.timeline-full {
    position: relative;
}

.timeline-vertical-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-8) 0;
}

.timeline-vertical-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        var(--border-light) 5%, 
        var(--border-light) 95%, 
        transparent 100%);
    transform: translateX(-50%);
    z-index: 0;
}

.timeline-vertical-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--primary-red);
    border-radius: var(--radius-full);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.2);
}

.timeline-vertical-line::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--accent-gold);
    border-radius: var(--radius-full);
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 8px rgba(214, 158, 46, 0.3);
    animation: timelineVerticalEndPulse 2s ease-in-out infinite;
}

@keyframes timelineVerticalEndPulse {
    0%, 100% {
        box-shadow: 0 0 0 8px rgba(214, 158, 46, 0.3);
    }
    50% {
        box-shadow: 0 0 0 12px rgba(214, 158, 46, 0);
    }
}

.timeline-vertical-item {
    position: relative;
    margin-bottom: var(--spacing-16);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-8);
}

.timeline-vertical-item:last-child {
    margin-bottom: 0;
}

.timeline-vertical-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-vertical-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-vertical-item-icon {
    position: absolute;
    left: 50%;
    top: 20px;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-vertical-item-icon i {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 3px solid var(--primary-red);
    border-radius: var(--radius-full);
    color: var(--primary-red);
    font-size: var(--font-size-xl);
    box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3);
    transition: all var(--transition-base);
}

.timeline-vertical-item:hover .timeline-vertical-item-icon i {
    transform: scale(1.2) rotate(5deg);
    background: var(--primary-red);
    color: var(--white);
    box-shadow: 0 6px 20px rgba(196, 30, 58, 0.5);
}

.timeline-vertical-marker {
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--primary-red);
    border: 5px solid var(--bg-primary);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 6px rgba(196, 30, 58, 0.2);
    z-index: 2;
    transition: all var(--transition-base);
}

.timeline-vertical-item:hover .timeline-vertical-marker {
    transform: translateX(-50%) scale(1.3);
    background: var(--accent-gold);
    box-shadow: 0 0 0 10px rgba(214, 158, 46, 0.3);
}

.timeline-vertical-content {
    flex: 1;
    max-width: calc(50% - 60px);
    background: var(--bg-primary);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    border: 2px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all var(--transition-slow);
}

.timeline-vertical-item:nth-child(odd) .timeline-vertical-content {
    text-align: right;
}

.timeline-vertical-item:nth-child(even) .timeline-vertical-content {
    text-align: left;
}

.timeline-vertical-content::before {
    content: '';
    position: absolute;
    top: 28px;
    width: 0;
    height: 0;
    border-style: solid;
}

.timeline-vertical-item:nth-child(odd) .timeline-vertical-content::before {
    right: -16px;
    border-width: 12px 0 12px 16px;
    border-color: transparent transparent transparent var(--border-light);
}

.timeline-vertical-item:nth-child(even) .timeline-vertical-content::before {
    left: -16px;
    border-width: 12px 16px 12px 0;
    border-color: transparent var(--border-light) transparent transparent;
}

.timeline-vertical-content::after {
    content: '';
    position: absolute;
    top: 30px;
    width: 0;
    height: 0;
    border-style: solid;
}

.timeline-vertical-item:nth-child(odd) .timeline-vertical-content::after {
    right: -12px;
    border-width: 10px 0 10px 12px;
    border-color: transparent transparent transparent var(--bg-primary);
}

.timeline-vertical-item:nth-child(even) .timeline-vertical-content::after {
    left: -12px;
    border-width: 10px 12px 10px 0;
    border-color: transparent var(--bg-primary) transparent transparent;
}

.timeline-vertical-item:hover .timeline-vertical-content {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl), 0 20px 40px rgba(196, 30, 58, 0.15);
    border-color: var(--primary-red);
}

.timeline-vertical-year {
    display: inline-block;
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--primary-red);
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.1), rgba(214, 158, 46, 0.1));
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    border: 1px solid rgba(196, 30, 58, 0.2);
}

.timeline-vertical-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-tight);
}

.timeline-vertical-description {
    font-family: var(--font-serif);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

