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.mode-switch{max-width:780px;margin:0 auto 16px}.panel{border-radius:var(--radius)}.empty{text-align:center;padding:56px 16px;border:2px dashed var(--rule);border-radius:var(--radius)}.empty p{color:var(--ink-2);max-width:44ch;margin:8px auto 18px}.step-nav{display:flex;justify-content:space-between;gap:12px;margin:28px 0 8px;padding-top:18px;border-top:1px solid var(--rule)}.step-nav button{padding:12px 18px;font-weight:700}.demo-banner{border-left:4px solid var(--signal);background:var(--surface);border-top:none;border-right:none;border-bottom:none}.headline{border-left-width:6px;box-shadow:var(--lift)}.headline-value{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em}button.primary,a.button.primary{box-shadow:0 6px 16px -8px color-mix(in srgb,var(--accent) 80%,transparent)}@media (max-width: 760px){.setup-page{grid-template-columns:1fr}}@media print{.step-hidden{display:block!important}.setup-page{display:block}.step-page{animation:none}}.step-page .virtual-panel{max-width:none}.virtual-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:22px;align-items:start}.virtual-stage{position:sticky;top:64px}.scene{background-color:var(--sunken);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px;border:1px solid var(--rule);border-radius:var(--radius);padding:10px}.scene svg{max-height:300px}.virtual-controls .actions .primary{flex-basis:100%;padding:14px;font-size:1.05rem}@media (max-width: 760px){.virtual-grid{grid-template-columns:1fr}.virtual-stage{position:static}}.guide-btn{white-space:nowrap}@media (max-width: 480px){.topbar nav a:first-child{display:none}.topbar nav{gap:10px;align-items:center}.guide-btn{padding:5px 10px}}.param.slider{margin-top:10px}.footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;align-items:center}.footer nav{display:flex;flex-wrap:wrap;gap:18px}.footer a{color:var(--ink-2)}.footer a:hover{color:var(--ink)}body:has(.tutor-fab) .footer{padding-bottom:88px}.sensor-card{overflow:hidden;padding-top:0}.sensor-card .card-signal{margin:0 -22px 16px}