/* ==========================================
   1. CSS VARIABLES (THEME)
   ========================================== */
:root {
    --primary: #1eb6de;
    --primary-dark: #1892b2;
    --light-bg: #f8fcff;
    --border: #e1e5f1;
    --text: #1e293b;
    --text-light: #475569;
    --card-bg: #ffffff;
    --toast-bg: #2c3e50;
    --danger: #e53e3e;
    --danger-dark: #c53030;
    --success: #42b673;
    --success-dark: #23623d;
    --warning: #ed8936;
    --info: #4299e1;
}

[data-theme="dark"] {
    --primary: #1eb6de;
    --primary-dark: #1892b2;
    --light-bg: #292b32;
    --border: #4a4a5a;
    --text: #f1f5f9;
    --text-light: #cbd5e1;
    --card-bg: #1e1f28;
    --toast-bg: #111827;
    --danger: #f56565;
    --danger-dark: #e53e3e;
    --success: #48bb78;
    --success-dark: #38a169;
    --warning: #f6ad55;
    --info: #63b3ed;
}

/* ==========================================
   2. BASE & RESET
   ========================================== */
.mb10 { 
    margin-bottom: 10px !important; 
}

hr.compact { 
    margin: 8px 0 !important; 
}

.container-custom *,
.container-custom *::before,
.container-custom *::after { 
    box-sizing: border-box; 
}

/* ==========================================
   3. CONTAINER LAYOUT
   ========================================== */
.container-custom {
    width: 100%;
    margin: 20px auto;
    background: var(--card-bg);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    max-height: calc(100vh - 40px);
    overflow: hidden;
    position: relative;
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    z-index: 50;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    pointer-events: none;
}

[data-theme="dark"] .loading-overlay { 
    background: rgba(30, 31, 40, 0.85); 
}

.loading-overlay i { 
    font-size: 28px; 
}

/* ==========================================
   4. HEADER
   ========================================== */
.tool-header {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--card-bg);
    border-radius: 6px 6px 0 0;
}

.tool-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.tool-title {
    padding-bottom: 0 !important;
    color: var(--text);
    font-size: 1.1rem;
    font-weight: 600;
}

.tool-subtitle {
    margin: 0;
    color: var(--text-light);
    font-size: 0.75rem;
    line-height: normal;
}

.tool-actions { 
    display: flex; 
    gap: 6px; 
}

.tool-actions .action-btn,
.tool-actions .success-btn,
.tool-actions .danger-btn {
    padding: 6px 12px;
}

/* ==========================================
   5. BUTTONS & ACTIONS
   ========================================== */
.primary-btn,
.action-btn,
.secondary-btn,
.success-btn,
.danger-btn,
.mini-btn,
.seed-btn {
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid transparent;
    padding: 8px 12px;
    white-space: nowrap;
    border-radius: 4px;
    outline: none;
    text-shadow: none !important;
    box-shadow: none !important;
    transform: none !important;
    filter: none !important;
    backdrop-filter: none !important;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.primary-btn { 
    background: var(--primary); 
    color: #ffffff; 
}

.primary-btn:hover, 
.primary-btn:active, 
.primary-btn:focus {
    color: #ffffff;
    background: var(--primary-dark);
    border: 1px solid var(--primary-dark);
    text-shadow: none;
}

.primary-btn i, 
.action-btn i, 
.secondary-btn i, 
.seed-btn i, 
.success-btn i, 
.danger-btn i { 
    font-size: 15px; 
}

.primary-btn i.ci, 
.action-btn i.ci, 
.secondary-btn i.ci, 
.seed-btn i.ci, 
.success-btn i.ci, 
.danger-btn i.ci { 
    font-size: 20px; 
}

.action-btn { 
    background: var(--primary); 
    color: #ffffff; 
}

.action-btn:hover, 
.action-btn:active, 
.action-btn:focus {
    color: #ffffff;
    background: var(--primary-dark);
    border: 1px solid var(--primary-dark);
    text-shadow: none;
}

.secondary-btn {
    background: var(--light-bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.secondary-btn:hover, 
.secondary-btn:active, 
.secondary-btn:focus {
    background: var(--card-bg);
    color: var(--primary);
    border: 1px solid var(--primary);
    text-shadow: none;
}

.secondary-btn:disabled,
.action-btn:disabled,
.danger-btn:disabled,
.success-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--light-bg) !important;
    color: var(--text-light) !important;
    border-color: var(--border) !important;
    text-shadow: none !important;
}

.success-btn { 
    color: #ffffff; 
    background: var(--success); 
    border: 1px solid var(--success); 
}

.success-btn:hover, 
.success-btn:active, 
.success-btn:focus {
    color: #ffffff;
    background: var(--success-dark);
    border: 1px solid var(--success-dark);
    text-shadow: none;
}

.danger-btn { 
    background: var(--danger); 
    color: #ffffff; 
}

.danger-btn:hover, 
.danger-btn:active, 
.danger-btn:focus {
    color: #ffffff;
    background: var(--danger-dark);
    border: 1px solid var(--danger-dark);
    text-shadow: none;
}

#UploadImageBtn i { 
    color: var(--primary); 
}

[data-theme="dark"] #UploadImageBtn i { 
    color: var(--primary); 
}

/* ==========================================
   6. WORKSPACE GRID
   ========================================== */
.tool-workspace {
    display: grid;
    grid-template-columns: 260px 1fr 240px;
    gap: 0;
    flex: 1;
    overflow: hidden;
}

/* ==========================================
   7. PANELS
   ========================================== */
.left-panel, 
.right-panel {
    background: var(--light-bg);
    padding: 5px;
    overflow-y: auto;
    height: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.left-panel::-webkit-scrollbar, 
.right-panel::-webkit-scrollbar { 
    width: 5px; 
}

.left-panel::-webkit-scrollbar-track, 
.right-panel::-webkit-scrollbar-track { 
    background: transparent; 
}

