/**
 * Grid Layouts Styles
 */

.layout-grid {
    width: 100%;
    height: 100%;
    background-color: var(--background-color);
}

/* Main layout wrapper */
.grid-layout-wrapper {
    display: flex;
    flex-direction: row-reverse; /* Move sidebar to right */
    height: 100%;
    position: relative;
}

/* Lane selector sidebar - RIGHT SIDE */
.grid-lane-selector {
    width: min(32vw, 340px);  /* Optimal width - not too wide */
    background-color: var(--panel-background);
    border-left: calc(0.09 * var(--scale-base)) solid var(--border-color);  /* Border on left side when panel is on right */
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 10;
    box-shadow: calc(-0.37 * var(--scale-base)) 0 calc(1.11 * var(--scale-base)) rgba(0, 0, 0, 0.1); /* Shadow to the left */
}

.grid-lane-selector.collapsed {
    width: 0;
    overflow: hidden;
    box-shadow: none;
}

.grid-lane-selector.collapsed .lane-selector-content {
    display: none;
}

.lane-selector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--gap-md);
    border-bottom: calc(0.09 * var(--scale-base)) solid var(--border-color);  /* 1px = 0.09vh on FHD */
}

.lane-selector-header h3 {
    margin: 0;
    font-size: var(--text-scale-lg);  /* 16px - 20px responsive */
    color: var(--text-primary);
}

.btn-collapse {
    background: var(--primary-color);
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--gap-sm);
    font-size: var(--text-scale-lg);  /* 16px - 20px responsive */
    transition: all 0.2s;
    border-radius: 50%;
    width: calc(3.24 * var(--scale-base));  /* 35px */
    height: calc(3.24 * var(--scale-base));
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-collapse:hover {
    background: var(--primary-hover);
    transform: rotate(180deg);
}

.grid-lane-selector.collapsed .btn-collapse {
    transform: rotate(180deg);
}

.lane-selector-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--gap-md);
}

.lane-selector-instructions {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--gap-md);
    font-size: var(--text-scale-sm);  /* 12px - 14px responsive */
}

/* Lane list */
.lane-list {
    display: flex;
    flex-direction: column;
    gap: var(--gap-md);
}

.lane-center-group {
    border: calc(0.09 * var(--scale-base)) solid var(--border-color);  /* 1px = 0.09vh on FHD */
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: var(--card-background);
}

.center-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: calc(0.69 * var(--scale-base)) var(--gap-md);  /* 0.75rem 1rem */
    background-color: var(--center-color, var(--primary-color));
    color: white;
}

.center-name {
    font-weight: 600;
}

.lane-count {
    font-size: var(--text-scale-sm);  /* 12px - 14px responsive */
    opacity: 0.9;
}

.center-lanes {
    padding: var(--gap-sm);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-md);  /* Increased gap for taller thumbnails */
    justify-content: center;
}

/* Lane items - Enhanced with thumbnails */
.lane-item {
    display: flex;
    flex-direction: column;
    gap: var(--gap-sm);
    padding: var(--gap-sm);
    background-color: var(--card-background);
    border: calc(0.185 * var(--scale-base)) solid var(--center-color, var(--border-color));
    border-radius: calc(0.74 * var(--scale-base));  /* 8px */
    cursor: grab;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    position: relative;
    overflow: hidden;
    width: 100%;
    box-shadow: 0 calc(0.185 * var(--scale-base)) calc(0.556 * var(--scale-base)) rgba(0, 0, 0, 0.05);
}

.lane-item:active {
    cursor: grabbing;
}

/* Lane thumbnail */
.lane-thumbnail {
    width: 100%;
    aspect-ratio: 16/9;  /* Perfect 16:9 ratio regardless of width */
    background-color: #000;
    border-radius: calc(0.37 * var(--scale-base));  /* 4px */
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Bowling pin loading indicator for thumbnails - same approach as main monitors */
.lane-thumbnail::after {
    content: '🎳';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;  /* 40px - appropriate for thumbnails */
    opacity: 0;
    animation: pinPulse 3s ease-in-out infinite;
    z-index: 2;
}

/* Show loading animation when thumbnail is loading */
.lane-thumbnail.loading::after {
    opacity: 1;
}

/* Hide loading animation when thumbnail image loads */
.lane-thumbnail.image-loaded::after {
    opacity: 0;
    animation: none;
    transition: opacity 0.3s ease-out;
}

