:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #00bcd4;
    --secondary-color: #ff4081;
    --panel-bg: #1e1e1e;
    --border-color: #333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

h1 {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.1rem;
    color: #aaa;
}

main {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    flex: 1;
}

.canvas-container {
    flex: 1;
    min-width: 300px;
    background-color: #000;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    height: 600px;
}

canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.overlay-info {
    position: absolute;
    top: 10px;
    left: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-family: monospace;
    pointer-events: none;
}

.controls {
    flex: 0 0 300px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.control-group {
    background-color: var(--panel-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.control-group h3 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 5px;
}

label {
    display: block;
    margin-top: 10px;
    font-size: 0.9rem;
    color: #ccc;
}

input[type="range"] {
    width: 100%;
    margin: 5px 0;
    accent-color: var(--accent-color);
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    margin-right: 5px;
    margin-bottom: 5px;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #444;
}

button.highlight-btn {
    background-color: var(--accent-color);
    color: #000;
    font-weight: bold;
}

button.highlight-btn:hover {
    background-color: #00acc1;
}

span[id$="-val"] {
    float: right;
    font-family: monospace;
    color: var(--accent-color);
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: #777;
}

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

    .controls {
        width: 100%;
        flex: none;
    }

    .canvas-container {
        height: 400px;
    }
}