.left-panel::-webkit-scrollbar-thumb, 
.right-panel::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.left-panel::-webkit-scrollbar-thumb:hover, 
.right-panel::-webkit-scrollbar-thumb:hover { 
    background: var(--primary); 
}

.right-panel { 
    position: relative; 
    z-index: 1; 
}

.middle-panel {
    padding: 10px;
    background: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    position: relative;
}

/* ==========================================
   8. PANEL SECTIONS
   ========================================== */
.panel-section {
    margin-bottom: 10px;
    background: var(--card-bg);
    border-radius: 4px;
    border: 1px solid var(--border);
}

.panel-section:last-child { 
    margin-bottom: 0; 
}

.panel-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px;
    cursor: pointer;
    user-select: none;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    background: rgba(147,149,155,.20);
    border-radius: 4px 4px 0 0;
    transition: background 0.15s;
}

.panel-section-header:hover { 
    background: var(--border); 
}

.panel-section-header i { 
    font-size: 9px; 
    color: var(--text-light); 
}

.panel-section-header i.fa-chevron-down { 
    transition: transform 0.2s; 
}

.panel-section.collapsed .panel-section-header i.fa-chevron-down { 
    transform: rotate(-90deg); 
}

.panel-section.collapsed .panel-section-header { 
    border-radius: 4px; 
}

.panel-section-content {
    padding: 5px;
    max-height: 800px;
    overflow: hidden;
    transition: max-height 0.2s ease-in-out, padding 0.2s ease-in-out, opacity 0.15s ease;
    opacity: 1;
}
.panel-section-content p {
    line-height: 20px;
    margin: 0;
}

.panel-section.collapsed .panel-section-content {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    opacity: 0;
}

/* ==========================================
   9. FORM CONTROLS & WRAPS
   ========================================== */
.control-group { 
    margin-bottom: 5px; 
}

.control-group:last-child { 
    margin-bottom: 0; 
}

.control-group label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 2px;
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 0px;
    margin-bottom: 5px;
}

.slider-row:last-child { 
    margin-bottom: 0; 
}

.slider-label {
    font-size: 11px;
    color: var(--text);
    font-weight: 500;
    width: 65px;
    flex-shrink: 0;
}

.slider-value {
    font-size: 10px;
    color: var(--text);
    font-family: monospace;
    width: 25px;
    text-align: right;
    flex-shrink: 0;
}

/* ==========================================
   10. RANGE INPUTS (SLIDERS)
   ========================================== */
.slider-row input[type="range"], 
input[type="range"] {
    flex: 1;
    width: 100%;
    margin: 0;
    padding: 0;
    height: 10px;
    cursor: pointer;
    display: block;
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    margin-top: -8px;
    transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover { 
    transform: scale(1.15); 
}

input[type="range"]::-moz-range-track {
    width: 100%;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.15s;
}

input[type="range"]::-moz-range-thumb:hover { 
    transform: scale(1.15); 
}

/* ==========================================
   11. DROPDOWNS
   ========================================== */
.custom-dropdown { 
    position: relative; 
    width: 100%; 
}

.custom-dropdown-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px 8px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    transition: border-color 0.15s;
    text-shadow: none !important;
    box-shadow: none !important;
    transform: none !important;
}

.custom-dropdown-trigger:hover { 
    border-color: var(--primary); 
}

.custom-dropdown-trigger.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(30, 182, 222, 0.15);
}

.custom-dropdown-trigger i { 
    font-size: 9px; 
    color: var(--primary); 
    transition: transform 0.15s; 
}

.custom-dropdown-trigger.active i { 
    transform: rotate(180deg); 
}

.custom-dropdown-menu {
    position: fixed;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10005;
    display: none;
    max-height: 255px;
    overflow-y: auto;
    min-width: 200px;
}

.custom-dropdown-menu.open { 
    display: block; 
}

.custom-dropdown-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 6px 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    text-align: left;
    outline: none;
    font-family: inherit;
    transition: background 0.15s, color 0.15s;
    text-shadow: none !important;
    box-shadow: none !important;
    transform: none !important;
    text-transform: none !important;
}

.custom-dropdown-item:last-child { 
    border-bottom: none; 
}

.custom-dropdown-item:hover {
    background: var(--light-bg);
    color: var(--primary);
    border: none;
    border-bottom: 1px solid var(--border);
}

.custom-dropdown-item.selected {
    background: rgba(30, 182, 222, 0.1);
    color: var(--primary);
    font-weight: 600;
}

/* ==========================================
   12. PREVIEW & DROP ZONE
   ========================================== */
.preview-canvas {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    object-fit: contain;
    background: transparent;
}

.modified-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    background: transparent;
}

.highlight-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

.selection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 15;
}

.modified-wrapper.checkerboard-active {
    background-image: 
        linear-gradient(45deg, rgba(0,0,0,0.08) 25%, transparent 25%), 
        linear-gradient(-45deg, rgba(0,0,0,0.08) 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, rgba(0,0,0,0.08) 75%), 
        linear-gradient(-45deg, transparent 75%, rgba(0,0,0,0.08) 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

[data-theme="dark"] .modified-wrapper.checkerboard-active {
    background-image: 
        linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%), 
        linear-gradient(-45deg, rgba(255,255,255,0.08) 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.08) 75%), 
        linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.08) 75%);
}

.drop-zone {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: 2px dashed var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
    cursor: pointer;
}

.drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(30, 182, 222, 0.05);
    transform: scale(1.01);
}

.drop-zone-icon { 
    font-size: 48px; 
    color: var(--primary); 
    margin-bottom: 12px; 
    opacity: 0.8; 
}

.drop-zone-title { 
    font-size: 18px; 
    font-weight: 600; 
    color: var(--text); 
    margin-bottom: 6px; 
}

.drop-zone-subtitle { 
    font-size: 13px; 
    color: var(--text-light); 
    margin-bottom: 12px; 
}

