/* ==========================================================================
   Blauhaunt - Modern UI theme
   Layered on top of Bootstrap + style.css + dark-mode.css.
   Only visual/UX refinements - no structural or ID changes.
   ========================================================================== */

:root {
  --bh-accent: #4f46e5;
  --bh-accent-hover: #4338ca;
  --bh-accent-soft: rgba(79, 70, 229, 0.12);
  --bh-success: #16a34a;
  --bh-danger: #dc2626;
  --bh-info: #0ea5e9;
  --bh-surface: #ffffff;
  --bh-surface-2: #f4f5fb;
  --bh-bg: #eef1f8;
  --bh-border: #e2e5ee;
  --bh-text: #1f2430;
  --bh-muted: #6b7280;
  --bh-radius: 10px;
  --bh-radius-sm: 8px;
  --bh-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.10);
  --bh-shadow-md: 0 4px 12px rgba(16, 24, 40, 0.10), 0 2px 4px rgba(16, 24, 40, 0.06);
  --bh-shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.18);
  --bh-transition: 0.18s ease;
}

/* ---------- Base ---------- */
body {
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  background: linear-gradient(160deg, var(--bh-bg) 0%, #e6eaf5 100%);
  color: var(--bh-text);
  -webkit-font-smoothing: antialiased;
}

.container-fluid.vh-100 {
  background: transparent;
}

/* ---------- Navbar ---------- */
.navbar.bg-light {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--bh-border);
  box-shadow: var(--bh-shadow-sm);
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
}

.navbar .nav-item {
  display: flex;
  align-items: center;
  margin: 0 0.15rem;
}

#nodesConter,
#edgesCounter {
  font-weight: 700;
  color: var(--bh-accent);
}

/* ---------- Buttons ---------- */
.btn {
  border-radius: var(--bh-radius-sm);
  font-weight: 500;
  letter-spacing: 0.1px;
  transition: background-color var(--bh-transition), color var(--bh-transition),
    border-color var(--bh-transition), box-shadow var(--bh-transition),
    transform var(--bh-transition);
}

.btn:not(.dropdown-toggle-split):active {
  transform: translateY(1px);
}

.btn:focus,
.btn:focus-visible {
  box-shadow: 0 0 0 0.2rem var(--bh-accent-soft);
}

.btn i.fa,
.btn i.fas,
.btn i.far,
.btn i.fa-solid,
.btn i.fa-regular {
  margin-right: 0.4rem;
  opacity: 0.9;
}

.btn-group > .btn i.fa-only {
  margin-right: 0;
}

.btn-primary {
  background-color: var(--bh-accent);
  border-color: var(--bh-accent);
}

.btn-primary:hover {
  background-color: var(--bh-accent-hover);
  border-color: var(--bh-accent-hover);
}

.btn-outline-primary {
  color: var(--bh-accent);
  border-color: var(--bh-accent);
}

.btn-outline-primary:hover {
  background-color: var(--bh-accent);
  border-color: var(--bh-accent);
}

.btn-outline-secondary {
  color: #475069;
  border-color: #cdd3e0;
}

.btn-outline-secondary:hover {
  background-color: #475069;
  border-color: #475069;
}

.btn-success {
  background-color: var(--bh-success);
  border-color: var(--bh-success);
}

.btn-info {
  background-color: var(--bh-info);
  border-color: var(--bh-info);
  color: #fff;
}

.btn-check:checked + .btn-outline-secondary {
  background-color: var(--bh-accent);
  border-color: var(--bh-accent);
  color: #fff;
}

.btn-check:checked + .btn-outline-danger {
  background-color: var(--bh-danger);
  border-color: var(--bh-danger);
}

/* ---------- Sidebars (filters / stats) ---------- */
#filterSideBar,
#statsSideBar {
  background: var(--bh-surface);
  border: 1px solid var(--bh-border);
  border-radius: var(--bh-radius);
  box-shadow: var(--bh-shadow-lg);
  padding: 1rem 0.9rem !important;
  margin-top: 0.6rem;
}

#filterSideBar.show,
#statsSideBar.show {
  display: block;
}

#filterSideBar hr,
#statsSideBar hr {
  border: none;
  border-top: 1px solid var(--bh-border);
  opacity: 1;
  margin: 0.9rem 0;
}

#filterSideBar .btn-success {
  width: 100%;
  padding: 0.55rem;
  font-weight: 600;
  box-shadow: var(--bh-shadow-sm);
}

/* Scrollbar refinement */
#filterSideBar::-webkit-scrollbar,
#statsSideBar::-webkit-scrollbar,
.dropdown-menu::-webkit-scrollbar {
  width: 9px;
}

