.cgg2-section {
    --tool-accent: #6366F1;
    --tool-accent-rgb: 99, 102, 241;
}

/* Layout */
.cgg2-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.cgg2-section .tool-card {
    overflow: clip;
}

/* Grid children need min-width: 0 to prevent overflow */
.cgg2-controls,
.cgg2-output-col {
    min-width: 0;
}

.cgg2-controls {
    padding: 20px 24px;
}

.cgg2-output-col {
    padding: 20px 24px 20px 0;
    position: sticky;
    top: 80px;
    align-self: start;
}

@media (max-width: 820px) {
    .cgg2-layout {
        grid-template-columns: 1fr;
    }

    .cgg2-output-col {
        position: static;
        padding: 0 24px 20px;
    }
}

/* Groups */
.cgg2-group {
    margin-bottom: 1.5rem;
}

.cgg2-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.65rem;
}

.cgg2-group-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--tool-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Count controls */
.cgg2-count-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cgg2-count-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    cursor: pointer;
    font-size: 0.8125rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.cgg2-count-btn:hover {
    background: var(--tool-accent);
    color: #fff;
    border-color: var(--tool-accent);
}

.cgg2-count-val {
    font-size: 0.8125rem;
    font-weight: 700;
    font-family: var(--tool-font-mono);
    color: var(--tool-accent);
    min-width: 20px;
    text-align: center;
}

/* Tracks */
.cgg2-tracks {
    display: flex;
    flex-direction: column;
    min-height: 120px;
    /* Reserve space for default 3 JS-rendered track rows — prevents CLS */
    gap: 0.4rem;
}

.cgg2-track-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cgg2-track-lbl {
    font-size: 0.9375rem;
    color: var(--tool-text-muted);
    min-width: 50px;
}

.cgg2-track-val {
    width: 50px;
    font-size: 0.9375rem;
    font-family: var(--tool-font-mono);
    padding: 0.2rem 0.4rem;
    border: 1px solid var(--tool-border);
    border-radius: 4px;
    background: var(--tool-bg);
    color: var(--tool-text-primary);
    text-align: center;
}

.cgg2-track-unit {
    font-size: 0.9375rem;
    width: 52px;
}

/* Gap */
.cgg2-gap-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cgg2-gap-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cgg2-gap-label {
    font-size: 0.9375rem;
    color: var(--tool-text-secondary);
    min-width: 90px;
}

.cgg2-gap-val {
    font-size: 0.9375rem;
    font-family: var(--tool-font-mono);
    color: var(--tool-accent);
    font-weight: 600;
    min-width: 36px;
    text-align: right;
}

/* Alignment */
.cgg2-align-grid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cgg2-align-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cgg2-align-sel {
    flex: 1;
    max-width: 150px;
}

/* Preview */
.cgg2-preview-label {
    font-size: 0.9375rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--tool-text-muted);
    margin-bottom: 0.5rem;
}

.cgg2-preview {
    min-height: 200px;
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-md);
    background: var(--tool-surface);
    padding: 0.75rem;
    margin-bottom: 1rem;
    display: grid;
    gap: 8px;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: 1fr 1fr 1fr;
}

.cgg2-cell {
    background: rgba(var(--tool-accent-rgb), 0.15);
    border: 1.5px solid rgba(var(--tool-accent-rgb), 0.35);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    font-family: var(--tool-font-mono);
    color: var(--tool-text-muted);
    min-height: 40px;
}

/* Output */
.cgg2-output-ta {
    font-family: var(--tool-font-mono);
    font-size: 1rem;
    min-height: 160px;
}

/* ── Cell selection & span ── */
.cgg2-cell {
    cursor: pointer;
    transition: outline 0.1s, background 0.1s;
}

.cgg2-cell--selected {
    outline: 2px solid var(--tool-accent);
    outline-offset: -2px;
    background: rgba(var(--tool-accent-rgb), 0.18);
    color: var(--tool-accent);
}

