.main-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.sidebar {
    width: 300px;
    display: flex;
    padding: 8px;
    flex-direction: column;
    overflow-y: auto;
    height: 520px;
}

.center {
    width: 600px;
    height: 400px;
    background: #ddd;
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.bottom-bar {
    height: 100px;
    background: #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
}

.wrapper {
    display: flex;
    flex: 1;
    justify-content: center;
    align-items: center;
}

.konva-button {
    padding: 10px 20px;
    background-color: #2271b1;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.konva-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    margin: 0 !important;
    max-width: 100% !important;
    overflow: auto;
    background: rgba(0, 0, 0, 0.5);
}

.konva-modal-content {
    background: white;
    margin: 7vh auto;
    padding: 20px;
    width: 90%;
    border-radius: 8px;
    position: relative;
}

.konva-close {
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.black {
    color: black;
}
.red {
    color: red;
}
.blue {
    color: blue;
}
.green {
    color: green;
}