#gallery {
    --gallery-shell-max: 1180px;
    --gallery-shell-gutter: 32px;
    --gallery-feature-gap: 22px;
    --gallery-heading-gap: 12px;

    --cs-controls-width: 380px;
    --cs-visual-min-width: 520px;
    --cs-layout-gap: 18px;
    --cs-stack-gap: 16px;
    --cs-control-gap: 8px;
    --cs-panel-padding: 15px;
    --cs-panel-radius: 16px;
    --cs-stage-radius: 13px;
    --cs-field-radius: 10px;
    --cs-pill-radius: 999px;
    --cs-source-min-height: 220px;
    --cs-source-max-height: 460px;
    --cs-viewer-aspect: 1 / 1;
    --cs-sticky-top: 72px;
    --cs-border: 1px solid var(--line);
    --cs-strong-border: 1px solid var(--line-strong);
    --cs-transition: 0.16s ease;

    overflow: visible;
}

#gallery .gallery-shell {
    width: min(var(--gallery-shell-max), calc(100vw - var(--gallery-shell-gutter)));
    margin: 0 50%;
    transform: translateX(-50%);
}

#gallery .gallery-feature-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--gallery-heading-gap);
    margin: var(--gallery-feature-gap) 0 16px;
    padding-bottom: 10px;
}

#gallery .gallery-feature-heading-color {
    margin-top: 28px;
}

#gallery .gallery-feature-title {
    min-width: 0;
    display: flex;
    align-items: baseline;
    gap: 9px;
}

#gallery .gallery-feature-number {
    flex: 0 0 auto;
    color: var(--accent);
    font-size: 0.67rem;
    font-weight: 750;
    letter-spacing: 0.06em;
}

#gallery .gallery-feature-heading h3 {
    margin: 0;
    color: var(--ink);
    font-size: 1.02rem;
    line-height: 1.3;
}

#gallery .gallery-feature-heading>p {
    max-width: 740px;
    margin: 0;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.45;
    text-align: right;
}

#galleryArena {
    max-width: 1080px;
    margin: 0 auto;
}

#galleryArena .arena-container {
    margin: 0 auto;
    padding-top: 6px;
}

#galleryColorSpace {
    width: 100%;
}

#gallery .cs-atlas,
#gallery .cs-atlas * {
    box-sizing: border-box;
}

/* #gallery .cs-atlas button, */
#gallery .cs-atlas select,
#gallery .cs-atlas input {
    font: inherit;
}

#gallery .cs-four-column {
    display: grid;
    grid-template-columns:
        minmax(260px, var(--cs-controls-width)) minmax(var(--cs-visual-min-width), 1fr);
    grid-template-areas: "mapping visual";
    gap: var(--cs-layout-gap);
    align-items: start;
}

#gallery .cs-visual-column {
    grid-area: visual;
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--cs-stack-gap);
}

#gallery .cs-mapping-panel {
    grid-area: mapping;
    position: sticky;
    top: var(--cs-sticky-top);
    align-self: start;
    height: fit-content;
    max-height: var(
        --cs-mapping-max-height,
        calc(100vh - var(--cs-sticky-top) - 16px)
    );
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: color-mix(in srgb, var(--muted) 35%, transparent) transparent;
}

#gallery .cs-input-panel,
#gallery .cs-viewer-panel,
#gallery .cs-mapping-panel {
    width: 100%;
    min-width: 0;
}

#gallery .cs-panel {
    padding: var(--cs-panel-padding);
    border-radius: var(--cs-panel-radius);
    background: var(--surface);
}

#gallery .cs-panel.settings {
    border: var(--cs-border);
    box-shadow: 0 0px 12px -2px var(--shadow);
    /* background: var(--surface-2); */
}

#gallery .cs-combined-panel {
    display: flex;
    flex-direction: column;
    gap: var(--cs-stack-gap);
}

#gallery .cs-point-cloud-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--cs-stack-gap);
}

#gallery .cs-point-cloud-col {
    display: flex;
    flex-direction: column;
    gap: 11px;
    min-height: 0;
}

#gallery .cs-point-cloud-col .cs-viewer-stage {
    margin-top: auto;
}

#gallery .cs-point-cloud-col .cs-panel-head {
    margin-bottom: 0;
}

#gallery .cs-panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 11px;
}

#gallery .cs-panel-head h3 {
    margin: 0;
    color: var(--ink);
    font-size: 0.92rem;
    line-height: 1.25;
}

