/* ONA Timeline MicroSim Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: aliceblue;
    padding: 10px;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #1A237E 0%, #303F9F 100%);
    color: white;
    padding: 20px 30px;
    text-align: center;
}

h1 {
    font-size: 1.8em;
    margin-bottom: 6px;
}

.subtitle {
    font-size: 1.05em;
    opacity: 0.9;
}

/* Controls row: filters + nav buttons */
.controls {
    padding: 12px 20px;
    background: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    padding: 7px 16px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.3s ease;
    color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.filter-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.25);
}

.filter-btn.active {
    outline: 3px solid rgba(0,0,0,0.2);
    outline-offset: 1px;
    transform: scale(1.05);
}

/* Navigation buttons */
.nav-buttons {
    display: flex;
    gap: 6px;
}

.nav-btn {
    padding: 7px 14px;
    border: 1px solid #bbb;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    transition: all 0.2s;
}

.nav-btn:hover {
    background: #303F9F;
    color: white;
    border-color: #303F9F;
}

/* Timeline container */
#timeline {
    padding-left: 80px;
    padding-right: 80px;
    overflow: hidden;
}

/* Override vis-timeline clipping for edge events */
.vis-timeline {
    overflow: visible !important;
}

.vis-panel.vis-center {
    overflow: visible !important;
}

.vis-item .vis-item-overflow {
    overflow: visible !important;
}

/* vis-timeline tooltip styling */
.vis-tooltip {
    background: #2c3e50 !important;
    color: white !important;
    padding: 10px 15px !important;
    border-radius: 8px !important;
    font-size: 13px !important;
    max-width: 320px !important;
    line-height: 1.5 !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
    box-sizing: border-box !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3) !important;
    z-index: 1000 !important;
}

.vis-tooltip div {
    max-width: 300px !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    white-space: normal !important;
}

/* Group labels */
.vis-labelset .vis-label {
    font-weight: 600;
    color: #333;
    font-size: 13px;
}

/* Item styling */
.vis-item {
    border-radius: 6px !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
}

.vis-item.vis-selected {
    outline: 3px solid #D4880F !important;
    outline-offset: 1px;
}

/* Info panel below timeline */
.info-panel {
    padding: 20px 30px;
    background: #f8f9fa;
    border-top: 2px solid #dee2e6;
}

.usage-instructions {
    background: #FFF8E7;
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 18px;
    border-left: 4px solid #D4880F;
    font-size: 14px;
}

.usage-instructions h4 {
    color: #856404;
    margin-bottom: 8px;
}

.usage-instructions ul {
    list-style-position: inside;
    color: #555;
}

.usage-instructions li {
    margin: 4px 0;
}

/* Legend */
.legend {
    margin-bottom: 18px;
}

.legend h3 {
    color: #1A237E;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.legend-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: white;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.legend-color {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    flex-shrink: 0;
}

.legend-label {
    font-weight: 600;
    color: #333;
    font-size: 13px;
}

/* Event detail panel */
.event-details {
    background: white;
    padding: 22px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-top: 14px;
    display: none;
}

.event-details.visible {
    display: block;
}

.event-details h3 {
    color: #1A237E;
    margin-bottom: 8px;
    font-size: 1.3em;
}

.event-date {
    color: #666;
    font-style: italic;
    margin-bottom: 12px;
    font-size: 1em;
}

.event-category-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 12px;
    color: white;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
}

.event-description {
    line-height: 1.6;
    color: #333;
    font-size: 1em;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 1.3em; }
    .subtitle { font-size: 0.9em; }
    .controls { flex-direction: column; }
    #timeline {
        padding-left: 20px;
        padding-right: 20px;
    }
    .legend-items { grid-template-columns: 1fr 1fr; }
    .info-panel { padding: 15px; }
}