.layer-composer {
    display: flex;
    container-type: inline-size;
    flex-direction: column;
    gap: 12px;
    min-width: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--ui-text-1);
}

.layer-composer[hidden] {
    display: none !important;
}

.layer-composer__header,
.layer-composer__header-actions,
.layer-composer__heading,
.layer-composer__auto-badge,
.layer-composer__section-heading,
.layer-composer__source-actions {
    display: flex;
    align-items: center;
}

.layer-composer__header {
    min-height: 38px;
    justify-content: space-between;
    gap: 16px;
}

.layer-composer__header-actions {
    flex: 0 0 auto;
    gap: 10px;
}

.layer-composer__header-actions #clearAll {
    position: static;
    width: 32px;
    height: 32px;
    margin: 0;
    color: var(--ui-text-2);
    border-color: var(--ui-border);
    background: transparent;
}

.layer-composer__header-actions #clearAll:hover {
    color: var(--ui-text-1);
    background: var(--ui-hover);
}

.layer-composer__header-actions #clearAll svg {
    color: inherit;
}

.layer-composer__header-actions #clearAll:focus-visible {
    outline: 2px solid var(--ui-focus-ring);
    outline-offset: 2px;
}

.layer-composer__heading {
    min-width: 0;
    gap: 10px;
}

.layer-composer__heading > span:last-child,
.layer-composer__section-heading > span,
.layer-composer__mode-copy {
    display: flex;
    min-width: 0;
    flex-direction: column;
}

.layer-composer__heading strong,
.layer-composer__section-heading strong,
.layer-composer__mode-copy strong {
    color: var(--ui-text-1);
}

.layer-composer__heading strong {
    font-size: 13px;
    line-height: 1.2;
}

.layer-composer__heading small,
.layer-composer__section-heading small,
.layer-composer__mode-copy small {
    color: var(--ui-text-2);
}

.layer-composer__heading small {
    margin-top: 3px;
    font-size: 11px;
    line-height: 1.25;
}

.layer-composer__heading-icon,
.layer-composer__source-empty-icon,
.layer-composer__mode-icon {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    background: var(--accent-subtle-2);
}

.layer-composer__heading-icon {
    width: 30px;
    height: 30px;
    border-radius: 10px;
}

.layer-composer__auto-badge {
    flex: 0 0 auto;
    gap: 6px;
    min-height: 26px;
    padding: 0 9px;
    border: 1px solid var(--accent-border);
    border-radius: 999px;
    color: var(--accent);
    background: var(--accent-subtle);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .02em;
}

.layer-composer__workspace {
    display: grid;
    grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
    gap: 12px;
    min-width: 0;
}

.layer-composer__source-column,
.layer-composer__modes {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 8px;
    margin: 0;
    padding: 0;
    border: 0;
}

.layer-composer__section-heading {
    min-width: 0;
    min-height: 27px;
    justify-content: space-between;
    gap: 8px;
    padding: 0 2px;
}

.layer-composer__section-heading strong {
    font-size: 11px;
    line-height: 1.2;
}

.layer-composer__section-heading small {
    margin-top: 2px;
    font-size: 9px;
    line-height: 1.2;
}

.layer-composer__source {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    border: 1px solid var(--ui-border-strong);
    border-radius: 14px;
    background: var(--ui-card-media-bg);
    transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.layer-composer__source.is-dragover {
    border-color: var(--accent-border-strong);
    background: var(--accent-subtle);
    box-shadow: inset 0 0 0 1px var(--accent-border-strong);
}

.layer-composer__source-empty {
    display: flex;
    width: 100%;
    height: 100%;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 18px;
    border: 0;
    color: var(--ui-text-1);
    background: transparent;
    cursor: pointer;
    text-align: center;
}

.layer-composer__source-empty::after {
    position: absolute;
    inset: 8px;
    border: 1px dashed var(--ui-border-strong);
    border-radius: 10px;
    content: '';
    pointer-events: none;
}