.lane-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0; /* Start invisible to prevent FOUC */
    transition: opacity 0.2s ease;
}

/* Image loaded state */
.lane-thumbnail img.loaded {
    opacity: 1;
}

.lane-thumbnail img.loading {
    opacity: 0.5;
}

/* Old placeholder classes removed - now using unified CSS approach with ::after pseudo-element */

/* Animation keyframes moved to app.css for consolidation */

/* Lane info */
.lane-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 calc(0.37 * var(--scale-base));
    min-height: calc(2.22 * var(--scale-base));  /* 24px */
}

.lane-number {
    font-size: var(--text-scale-md);
    font-weight: 600;
    color: var(--text-primary);
}

.lane-status-indicator {
    width: calc(0.93 * var(--scale-base));  /* 10px */
    height: calc(0.93 * var(--scale-base));
    border-radius: 50%;
    background-color: var(--text-secondary);
    transition: all 0.2s;
}

.lane-item:hover {
    transform: translateY(calc(-0.37 * var(--scale-base)));  /* -4px */
    box-shadow: 0 calc(0.556 * var(--scale-base)) calc(1.48 * var(--scale-base)) rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.lane-item:hover .lane-thumbnail {
    transform: scale(1.02);
}

.lane-item.dragging {
    opacity: 0.3;
    transform: scale(0.95);
    cursor: grabbing;
}

/* Drag ghost styling */
.lane-item-drag-ghost {
    position: fixed;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.8;
    transform: rotate(-2deg);
    transition: none;
}

.lane-item.assigned {
    opacity: 0.7;
    background-color: var(--success-background);
}

.lane-item.assigned .lane-status-indicator {
    background-color: var(--success-color);
    box-shadow: 0 0 calc(0.556 * var(--scale-base)) var(--success-color);
}

.lane-item.assigned .lane-thumbnail {
    filter: brightness(0.8);
}

.lane-item.touch-selected {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05) translateY(calc(-0.37 * var(--scale-base)));
    box-shadow: 0 calc(0.74 * var(--scale-base)) calc(1.85 * var(--scale-base)) rgba(var(--primary-rgb), 0.3);
}

.lane-item.touch-selected .lane-number {
    color: white;
}

/* Assigned checkmark overlay */
.assigned-icon {
    position: absolute;
    top: calc(0.46 * var(--scale-base));
    right: calc(0.46 * var(--scale-base));
    background-color: var(--success-color);
    color: white;
    width: calc(2.78 * var(--scale-base));  /* 30px */
    height: calc(2.78 * var(--scale-base));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-scale-sm);
    box-shadow: 0 calc(0.185 * var(--scale-base)) calc(0.556 * var(--scale-base)) rgba(0, 0, 0, 0.2);
    animation: popIn 0.3s ease-out;
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Grid monitors container */
.grid-monitors-container {
    flex: 1;
    padding: var(--gap-md);
    overflow: auto;
    /* Always start from top to prevent cutting off top rows */
    display: flex;
    align-items: flex-start;  /* Changed from center to flex-start to fix top cutoff */
    justify-content: center;
    position: relative;
    /* Ensure container has minimum dimensions to prevent collapse */
    min-height: 400px;
    width: 100%;
    
    /* Modern safe centering with progressive enhancement */
    align-items: safe center;
    
    /* Container query support for precise control */
    container-type: inline-size;
    
    /* Smooth transitions for alignment changes */
    transition: align-items 0.3s ease, padding 0.3s ease;
}

/* Auto mode specific styling - prevent overflow by starting from top */
.grid-monitors-container.auto-mode {
    align-items: flex-start;
}

.grid-monitors {
    display: grid;
    gap: var(--gap-sm);
    width: 100%;
    height: auto;
    /* Allow grid to size based on content */
    max-width: 100%;
    /* Use max-content for columns to allow JS-controlled sizing */
    grid-template-columns: repeat(var(--columns), max-content);
    /* Remove size constraints - let JS control sizing */
    /* NO grid-auto-rows - sizes set via JS */
    /* Smooth transitions for dynamic resizing */
    transition: grid-template-columns 0.3s ease;
}

/* REMOVED: Layout-specific grid row constraints - replaced with direct JS sizing */

