/* ************************ SEAMLESS TILEMAP EDITOR ************************ */
/* Main application stylesheet - Core UI framework and layout system */
/* This file contains the foundational styles for the Pixel tilemap Studio application */

:root {
    /* COLOR SYSTEM - Professional Dark Theme */
    --bg-darkest: #0f0f1b;       /* Deep background */
    --bg-dark: #1a1a2e;          /* Primary surface */
    --bg-medium: #16213e;        /* Secondary surface */
    --bg-light: #1e293b;         /* Tertiary surface */

    /* ACCENT COLORS - Cyberpunk/Terminal Inspired */
    --accent-primary: #00ff41;   /* Terminal Green */
    --accent-secondary: #ff006e; /* Neon Pink */
    --accent-tertiary: #00d9ff;  /* Cyan */

    /* TEXT & BORDERS */
    --text-primary: #e0e7ff;     /* Primary text */
    --text-secondary: #94a3b8;   /* Secondary text */
    --border-color: #2d3748;     /* Border color */
    --text-dark: #0f0f1b;        /* Dark text for light backgrounds */

    /* LAYOUT DIMENSIONS */
    --header-height: 48px;
    --icon-rail-width: 48px;
    --tools-width: 320px;
    --side-panel-width: 280px;
    --border-glow: rgba(0, 255, 65, 0.3);

    --tile-dim: 32;
    /* The number of logical pixels across the tile */
    --pixel-size: 16px;
    /* The size of one logical pixel on screen */
    --canvas-size: 512px;
    /* 32 * 16 */
}

/* Hidden class for panels */
.hidden {
    display: none !important;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* Slide-up animation for showing panels */
.slide-up {
    display: block !important;
    opacity: 1;
    transform: translateY(0);
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-darkest);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    user-select: none;
}

/* --- HEADER --- */
header {
    height: 60px;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 20;
}

.logo-area h1 {
    font-family: 'Press Start 2P', cursive;
    font-size: 16px;
    color: var(--accent-primary);
    text-shadow: 0 0 10px var(--border-glow);
    font-weight: normal;
}

.badge {
    font-size: 10px;
    background: var(--accent-secondary);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-left: 10px;
}

/* BUTTONS */
button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
    transition: all 0.2s;
}

.btn {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn:hover {
    background: var(--bg-medium);
    border-color: var(--text-secondary);
}

.btn.primary {
    background: var(--accent-primary);
    color: #000;
    font-weight: bold;
    border: none;
}

.btn.primary:hover {
    box-shadow: 0 0 15px var(--border-glow);
}

.btn.icon-only {
    padding: 6px;
    width: 32px;
    height: 32px;
    justify-content: center;
}

.btn.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
}

.header-controls {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: nowrap;
}

.header-controls .separator {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 8px;
    flex-shrink: 0;
}

/* --- MAIN LAYOUT --- */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* When right panel is hidden, allow workspace to expand */
.main-container.panel-closed .workspace {
    max-width: none;
    width: 100%;
    margin-right: 0;
}

/* LEFT TOOLBAR */
.toolbar {
    width: 80px;
    background: var(--bg-dark);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 0;
    gap: 8px;
    z-index: 10;
}

.tool-btn {
    width: 50px;
    height: 50px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    border: 1px solid transparent;
    gap: 4px;
}

.tool-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.tool-btn.active {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 10px var(--border-glow);
}

.tool-btn i {
    font-size: 16px;
}

.separator {
    width: 80%;
    height: 1px;
    background: var(--border-color);
    margin: 5px 0;
}

/* TOOLBAR SPACER */
.toolbar-spacer {
    flex: 1;
    width: 100%;
    min-height: 20px;
}

/* CANVAS BUTTON IN TOOLBAR */
.canvas-btn {
    width: 50px;
    height: 50px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    border: 1px solid transparent;
    gap: 4px;
    margin-bottom: 8px;
}

.canvas-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.canvas-btn.active {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 10px var(--border-glow);
}

.canvas-btn i {
    font-size: 16px;
}

/* PRESET SIZE BUTTONS */
.preset-sizes {
    display: flex;
    gap: 5px;
    margin-left: 10px;
}

