.tool-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  aspect-ratio: 1;
  padding: 16px 10px;
  text-align: center;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.tool-card:not(.tool-card-empty):hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.12);
}

.tool-card-empty {
  color: var(--color-text-muted);
  border-style: dashed;
  cursor: default;
}

.tool-icon {
  font-size: 28px;
  line-height: 1;
}

.tool-icon-empty {
  font-size: 20px;
  opacity: 0.4;
}

.tool-name {
  font-weight: 600;
  font-size: 13px;
}

.tool-desc {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1.4;
}

@media (max-width: 720px) {
  .tool-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 420px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}