/* Safe centering for narrow widths - Progressive enhancement */
@supports (container-type: inline-size) {
    /* Container query for narrow widths */
    @container (max-width: 800px) {
        .grid-monitors-container {
            align-items: flex-start;
            padding-inline-start: calc(var(--gap-md) + 0.5rem);
        }
    }
    
    /* Extra narrow widths */
    @container (max-width: 600px) {
        .grid-monitors-container {
            padding-inline-start: calc(var(--gap-md) + 0.25rem);
        }
        
        .grid-monitors {
            gap: calc(var(--gap-sm) * 0.75); /* Reduced gaps for narrow screens */
        }
    }
}

/* Fallback for browsers without container query support */
@supports not (container-type: inline-size) {
    /* JavaScript-controlled safe centering fallback */
    .grid-monitors-container.narrow-width {
        align-items: flex-start;
        padding-inline-start: calc(var(--gap-md) + 0.5rem);
    }
    
    .grid-monitors-container.extra-narrow-width {
        padding-inline-start: calc(var(--gap-md) + 0.25rem);
    }
    
    .grid-monitors-container.extra-narrow-width .grid-monitors {
        gap: calc(var(--gap-sm) * 0.75);
    }
}

/* Grid cells */
.grid-cell {
    position: relative;
    background-color: var(--card-background);
    border: calc(0.09 * var(--scale-base)) solid transparent;  /* 1px = 0.09vh on FHD */
    border-radius: calc(0.37 * var(--scale-base));  /* 4px = 0.37vh on FHD */
    overflow: hidden;
    /* Smooth transitions for width/height changes controlled by JS */
    transition: width 0.3s ease, height 0.3s ease, transform 0.2s ease, 
                border-color 0.2s ease, background-color 0.2s ease;
    /* Ensure cells maintain aspect ratio during resize */
    display: flex;
    align-items: stretch;  /* Changed from center to stretch */
    justify-content: stretch;  /* Changed from center to stretch */
    /* Remove all size constraints - width/height set directly via JS */
}

.grid-cell.drag-over {
    border-color: var(--primary-color);
    background-color: var(--primary-background);
    border-width: calc(0.185 * var(--scale-base));  /* 2px */
    transform: scale(1.02);
    box-shadow: 0 0 calc(1.85 * var(--scale-base)) rgba(var(--primary-rgb), 0.3);
}

/* Enhanced visual feedback for drag operations */
.grid-cell.drag-over .monitor-placeholder {
    opacity: 0.3;
}

.grid-cell.drag-over::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, 
        transparent 30%, 
        rgba(var(--primary-rgb), 0.1) 50%, 
        transparent 70%);
    animation: shimmer 1s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.grid-cell-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Monitor placeholder */
.monitor-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
}

.monitor-placeholder i {
    font-size: calc(2.78 * var(--scale-base));  /* 3rem ≈ 30px = 2.78vh on FHD */
    margin-bottom: var(--gap-sm);
    opacity: 0.5;
}

.monitor-placeholder span {
    font-size: var(--text-scale-md);  /* 14px - 18px responsive */
    font-weight: 500;
}

.monitor-placeholder small {
    font-size: var(--text-scale-sm);  /* 12px - 14px responsive */
    opacity: 0.7;
    margin-top: calc(0.23 * var(--scale-base));  /* 0.25rem ≈ 2.5px = 0.23vh on FHD */
}

/* Monitor container */
.monitor-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Ensure monitor scales with container */
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Clear button */
.btn-clear-monitor {
    position: absolute;
    top: var(--gap-sm);
    right: var(--gap-sm);
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: calc(2.96 * var(--scale-base));   /* 32px = 2.96vh on FHD */
    height: calc(2.96 * var(--scale-base));
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
}

.btn-clear-monitor:hover {
    background-color: white;
    color: var(--danger-color);
    transform: scale(1.1);
}

/* Touch instructions */
.touch-instructions {
    position: absolute;
    top: var(--gap-md);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--info-background);
    color: var(--info-color);
    padding: calc(0.69 * var(--scale-base)) var(--gap-lg);  /* 0.75rem 1.5rem */
    border-radius: var(--border-radius);
    box-shadow: 0 calc(0.37 * var(--scale-base)) calc(1.11 * var(--scale-base)) rgba(0, 0, 0, 0.15);  /* 0 4px 12px */
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 100;
}

