/* ── Viewport & Canvas ── */
#tree-viewport {
  overflow: hidden;
  position: relative;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
#tree-viewport:active { cursor: grabbing; }
#tree-canvas {
  position: absolute;
  transform-origin: 0 0;
  will-change: transform;
}

/* ── Person Cards ── */
.person-card {
  position: absolute;
  width: 186px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
  padding: 10px 12px;
  cursor: pointer;
  transition: box-shadow .15s, transform .15s;
  display: flex;
  align-items: center;
  gap: 10px;
}
.person-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
  transform: translateY(-1px);
  z-index: 10;
}
.person-card.male   { border-left: 3px solid #60a5fa; }
.person-card.female { border-left: 3px solid #f472b6; }
.person-card.unknown{ border-left: 3px solid #94a3b8; }

.person-card.highlight {
  box-shadow: 0 0 0 3px #fbbf24, 0 4px 12px rgba(251,191,36,.3);
  animation: pulse-highlight 2s ease-out forwards;
  z-index: 15;
}

@keyframes pulse-highlight {
  0% { box-shadow: 0 0 0 3px #fbbf24, 0 0 20px rgba(251,191,36,.5); }
  70% { box-shadow: 0 0 0 3px #fbbf24, 0 4px 12px rgba(251,191,36,.3); }
  100% { box-shadow: 0 1px 3px rgba(0,0,0,.06); }
}

.card-photo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid #f1f5f9;
}
.card-silhouette {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card-silhouette svg {
  width: 28px;
  height: 28px;
  margin-top: 6px;
}
.sil-male { background: #dbeafe; }
.sil-female { background: #fce7f3; }
.sil-unknown { background: #f1f5f9; }
.dark .sil-male { background: #1e3a5f; }
.dark .sil-female { background: #4a1942; }
.dark .sil-unknown { background: #334155; }
.card-name {
  font-weight: 600;
  font-size: 13px;
  color: #1e293b;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-geb {
  font-weight: 400;
  font-size: 10px;
  color: #94a3b8;
}
.card-dates {
  font-size: 11px;
  color: #64748b;
  line-height: 1.3;
}
.card-place {
  font-size: 10px;
  color: #94a3b8;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── SVG Lines Layer ── */
#lines-layer {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  overflow: visible;
}
.connector {
  fill: none;
  stroke: #cbd5e1;
  stroke-width: 1.5;
}
.marriage-line {
  stroke: #c7d2fe;
  stroke-width: 2;
  stroke-dasharray: 6 3;
}
/* Relationship path highlight */
.path-highlight {
  stroke: #f59e0b;
  stroke-width: 3;
  stroke-dasharray: 8 4;
  opacity: 0.9;
  animation: path-pulse 1.5s ease-in-out infinite;
}
@keyframes path-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
.person-card.on-path {
  box-shadow: 0 0 0 3px #f59e0b, 0 4px 12px rgba(245,158,11,.3) !important;
  z-index: 12;
}
.dark .path-highlight { stroke: #fbbf24; }
.dark .person-card.on-path {
  box-shadow: 0 0 0 3px #fbbf24, 0 4px 12px rgba(251,191,36,.3) !important;
}

.ancestor-line {
  stroke: #a78bfa;
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
  opacity: 0.7;
}

/* ── Expand/Collapse Button ── */
.expand-btn {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #e0e7ff;
  border: 2px solid #a5b4fc;
  color: #4f46e5;
  font-size: 16px;
  font-weight: bold;
  line-height: 18px;
  text-align: center;
  cursor: pointer;
  z-index: 5;
  transition: all .15s;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.expand-btn:hover {
  background: #c7d2fe;
  transform: scale(1.15);
  box-shadow: 0 2px 8px rgba(99,102,241,.3);
}
.expand-up-btn {
  font-size: 10px;
  line-height: 20px;
}

.expand-count {
  position: absolute;
  top: -8px;
  right: -10px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  background: #6366f1;
  color: white;
  font-size: 9px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid white;
  pointer-events: none;
}

