/* Explorer page layout (DESIGN.md §7.1): sidebar + full-bleed viewport. */

.explorer {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 12px;
  padding: 12px;
}

.explorer-sidebar {
  min-width: 0;
  max-height: calc(100vh - 120px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 4px;
}

.explorer-viewport {
  position: relative;
  /* Deterministic height (mirrors the sidebar cap): the viewport must never
     size itself from its own canvas, or resize feedback loops the layout. */
  height: calc(100vh - 120px);
  min-height: 420px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  color: var(--text);
}
.explorer-viewport .panzoom {
  height: 100%;
}

/* Infinite mode: the map's viewport, re-fitted into the explorer's own
   deterministically-sized container. Height comes from the PARENT (100%),
   never from the canvas — same layout rule, one level up. */
.explorer-viewport .map-viewport.explorer-infinite {
  height: 100%;
  min-height: 0;
  border: none;
  border-radius: 0;
}

/* Rooted / infinite switch. */
.mode-row {
  align-items: center;
}
.mode-switch {
  display: inline-flex;
  gap: 4px;
}
.mode-switch button {
  padding: 4px 9px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  font: inherit;
}
.mode-switch button.is-active {
  border-color: var(--accent);
  color: var(--accent);
}
.mode-switch button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Inline "do this instead" affordance inside a badge/paragraph. */
.link-button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
}

.is-unavailable legend {
  opacity: 0.6;
}
.map-hud-error {
  color: #ffb4b4;
}

/* Mobile: the sidebar becomes a scrollable sheet under the viewport. */
@media (max-width: 900px) {
  .explorer {
    grid-template-columns: minmax(0, 1fr);
  }
  .explorer-sidebar {
    max-height: none;
    order: 2;
  }
  .explorer-viewport {
    order: 1;
    height: 60vh;
  }
}

/* Level stepper (also used by the dev gallery's own stylesheet). */
.level-stepper {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.level-stepper button {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
.level-stepper em {
  font-style: normal;
  font-size: 11px;
  color: var(--muted);
}

.explorer-matchings .matching-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}

.combo-readout {
  margin: 0 0 6px;
  font-size: 12px;
}
.combo-readout code {
  word-break: break-all;
}

.tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
.tool-row button {
  padding: 4px 9px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
.tool-row button.is-active {
  border-color: var(--accent);
  color: var(--accent);
}

.explorer-advanced {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  background: var(--panel);
}
.explorer-advanced summary {
  cursor: pointer;
  font-weight: 600;
}
.contract-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  margin: 4px 0;
}
.contract-row .contract-name {
  min-width: 74px;
  color: var(--muted);
}
.contract-row.is-inactive .contract-name,
.contract-row.is-inactive em {
  opacity: 0.5;
}
.contract-row em {
  min-width: 52px;
  text-align: right;
  font-style: normal;
  color: var(--muted);
}

.tiling-overlays {
  color: var(--text);
  pointer-events: none;
}

.analysis-veil {
  position: absolute;
  inset: auto 12px 12px auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  font-size: 12px;
}
.spinner {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  animation: explorer-spin 800ms linear infinite;
}
@keyframes explorer-spin {
  to {
    transform: rotate(360deg);
  }
}

.viewport-caption {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-size: 12px;
  pointer-events: none;
}

.share-pin {
  align-self: flex-start;
}