:root {
  --bg: #f6f3ee;
  --panel: #ffffff;
  --ink: #1c1a17;
  --muted: #6f6a63;
  --line: #e6dfd3;
  --accent: #3d5a4a;
  --accent-ink: #ffffff;
  --male: #b4c8dd;
  --female: #e4b8b8;
  --neutral: #d9d1c1;
  --danger: #b23a3a;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.05);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 14px;
  line-height: 1.4;
}

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 8px;
  transition: background 0.1s;
}
button:hover { background: #f0ebe1; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:hover { background: #2f4638; }
button.ghost { background: transparent; border-color: transparent; color: var(--muted); }
button.ghost:hover { background: rgba(0,0,0,0.05); color: var(--ink); }
button.danger { background: transparent; color: var(--danger); border-color: transparent; }
button.danger:hover { background: rgba(178,58,58,0.08); }
button.block { display: block; width: 100%; }
button.tiny { padding: 3px 8px; font-size: 12px; }

input, select, textarea {
  font: inherit;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 8px; }
label input, label select, label textarea { margin-top: 3px; color: var(--ink); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tiny { font-size: 12px; }
.muted { color: var(--muted); }
.error { color: var(--danger); margin: 8px 0 0; min-height: 1em; }

.screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  width: 100%; max-width: 360px;
  box-shadow: var(--shadow);
}
.card h1 { margin: 0 0 4px; font-size: 22px; }
.card p { margin: 0 0 16px; }
.card button { width: 100%; padding: 10px; margin-top: 8px; background: var(--accent); color: white; border-color: var(--accent); }

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  height: 52px;
}
.brand { font-weight: 600; font-size: 16px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.layout {
  display: grid;
  grid-template-columns: 280px 1fr auto;
  height: calc(100vh - 52px);
  overflow: hidden;
}

.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.side-block { padding: 12px; border-bottom: 1px solid var(--line); }
.side-block.grow { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.side-block.grow ul { flex: 1; overflow-y: auto; margin: 8px 0 0; padding: 0; list-style: none; }
.side-block .tiny { display: block; margin-bottom: 4px; }
.dir-row { display: flex; gap: 12px; margin-top: 8px; }
.dir-row label { font-size: 12px; color: var(--ink); margin: 0; display: inline-flex; align-items: center; gap: 4px; }

#person-list li {
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
}
#person-list li:hover { background: #f4efe4; }
#person-list li.active { background: var(--accent); color: var(--accent-ink); }
#person-list li.active .years { color: rgba(255,255,255,0.75); }
#person-list li .years { color: var(--muted); font-size: 11px; white-space: nowrap; }

.canvas-wrap { position: relative; overflow: hidden; }
.canvas-toolbar {
  position: absolute; top: 8px; left: 8px; right: 8px;
  display: flex; gap: 6px; align-items: center; flex-wrap: wrap;
  z-index: 5;
}
svg#tree { width: 100%; height: 100%; display: block; background: var(--bg); }

.pill {
  display: inline-flex; align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
  padding: 2px;
  gap: 2px;
}

.dir-btn {
  border: none; background: transparent; color: var(--muted);
  padding: 5px 12px; font-size: 12px; border-radius: 999px; cursor: pointer;
  white-space: nowrap;
}
.dir-btn:hover { background: rgba(0,0,0,0.05); color: var(--ink); }
.dir-btn.active { background: var(--accent); color: var(--accent-ink); }

.root-chip {
  border: 1px solid var(--line); background: var(--panel);
  padding: 4px 12px; gap: 6px; font: inherit; cursor: pointer;
  border-radius: 999px; color: var(--ink);
  max-width: 240px; overflow: hidden;
}
.root-chip #root-chip-name {
  font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.root-chip .chevron { font-size: 10px; color: var(--muted); }
.root-chip:hover { background: #f4efe4; }

.zoom-pill { margin-left: auto; }
.icon-btn {
  border: none; background: transparent; color: var(--ink);
  width: 30px; height: 28px; padding: 0; font-size: 16px; line-height: 1;
  border-radius: 999px; cursor: pointer; display: inline-flex;
  align-items: center; justify-content: center;
}
.icon-btn:hover { background: rgba(0,0,0,0.05); }

.add-btn {
  background: var(--accent); color: var(--accent-ink);
  border: 1px solid var(--accent); padding: 6px 14px;
  font-weight: 600; cursor: pointer; font-size: 13px;
}
.add-btn:hover { background: #2f4638; }

.empty-state {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; padding: 24px; text-align: center;
  pointer-events: none;
}
.empty-state p { margin: 0; }

