body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    max-width: 60%;
    margin: 0 auto;
    padding: 20px;
    background-color: #1a1a1a;
    color: #e0e0e0;
}
h1 {
    color: #c62828;
    text-align: center;
    margin-bottom: 30px;
}
.container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.controls {
    flex: 1;
    min-width: 300px;
    background-color: #2d2d2d;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}
.results {
    flex: 2;
    min-width: 400px;
    background-color: #2d2d2d;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}
.form-group {
    margin-bottom: 15px;
}
label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #bb86fc;
}
input[type="number"] {
    width: 100%;
    padding: 8px;
    background-color: #424242;
    border: 1px solid #616161;
    border-radius: 4px;
    color: #e0e0e0;
}
button {
    background-color: #c62828;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
    margin-top: 10px;
}
button:hover {
    background-color: #b71c1c;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid #616161;
}
th {
    background-color: #424242;
    color: #bb86fc;
}
tr:hover {
    background-color: #424242;
}
.chart-container {
    margin-top: 30px;
    height: 300px;
}
.summary {
    margin-top: 20px;
    padding: 15px;
    background-color: #424242;
    border-radius: 4px;
}
.summary h3 {
    margin-top: 0;
    color: #bb86fc;
}
.summary-item {
    margin-bottom: 8px;
}
.note {
    font-size: 0.9em;
    color: #9e9e9e;
    margin-top: 10px;
}