.tool-hero {
  padding: clamp(3rem, 7vw, 5rem) 0 2rem;
}

.tool-hero h1 {
  max-width: 900px;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.2rem 0;
}

.tool-tab {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  color: #334155;
  cursor: pointer;
  font: inherit;
  font-size: 0.86rem;
  font-weight: 900;
  padding: 0.62rem 0.95rem;
}

.tool-tab.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.tool-panel {
  display: none;
}

.tool-panel.active {
  display: block;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.tool-directory {
  display: grid;
  gap: 0.8rem;
}

.tool-group {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.tool-group summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 0.7rem;
  justify-content: space-between;
  list-style: none;
  padding: 1rem;
}

.tool-group summary::-webkit-details-marker {
  display: none;
}

.tool-group summary h3 {
  margin: 0;
}

.tool-group summary span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.tool-link-list {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.45rem;
  padding: 0.75rem;
}

.tool-link {
  align-items: center;
  background: rgba(248, 250, 252, 0.92);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: inherit;
  display: grid;
  gap: 0.3rem;
  padding: 0.8rem;
  text-decoration: none;
}

.tool-link strong {
  letter-spacing: -0.015em;
}

.tool-link span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.45;
}

.tool-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.06);
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-height: 210px;
  padding: 1rem;
  text-decoration: none;
}

.tool-card h3 {
  margin: 0;
  font-size: 1.08rem;
  letter-spacing: -0.025em;
}

.tool-card p,
.tool-card li {
  color: var(--muted);
  font-weight: 650;
  line-height: 1.55;
  margin: 0;
}

.tool-card ul,
.steps {
  margin: 0;
  padding-left: 1.1rem;
}

.tool-kicker {
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.workbook-list {
  display: grid;
  gap: 0.75rem;
}

.workbook-row {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr auto;
  padding: 0.9rem;
}

.workbook-row strong {
  display: block;
  letter-spacing: -0.02em;
}

.workbook-row span {
  color: var(--muted);
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  margin-top: 0.2rem;
}

.mini-button {
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  display: inline-flex;
  font-weight: 900;
  justify-content: center;
  min-height: 40px;
  padding: 0.65rem 0.9rem;
  text-decoration: none;
}

.workbook-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}

button.mini-button {
  cursor: pointer;
  font: inherit;
}

.mini-button.muted {
  background: #fff;
  color: var(--ink);
}

.mini-button.danger {
  background: #be123c;
  border-color: #be123c;
  color: #fff;
}

@media (max-width: 640px) {
  .workbook-row {
    grid-template-columns: 1fr;
  }

  .workbook-actions {
    justify-content: flex-start;
  }
}