#filterSideBar::-webkit-scrollbar-thumb,
#statsSideBar::-webkit-scrollbar-thumb,
.dropdown-menu::-webkit-scrollbar-thumb {
  background: #c3c9d8;
  border-radius: 8px;
}

#filterSideBar::-webkit-scrollbar-thumb:hover,
#statsSideBar::-webkit-scrollbar-thumb:hover {
  background: #a7afc4;
}

/* ---------- Inputs ---------- */
.form-control,
.form-select {
  border-radius: var(--bh-radius-sm);
  border: 1px solid var(--bh-border);
  transition: border-color var(--bh-transition), box-shadow var(--bh-transition);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--bh-accent);
  box-shadow: 0 0 0 0.2rem var(--bh-accent-soft);
}

.input-group .form-control {
  border-radius: var(--bh-radius-sm) 0 0 var(--bh-radius-sm);
}

/* ---------- Dropdowns ---------- */
.dropdown-menu {
  border: 1px solid var(--bh-border);
  border-radius: var(--bh-radius);
  box-shadow: var(--bh-shadow-md);
  padding: 0.4rem;
}

.dropdown-item {
  border-radius: var(--bh-radius-sm);
  padding: 0.45rem 0.7rem;
  transition: background-color var(--bh-transition);
}

.dropdown-item:hover {
  background-color: var(--bh-accent-soft);
}

/* ---------- Tables (stats) ---------- */
.table {
  border-radius: var(--bh-radius-sm);
  overflow: hidden;
}

.table thead th {
  background: var(--bh-surface-2);
  border-bottom: 2px solid var(--bh-border);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--bh-muted);
}

#statsSideBar details > summary {
  cursor: pointer;
  padding: 0.5rem 0.6rem;
  border-radius: var(--bh-radius-sm);
  background: var(--bh-surface-2);
  list-style: none;
  transition: background-color var(--bh-transition);
}

#statsSideBar details > summary:hover {
  background: var(--bh-accent-soft);
}

/* Stats intro note - only shown while explain mode is active */
.stats-intro {
  display: none;
  gap: 0.5rem;
  align-items: flex-start;
  background: var(--bh-accent-soft);
  border: 1px solid var(--bh-border);
  border-left: 3px solid var(--bh-accent);
  border-radius: var(--bh-radius-sm);
  padding: 0.6rem 0.75rem;
  margin-bottom: 0.9rem;
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--bh-text);
}

body.explain-mode .stats-intro {
  display: flex;
}

.stats-intro .fa {
  color: var(--bh-accent);
  margin-top: 0.15rem;
}

/* Reinforce that stat headers are explainable */
body.explain-mode #statsSideBar th[data-explain] {
  text-decoration: underline dotted var(--bh-accent);
  text-underline-offset: 3px;
}

/* ---------- Modals ---------- */
.modal-content {
  border: none;
  border-radius: var(--bh-radius);
  box-shadow: var(--bh-shadow-lg);
}

.modal-header {
  border-bottom: 1px solid var(--bh-border);
}

/* ---------- Main stage ---------- */
#stage {
  border-radius: var(--bh-radius);
  margin-top: 0.6rem;
}

#cy {
  border-radius: var(--bh-radius);
}

/* Timeline & Heatmap can grow beyond the viewport - give them scrollbars.
   The graph (cytoscape) must stay scrollbar-free since it pans/zooms.
   The :not(.d-none) is required so the view can still be hidden when
   switching to another render view (ID + !important would beat .d-none). */
#timeline:not(.d-none),
#heatmap:not(.d-none) {
  overflow: auto;
  /* Override Bootstrap .d-flex so sticky table headers work inside the pane */
  display: block !important;
  /* Override Bootstrap .container max-width so they span the full stage width */
  width: 100%;
  max-width: 100%;
  left: 0;
  right: 0;
  padding-left: 0;
  padding-right: 0;
}

#innerStage,
#cy {
  overflow: hidden;
}

#timeline::-webkit-scrollbar,
#heatmap::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}

#timeline::-webkit-scrollbar-thumb,
#heatmap::-webkit-scrollbar-thumb {
  background: #c3c9d8;
  border-radius: 8px;
}

#timeline::-webkit-scrollbar-thumb:hover,
#heatmap::-webkit-scrollbar-thumb:hover {
  background: #a7afc4;
}

#timeline::-webkit-scrollbar-track,
#heatmap::-webkit-scrollbar-track {
  background: transparent;
}

[data-theme="dark"] #timeline::-webkit-scrollbar-thumb,
[data-theme="dark"] #heatmap::-webkit-scrollbar-thumb {
  background: #414759;
}

