/* ==========================================================================
   TRISGRAPH-PAGE.CSS — Custom Styles for Dedicated TrisGraph Explorer
   ========================================================================== */

/* Full-height layout structure below header */
.page-trisgraph {
  background-color: #ffffff;
  overflow: auto;
}

.trisgraph-page-layout {
  display: flex;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  min-height: 500px;
}

/* --------------------------------------------------------------------------
   LEFT PANEL: SIDEBAR CONTROLS
   -------------------------------------------------------------------------- */
.trisgraph-sidebar {
  width: 400px;
  flex-shrink: 0;
  background-color: #fafafa;
  border-right: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  overflow-y: auto;
  height: 100%;
  box-sizing: border-box;
}

.sidebar-header {
  display: flex;
  flex-direction: column;
}

.sidebar-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.sidebar-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Node search inputs */
.search-box {
  position: relative;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 0.85rem 1.25rem;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text-primary);
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input:focus {
  border-color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}

.search-results-indicator {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: #c0c0c0;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.search-results-indicator.active {
  opacity: 1;
}

/* Trail Selectors list */
.filter-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.filter-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #999999;
}

.trail-selectors {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.trail-selector-btn {
  display: flex;
  align-items: center;
  gap: 1.125rem;
  background: #ffffff;
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  text-align: left;
  cursor: pointer;
  width: 100%;
  font-family: inherit;
  transition: all var(--transition);
}

.trail-selector-btn:hover {
  border-color: #bbbbbb;
  transform: translateY(-1px);
}

.trail-selector-btn.active {
  border-color: var(--text-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}

.btn-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e0e0e0;
  flex-shrink: 0;
  transition: background-color var(--transition), transform var(--transition);
}

.trail-selector-btn.active .btn-bullet {
  background: var(--text-primary);
  transform: scale(1.3);
}

.btn-content h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}

.btn-content p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

/* Dynamic details card in sidebar */
.sidebar-details-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex-grow: 1;
}

.sequence-title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.sequence-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Vertical steps layout for selected trail mapping */
.sequence-steps-container {
  display: flex;
  flex-direction: column;
  position: relative;
  padding-left: 1.5rem;
  margin: 0.5rem 0;
}

/* Vertical line behind items */
.sequence-steps-container::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background-color: #eaeaea;
}

.sequence-step {
  position: relative;
  margin-bottom: 1.25rem;
}

.sequence-step:last-child {
  margin-bottom: 0;
}

.sequence-step::before {
  content: '';
  position: absolute;
  left: -23px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid #c0c0c0;
  transition: all var(--transition);
}

.sequence-step.active::before {
  background: var(--text-primary);
  border-color: var(--text-primary);
}

.step-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.1rem;
  display: block;
}

.step-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: block;
}

.sidebar-cta-container {
  margin-top: auto;
}

.btn-sidebar-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.75rem;
  background: var(--text-primary);
  color: #ffffff;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background-color var(--transition);
}

.btn-sidebar-cta:hover {
  background-color: #222222;
}


/* --------------------------------------------------------------------------
   RIGHT PANEL: CANVAS & GRAPH DISPLAY
   -------------------------------------------------------------------------- */
.trisgraph-canvas-container {
  flex-grow: 1;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.canvas-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  background: #ffffff;
  z-index: 5;
}

.canvas-controls {
  display: flex;
  gap: 0.5rem;
}

.canvas-btn {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: #ffffff;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition);
}

.canvas-btn:hover {
  border-color: #999999;
}

.canvas-btn.active {
  background: var(--text-primary);
  color: #ffffff;
  border-color: var(--text-primary);
}

.canvas-legend {
  display: flex;
  gap: 1.25rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot.active {
  background: var(--text-primary);
  box-shadow: 0 0 6px rgba(0,0,0,0.2);
}

.legend-dot.connected {
  background: #ffffff;
  border: 1.5px solid var(--text-primary);
}

