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body {
font-family: Arial, sans-serif;
background-color: #f4f4f4;
margin: 0;
padding: 20px;
}
h1 {
text-align: center;
color: #333;
}
.chart-container {
width: 100%;
max-width: 800px;
margin: 0 auto;
}
.controls {
display: flex;
justify-content: space-between;
margin-bottom: 20px;
}
.control-group {
display: flex;
flex-direction: column;
}
label {
margin-bottom: 5px;
font-weight: bold;
}
input[type="number"], input[type="text"] {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
}
button {
padding: 10px 15px;
background-color: #28a745;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
}
button:hover {
background-color: #218838;
}
.error {
color: red;
font-size: 0.9em;
}
.success {
color: green;
font-size: 0.9em;
}