/* Drawing Feature Styles */

.draw-ui {
    display: flex;
    flex-direction: row-reverse; /* Icons grow to the left from the top-right corner */
    align-items: center;
    gap: 8px;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000; /* Higher than nav and other elements */
    pointer-events: none; /* Allow clicking through the container */
}

.draw-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    height: 34px;
    width: 34px;
    box-sizing: border-box;
    box-shadow: var(--shadow-sm);
    pointer-events: auto; /* Enable clicks on buttons */
    transition: all 0.2s ease;
}

.draw-btn svg {
    width: 18px;
    height: 18px;
    display: block;
}

.draw-btn:hover {
    background: var(--bg2);
    color: var(--accent);
}

.draw-btn.active {
    background: var(--title);
    color: var(--bg);
    border-color: var(--title);
}

.draw-btn.active svg {
    fill: currentColor;
}

/* Drawing Toolbar */
.draw-toolbar {
    display: none; /* Hidden by default */
    align-items: center;
    gap: 8px;
    flex-direction: row-reverse;
}

.draw-toolbar.visible {
    display: flex;
}


/* Drawing Canvas Layer */
#draw-canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1900; /* Just below the UI */
    pointer-events: none; /* Click through when not drawing */
    display: none; /* Hidden by default */
}

#draw-canvas-container.active {
    display: block;
    pointer-events: auto;
    cursor: crosshair;
}

#draw-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Scroll Lock - Preserves Scrollbar */
html.draw-scroll-lock {
    overflow: hidden !important;
}

body.draw-scroll-lock {
    position: fixed !important;
    overflow-y: scroll !important;
    width: 100% !important;
    touch-action: none !important;
}

/* Brush/Eraser Preview */
.draw-cursor-preview {
    position: fixed;
    pointer-events: none;
    border-radius: 50%;
    z-index: 100000;
    border: 1px solid rgba(128, 128, 128, 0.5);
    display: none;
    transform: translate(-50%, -50%);
    box-sizing: border-box;
    background-color: transparent;
}

#draw-canvas-container.active ~ .draw-cursor-preview {
    display: block;
}

/* Ensure images in buttons don't have default styles */
.draw-btn img {
    display: block;
    margin: 0;
    user-select: none;
    -webkit-user-drag: none;
}