/* ── Timeline ── */
.timeline {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 56px;
  z-index: 15;
  pointer-events: none;
  overflow: hidden;
  background: linear-gradient(to right, rgba(248,250,252,.95) 80%, transparent);
}

.timeline-marker {
  position: absolute;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 4px;
}

.timeline-label {
  display: inline-block;
  background: #e0e7ff;
  color: #4338ca;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.timeline-line {
  flex: 1;
  height: 1px;
  background: #c7d2fe;
  opacity: 0.5;
}

/* ── Side Panel ── */
.side-panel { transform: translateX(100%); transition: transform .3s cubic-bezier(.4,0,.2,1); }
.side-panel.open { transform: translateX(0); }

/* ── Breadcrumb ── */
.breadcrumb-item { transition: color .15s; }
.breadcrumb-item:hover { color: #4f46e5; }

/* ── Dark Mode ── */
.dark .person-card {
  background: #1e293b;
  border-color: #334155;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
}
.dark .person-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,.4);
}
.dark .person-card.male   { border-left-color: #3b82f6; }
.dark .person-card.female { border-left-color: #ec4899; }
.dark .person-card.unknown { border-left-color: #64748b; }
.dark .card-name { color: #e2e8f0; }
.dark .card-geb { color: #64748b; }
.dark .card-dates { color: #94a3b8; }
.dark .card-place { color: #64748b; }
.dark .card-photo,
.dark .card-silhouette { border-color: #334155; }
.dark .expand-count { border-color: #1e293b; }
.dark .connector { stroke: #475569; }
.dark .marriage-line { stroke: #6366f1; }
.dark .ancestor-line { stroke: #8b5cf6; }
.dark .expand-btn { background: #312e81; border-color: #6366f1; color: #a5b4fc; }
.dark .expand-btn:hover { background: #4338ca; }
.dark .expand-count { background: #6366f1; }
.dark .timeline { background: linear-gradient(to right, rgba(15,23,42,.95) 80%, transparent); }
.dark .timeline-label { background: #312e81; color: #a5b4fc; }
.dark .timeline-line { background: #4338ca; }
.dark .side-panel { background: #1e293b; border-color: #334155; }
.dark #tree-viewport { background: #0f172a; }
.dark #overlay { background: rgba(0,0,0,.5); }

/* ── Column Bridge (marriage line between family columns) ── */
.column-bridge {
  stroke: #c7d2fe;
  stroke-width: 3;
  stroke-dasharray: 8 4;
}
.dark .column-bridge { stroke: #6366f1; }

.bridge-label {
  position: absolute;
  font-size: 18px;
  color: #6366f1;
  z-index: 5;
  pointer-events: none;
}
.dark .bridge-label { color: #a5b4fc; }

.column-header {
  position: absolute;
  font-size: 14px;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  white-space: nowrap;
  transform: translateX(-50%);
  pointer-events: none;
}
.dark .column-header { color: #64748b; }

/* ── Mobile ── */
@media (max-width: 640px) {
  .expand-btn {
    width: 32px;
    height: 32px;
    font-size: 20px;
    line-height: 28px;
  }
  .expand-count {
    top: -6px;
    right: -8px;
    min-width: 20px;
    height: 20px;
    font-size: 10px;
  }
  .person-card {
    width: 160px;
    padding: 8px 10px;
    gap: 8px;
  }
  .card-name { font-size: 12px; }
  .card-dates { font-size: 10px; }
  .card-place { font-size: 9px; }
  .card-photo, .card-silhouette {
    width: 32px;
    height: 32px;
  }
  .card-silhouette svg {
    width: 22px;
    height: 22px;
  }
}

/* ── Print ── */
@media print {
  nav, footer, .side-panel, #overlay, #loading, .timeline,
  .expand-btn, button, #searchBox, #searchResults,
  select, label { display: none !important; }
  body { background: white !important; }
  #tree-viewport {
    position: static !important;
    height: auto !important;
    overflow: visible !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }
  #tree-canvas {
    position: static !important;
    transform: none !important;
  }
  .person-card {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
  .person-card.highlight { box-shadow: none !important; animation: none !important; }
}