/* ============================================================
   nodes.css — mind-map nodes, levels, states, code nodes, notes dot
   ============================================================ */

.mm-node {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 10px 22px 10px 18px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-primary);
  max-width: 260px;
  min-width: 90px;
  width: max-content;
  text-align: center;
  white-space: normal;
  word-break: normal;
  overflow-wrap: break-word;
  user-select: none;
  resize: none;
  overflow: visible;
  transition:
    box-shadow 0.15s ease,
    border-color 0.15s ease;
}
.mm-node:hover {
  background: var(--bg-card-hover);
}

.mm-node.level-0 {
  border-radius: 999px;
  padding: 16px 30px;
  font-size: 17px;
  font-weight: 700;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  border: none;
  color: #fff;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.mm-node.level-1 {
  font-size: 15px;
  font-weight: 600;
  border-color: #3f3f46;
}
.mm-node.level-2 {
  font-size: 13.5px;
  font-weight: 500;
  border-color: var(--border-color);
}
.mm-node.level-3 {
  font-size: 12.5px;
  font-weight: 400;
  color: #d4d4d8;
  border-color: #232326;
  opacity: 0.95;
}
.mm-node.level-4 {
  font-size: 11.5px;
  font-weight: 400;
  color: #a1a1aa;
  border-color: #1e1e21;
  opacity: 0.9;
  padding: 7px 12px;
}

.mm-node.selected {
  border-color: var(--accent) !important;
  box-shadow:
    0 0 0 2px rgba(139, 92, 246, 0.5),
    var(--shadow-glow);
}

.mm-node.linked {
  border-color: #f59e0b !important;
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.4);
}
.mm-node.linked::after {
  content: '🔗';
  font-size: 10px;
  margin-left: 6px;
  opacity: 0.8;
}

.mm-node.match-pulse {
  animation: pulseMatch 1.1s ease-in-out infinite;
}
@keyframes pulseMatch {
  0%,
  100% {
    box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.8);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.15);
  }
}

/* ---- Node color (driven by --node-color CSS variable) ---- */
.mm-node[data-color] {
  border-color: var(--node-color) !important;
  background: color-mix(in srgb, var(--node-color) 14%, var(--bg-card));
}
.mm-node[data-color]:hover {
  background: color-mix(in srgb, var(--node-color) 22%, var(--bg-card));
}
.mm-node.level-0[data-color] {
  background: color-mix(in srgb, var(--node-color) 85%, #000);
}

/* ---- Inline editor ---- */
.mm-node .node-edit-input {
  background: transparent;
  border: none;
  outline: none;
  color: inherit;
  font: inherit;
  width: 100%;
  max-width: 240px;
  min-width: 80px;
  resize: none;
  overflow: hidden;
  text-align: inherit;
  white-space: pre-wrap !important;
  word-break: break-word !important;
  overflow-wrap: anywhere !important;
}

/* ---- Collapse / expand toggle ---- */
.node-toggle {
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-sidebar);
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  user-select: none;
}
.node-toggle:hover {
  background: var(--accent);
  color: #fff;
}

/* ---- Resize handle ---- */
.node-resize-handle {
  position: absolute;
  right: -5px;
  bottom: -5px;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: var(--bg-sidebar);
  border: 1.5px solid var(--accent);
  cursor: nwse-resize;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 12;
}
.mm-node:hover .node-resize-handle,
.mm-node.selected .node-resize-handle {
  opacity: 1;
}

/* ---- Long-text clamping + "Show more" ---- */
.node-text.clamped {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.node-expand-btn {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  text-align: center;
  opacity: 0.85;
  user-select: none;
}
.node-expand-btn:hover {
  opacity: 1;
  text-decoration: underline;
}
.mm-node.level-0 .node-expand-btn {
  color: #ffffff;
  opacity: 0.85;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.mm-node.level-0 .node-expand-btn:hover {
  opacity: 1;
}

/* ---- Code nodes ---- */
.mm-node.code-node {
  background: #0d1117;
  border: 1.5px solid #30363d;
  border-radius: 8px;
  padding: 12px 14px 14px;
  max-width: 280px;
  text-align: left;
  cursor: pointer;
  overflow: visible;
}
.code-node-inner {
  overflow: hidden;
  max-width: 100%;
}
.code-node-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #58a6ff;
  background: rgba(88, 166, 255, 0.12);
  border: 1px solid rgba(88, 166, 255, 0.35);
  border-radius: 5px;
  padding: 2px 7px;
  margin-bottom: 8px;
}
.mm-node.code-node .node-text {
  display: -webkit-box;
  -webkit-line-clamp: 5;
  line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: 'Courier New', Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
  color: #c9d1d9;
  text-align: left;
}
.mm-node.code-node .node-expand-btn {
  display: block;
  margin-top: 8px;
  padding-bottom: 2px;
  color: #58a6ff;
  text-align: left;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: 10.5px;
}
.mm-node.code-node .node-expand-btn:hover {
  color: #79c0ff;
}

/* ---- Notes indicator dot ---- */
.node-notes-indicator {
  position: absolute;
  top: -6px;
  left: -6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #f59e0b;
  border: 1.5px solid var(--bg-canvas);
  box-shadow: 0 0 5px rgba(245, 158, 11, 0.6);
  pointer-events: none;
  z-index: 11;
}