#gallery .cs-pill,
#gallery .cs-live-pill {
    flex: 0 0 auto;
    max-width: 240px;
    overflow: hidden;
    border: var(--cs-border);
    border-radius: var(--cs-pill-radius);
    color: var(--muted);
    background: var(--surface-2);
    font-size: 0.62rem;
    font-weight: 700;
    line-height: 1;
    padding: 6px 8px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#gallery .cs-live-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 24%, var(--line));
    background: var(--accent-soft);
}

#gallery .cs-live-pill i,
#gallery .cs-status span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}

#gallery .cs-drop-zone {
    position: relative;
    width: 100%;
    height: clamp(var(--cs-source-min-height), 18.5vw, var(--cs-source-max-height));
    display: grid;
    place-items: center;
    padding: 12px;
    overflow: hidden;
    border: var(--cs-strong-border);
    border-radius: var(--cs-stage-radius);
    background: var(--surface-2);
    cursor: pointer;
}

#gallery .cs-drop-zone.is-dragging {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

#gallery #previewCanvas {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    flex: none;
    border-radius: calc(var(--cs-stage-radius) - 3px);
    object-fit: contain;
}

#gallery .cs-drop-overlay {
    position: absolute;
    left: 9px;
    right: 9px;
    bottom: 9px;
    display: grid;
    gap: 1px;
    padding: 6px 9px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 9px;
    color: #fff;
    background: rgba(10, 11, 14, 0.36);
    backdrop-filter: blur(10px);
}

#gallery #previewCanvas {
    cursor: zoom-in;
}

.cs-image-lightbox {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999 !important;
    display: none !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: hidden !important;
    background: rgba(250, 250, 250, 0.85) !important;
    backdrop-filter: blur(20px) saturate(180%) !important;
    -webkit-backdrop-filter: blur(20px) saturate(180%) !important;
    cursor: zoom-out;
}

[data-theme="dark"] .cs-image-lightbox {
    background: rgba(34, 34, 40, 0.85) !important;
}

.cs-image-lightbox.is-active {
    display: flex !important;
}

.cs-image-lightbox img {
    max-width: 92vw !important;
    max-height: calc(100% - 60px) !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain !important;
    transform-origin: center center;
    cursor: grab;
    user-select: none;
    -webkit-user-drag: none;
}

.cs-image-lightbox img:active {
    cursor: grabbing;
}

#gallery .cs-drop-overlay strong {
    font-size: 0.72rem;
}

#gallery .cs-drop-overlay small {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.6rem;
}

#gallery .cs-panel-note {
    min-height: 32px;
    margin: 0 0 0px;
    color: var(--muted);
    font-size: 0.68rem;
    line-height: 1.5;
    text-align: left;
}

#gallery .cs-viewer-stage {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 0;
    aspect-ratio: var(--cs-viewer-aspect);
    flex: none;
    overflow: hidden;
    border: 1px solid #292d33;
    border-radius: var(--cs-stage-radius);
    background: #0d0f12;
    cursor: grab;
    touch-action: none;
}

#gallery .cs-viewer-stage.is-light {
    border-color: var(--line-strong);
    background: #f3f3ef;
}

#gallery .cs-viewer-stage:active {
    cursor: grabbing;
}

#gallery .cs-viewer-stage canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#gallery .cs-viewer-hint {
    position: absolute;
    top: 9px;
    left: 9px;
    z-index: 2;
    max-width: calc(100% - 18px);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--cs-pill-radius);
    color: rgba(255, 255, 255, 0.66);
    background: rgba(8, 9, 11, 0.62);
    font-size: 0.56rem;
    font-weight: 700;
    line-height: 1;
    padding: 6px 8px;
    pointer-events: none;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#gallery .cs-viewer-stage.is-light .cs-viewer-hint {
    color: rgba(20, 20, 18, 0.62);
    border-color: rgba(20, 20, 18, 0.1);
    background: rgba(255, 255, 255, 0.8);
}

#gallery .cs-axis-gizmo {
    position: absolute;
    right: 8px;
    bottom: 8px;
    z-index: 2;
    display: none;
    width: 64px;
    height: 64px;
    pointer-events: none;
}

#gallery .cs-viewer-stage.show-axis-labels .cs-axis-gizmo {
    display: block;
}

#gallery .cs-axis-gizmo svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

#gallery .cs-axis-gizmo {
    --axis-x: #ff3553;
    --axis-y: #8adb00;
    --axis-z: #2a8fff;
}

#gallery .cs-axis-gizmo .axis-dot[data-dir="positive"] {
    r: 5;
}

#gallery .cs-axis-gizmo .axis-dot[data-dir="negative"] {
    r: 4;
}

#gallery .cs-axis-gizmo .axis-line {
    stroke-width: 2;
    stroke-linecap: round;
}

#gallery .cs-axis-gizmo .axis-x {
    color: var(--axis-x);
    stroke: var(--axis-x);
    fill: var(--axis-x);
}