.drop-zone-formats {
    font-size: 11px;
    color: var(--text-light);
    background: var(--light-bg);
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.truncate-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    display: block;
    cursor: help;
}

/* ==========================================
   13. COMPARISON CONTAINER & ZOOM/PAN
   ========================================== */
.comparison-container {
    position: relative;
    max-width: 100%;
    max-height: calc(100vh - 120px);
    width: 100%;
    height: 100%;
    margin: 0 auto;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    border-radius: 4px;
    overflow: hidden;
    user-select: none;
    display: none;
    align-items: center;
    justify-content: center;
    background-color: var(--card-bg);
    background-image: 
        linear-gradient(45deg, rgba(0,0,0,0.06) 25%, transparent 25%), 
        linear-gradient(-45deg, rgba(0,0,0,0.06) 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, rgba(0,0,0,0.06) 75%), 
        linear-gradient(-45deg, transparent 75%, rgba(0,0,0,0.06) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

[data-theme="dark"] .comparison-container {
    background-image: 
        linear-gradient(45deg, rgba(255,255,255,0.06) 25%, transparent 25%), 
        linear-gradient(-45deg, rgba(255,255,255,0.06) 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.06) 75%), 
        linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.06) 75%);
}

.comparison-container.zoomed { 
    cursor: grab; 
}

.comparison-container.zoomed:active { 
    cursor: grabbing; 
}

.zoom-wrapper {
  position: relative;
  transform-origin: center center; 
  transition: transform 0.1s ease-out;
  flex-shrink: 0;
}

.comparison-image {
    display: block;
    pointer-events: none;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.original-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    clip-path: inset(0 50% 0 0);
    pointer-events: none;
}

.comparison-slider-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: var(--primary);
    z-index: 30;
    pointer-events: none;
}

.comparison-slider-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    width: 36px;
    height: 36px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    z-index: 31;
    cursor: ew-resize;
    transition: box-shadow 0.15s, background 0.15s;
}

.comparison-slider-handle:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    background: var(--primary-dark);
}

.comparison-label {
    position: absolute;
    top: 10px;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    pointer-events: none;
    z-index: 40;
    display: none;
}

.original-label { 
    left: 65px;
}

.quantized-label { 
    right: 10px; 
}

.tile-count-badge {
    position: absolute;
    background: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    font-size: 11px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
    z-index: 20;
    pointer-events: none;
    display: none;
}

.zoom-indicator {
    position: absolute;
    top: 145px;
    right: 10px;
    background: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    z-index: 40;
    pointer-events: none;
    display: none;
    transition: right 0.2s;
}

.zoom-controls-wrap {
    position: absolute;
    bottom: 15px;
    right: 15px;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 35;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.75);
    padding: 4px 6px;
    border-radius: 4px;
}

.comparison-container:hover .zoom-controls-wrap {
    opacity: 1;
    pointer-events: auto;
}

.zoom-btn {
    background: transparent;
    color: #ffffff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
    text-shadow: none;
    width: 28px;
    height: 28px;
}

.zoom-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    text-shadow: none;
    color: #ffffff;
}

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

.zoom-slider {
    width: 96px;
    height: 4px;
    margin: 0 4px;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    outline: none;
    align-self: center;
}

.zoom-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
}

.zoom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    margin-top: -5px;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.zoom-slider::-moz-range-track {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
}

.zoom-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ==========================================
   14. BORDER & COLOR SETTINGS WRAP
   ========================================== */
.border-settings-wrap {
    display: flex;
    flex-wrap: wrap;
    column-gap: 8px;
    row-gap: 6px;
    background: var(--light-bg);
    padding: 6px 8px;
    border-radius: 4px;
    border: 1px solid var(--border);
    align-items: center;
}

.border-settings-wrap input[type="color"] {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    padding: 0;
    background: none;
    cursor: pointer;
    border-radius: 4px;
    flex-shrink: 0;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.border-settings-wrap input[type="color"]::-webkit-color-swatch-wrapper { 
    padding: 0; 
    border-radius: 3px; 
    overflow: hidden; 
}

.border-settings-wrap input[type="color"]::-webkit-color-swatch { 
    border: none; 
    border-radius: 3px; 
}

.border-settings-wrap input[type="color"]::-moz-color-swatch { 
    border: none; 
}

.border-settings-wrap .color-hex {
    cursor: default;
    font-size: 11px;
    color: var(--text-light);
    font-family: monospace;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.border-toggle-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin-left: auto;
}

.border-toggle-switch .toggle-label { 
    font-size: 11px; 
    color: var(--text); 
}

.border-toggle-switch input { 
    display: none; 
}

.border-toggle-switch .toggle-slider {
    width: 32px;
    height: 18px;
    background-color: var(--border);
    border-radius: 18px;
    position: relative;
    transition: background-color 0.2s;
}

.border-toggle-switch .toggle-slider::before {
    content: "";
    position: absolute;
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: #ffffff;
    border-radius: 50%;
    transition: transform 0.2s;
}

.border-toggle-switch input:checked + .toggle-slider { 
    background-color: var(--primary); 
}

.border-toggle-switch input:checked + .toggle-slider::before { 
    transform: translateX(14px); 
}

/* ==========================================
   15. EXPORT GRID
   ========================================== */
.export-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.export-content-grid button {
    width: 100%;
    padding: 5px 2px;
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==========================================
   16. TOAST & FULLSCREEN
   ========================================== */
#toastContainer {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    max-width: calc(100% - 40px);
}

.toast {
    background: var(--toast-bg);
    color: white;
    padding: 8px 14px;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    margin-top: 6px;
    animation: slideUp 0.2s ease, fadeOut 0.2s ease 2.8s forwards;
    max-width: 280px;
    border-left: 3px solid var(--primary);
    text-shadow: none !important;
}