.trisgraph-canvas {
  flex-grow: 1;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  box-sizing: border-box;
  overflow: hidden;
}

.trisgraph-page-svg {
  width: 100%;
  height: 100%;
  max-width: 850px;
  max-height: 550px;
  overflow: visible;
  display: block;
}

/* --------------------------------------------------------------------------
   NETWORK GRAPH SVG STYLING
   -------------------------------------------------------------------------- */
.trisgraph-line {
  stroke: #eaeaea;
  stroke-width: 1.5px;
  stroke-linecap: round;
  transition: stroke 0.4s ease, stroke-width 0.4s ease, stroke-dasharray 0.4s ease, opacity 0.4s ease;
}

.trisgraph-node-circle {
  fill: #ffffff;
  stroke: #d9d9d9;
  stroke-width: 2px;
  cursor: pointer;
  transition: fill 0.4s cubic-bezier(0.16, 1, 0.3, 1), stroke 0.4s cubic-bezier(0.16, 1, 0.3, 1), stroke-width 0.4s cubic-bezier(0.16, 1, 0.3, 1), r 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.trisgraph-node-text {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 500;
  fill: #a8a8a8;
  letter-spacing: -0.01em;
  pointer-events: none;
  transition: fill 0.4s ease, font-weight 0.4s ease, opacity 0.4s ease;
}

.node-infotris .trisgraph-node-text {
  font-size: 11px;
}

/* Active central nodes highlight standard */
.node-infotris .trisgraph-node-circle {
  fill: #111111;
  stroke: #111111;
  filter: url(#node-glow);
}

/* DEFAULT trail focus rules: Dim everything else */
.page-trisgraph[data-view-mode="trail"] [data-active-path] .trisgraph-line {
  stroke: #eaeaea;
  stroke-width: 1.2px;
  opacity: 0.25;
}

.page-trisgraph[data-view-mode="trail"] [data-active-path] .trisgraph-node-group .trisgraph-node-circle {
  fill: #ffffff;
  stroke: #eaeaea;
  opacity: 0.4;
}

.page-trisgraph[data-view-mode="trail"] [data-active-path] .trisgraph-node-group .trisgraph-node-text {
  fill: #c0c0c0;
  font-weight: 500;
  opacity: 0.4;
}

/* Core Flow Active Animations */
.page-trisgraph[data-view-mode="trail"][data-active-path="python"] .path-python {
  stroke: #111111;
  stroke-width: 2.2px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="python"] .node-python .trisgraph-node-circle {
  fill: #ffffff;
  stroke: #111111;
  stroke-width: 2.5px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="python"] .node-python .trisgraph-node-text {
  fill: #111111;
  font-weight: 600;
  opacity: 1;
}

.page-trisgraph[data-view-mode="trail"][data-active-path="ai"] .path-ai {
  stroke: #111111;
  stroke-width: 2.2px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="ai"] .node-ai .trisgraph-node-circle {
  fill: #ffffff;
  stroke: #111111;
  stroke-width: 2.5px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="ai"] .node-ai .trisgraph-node-text {
  fill: #111111;
  font-weight: 600;
  opacity: 1;
}

.page-trisgraph[data-view-mode="trail"][data-active-path="webdev"] .path-webdev {
  stroke: #111111;
  stroke-width: 2.2px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="webdev"] .node-webdev .trisgraph-node-circle {
  fill: #ffffff;
  stroke: #111111;
  stroke-width: 2.5px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="webdev"] .node-webdev .trisgraph-node-text {
  fill: #111111;
  font-weight: 600;
  opacity: 1;
}

.page-trisgraph[data-view-mode="trail"][data-active-path="datascience"] .path-datascience {
  stroke: #111111;
  stroke-width: 2.2px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="datascience"] .node-datascience .trisgraph-node-circle {
  fill: #ffffff;
  stroke: #111111;
  stroke-width: 2.5px;
  opacity: 1;
}
.page-trisgraph[data-view-mode="trail"][data-active-path="datascience"] .node-datascience .trisgraph-node-text {
  fill: #111111;
  font-weight: 600;
  opacity: 1;
}