.node rect {
  stroke: var(--ink);
  stroke-width: 1;
  rx: 6; ry: 6;
  cursor: pointer;
  transition: stroke-width 0.1s;
}
.node.selected rect { stroke-width: 2.5; stroke: var(--accent); }
.node text { font-family: inherit; pointer-events: none; }
.node .name { font-weight: 600; font-size: 12px; }
.node .years { font-size: 10px; fill: var(--muted); }
.link { fill: none; stroke: #c0b8a8; stroke-width: 1.5; }
.link.partner-link { stroke: var(--accent); stroke-width: 2; stroke-dasharray: 4 3; }

.detail {
  width: 320px;
  background: var(--panel);
  border-left: 1px solid var(--line);
  overflow-y: auto;
  padding: 12px 16px;
}
.detail-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.detail-head h2 { margin: 0; font-size: 18px; }
.detail-actions { display: flex; gap: 8px; margin-top: 12px; }
.rel-block { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.rel-block h3 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
.rel-list { list-style: none; padding: 0; margin: 0 0 8px; }
.rel-list li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 4px 8px; border-radius: 6px;
}
.rel-list li:hover { background: #f4efe4; }
.rel-list li .name-link { cursor: pointer; color: var(--ink); flex: 1; }
.rel-list li .name-link:hover { color: var(--accent); }
.rel-list li button { padding: 2px 6px; font-size: 11px; }
.rel-add { display: flex; gap: 6px; }
.rel-add input { flex: 1; }
.ac-wrap { position: relative; }
.ac-list {
  position: absolute; top: 100%; left: 0; right: 0;
  margin: 2px 0 0; padding: 0; list-style: none;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; max-height: 220px; overflow-y: auto;
  box-shadow: var(--shadow); z-index: 40;
}
.ac-list li {
  padding: 8px 10px; cursor: pointer;
  border-bottom: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
}
.ac-list li:last-child { border-bottom: none; }
.ac-list li:hover, .ac-list li.hi { background: #f4efe4; }
.ac-list li.create { color: var(--accent); font-weight: 500; }
.ac-list li .years { color: var(--muted); font-size: 11px; }

dialog {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  max-width: 480px;
  width: 90%;
  background: var(--panel);
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0,0,0,0.3); }
dialog h2 { margin: 0 0 12px; }
.log-head { display: flex; justify-content: space-between; align-items: center; }
#log-list { list-style: none; padding: 0; margin: 12px 0 0; max-height: 60vh; overflow-y: auto; }
#log-list li { padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 12px; }

/* Mobile: sidebar y detail como drawers superpuestos */
.mobile-toggle { display: none; }

@media (max-width: 900px) {
  .topbar { padding: 6px 8px; gap: 6px; height: 48px; }
  .topbar-right .muted { display: none; }
  .topbar-right { gap: 2px; }
  .brand { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex: 1; min-width: 0; }
  .topbar-right button { padding: 6px 8px; font-size: 12px; }

  .mobile-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 6px 10px; border: 1px solid var(--line); background: var(--panel);
    border-radius: 8px; font-size: 18px; line-height: 1;
  }

  .layout { grid-template-columns: 1fr; }
  .canvas-wrap { grid-column: 1; grid-row: 1; }
  .sidebar {
    position: absolute; top: 52px; left: 0; bottom: 0; z-index: 20;
    width: 88vw; max-width: 340px;
    transform: translateX(-100%); transition: transform 0.2s ease;
    box-shadow: 4px 0 20px rgba(0,0,0,0.15);
  }
  .sidebar.open { transform: translateX(0); }

  .detail {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: 92vw; max-width: 380px;
    border-left: 1px solid var(--line);
    transform: translateX(100%); transition: transform 0.2s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.15);
    z-index: 30; background: var(--panel);
  }
  .detail:not([hidden]) { transform: translateX(0); }

  .backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,0.35);
    z-index: 15; opacity: 0; pointer-events: none;
    transition: opacity 0.2s;
  }
  .backdrop.visible { opacity: 1; pointer-events: auto; }

  .canvas-toolbar { top: 6px; left: 6px; right: 6px; gap: 4px; }
  .dir-btn { padding: 6px 10px; font-size: 11px; }
  .root-chip { max-width: 160px; padding: 4px 10px; font-size: 12px; }
  .zoom-pill { margin-left: 0; }
  .add-btn { padding: 6px 12px; font-size: 12px; }

  .card { padding: 20px 16px; }
  button.tiny { padding: 6px 10px; font-size: 13px; }
  input, select, textarea { padding: 8px 10px; font-size: 16px; }
}