/**
 * ComfyUI Annotations Extension - Styles
 *
 * Overlay positioning and appearance.
 * Supports both light and dark ComfyUI themes.
 */

/* ============================================================================
   Overlay Container
   ============================================================================ */

.annotation-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    overflow: hidden;

    /* Default: pass-through to LiteGraph canvas */
    pointer-events: none;

    /* Prevent text selection while drawing */
    user-select: none;
    -webkit-user-select: none;
}

/* ============================================================================
   Drawing Canvas
   ============================================================================ */

.annotation-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    /* Inherit pointer-events from parent */
    pointer-events: inherit;

    /* Smooth rendering for curves */
    image-rendering: auto;

    /* Touch action for drawing (disable browser gestures) */
    touch-action: none;
}

/* ============================================================================
   Cursor Styles (applied via JavaScript)
   ============================================================================ */

.annotation-canvas[data-mode="draw"] {
    cursor: crosshair;
}

.annotation-canvas[data-mode="erase"] {
    cursor: cell;
}

.annotation-canvas[data-mode="pan"] {
    cursor: default;
}

/* ============================================================================
   Future: Toolbar Styles (Milestone 4+)
   ============================================================================ */

/*
.annotation-toolbar {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1050;
    pointer-events: auto;

    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;

    background: rgba(26, 26, 26, 0.9);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 13px;
    color: #e0e0e0;
}

body:not(.dark) .annotation-toolbar {
    background: rgba(255, 255, 255, 0.95);
    color: #333;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
*/

/* ============================================================================
   Animations
   ============================================================================ */

@keyframes annotation-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.annotation-overlay.visible {
    animation: annotation-fade-in 0.15s ease-out;
}

/* ============================================================================
   High Contrast Mode Support
   ============================================================================ */

@media (prefers-contrast: high) {
    .annotation-overlay {
        /* Ensure strokes remain visible in high contrast */
    }
}

/* ============================================================================
   Reduced Motion Support
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    .annotation-overlay,
    .annotation-overlay * {
        animation: none !important;
        transition: none !important;
    }
}