/* ========== Canvas Viewport ========== */
.viewport-container {
    grid-area: canvas;
    position: relative;
    overflow: hidden;
    background: #0D1420;
    cursor: default;
}

/* ========== Canvas Scaler ========== */
.canvas-scaler {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    will-change: transform;
}

/* ========== Page Background ========== */
.page-background {
    position: relative;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    overflow: hidden;
}

/* ========== Content Layer ========== */
.content-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Isolate from editor styles */
    isolation: isolate;
}

/* Content layer elements should not interfere with selection */
.canvas-element {
    pointer-events: none;
    user-select: none;
    box-sizing: border-box;
}

/* Image elements need explicit display and sizing */
img.canvas-element {
    display: block;
    object-fit: contain;
}

/* ========== Grid Overlay ========== */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.grid-overlay canvas {
    width: 100%;
    height: 100%;
}

/* ========== Selection Overlay (SVG) ========== */
.selection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
}

.resize-handle {
    pointer-events: all;
}

.resize-handle:hover {
    fill: var(--accent);
}

/* ========== Resize Tooltip ========== */
.resize-tooltip {
    position: absolute;
    background: #F8FAFC;
    color: #111827;
    font-size: 11px;
    font-family: var(--font-family);
    padding: 3px 8px;
    border-radius: 4px;
    pointer-events: none;
    z-index: 10000;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
}

/* ========== Hover Highlight ========== */
.hover-highlight {
    pointer-events: none;
}

/* ========== Drop Target Highlight ========== */
.viewport-container.drop-target {
    outline: 2px dashed var(--accent, #2680EB);
    outline-offset: -2px;
}

/* ========== Selection Pulse ========== */
@keyframes selection-pulse {
    0% { stroke-opacity: 0.4; }
    50% { stroke-opacity: 1; }
    100% { stroke-opacity: 1; }
}

/* ========== Snap Guides ========== */
.snap-guide {
    pointer-events: none;
}

/* ========== Spacing Indicator ========== */
.spacing-label {
    font-size: 10px;
    fill: var(--snap-guide);
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    pointer-events: none;
}

/* ========== Tool Cursors ========== */
.viewport-container[data-tool="rectangle"],
.viewport-container[data-tool="text"] {
    cursor: crosshair;
}

.viewport-container[data-tool="image"] {
    cursor: cell;
}

/* ========== Imported Content ========== */
.content-layer.imported {
    /* Imported HTML renders here with full browser fidelity */
}

.content-layer.imported [data-editor-id] {
    /* Elements are selectable via overlay, not via pointer events */
    cursor: default;
}

/* ========== Element Editing States ========== */
.canvas-element[contenteditable="true"] {
    pointer-events: auto;
    user-select: text;
    cursor: text;
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ========== Zoom indicator (legacy - replaced by toolbar zoom) ========== */
.zoom-indicator {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #ccc;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    pointer-events: none;
    z-index: 100;
    display: none; /* Hidden - zoom now in toolbar */
}

/* ========== Artboard ========== */
.page-background.artboard {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255,255,255,0.05);
}