body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    overflow: hidden;
}

.sidebar {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: 10px;
}

.menu-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

.menu {
    margin-top: 10px;
    background: white;
    padding: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: none;
    flex-direction: column;
    gap: 10px;
    min-width: 200px;
}

.menu-section button,
.menu-section a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: none;
    border: none;
    text-decoration: none;
    color: black;
    font-size: 14px;
    cursor: pointer;
}

.shortcut {
    margin-left: auto;
    font-size: 12px;
    color: gray;
}

.language-section,
.bg-section {
    margin-top: 10px;
}

.palette {
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

.color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid #ccc;
}

.topbar {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    background: white;
    padding: 6px 12px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
    align-items: center;
}

.topbar button {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 4px;
}

canvas {
    position: absolute;
    top: 50px;
    left: 0;
    width: 100vw;
    height: calc(100vh - 50px);
    background: #fff;
    display: block;
}