#gallery .cs-axis-gizmo .axis-y {
    color: var(--axis-y);
    stroke: var(--axis-y);
    fill: var(--axis-y);
}

#gallery .cs-axis-gizmo .axis-z {
    color: var(--axis-z);
    stroke: var(--axis-z);
    fill: var(--axis-z);
}

#gallery .cs-axis-gizmo .axis-label {
    font-size: 10px;
    /* font-weight: bold; */
    pointer-events: none;
    fill: var(--bg) !important;

    stroke: none !important;
    stroke-width: 0;
}

#gallery .cs-viewer-stage.is-light .cs-axis-gizmo {
    --axis-x: #d9363e;
    --axis-y: #389e0d;
    --axis-z: #096dd9;
}

#gallery .cs-viewer-stage.is-light .cs-axis-gizmo .axis-x {
    color: var(--axis-x);
    stroke: var(--axis-x);
    fill: var(--axis-x);
}

#gallery .cs-viewer-stage.is-light .cs-axis-gizmo .axis-y {
    color: var(--axis-y);
    stroke: var(--axis-y);
    fill: var(--axis-y);
}

#gallery .cs-viewer-stage.is-light .cs-axis-gizmo .axis-z {
    color: var(--axis-z);
    stroke: var(--axis-z);
    fill: var(--axis-z);
}



#gallery .cs-segmented {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
    padding: 4px;
    border: var(--cs-border);
    border-radius: 11px;
    background: var(--surface-2);
}

#gallery .cs-space-tabs-top {
    position: relative;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 6px;
    margin-bottom: 16px;
    padding: 6px;
    border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
    border-radius: 14px;
    isolation: isolate;
    background: color-mix(in srgb, var(--accent) 4%, var(--surface-2));
    box-shadow: 0 0px 8px -1px var(--shadow);
}

#gallery .cs-space-tabs-top::before {
    content: none;
}

#gallery .cs-seg-button {
    min-height: 30px;
    padding: 4px 6px;
    border: 0;
    border-radius: 8px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font-size: 0.64rem;
    font-weight: 750;
    position: relative;
}

#gallery .cs-space-tabs-top .cs-seg-button {
    min-height: 40px;
    padding: 7px 10px;
    border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
    border-radius: 10px;
    background: var(--surface);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.025em;
    transition:
        transform var(--cs-transition),
        color var(--cs-transition),
        border-color var(--cs-transition),
        background-color var(--cs-transition),
        box-shadow var(--cs-transition);
}

#gallery .cs-seg-button::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
    transition: width 0.25s ease;
}

#gallery .cs-seg-button:hover {
    color: var(--ink);
}

#gallery .cs-seg-button:hover::after {
    width: 60%;
}

#gallery .cs-space-tabs-top .cs-seg-button:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
    background: color-mix(in srgb, var(--accent) 7%, var(--surface));
}

#gallery .cs-seg-button.is-active {
    color: var(--accent);
    background: transparent;
    box-shadow: none;
}

#gallery .cs-seg-button.is-active::after {
    width: 80%;
}

#gallery .cs-space-tabs-top .cs-seg-button.is-active {
    color: var(--accent-text, #fff);
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 7px 16px -13px color-mix(in srgb, var(--accent) 82%, var(--shadow));
}

#gallery .cs-space-tabs-top .cs-seg-button.is-active::after {
    width: 42%;
    bottom: 4px;
    height: 2px;
    background: color-mix(in srgb, var(--accent-text, #fff) 72%, transparent);
}

#gallery .cs-summary {
    margin-top: 10px;
    padding: 11px;
    border: var(--cs-border);
    border-radius: 11px;
    background: color-mix(in srgb, var(--accent) 4%, var(--surface));
}

#gallery .cs-summary h4 {
    margin: 0 0 8px;
    color: var(--ink);
    font-size: 0.78rem;
    line-height: 1.35;
}

#gallery .cs-summary .text {
    text-align: justify;
    text-align-last: left;

    hyphens: auto;
    -webkit-hyphens: auto;

    overflow-wrap: break-word;
    word-break: normal;
}

#gallery .cs-axis-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

#gallery .cs-axis-chips span {
    border: var(--cs-border);
    border-radius: var(--cs-pill-radius);
    color: var(--muted);
    background: var(--surface);
    font-size: 0.54rem;
    font-weight: 700;
    padding: 5px 6px;
}

#gallery .cs-summary p {
    margin: 8px 0;
    color: var(--muted);
    font-size: 0.63rem;
    line-height: 1.5;
    text-align: left;
}

