*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0c0c0a;
  --surface:#131311;
  --surface-2:#191917;
  --surface-3:#1f1f1c;
  --border:rgba(255,255,255,0.07);
  --text:#c8c7c4;
  --text-muted:#6b6a68;
  --text-faint:#3a3937;
  --primary:#4f98a3;
  --primary-dim:#1d4a50;
  --gold:#e8af34;
  --orange:#fdab43;
  --blue:#5591c7;
  --panel-w:270px;
  --font:'Satoshi',system-ui,sans-serif;
}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:var(--font);font-size:13px}

.app{display:flex;height:100vh}
.canvas-wrap{flex:1;position:relative;overflow:hidden}
#canvas{display:block;width:100%;height:100%;cursor:crosshair}

/* === PANEL === */
.panel{
  width:var(--panel-w);
  background:var(--surface);
  border-left:1px solid var(--border);
  display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;
  scrollbar-width:thin;scrollbar-color:var(--border) transparent;
  z-index:10;flex-shrink:0;
}
.panel::-webkit-scrollbar{width:4px}
.panel::-webkit-scrollbar-track{background:transparent}
.panel::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}

.panel-header{
  padding:14px 16px 12px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;
  position:sticky;top:0;background:var(--surface);z-index:2;
}
.panel-logo{width:26px;height:26px;flex-shrink:0}
.panel-title{font-size:14px;font-weight:700;letter-spacing:-0.02em;line-height:1.2}
.panel-sub{font-size:10px;color:var(--text-muted);margin-top:1px}

.section{padding:14px 16px;border-bottom:1px solid var(--border)}
.sec-title{
  font-size:9.5px;font-weight:600;letter-spacing:0.1em;
  text-transform:uppercase;color:var(--text-muted);margin-bottom:10px;
}

/* stats */
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.stat-card{
  background:var(--surface-2);border:1px solid var(--border);
  border-radius:7px;padding:8px 10px;
}
.stat-val{font-size:19px;font-weight:700;color:var(--primary);line-height:1;font-variant-numeric:tabular-nums}
.stat-lbl{font-size:9.5px;color:var(--text-muted);margin-top:2px}

.energy-wrap{margin-top:10px}
.energy-row{display:flex;justify-content:space-between;font-size:10px;color:var(--text-muted);margin-bottom:4px}
.energy-bar{height:3px;background:var(--surface-3);border-radius:2px;overflow:hidden}
.energy-fill{
  height:100%;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--gold));
  transition:width 0.15s;
}

/* buttons */
.btn{
  display:flex;align-items:center;justify-content:center;gap:5px;
  padding:7px 10px;border-radius:6px;border:1px solid var(--border);
  background:var(--surface-2);color:var(--text);
  font-family:var(--font);font-size:11.5px;font-weight:500;
  cursor:pointer;transition:background 140ms,border-color 140ms,color 140ms;
  width:100%;margin-bottom:5px;
}
.btn:hover{background:rgba(79,152,163,0.12);border-color:var(--primary);color:var(--primary)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#0c0c0a;font-weight:600}
.btn-primary:hover{background:#5aadb9;border-color:#5aadb9;color:#0c0c0a}
.btn-danger:hover{background:rgba(253,171,67,0.12);border-color:var(--orange);color:var(--orange)}
.btn-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px;margin-bottom:5px}
.btn-grid .btn{margin-bottom:0}

/* sliders */
.sl-group{margin-bottom:10px}
.sl-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:5px}
.sl-lbl{font-size:11px;color:var(--text-muted)}
.sl-val{font-size:10.5px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;min-width:40px;text-align:right}
input[type=range]{
  -webkit-appearance:none;width:100%;height:3px;border-radius:2px;
  background:var(--surface-3);outline:none;border:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:13px;height:13px;border-radius:50%;
  background:var(--primary);cursor:pointer;border:2px solid var(--bg);
  transition:transform 120ms;
}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.25)}

/* legend */
.legend{display:flex;flex-direction:column;gap:5px}
.leg-item{display:flex;align-items:center;gap:8px;font-size:10.5px;color:var(--text-muted)}
.leg-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}

/* HUD */
.hud{position:absolute;top:14px;left:14px;display:flex;gap:7px;z-index:5}
.hud-btn{
  width:34px;height:34px;border-radius:8px;
  background:rgba(19,19,17,0.85);border:1px solid var(--border);
  color:var(--text);display:flex;align-items:center;justify-content:center;
  cursor:pointer;backdrop-filter:blur(8px);transition:all 140ms;font-size:13px;
}
.hud-btn:hover{background:rgba(79,152,163,0.18);border-color:var(--primary);color:var(--primary)}
.hud-btn.active{background:var(--primary);color:#0c0c0a;border-color:var(--primary)}

/* info badge */
.info-badge{
  position:absolute;bottom:14px;left:14px;
  background:rgba(19,19,17,0.85);border:1px solid var(--border);
  border-radius:8px;padding:7px 11px;backdrop-filter:blur(8px);
  font-size:10px;color:var(--text-muted);line-height:1.7;
}

/* tooltip */
.tooltip{
  position:absolute;pointer-events:none;
  background:rgba(19,19,17,0.95);border:1px solid var(--border);
  border-radius:8px;padding:8px 11px;backdrop-filter:blur(8px);
  display:none;z-index:20;max-width:200px;
}
.tooltip.on{display:block}
.tt-name{font-size:12px;font-weight:600;color:var(--text);margin-bottom:3px}
.tt-meta{font-size:10px;color:var(--text-muted)}
.tt-neighbors{font-size:10px;color:var(--text-faint);margin-top:2px}