body.demo-page{
  min-height:100vh;
}

.demo-shell{
  max-width:1320px;
  margin:0 auto;
  padding:30px 20px 48px;
}

.demo-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:20px;
  margin-bottom:22px;
}

.demo-kicker{
  display:inline-flex;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(102,226,255,.16);
  color:var(--accent-2);
  font-size:.8rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
}

.demo-title{
  margin:14px 0 10px;
  font-size:clamp(2rem,4vw,3.4rem);
  letter-spacing:-.04em;
  line-height:1;
}

.demo-subtitle{
  margin:0;
  max-width:58rem;
  color:var(--muted-strong);
  line-height:1.7;
}

.demo-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}

.demo-topbar{
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);
  gap:18px;
  margin-bottom:18px;
}

.demo-info-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
}

.demo-metric{
  padding:16px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(132,156,187,.12);
}

.demo-metric strong{
  display:block;
  margin-bottom:8px;
  font-size:1rem;
}

.demo-metric span{
  display:block;
  color:var(--muted);
  font-size:.9rem;
  line-height:1.55;
}

.demo-status-card{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.demo-status-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}

.demo-status-label{
  font-size:.88rem;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.14em;
}

.demo-status-pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:11px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(132,156,187,.12);
  color:#f8fbff;
}

.demo-status-dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background:#f59e0b;
  box-shadow:0 0 12px rgba(245,158,11,.5);
}

.demo-status-pill.ok .demo-status-dot{
  background:#12c884;
  box-shadow:0 0 12px rgba(18,200,132,.45);
}

.demo-status-pill.err .demo-status-dot{
  background:#f87171;
  box-shadow:0 0 12px rgba(248,113,113,.45);
}

.demo-status-note{
  margin:0;
  color:var(--muted);
  line-height:1.65;
}

.demo-panel-wrap{
  padding:16px;
}

.demo-panel-frame{
  min-height:420px;
}

.panel-card{
  overflow:hidden;
  border-radius:26px;
  background:rgba(19,26,36,.96);
  border:1px solid rgba(255,255,255,0.06);
  box-shadow:0 20px 48px rgba(0,0,0,0.38);
}

.panel-wrap{
  background:
    radial-gradient(circle at 13% 10%, rgba(255,195,94,0.08), transparent 18%),
    linear-gradient(180deg, #0a1018 0%, #111a25 100%);
}

.panel-svg{
  width:100%;
  height:auto;
  display:block;
  aspect-ratio:1440 / 860;
}

.demo-panel-frame .title { font-size: 28px; font-weight: 700; fill: #edf4ff; }
.demo-panel-frame .subtitle { font-size: 13px; fill: #90a4b8; }
.demo-panel-frame .label { font-size: 14px; font-weight: 600; fill: #dbe7f4; }
.demo-panel-frame .small { font-size: 11px; fill: #90a4b8; }
.demo-panel-frame .tiny { font-size: 10px; fill: #e6be8a; }
.demo-panel-frame .pipe { fill: none; stroke: rgba(86,102,123,0.55); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; }
.demo-panel-frame .flow { fill: none; stroke-width: 4; stroke-linecap: round; stroke-dasharray: 12 12; opacity: 0; }
.demo-panel-frame .flow.active { opacity: 1; animation: flowDash 1.2s linear infinite; }
.demo-panel-frame .power { stroke: #ffd34a; }
.demo-panel-frame .heat { stroke: #ff9566; }
.demo-panel-frame .box { fill: rgba(255,255,255,0.035); stroke: rgba(255,255,255,0.12); stroke-width: 2; }
.demo-panel-frame .box-on { fill: rgba(84,214,145,0.12); stroke: rgba(84,214,145,0.82); }
.demo-panel-frame .box-warm { fill: rgba(255,160,89,0.12); stroke: rgba(255,173,96,0.82); }
.demo-panel-frame .sun-ray-spin { transform-box: fill-box; transform-origin: center; animation: sunSpin 14s linear infinite; }
.demo-panel-frame .sun-core-pulse { animation: sunPulse 2.2s ease-in-out infinite; }
.demo-panel-frame .rotor-blades { transform-box: fill-box; transform-origin: center; }
.demo-panel-frame .rotor-blades.rotor-active { animation: rotorSpin var(--rotor-dur, 1.6s) linear infinite; will-change: transform; }
.demo-panel-frame .boiler-flame { transform-box: fill-box; transform-origin: center bottom; }
.demo-panel-frame .boiler-flame.boiler-flame-active { animation: boilerFlicker 1.4s ease-in-out infinite; will-change: transform, opacity; }

@keyframes flowDash { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -48; } }
@keyframes sunSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes sunPulse { 0% { transform: scale(1); } 50% { transform: scale(1.08); } 100% { transform: scale(1); } }
@keyframes rotorSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes boilerFlicker {
  0% { transform: translateY(0) scale(1, 1); opacity: .92; }
  25% { transform: translateY(-1px) scale(.96, 1.08); opacity: 1; }
  50% { transform: translateY(-2px) scale(1.04, .94); opacity: .88; }
  75% { transform: translateY(-1px) scale(.98, 1.05); opacity: 1; }
  100% { transform: translateY(0) scale(1, 1); opacity: .92; }
}

@media (max-width: 980px){
  .demo-topbar{
    grid-template-columns:1fr;
  }

  .demo-info-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .demo-shell{
    padding-inline:16px;
  }

  .demo-head{
    flex-direction:column;
  }

  .demo-actions{
    width:100%;
  }

  .demo-actions .btn-primary,
  .demo-actions .btn-ghost{
    width:100%;
  }

  .demo-panel-wrap{
    padding:10px;
  }
}