/* ── IFC VIEWER PANEL ── */
.ifc-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-bottom: 16px;
}
.ifc-header {
  padding: 14px 18px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
}
.ifc-header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.ifc-body { display: grid; grid-template-columns: 1fr 280px; height: 420px; }

.ifc-viewport { position: relative; background: #08090d; overflow: hidden; }
.ifc-viewport canvas { position: absolute; inset: 0; width: 100% !important; height: 100% !important; display: block; }

.ifc-dropzone {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background: #08090d; z-index: 10; transition: background 0.2s;
}
.ifc-dropzone.drag-over { background: rgba(79,142,247,0.06); }
.drop-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--accent-dim); border: 1px solid rgba(79,142,247,0.25);
  display: flex; align-items: center; justify-content: center; color: var(--accent);
}
.drop-title { font-size: 14px; font-weight: 600; color: var(--text-1); }
.drop-sub { font-size: 12px; color: var(--text-3); text-align: center; max-width: 220px; line-height: 1.5; }
.drop-hint { font-size: 11px; color: var(--text-3); font-family: var(--mono); margin-top: 4px; }

.ifc-loading {
  position: absolute; inset: 0; background: rgba(8,9,13,0.85);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; z-index: 20;
}
.ifc-loading-ring {
  width: 36px; height: 36px;
  border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ifc-loading-text { font-size: 13px; color: var(--text-2); font-family: var(--mono); }

.ifc-sidebar { border-left: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; background: var(--bg-surface); }
.ifc-sidebar-header { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 10.5px; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }
.ifc-props { flex: 1; overflow-y: auto; padding: 10px 14px; }
.ifc-props::-webkit-scrollbar { width: 4px; }
.ifc-props::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
.ifc-props-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; height: 120px; color: var(--text-3); font-size: 12px; text-align: center; line-height: 1.5; }

.prop-group { margin-bottom: 14px; }
.prop-group-label { font-size: 10px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); margin-bottom: 6px; padding-bottom: 5px; border-bottom: 1px solid var(--border); }
.prop-row { display: flex; align-items: flex-start; gap: 8px; padding: 4px 0; font-size: 12px; }
.prop-key { color: var(--text-3); min-width: 90px; flex-shrink: 0; line-height: 1.4; }
.prop-val { color: var(--text-1); font-family: var(--mono); font-size: 11px; word-break: break-all; line-height: 1.4; }
.prop-val.good { color: var(--green); }
.prop-val.warn { color: var(--amber); }
.prop-val.bad  { color: var(--red); }

.ifc-sensor-panel { padding: 12px 14px; border-top: 1px solid var(--border); flex-shrink: 0; }
.sensor-panel-label { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); margin-bottom: 8px; }
.sensor-chip { display: flex; align-items: center; gap: 8px; padding: 8px 10px; background: var(--accent-dim); border: 1px solid rgba(79,142,247,0.2); border-radius: 8px; margin-bottom: 8px; }
.sensor-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2s ease-in-out infinite; }
.sensor-chip-name { font-size: 12px; font-weight: 500; color: var(--accent); flex: 1; }
.sensor-chip-val  { font-size: 12px; font-family: var(--mono); color: var(--text-2); }
.sensor-readings { display: flex; flex-direction: column; gap: 4px; }
.sensor-row { display: flex; justify-content: space-between; font-size: 11.5px; padding: 3px 0; border-bottom: 1px solid rgba(37,40,54,0.4); }
.sensor-row:last-child { border-bottom: none; }
.s-label { color: var(--text-3); }
.s-val   { font-family: var(--mono); color: var(--text-2); }
.s-val.co2 { color: var(--amber); }