.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.5fr);
  gap: 1.5rem;
  padding: 2rem 0 3.5rem;
  align-items: start;
}

.tool-panel {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem 1.5rem;
}

.tool-form {
  display: grid;
  gap: 0.9rem;
}

.tool-field {
  display: grid;
  gap: 0.35rem;
}

.tool-field > span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.tool-field input,
.tool-field select,
.tool-field textarea,
.tool-copy-row input,
.tool-copy-row textarea {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: calc(var(--radius) - 2px);
  background: var(--paper);
  color: var(--ink);
  padding: 0.65rem 0.75rem;
  font: inherit;
}

.tool-field textarea,
.tool-copy-row textarea {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92rem;
  line-height: 1.45;
  resize: vertical;
}

.tool-copy-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: start;
}

.tool-checks,
.chmod-grid {
  display: grid;
  gap: 0.45rem;
}

.chmod-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.chmod-grid fieldset {
  margin: 0;
  border: 1px solid var(--rule);
  border-radius: calc(var(--radius) - 2px);
  padding: 0.7rem 0.8rem;
}

.chmod-grid legend {
  padding: 0 0.25rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.tool-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tool-results-panel {
  margin-top: 1.25rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--rule);
}

.tool-results-panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.tool-message {
  margin: 0 0 0.75rem;
  padding: 0.65rem 0.8rem;
  border-radius: calc(var(--radius) - 2px);
  background: color-mix(in srgb, var(--brass) 18%, var(--paper));
}

.tool-message.is-error {
  background: color-mix(in srgb, #b42318 14%, var(--paper));
  color: #8a1c14;
}

html.dark .tool-message.is-error,
[data-theme="dark"] .tool-message.is-error {
  color: #ffb4a8;
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.tool-table th,
.tool-table td {
  text-align: left;
  padding: 0.45rem 0.35rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

.tool-table th {
  width: 38%;
  color: var(--ink-muted);
  font-weight: 600;
}

.tool-table code,
.tool-list-plain code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

.tool-list-plain {
  margin: 0.5rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.25rem;
}

.tool-summary {
  margin: 0 0 0.6rem;
}

.tool-privacy-note {
  margin-top: 0.9rem;
  font-size: 0.88rem;
}

.tool-explain {
  margin-top: 0.9rem;
  font-size: 0.92rem;
  color: var(--ink-muted);
}

.tool-explain ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
}

.tool-qr-wrap {
  display: flex;
  justify-content: flex-start;
  margin: 0.5rem 0;
}

.tool-qr-wrap img {
  border: 1px solid var(--rule);
  border-radius: calc(var(--radius) - 2px);
  background: #fff;
  max-width: 240px;
  height: auto;
}

.tool-item.is-live header a {
  color: inherit;
  text-decoration: none;
}

.tool-item.is-live header a:hover {
  color: var(--brass);
  text-decoration: underline;
}

.badge-live {
  background: color-mix(in srgb, #1a7f37 18%, var(--paper));
  color: #146c2e;
}

html.dark .badge-live,
[data-theme="dark"] .badge-live {
  color: #7ddea0;
}

@media (max-width: 900px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }

  .chmod-grid {
    grid-template-columns: 1fr;
  }

  .tool-copy-row {
    grid-template-columns: 1fr;
  }
}