* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
    min-height: 100vh;
    padding: 20px;
}
.container {
    max-width: 900px;
    margin: 0 auto;
}
.header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
}
.header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}
.header p {
    font-size: 1.1em;
    opacity: 0.9;
}
.journey-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 50px;
}
.journey-btn {
    padding: 10px 20px;
    border: 2px solid white;
    background: transparent;
    color: white;
    cursor: pointer;
    border-radius: 20px;
    font-size: 1em;
    transition: all 0.3s;
    font-weight: bold;
}
.journey-btn:hover {
    background: white;
    color: #667eea;
}
.journey-btn.active {
    background: white;
    color: #667eea;
}
.timeline-container {
    background: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}
.timeline {
    position: relative;
    padding: 20px 0;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: #667eea;
}
.timeline-item {
    margin-bottom: 50px;
}
.timeline-item:nth-child(odd) {
    padding-right: 55%;
    text-align: right;
}
.timeline-item:nth-child(even) {
    padding-left: 55%;
    text-align: left;
}
.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: white;
    border: 4px solid #667eea;
    border-radius: 50%;
    top: 0;
    z-index: 10;
}
.timeline-content {
    background: #f0f0f0;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}
.timeline-item:nth-child(even) .timeline-content {
    border-left: none;
    border-right: 4px solid #764ba2;
}
.timeline-date {
    font-weight: bold;
    color: #667eea;
    margin-bottom: 5px;
}
.timeline-title {
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 8px;
}
.timeline-description {
    color: #666;
    line-height: 1.5;
}
@media (max-width: 768px) {
    .timeline::before {
        left: 0;
    }
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: 40px;
        padding-right: 0;
        text-align: left;
    }
    .timeline-dot {
        left: 0;
    }
    .timeline-content {
        border-right: none;
        border-left: 4px solid #667eea;
    }
}