/* ─── NETWORK TOPOLOGY BUILDER ─── */
.nt-page{background:#060D1A;min-height:100vh;padding-top:66px;display:flex;flex-direction:column;}

/* ─── TOOLBAR ─── */
.nt-toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:#0B1628;border-bottom:1px solid #1E2536;flex-wrap:wrap;gap:10px;}
.nt-toolbar-left{display:flex;flex-direction:column;gap:2px;}
.nt-toolbar-title{font-size:.9375rem;font-weight:700;color:#E8ECF2;}
.nt-toolbar-sub{font-size:.72rem;color:#4B5563;}
.nt-toolbar-right{display:flex;gap:8px;}
.nt-tb-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:8px;font-size:.78rem;font-weight:600;
  background:#131825;border:1px solid #1E2536;color:#8B95A8;
  cursor:pointer;transition:all .15s;font-family:inherit;
}
.nt-tb-btn:hover{background:#1E2536;color:#E8ECF2;}
.nt-tb-primary{background:#3B82F6;border-color:#3B82F6;color:#fff;}
.nt-tb-primary:hover{background:#2563EB;}

/* ─── MAIN LAYOUT ─── */
.nt-main{display:grid;grid-template-columns:200px 1fr;flex:1;position:relative;}

/* ─── PALETTE ─── */
.nt-palette{background:#0B1628;border-right:1px solid #1E2536;padding:16px;overflow-y:auto;}
.nt-pal-title{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:#4B5563;margin-bottom:10px;}
.nt-pal-item{
  display:flex;align-items:center;gap:10px;padding:10px;
  border-radius:8px;cursor:grab;transition:all .15s;
  font-size:.8rem;font-weight:500;color:#8B95A8;
  border:1px solid transparent;margin-bottom:4px;
}
.nt-pal-item:hover{background:#131825;border-color:#1E2536;color:#E8ECF2;}
.nt-pal-item:active{cursor:grabbing;}
.nt-pal-icon{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.nt-pal-divider{height:1px;background:#1E2536;margin:14px 0;}
.nt-pal-help{display:flex;flex-direction:column;gap:8px;font-size:.72rem;color:#4B5563;line-height:1.6;}

/* ─── CANVAS ─── */
.nt-canvas-wrap{position:relative;overflow:hidden;min-height:calc(100vh - 118px);}
#nt-canvas{position:absolute;inset:0;width:100%;height:100%;}
.nt-nodes{position:absolute;inset:0;pointer-events:none;}
.nt-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#4B5563;font-size:.875rem;gap:12px;pointer-events:none;}

/* ─── NODES ON CANVAS ─── */
.nt-node{
  position:absolute;pointer-events:auto;cursor:move;
  width:80px;text-align:center;user-select:none;
  transition:filter .2s;
}
.nt-node:hover{filter:brightness(1.2);}
.nt-node.selected{filter:brightness(1.3);}
.nt-node.selected .nt-node-icon{box-shadow:0 0 0 3px rgba(59,130,246,.5);}
.nt-node-icon{
  width:48px;height:48px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 6px;border:1px solid #1E2536;
  transition:box-shadow .2s;
}
.nt-node-label{font-size:.68rem;font-weight:600;color:#8B95A8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nt-node-ping{
  position:absolute;top:-4px;right:12px;width:10px;height:10px;
  border-radius:50%;background:#10B981;border:2px solid #060D1A;
}

/* ─── ANALYSIS PANEL ─── */
.nt-analysis{
  position:absolute;top:0;right:0;bottom:0;width:340px;
  background:#0B1628;border-left:1px solid #1E2536;
  overflow-y:auto;z-index:10;animation:slide-in .3s ease;
}
@keyframes slide-in{from{transform:translateX(100%)}to{transform:translateX(0)}}
.nt-analysis-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #1E2536;}
.nt-analysis-title{font-size:.84rem;font-weight:700;color:#E8ECF2;}
.nt-analysis-close{background:none;border:none;color:#4B5563;font-size:1.2rem;cursor:pointer;padding:4px;}
.nt-analysis-close:hover{color:#E8ECF2;}
.nt-analysis-body{padding:20px;}

/* Analysis cards */
.nt-a-card{background:#131825;border:1px solid #1E2536;border-radius:10px;padding:16px;margin-bottom:12px;}
.nt-a-label{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px;}
.nt-a-label.green{color:#10B981;}.nt-a-label.amber{color:#F59E0B;}.nt-a-label.red{color:#EF4444;}.nt-a-label.blue{color:#3B82F6;}
.nt-a-text{font-size:.8125rem;color:#8B95A8;line-height:1.7;}
.nt-a-score{font-family:'DM Serif Display',serif;font-size:2rem;color:#E8ECF2;margin-bottom:4px;}
.nt-a-score-label{font-size:.72rem;color:#4B5563;}
.nt-a-item{display:flex;align-items:flex-start;gap:8px;font-size:.8rem;color:#C1C8D6;margin-bottom:8px;}
.nt-a-item:last-child{margin-bottom:0;}
.nt-a-bullet{color:#3B82F6;font-weight:700;flex-shrink:0;}

@media(max-width:768px){
  .nt-main{grid-template-columns:1fr;}
  .nt-palette{display:flex;overflow-x:auto;border-right:none;border-bottom:1px solid #1E2536;padding:10px;gap:8px;-webkit-overflow-scrolling:touch;}
  .nt-pal-title,.nt-pal-divider,.nt-pal-help{display:none;}
  .nt-pal-item{flex-direction:column;min-width:70px;font-size:.68rem;padding:8px;margin:0;flex-shrink:0;}
  .nt-analysis{width:100%;position:relative;animation:none;}
  .nt-toolbar{padding:10px 16px;}
  .nt-toolbar-right{flex-wrap:wrap;}
  .nt-tb-btn{padding:7px 12px;font-size:.72rem;}
  .nt-canvas-wrap{min-height:calc(100vh - 200px);}
}
@media(max-width:480px){
  .nt-toolbar{flex-direction:column;align-items:flex-start;}
  .nt-toolbar-right{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .nt-pal-item{min-width:60px;font-size:.62rem;}
  .nt-pal-icon{width:30px;height:30px;font-size:.8rem;}
  .nt-node{width:64px;}
  .nt-node-icon{width:40px;height:40px;border-radius:10px;}
  .nt-node-label{font-size:.6rem;}
  .nt-analysis-body{padding:16px;}
  .nt-a-card{padding:14px;}
}