#gallery .cs-formula-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 4px auto 0;
    padding: 2px;
    border: none;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    transition: color 0.15s ease;
}

#gallery .cs-formula-toggle:hover {
    color: var(--accent);
}

#gallery .cs-formula-toggle .cs-toggle-icon {
    transition: transform 0.2s ease;
}

#gallery .cs-formula-toggle[aria-expanded="true"] .cs-toggle-icon {
    transform: rotate(180deg);
}

#gallery .cs-conversion-grid {
    max-height: 600px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
    opacity: 1;
    margin-top: 6px;
}

#gallery .cs-conversion-grid.cs-is-collapsed {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
}

#gallery .cs-formula-box {
    display: grid;
    gap: 2px;
    overflow-x: auto;
    border: var(--cs-border);
    border-radius: 9px;
    color: var(--ink);
    background: var(--surface);
    font-size: 0.66rem;
    line-height: 1.45;
    padding: 8px 10px;
}

#gallery .cs-formula-line {
    display: block;
    min-width: max-content;
    text-align: left;
}

#gallery .cs-formula-line mjx-container[display="true"] {
    margin: 0.18em 0 !important;
    text-align: left !important;
}

#gallery .cs-control-label {
    margin: 16px 1px 8px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.2;
    text-transform: uppercase;
}



#gallery .cs-settings-stack,
#gallery .cs-mini-grid {
    display: grid;
    gap: var(--cs-control-gap);
    margin-top: 0;
}

#gallery .cs-field {
    min-width: 0;
    display: grid;
    gap: 5px;
    padding: 9px 10px;
    border: var(--cs-border);
    border-radius: var(--cs-field-radius);
    background: var(--surface-2);
}

#gallery .cs-field>span {
    color: var(--muted);
    font-size: 0.64rem;
    font-weight: 700;
}

#gallery .cs-field select {
    width: 100%;
    border: 1px solid var(--line);
    outline: 0;
    color: var(--ink);
    background: var(--surface);
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 8px 12px 8px 12px;
    border-radius: var(--cs-field-radius);
    appearance: none;
    position: relative;
    transition: border-color var(--cs-transition), box-shadow var(--cs-transition);
}

#gallery .cs-field select::-ms-expand {
    display: none;
}

#gallery .cs-field {
    position: relative;
}

#gallery .cs-field select:hover {
    border-color: var(--accent);
}

#gallery .cs-field select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 20%, transparent);
}

#gallery .cs-field select option {
    padding: 8px 12px;
    background: var(--surface);
    color: var(--ink);
    font-size: 0.72rem;
    font-weight: 500;
}

#gallery .cs-field select option:hover {
    background: var(--accent);
    color: white;
}

#gallery .cs-field select option:checked {
    background: var(--accent);
    color: white;
}

#gallery .cs-grouped-select {
    padding-right: 30px;
}

#gallery .cs-grouped-select optgroup {
    font-weight: 700;
    font-size: 0.65rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 6px 0 4px 4px;
    border-bottom: 1px solid var(--line);
}

#gallery .cs-grouped-select optgroup:last-child {
    border-bottom: none;
}

#gallery .cs-grouped-select optgroup option {
    font-weight: normal;
    font-size: 0.82rem;
    color: var(--text);
    text-transform: none;
    letter-spacing: normal;
    padding: 4px 8px;
    margin-left: 4px;
}

#gallery .cs-lattice-field {
    gap: 7px;
    padding: 10px;
    border-color: color-mix(in srgb, var(--accent) 18%, var(--line));
    background: color-mix(in srgb, var(--accent) 3%, var(--surface));
}

#gallery .cs-select-shell {
    position: relative;
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) 20px;
    align-items: center;
    min-height: 40px;
    overflow: hidden;
    border: var(--cs-strong-border);
    border-radius: var(--cs-field-radius);
    background: var(--surface);
    transition:
        border-color var(--cs-transition),
        box-shadow var(--cs-transition),
        transform var(--cs-transition);
}

#gallery .cs-select-shell:hover,
#gallery .cs-select-shell:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 11%, transparent);
    transform: translateY(-1px);
}

#gallery .cs-select-icon,
#gallery .cs-select-chevron {
    display: grid;
    place-items: center;
    color: var(--accent);
    pointer-events: none;
}

#gallery .cs-select-icon svg {
    width: 15px;
    height: 15px;
}

#gallery .cs-select-chevron svg {
    width: 12px;
    height: 12px;
}

#gallery .cs-select-shell select {
    height: 38px;
    appearance: none;
    -webkit-appearance: none;
    padding: 0 4px;
    color: var(--ink);
    background: transparent;
    font-size: 0.72rem;
    font-weight: 750;
}

