body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
}

.form-container {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.form-container input[type="text"],
.form-container input[type="date"] {
    width: 60%;
    padding: 10px;
    margin-right: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-container button {
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.form-container button:hover {
    background-color: #218838;
}

#timeline {
    position: relative;
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 20px;
    padding-left: 20px;
    border-left: 2px solid #ddd;
}

.timeline-node {
    margin: 20px 0;
    position: relative;
}

.timeline-node::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 5px;
    width: 10px;
    height: 10px;
    background-color: #007bff;
    border-radius: 50%;
}

.timeline-node .date {
    font-weight: bold;
    color: #007bff;
}