/* ============================================================
   Interactive Node-Star Network page
   ============================================================ */

.network-page {
  /* widen the wrapper on this page only */
}

.network-page .site-wrapper.network-wrapper {
  max-width: 1200px;
}

.network-hero {
  padding: 2rem 0 1rem;
}

.network-hero h1 {
  font-size: 1.7rem;
  color: var(--color-primary);
  margin-bottom: .35rem;
}

.network-hero .subtitle {
  color: var(--color-accent);
  font-size: 1rem;
  margin-bottom: .8rem;
  font-weight: 500;
}

.network-hero p.lead {
  color: var(--color-muted);
  font-size: .95rem;
  max-width: 760px;
}

.network-hero .source-links {
  margin-top: .8rem;
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
}

.network-hero .source-links a {
  font-size: .82rem;
  padding: .2rem .6rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  text-decoration: none;
  color: var(--color-primary);
  background: var(--color-surface);
}

.network-hero .source-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Toolbar */
.network-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1rem;
}

.view-toggle {
  display: inline-flex;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 3px;
}

.view-toggle button {
  background: transparent;
  border: none;
  padding: .45rem .9rem;
  font-size: .85rem;
  color: var(--color-muted);
  cursor: pointer;
  border-radius: 6px;
  font-family: inherit;
}

.view-toggle button.active {
  background: var(--color-primary);
  color: #fff;
}

.view-toggle button:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.network-hint {
  font-size: .8rem;
  color: var(--color-muted);
}

/* Main layout */
.network-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .network-layout {
    grid-template-columns: 1fr;
  }
}

.network-canvas {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 560px;
}

.network-canvas svg {
  width: 100%;
  height: 100%;
  display: block;
  min-height: 560px;
}

.network-canvas .canvas-helper {
  position: absolute;
  bottom: .8rem;
  left: 1rem;
  font-size: .75rem;
  color: var(--color-muted);
  pointer-events: none;
}

.network-canvas .back-button {
  position: absolute;
  top: .8rem;
  left: .8rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: .35rem .7rem;
  border-radius: 6px;
  font-size: .8rem;
  color: var(--color-muted);
  cursor: pointer;
  font-family: inherit;
}

.network-canvas .back-button:hover {
  color: var(--color-primary);
  border-color: var(--color-accent);
}

/* Sidebar */
.network-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  align-self: start;
  font-size: .9rem;
}

.network-sidebar h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: .8rem;
}

.network-sidebar h4 {
  font-size: .85rem;
  margin: 1rem 0 .4rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: .4rem;
}

.network-sidebar ul {
  list-style: disc;
  padding-left: 1.1rem;
  color: var(--color-muted);
  font-size: .82rem;
}

.network-sidebar ul li {
  margin-bottom: .15rem;
}

.layer-row {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: .4rem;
  font-size: .85rem;
  color: var(--color-text);
}

.layer-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex-shrink: 0;
}

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

.node-header {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin-bottom: .4rem;
}

.node-badge {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .82rem;
  flex-shrink: 0;
}

.node-title {
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.25;
  font-size: .95rem;
}

.node-sublabel {
  font-size: .75rem;
  color: var(--color-muted);
}

.edge-list {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.edge-list button {
  text-align: left;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: .3rem .5rem;
  font-size: .76rem;
  color: var(--color-text);
  cursor: pointer;
  font-family: inherit;
  display: flex;
  gap: .5rem;
  align-items: center;
}

.edge-list button:hover {
  border-color: var(--color-accent);
}

.edge-list .edge-id {
  font-weight: 700;
  flex-shrink: 0;
}

.edge-list .edge-label {
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.empty-edges {
  font-size: .76rem;
  color: var(--color-muted);
  font-style: italic;
}

.sidebar-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1rem 0 .6rem;
}

.view-star-btn {
  margin-top: 1rem;
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  padding: .55rem;
  border: none;
  border-radius: 6px;
  font-size: .85rem;
  cursor: pointer;
  font-family: inherit;
}

.view-star-btn:hover {
  background: var(--color-accent);
}

/* SVG node hover */
.node-group { cursor: pointer; }
.node-group circle { transition: r .15s ease; }
.node-group:hover circle.node-bg { filter: brightness(1.1); }

/* Sidebar legend section */
.sidebar-section + .sidebar-section {
  margin-top: 1.2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}