/* ==========================================================================
   Layout Component Styles
   ========================================================================== */

/* Layout Container */
#layout_canvas {
    /* Display & Box Model */
    display: flex;
    flex-direction: column;
    flex: 1;
    height: fit-content;
    min-height: 0;
    
    padding: 0px;
    margin-top: 0;
    margin-bottom: var(--gap);
    
    /* Positioning */
    position: relative;
    
    /* Visual */
    background: var(--color-background);
    overflow: hidden;
    border-top: 0px solid var(--color-background-brighter);
}

/* Conditional padding: Single-sheet (fabric) gets 18px padding, multi-sheet gets none */
#layout_canvas:not(:has(.layout-visualization.multi-sheet)) {
    padding: 0;
     border: 0px solid var(--color-background-brighter);
}

#layout_canvas:has(.layout-visualization.multi-sheet) {
    padding: 0px;
     border: 0px solid var(--color-background-brighter);
}


/* Mobile styles for layout canvas */
@media screen and (max-width: 899px) {
    #layout_canvas {
        min-height: 100%;
        height: auto;
        overflow: visible;
    }

    .layout-container {
        overflow: visible;
        height: auto;
        min-height: 0;
    }

    .layout-visualization {
        flex: 1;
        min-height: 100%;
        height: auto;
        overflow: visible;
        padding-bottom: 50px; /* Gap for mobile footer */
    }

    .base-material {
        min-height: 100%;
        height: auto;
        overflow: visible;
    }
}

/* Layout Result Container */
#layout-result {
    /* Display & Box Model */
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.layout-container {
    /* Display & Box Model */
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    max-width: calc(100vw - var(--gap));
}

/* Layout Header */
#layout-header {
    /* Display & Box Model */
    width: auto;
    margin: 0;
    padding: 18px 18px 15px;
    height: 49px; /* Fixed height for consistent calculations */
    box-sizing: border-box;
    
    /* Visual */
    background: var(--color-background);
    border-bottom: 1px solid var(--color-background-brighter);
}

/* Layout Visualization */
.layout-visualization {
    /* Display & Box Model */
    flex: 1;
    min-height: 0;
    align-content: center;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
    
    /* Visual */
    background: var(--color-background-darker);
    will-change: width, height;
    padding-bottom: 0px;
}

 .layout-visualization {
 overflow: visible; 
}

/* Hide scrollbar for Chrome, Safari and Opera */
.layout-visualization::-webkit-scrollbar {
    display: none;
}

.base-material {
    /* Display & Box Model */
    width: 100%; /* Full width - container provides 18px padding for gaps */
    /* height: removed - set by JavaScript based on material length and scale ratio */
    
    /* Positioning */
    position: relative !important; /* Force relative positioning */
    
    /* Visual */
    background: var(--color-background-darker);
    will-change: transform;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 30px;
    transform: translateZ(0);
}

/* Scale-to-length mode specific styles */
#layout_canvas.scale-to-length-mode .base-material {
    position: relative !important;
    transform: translateZ(0);
    will-change: transform;
    overflow: visible !important;
}

/* Ensure drag handle stays attached to base material */
.base-material {
    position: relative; /* Ensure this is set for absolute positioning context */
}

#layout_canvas.scale-to-length-mode .base-material {
    position: relative;
    overflow: visible !important; /* Ensure drag handle is visible */
}


/* Panel Visualization */
.panel {
    /* Positioning */
    position: absolute;
    transform-origin: top left;
    z-index: 1;
    
    /* Display & Box Model */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 0;
    box-sizing: border-box;
    
    /* Visual */
    box-shadow: inset 0 0 0 0.5px rgba(var(--color-panel-border-rgb), 0.9), 0 0 0 0.5px rgba(var(--color-panel-border-rgb), 0.9);
    background-color: var(--color-panel-background);
    overflow: hidden;

    
    /* Typography */
    font-size: 0.8rem;
    font-family: var(--font-family-02);
    text-align: center;
    
    /* Interaction */
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    touch-action: none;
    
    /* Animation */
    will-change: transform;
    transform: translate3d(0, 0, 0);
    transition: none;
}

.panel:hover {
    box-shadow: inset 0 0 0 1px var(--color-panel-border-hover), 0 0 0 1px var(--color-panel-border-hover);
    background-color: var(--color-panel-background);
     z-index: 1000;
}

.panel:hover .panel-name,
.panel:hover .panel-dimensions {
    color: var(--color-panel-border-hover);
}

.panel.dragging {
    cursor: grabbing;
    box-shadow: inset 0 0 0 1px var(--color-panel-border-dragging), 0 0 0 1px var(--color-panel-border-dragging);
    background-color: var(--color-panel-background);
    z-index: 1000;
}

.panel.dragging .panel-name,
.panel.dragging .panel-dimensions {
    color: var(--color-panel-border-dragging);
}

.panel.snapping {
    cursor: grabbing;
    box-shadow: inset 0 0 0 1px var(--color-panel-border-snapping), 0 0 0 1px var(--color-panel-border-snapping);
    background-color: var(--color-panel-background);
    z-index: 1000;
}

