body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffffff;
    padding: 10px 20px;
    border-bottom: 1px solid #ddd;
}
header img {
    height: 80px;
}
nav {
    display: flex;
    gap: 20px;
}
nav a {
    text-decoration: none;
    color: black;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background-color 0.3s;
}
nav a:hover, nav a.active {
    background-color: #ddd;
}
.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
}
.search-container {
    display: flex;
    justify-content: center;
    padding: 20px;
    gap: 10px;
}
.search-container input[type="text"],
.search-container select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}
.content {
    padding: 20px;
}
.timeline-item {
    display: flex;
    border: 1px solid #ddd;
    padding: 20px;
    margin-bottom: 20px;
    background-color: #ffffff;
}
.timeline-item img {
    width: 150px;
    height: 100px;
    background-color: #ddd;
    margin-right: 20px;
}
.timeline-item h3 {
    margin: 0;
}
.timeline-item p {
    color: #666;
}
.timeline-container {
    width: 100%;
    height: 300px;
    background-color: #eee;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin: 20px 0;
}