/* Heatmap sticky user column (left) and date header row (top) */
#heatmap table {
  border-collapse: separate;
  border-spacing: 0;
}

/* The heatmap uses its own table class (not Bootstrap's .table, whose cell
   styling prevents position:sticky from working while scrolling). */
#heatmap .heatmap-table {
  width: max-content;
  color: inherit;
}

#heatmap .heatmap-table td,
#heatmap .heatmap-table th {
  padding: 6px 12px;
  border: 1px solid var(--bh-border);
  min-width: 44px;
  text-align: center;
}

/* Date header row stays at the top while scrolling vertically */
#heatmap thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--bh-surface);
  white-space: pre;
}

/* User column stays at the left while scrolling horizontally
   (scrolls vertically together with its row) */
#heatmap tbody th {
  position: sticky;
  left: 0;
  z-index: 1;
  background: var(--bh-surface);
  white-space: nowrap;
  text-align: left;
}

/* Top-left corner cell must stay pinned in both directions */
#heatmap thead th:first-child {
  left: 0;
  z-index: 3;
}

/* ==========================================================================
   Explain mode
   ========================================================================== */

/* Toggle in the navbar */
.explain-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--bh-border);
  background: var(--bh-surface);
  cursor: pointer;
  user-select: none;
  transition: all var(--bh-transition);
}

.explain-switch:hover {
  border-color: var(--bh-accent);
}

.explain-switch .form-check-input {
  cursor: pointer;
  margin: 0;
}

.explain-switch .form-check-input:checked {
  background-color: var(--bh-accent);
  border-color: var(--bh-accent);
}

.explain-switch label {
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
}

.explain-switch .fa {
  color: var(--bh-accent);
}

/* When explain mode is active, mark explainable elements */
body.explain-mode [data-explain]:hover,
body.explain-mode [data-bh-explain]:hover {
  outline: 2px dashed var(--bh-accent);
  outline-offset: 2px;
  border-radius: 4px;
  cursor: help;
}

body.explain-mode .explain-active-banner {
  display: flex;
}

/* Floating tooltip */
#bhExplainTip {
  position: fixed;
  z-index: 200000;
  max-width: 320px;
  background: #111827;
  color: #f9fafb;
  padding: 0.6rem 0.8rem;
  border-radius: var(--bh-radius-sm);
  font-size: 0.82rem;
  line-height: 1.4;
  box-shadow: var(--bh-shadow-lg);
  pointer-events: none;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.12s ease, transform 0.12s ease;
}

#bhExplainTip.show {
  opacity: 1;
  transform: translateY(0);
}

#bhExplainTip .bh-tip-title {
  display: block;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: #a5b4fc;
}

/* Small banner shown while explain mode is active */
.explain-active-banner {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 190000;
  align-items: center;
  gap: 0.5rem;
  background: var(--bh-accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--bh-shadow-md);
}

/* ==========================================================================
   Tools / settings menu (collapsed by default)
   ========================================================================== */
.tools-menu {
  display: none;
  position: fixed;
  top: 60px;
  right: 16px;
  z-index: 150000;
  width: 300px;
  max-height: calc(100vh - 80px);
  overflow: visible;
  background: var(--bh-surface);
  border: 1px solid var(--bh-border);
  border-radius: var(--bh-radius);
  box-shadow: var(--bh-shadow-lg);
  padding: 0.9rem;
}

.tools-menu.show {
  display: block;
  animation: bhFadeIn 0.16s ease;
}

@keyframes bhFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.tools-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  padding-bottom: 0.6rem;
  margin-bottom: 0.6rem;
  border-bottom: 1px solid var(--bh-border);
}

.tools-menu-header .fa {
  color: var(--bh-accent);
  margin-right: 0.35rem;
}

.tools-menu-row {
  margin-bottom: 0.75rem;
}

.tools-menu-row:last-child {
  margin-bottom: 0;
}

.tools-menu-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  color: var(--bh-muted);
  margin-bottom: 0.3rem;
}

.tools-menu .btn-group .btn:first-child {
  flex: 1 1 auto;
}

.tools-theme-switch {
  padding-left: 2.4rem;
}

.tools-theme-switch .form-check-label {
  font-weight: 500;
  cursor: pointer;
}

[data-theme="dark"] .tools-menu {
  background: var(--bh-surface);
  border-color: var(--bh-border);
}

