body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    color: #2c3e50;
}

.simulator-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.simulation-area {
    flex: 2;
    min-width: 300px;
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.controls-panel {
    flex: 1;
    min-width: 250px;
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.plot-container {
    width: 100%;
    height: 300px;
    background: #f9f9f9;
    border: 1px solid #ddd;
    margin-bottom: 20px;
}

.control-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

input[type="range"], select {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
}

.control-buttons {
    margin-top: 20px;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
    margin-right: 10px;
    margin-bottom: 10px;
}

button:hover {
    background-color: #2980b9;
}

.theory-section {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.footer-container {
    background-color: #390099;
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
}

.footer-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: bold;
}

@media (max-width: 768px) {
    .simulator-container {
        flex-direction: column;
    }
}