.toast.success { 
    border-left-color: var(--success); 
}

.toast.error { 
    border-left-color: var(--danger); 
}

@keyframes slideUp {
    from { 
        opacity: 0; 
        transform: translateY(10px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeOut {
    to { 
        opacity: 0; 
        transform: translateY(10px); 
    }
}

.container-custom.is-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    max-height: 100vh;
    margin: 0;
    z-index: 9999;
    box-shadow: none;
    border-radius: 0;
}

.container-custom.is-fullscreen .tool-workspace {
    flex: 1;
    height: calc(100vh - 45px);
}

/* ==========================================
   17. CUSTOM NUMBER INPUTS FOR EXPORT
   ========================================== */
.custom-number-input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 11px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
    -moz-appearance: textfield;
}

.custom-number-input::-webkit-outer-spin-button,
.custom-number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.custom-number-input:focus { 
    border-color: var(--primary); 
}

/* ==========================================
   18. SLIDER ADJUST BUTTONS (+ / -)
   ========================================== */
.slider-adjust-btn {
    width: 20px;
    height: 20px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    flex-shrink: 0;
    transition: color 0.15s;
    text-shadow: none;
}

.slider-adjust-btn i { 
    color: var(--text-light); 
    font-size: 10px; 
}

.slider-adjust-btn:hover { 
    color: var(--primary); 
    background: transparent; 
}

.slider-adjust-btn:active { 
    transform: scale(0.9); 
}

/* ==========================================
   19. ICON SELECTORS (GRID & SHAPE)
   ========================================== */
.icon-selector-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    margin-top: 4px;
}

.icon-selector-btn {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    padding: 0;
    outline: none;
    text-shadow: none;
}

.icon-selector-btn:hover { 
    border-color: var(--primary); 
    background: var(--light-bg); 
}

.icon-selector-btn.active { 
    border-color: var(--primary); 
    background: rgba(30, 182, 222, 0.1); 
}

.icon-selector-btn i {
    font-size: 15px;
    color: var(--text); 
}

.icon-selector-btn svg { 
    width: 24px; 
    height: 24px;
    color: var(--text); 
}

.icon-selector-btn.active svg { 
    color: var(--primary); 
}

/* ==========================================
   20. COLOR SWATCH GRID (MINIMALIST PALETTE)
   ========================================== */
.color-swatch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(24px, 1fr));
    gap: 4px;
    padding: 4px;
}

.color-swatch {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 4px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: transform 0.1s, border-color 0.1s;
    position: relative;
}

.color-swatch:hover {
    transform: scale(1.15);
    border-color: var(--primary);
    z-index: 2;
}

.color-swatch.selected-color {
    border: 2px solid var(--primary);
    transform: scale(1.1);
    box-shadow: 0 0 0 1px var(--card-bg);
}

.color-swatch .swatch-lock-indicator {
    position: absolute;
    top: -3px;
    right: -3px;
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 7px;
    color: #ffffff;
    pointer-events: none;
    z-index: 3;
}

.color-swatch.locked .swatch-lock-indicator {
    display: flex;
}

.color-swatch.isolated {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    z-index: 3;
}

/* ==========================================
   PALETTE BUILDER CONTROLS
   ========================================== */
.palette-builder-controls {
    margin-top: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.palette-builder-row {
    display: flex;
    gap: 4px;
    align-items: center;
}

/* ==========================================
   VIEW MODE TOGGLE (SLIDER VS TOGGLE)
   ========================================== */
.view-mode-toggle {
    position: absolute;
    bottom: 60px;
    right: 15px;
    display: flex;
    background: rgba(0, 0, 0, 0.75);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 35;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.comparison-container:hover .view-mode-toggle {
    opacity: 1;
    pointer-events: auto;
}

.view-mode-btn {
    background: transparent;
    color: #ffffff;
    border: none;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: background 0.15s, color 0.15s;
    text-shadow: none !important;
    box-shadow: none !important;
    transform: none !important;
    filter: none !important;
    backdrop-filter: none !important;
    font-family: inherit;
    outline: none;
}

.view-mode-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    text-shadow: none;
    color: #ffffff;
}

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

/* ==========================================
   FULLSCREEN SCROLLBAR FIX
   ========================================== */
body.tool-is-fullscreen,
html.tool-is-fullscreen {
    overflow: hidden !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* ==========================================
   CANVAS EDITING TOOLBAR
   ========================================== */
.canvas-toolbar {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    z-index: 100;
    background: rgba(0, 0, 0, 0.85);
    padding: 6px 4px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.comparison-container:hover .canvas-toolbar {
    opacity: 1;
    pointer-events: auto;
}

.canvas-tool-btn {
    background: transparent;
    color: #ffffff;
    font-size: 14px;
    padding: 6px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
    width: 32px;
    height: 32px;
    text-shadow: none !important;
    box-shadow: none !important;
    pointer-events: auto;
    margin: 0 1px;
}

.canvas-tool-btn i.ci { 
    font-size: 18px; 
}

.canvas-tool-btn svg { 
    width: 16px; 
    height: 16px; 
    display: block; 
    flex-shrink: 0; 
}

.canvas-tool-btn:first-child { 
    margin-left: 0; 
}

.canvas-tool-btn:last-child { 
    margin-right: 0; 
}

.canvas-tool-btn:hover {
    color: #ffffff;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.15);
    text-shadow: none;
}

.canvas-tool-btn.active { 
    background: var(--primary); 
    color: #ffffff; 
}

.canvas-tool-btn:disabled { 
    opacity: 0.3; 
    cursor: not-allowed;
    border: 1px solid transparent;
    background: none;
}

.canvas-tool-divider { 
    width: 20px; 
    height: 1px; 
    background: rgba(255, 255, 255, 0.2); 
    margin: 4px 0; 
}

.comparison-container.tool-paint, 
.comparison-container.tool-paint.zoomed { 
    cursor: crosshair !important; 
}

.comparison-container.tool-eraser, 
.comparison-container.tool-eraser.zoomed { 
    cursor: crosshair !important; 
}

