:root {
  --bg: #0d1117;
  --bg-panel: #161b22;
  --bg-card: #21262d;
  --accent: #58a6ff;
  --accent2: #3fb950;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --border: #30363d;
  --f-none: #484f58;
  --f-low: #2ea043;
  --f-mid: #b08800;
  --f-high: #cf6f00;
  --f-danger: #da3633;
  --edge-sire: #388bfd;
  --edge-dam: #db61a2;
  --edge-inbreed: #e3b341;
  --node-highlight: #58a6ff;
  --panel-width: 270px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-size: 13px;
}

/* ── Header ── */
.header {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  flex-shrink: 0;
}
.header-logo {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
  margin-right: 8px;
}
.header-sep { flex: 1; }

.btn {
  padding: 5px 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  line-height: 1.5;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.btn:hover { background: #30363d; border-color: var(--accent); }
.btn-primary {
  background: #1f6feb;
  border-color: #388bfd;
  color: #fff;
}
.btn-primary:hover { background: #388bfd; }
.btn-danger { border-color: var(--f-danger); color: var(--f-danger); }
.btn-danger:hover { background: rgba(218,54,51,0.15); }

/* ── Main layout ── */
.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Side panel ── */
.panel {
  width: var(--panel-width);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}
.panel-section {
  border-bottom: 1px solid var(--border);
  padding: 12px;
}
.panel-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin-bottom: 10px;
}

/* Individual list */
.ind-list { max-height: 200px; overflow-y: auto; }
.ind-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 7px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.1s;
}
.ind-item:hover { background: var(--bg-card); }
.ind-item.selected { background: var(--bg-card); outline: 1px solid var(--accent); }
.sex-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700;
  flex-shrink: 0;
}
.sex-dot.M { background: #1565c0; }
.sex-dot.F { background: #880e4f; }
.sex-dot.U { background: #455a64; }
.ind-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.f-badge {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 8px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.fb-none { background: var(--f-none); color: #cdd9e5; }
.fb-low  { background: var(--f-low);  color: #fff; }
.fb-mid  { background: var(--f-mid);  color: #fff; }
.fb-high { background: var(--f-high); color: #fff; }
.fb-danger { background: var(--f-danger); color: #fff; }

/* Detail section */
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-size: 12px;
  border-bottom: 1px solid rgba(48,54,61,0.5);
}
.detail-row:last-child { border-bottom: none; }
.detail-key { color: var(--text-dim); }
.detail-val { font-weight: 500; }
.detail-empty { color: var(--text-dim); font-style: italic; font-size: 12px; }

/* Action buttons for selected individual */
.ind-actions { display: flex; gap: 6px; margin-top: 10px; }
.ind-actions .btn { flex: 1; justify-content: center; font-size: 11px; }

/* Mating simulator */
.mate-select {
  width: 100%;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
  font-size: 12px;
  margin-bottom: 7px;
}
.mate-select:focus { outline: none; border-color: var(--accent); }
.mate-result {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 10px;
  text-align: center;
  margin-top: 6px;
  border: 1px solid var(--border);
}
.mate-result-label { font-size: 10px; color: var(--text-dim); margin-bottom: 4px; }
.mate-result-f { font-size: 26px; font-weight: 700; line-height: 1; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin-bottom: 8px;
}
.stat-card {
  background: var(--bg-card);
  border-radius: 6px;
  padding: 8px 6px;
  text-align: center;
}
.stat-val { font-size: 17px; font-weight: 700; color: var(--accent); }
.stat-key { font-size: 10px; color: var(--text-dim); margin-top: 2px; }
.warning-ne {
  background: rgba(218,54,51,0.15);
  border: 1px solid var(--f-danger);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 11px;
  color: #ff7b72;
}
.hist-bar-wrap { margin-top: 8px; }
.hist-bar-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  font-size: 10px;
  color: var(--text-dim);
}
.hist-bar-bg {
  flex: 1;
  height: 10px;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
}
.hist-bar-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }

/* ── Canvas ── */
.canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #090d13;
}
#pedigree-svg {
  width: 100%;
  height: 100%;
  display: block;
}
.canvas-hint {
  position: absolute;
  bottom: 12px;
  right: 16px;
  font-size: 11px;
  color: var(--text-dim);
  pointer-events: none;
}

/* ── Footer ── */
.footer {
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 42px;
  flex-shrink: 0;
}
.footer-label { font-size: 11px; color: var(--text-dim); white-space: nowrap; }
.gen-slider {
  flex: 1;
  max-width: 280px;
  accent-color: var(--accent);
  cursor: pointer;
}
.search-input {
  padding: 4px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  font-size: 12px;
  width: 160px;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.status-bar { margin-left: auto; font-size: 11px; color: var(--text-dim); }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 500;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 24px;
  width: 420px;
  max-width: 96vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
}
.modal-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 2px;
}
.modal-close:hover { color: var(--text); }
.form-row { margin-bottom: 13px; }
.form-label {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 5px;
  font-weight: 500;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 18px;
}
.form-error {
  color: #ff7b72;
  font-size: 11px;
  margin-top: 4px;
}

/* ── Tooltip ── */
.tooltip {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 13px;
  font-size: 12px;
  pointer-events: none;
  z-index: 800;
  max-width: 240px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  display: none;
}
.tt-name { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.tt-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 2px 0;
}
.tt-key { color: var(--text-dim); }
.tt-val { font-weight: 500; }
.tt-sep { border-top: 1px solid var(--border); margin: 6px 0; }

/* ── SVG drawing ── */
.node-rect {
  transition: opacity 0.2s;
}
.edge-line {
  fill: none;
  stroke-width: 1.5;
  opacity: 0.65;
}
.edge-inbreed {
  stroke: var(--edge-inbreed) !important;
  stroke-dasharray: 7 3;
  stroke-width: 2 !important;
  opacity: 0.85 !important;
}
.gen-grid-line {
  stroke: rgba(255,255,255,0.04);
  stroke-dasharray: 5 5;
  fill: none;
}
.gen-grid-label {
  font-size: 11px;
  fill: rgba(255,255,255,0.12);
}
.node-group { cursor: pointer; }
.node-group.dimmed { opacity: 0.12; }
.node-group.highlighted .node-rect {
  stroke: var(--node-highlight) !important;
  stroke-width: 2.5 !important;
}
.node-group.selected-node .node-rect {
  stroke: #f0f6fc !important;
  stroke-width: 2.5 !important;
}
.node-name-text {
  font-size: 11px;
  font-weight: 600;
  fill: #f0f6fc;
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}
.node-f-text {
  font-size: 9px;
  fill: rgba(240,246,252,0.7);
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
}
.inbreed-path-edge {
  fill: none;
  stroke: var(--edge-inbreed);
  stroke-width: 2.5;
  stroke-dasharray: 5 3;
  opacity: 0.9;
  animation: dash-anim 1.2s linear infinite;
}
@keyframes dash-anim {
  to { stroke-dashoffset: -24; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #30363d; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }