body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    margin: 0;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 2px solid #eaeaea;
    padding-bottom: 20px;
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.controls {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    align-items: end;
}

.param-group {
    display: flex;
    flex-direction: column;
}

label {
    margin-bottom: 5px;
    font-weight: 500;
    color: #2c3e50;
}

input {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

button {
    padding: 12px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.3s;
    grid-column: span 2;
}

button:hover {
    background: #2980b9;
}

#status {
    grid-column: span 2;
    padding: 10px;
    text-align: center;
    color: #7f8c8d;
}

.visualization {
    display: flex;
    justify-content: center;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

canvas {
    border: 1px solid #e0e0e0;
    background: white;
    box-shadow: 0 0 5px rgba(0,0,0,0.05);
}