/* ============================================================
   TREE VISUALIZATION STYLES
   ============================================================ */

/* ── SVG Connector Layer ─────────────────────────────────────── */
.tree-svg-layer {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: visible;
}

.tree-connector {
  fill: none;
  stroke: var(--tree-connector-color);
  stroke-width: var(--tree-connector-width);
  stroke-linecap: round;
}

.tree-connector--spouse {
  stroke: var(--color-neutral-400);
  stroke-dasharray: 6 4;
}

.tree-connector--highlight {
  stroke: var(--color-brand-400);
  stroke-width: 2.5px;
}

/* ── Tree Node ───────────────────────────────────────────────── */
/* [FIXED] Use min-height so content never gets clipped */
.tree-node {
  position: absolute;
  width: var(--tree-node-width);
  min-height: var(--tree-node-height);
  height: auto;
  background: var(--color-bg-surface);
  border: 2px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: var(--space-3) var(--space-3) var(--space-2);
  gap: var(--space-1);
  user-select: none;
  will-change: transform;
}

.tree-node:hover {
  border-color: var(--color-brand-400);
  box-shadow: var(--shadow-md), 0 0 0 3px rgba(74,98,245,0.12);
  transform: translateY(-1px);
  z-index: var(--z-raised);
}

.tree-node.is-selected {
  border-color: var(--color-brand-500);
  box-shadow: var(--shadow-lg), 0 0 0 4px rgba(74,98,245,0.18);
  z-index: var(--z-raised);
}

/* Gender color coding */
.tree-node[data-gender="male"] {
  background: var(--color-node-male);
  border-color: var(--color-node-male-border);
}
.tree-node[data-gender="female"] {
  background: var(--color-node-female);
  border-color: var(--color-node-female-border);
}
.tree-node[data-gender="unknown"] {
  background: var(--color-node-unknown);
  border-color: var(--color-node-unknown-border);
}

/* Root node */
.tree-node.is-root {
  border-width: 3px;
  border-style: solid;
}

/* Deceased */
.tree-node.is-deceased {
  opacity: 0.70;
}

.tree-node.is-deceased::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: calc(var(--radius-lg) - 2px);
  border: 1px dashed currentColor;
  opacity: 0.3;
  pointer-events: none;
}

/* ── Node Content ────────────────────────────────────────────── */
.tree-node__avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-neutral-0);
  flex-shrink: 0;
  margin-bottom: var(--space-1);
}

.tree-node[data-gender="male"]    .tree-node__avatar { background: var(--color-brand-500); }
.tree-node[data-gender="female"]  .tree-node__avatar { background: #db2777; }
.tree-node[data-gender="unknown"] .tree-node__avatar { background: var(--color-neutral-400); }

/* [FIXED] Name now supports 2-line wrap with ellipsis on overflow */
.tree-node__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-align: center;
  line-height: var(--line-height-snug);
  max-width: 100%;
  white-space: normal;
  overflow: hidden;
  /* 2-line clamp with cross-browser ellipsis */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
  text-overflow: ellipsis;
}

.tree-node__years {
  font-size: var(--font-size-2xs);
  color: var(--color-text-tertiary);
  letter-spacing: var(--letter-spacing-wide);
}

.tree-node__actions {
  position: absolute;
  top: -12px;
  right: -10px;
  display: flex;
  gap: var(--space-1);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.tree-node:hover .tree-node__actions,
.tree-node.is-selected .tree-node__actions {
  opacity: 1;
  pointer-events: all;
}

.tree-node__action-btn {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-bg-surface);
  border: 1.5px solid var(--color-border-default);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.tree-node__action-btn:hover {
  background: var(--color-brand-500);
  border-color: var(--color-brand-500);
  color: white;
}

/* ── Node Drag State ─────────────────────────────────────────── */
.tree-node.is-dragging {
  opacity: 0.6;
  cursor: grabbing;
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
}

/* ── Couple Container ────────────────────────────────────────── */
.couple-container {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0;
}

.couple-connector-bar {
  width: 40px;
  height: 2px;
  background: var(--color-neutral-300);
  position: relative;
}

.couple-connector-bar::after {
  content: '♥';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  color: #db2777;
  background: var(--color-bg-app);
  padding: 0 4px;
  line-height: 1;
}

/* ── Zoom level indicators ───────────────────────────────────── */
.zoom-indicator {
  position: absolute;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.zoom-indicator.is-visible { opacity: 1; }

/* ── Relationship Labels ─────────────────────────────────────── */
.relationship-label {
  position: absolute;
  font-size: var(--font-size-2xs);
  color: var(--color-text-tertiary);
  background: var(--color-bg-app);
  padding: 1px var(--space-1);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  border: 1px solid var(--color-border-default);
}

/* ── Add Node Button (inline) ───────────────────────────────── */
.add-node-btn {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-brand-500);
  color: white;
  border: 2px solid var(--color-bg-app);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.add-node-btn:hover {
  background: var(--color-brand-600);
  transform: scale(1.15);
}

/* ── RTL overrides ───────────────────────────────────────────── */
/* The SVG canvas is absolutely positioned so the tree itself
   renders identically in LTR and RTL; only the action buttons
   and action overlays need to mirror. */
[dir="rtl"] .tree-node__actions {
  right: auto;
  left: -10px;
}

[dir="rtl"] .canvas-controls {
  right: auto;
  left: var(--space-6);
}

[dir="rtl"] .zoom-indicator {
  left: 50%;
  transform: translateX(-50%);
}

/* Tree mode badge on node */
.tree-node__mode-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-brand-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  color: white;
  pointer-events: none;
}
[dir="rtl"] .tree-node__mode-badge {
  right: auto;
  left: 4px;
}

/* ── Family Root Node (apex label at top of tree) ────────────── */
.family-root-node {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-brand-500) 0%, var(--color-brand-700, #3347c8) 100%);
  color: #fff;
  border-radius: var(--radius-xl);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
  padding: 0 var(--space-6);
  height: 50px;
  min-width: var(--tree-node-width);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: 0 4px 20px rgba(74,98,245,0.40);
  letter-spacing: 0.02em;
  z-index: 2;
  pointer-events: none;
}

/* SVG dashed line from family root to root persons */
.family-root-connector {
  stroke: var(--color-brand-400);
  stroke-width: 2;
  stroke-dasharray: 7 4;
  fill: none;
  opacity: 0.75;
}