.nx-tools { min-height: 65vh; }
.nx-tools-heading { max-width: 850px; margin-bottom: 2.5rem; }
.nx-tools-heading p, .nx-tool-card p, .nx-tool-notes { color: var(--nx-muted); line-height: 1.7; }
.nx-tools-heading-compact { margin-bottom: 1.75rem; }
.nx-tools-back { display: inline-block; margin-bottom: 1.5rem; color: var(--nx-primary); font-weight: 600; }
.nx-tool-catalog { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 1.5rem; }
.nx-tool-card { display: flex; gap: 1.5rem; max-width: 670px; padding: clamp(1.25rem, 3vw, 2rem); border: 1px solid var(--nx-border); border-radius: 6px; background: var(--nx-surface); }
.nx-tool-card h2 { font-size: 1.35rem; }
.nx-tool-symbol { flex-shrink: 0; color: var(--nx-primary); font: 700 1.8rem ui-monospace, monospace; }
.nx-tool-editors { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.nx-tool-editor { min-width: 0; }
.nx-tool-editor label { display: block; color: var(--nx-text); font-size: 1rem; font-weight: 700; margin-bottom: .35rem; }
.nx-tool-editor p, .nx-tool-editor > span { display: block; color: var(--nx-muted); font-size: .85rem; margin: 0 0 .75rem; }
.nx-tool-editor textarea { display: block; width: 100%; padding: 1rem; border: 1px solid var(--nx-control-border); border-radius: 6px; color: var(--nx-text); background: var(--nx-surface); font: .9rem/1.65 ui-monospace, SFMono-Regular, Consolas, monospace; resize: vertical; min-height: 230px; tab-size: 4; }
.nx-tool-editor textarea::placeholder { color: var(--nx-muted); opacity: 1; }
.nx-tool-editor textarea[readonly] { background: var(--nx-surface-raised); }
.nx-tool-editor textarea[aria-invalid="true"] { border-color: var(--nx-error); }
.nx-tool-editor > span { margin-top: .65rem; font-variant-numeric: tabular-nums; }
.nx-tool-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: .5rem; }
.nx-tool-actions button > * { pointer-events: none; }
.nx-tools .btn { margin: 0; font-size: .9rem; border-radius: 6px; min-height: 46px; text-transform: none; letter-spacing: 0; }
.nx-tools .nx-tool-secondary { border: 1px solid var(--nx-control-border); background: var(--nx-surface); color: var(--nx-text); box-shadow: none; }
.nx-tools button:disabled { opacity: .65; cursor: not-allowed; transform: none; }
.nx-tool-status { min-height: 1.75rem; margin: 1rem 0; color: var(--nx-muted); }
.nx-tool-status[data-state="error"] { color: var(--nx-error); }
.nx-tool-status[data-state="success"] { color: var(--nx-success); }
.nx-tool-notes { padding-top: 1.25rem; border-top: 1px solid var(--nx-border); font-size: .85rem; }
.nx-tool-notes p { max-width: 95ch; margin-bottom: .5rem; }
@media (max-width: 767.98px) {
    .nx-tool-editors { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
    .nx-tool-editor textarea { min-height: 200px; }
    .nx-tool-card { gap: 1rem; }
    .nx-tool-actions .btn { flex-grow: 1; }
}