.preset-btn {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 10px;
    transition: all 0.2s ease;
    min-width: 35px;
    text-align: center;
}

.preset-btn:hover {
    background: var(--bg-medium);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.preset-btn.active {
    background: var(--accent-primary);
    color: #000;
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

/* LAYER NAME EDITING */
.layer-name {
    cursor: text;
    padding: 2px 4px;
    border-radius: 2px;
    transition: background-color 0.2s;
}

.layer-name:hover {
    background: rgba(255, 255, 255, 0.05);
}

.layer-name:focus {
    background: var(--bg-light);
    outline: 1px solid var(--accent-primary);
}

.layer-name[contenteditable="true"] {
    cursor: text;
}

/* PANEL PRESET BRUSH SIZE BUTTONS */
.preset-brush-size {
    transition: all 0.2s ease;
}

.preset-brush-size:hover {
    background: var(--bg-medium) !important;
    border-color: var(--accent-primary) !important;
    color: var(--accent-primary) !important;
    box-shadow: 0 0 8px var(--border-glow);
}

.preset-brush-size.active {
    background: var(--accent-primary) !important;
    color: #000 !important;
    border-color: var(--accent-primary) !important;
    box-shadow: 0 0 8px var(--border-glow);
}

/* CENTER WORKSPACE */
.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #cccccc;
    position: relative;
    overflow: auto;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: margin-right 0.3s cubic-bezier(0.4, 0.0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    width: calc(100% - 300px);
}

.right-panel.closed+.workspace {
    margin-right: 0;
}

.controls-container {
    max-width: calc(3 * var(--canvas-size));
    margin-bottom: 20px;
    transition: max-width 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.main-container.panel-closed .controls-container {
    max-width: none;
}

.controls-container h1 {
    text-align: center;
    margin-bottom: 15px;
    color: var(--accent-primary);
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: normal;
}

.controls-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
}

.brush-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 20px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.brush-controls label {
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
}

.brush-controls input[type="range"] {
    width: 120px;
}



.brush-size-display {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    color: var(--accent-tertiary);
    min-width: 60px;
    text-align: center;
    display: none;
    font-weight: normal;
}

/* TILE GRID LAYOUT */
.tile-grid-container {
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s ease;
    transform-origin: center center;
    background-image:
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    padding: 10px;
    border-radius: 8px;
    overflow: visible;
    position: relative;
    width: 100%;
    height: 100%;
}

/* FLOATING BRUSH CONTROLS OVERLAY */
.brush-controls-overlay {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    pointer-events: none;
    /* Don't block canvas interactions */
    cursor: move;
    /* Indicate it's draggable */
}

.brush-controls-overlay .grippy {
    display: inline-block;
    cursor: move;
    margin-right: .3em;
    color: #cccccc;
    text-shadow: 1px 0 1px black;
}

.brush-controls-overlay .grippy::before {
    content: '\f58e';  /* Unicode for grippy icon */
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 100%;
}



.brush-controls-overlay .brush-controls {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
    /* Enable interactions */
    white-space: nowrap;
    position: relative;
}

/* Drag handle indicator - right side only */
.brush-controls-overlay .brush-controls::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 40px;
    cursor: move;
    user-select: none;

    background-image: radial-gradient(circle at center,
            rgb(255, 255, 255) -0.05rem,
            transparent 0);

    background-repeat: repeat;
    background-position: center;
    opacity: 0.7;
    z-index: 10;
}

/* Make the brush controls longer and add right padding for opacity control */
.brush-controls-overlay .brush-controls {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px 12px 16px;
    /* Extra space for opacity control */
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
    /* Enable interactions */
    white-space: nowrap;
    position: relative;
    min-width: 500px;
    /* Make it longer */
}

.brush-controls-overlay label {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 12px;
    margin: 0;
}

.brush-controls-overlay input[type="range"] {
    width: 100px;
    margin: 0;
}

.brush-controls-overlay .brush-size-display {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    color: var(--accent-tertiary);
    min-width: 45px;
    text-align: center;
    font-weight: normal;
}

