.history {
    background-color: transparent;
}

.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-purple), var(--accent-lavender));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 100%;
    margin-bottom: 6rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    width: 50px;
    height: 50px;
    background-color: var(--accent-lavender);
    border: 4px solid var(--primary-black);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary-dark);
    transition: var(--transition);
    box-shadow: 0 0 15px rgba(123, 63, 228, 0.4);
}

.timeline-content {
    width: 42%;
    background: var(--secondary-black);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(123, 63, 228, 0.2);
    position: relative;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.timeline-item:nth-child(odd) {
    justify-content: flex-start;
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: 0;
    border-left: 5px solid var(--accent-purple);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 0;
    border-right: 5px solid var(--accent-purple);
    text-align: right;
}

.timeline-content:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 40px rgba(123, 63, 228, 0.3);
    background: linear-gradient(135deg, rgba(123, 63, 228, 0.1) 0%, var(--secondary-black) 100%);
    border-color: rgba(123, 63, 228, 0.5);
}

.timeline-item:hover .timeline-marker {
    transform: translateX(-50%) scale(1.3);
    background: linear-gradient(135deg, var(--accent-purple), var(--light-purple));
    box-shadow: 0 0 25px rgba(123, 63, 228, 0.8);
}

.timeline-date {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: var(--accent-lavender);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.timeline-item:nth-child(even) .timeline-date {
    justify-content: flex-end;
}

.timeline-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

.timeline-desc {
    color: var(--text-gray);
    font-size: 1.1rem;
    line-height: 1.7;
}

@media (max-width: 992px) {
    .timeline::before {
        left: 30px;
        transform: none;
    }

    .timeline-marker {
        left: 30px;
        transform: none;
        width: 40px;
        height: 40px;
    }

    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
        text-align: left !important;
    }

    .timeline-item {
        justify-content: flex-start !important;
    }

    .timeline-item:nth-child(even) .timeline-content {
        border-right: none;
        border-left: 5px solid var(--accent-purple);
    }

    .timeline-item:nth-child(even) .timeline-date {
        justify-content: flex-start;
    }

    .timeline-item:hover .timeline-marker {
        transform: scale(1.3);
    }
}