.vtl-bdf25146-wrapper {
    position: relative;
    padding: 40px 0;
    width: 100%;
    overflow: hidden;
}

.vtl-bdf25146-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Continuous Center Line */
.vtl-bdf25146-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    transform: translateX(-50%);
    background-color: #3498db;
    z-index: 1;
}

/* Timeline Item Structural Layout */
.vtl-bdf25146-item {
    position: relative;
    width: 50%;
    margin-bottom: 50px;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.vtl-bdf25146-item.vtl-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Left-aligned event items */
.vtl-bdf25146-item.vtl-bdf25146-left {
    left: 0;
    padding-right: 40px;
    text-align: right;
}

/* Right-aligned event items */
.vtl-bdf25146-item.vtl-bdf25146-right {
    left: 50%;
    padding-left: 40px;
    text-align: left;
}

/* Markers placement on the timeline line */
.vtl-bdf25146-marker-container {
    position: absolute;
    top: 20px;
    z-index: 3;
}

.vtl-bdf25146-item.vtl-bdf25146-left .vtl-bdf25146-marker-container {
    right: -20px;
}

.vtl-bdf25146-item.vtl-bdf25146-right .vtl-bdf25146-marker-container {
    left: -20px;
}

.vtl-bdf25146-marker {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #3498db;
    color: #fff;
    font-weight: bold;
    border: 3px solid #fff;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.vtl-bdf25146-marker svg {
    width: 16px;
    height: 16px;
    fill: #fff;
}

/* Content cards */
.vtl-bdf25146-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    display: inline-block;
    text-align: left;
    width: 100%;
    box-sizing: border-box;
}

.vtl-bdf25146-card-title {
    margin: 0 0 5px 0;
    font-size: 1.25rem;
    font-weight: 700;
}

.vtl-bdf25146-card-date {
    display: inline-block;
    font-size: 0.85rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.vtl-bdf25146-card-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #555;
}

/* Responsive Styles for Mobile */
@media (max-width: 767px) {
    .vtl-bdf25146-line {
        left: 20px;
    }
    
    .vtl-bdf25146-item {
        width: 100%;
        margin-bottom: 40px;
    }
    
    .vtl-bdf25146-item.vtl-bdf25146-left,
    .vtl-bdf25146-item.vtl-bdf25146-right {
        left: 0;
        padding-left: 50px;
        padding-right: 0;
        text-align: left;
    }
    
    .vtl-bdf25146-item.vtl-bdf25146-left .vtl-bdf25146-marker-container,
    .vtl-bdf25146-item.vtl-bdf25146-right .vtl-bdf25146-marker-container {
        left: 0;
        right: auto;
    }
}