.brush-controls-overlay .preset-sizes {
    display: flex;
    gap: 3px;
    margin-left: 8px;
    flex-wrap: wrap;
    max-width: 200px;
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(3, var(--canvas-size));
    grid-template-rows: repeat(3, var(--canvas-size));
    border: 2px solid var(--accent-tertiary);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3), inset 0 0 20px rgba(0, 217, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
}

canvas {
    width: var(--canvas-size);
    height: var(--canvas-size);
    background-color: transparent;
    cursor: crosshair;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    transition: opacity 0.2s ease;
}

#editor-canvas {
    border: 3px solid var(--accent-primary);
    box-shadow: 0 0 15px var(--border-glow);
    grid-column: 2;
    grid-row: 2;
    position: relative;
    z-index: 10;
}

/* RIGHT PANEL */
.right-panel {
    width: 300px;
    background: var(--bg-dark);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 15;
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1), opacity 0.3s ease;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) var(--bg-dark);
    transform: translateX(0);
    opacity: 1;
}


.right-panel.closed {
    transform: translateX(100%);
    opacity: 0;
    border-left: none;
    pointer-events: none;
}

.panel-section {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--accent-tertiary);
    margin-bottom: 15px;
    letter-spacing: 1px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-body {
    display: block;
}

.section-body.hidden {
    display: none;
}

.section-toggle {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-toggle:hover {
    background: var(--bg-dark);
    color: var(--text-primary);
}

/* PALETTE */
.palette-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    max-height: 200px;
    overflow-y: auto;
    padding: 8px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.swatch.active {
    border: 2px solid var(--accent-primary);
    transform: scale(1.1);
    box-shadow: 0 0 8px var(--border-glow);
}

/* Floating Color History Overlay */
.floating-color-history {
    position: fixed;
    top: 50%;
    left: 140px;
    transform: translateY(-50%);
    z-index: 1000;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: move;
    user-select: none;
}

.floating-color-history .grippy {
    display: block;
    cursor: move;
    margin: 0 auto;
    color: #cccccc;
    text-shadow: 1px 0 1px black;
    object-fit: contain;
}

.floating-color-history .grippy::before {
    content: '\f58d';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 100%;
    object-fit: contain;
}


.color-history-swatches {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Color swatch */
.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.color-swatch:hover {
    transform: scale(1.1);
    border-color: var(--accent-color);
}

.color-swatch.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(168, 85, 247, 0.5);
}

/* Color history label */
.color-history-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 2px;
    font-family: 'Inter', sans-serif;
}

/* ZOOM OVERLAY */
.zoom-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    color: var(--text-secondary);
    pointer-events: none;
    border: 1px solid var(--border-color);
}

/* Zoom controls in header */
.zoom-controls-header {
    display: flex;
    align-items: center;
    gap: 5px;
}

.zoom-display {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    min-width: 40px;
    text-align: center;
    color: var(--accent-tertiary);
    text-shadow: 0 0 5px rgba(0, 217, 255, 0.5);
    padding: 6px 8px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    font-weight: normal;
}

.zoom-controls-header .btn {
    padding: 6px;
    width: 32px;
    height: 32px;
    font-size: 12px;
}

.zoom-controls-header .btn:hover {
    background: var(--bg-medium);
    border-color: var(--accent-tertiary);
    color: var(--accent-tertiary);
    box-shadow: 0 0 8px rgba(0, 217, 255, 0.3);
}


/* INPUT STYLING */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-light);
    border-radius: 3px;
    outline: none;
    border: 1px solid var(--border-color);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-darkest);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-darkest);
}

/* INFO BOX */
.info-box {
    margin-top: 20px;
    padding: 15px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    max-width: calc(3 * var(--canvas-size));
}

.info-box p {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.4;
}

.info-box strong {
    color: var(--accent-primary);
}


/* FLOATING TOGGLE BUTTON FOR PANEL */
#panel-toggle {
    position: absolute;
    right: 300px;
    /* Aligned with open panel */
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-right: none;
    padding: 10px 4px;
    border-radius: 8px 0 0 8px;
    cursor: pointer;
    z-index: 100;
    color: var(--accent-tertiary);
    transition: right 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

