/* Expression Creator Page */

.expression-creator {
  max-width: 900px;
}

/* ── Template gallery ── */

.expression-templates {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-3);
}

.expression-template-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  padding: var(--spacing-3);
  border: 1px solid var(--color-border);
  background: var(--color-bg-light);
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s;
}

.expression-template-card:hover {
  border-color: var(--color-text);
}

.expression-template-card strong {
  font-size: 1rem;
}

.expression-template-card span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ── Builder ── */

.expression-field {
  margin-bottom: var(--spacing-2);
}

.expression-field label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-1);
  font-size: 0.85rem;
}

/* ── Stages ── */

.expression-stage {
  border: 1px solid var(--color-border);
  margin-bottom: var(--spacing-2);
}

.expression-stage__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2);
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.expression-stage__number {
  font-weight: 700;
  font-size: 0.85rem;
  min-width: 1.5em;
  text-align: center;
  color: var(--color-text-muted);
}

.expression-stage__header select {
  flex: 1;
}

.expression-stage__body {
  padding: var(--spacing-2);
}

/* ── Sort / Slice fields ── */

.expression-sort-fields,
.expression-slice-fields {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.expression-slice-fields label {
  font-size: 0.8rem;
  font-weight: 600;
}

.expression-slice-fields input {
  max-width: 100px;
}

/* ── Clauses ── */

.expression-clause {
  display: flex;
  align-items: center;
  gap: var(--spacing-1);
  margin-bottom: var(--spacing-1);
  flex-wrap: wrap;
}

.expression-clause select {
  min-width: 80px;
  max-width: 140px;
}

.expression-clause input {
  min-width: 80px;
}

.expression-clause__value {
  flex: 1;
  min-width: 150px;
}

.expression-clause-actions {
  display: flex;
  gap: var(--spacing-1);
  margin-top: var(--spacing-1);
}

/* ── JSON Preview ── */

.expression-preview {
  border: 1px solid var(--color-border);
}

.expression-preview summary {
  padding: var(--spacing-2);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  background: var(--color-bg-light);
}

.expression-preview__code {
  margin: 0;
  padding: var(--spacing-2);
  overflow-x: auto;
  font-size: 0.8rem;
  max-height: 400px;
  background: var(--color-bg);
}

/* ── Publish row ── */

.expression-publish {
  display: flex;
  gap: var(--spacing-2);
  align-items: center;
}

/* ── Result panel ── */

.expression-result {
  border: 1px solid var(--color-border);
  padding: var(--spacing-3);
  background: var(--color-bg-light);
}

.expression-result h3 {
  margin-top: 0;
}

.expression-result__link {
  margin-top: var(--spacing-2);
}

.expression-result__link label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-1);
  font-size: 0.85rem;
}

.expression-result__link input {
  width: 100%;
  font-family: monospace;
  font-size: 0.85rem;
}

.expression-result__actions {
  display: flex;
  gap: var(--spacing-2);
}

/* ── Responsive ── */

@media (max-width: 600px) {
  .expression-templates {
    grid-template-columns: 1fr;
  }

  .expression-clause {
    flex-direction: column;
    align-items: stretch;
  }

  .expression-clause select,
  .expression-clause input {
    max-width: none;
    width: 100%;
  }

  .expression-sort-fields,
  .expression-slice-fields {
    flex-direction: column;
    align-items: stretch;
  }
}