* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Tahoma, sans-serif;
}

body {
    display: flex;
    height: 100vh;
    background-color: #050505;
    color: #fff;
    overflow: hidden;
}

.sidebar {
    width: 280px;
    background: #0a0a10;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-right: 1px solid #1f1f2e;
    z-index: 10;
    box-shadow: 5px 0 15px rgba(0,0,0,0.5);
    overflow-y: auto;
}

.sidebar h2 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #00ffcc;
    text-shadow: 0 0 10px rgba(0,255,204,0.5);
}

.sidebar button {
    background: #141420;
    color: #aaa;
    border: 1px solid #2a2a40;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.sidebar button:hover {
    background: #00ffcc;
    color: #000;
    border-color: #00ffcc;
    box-shadow: 0 0 15px rgba(0,255,204,0.4);
}

.main-stage {
    flex: 1;
    position: relative;
    background: #000;
}

#stage-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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