#panel-toggle:hover {
    background: var(--bg-medium);
}


@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RESPONSIVE DESIGN */
@media (max-width: 1200px) {
    .tile-grid {
        grid-template-columns: repeat(3, 300px);
        grid-template-rows: repeat(3, 300px);
    }

    canvas {
        width: 300px;
        height: 300px;
    }

    :root {
        --canvas-size: 300px;
    }
}

@media (max-width: 900px) {
    .toolbar {
        width: 60px;
    }

    .tool-btn {
        width: 40px;
        height: 40px;
        font-size: 10px;
    }

    .tool-btn i {
        font-size: 14px;
    }

    .right-panel {
        width: 250px;
    }

    .header-controls {
        gap: 6px;
    }

    .header-controls .btn {
        padding: 4px 8px;
        font-size: 11px;
    }

    .header-controls .btn.icon-only {
        width: 28px;
        height: 28px;
        padding: 4px;
    }

    .zoom-controls-header .btn {
        width: 28px;
        height: 28px;
        padding: 4px;
        font-size: 10px;
    }

    .zoom-display {
        min-width: 35px;
        padding: 4px 6px;
        height: 28px;
        font-size: 9px;
    }
}

@media (max-width: 768px) {
    .controls-row {
        flex-direction: column;
        gap: 10px;
    }

    .brush-controls {
        flex-direction: column;
        gap: 10px;
    }

    .tile-grid {
        grid-template-columns: repeat(3, 200px);
        grid-template-rows: repeat(3, 200px);
    }

    canvas {
        width: 200px;
        height: 200px;
    }

    :root {
        --canvas-size: 200px;
    }

    .header-controls {
        gap: 4px;
    }

    .header-controls .btn {
        padding: 3px 6px;
        font-size: 10px;
    }

    .header-controls .btn.icon-only {
        width: 24px;
        height: 24px;
        padding: 3px;
    }

    .zoom-controls-header .btn {
        width: 24px;
        height: 24px;
        padding: 3px;
        font-size: 9px;
    }

    .zoom-display {
        min-width: 30px;
        padding: 3px 4px;
        height: 24px;
        font-size: 8px;
    }

    .header-controls .separator {
        height: 20px;
        margin: 0 4px;
    }

    /* Responsive floating brush controls */
        .brush-controls-overlay {
            position: fixed;
            bottom: 10px;
            left: 50%;
            transform: translateX(-50%);
            top: auto;
        }
    
        .brush-controls-overlay .brush-controls {
            flex-direction: column;
            gap: 8px;
            padding: 8px 12px;
        }
    
        .brush-controls-overlay .preset-sizes {
            margin-left: 0;
            flex-wrap: wrap;
            justify-content: center;
        }
    
        .brush-controls-overlay .brush-size-display,
        .brush-controls-overlay .opacity-display {
            display: none;
        }
    
        .brush-controls-overlay .brush-size-display:hover,
        .brush-controls-overlay .opacity-display:hover {
            display: inline;
        }

}

/* Enhanced form styling for settings modal */
.setting-control input[type="number"] {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: monospace;
    width: 80px;
    text-align: center;
}

.setting-control input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.setting-control select {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: inherit;
    min-width: 100px;
    cursor: pointer;
}

.setting-control select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.setting-control select:hover {
    border-color: var(--text-secondary);
}

.setting-control input[type="range"] {
    width: 120px;
    accent-color: var(--accent-primary);
}

.setting-control span {
    color: var(--accent-tertiary);
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    margin-left: 8px;
    min-width: 35px;
    font-weight: normal;
}

/* Opacity controls in tool options panel */
#panel-tool-options label {
    color: var(--text-secondary);
    font-size: 11px;
    display: block;
    margin-bottom: 4px;
}

#panel-tool-options span {
    color: var(--accent-tertiary);
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    font-weight: normal;
}

/* Show brush size displays for the tool options panel */
#brushSizeDisplay,
#opacityDisplay {
    display: inline;
}

