.extra-tool-page {
  width: min(calc(100% - 48px), 1180px);
  margin: var(--site-header-height) auto 0;
  padding: 28px 0 48px;
}

.extra-tool-page a,
.extra-tool-page a:hover,
.extra-tool-page a:focus {
  text-decoration: none !important;
}

.extra-tool-hero,
.extra-tool-card,
.extra-tool-info,
.extra-tool-related {
  border: 1px solid var(--site-line);
  border-radius: var(--site-radius);
  background: var(--site-surface);
  box-shadow: var(--site-shadow-sm);
}

.extra-tool-hero {
  margin-bottom: 18px;
  padding: 28px 30px;
}

.extra-tool-eyebrow {
  margin: 0 0 5px;
  color: var(--site-primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.extra-tool-hero h1 {
  margin: 0;
  color: var(--site-ink);
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.25;
}

.extra-tool-hero p:last-child {
  max-width: 760px;
  margin: 10px 0 0;
  color: var(--site-muted);
}

.extra-tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  align-items: start;
  gap: 18px;
}

.extra-tool-card {
  min-width: 0;
  padding: 26px;
}

.extra-tool-info,
.extra-tool-related {
  padding: 22px;
}

.extra-tool-info + .extra-tool-related {
  margin-top: 18px;
}

.extra-tool-card h2,
.extra-tool-info h2,
.extra-tool-related h2 {
  margin: 0 0 14px;
  color: var(--site-ink);
  font-size: 18px;
}

.extra-tool-card textarea {
  display: block;
  width: 100%;
  min-height: 132px;
  resize: vertical;
  padding: 14px;
  border: 1px solid var(--site-line-strong);
  border-radius: var(--site-radius-sm);
  background: #fff;
  color: var(--site-text);
  font: inherit;
  line-height: 1.7;
}

.extra-tool-card textarea:focus {
  border-color: var(--site-primary);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(23, 105, 232, 0.1);
}

.extra-tool-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 14px 0 18px;
  gap: 10px;
}

body.site-shell .extra-tool-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 17px;
  border: 1px solid var(--site-line-strong);
  border-radius: var(--site-radius-sm);
  background: #fff;
  color: var(--site-text);
  font-weight: 600;
}

body.site-shell .extra-tool-button--primary {
  border-color: var(--site-primary);
  background: var(--site-primary);
  color: #fff;
  box-shadow: 0 4px 10px rgba(23, 105, 232, 0.16);
}

body.site-shell .extra-tool-button:hover {
  border-color: var(--site-primary);
  color: var(--site-primary);
}

body.site-shell .extra-tool-button--primary:hover {
  border-color: var(--site-primary-strong);
  background: var(--site-primary-strong);
  color: #fff;
}

.extra-tool-status {
  min-height: 22px;
  margin: 0 0 10px;
  color: var(--site-muted);
  font-size: 13px;
}

.extra-tool-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--site-line);
  border-radius: var(--site-radius-sm);
}

.extra-tool-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.extra-tool-table th,
.extra-tool-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--site-line);
  color: var(--site-text);
  font-size: 13px;
  text-align: left;
  vertical-align: middle;
}

.extra-tool-table th {
  background: var(--site-primary-soft);
  color: var(--site-ink);
  font-weight: 650;
}

.extra-tool-table tbody tr:last-child td {
  border-bottom: 0;
}

.extra-tool-character {
  min-width: 48px;
  color: var(--site-ink);
  font-size: 22px;
  font-weight: 650;
}

.extra-tool-code {
  font-family: Consolas, "SFMono-Regular", "Courier New", monospace;
  white-space: nowrap;
}

.extra-tool-list,
.extra-tool-links {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  gap: 9px;
}

.extra-tool-list li {
  position: relative;
  padding-left: 15px;
  color: var(--site-muted);
  font-size: 13px;
}

.extra-tool-list li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--site-primary);
  content: "";
}

.extra-tool-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--site-line);
  border-radius: var(--site-radius-sm);
  background: #fff;
  color: var(--site-text);
  font-size: 13px;
}

.extra-tool-links a::after {
  color: var(--site-muted);
  content: "→";
}

.extra-tool-links a:hover {
  border-color: #b9c8dd;
  background: var(--site-primary-soft);
  color: var(--site-primary);
}

.invisible-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 16px;
  gap: 10px;
}

.invisible-summary div {
  padding: 12px;
  border: 1px solid var(--site-line);
  border-radius: var(--site-radius-sm);
  background: var(--site-hover);
}

.invisible-summary strong,
.invisible-summary span {
  display: block;
}

.invisible-summary strong {
  color: var(--site-ink);
  font-size: 20px;
}

.invisible-summary span {
  color: var(--site-muted);
  font-size: 12px;
}

.invisible-results {
  display: grid;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  gap: 8px;
}

.invisible-results li {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) auto;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--site-line);
  border-radius: var(--site-radius-sm);
  gap: 12px;
}

.invisible-results code {
  color: var(--site-primary);
  font-weight: 650;
}

.invisible-results span {
  color: var(--site-muted);
  font-size: 13px;
}

.invisible-results em {
  color: var(--site-text);
  font-size: 12px;
  font-style: normal;
}

.fullwidth-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.fullwidth-panels label {
  display: grid;
  color: var(--site-text);
  font-size: 13px;
  font-weight: 650;
  gap: 8px;
}

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

  .extra-tool-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .extra-tool-info + .extra-tool-related {
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .extra-tool-page {
    width: min(calc(100% - 20px), 1180px);
    padding-top: 16px;
  }

  .extra-tool-hero,
  .extra-tool-card,
  .extra-tool-info,
  .extra-tool-related {
    padding: 18px;
  }

  .extra-tool-sidebar,
  .fullwidth-panels {
    grid-template-columns: 1fr;
  }

  .invisible-summary {
    grid-template-columns: 1fr;
  }

  .invisible-results li {
    grid-template-columns: 76px minmax(0, 1fr);
  }

  .invisible-results em {
    grid-column: 1 / -1;
  }
}