body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: #f5f5f5;
}

.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    background: #1b1b1b;
    padding: 20px;
    box-sizing: border-box;
}

.sidebar h2 {
    margin-top: 0;
    color: #ff6a00;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar a {
    color: #fff;
    text-decoration: none;
    padding: 10px;
    background: #2a2a2a;
    border-radius: 6px;
}

.sidebar a:hover {
    background: #ff6a00;
}

.content {
    flex: 1;
    padding: 30px;
}

.design-element.selected {
    outline: 2px solid #ff6a00;
}