.comparison-container.tool-pan { 
    cursor: grab; 
}

.comparison-container.tool-pan:active { 
    cursor: grabbing; 
}

/* ==========================================
   MINIMAP NAVIGATOR
   ========================================== */
.minimap-canvas {
    position: absolute;
    top: 45px;
    right: 10px;
    width: 120px;
    height: 90px;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    z-index: 36;
    pointer-events: auto;
    cursor: pointer;
    display: none;
    object-fit: contain;
}

.comparison-container:hover .minimap-canvas {
    display: block;
}

/* ==========================================
   SHORTCUTS MODAL
   ========================================== */
.shortcuts-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}


.shortcuts-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.shortcuts-close-btn {
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 16px;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    transition: color 0.15s, background 0.15s;
    text-shadow: none !important;
    box-shadow: none !important;
}

.shortcuts-close-btn:hover {
    color: var(--danger);
    background: rgba(229, 62, 62, 0.1);
    border: none;
    text-shadow: none;
}

.shortcuts-modal-body {
    padding: 10px 14px;
}

.shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    color: var(--text);
}

.shortcut-row:last-child {
    border-bottom: none;
}

.shortcut-key {
    background: var(--light-bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 2px 8px;
    font-family: monospace;
    font-size: 11px;
    font-weight: 600;
    color: var(--text);
    min-width: 60px;
    text-align: center;
}

/* ==========================================
   COLOR SPLASH PRO — Tool-specific styles only
   All generic UI (buttons, panels, sliders, modals, drop-zone)
   is inherited from the CMS. This file only adds what
   the Color Splash tool genuinely needs.
   Scoped to #ColorSplashToolContainer to prevent leakage.
   ========================================== */

/* ---------- Canvas ---------- */
#ColorSplashToolContainer .censor-canvas {
    display: block;
    pointer-events: auto;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* ---------- Cursor states ---------- */
#ColorSplashToolContainer .comparison-container[data-cursor="crosshair"] .censor-canvas { cursor: crosshair; }
#ColorSplashToolContainer .comparison-container[data-cursor="grab"]      .censor-canvas { cursor: grab; }
#ColorSplashToolContainer .comparison-container[data-cursor="grabbing"]  .censor-canvas { cursor: grabbing; }
#ColorSplashToolContainer .comparison-container[data-cursor="none"]      .censor-canvas { cursor: none; }

/* ---------- Middle panel needs a column layout for canvas + status bar ---------- */
#ColorSplashToolContainer .middle-panel {
    flex-direction: column;
    gap: 4px;
}
#ColorSplashToolContainer .middle-panel > .drop-zone,
#ColorSplashToolContainer .middle-panel > .comparison-container {
    flex: 1;
    width: 100%;
    min-height: 0;
}

/* ---------- Selection rectangle (overlaid on canvas) ---------- */
#ColorSplashToolContainer .selection-rect {
    position: absolute;
    border: 2px dashed var(--primary);
    background: rgba(30, 182, 222, 0.12);
    pointer-events: none;
    display: none;
    box-sizing: border-box;
    border-radius: 1px;
    z-index: 15;
}

#ColorSplashToolContainer .selection-rect .selection-handle,
#ColorSplashToolContainer .selection-rect .selection-rotate-handle {
    position: absolute;
    background: #ffffff;
    border: 2px solid var(--primary);
    border-radius: 50%;
    pointer-events: auto;
    box-sizing: border-box;
    width: var(--handle-size, 10px);
    height: var(--handle-size, 10px);
    transform: translate(-50%, -50%);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
    z-index: 16;
}

#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="nw"] { left: 0;    top: 0;    cursor: nwse-resize; }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="n"]  { left: 50%;  top: 0;    cursor: ns-resize;   }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="ne"] { left: 100%; top: 0;    cursor: nesw-resize; }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="e"]  { left: 100%; top: 50%;  cursor: ew-resize;   }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="se"] { left: 100%; top: 100%; cursor: nwse-resize; }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="s"]  { left: 50%;  top: 100%; cursor: ns-resize;   }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="sw"] { left: 0;    top: 100%; cursor: nesw-resize; }
#ColorSplashToolContainer .selection-rect .selection-handle[data-handle="w"]  { left: 0;    top: 50%;  cursor: ew-resize;   }

#ColorSplashToolContainer .selection-rect .selection-rotate-handle {
    left: 50%;
    top: var(--rotate-offset, -22px);
    cursor: grab;
    background: var(--primary);
    border-color: #ffffff;
}
#ColorSplashToolContainer .selection-rect .selection-rotate-handle:active { cursor: grabbing; }
#ColorSplashToolContainer .selection-rect .selection-rotate-handle::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 35%;
    height: 35%;
    background: #ffffff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}
#ColorSplashToolContainer .selection-rect.creating .selection-handle,
#ColorSplashToolContainer .selection-rect.creating .selection-rotate-handle {
    opacity: 0;
    pointer-events: none;
}

/* ---------- Mask overlay canvas (over the editor canvas) ---------- */
#ColorSplashToolContainer .mask-overlay-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: none;
    z-index: 14;
    /* Professional overlay pattern */
    background-image: 
        linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%), 
        linear-gradient(-45deg, rgba(255,255,255,0.08) 25%, transparent 25%), 
        linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.08) 75%), 
        linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.08) 75%);
    background-size: 4px 4px;
    background-position: 0 0, 0 2px, 2px -2px, -2px 0px;
}

/* ---------- Lasso live-preview overlay ---------- */
#ColorSplashToolContainer .lasso-overlay-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: none;
    z-index: 18;
}