/* ==========================================================================
   Graph popups (qtip2 node/edge details)
   ========================================================================== */
.qtip.qtip-bootstrap {
  background: var(--bh-surface);
  border: 1px solid var(--bh-border);
  border-radius: var(--bh-radius);
  box-shadow: var(--bh-shadow-lg);
  color: var(--bh-text);
  font-family: "Segoe UI", "Inter", system-ui, -apple-system, sans-serif;
  font-size: 0.85rem;
  line-height: 1.5;
  max-width: 380px;
}

.qtip.qtip-bootstrap .qtip-titlebar {
  background: var(--bh-surface-2);
  border-bottom: 1px solid var(--bh-border);
  border-radius: var(--bh-radius) var(--bh-radius) 0 0;
  padding: 0.45rem 0.8rem;
  color: var(--bh-text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.qtip.qtip-bootstrap .qtip-close {
  border-color: var(--bh-border);
}

.qtip.qtip-bootstrap .qtip-content {
  padding: 0.65rem 0.85rem;
  /* Safety cap so a popup never grows beyond the viewport */
  max-height: min(60vh, 480px);
  overflow-y: auto;
  word-break: break-word;
}

/* Long lists (event times, tags, users) become scrollable */
.qtip.qtip-bootstrap .list-group {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--bh-border);
  border-radius: var(--bh-radius-sm);
  margin-top: 0.35rem;
}

.qtip.qtip-bootstrap .list-group-item {
  background: var(--bh-surface-2);
  color: var(--bh-text);
  border-color: var(--bh-border);
  padding: 0.3rem 0.6rem;
  font-size: 0.78rem;
}

/* Nested lists (joined edges) get a tighter frame */
.qtip.qtip-bootstrap .list-group .list-group {
  max-height: 160px;
  margin-top: 0.25rem;
}

.qtip.qtip-bootstrap details > summary {
  cursor: pointer;
  padding: 0.3rem 0.55rem;
  border-radius: var(--bh-radius-sm);
  background: var(--bh-surface-2);
  transition: background-color var(--bh-transition);
}

.qtip.qtip-bootstrap details > summary:hover {
  background: var(--bh-accent-soft);
}

/* Compact "filter for" button (btn-xs no longer exists in Bootstrap 5) */
.qtip.qtip-bootstrap .btn-xs {
  padding: 0.25rem 0.6rem;
  font-size: 0.78rem;
  border-radius: var(--bh-radius-sm);
  margin-top: 0.4rem;
}

/* Themed scrollbars inside popups */
.qtip.qtip-bootstrap .qtip-content::-webkit-scrollbar,
.qtip.qtip-bootstrap .list-group::-webkit-scrollbar {
  width: 8px;
}

.qtip.qtip-bootstrap .qtip-content::-webkit-scrollbar-thumb,
.qtip.qtip-bootstrap .list-group::-webkit-scrollbar-thumb {
  background: #c3c9d8;
  border-radius: 8px;
}

.qtip.qtip-bootstrap .qtip-content::-webkit-scrollbar-thumb:hover,
.qtip.qtip-bootstrap .list-group::-webkit-scrollbar-thumb:hover {
  background: #a7afc4;
}

[data-theme="dark"] .qtip.qtip-bootstrap .qtip-content::-webkit-scrollbar-thumb,
[data-theme="dark"] .qtip.qtip-bootstrap .list-group::-webkit-scrollbar-thumb {
  background: #414759;
}

/* ==========================================================================
   Dark mode overrides
   ========================================================================== */
[data-theme="dark"] {
  --bh-surface: #1c1f27;
  --bh-surface-2: #23262f;
  --bh-bg: #14161c;
  --bh-border: #333844;
  --bh-text: #e5e7eb;
  --bh-muted: #9aa1b1;
}

[data-theme="dark"] body,
body[data-theme="dark"] {
  background: linear-gradient(160deg, #14161c 0%, #191c24 100%);
  color: var(--bh-text);
}

[data-theme="dark"] .navbar.bg-light {
  background: rgba(28, 31, 39, 0.85) !important;
  border-bottom: 1px solid var(--bh-border);
}

[data-theme="dark"] #filterSideBar,
[data-theme="dark"] #statsSideBar,
[data-theme="dark"] .dropdown-menu {
  background: var(--bh-surface);
  border-color: var(--bh-border);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: var(--bh-surface-2);
  border-color: var(--bh-border);
  color: var(--bh-text);
}

[data-theme="dark"] .table thead th,
[data-theme="dark"] #statsSideBar details > summary {
  background: var(--bh-surface-2);
}

[data-theme="dark"] .explain-switch {
  background: var(--bh-surface-2);
  border-color: var(--bh-border);
  color: var(--bh-text);
}

[data-theme="dark"] .btn-outline-secondary {
  color: #d6dae4;
  border-color: #414759;
}