body {
    font-family: Arial, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #2c3e50;
    border-bottom: 3px solid #3498db;
    padding-bottom: 10px;
}

.upload-section {
    margin: 20px 0;
    padding: 20px;
    background-color: #ecf0f1;
    border-radius: 5px;
}

.info-box {
    background-color: #e8f4f8;
    border-left: 4px solid #3498db;
    padding: 15px;
    margin: 20px 0;
}

button {
    background-color: #27ae60;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
}

button:hover {
    background-color: #229954;
}

button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

.file-input {
    margin: 10px 0;
}

#status {
    margin: 20px 0;
    padding: 10px;
    border-radius: 5px;
    display: none;
}

#status.loading {
    display: block;
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    color: #856404;
}

#status.success {
    display: block;
    background-color: #d4edda;
    border: 1px solid #28a745;
    color: #155724;
}

#status.error {
    display: block;
    background-color: #f8d7da;
    border: 1px solid #dc3545;
    color: #721c24;
}

#output {
    margin-top: 20px;
}

#plot {
    max-width: 100%;
    margin-top: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.code-section {
    margin: 20px 0;
}

textarea {
    width: 100%;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #f8f9fa;
}

.results {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    font-family: monospace;
}