/* ---------- Brush cursor overlay ---------- */
#ColorSplashToolContainer .brush-cursor {
    position: absolute;
    top: 0; left: 0;
    width: 0; height: 0;
    border-radius: 50%;
    pointer-events: none;
    display: none;
    transform: translate(-50%, -50%);
    box-sizing: border-box;
    z-index: 25;
    border: 1.5px solid rgba(30, 182, 222, 0.9);
    background: rgba(30, 182, 222, 0.10);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.65),
        inset 0 0 0 1px rgba(255, 255, 255, 0.35);
    transition: width 0.06s ease-out, height 0.06s ease-out, background 0.12s ease-out;
}
/* Eraser cursor is gray to indicate returning to grayscale */
#ColorSplashToolContainer .brush-cursor.eraser {
    border-color: rgba(150, 150, 155, 0.9);
    background: rgba(150, 150, 155, 0.10);
}
#ColorSplashToolContainer .brush-cursor.visible { display: block; }

#ColorSplashToolContainer .brush-shape-icon {
    display: inline-block;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border: 1.5px solid var(--primary);
    border-radius: 50%;
    flex-shrink: 0;
    margin-left: 6px;
    box-sizing: border-box;
    transition: border-radius 0.08s linear;
    vertical-align: middle;
}

/* ---------- Status bar under the canvas ---------- */
#ColorSplashToolContainer .censor-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 4px 0;
    font-size: 11px;
    color: var(--text-light);
    gap: 8px;
    flex-wrap: wrap;
    width: 100%;
}
#ColorSplashToolContainer .censor-status-bar .info {
    display: flex;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}
#ColorSplashToolContainer .censor-status-bar .info span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
#ColorSplashToolContainer .censor-status-bar i { color: var(--primary); }

#ColorSplashToolContainer .censor-badge {
    background: rgba(66, 182, 115, 0.12);
    color: var(--success-dark);
    padding: 2px 9px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
}

/* ---------- Effect parameters block (merged into Color panel) ---------- */
#ColorSplashToolContainer .effect-params {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    animation: colorSplashFadeIn 0.15s ease-out;
}
#ColorSplashToolContainer .effect-params .slider-row { margin-bottom: 5px; }

@keyframes colorSplashFadeIn {
    from { opacity: 0; transform: translateY(-3px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Compare button pressed state ---------- */
#ColorSplashToolContainer .canvas-tool-btn.comparing {
    background: var(--primary);
    color: #ffffff;
}

/* ---------- Generic hide helper ---------- */
#ColorSplashToolContainer .is-hidden {
    display: none !important;
}

/* ---------- Shortcuts modal — category headers ---------- */
#ColorSplashShortcutsModal .shortcut-category {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 10px 0 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}
/* ==========================================
   HELP & SHORTCUTS MODAL — responsive layout
   ========================================== */

#ColorSplashShortcutsModal .shortcuts-modal {
    width: min(1040px, 94vw);
    max-width: 94vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}


/* Solid backdrop — darker on dark theme, lighter on light theme */
#ColorSplashShortcutsModal.shortcuts-modal-overlay {
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

[data-theme="dark"] #ColorSplashShortcutsModal.shortcuts-modal-overlay {
    background: rgba(0, 0, 0, 0.7);
}

#ColorSplashShortcutsModal .shortcuts-modal-header {
    flex-shrink: 0;
}

#ColorSplashShortcutsModal .shortcuts-modal-body {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px 28px;
    align-items: start;
    overflow-y: auto;
    padding: 14px 20px 18px;
    max-height: none;
    background: var(--card-bg);
}

#ColorSplashShortcutsModal .shortcut-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
    break-inside: avoid;
}

#ColorSplashShortcutsModal .shortcut-group .shortcut-category {
    padding-top: 0;
    margin-top: 0;
    margin-bottom: 6px;
}

#ColorSplashShortcutsModal .shortcut-group .shortcut-row:last-child {
    border-bottom: none;
}

/* Tips rows use an icon instead of a key */
#ColorSplashShortcutsModal .shortcut-row > i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 20px;
    font-size: 13px;
}
#ColorSplashShortcutsModal .shortcut-row > i + span {
    flex: 1;
    margin-left: 6px;
    text-align: left;
    font-size: 12px;
    color: var(--text);
    line-height: 1.4;
}
#ColorSplashShortcutsModal .shortcut-row > i + span b {
    font-weight: 600;
    color: var(--primary);
}

/* ---------- Tablet: 2 columns ---------- */
@media (max-width: 900px) {
    #ColorSplashShortcutsModal .shortcuts-modal {
        width: min(680px, 92vw);
    }
    #ColorSplashShortcutsModal .shortcuts-modal-body {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px 22px;
        padding: 12px 16px 16px;
    }
}

/* ---------- Mobile: single column, near full-screen ---------- */
@media (max-width: 560px) {
    #ColorSplashShortcutsModal .shortcuts-modal {
        width: 94vw;
        max-width: 94vw;
        max-height: 92vh;
    }
    #ColorSplashShortcutsModal .shortcuts-modal-body {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 10px 14px 14px;
    }
    #ColorSplashShortcutsModal .shortcuts-modal-header {
        padding: 10px 14px;
        font-size: 13px;
    }
    #ColorSplashShortcutsModal .shortcut-category {
        padding: 8px 0 4px;
    }
    #ColorSplashShortcutsModal .shortcut-row {
        padding: 5px 0;
    }
}

/* ---------- Transform panel — 4 buttons on one line ---------- */
#ColorSplashToolContainer .transform-btn-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
}

/* ---------- Toggle rows ---------- */
#ColorSplashToolContainer .toggle-group {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
#ColorSplashToolContainer .toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
#ColorSplashToolContainer .toggle-row-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
}
#ColorSplashToolContainer .toggle-row .border-toggle-switch {
    margin-left: 0;
}

#ColorSplashToolContainer input[type="range"]:focus {
    outline: none;
}


#ColorSplashToolContainer input[type="range"]:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}





/* ==========================================
   SELECTIVE COLOR CHANGER — additions
   ========================================== */

