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

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: #f0f0f0;
}

.toolbar {
    display: flex;
    gap: 20px;
    padding: 15px;
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.tool-group {
    display: flex;
    gap: 5px;
    padding: 0 10px;
    border-right: 1px solid #ddd;
}

.tool-group:last-child {
    border-right: none;
}

.tool-btn {
    width: 45px;
    height: 45px;
    border: 1px solid #e0e0e0;
    background-color: #ffffff;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn:hover {
    background-color: #f8f9fa;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tool-btn.active {
    background-color: #e7f5ff;
    border-color: #74c0fc;
    color: #1c7ed6;
}

.tool-btn i {
    font-size: 1.2rem;
}

.canvas-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: #e9ecef;
}

#canvas {
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

#colorPicker {
    width: 45px;
    height: 45px;
    padding: 5px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

#colorPicker:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

#fontSize {
    height: 45px;
    padding: 0 15px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    background-color: #ffffff;
}

#fontSize:hover {
    border-color: #74c0fc;
}

#fontSize:focus {
    outline: none;
    border-color: #74c0fc;
    box-shadow: 0 0 0 3px rgba(116, 192, 252, 0.25);
}

.workspace {
    flex: 1;
    display: flex;
    background-color: #e9ecef;
}

.elements-panel {
    width: 250px;
    background-color: #ffffff;
    border-right: 1px solid #dee2e6;
    overflow-y: auto;
    height: calc(100vh - 75px);
}

.panel-header {
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

.panel-header h3 {
    margin: 0;
    color: #495057;
    font-size: 1.1rem;
}

.elements-group {
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

.elements-group h4 {
    margin: 0 0 10px 0;
    color: #6c757d;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.element-item {
    display: flex;
    align-items: center;
    padding: 10px;
    margin-bottom: 5px;
    border: 1px solid #e9ecef;
    border-radius: 6px;
    cursor: move;
    transition: all 0.2s ease;
}

.element-item:hover {
    background-color: #f8f9fa;
    border-color: #dee2e6;
    transform: translateX(5px);
}

.element-item i {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 10px;
    color: #495057;
}

.element-item span {
    color: #495057;
    font-size: 0.9rem;
}

.qr-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.qr-modal-content {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

.qr-modal-content h3 {
    margin: 0 0 15px 0;
    color: #333;
}

.qr-modal-content input[type="text"] {
    width: 100%;
    padding: 8px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.qr-options {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.qr-options label {
    display: flex;
    align-items: center;
    gap: 5px;
}

.qr-options select,
.qr-options input[type="color"] {
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.qr-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.qr-buttons button {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.qr-buttons button#qr-cancel {
    background-color: #e9ecef;
    color: #495057;
}

.qr-buttons button#qr-create {
    background-color: #007bff;
    color: white;
}

.qr-buttons button:hover {
    opacity: 0.9;
}

.layers-panel {
    width: 250px;
    background-color: #ffffff;
    border-left: 1px solid #dee2e6;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 75px);
}

.layer-controls {
    display: flex;
    gap: 5px;
    margin-top: 10px;
}

.layer-btn {
    width: 30px;
    height: 30px;
    border: 1px solid #e0e0e0;
    background-color: #ffffff;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.layer-btn:hover {
    background-color: #f8f9fa;
    border-color: #74c0fc;
}

.layer-btn.active {
    background-color: #e7f5ff;
    border-color: #74c0fc;
    color: #1c7ed6;
}

#layers-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.layer-item {
    display: flex;
    align-items: center;
    padding: 8px;
    margin-bottom: 5px;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    background-color: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.layer-item:hover {
    background-color: #f8f9fa;
    transform: translateX(5px);
}

.layer-item.selected {
    border-color: #74c0fc;
    background-color: #e7f5ff;
}

.layer-item-preview {
    width: 30px;
    height: 30px;
    margin-right: 10px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.layer-item-preview img {
    max-width: 100%;
    max-height: 100%;
}

.layer-item-info {
    flex: 1;
}

.layer-item-name {
    font-size: 0.9rem;
    color: #495057;
    margin-bottom: 2px;
}

.layer-item-type {
    font-size: 0.8rem;
    color: #6c757d;
}

.layer-item-controls {
    display: flex;
    gap: 5px;
}

.layer-item-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
}

.layer-item-btn:hover {
    color: #1c7ed6;
}

.layer-item-btn.hidden {
    color: #dee2e6;
}

.layer-item-btn.locked {
    color: #dc3545;
}

.pen-point {
    width: 8px;
    height: 8px;
    background-color: #fff;
    border: 2px solid #007bff;
    border-radius: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: all;
    cursor: move;
}

.pen-point:hover {
    background-color: #007bff;
}

.pen-control-point {
    width: 6px;
    height: 6px;
    background-color: #fff;
    border: 1px solid #666;
    border-radius: 50%;
    position: absolute;
    transform: translate(-50%, -50%);
    pointer-events: all;
    cursor: move;
}

.pen-control-line {
    position: absolute;
    height: 1px;
    background-color: #666;
    pointer-events: none;
}