:root {
  --bg: #f6f5f2;
  --panel: #ffffff;
  --ink: #1c1b19;
  --ink-soft: #5a564e;
  --line: #e4e1da;
  --accent: #7a5cff;
  --accent-soft: #ede9ff;
  --node-fill: #ffffff;
  --node-stroke: #7a5cff;
  --edge-explicit: #7a5cff;
  --edge-semantic: #c9c3b8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16151a;
    --panel: #201f26;
    --ink: #f1efe9;
    --ink-soft: #a9a49a;
    --line: #35333c;
    --accent: #b7a6ff;
    --accent-soft: #2b2740;
    --node-fill: #201f26;
    --node-stroke: #b7a6ff;
    --edge-explicit: #b7a6ff;
    --edge-semantic: #454250;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); }
#app { display: flex; min-height: 100vh; }
.sidebar { width: 220px; flex: none; background: var(--panel); border-right: 1px solid var(--line); padding: 20px 14px; display: flex; flex-direction: column; gap: 4px; }
.brand { font-weight: 700; font-size: 1.05rem; margin-bottom: 16px; }
.nav-item { text-align: left; background: none; border: none; padding: 10px 12px; border-radius: 8px; color: var(--ink-soft); font-size: 0.95rem; cursor: pointer; }
.nav-item:hover { background: var(--accent-soft); color: var(--ink); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.agent-filter { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); }
.agent-filter label { display: block; font-size: 0.75rem; color: var(--ink-soft); margin-bottom: 6px; }
.agent-filter select { width: 100%; padding: 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--ink); }
main { flex: 1; padding: 28px 32px; overflow-y: auto; }
.view { display: none; }
.view.active { display: block; }
.view-header h1 { margin: 0 0 6px; font-size: 1.4rem; }
.view-header p { margin: 0 0 20px; color: var(--ink-soft); max-width: 640px; }
#graph-container { width: 100%; height: 70vh; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); overflow: hidden; }
#graph { width: 100%; height: 100%; cursor: grab; }
.node circle { fill: var(--node-fill); stroke: var(--node-stroke); stroke-width: 1.5px; }
.node text { fill: var(--ink); font-size: 10px; pointer-events: none; }
.node:hover circle { fill: var(--accent-soft); }
#search-input { width: 100%; max-width: 560px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); font-size: 1rem; }
.cards { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; max-width: 720px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; cursor: pointer; }
.card:hover { border-color: var(--accent); }
.card h3 { margin: 0 0 4px; font-size: 1rem; }
.card .meta { font-size: 0.78rem; color: var(--ink-soft); margin-bottom: 6px; }
.card p { margin: 0; color: var(--ink-soft); font-size: 0.9rem; }
.card.playbook { border-left: 3px solid var(--accent); }
.overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.4); display: flex; align-items: center; justify-content: center; z-index: 10; }
.overlay.hidden { display: none; }
.detail-panel { background: var(--panel); max-width: 720px; width: 92%; max-height: 82vh; overflow-y: auto; border-radius: 14px; padding: 28px; position: relative; }
.close-btn { position: absolute; top: 14px; right: 16px; background: none; border: none; font-size: 1.4rem; color: var(--ink-soft); cursor: pointer; }
.detail-panel h2 { margin-top: 0; }
.detail-panel .meta { color: var(--ink-soft); font-size: 0.85rem; margin-bottom: 16px; }
.detail-panel .body { white-space: pre-wrap; line-height: 1.55; font-size: 0.95rem; }
.ref-list { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.ref-list h4 { margin: 0 0 8px; font-size: 0.85rem; color: var(--ink-soft); }
.ref-chip { display: inline-block; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 4px 10px; font-size: 0.8rem; margin: 0 6px 6px 0; cursor: pointer; }

/* Versao mobile: a barra lateral fixa de 220px nao cabe em tela de
   celular, e o grafo de forca precisa de espaco proprio para dar pra
   arrastar com o dedo sem brigar com o resto da pagina. */
@media (max-width: 760px) {
  #app { flex-direction: column; min-height: 100dvh; }
  .sidebar {
    width: 100%; flex-direction: row; align-items: center; gap: 8px;
    padding: 10px 12px; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--line);
    -webkit-overflow-scrolling: touch;
  }
  .brand { margin-bottom: 0; margin-right: 4px; white-space: nowrap; font-size: 0.95rem; }
  .nav-item { white-space: nowrap; padding: 8px 10px; font-size: 0.88rem; }
  .agent-filter { margin-top: 0; padding-top: 0; border-top: none; margin-left: auto; min-width: 130px; }
  .agent-filter label { display: none; }
  main { padding: 16px; }
  .view-header h1 { font-size: 1.15rem; }
  .view-header p { font-size: 0.88rem; }
  #graph-container { height: 62dvh; }
  .detail-panel { width: 100%; max-height: 100dvh; height: 100dvh; border-radius: 0; padding: 20px 16px; }
  .overlay { padding: 0; }
  .cards { max-width: 100%; }
  #search-input { max-width: 100%; }
}