.touch-instructions.visible {
    opacity: 1;
    visibility: visible;
}

/* Responsive adjustments */
/* Sidebar toggle button - visible when collapsed */
.sidebar-toggle-overlay {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: calc(0.93 * var(--scale-base)) calc(0.37 * var(--scale-base));
    border-radius: calc(0.74 * var(--scale-base)) 0 0 calc(0.74 * var(--scale-base));
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--text-scale-lg);
    box-shadow: calc(-0.185 * var(--scale-base)) 0 calc(0.74 * var(--scale-base)) rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
    z-index: 11;
}

.grid-lane-selector.collapsed ~ .sidebar-toggle-overlay {
    display: flex;
}

.sidebar-toggle-overlay:hover {
    padding-left: calc(0.74 * var(--scale-base));
}

@media (max-width: 768px) {
    .grid-lane-selector {
        width: 300px;
    }
    
    .grid-lane-selector.collapsed {
        width: 0;
        border: none;
    }
    
    .grid-monitors {
        gap: 0.5rem;
    }
    
    .monitor-placeholder i {
        font-size: 2rem;
    }
    
    /* Single column on tablets */
    .center-lanes {
        grid-template-columns: 1fr;
        padding: var(--gap-sm);
    }
}

@media (max-width: 480px) {
    .grid-layout-wrapper {
        flex-direction: column;
    }
    
    .grid-lane-selector {
        width: 100%;
        height: 250px;  /* Increased to accommodate taller thumbnails */
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .grid-lane-selector.collapsed {
        height: 40px;
    }
    
    .lane-selector-content {
        padding: 0.5rem;
    }
    
    .grid-monitors-container {
        padding: 0.5rem;
    }
    
    /* 2 columns on mobile */
    .center-lanes {
        grid-template-columns: repeat(2, 1fr);
        gap: calc(0.37 * var(--scale-base));
        padding: var(--gap-xs);
    }
    
    /* aspect-ratio handles perfect 16:9 automatically */
    
    .lane-number {
        font-size: var(--text-scale-sm);
    }
}

/* Grid-specific layouts - let aspect-ratio handle cell sizing */
.grid-monitors.grid-1x1 {
    grid-template-columns: 1fr;
}

.grid-monitors.grid-2x1 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-monitors.grid-2x2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-monitors.grid-3x2 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-monitors.grid-3x3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-monitors.grid-4x4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-monitors.grid-5x5 {
    grid-template-columns: repeat(5, 1fr);
}

.grid-monitors.grid-6x4 {
    grid-template-columns: repeat(6, 1fr);
}

/* Auto-mode specific styling - when sidebar is hidden */
.layout-grid .grid-lane-selector[style*="display: none"] + .grid-monitors-container {
    /* When sidebar is hidden, monitors container takes full width */
    flex: 1;
    max-width: 100%;
}

/* Enhanced scrolling behavior for large grids */
.grid-monitors-container {
    /* Smooth scrolling for better UX */
    scroll-behavior: smooth;
    /* Show scrollbars when needed */
    overflow: auto;
}

/* Responsive single column on smaller screens */
@media (max-width: 1199px) {
    .center-lanes {
        grid-template-columns: 1fr;
    }
    
    /* aspect-ratio automatically handles sizing - no height override needed */
}

/* Optimize grid alignment for very large grids */
.grid-monitors-container:has(.grid-monitors[style*="grid-template-columns: repeat(8"]),
.grid-monitors-container:has(.grid-monitors[style*="grid-template-columns: repeat(7"]),
.grid-monitors-container:has(.grid-monitors[style*="grid-template-columns: repeat(6"]) {
    /* For grids with 6+ columns, align to top instead of center */
    align-items: flex-start;
    padding-top: var(--gap-lg);
}

/* Ensure lane monitors fit properly in grid cells - GRID LAYOUT ONLY */
.layout-grid .grid-cell .lane-monitor {
    width: 100%;
    height: 100%;
    /* Smooth transitions during resize - will be controlled by direct JS sizing */
    transition: width 0.3s ease, height 0.3s ease;
}

.layout-grid .grid-cell .lane-monitor-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.layout-grid .grid-cell .lane-monitor-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
    padding: 0.5rem;
    font-size: 0.875rem;
    z-index: 5;
}

/* Responsive grid cell sizing - removed fixed gap overrides */
/* Grid now uses dynamic gap calculation via var(--gap-sm) which scales properly */