:root {
  --bg: #f6f4ef;
  --panel: #ffffff;
  --ink: #2a2723;
  --muted: #7a736a;
  --line: #ddd6cc;
  --accent: #6b8f5e;
  --shadow: 0 6px 24px rgba(40, 34, 26, .12);
  /* couleurs des 5 branches (fidèles au dessin) */
  --b1: #b23a6b; /* Martine — bordeaux/magenta */
  --b2: #7c4bbd; /* Jacotte — violet */
  --b3: #2f83c9; /* Jean-François — bleu */
  --b4: #e56aa0; /* Madeleine — rose */
  --b5: #e08a2e; /* Jean-Denis — orange */
  --b0: #4f7a43; /* racine — vert */
}
@media (prefers-color-scheme: dark) {
  :root { --bg:#1c1a17; --panel:#26231f; --ink:#efe9df; --muted:#a89f92; --line:#3a352e; --shadow:0 6px 24px rgba(0,0,0,.4); }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font: 15px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; color: var(--ink); background: var(--bg); }

/* ---------- Topbar ---------- */
.topbar { display: flex; align-items: center; gap: 18px; padding: 10px 18px; background: var(--panel);
  border-bottom: 1px solid var(--line); flex-wrap: wrap; position: sticky; top: 0; z-index: 20; }
.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; }
h1 { font-size: 18px; margin: 0; }
.sub { margin: 0; color: var(--muted); font-size: 12px; }
.tabs { display: flex; gap: 4px; background: var(--bg); border-radius: 999px; padding: 4px; }
.tab { border: 0; background: transparent; color: var(--muted); padding: 6px 16px; border-radius: 999px; cursor: pointer; font: inherit; }
.tab.is-active { background: var(--panel); color: var(--ink); box-shadow: var(--shadow); font-weight: 600; }
.tools { margin-left: auto; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
#search { padding: 7px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); min-width: 180px; }
.chk { color: var(--muted); font-size: 13px; display: flex; align-items: center; gap: 5px; }
.btn { border: 1px solid var(--line); background: var(--panel); color: var(--ink); padding: 7px 12px; border-radius: 8px; cursor: pointer; font: inherit; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.ghost { color: var(--muted); }
.btn.danger { color: #c0392b; border-color: #e3b4ad; }

/* ---------- Legend ---------- */
.legend { display: flex; gap: 14px; flex-wrap: wrap; padding: 8px 18px; background: var(--panel); border-bottom: 1px solid var(--line); font-size: 12px; }
.legend .item { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.legend .dot { width: 12px; height: 12px; border-radius: 3px; }

/* ---------- Views ---------- */
main { height: calc(100vh - 118px); }
.view { display: none; height: 100%; }
.view.is-active { display: block; }

/* Tree */
.tree-wrap { width: 100%; height: 100%; overflow: hidden; cursor: grab; background:
  radial-gradient(circle at 1px 1px, var(--line) 1px, transparent 0) 0 0 / 26px 26px; }
.tree-wrap:active { cursor: grabbing; }
.tree-hint { position: absolute; margin: 8px 18px; font-size: 12px; color: var(--muted); background: var(--panel);
  padding: 4px 10px; border-radius: 6px; box-shadow: var(--shadow); z-index: 5; }
svg text { user-select: none; }
.node-box { cursor: pointer; }
.node-box rect { transition: filter .15s; }
.node-box:hover rect { filter: brightness(1.05); }
.node-box.hit rect { stroke-width: 3px; }

/* Cards */
.cards-wrap { height: 100%; overflow: auto; padding: 18px; }
.branch { margin-bottom: 26px; }
.branch > h2 { font-size: 15px; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.branch > h2 .dot { width: 14px; height: 14px; border-radius: 4px; }
.fam { background: var(--panel); border: 1px solid var(--line); border-left-width: 5px; border-radius: 10px; margin: 0 0 10px; box-shadow: var(--shadow); overflow: hidden; }
.fam summary { list-style: none; cursor: pointer; padding: 10px 14px; display: flex; align-items: center; gap: 8px; font-weight: 600; }
.fam summary::-webkit-details-marker { display: none; }
.fam summary .caret { color: var(--muted); transition: transform .15s; }
.fam[open] summary .caret { transform: rotate(90deg); }
.fam .members { padding: 4px 14px 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--bg); cursor: pointer; font-size: 13px; }
.chip:hover { border-color: var(--accent); }
.chip.lin-Caron { border-left: 3px solid var(--b0); }
.chip.lin-conjoint { border-left: 3px solid var(--b3); }
.chip.uncertain { background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(224,138,46,.14) 6px, rgba(224,138,46,.14) 12px); }
.tag { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

/* Highlight recherche */
.dim { opacity: .28; }
.match rect, .chip.match { outline: 3px solid #e0a92e; }

/* ---------- Panel ---------- */
.scrim { position: fixed; inset: 0; background: rgba(0,0,0,.28); opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 30; }
.scrim.show { opacity: 1; pointer-events: auto; }
.panel { position: fixed; top: 0; right: 0; height: 100%; width: 360px; max-width: 92vw; background: var(--panel);
  box-shadow: var(--shadow); transform: translateX(100%); transition: transform .22s ease; z-index: 40; overflow-y: auto; }
.panel.show { transform: translateX(0); }
.panel-close { position: absolute; top: 10px; right: 12px; border: 0; background: transparent; font-size: 20px; cursor: pointer; color: var(--muted); }
#panelBody { padding: 22px 20px; }
#panelBody h2 { margin: 0 8px 2px 0; font-size: 20px; }
.field { margin: 14px 0; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.field input[type=text], .field textarea, .field select { width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
.field textarea { resize: vertical; min-height: 60px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; }
.row .btn { flex: 1; }
.meta-line { color: var(--muted); font-size: 12px; margin-bottom: 14px; }
.rel { font-size: 13px; }
.rel b { color: var(--muted); font-weight: 600; }

/* ---------- Toast ---------- */
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--ink); color: var(--bg);
  padding: 10px 18px; border-radius: 8px; opacity: 0; pointer-events: none; transition: all .25s; z-index: 60; font-size: 14px; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }