/* ========================= Structure Page Overrides ========================= */

/* ========================= Structure Layout Skeleton ========================= */

/* ------------------------- Primary area (left) ------------------------- */

.structure-primary {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.structure-display .haiku-lines p {
  font-family: 'Dancing Script', 'Satisfy', cursive;
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: #2f2f2f;

  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.structure-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.control-status {
  text-align: center;
  white-space: nowrap;
}

/* ------------------------- Results column (middle) ------------------------- */

.structure-results {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* ------------------------- Filters column (right) ------------------------- */

.structure-filters {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.filter-input {
  /* search input placeholder */
}

.filter-controls {
  margin-top: auto;
}

.results-controls {
  margin-top: auto;
}

/* ========================= Structure Haiku Display ============================ */

.structure-display {
  display: flex;
  align-items: center;
  justify-content: center;

  padding: 3rem 2.5rem;
  min-height: 200px;

  text-align: center;

}

/* ======================== Structure panels, width, and scrolling =============== */

/* Haiku reading width */
.structure-display > * {
  max-width: 60rem;
  margin: 0 auto;
}

/* Panel boundaries (hairline) */
.structure-primary,
.structure-results,
.structure-filters {
  border: 3px solid rgba(0, 0, 0, 0.08);
}

/* Subtle separation between filter sections */
.structure-filters > * + * {
  margin-top: 0.75rem;
}

/* Make list items feel clickable without being loud */
.results-files .result-row,
.filter-tags .tag-item {
  cursor: pointer;
  padding: 0.15rem 0;
}

.results-files .result-row:hover,
.filter-tags .tag-item:hover {
  text-decoration: underline;
}

/* === tree layout === */

.tree-row.hl-ancestor:hover,
.tree-row.hl-match:hover,
.tree-row.hl-exact:hover {
  background: inherit;
}

/* === Structure 3-panel layout === */

.structure-main {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: 12px;
  max-height: 100%;
  overflow: hidden;
}

.structure-main {
  width: min(1200px, 92vw);
  height: 34rem;
}

/* Ensure equal height panels */
.structure-primary,
.structure-results,
.structure-filters {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

/* Constrain scrollable panels to container */
.structure-results,
.structure-filters {
  overflow: hidden;
}

/* Scroll only the content areas */
.structure-display {
  flex: 1;
}

.results-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.results-files {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.filter-list {
  flex: 1;
  min-height: 0;

  display: flex;
  flex-direction: column;
}

.filter-pairs {
  flex: 1;
  min-height: 0;

  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.filter-tags,
.filter-results {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.filter-results {
  display: none;
}

.filter-tags {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding-bottom: 0.5rem;
}

main.explore,
.structure-layout {
  max-width: none;
  width: 100%;
}

/* ==================== Structure Explore – understated About-style links + scrolling ============ */

.structure-layout .results-files a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 62, 70, 0.25);
  font-weight: 400;
}

.structure-layout .results-files a:hover {
  border-bottom-color: rgba(47, 62, 70, 0.45);
}

/* Visible but quiet scrollbar */
.structure-layout .results-files::-webkit-scrollbar {
  width: 8px;
}

.structure-layout .results-files::-webkit-scrollbar-track {
  background: transparent;
}

.structure-layout .results-files::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
}

.structure-layout .filter-tags::-webkit-scrollbar {
  width: 8px;
}

.structure-layout .filter-tags::-webkit-scrollbar-track {
  background: transparent;
}

.structure-layout .filter-tags::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
}

/* Hide tag footer inside haiku display (structure explore only) */
.structure-display .haiku-tags {
  display: none;
}

/* ========================= Structure Controls – Buttons ========================= */

.structure-controls button,
.filter-controls button {
  background: transparent;
  border: 1px solid rgba(0, 0, 0, 0.25);
  padding: 0.35rem 0.75rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
}

.structure-controls button:hover,
.filter-controls button:hover {
  background: rgba(0, 0, 0, 0.04);
}

.structure-controls button:disabled {
  opacity: 0.4;
  cursor: default;
}

.structure-controls button {
  font-size: 0.85rem;
  padding: 0.25rem 0.6rem;
}

/* ======================= Tag Styling Overrides (Structure Explore) ========================= */

.structure-layout .filter-tags {
  padding-top: 0.25rem;
}

/* Tag rows */
.structure-layout .filter-tags .tag-item {
  display: block;
  padding: 0.35rem 0.4rem;
  line-height: 1.35;
  border-radius: 4px;

  color: var(--ink);
  text-decoration: none;
}

/* Hover affordance (quiet) */
.structure-layout .filter-tags .tag-item:hover {
  background: rgba(0, 0, 0, 0.04);
  text-decoration: none; /* override earlier underline */
}

/* Active / selected state (ONLY if JS already applies .active) */
.structure-layout .filter-tags .tag-item.active {
  background: rgba(0, 0, 0, 0.07);
  font-weight: 500;
}

/* ======================== Button Styling Overrides (Structure Explore) ======================== */

.structure-layout .structure-controls button,
.structure-layout .filter-controls button {
  border-radius: 6px;
  line-height: 1.2;

  transition:
    background-color 120ms ease,
    border-color 120ms ease,
    color 120ms ease;
}

/* Hover */
.structure-layout .structure-controls button:hover,
.structure-layout .filter-controls button:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.35);
}

/* Active / pressed */
.structure-layout .structure-controls button:active,
.structure-layout .filter-controls button:active {
  background: rgba(0, 0, 0, 0.08);
}

/* Disabled */
.structure-layout .structure-controls button:disabled,
.structure-layout .filter-controls button:disabled {
  opacity: 0.45;
  cursor: default;
}

/* ========================= Structure Tree ========================= */

.structure-tree {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 0.25rem;
}

.structure-right {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.structure-panel-footer {
  flex: 0 0 auto;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.structure-tree-root {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.tree-row {
  line-height: 1.4;
  white-space: nowrap;
  user-select: none;
}

.tree-row[data-depth="1"] { font-size: 1.02rem; }
.tree-row[data-depth="2"] { font-size: 1.05rem; }
.tree-row[data-depth="3"] { font-size: 1.08rem; }
.tree-row[data-depth="4"] { font-size: 1.11rem; }

.tree-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.tree-dir {
  cursor: pointer;
  font-weight: 500;
}

.tree-file {
  font-weight: 400;
  opacity: 0.85;
}

/* Tree Directory Styling */
.tree-dir::before {
  content: none;
}

.tree-row:hover {
  background: rgba(0, 0, 0, 0.035);
  border-radius: 4px;
}

.tree-row.hl-ancestor:hover,
.tree-row.hl-match:hover,
.tree-row.hl-exact:hover {
  background: inherit;
}

/* Ancestors: styling */

.hl-ancestor,
.hl-match,
.hl-exact {
  padding-left: 0;
  padding-right: 0;
  border-radius: 3px;
}

/* ========================= Depth-based Heat Refinement ========================= */

/* Ancestors: cooler, depth-aware */
.tree-row[data-depth="1"].hl-ancestor { background: rgba(180, 160, 120, 0.08); }
.tree-row[data-depth="2"].hl-ancestor { background: rgba(180, 160, 120, 0.12); }
.tree-row[data-depth="3"].hl-ancestor { background: rgba(180, 160, 120, 0.16); }
.tree-row[data-depth="4"].hl-ancestor { background: rgba(180, 160, 120, 0.20); }

/* Matches: warmer */
.tree-row[data-depth="1"].hl-match { background: rgba(120, 160, 200, 0.18); }
.tree-row[data-depth="2"].hl-match { background: rgba(120, 160, 200, 0.22); }
.tree-row[data-depth="3"].hl-match { background: rgba(120, 160, 200, 0.26); }
.tree-row[data-depth="4"].hl-match { background: rgba(120, 160, 200, 0.30); }

/* Exact match: hottest, depth-independent emphasis */
.hl-exact {
  background: rgba(220, 120, 80, 0.38);
  font-weight: 600;
}

/* ======================================================================
   Structure Tree – Final Additions (post-review, additive only)
   ====================================================================== */

/* === Prevent horizontal spillover (long paths / filenames) === */

.structure-tree {
  overflow-x: hidden;
}

.tree-row {
  max-width: 100%;
}

.tree-label {
  overflow: visible;
  white-space: normal;
  word-break: break-word;
}

/* === Click affordance (subtle, no buttons) === */

.tree-dir:hover,
.tree-file:hover {
  text-decoration: underline;
}

/* === Active (currently loaded) file === */
/* JS may toggle .is-active on the row */

.tree-row.is-active {
  background: rgba(60, 60, 60, 0.08);
  font-weight: 500;
}

/* === Reset button emphasis (still understated) === */

.structure-reset-btn {
  border-color: rgba(120, 80, 60, 0.45);
}

.structure-reset-btn:hover {
  background: rgba(120, 80, 60, 0.08);
}

/* === Query input styling === */

.structure-query input {
  width: 100%;
  padding: 0.35rem 0.5rem;
  font-family: inherit;
  font-size: 0.9rem;

  border: 1px solid rgba(0, 0, 0, 0.25);
  border-radius: 4px;
}

.structure-query input:focus {
  outline: none;
  border-color: rgba(0, 0, 0, 0.45);
}

/* === Directory vs file tone (very subtle differentiation) === */

.tree-dir {
  color: rgba(0, 0, 0, 0.85);
}

.tree-file {
  color: rgba(0, 0, 0, 0.7);
}