#gallery .cs-field-hint {
    color: var(--muted);
    font-size: 0.57rem;
    line-height: 1.45;
}

#gallery .cs-rerandom-btn {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--btn-bg);
    border: none;
    border-radius: var(--cs-field-radius);
    color: white;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
}

#gallery .cs-rerandom-btn:hover {
    background: color-mix(in srgb, var(--accent) 90%, white);
    transform: translateY(-1px);
}

#gallery .cs-rerandom-btn:active {
    transform: translateY(0);
}

#gallery .cs-range-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 7px;
}

#gallery .cs-range-row input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

#gallery .cs-range-row output {
    min-width: 48px;
    color: var(--ink);
    font-size: 0.65rem;
    font-variant-numeric: tabular-nums;
    text-align: right;
}

#gallery .cs-toggle-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 9px;
}

#gallery .cs-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 27px;
    padding: 0 7px;
    border: var(--cs-border);
    border-radius: var(--cs-pill-radius);
    color: var(--muted);
    background: var(--surface-2);
    cursor: pointer;
    font-size: 0.58rem;
    font-weight: 700;
    transition: all var(--cs-transition);

    user-select: none;
    -webkit-user-select: none;
}

#gallery .cs-toggle:hover {
    border-color: var(--accent);
    color: var(--ink);
}

#gallery .cs-toggle input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    margin: 0;
}

#gallery .cs-toggle::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--line);
    transition: background var(--cs-transition);
    flex-shrink: 0;
}

#gallery .cs-toggle:has(input:checked) {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 10%, var(--surface));
    color: var(--accent);
}

#gallery .cs-toggle:has(input:checked)::before {
    background: var(--accent);
}

#gallery .cs-button-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
    margin-top: 9px;
}

#gallery .cs-button {
    min-height: 31px;
    padding: 0 8px;
    border: 1px solid var(--btn-bg);
    border-radius: 8px;
    color: var(--btn-text);
    background: var(--btn-bg);
    cursor: pointer;
    font-size: 0.61rem;
    font-weight: 750;
    transition:
        transform var(--cs-transition),
        border-color var(--cs-transition),
        color var(--cs-transition),
        background var(--cs-transition);
}

#gallery .cs-button:hover {
    transform: translateY(-1px);
    border-color: var(--accent);
    color: #fff;
    background: var(--accent);
}

#gallery .cs-status {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-top: 9px;
    padding-top: 8px;
    border-top: var(--cs-border);
    color: var(--muted);
    font-size: 0.58rem;
}

#gallery .cs-status b {
    min-width: 0;
    overflow: hidden;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#gallery .cs-mapping-panel::-webkit-scrollbar {
    width: 8px;
}

#gallery .cs-mapping-panel::-webkit-scrollbar-track {
    background: transparent;
}

#gallery .cs-mapping-panel::-webkit-scrollbar-thumb {
    border: 2px solid transparent;
    border-radius: var(--cs-pill-radius);
    background: color-mix(in srgb, var(--muted) 35%, transparent);
    background-clip: padding-box;
}

#gallery .cs-visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

#gallery .cs-is-hidden {
    display: none !important;
}

@media (max-width: 980px) {
    #gallery {
        --gallery-shell-gutter: 24px;
    }

    #gallery .cs-four-column {
        grid-template-columns: 1fr;
        grid-template-areas:
            "mapping"
            "visual";
    }

    #gallery .cs-mapping-panel {
        position: static;
        max-height: none;
        overflow: visible;
    }
}

@media (max-width: 760px) {
    #gallery {
        --gallery-shell-gutter: 20px;
        --cs-panel-padding: 12px;
        --cs-stack-gap: 12px;
        --cs-source-min-height: 180px;
        --cs-source-max-height: 360px;
    }

    #gallery .gallery-feature-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
        padding-bottom: 9px;
    }

    #gallery .gallery-feature-heading>p {
        text-align: left;
    }
}
/* Brightness slice controls */
#gallery .cs-slice-toggle {
    position: absolute;
    top: 9px;
    right: 9px;
    z-index: 5;
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.76);
    background: rgba(8, 9, 11, 0.68);
    box-shadow: 0 8px 18px -12px rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
    transition:
        transform var(--cs-transition),
        color var(--cs-transition),
        border-color var(--cs-transition),
        background var(--cs-transition);
}

#gallery .cs-slice-toggle svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

#gallery .cs-slice-toggle:hover,
#gallery .cs-slice-toggle:focus-visible {
    transform: translateY(-1px);
    color: #fff;
    border-color: color-mix(in srgb, var(--accent) 68%, rgba(255, 255, 255, 0.2));
    background: color-mix(in srgb, var(--accent) 74%, rgba(8, 9, 11, 0.78));
}