/* Show opacity control in right panel for dual control functionality */
#panel-opacity-control {
    display: block;
}

/* Show brush size controls in right panel for dual control functionality */
#panel-tool-control {
    display: block;
}

#opacitySlider {
    width: 100%;
    -webkit-appearance: none;
    height: 6px;
    background: var(--bg-light);
    border-radius: 3px;
    outline: none;
    border: 1px solid var(--border-color);
}

#opacitySlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-darkest);
}

#opacitySlider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--accent-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--bg-darkest);
}



.loading-spinner {
    display: none;
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.loading-spinner.active {
    display: block;
}


#btn-settings-reset {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
}

#btn-settings-reset:hover {
    background: var(--bg-medium);
}

#btn-settings-close {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
}

#btn-settings-close:hover {
    background: var(--bg-medium);
}

/* Canvas Size Controls - Professional Styling */
.canvas-size-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

.size-input-group {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px;
}

.size-input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: monospace;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    width: 60px;
    padding: 4px;
    outline: none;
    transition: all 0.2s ease;
}

.size-input:focus {
    background: var(--bg-medium);
    border-radius: 4px;
    box-shadow: 0 0 8px var(--border-glow);
}

.size-separator {
    color: var(--accent-tertiary);
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    font-weight: normal;
    text-shadow: 0 0 5px rgba(0, 217, 255, 0.5);
}

.btn-apply-size {
    background: linear-gradient(135deg, var(--accent-primary), #00cc33);
    color: #000;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 255, 65, 0.2);
    white-space: nowrap;
}

.btn-apply-size:hover {
    background: linear-gradient(135deg, #00ff41, #00dd33);
    box-shadow: 0 4px 8px rgba(0, 255, 65, 0.3);
    transform: translateY(-1px);
}

.btn-apply-size:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 255, 65, 0.2);
}

.btn-apply-size i {
    font-size: 12px;
}

.btn-apply-size span {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.size-description {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 6px;
    font-style: italic;
    opacity: 0.8;
}

.property-group:has(.canvas-size-controls) {
    border-left: 3px solid var(--accent-tertiary);
    background: linear-gradient(135deg, var(--bg-light), rgba(0, 217, 255, 0.05));
}

.property-group:has(.canvas-size-controls) .property-label {
    color: var(--accent-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}



/* Background Control Styling */
.bg-control-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

/* Background Mode Toggle */
.bg-mode-toggle {
    display: flex;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    width: fit-content;
}

.bg-mode-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
    border-right: 1px solid var(--border-color);
    min-width: 80px;
    justify-content: center;
}

.bg-mode-btn:last-child {
    border-right: none;
}

.bg-mode-btn:hover {
    background: var(--bg-medium);
    color: var(--text-primary);
}

.bg-mode-btn.active {
    background: var(--accent-primary);
    color: #000;
    font-weight: 600;
    box-shadow: 0 0 8px var(--border-glow);
}

.bg-mode-btn i {
    font-size: 11px;
}

/* Color Picker Section */
.bg-color-section {
    animation: fadeIn 0.2s ease-out;
}

.color-picker-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.bg-color-input {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    background: none;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.bg-color-input:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.bg-color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.bg-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

/* Color Preview */
.color-preview {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.preview-box {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: #ffffff;
    transition: all 0.2s ease;
}

.preview-box:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.color-value {
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--accent-tertiary);
    background: var(--bg-dark);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    font-weight: 600;
    min-width: 80px;
    text-align: center;
}

/* Transparent Section */
.bg-transparent-section {
    animation: fadeIn 0.2s ease-out;
}

.transparent-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.transparent-grid {
    width: 32px;
    height: 32px;
    background-image:
        linear-gradient(45deg, #ccc 25%, transparent 25%),
        linear-gradient(-45deg, #ccc 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #ccc 75%),
        linear-gradient(-45deg, transparent 75%, #ccc 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    flex-shrink: 0;
}

.transparent-label {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 500;
    font-style: italic;
    opacity: 0.8;
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hover effects for better interactivity */
.bg-control-container .property-group:hover {
    background: var(--bg-light);
    border-color: var(--text-secondary);
}