.layer-composer__source-empty:hover {
    background: var(--ui-hover);
}

.layer-composer__source-empty:focus-visible,
.layer-composer__source-replace:focus-visible,
.layer-composer__source-actions button:focus-visible,
.layer-composer__mode:focus-visible {
    outline: 2px solid var(--ui-focus-ring);
    outline-offset: 2px;
}

.layer-composer__source-empty-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
}

.layer-composer__source-empty > span:not(.layer-composer__source-empty-icon) {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.layer-composer__source-empty strong {
    font-size: 12px;
}

.layer-composer__source-empty small {
    color: var(--ui-text-2);
    font-size: 10px;
}

.layer-composer__source-empty em {
    color: var(--ui-text-3);
    font-size: 9px;
    font-style: normal;
}

.layer-composer__source-preview {
    position: relative;
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.layer-composer__source-replace {
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.layer-composer__source-replace > img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.layer-composer__source-actions {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    gap: 5px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 150ms ease;
}

.layer-composer__source:hover .layer-composer__source-actions,
.layer-composer__source:focus-within .layer-composer__source-actions {
    opacity: 1;
    pointer-events: auto;
}

@media (hover: none) {
    .layer-composer__source-actions {
        opacity: 1;
        pointer-events: auto;
    }
}

.layer-composer__source-actions button {
    display: inline-flex;
    min-width: 30px;
    height: 30px;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0 8px;
    border: 1px solid var(--ui-border);
    border-radius: 9px;
    color: var(--ui-text-1);
    background: var(--ui-panel-elevated-bg);
    font-size: 9px;
    font-weight: 650;
    cursor: pointer;
}

.layer-composer__source-actions button:hover {
    background: var(--ui-hover);
}

.layer-composer__mode-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.layer-composer__mode {
    position: relative;
    display: grid;
    min-width: 0;
    min-height: 76px;
    grid-template-columns: 32px minmax(0, 1fr) 18px;
    align-items: center;
    gap: 9px;
    padding: 10px;
    border: 1px solid var(--ui-border);
    border-radius: 10px;
    color: var(--ui-text-2);
    background: var(--ui-surface-2);
    cursor: pointer;
    text-align: left;
    transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.layer-composer__mode:hover {
    border-color: var(--ui-border-strong);
    background: var(--ui-hover);
    color: var(--ui-text-1);
}

.layer-composer__mode.is-selected {
    border-color: var(--accent-border-strong);
    background: var(--ui-active);
    color: var(--ui-text-1);
}

.layer-composer__mode-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    color: var(--ui-text-3);
    background: var(--ui-surface-3);
}

.layer-composer__mode.is-selected .layer-composer__mode-icon {
    color: var(--accent);
}

.layer-composer__mode-copy {
    gap: 4px;
}

.layer-composer__mode-copy strong {
    font-size: 11px;
    line-height: 1.2;
}

.layer-composer__mode-copy small {
    display: -webkit-box;
    overflow: hidden;
    font-size: 9px;
    line-height: 1.35;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.layer-composer__mode-check {
    display: inline-flex;
    width: 18px;
    height: 18px;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    visibility: hidden;
}

.layer-composer__mode.is-selected .layer-composer__mode-check {
    visibility: visible;
}

.layer-composer__count {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px 12px;
    padding: 8px 4px 0;
    color: var(--ui-text-1);
    font-size: 11px;
}

.layer-composer__count output {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.layer-composer__count input {
    grid-column: 1 / -1;
    width: 100%;
    margin: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.layer-composer__count input:focus-visible {
    outline: 2px solid var(--ui-focus-ring);
    outline-offset: 3px;
}

.layer-composer__count-limits {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    color: var(--ui-text-2);
    font-size: 9px;
}

#composerPanel.is-layer-decomposition-mode {
    max-height: min(78dvh, 650px);
    overflow: visible;
    background: var(--ui-panel-bg);
    color: var(--ui-text-1);
}