#gallery .cs-slice-toggle.is-active {
    color: var(--accent-text, #fff);
    border-color: color-mix(in srgb, var(--accent) 84%, white);
    background: var(--accent);
}

#gallery .cs-viewer-stage.is-light .cs-slice-toggle {
    color: rgba(20, 20, 18, 0.68);
    border-color: rgba(20, 20, 18, 0.14);
    background: rgba(255, 255, 255, 0.84);
}

#gallery .cs-viewer-stage.is-light .cs-slice-toggle:hover,
#gallery .cs-viewer-stage.is-light .cs-slice-toggle:focus-visible,
#gallery .cs-viewer-stage.is-light .cs-slice-toggle.is-active {
    color: var(--accent-text, #fff);
    border-color: var(--accent);
    background: var(--accent);
}

/* Brightness Slice is a viewport-level floating layer anchored to its active Mapping toggle. */
.cs-slice-overlay-layer {
    position: fixed;
    inset: 0;
    z-index: 90;
    overflow: visible;
    pointer-events: none;
}

.cs-slice-popover {
    --cs-slice-popover-width: 356px;
    position: absolute;
    left: 12px;
    top: 72px;
    width: min(var(--cs-slice-popover-width), calc(100vw - 24px));
    max-height: none;
    box-sizing: border-box;
    overflow: auto;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    color: var(--ink);
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    box-shadow: 0px 0px 24px 3px var(--shadow);
    backdrop-filter: blur(16px) saturate(145%);
    -webkit-backdrop-filter: blur(16px) saturate(145%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(7px) scale(0.985);
    transform-origin: bottom right;
    pointer-events: none;
    transition:
        opacity 0.18s ease,
        transform 0.18s ease,
        visibility 0s linear 0.18s;
}

.cs-slice-popover.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    transition-delay: 0s;
}

.cs-slice-popover.is-dragging {
    transition: none;
    user-select: none;
}

.cs-slice-popover-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 11px;
    cursor: grab;
    user-select: none;
}

.cs-slice-popover-head > div {
    min-width: 0;
}

.cs-slice-popover-head h3 {
    margin: 0;
    color: var(--ink);
    font-size: 0.88rem;
    line-height: 1.3;
}

.cs-slice-axis {
    display: grid;
    gap: 1px;
    margin: 4px 0 1px;
    color: var(--muted);
    font-size: 0.61rem;
    line-height: 1.35;
}

.cs-slice-axis small {
    color: var(--accent);
    font-size: 0.58rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.cs-slice-close {
    flex: 0 0 auto;
    width: auto;
    height: auto;
    display: block;
    padding: 0 1px;
    border: 0;
    border-radius: 0;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font-size: 1.42rem;
    font-weight: 300;
    line-height: 0.9;
    transition: color 0.16s ease, transform 0.16s ease;
}

.cs-slice-close:hover,
.cs-slice-close:focus-visible {
    color: var(--accent);
    background: transparent;
    transform: scale(1.06);
}

.cs-slice-preview-shell {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
}

.cs-slice-overview {
    aspect-ratio: var(--cs-slice-preview-ratio, 680 / 420);
}

.cs-slice-preview {
    display: block;
    width: 100%;
    height: 100%;
}

.cs-slice-preview-caption {
    position: absolute;
    right: 8px;
    bottom: 7px;
    padding: 4px 6px;
    border: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
    border-radius: 999px;
    color: var(--muted);
    background: color-mix(in srgb, var(--surface) 84%, transparent);
    font-size: 0.5rem;
    font-weight: 700;
    line-height: 1;
    pointer-events: none;
}

.cs-slice-range-head {
    flex: 0 0 auto;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-top: 12px;
    color: var(--muted);
    font-size: 0.61rem;
    font-weight: 700;
}

.cs-slice-selected-count {
    min-width: 0;
    overflow: hidden;
    color: var(--ink);
    font-size: 0.59rem;
    font-variant-numeric: tabular-nums;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cs-dual-range {
    --slice-min: 25%;
    --slice-max: 75%;
    --cs-slice-thumb-size: 14px;
    --cs-slice-handle-size: 16px;
    position: relative;
    flex: 0 0 36px;
    height: 36px;
    margin-top: 5px;
    touch-action: none;
}

.cs-dual-range-rail {
    position: absolute;
    inset: 0 calc(var(--cs-slice-thumb-size) / 2);
    z-index: 1;
    pointer-events: none;
}

.cs-dual-range-rail::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 4px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--line) 86%, var(--surface) 14%);
    box-shadow: none;
    transform: translateY(-50%);
    pointer-events: none;
}

