline-event-dot.secondary {
    background: linear-gradient(135deg, #6b7280 0%, #4b5563 100%);
}

.event-tooltip {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--night-dark);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 30;
    box-shadow: var(--shadow-lg);
    max-width: 200px;
    white-space: normal;
    text-align: center;
}

.timeline-event-dot:hover .event-tooltip {
    opacity: 1;
    visibility: visible;
    bottom: 25px;
}

.event-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--night-dark);
}

/* Timeline Chart Area Enhancements */
.timeline-chart-area {
    background: var(--white);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: visible;
}

.timeline-chart-area::before {
    display: none;
}

/* Responsive Timeline Events */
@media (max-width: 768px) {
    .timeline-events-container {
        max-height: 400px;
    }
    
    .timeline-event-header,
    .timeline-event-body {
        padding: var(--spacing-3);
    }
    
    .event-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-1);
    }
    
    .event-details-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-chart-content {
        padding: var(--spacing-2);
    }
    
    .timeline-axis {
        height: 40px;
    }
    
    .timeline-events-track {
        height: 150px;
    }
    
    .hour-label {
        font-size: 10px;
    }
    
    .timeline-event-dot {
        width: 8px;
        height: 8px;
    }
    
    .event-tooltip {
        max-width: 150px;
        font-size: 10px;
        padding: var(--spacing-1) var(--spacing-2);
    }
}

@media (max-width: 576px) {
    .timeline-hours {
        flex-wrap: wrap;
    }
    
    .hour-marker:nth-child(odd) {
        display: none;
    }
    
    .timeline-events-track {
        height: 120px;
    }
}