/* New color picker row */
#ColorSplashToolContainer .color-picker-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
#ColorSplashToolContainer .color-picker-row .slider-label {
    width: 65px;
    flex-shrink: 0;
}
#ColorSplashToolContainer .color-picker-row .slider-value {
    width: 62px;
    text-align: left;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
#ColorSplashToolContainer .color-picker-row input[type="color"] {
    flex: 1;
    height: 26px;
    min-width: 0;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    background: none;
    -webkit-appearance: none;
    appearance: none;
    transition: border-color 0.15s;
}
#ColorSplashToolContainer .color-picker-row input[type="color"]:hover {
    border-color: var(--primary);
}
#ColorSplashToolContainer .color-picker-row input[type="color"]::-webkit-color-swatch-wrapper { padding: 2px; }
#ColorSplashToolContainer .color-picker-row input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}
#ColorSplashToolContainer .color-picker-row input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 3px;
}
/* Default (desktop, 260px left panel):
   8 fixed-width columns → exactly 2 rows, capped at 26px */
#ColorSplashToolContainer .color-swatch-row {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 26px));
    gap: 4px;
    margin-bottom: 8px;
    justify-content: flex-start;
}

/* Tablet (panels go full-width): 16 columns → all swatches on 1 row,
   stretched across the panel so there is no empty gap on the right */
@media (min-width: 561px) and (max-width: 900px) {
    #ColorSplashToolContainer .color-swatch-row {
        grid-template-columns: repeat(16, minmax(0, 1fr));
        justify-content: stretch;
    }
    #ColorSplashToolContainer .color-preset {
        max-width: 40px;
        justify-self: stretch;
    }
}
/* Quick swatch row — fixed 8-column grid = always 2 rows, never wraps to a 3rd */
#ColorSplashToolContainer .color-swatch-row {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 4px;
    margin-bottom: 8px;
}
#ColorSplashToolContainer .color-preset {
    width: 100%;
    aspect-ratio: 1 / 1;
    min-width: 0;
    border-radius: 4px;
    border: 1px solid var(--border);
    cursor: pointer;
    padding: 0;
    transition: transform 0.1s, border-color 0.1s, box-shadow 0.1s;
    box-shadow: none;
    text-shadow: none;
}
#ColorSplashToolContainer .color-preset:hover {
    transform: scale(1.15);
    border-color: var(--primary);
    z-index: 2;
}
#ColorSplashToolContainer .color-preset.active {
    border: 2px solid var(--primary);
    transform: scale(1.12);
    box-shadow: 0 0 0 1px var(--card-bg);
}

/* Blend mode dropdown row */
#ColorSplashToolContainer .blend-mode-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
#ColorSplashToolContainer .blend-mode-row .slider-label {
    width: 65px;
    flex-shrink: 0;
}
#ColorSplashToolContainer .blend-mode-select {
    flex: 1;
    height: 26px;
    min-width: 0;
    padding: 0 6px;
    font-size: 11px;
    font-family: inherit;
    font-weight: 500;
    color: var(--text);
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.15s;
    text-shadow: none !important;
    box-shadow: none !important;
}
#ColorSplashToolContainer .blend-mode-select:hover,
#ColorSplashToolContainer .blend-mode-select:focus {
    border-color: var(--primary);
}



/* Magic Wand — selection mode button group */
#ColorSplashToolContainer .wand-mode-group {
    display: flex;
    gap: 3px;
    flex: 1;
}
#ColorSplashToolContainer .wand-mode-btn {
    flex: 1;
    height: 26px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    color: var(--text);
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
    text-shadow: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
#ColorSplashToolContainer .wand-mode-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    pointer-events: none;
}
#ColorSplashToolContainer .wand-mode-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
#ColorSplashToolContainer .wand-mode-btn.active {
    border-color: var(--primary);
    background: rgba(30, 182, 222, 0.12);
    color: var(--primary);
}



/* ---------- Preset row ---------- */
#ColorSplashToolContainer .preset-row {
    display: flex;
    gap: 4px;
    align-items: center;
    margin-bottom: 8px;
}
#ColorSplashToolContainer .preset-row .blend-mode-select {
    flex: 1;
    min-width: 0;
}
#ColorSplashToolContainer .mini-btn {
    width: 26px;
    height: 26px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}
#ColorSplashToolContainer .mini-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--light-bg);
}
#ColorSplashToolContainer .mini-btn i { font-size: 11px; }


#ColorSplashToolContainer .mini-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    border-color: var(--border);
    color: var(--text-light);
    background: var(--light-bg);
}
#ColorSplashToolContainer .mini-btn:disabled:hover {
    border-color: var(--border);
    color: var(--text-light);
    background: var(--light-bg);
}




/* ---------- Selection Ops toolbar ---------- */
#ColorSplashToolContainer .selection-ops-toolbar {
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 3px;
    background: rgba(0, 0, 0, 0.85);
    padding: 4px 6px;
    border-radius: 6px;
    z-index: 100;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}
#ColorSplashToolContainer .comparison-container:hover .selection-ops-toolbar,
#ColorSplashToolContainer .comparison-container.force-toolbar .selection-ops-toolbar {
    opacity: 1;
    pointer-events: auto;
}
#ColorSplashToolContainer .sel-ops-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: transparent;
    color: #ffffff;
    border: none;
    padding: 5px 9px;
    border-radius: 4px;
    font-size: 11px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-shadow: none;
}
#ColorSplashToolContainer .sel-ops-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border: none;
}
#ColorSplashToolContainer .sel-ops-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}
#ColorSplashToolContainer .sel-ops-btn i { font-size: 12px; }
#ColorSplashToolContainer .sel-ops-btn span { font-size: 11px; }

