section#tool {
    min-height: 90vh;
}
.preview {
    width: 100%;
    margin: 20px 0;
}

.preview table {
    width: 100%;
    border-collapse: collapse;
}

.preview th {
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    padding-bottom: 8px;
}

.preview th:nth-child(2),
.preview th:last-child,
.preview td:nth-child(2) {
    text-align: right;
}

.preview tbody tr {
    cursor: grab;
    user-select: none;
}

.preview tbody tr.dragging {
    opacity: 0.4;
}

.preview td {
    padding: 8px 0;
}

.preview td:first-child {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.15s ease;
}

.preview td:first-child:hover {
    background: rgba(127, 127, 127, 0.1);
}

.preview td:first-child img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.preview td:first-child span {
    font-size: 1rem;
}

.preview td:nth-child(2) label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

select {
    background: var(--background-color);
}

.generator-selects {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.generator-selects .select-group {
    margin: 0;
}

.preview input[type="number"].layer-height {
    width: 50px;
    font-size: 1rem;
    padding: 4px;
    text-align: center;
    border: var(--input-border);
    border-radius: 6px;
    background: var(--background-color);
    color: var(--text-color);
}

.preview input[type="number"]::-webkit-inner-spin-button,
.preview input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.preview input[type="number"] {
    -moz-appearance: textfield;
}

.preview .drag-icon,
.preview .action-icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    opacity: 0.7;
    transition: opacity 0.15s ease;
}

.preview .drag-icon {
    cursor: grab;
}

.preview .move-btn,
.preview .delete-btn {
    all: unset;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border-radius: 6px;
    transition: background-color 0.15s ease;
}

.preview .move-btn {
    display: none;
}

.preview .move-btn:hover,
.preview .delete-btn:hover {
    background: rgba(127, 127, 127, 0.15);
}

.preview .move-btn:hover .action-icon,
.preview .delete-btn:hover .action-icon {
    opacity: 1;
}

.preview .delete-btn:hover .action-icon {
    color: var(--error-color);
}

.add-layer-row {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 52px;
    border: 2px dashed var(--light-gray);
    border-radius: var(--row-radius);
    margin-top: 12px;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}

.add-layer-row:hover {
    border-color: var(--accent-color);
    background-color: rgba(0, 0, 0, 0.02);
}

.add-layer-row .add-icon {
    width: 28px;
    height: 28px;
    fill: var(--text-color-secondary);
    transition: fill 0.2s;
}

.add-layer-row:hover .add-icon {
    fill: var(--accent-color);
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background: var(--card-background);
    color: var(--text-color);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    all: unset;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    color: var(--text-color);
    opacity: 0.7;
    transition: background-color 0.15s ease, opacity 0.15s ease;
}

.modal-close:hover,
.modal-close:focus-visible {
    background: rgba(127, 127, 127, 0.15);
    opacity: 1;
}

.block-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.block-search-icon {
    position: absolute;
    left: 12px;
    width: 18px;
    height: 18px;
    opacity: 0.6;
    pointer-events: none;
}

.block-search {
    width: 100%;
    padding: 10px 12px 10px 38px;
    border-radius: 8px;
    border: var(--input-border);
    outline: none;
    background: var(--background-color);
    color: var(--text-color);
    transition: border-color 0.15s ease;
}

.block-search:focus {
    border-color: var(--accent-color);
}

.block-list {
    display: grid;
    grid-template-columns: repeat(9, minmax(0, 1fr));
    gap: 8px;
    overflow-y: auto;
    max-height: 60vh;
    padding-right: 4px;
}

.block-empty {
    margin: 8px 0 0;
    text-align: center;
    color: var(--text-color-secondary);
    font-size: 0.9rem;
}

.block-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    justify-content: center;
}

.block-item:hover {
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.05);
}

.block-item img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.block-tooltip {
    position: fixed;
    pointer-events: none;
    z-index: 2100;
    background: var(--card-background);
    color: var(--text-color);
    border: 1px solid rgba(127, 127, 127, 0.45);
    border-radius: 8px;
    padding: 6px 8px;
    box-shadow: var(--shadow);
    max-width: min(260px, calc(100vw - 16px));
    white-space: nowrap;
    transform: translate3d(0, 0, 0);
}

.block-tooltip-name {
    font-size: 0.85rem;
    line-height: 1.2;
}

.block-tooltip-id {
    font-size: 0.75rem;
    line-height: 1.2;
    color: var(--text-color-secondary);
    opacity: 0.85;
}

.config-card h2 {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.config-card h2::before {
    content: "▼";
    font-size: 0.75em;
    color: var(--accent-color);
    transition: transform 0.2s ease;
    display: inline-block;
}

.config-card.minimized h2::before {
    transform: rotate(-90deg);
}

.preset-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    margin-top: 16px;
    padding-bottom: 8px;
    transition: all 0.2s ease;
}

.preset-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    cursor: pointer;
    text-align: left;
    box-shadow: var(--shadow);
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 2px solid transparent;
    background: var(--background-color);
    transition: border-color 0.2s, background-color 0.2s, transform 0.1s;
    gap: 16px;
}

.preset-item:hover {
    border-color: var(--accent-color);
    background: var(--card-background);
    transform: translateY(-2px);
}

.preset-item.active {
    border-color: var(--accent-color);
    background: var(--card-background);
}

.preset-item img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    image-rendering: pixelated;
    flex-shrink: 0;
}

.preset-item span {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-color);
}

.config-card.minimized .preset-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
}

.config-card.minimized .preset-item {
    width: 52px;
    height: 52px;
    padding: 0;
    justify-content: center;
    align-items: center;
    gap: 0;
}

.config-card.minimized .preset-item span {
    display: none;
}

.config-card.minimized .preset-item img {
    width: 32px;
    height: 32px;
}

@media (max-width: 1100px) {
    .block-list {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (max-width: 700px) {
    .generator-selects {
        grid-template-columns: 1fr;
    }

    .block-list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .preview .drag-icon {
        display: none;
    }

    .preview .move-btn {
        display: inline-flex;
    }
}

@media (max-width: 420px) {
    .block-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .block-tooltip {
        max-width: calc(100vw - 12px);
        white-space: normal;
        word-break: break-word;
    }
}