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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f5f5;
    min-height: 100vh;
    overflow: hidden;
}

.toolbar {
    background: #ffffff;
    color: #333;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    position: absolute;
    width: 280px;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 9;
    overflow-y: auto;
    border-right: 1px solid #e0e0e0;
}

.toolbar p {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #666;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e0e0e0;
}

.toolbar-wrapper {
    background: #f9f9f9;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.shape-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px;
    min-height: 152px;
    justify-content: space-between;
    align-content: space-between;
}

.shape {
    background: #fff;
    border: 2px solid #d0d0d0;
    cursor: grab;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.shape:hover {
    border-color: #666;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

.shape:active {
    cursor: grabbing;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

#shape-rectangle {
    width: 80px;
    height: 48px;
    border-radius: 4px;
}

#shape-ellipse {
    width: 80px;
    height: 48px;
    border-radius: 50%;
}

#shape-diamond {
    height: 48px;
    width: 48px;
    transform: rotate(45deg) translate(3px, -16px);
    border-radius: 4px;
}

#shape-text {
    width: 80px;
    height: 48px;
    border-style: dashed;
    border-radius: 4px;
    color: #666;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
}

/* Tools wrapper */
.tools-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0;
}

.tools-wrapper button {
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    background: #fff;
    color: #333;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.tools-wrapper button:hover {
    background: #f5f5f5;
    border-color: #999;
}

.tools-wrapper button:active {
    background: #e8e8e8;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

#btn-delete {
    color: #d32f2f;
    border-color: #d32f2f;
}

#btn-delete:hover {
    background: #ffebee;
    border-color: #c62828;
}

#btn-copy {
    color: #1976d2;
    border-color: #1976d2;
}

#btn-copy:hover {
    background: #e3f2fd;
    border-color: #1565c0;
}

#btn-paste {
    color: #388e3c;
    border-color: #388e3c;
}

#btn-paste:hover {
    background: #e8f5e9;
    border-color: #2e7d32;
}

/* Zoom wrapper */
.zoom-wrapper {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 6px;
}

.zoom-wrapper button {
    background: #fff;
    color: #333;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    width: 50px;
    height: 50px;
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: background 0.2s, border-color 0.2s;
    outline: none;
}

.zoom-wrapper button:hover {
    background: #f5f5f5;
    border-color: #999;
}

.zoom-wrapper button:active {
    background: #e8e8e8;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Canvas container */
.canvas-container {
    position: absolute;
    left: 280px;
    top: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    background-image:
            linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    overflow: auto;
}

#paper {
    width: 100%;
    height: 100%;
}

/* Scrollbar styling */
.toolbar::-webkit-scrollbar {
    width: 6px;
}

.toolbar::-webkit-scrollbar-track {
    background: #f5f5f5;
}

.toolbar::-webkit-scrollbar-thumb {
    background: #d0d0d0;
    border-radius: 3px;
}

.toolbar::-webkit-scrollbar-thumb:hover {
    background: #999;
}

#resize-handle {
    position: absolute;
    box-sizing: border-box;
    pointer-events: auto;
}


/* Responsive */
@media (max-width: 768px) {
    .toolbar {
        width: 100%;
        height: auto;
        border-radius: 0;
    }

    .canvas-container {
        left: 0;
        top: auto;
    }
}

/* color wrapper */
.color-wrapper{
    display: flex;
    flex-direction: column;
    position: relative;
}
#color-palette{
    display:none;
    top: 41px;
}
#color-palette.active{
    display: grid!important;
}