/* ---------- Refine Edge popover ---------- */
#ColorSplashToolContainer .refine-popover {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    z-index: 110;
}
#ColorSplashToolContainer .refine-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
}
#ColorSplashToolContainer .refine-header i { color: var(--primary); margin-right: 6px; }
#ColorSplashToolContainer .refine-close {
    background: transparent;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 3px;
    text-shadow: none;
}
#ColorSplashToolContainer .refine-close:hover { color: var(--danger); }
#ColorSplashToolContainer .refine-body { padding: 8px 12px; }
#ColorSplashToolContainer .refine-footer {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    padding: 8px 12px;
    border-top: 1px solid var(--border);
}
#ColorSplashToolContainer .refine-footer .action-btn { padding: 5px 10px; font-size: 11px; }

/* ---------- Clone source marker ---------- */
#ColorSplashToolContainer .clone-source-marker {
    position: absolute;
    width: 22px;
    height: 22px;
    transform: translate(-50%, -50%);
    color: #22c55e;
    pointer-events: none;
    z-index: 30;
    filter: drop-shadow(0 0 2px rgba(0, 0, 0, 0.7));
    font-size: 22px;
    line-height: 22px;
    text-align: center;
    opacity: 0.9;
}
#ColorSplashToolContainer .clone-source-marker::before {
    content: '';
    position: absolute;
    inset: -4px;
    border: 1.5px dashed #22c55e;
    border-radius: 50%;
    opacity: 0.6;
    animation: clonePulse 1.6s ease-in-out infinite;
}
@keyframes clonePulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.15); opacity: 0.3; }
}

/* Cursor for clone mode */
#ColorSplashToolContainer .comparison-container.tool-clone,
#ColorSplashToolContainer .comparison-container.tool-clone .censor-canvas {
    cursor: crosshair;
}

/* Quick mask active indicator */
#ColorSplashToolContainer .comparison-container.quick-mask-on {
    box-shadow: inset 0 0 0 2px rgba(229, 62, 62, 0.45);
}



#ColorSplashShortcutsModal .shortcut-row > i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
#ColorSplashShortcutsModal .shortcut-row > i + span {
    flex: 1;
    margin-left: 12px;
    text-align: left;
}




/* ==========================================
   COLLAPSIBLE PANELS
   ========================================== */

/* Workspace uses CSS variables for panel widths so they can animate */
#ColorSplashToolContainer .tool-workspace {
    grid-template-columns: var(--left-panel-w, 260px) 1fr var(--right-panel-w, 240px);
    transition: grid-template-columns 0.22s ease;
    position: relative;
}

/* When a panel is collapsed, kill its padding/border so nothing shows */
#ColorSplashToolContainer .left-panel.is-collapsed,
#ColorSplashToolContainer .right-panel.is-collapsed {
    padding: 0;
    border: none;
    overflow: hidden;
}

/* ---------- Header toggle button state ---------- */
#ColorSplashToolContainer #ToggleLeftPanelBtn.active,
#ColorSplashToolContainer #ToggleRightPanelBtn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}
#ColorSplashToolContainer #ToggleLeftPanelBtn.active i,
#ColorSplashToolContainer #ToggleRightPanelBtn.active i {
    color: #ffffff;
}

/* ---------- Edge handle (thin strip attached to panel inner edge) ---------- */
#ColorSplashToolContainer .panel-edge-handle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 52px;
    display: none;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-light);
    font-size: 9px;
    cursor: pointer;
    z-index: 10;
    transition: left 0.22s ease, right 0.22s ease,
                background 0.15s, color 0.15s, border-color 0.15s;
}

#ColorSplashToolContainer .panel-edge-handle-left {
    left: var(--left-panel-w, 260px);
    border-left: none;
    border-radius: 0 4px 4px 0;
}

#ColorSplashToolContainer .panel-edge-handle-right {
    right: var(--right-panel-w, 240px);
    border-right: none;
    border-radius: 4px 0 0 4px;
}

#ColorSplashToolContainer .panel-edge-handle:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* Rotate the chevron when a panel is collapsed */
#ColorSplashToolContainer .panel-edge-handle-left.is-collapsed i {
    transform: rotate(180deg);
}
#ColorSplashToolContainer .panel-edge-handle-right.is-collapsed i {
    transform: rotate(180deg);
}

/* Show edge handles only on desktop */
@media (min-width: 901px) {
    #ColorSplashToolContainer .panel-edge-handle {
        display: flex;
    }
}

/* Hide toggle buttons on tablet/mobile (panels are stacked there) */
@media (max-width: 900px) {
    #ColorSplashToolContainer #ToggleLeftPanelBtn,
    #ColorSplashToolContainer #ToggleRightPanelBtn {
        display: none !important;
    }
}



/* ---------- Responsive tweak ---------- */
@media (max-width: 900px) {
    #ColorSplashToolContainer .middle-panel { min-height: 380px; }
    #ColorSplashToolContainer #FullscreenBtn {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .tool-title,
    .tool-subtitle {
        display: none;
    }
}

@media (max-height: 800px) {
    .container-custom { 
        margin: 10px auto; 
        max-height: calc(100vh - 20px); 
        border-radius: 6px; 
    }
    .tool-header { 
        padding: 6px 12px; 
    }
    .panel-section-content { 
        padding: 4px; 
    }
}

@media (max-width: 900px) {
    .container-custom { 
        max-height: none; 
        height: auto; 
        overflow: visible; 
    }
    .tool-workspace { 
        grid-template-columns: 1fr; 
        overflow: visible; 
        height: auto; 
    }
    .left-panel, 
    .right-panel { 
        border: none; 
        border-bottom: 1px solid var(--border); 
        overflow-y: visible; 
        height: auto; 
    }
    .middle-panel { 
        padding: 10px; 
        overflow: visible; 
        align-items: center; 
    }
    .drop-zone { 
        min-height: 300px; 
    }
    .comparison-container { 
        max-height: 60vh; 
        height: 60vh; 
        min-height: 300px; 
        margin: 0; 
    }
    .container-custom.is-fullscreen .comparison-container { 
        max-height: calc(100vh - 80px); 
        height: calc(100vh - 80px); 
    }
}