#composerPanel.is-layer-decomposition-mode > .layer-composer {
    min-height: 0;
    margin-top: 0;
    margin-inline: -4px;
    padding: 4px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.layer-composer > * {
    flex-shrink: 0;
}

#composerPanel.is-layer-decomposition-mode #promptShell {
    flex: 0 0 auto;
    margin-top: 16px;
    padding: 16px 4px 4px;
    border-top: 1px solid var(--ui-panel-divider);
}

body.is-layer-decomposition-composer #main-area {
    padding-bottom: max(300px, var(--layer-composer-clearance, 300px)) !important;
}

#composerPanel.is-layer-decomposition-mode #previewRow,
#composerPanel.is-layer-decomposition-mode #presetsInlineRow,
#composerPanel.is-layer-decomposition-mode #batchControl {
    display: none !important;
}

#composerPanel.is-layer-decomposition-mode #composerFooter {
    position: relative;
    flex: 0 0 auto;
    z-index: 5;
    gap: 12px;
    margin: 8px 0 0;
    padding: 4px 0 0;
}

#composerPanel.is-layer-decomposition-mode #composerFooter > div:first-child {
    min-width: 0;
    flex-wrap: wrap;
    gap: 6px;
}

#composerPanel.is-layer-decomposition-mode #composerFooter > div:last-child {
    flex: 0 0 auto;
}

html.no-borders .layer-composer,
html.no-borders .layer-composer__source,
html.no-borders .layer-composer__source-actions button,
html.no-borders .layer-composer__mode,
html.no-borders .layer-composer__header-actions #clearAll,
html.no-borders #composerPanel.is-layer-decomposition-mode #promptShell {
    border-color: transparent;
}

html.no-borders .layer-composer__mode.is-selected,
html.no-borders .layer-composer__source.is-dragover {
    border-color: var(--accent-border-strong);
    box-shadow: inset 0 0 0 1px var(--accent-border-strong);
}

@container (max-width: 700px) {
    .layer-composer__workspace {
        grid-template-columns: minmax(0, 1fr);
    }

    .layer-composer__source {
        max-width: 280px;
    }
}

@container (max-width: 420px) {
    .layer-composer__mode-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .layer-composer__mode {
        min-height: 64px;
    }
}

@media (max-width: 820px) {
    .layer-composer__workspace {
        grid-template-columns: minmax(0, 1fr);
    }

    .layer-composer__source {
        max-width: 280px;
    }
}

@media (max-width: 640px) {
    body.is-layer-decomposition-composer #main-area {
        padding-bottom: max(330px, var(--layer-composer-clearance, 330px)) !important;
    }

    #composerPanel.is-layer-decomposition-mode {
        max-height: calc(100dvh - 84px);
    }

    .layer-composer {
        padding: 0;
    }

    .layer-composer__header {
        flex-wrap: wrap;
        gap: 10px;
    }

    .layer-composer__header-actions {
        margin-left: auto;
    }

    .layer-composer__heading small {
        max-width: 240px;
    }


    .layer-composer__mode {
        min-height: 70px;
        grid-template-columns: 28px minmax(0, 1fr) 16px;
        gap: 7px;
        padding: 8px;
    }

    .layer-composer__mode-icon {
        width: 28px;
        height: 28px;
    }

    .layer-composer__source-actions button {
        min-width: 40px;
        height: 40px;
    }

    .layer-composer__source-actions button span {
        display: none;
    }

    #composerPanel.is-layer-decomposition-mode #composerFooter {
        align-items: flex-end;
    }

    #composerPanel.is-layer-decomposition-mode #composerFooter > div:first-child {
        gap: 4px;
    }

    #composerPanel.is-layer-decomposition-mode #genBtn {
        min-height: 40px;
        padding-right: 14px;
        padding-left: 14px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .layer-composer__source,
    .layer-composer__mode,
    .layer-composer__mode-check {
        transition: none;
    }

}