:root {
  --fg:#0b0d12; --bg:#ffffff; --muted:#5f6b7a; --brand:#0a84ff; --card:#f4f7fb;
  --dark-bg:#0b1220; --dark-fg:#e8eefc; --dark-card:#121a2c; --dark-muted:#92a0b4;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.55}
.dark{background:var(--dark-bg);color:var(--dark-fg)}
.wrap{max-width:1200px;margin:0 auto;padding:20px}
.site-header{border-bottom:1px solid rgba(0,0,0,.06);background:var(--card)}
.dark .site-header{background:var(--dark-card);border-color:rgba(255,255,255,.05)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;text-decoration:none;color:inherit;font-size:20px}
.accent{color:var(--brand)}
nav a{margin-left:16px;text-decoration:none;color:inherit;opacity:.85}
nav a.active{opacity:1;font-weight:600}
.hero{padding:28px 0}
.lead{color:var(--muted)}
.btn{display:inline-block;padding:10px 14px;border-radius:12px;background:var(--fg);color:#fff;text-decoration:none;font-weight:600}
.btn.secondary{background:#e9eef6;color:#233043}
.dark .btn.secondary{background:#1a2438;color:#dfe8fb}
.cta-row{display:flex;gap:10px;margin-top:12px}
.card{background:#fff;border:1px solid #e7ecf4;border-radius:16px;padding:16px;margin:16px 0}
.dark .card{background:var(--dark-card);border-color:rgba(255,255,255,.06)}
.bullets{margin:.5rem 0 0 1rem}
.muted{color:var(--muted)}
.dark .muted{color:var(--dark-muted)}
.site-footer{padding:18px;text-align:center;color:var(--muted);border-top:1px solid #e7ecf4;margin-top:20px}
.dark .site-footer{border-color:rgba(255,255,255,.06)}

.controls{display:flex;flex-direction:column;gap:10px;margin-bottom:10px}
.row{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;background:#eef6ff;color:#0a84ff;font-weight:600;font-size:12px}
.search{padding:10px 12px;border:1px solid #3a4a66;border-radius:10px;background:transparent;color:inherit;min-width:220px}
.toggle{display:flex;align-items:center;gap:6px;user-select:none;cursor:pointer}

.scale-canvas{
  position:relative; height:70vh; min-height:520px; overflow:hidden;
  border-radius:16px; background:radial-gradient(1000px 600px at 60% -20%, rgba(10,132,255,.15), transparent);
}
.dark .scale-canvas{background:radial-gradient(1000px 600px at 60% -20%, rgba(10,132,255,.2), transparent)}

.node{
  position:absolute; display:flex; align-items:center; gap:10px;
  padding:8px 10px; border:1px solid rgba(255,255,255,.12); border-radius:14px;
  background:rgba(12,18,32,.7); backdrop-filter: blur(6px); color:#e9f1ff;
  cursor:pointer; transition:transform .15s ease, box-shadow .15s ease;
}
.node:hover{transform:scale(1.04); box-shadow:0 6px 18px rgba(0,0,0,.25)}
.node img{width:36px;height:36px;border-radius:10px;object-fit:cover;background:#0f1830}
.node h4{margin:0;font-size:14px;font-weight:700}
.node .caption{font-size:12px;opacity:.85}

.info-panel{
  position:fixed; right:24px; bottom:24px; width:320px; max-width:90vw;
  background:rgba(16,24,40,.95); color:#e8f1ff; border:1px solid rgba(255,255,255,.08);
  border-radius:16px; padding:14px; box-shadow:0 12px 36px rgba(0,0,0,.35); z-index:20;
}
.hidden{display:none}
.info-panel img{width:100%;height:160px;object-fit:cover;border-radius:10px;background:#0f1830;margin-bottom:10px}
.info-panel h3{margin:6px 0 4px}
.info-panel .meta{display:grid;grid-template-columns:1fr 1fr;gap:6px;font-size:12px}
.icon-btn{
  position:absolute; top:6px; right:8px; background:transparent; border:0; color:#aab9d3; font-size:22px; cursor:pointer;
}
.dev-only{opacity:.85}