/* Responsive adjustments for smaller screens */
@media (max-width: 768px) {
    .bg-mode-btn {
        min-width: 70px;
        padding: 6px 8px;
        font-size: 11px;
    }

    .color-picker-group {
        padding: 10px;
        gap: 10px;
    }

    .bg-color-input {
        width: 36px;
        height: 36px;
    }

    .preview-box {
        width: 28px;
        height: 28px;
    }

    .color-value {
        font-size: 11px;
        padding: 3px 6px;
        min-width: 70px;
    }
}

/* Custom Tooltip Styling */
.custom-tooltip {
    position: absolute;
    background: rgba(10, 10, 30, 0.96);
    color: #e0e7ff;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
    pointer-events: none;
    z-index: 99999;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateY(8px);
    max-width: 320px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 255, 65, 0.3);
    backdrop-filter: blur(12px);
    white-space: pre-line;
    word-wrap: break-word;
    user-select: none;
}

.custom-tooltip strong {
    color: #00ff41;
    font-weight: 600;
}

.custom-tooltip em {
    color: #00d9ff;
    font-style: normal;
    font-weight: 500;
}

.custom-tooltip code {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--accent-tertiary);
}

/* Ensure tooltips don't interfere with the interface */
.custom-tooltip[style*="pointer-events: none"] {
    pointer-events: none !important;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    .custom-tooltip {
        transition: none;
    }
}

/* TILEMAP PANEL STYLES */
.tilemap-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.tilemap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: 2px;
    background: var(--bg-medium);
    padding: 4px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    /* Let the grid size adjust based on canvas dimensions */
    width: fit-content;
    height: fit-content;
    margin: 0 auto;
}

.tilemap-square {
    /* Let the square size be determined by the canvas inside */
    width: fit-content;
    height: fit-content;
    min-width: 32px;
    min-height: 32px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    /* Default border that gets overridden by state-specific rules */
    border: 1px solid var(--border-color);
}

.tilemap-square:hover:not(.center) {
    border-color: var(--accent-tertiary);
    box-shadow: 0 0 4px rgba(0, 217, 255, 0.3);
}

.tilemap-square.active {
    background: #00ff41 !important;
    /* Active = green */
    border-color: #00ff41 !important;
    box-shadow: 0 0 6px var(--border-glow);
}

.tilemap-square:not(.active):not(.center) {
    background: transparent !important;
    /* Inactive = transparent with checkerboard */
    border: 2px solid #00d9ff;
    /* Blue outline for inactive */
    box-shadow: 0 0 4px rgba(0, 217, 255, 0.3);
}

.tilemap-square:not(.active):not(.center)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(45deg, #000 25%, transparent 25%),
        linear-gradient(-45deg, #000 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #000 75%),
        linear-gradient(-45deg, transparent 75%, #000 75%);
    background-size: 8px 8px;
    background-position: 0 0, 0 4px, 4px -4px, -4px 0px;
    z-index: 1;
}

.tilemap-square:not(.active):not(.center) canvas {
    position: relative;
    z-index: 2;
}

.tilemap-square.center {
    background: transparent !important;
    cursor: default;
    border: 2px solid #00d9ff !important;
    box-shadow: 0 0 4px rgba(0, 217, 255, 0.3);
}

.tilemap-square.center:hover {
    border-color: var(--accent-tertiary) !important;
    box-shadow: 0 0 6px rgba(0, 217, 255, 0.5);
}

/* Ensure center tile never gets green styling even if active class is added */
.tilemap-square.center.active {
    background: transparent !important;
    border-color: #00d9ff !important;
    box-shadow: 0 0 4px rgba(0, 217, 255, 0.3) !important;
}

.tilemap-square canvas {
    width: 100%;
    height: 100%;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    display: block;
}

.tilemap-controls {
    width: 100%;
}

.tilemap-info {
    text-align: center;
}

/* Ensure the main tile grid containers work with inactive states */
#preview-0-0,
#preview-0-1,
#preview-0-2,
#preview-1-0,
#preview-1-2,
#preview-2-0,
#preview-2-1,
#preview-2-2 {
    transition: opacity 0.2s ease;
}