.cgg2-hint {
    font-size: 0.8125rem;
    opacity: 0.55;
    font-weight: 400;
}

.cgg2-span-panel {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    padding: 0.625rem 0.875rem;
    background: rgba(var(--tool-accent-rgb), 0.07);
    border: 1px solid rgba(var(--tool-accent-rgb), 0.2);
    border-radius: 6px;
    margin-top: 0.625rem;
}

.cgg2-span-lbl {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--tool-text);
    opacity: 0.75;
    white-space: nowrap;
}

.cgg2-span-row {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.cgg2-span-axis {
    font-size: 0.9375rem;
    color: var(--tool-text-muted);
    min-width: 4.5rem;
}

.cgg2-span-btn {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 4px;
    border: 1px solid rgba(var(--tool-accent-rgb), 0.35);
    background: transparent;
    color: inherit;
    cursor: pointer;
    font-size: 0.9375rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}

.cgg2-span-btn:hover {
    background: rgba(var(--tool-accent-rgb), 0.15);
}

.cgg2-span-num {
    min-width: 1.25rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--tool-accent);
}

.cgg2-span-clear-btn {
    font-size: 0.9375rem;
    padding: 0.25rem 0.6rem;
}

/* ── Presets strip ─────────────────────────────────────── */
.cgg2-presets-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    padding: 14px 20px;
    border-bottom: 1px solid var(--tool-border);
}

.cgg2-presets-label {
    font-size: 0.9375rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--tool-text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.cgg2-preset-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cgg2-preset-btn {
    padding: 5px 14px;
    border-radius: 100px;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border: 1.5px solid var(--tool-border);
    background: transparent;
    color: var(--tool-text-primary);
    transition: all 0.18s ease;
}

.cgg2-preset-btn:hover {
    border-color: var(--tool-accent);
    color: var(--tool-accent);
}

.cgg2-preset-btn.active {
    border-color: var(--tool-accent);
    background: rgba(var(--tool-accent-rgb), 0.1);
    color: var(--tool-accent);
}

/* ── Area name input in span panel ─────────────────────── */
.cgg2-area-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
}

.cgg2-area-label {
    font-size: 0.9375rem;
    color: var(--tool-text-muted);
    white-space: nowrap;
}

.cgg2-area-input {
    flex: 1;
    max-width: 140px;
    padding: 0.2rem 0.5rem;
    font-size: 0.9375rem;
    font-family: var(--tool-font-mono);
    border: 1px solid var(--tool-border);
    border-radius: 4px;
    background: var(--tool-surface);
    color: var(--tool-text-primary);
    outline: none;
}

.cgg2-area-input:focus {
    border-color: var(--tool-accent);
}

/* ── Cell area name label ───────────────────────────────── */
.cgg2-cell-area {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--tool-accent);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* ── Output code tabs ────────────────────────────────────── */
.cgg2-code-tabs {
    display: flex;
    gap: 4px;
}

.cgg2-code-tab {
    padding: 6px 16px;
    border-radius: 6px 6px 0 0;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    background: transparent;
    color: var(--tool-text-muted);
    transition: all 0.18s;
}

.cgg2-code-tab:hover {
    color: var(--tool-text-primary);
}

.cgg2-code-tab.active {
    background: var(--tool-surface);
    border-color: var(--tool-border);
    border-bottom-color: var(--tool-surface);
    color: var(--tool-accent);
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
    .cgg2-presets-row {
        padding: 10px 14px;
        gap: 10px;
    }

    .cgg2-preset-btn {
        padding: 4px 10px;
        font-size: 0.875rem;
    }

    .cgg2-group-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .cgg2-track-row {
        flex-wrap: wrap;
    }

    .cgg2-align-row {
        flex-wrap: wrap;
    }

    .cgg2-align-sel {
        max-width: 100%;
    }
}

@media (max-width: 430px) {
    .cgg2-section .tool-io-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .cgg2-section .tool-io-actions {
        flex-wrap: wrap;
        gap: 6px;
    }
}