.timeline-vertical-item.memorial-timeline-item .timeline-vertical-marker.memorial-marker {
    background: var(--accent-gold);
    border-width: 6px;
    width: 32px;
    height: 32px;
    box-shadow: 0 0 0 8px rgba(214, 158, 46, 0.3);
    animation: memorialVerticalMarkerPulse 2s ease-in-out infinite;
}

@keyframes memorialVerticalMarkerPulse {
    0%, 100% {
        box-shadow: 0 0 0 8px rgba(214, 158, 46, 0.3);
    }
    50% {
        box-shadow: 0 0 0 16px rgba(214, 158, 46, 0);
    }
}

.timeline-vertical-item.memorial-timeline-item .timeline-vertical-content {
    border: 3px solid var(--accent-gold);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(214, 158, 46, 0.2);
}

.timeline-vertical-item.memorial-timeline-item .timeline-vertical-year {
    color: var(--accent-gold);
    background: linear-gradient(135deg, rgba(214, 158, 46, 0.15), rgba(196, 30, 58, 0.1));
    border-color: rgba(214, 158, 46, 0.3);
}

.timeline-vertical-item.memorial-timeline-item .timeline-vertical-title {
    color: var(--accent-gold);
}

.timeline-vertical-item.memorial-timeline-item .timeline-vertical-item-icon i {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.timeline-vertical-item.memorial-timeline-item:hover .timeline-vertical-item-icon i {
    background: var(--accent-gold);
    color: var(--white);
}

@media (max-width: 768px) {
    .timeline-vertical-line {
        left: 24px;
    }
    
    .timeline-vertical-line::before,
    .timeline-vertical-line::after {
        left: 50%;
    }
    
    .timeline-vertical-item {
        flex-direction: row !important;
        padding-left: var(--spacing-16);
    }
    
    .timeline-vertical-item:nth-child(even) {
        flex-direction: row !important;
    }
    
    .timeline-vertical-item-icon {
        left: 24px;
        transform: translateX(-50%);
    }
    
    .timeline-vertical-item-icon i {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .timeline-vertical-item:hover .timeline-vertical-item-icon i {
        transform: scale(1.2) rotate(5deg);
    }
    
    .timeline-vertical-marker {
        left: 24px;
        transform: translateX(-50%);
    }
    
    .timeline-vertical-item:hover .timeline-vertical-marker {
        transform: translateX(-50%) scale(1.3);
    }
    
    .timeline-vertical-content {
        max-width: 100%;
        text-align: left !important;
    }
    
    .timeline-vertical-item:nth-child(odd) .timeline-vertical-content {
        text-align: left !important;
    }
    
    .timeline-vertical-content::before {
        left: -16px !important;
        right: auto !important;
        border-width: 12px 16px 12px 0 !important;
        border-color: transparent var(--border-light) transparent transparent !important;
    }
    
    .timeline-vertical-content::after {
        left: -12px !important;
        right: auto !important;
        border-width: 10px 12px 10px 0 !important;
        border-color: transparent var(--bg-primary) transparent transparent !important;
    }
}

[data-theme="dark"] .timeline-vertical-content {
    background: var(--bg-secondary);
    border-color: var(--border-dark);
}

[data-theme="dark"] .timeline-vertical-content::after {
    border-color: transparent var(--bg-secondary) transparent transparent;
}

[data-theme="dark"] .timeline-vertical-item:nth-child(odd) .timeline-vertical-content::after {
    border-color: transparent transparent transparent var(--bg-secondary);
}

[data-theme="dark"] .timeline-vertical-line {
    background: linear-gradient(180deg, 
        transparent 0%, 
        var(--border-medium) 5%, 
        var(--border-medium) 95%, 
        transparent 100%);
}

[data-theme="dark"] .timeline-vertical-line::before {
    border-color: var(--bg-secondary);
}

[data-theme="dark"] .timeline-vertical-line::after {
    border-color: var(--bg-secondary);
}

[data-theme="dark"] .timeline-vertical-marker {
    border-color: var(--bg-secondary);
}

[data-theme="dark"] .timeline-vertical-item-icon i {
    background: var(--bg-secondary);
}