/* Style for inactive tiles in the main grid */
.tile-grid canvas.inactive {
    opacity: 0.3;
}

/* Add checkerboard pattern for inactive tiles */
.tile-grid canvas.inactive::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* #333 is (51, 51, 51) in RGB. The 0.25 is the 25% transparency. */
    background-image: linear-gradient(45deg, rgba(51, 51, 51, 0.25) 25%, transparent 25%),
        linear-gradient(-45deg, rgba(51, 51, 51, 0.25) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, rgba(51, 51, 51, 0.25) 75%),
        linear-gradient(-45deg, transparent 75%, rgba(51, 51, 51, 0.25) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    z-index: 10;
}

/* Fix for tutorial tab styling issues */
#enableTutorialsSettings,
#showTutorialHints {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
    margin-right: 8px;
}

/* Button styling for tutorial tab */
#startTutorialBtn,
#resetTutorialBtn {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 8px;
    transition: all 0.2s;
}

#startTutorialBtn:hover,
#resetTutorialBtn:hover {
    background: var(--bg-medium);
    border-color: var(--text-secondary);
}

#startTutorialBtn i,
#resetTutorialBtn i {
    font-size: 0.9rem;
}

/* Fix modal width to accommodate tabs */
#unified-settings-modal .modal {
    width: 500px;
    max-width: 90%;
}

/* Ensure property labels have consistent font size */
.property-label {
    font-size: 0.75rem !important;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

/* Tutorial tab specific styling */
.settings-tab-content[data-tab-content="tutorial"] .property-label {
    font-size: 0.75rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

/* Fix for settings modal width */
.modal-content-wrapper {
    min-width: 0;
    width: 100%;
}

/* Ensure all tabs have consistent styling */
.settings-tab-content {
    width: 100%;
    box-sizing: border-box;
}

/* Tab System Styling - Based on pixel3d example */
.settings-tab {
    flex: 1;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 2px solid transparent;
}

.settings-tab:hover {
    color: var(--text-primary);
    background: var(--bg-light);
}

.settings-tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
    font-weight: 600;
}

.settings-tab-content {
    display: none;
    padding: 10px 0;
}

.settings-tab-content.active {
    display: block;
}


/* Settings Tabs Container */
.settings-tabs {
    width: 100%;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.scene-settings-content .property-group {
    background: var(--bg-light);
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.scene-settings-content .property-label {
    font-size: 0.75rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.scene-settings-content input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.scene-settings-content input[type="color"] {
    width: 60px;
    height: 30px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.scene-settings-content select {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.8rem;
    color: var(--text-primary);
    width: 100%;
    margin-top: 6px;
}

.scene-settings-content input[type="number"] {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.8rem;
    color: var(--text-primary);
    width: 100px;
}

/* Button styles for scene settings */
#btn-scene-settings-close {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
}

#btn-scene-settings-close:hover {
    background: var(--bg-medium);
}

#btn-scene-settings-reset {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
}

#btn-scene-settings-reset:hover {
    background: var(--bg-medium);
}

#btn-scene-settings-apply {
    background: var(--accent-primary);
    color: #000;
    border: none;
    font-weight: 600;
}

#btn-scene-settings-apply:hover {
    opacity: 0.9;
}

/* Scene settings tool button */
.tool-btn.scene-settings-tool {
    color: #00d9ff;
}

.tool-btn.scene-settings-tool:hover {
    background: rgba(0, 217, 255, 0.1);
    color: #00d9ff;
}

/* Overlay toggle tool button */
.tool-btn.overlay-toggle-btn {
    color: #ff6b9d;
}

.tool-btn.overlay-toggle-btn:hover {
    background: rgba(255, 107, 157, 0.1);
    color: #ff8fab;
}

/* Overlay toggle active state */
.tool-btn.overlay-toggle-btn.active {
    background: rgba(255, 107, 157, 0.2);
    border-color: rgba(255, 107, 157, 0.4);
}

/* Export Settings Content */
.export-settings-content {
    background: var(--bg-medium);
    padding: 15px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
}