.cs-dual-range-window {
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: var(--slice-min);
    right: calc(100% - var(--slice-max));
    z-index: 2;
    min-width: 0;
    border: 0;
    border-radius: 999px;
    background: transparent;
    cursor: grab;
    pointer-events: auto;
    touch-action: none;
}

.cs-dual-range-window::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 8px;
    border: 1px solid color-mix(in srgb, var(--accent) 48%, var(--line) 52%);
    border-radius: 999px;
    background: color-mix(in srgb, var(--accent) 24%, var(--surface) 76%);
    box-shadow: 0 2px 7px -6px var(--shadow);
    transform: translateY(-50%);
    transition:
        background-color 160ms ease,
        border-color 160ms ease,
        box-shadow 160ms ease,
        transform 160ms ease;
    pointer-events: none;
}

.cs-dual-range-window:hover::before {
    border-color: color-mix(in srgb, var(--accent) 58%, var(--line) 42%);
    background: color-mix(in srgb, var(--accent) 28%, var(--surface) 72%);
}

.cs-dual-range-window.is-dragging {
    cursor: grabbing;
}

.cs-dual-range-window.is-dragging::before {
    border-color: color-mix(in srgb, var(--accent) 70%, var(--line) 30%);
    background: color-mix(in srgb, var(--accent) 34%, var(--surface) 66%);
    box-shadow: 0 4px 11px -8px var(--shadow);
    transform: translateY(-50%) scaleY(1.08);
}

.cs-dual-range-handle {
    position: absolute;
    top: 50%;
    z-index: 3;
    width: var(--cs-slice-handle-size);
    height: var(--cs-slice-handle-size);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.cs-dual-range-handle-min {
    left: var(--slice-min);
    transform: translate(0, -50%);
}

.cs-dual-range-handle-max {
    left: var(--slice-max);
    transform: translate(-100%, -50%);
}

.cs-dual-range-handle::before,
.cs-dual-range-handle::after {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    transform-origin: 50% 50%;
    transition:
        opacity 160ms ease,
        transform 190ms cubic-bezier(0.2, 0.78, 0.25, 1),
        box-shadow 190ms ease,
        background-color 190ms ease,
        border-color 190ms ease;
}

.cs-dual-range-handle::before {
    width: 10px;
    height: 10px;
    opacity: 1;
    background: var(--accent);
    transform: scale(1);
    -webkit-mask-position: center;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-size: 10px 10px;
    mask-position: center;
    mask-repeat: no-repeat;
    mask-size: 10px 10px;
}

.cs-dual-range-handle-min::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M14.5 6.5 9 12l5.5 5.5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M14.5 6.5 9 12l5.5 5.5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.cs-dual-range-handle-max::before {
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m9.5 6.5 5.5 5.5-5.5 5.5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m9.5 6.5 5.5 5.5-5.5 5.5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.cs-dual-range-handle::after {
    width: 14px;
    height: 14px;
    box-sizing: border-box;
    border: 2px solid var(--accent);
    border-radius: 50%;
    opacity: 0;
    background: var(--surface);
    box-shadow: 0 2px 8px -3px var(--shadow);
    transform: scale(0.64);
}

.cs-dual-range:has(.cs-dual-range-min:hover) .cs-dual-range-handle-min::before,
.cs-dual-range:has(.cs-dual-range-min:active) .cs-dual-range-handle-min::before,
.cs-dual-range:has(.cs-dual-range-min:focus-visible) .cs-dual-range-handle-min::before,
.cs-dual-range:has(.cs-dual-range-max:hover) .cs-dual-range-handle-max::before,
.cs-dual-range:has(.cs-dual-range-max:active) .cs-dual-range-handle-max::before,
.cs-dual-range:has(.cs-dual-range-max:focus-visible) .cs-dual-range-handle-max::before {
    opacity: 0;
    transform: scale(0.58);
}

.cs-dual-range:has(.cs-dual-range-min:hover) .cs-dual-range-handle-min::after,
.cs-dual-range:has(.cs-dual-range-min:active) .cs-dual-range-handle-min::after,
.cs-dual-range:has(.cs-dual-range-min:focus-visible) .cs-dual-range-handle-min::after,
.cs-dual-range:has(.cs-dual-range-max:hover) .cs-dual-range-handle-max::after,
.cs-dual-range:has(.cs-dual-range-max:active) .cs-dual-range-handle-max::after,
.cs-dual-range:has(.cs-dual-range-max:focus-visible) .cs-dual-range-handle-max::after {
    opacity: 1;
    transform: scale(1);
}