.panel.snapping .panel-name,
.panel.snapping .panel-dimensions {
    color: var(--color-panel-border-snapping);
}

.panel.selected {
    z-index: 1000;
    box-shadow: inset 0 0 0 0.5pt var(--color-panel-border-selected), 0 0 0 0.5pt var(--color-panel-border-selected) !important;
    background-color: var(--color-panel-background);
}

.panel.selected .panel-name,
.panel.selected .panel-dimensions {
    color: var(--color-panel-border-selected);
    opacity: 1;
    font-weight: 600;
}

/* ==========================================================================
   8. Panel Label Styles
   Styling for panel names and dimensions in the layout visualization
   ========================================================================== */

.panel-label-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
  width: 90%;
  font-family: var(--font-family-02);
  color: rgba(var(--color-panel-border-rgb), 1);
  line-height: 1.2;
  z-index: 2;
}

.panel-name {
  font-size: 0.7rem;
  font-weight: 500;
  margin-bottom: 0.2rem;
  opacity: 1;
  color: rgba(var(--color-panel-border-rgb), 1);
  text-transform: uppercase;
  letter-spacing: 0.03rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.panel-dimensions {
  font-size: 0.6rem;
  font-weight: 300;
  opacity: 1;
  color: rgba(var(--color-panel-border-rgb), 1);
  white-space: nowrap;
}

/* Responsive font sizing for different panel sizes */
@media screen and (max-width: 899px) {
  .panel-name {
    font-size: 0.6rem;
  }

  .panel-dimensions {
    font-size: 0.5rem;
  }
}

/* Hide labels entirely when panels are very small */
.panel[style*="width: 0px"],
.panel[style*="width: 1px"],
.panel[style*="width: 2px"],
.panel[style*="width: 3px"],
.panel[style*="width: 4px"],
.panel[style*="height: 0px"],
.panel[style*="height: 1px"],
.panel[style*="height: 2px"],
.panel[style*="height: 3px"],
.panel[style*="height: 4px"] {
  .panel-label-container {
    display: none;
  }
}



/* Touch-specific styles */
@media (hover: none) and (pointer: coarse) {
    .panel {
        cursor: move;
    }
    .panel.dragging {
        cursor: move !important;
    }
}

/* Snap Lines */
.snap-line {
    /* Positioning */
    position: absolute;
    top: 0;
    left: 0;
    
    /* Visual */
    background-color: var(--color-accent-04);
    opacity: 0;
    z-index: 1001; /* Above dragging panels (1000) */
    
    /* Animation */
    will-change: opacity;
    transition: opacity 0.15s ease;
    pointer-events: none; /* Don't interfere with dragging */
}

.snap-line.vertical {
    width: 1px;
    height: 100%;
    top: 0;
}

.snap-line.horizontal {
    height: 1px;
    width: 100%;
    left: 0;
}

.snap-line.visible {
    opacity: 0.3; 
}

/* Snap line container */
.snap-line-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1001; /* Above dragging panels */
}


/* Scale Control Options */
.control-label-option[data-scale] {
    opacity: 0.7;
}

.control-label-option[data-scale].active {
    opacity: 1;
    text-decoration: underline;
    text-underline-offset: 0.21rem;
}

.control-label-option[data-scale="length"].active ~ .control-label-option[data-scale="width"] {
    opacity: 0.7;
    text-decoration: none;
}

.control-label-option[data-scale="width"] {
    opacity: 1;
    text-decoration: underline;
    text-underline-offset: 0.21rem;
}

#efficiency {
    display: block;
    color: var(--color-foreground);
}

/* ==========================================================================
   Media Queries
   ========================================================================== */

/* Tablet Styles (540px and up) */
@media screen and (min-width: 540px) {
    #efficiency {
        display: block;
    }
}



/* Desktop Styles (900px and up) */
@media screen and (min-width: 900px) {
    .layout-container {
        max-width: calc(100vw - 402px - var(--gap));
    }

    #layout-header {
        /* Positioning */
        position: sticky;
        top: calc(var(--secondary-header-height) + var(--gap));
        z-index: 10;
    }

    .scale-bar {
        width: 100%;
    }

     .layout-visualizatrion {
        overflow: auto;
    }

    #layout_canvas {
        min-height: calc(100vh - 123px);
    
        /* Display & Box Model */
        overflow-y: auto;
        
        /* Scroll behavior - prevent scrolling behind sticky headers */
        scroll-margin-top: calc(var(--secondary-header-height) + 60px);
        
        /* Visual */
        background: var(--color-background);
        
        /* Performance */
        will-change: transform;
    }

    /* Multi-sheet mode adjustment - when layout-header is hidden for fixed dimension materials - account for 1px borders */
    #layout_canvas:has(.layout-visualization.multi-sheet) {
        max-height: calc(100vh - 70px); 
    }

    .base-material.scale-to-length {
        width: auto;
        /* height: removed - set by JavaScript based on material length and scale ratio */
        margin: auto;
    }


}