/* Timeline Specific Styles */
.timeline-hero {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-medium) 100%);
}

.timeline-hero h1 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.timeline-explanation-full {
    background-color: var(--bg-medium);
    padding: 40px 0;
}

.legend {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin: 30px 0;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.legend-color {
    width: 30px;
    height: 30px;
    border-radius: 4px;
    border: 2px solid var(--border);
}

.note {
    text-align: center;
    font-style: italic;
    color: var(--text-secondary);
    margin-top: 20px;
}

/* Timeline Container */
.container-full {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.timeline-container {
    padding: 60px 0;
}

.timeline-dual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    position: relative;
}

.timeline-dual::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, 
        var(--timeline-1) 0%, 
        var(--accent) 50%, 
        var(--timeline-2) 100%);
    transform: translateX(-50%);
    opacity: 0.3;
}

/* Timeline Streams */
.timeline-stream {
    position: relative;
}

.timeline-stream h2 {
    text-align: center;
    margin-bottom: 40px;
    position: sticky;
    top: 80px;
    background-color: var(--bg-dark);
    padding: 15px;
    border-radius: 8px;
    z-index: 10;
}

.timeline-stream.chronological h2 {
    color: var(--timeline-1);
    border: 2px solid var(--timeline-1);
}

.timeline-stream.understanding h2 {
    color: var(--timeline-2);
    border: 2px solid var(--timeline-2);
}

/* Timeline Events */
.timeline-event {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
}

.event-marker {
    position: absolute;
    left: 0;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid var(--timeline-1);
    background-color: var(--bg-dark);
}

.timeline-stream.understanding .event-marker {
    border-color: var(--timeline-2);
}

.timeline-event::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 24px;
    bottom: -40px;
    width: 2px;
    background-color: var(--border);
}

.timeline-event:last-child::before {
    display: none;
}

.event-content {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.3s;
}

.timeline-stream.chronological .event-content {
    border-left: 3px solid var(--timeline-1);
}

.timeline-stream.understanding .event-content {
    border-left: 3px solid var(--timeline-2);
}

.event-content:hover {
    background-color: var(--bg-medium);
    border-color: var(--accent);
    transform: translateX(-5px);
}

.event-date {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.event-content h3 {
    color: var(--accent);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.event-content p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* Timeline Analysis */
.timeline-analysis {
    background-color: var(--bg-medium);
    padding: 60px 0;
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.analysis-card {
    background-color: var(--bg-dark);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.analysis-card h3 {
    color: var(--accent);
    margin-bottom: 15px;
}

.analysis-card p {
    color: var(--text-secondary);
    margin: 0;
}

.analysis-card em {
    color: var(--success);
    font-style: normal;
    font-weight: 600;
}

.insight-box {
    margin-top: 50px;
    padding: 40px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-dark) 100%);
    border-radius: 12px;
    border: 2px solid var(--accent);
    text-align: center;
}

.insight-box h3 {
    color: var(--accent);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.insight-box p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.insight-box strong {
    color: var(--success);
}

/* Future Timeline Section */
.future-timeline {
    padding: 60px 0;
}

.future-timeline ul {
    list-style: none;
    margin-top: 30px;
}

.future-timeline li {
    padding: 15px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-secondary);
}

.future-timeline li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 968px) {
    .timeline-dual {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .timeline-dual::before {
        display: none;
    }

    .legend {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .timeline-hero h1 {
        font-size: 2rem;
    }

    .timeline-event {
        padding-left: 30px;
    }

    .event-marker {
        width: 12px;
        height: 12px;
    }

    .analysis-grid {
        grid-template-columns: 1fr;
    }
}