.cs-dual-range:has(.cs-dual-range-min:focus-visible) .cs-dual-range-handle-min::after,
.cs-dual-range:has(.cs-dual-range-max:focus-visible) .cs-dual-range-handle-max::after {
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent);
}

.cs-dual-range-input {
    position: absolute;
    inset: 0;
    z-index: 4;
    width: 100%;
    height: 36px;
    padding: 0;
    margin: 0;
    appearance: none;
    -webkit-appearance: none;
    border: 0;
    outline: 0;
    background: transparent;
    pointer-events: none;
}

.cs-dual-range-input::-webkit-slider-runnable-track {
    height: 1px;
    border: 0;
    background: transparent;
}

.cs-dual-range-input::-moz-range-track {
    height: 1px;
    border: 0;
    background: transparent;
}

.cs-dual-range-input::-webkit-slider-thumb {
    box-sizing: border-box;
    width: var(--cs-slice-thumb-size);
    height: var(--cs-slice-thumb-size);
    margin-top: calc((1px - var(--cs-slice-thumb-size)) / 2);
    appearance: none;
    -webkit-appearance: none;
    border: 0;
    border-radius: 50%;
    background: transparent;
    box-shadow: none;
    cursor: ew-resize;
    pointer-events: auto;
}

.cs-dual-range-input::-moz-range-thumb {
    box-sizing: border-box;
    width: var(--cs-slice-thumb-size);
    height: var(--cs-slice-thumb-size);
    border: 0;
    border-radius: 50%;
    background: transparent;
    box-shadow: none;
    cursor: ew-resize;
    pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
    .cs-dual-range-handle::before,
    .cs-dual-range-handle::after {
        transition: none;
    }
}

.cs-slice-values {
    flex: 0 0 auto;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    margin-top: -2px;
    color: var(--muted);
    font-size: 0.55rem;
}

.cs-slice-values output {
    min-width: 44px;
    padding: 4px 6px;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: var(--ink);
    background: var(--surface-2);
    font-size: 0.58rem;
    font-weight: 750;
    font-variant-numeric: tabular-nums;
    text-align: center;
}

.cs-slice-scale {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 0;
}

.cs-slice-scale i {
    font-style: normal;
}

.cs-slice-actions {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 10px;
    padding-top: 9px;
    border-top: 1px solid var(--line);
}

.cs-slice-actions span {
    color: var(--muted);
    font-size: 0.54rem;
    line-height: 1.4;
}

.cs-slice-reset {
    flex: 0 0 auto;
    min-height: 27px;
    padding: 0 9px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: var(--surface-2);
    cursor: pointer;
    font-size: 0.56rem;
    font-weight: 750;
    transition:
        color 0.16s ease,
        border-color 0.16s ease,
        background 0.16s ease;
}

.cs-slice-reset:hover,
.cs-slice-reset:focus-visible {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
}


/* Gallery feature cards share one border/background geometry for heading and content. */
#gallery .gallery-feature-card {
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: 0 22px 48px -40px var(--shadow);
}

#gallery .gallery-feature-card + .gallery-feature-card {
    margin-top: 30px;
}

#gallery .gallery-feature-card-color {
    position: relative;
    overflow: visible;
}

#gallery .gallery-feature-card-color.animate-on-scroll.visible {
    transform: none;
}

#galleryColorSpace,
#galleryColorSpace .cs-atlas,
#galleryColorSpace .cs-four-column {
    overflow: visible;
}

#galleryColorSpace .cs-four-column {
    position: relative;
}

#gallery .gallery-feature-heading {
    box-sizing: border-box;
    width: 100%;
    margin: 0;
    padding: 18px 20px 12px;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
}

#gallery .gallery-feature-heading-color {
    margin-top: 0;
}

#gallery .gallery-feature-number {
    min-width: 28px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: var(--accent);
    background: var(--accent-soft);
}

#gallery .gallery-panel {
    box-sizing: border-box;
    width: 100%;
    padding: 8px 20px 20px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

#galleryArena .arena-container {
    padding: 12px 0 0;
}


@media (max-width: 760px) {
    #gallery .gallery-feature-heading {
        align-items: flex-start;
    }

    #gallery .gallery-panel {
        padding: 8px 14px 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cs-slice-popover {
        transition: none;
        transform: none;
    }
}


/* Color Space Input Image uses the same shared Loading visual. */
#gallery .cs-drop-zone { position: relative; }
#gallery .cs-input-loading {
    position: absolute;
    inset: 0;
    z-index: 4;
    border-radius: inherit;
    gap: 7px;
}
#gallery .cs-input-loading.is-hidden { display: none !important; }
#gallery .cs-input-loading:not(.is-hidden) + .cs-drop-overlay {
    opacity: 0;
    pointer-events: none;
}