* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 2rem;
    text-align: center;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

#intro {
    text-align: center;
    margin-bottom: 3rem;
}

.experiment-container {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.experiment-container h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.experiment-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

canvas {
    border: 2px solid #2c3e50;
    border-radius: 5px;
    background-color: #fff;
    width: 100%;
    max-width: 800px;
    height: 300px;
}

.controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

input[type="range"] {
    width: 200px;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #2c3e50;
    color: white;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.control-group {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 5px;
    margin: 0.5rem;
    min-width: 200px;
}

.control-group h4 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.slider-container label {
    min-width: 80px;
}

.slider-container span {
    min-width: 30px;
    text-align: right;
}

input[type="range"] {
    flex-grow: 1;
}