/* Dynamic Animation Flows: Marching Ant offsets along paths */
.page-trisgraph[data-view-mode="trail"] .trisgraph-line.active-trail-flow {
  stroke: #111111 !important;
  stroke-width: 2.5px !important;
  stroke-dasharray: 6 5;
  animation: line-flow 16s linear infinite;
  opacity: 1 !important;
}

@keyframes line-flow {
  to {
    stroke-dashoffset: -200;
  }
}

/* Forces center node to always glow */
.page-trisgraph .node-infotris .trisgraph-node-circle {
  fill: #111111 !important;
  stroke: #111111 !important;
  opacity: 1 !important;
}
.page-trisgraph .node-infotris .trisgraph-node-text {
  fill: #111111 !important;
  font-weight: 700 !important;
  opacity: 1 !important;
}

/* --------------------------------------------------------------------------
   INTERACTION: HOVER STATE CLASSES (Added via JS)
   -------------------------------------------------------------------------- */
.trisgraph-node-group.active-hover-node .trisgraph-node-circle {
  fill: #111111 !important;
  stroke: #111111 !important;
  r: 9.5 !important;
  opacity: 1 !important;
}

.trisgraph-node-group.active-hover-node .trisgraph-node-text {
  fill: #111111 !important;
  font-weight: 700 !important;
  opacity: 1 !important;
}

.trisgraph-node-group.active-hover-neighbor .trisgraph-node-circle {
  stroke: #111111 !important;
  opacity: 1 !important;
  r: 7.5 !important;
}

.trisgraph-node-group.active-hover-neighbor .trisgraph-node-text {
  fill: #111111 !important;
  opacity: 1 !important;
}

.trisgraph-line.active-hover-line {
  stroke: #111111 !important;
  stroke-width: 2.5px !important;
  opacity: 1 !important;
}

.trisgraph-node-group.inactive-hover-node .trisgraph-node-circle {
  opacity: 0.15 !important;
}

.trisgraph-node-group.inactive-hover-node .trisgraph-node-text {
  opacity: 0.15 !important;
}

/* Node Search Highlight state */
.trisgraph-node-group.search-match-node .trisgraph-node-circle {
  fill: #111111 !important;
  stroke: #111111 !important;
  r: 10.5 !important;
  stroke-width: 4px !important;
  opacity: 1 !important;
  animation: pulse-ring 1.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

.trisgraph-node-group.search-match-node .trisgraph-node-text {
  fill: #111111 !important;
  font-weight: 700 !important;
  opacity: 1 !important;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(17, 17, 17, 0.4);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 8px rgba(17, 17, 17, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(17, 17, 17, 0);
  }
}

/* Floating bottom right details panel */
.canvas-floating-tooltip {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  width: 280px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  pointer-events: none;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: opacity var(--transition), transform var(--transition);
}

.tooltip-heading {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.tooltip-content {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.5;
}


/* --------------------------------------------------------------------------
   RESPONSIVE OVERRIDES
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .trisgraph-page-layout {
    flex-direction: column;
    height: auto;
    overflow-y: visible;
  }

  .trisgraph-sidebar {
    width: 100%;
    height: auto;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
  }

  .trisgraph-canvas-container {
    height: auto;
    min-height: 550px;
  }

  .trisgraph-canvas {
    padding: 2rem 1.5rem;
  }

  .canvas-floating-tooltip {
    bottom: 1.5rem;
    right: 1.5rem;
    left: 1.5rem;
    width: auto;
  }
}

@media (max-width: 480px) {
  .canvas-header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.5rem;
  }

  .canvas-legend {
    width: 100%;
    justify-content: space-between;
  }

  .trisgraph-canvas-container {
    min-height: 480px;
  }
}