/* Access simulator: the diagram is illustrative, never a live device status. */
.smart-demo__shell{border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;background:var(--bg-2)}
.smart-demo [hidden]{display:none!important}.smart-demo__top{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid var(--line)}
.smart-demo__sim{display:flex;align-items:center;gap:.5rem;color:var(--fg-2);font-size:.78rem;line-height:1.5}.smart-demo__sim svg{width:1rem;height:1rem;flex:none}.smart-demo__reset,.smart-demo__end{background:none;border:0;color:var(--fg);font:inherit;font-size:.875rem;text-decoration:underline;text-underline-offset:4px;padding:.7rem;cursor:pointer;min-height:44px}
.smart-demo__tabs{display:flex;gap:.5rem;padding:1.5rem 1.5rem 0}.smart-demo__tabs button{flex:1;min-width:0;overflow-wrap:anywhere;max-width:10rem;min-height:46px;border:1px solid var(--line);border-radius:var(--radius-s);background:var(--bg);color:var(--fg-2);padding:.6rem .75rem;font:inherit;cursor:pointer}.smart-demo__tabs [aria-pressed=true]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.smart-demo__body{display:grid;grid-template-columns:1fr 1fr;align-items:center;min-height:360px;gap:2rem;padding:1.5rem 2.5rem 2rem}.smart-demo__scene{position:relative;color:var(--fg);max-width:430px;width:100%;margin:auto}.smart-demo__scene svg{display:block;width:100%;height:auto;overflow:visible}.smart-demo__ground{opacity:.2}.smart-demo__device,.smart-demo__signal-path{color:var(--accent)}.smart-demo__signal-path{opacity:.5}.smart-demo__scene-label{display:block;text-align:center;color:var(--fg-2);font-size:.85rem}.smart-demo__gate,.smart-demo__courier{display:none}.smart-demo[data-scene=gate] .smart-demo__door{display:none}.smart-demo[data-scene=gate] .smart-demo__gate{display:block}.smart-demo[data-scene=courier] .smart-demo__courier{display:block}.smart-demo[data-scene=courier] .smart-demo__door-leaf{opacity:.2}.smart-demo__door-leaf{fill:var(--bg-3);transform-origin:110px 150px;transition:transform .45s ease,fill .3s}.smart-demo[data-open=true] .smart-demo__door-leaf{transform:skewY(-9deg) scaleX(.58);fill:var(--bg)}.smart-demo__gate-leaf{transition:transform .5s ease;transform-origin:center}.smart-demo[data-open=true] .smart-demo__gate-leaf{transform:translateX(-48px) scaleX(.6)}.smart-demo__signal{opacity:0}.smart-demo[data-call=ringing] .smart-demo__signal,.smart-demo[data-call=answered] .smart-demo__signal{opacity:1;color:var(--accent)}
.smart-demo__control{padding:1.75rem;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-m);min-width:0}.smart-demo__step{font-size:.7rem;font-weight:600;letter-spacing:.08em;color:var(--fg-2)}.smart-demo__status{font-size:clamp(1.5rem,3vw,2rem);font-weight:650;line-height:1.16;margin:1rem 0}.smart-demo__hint{font-size:.95rem;color:var(--fg-2);line-height:1.55;min-height:4.4em}.smart-demo__actions{display:grid;gap:.75rem;margin-top:1.4rem}.smart-demo__actions .btn{white-space:normal;line-height:1.4;min-height:48px;text-align:center;width:100%}.smart-demo__actions button:disabled{opacity:.55;cursor:default}.smart-demo__advice{border-left:3px solid var(--accent);padding-left:1rem;margin-top:1rem;font-size:.95rem;line-height:1.5}.smart-demo__note{padding:0 2.5rem 1.5rem;font-size:.8rem;line-height:1.6;color:var(--fg-2);max-width:90ch}.smart-demo__cta{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;padding:1.5rem 0}.smart-demo__cta h3{font-size:1.2rem;line-height:1.4}.smart-demo__noscript{padding:1rem 1.5rem}.smart-demo button:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.smart-offer{padding:2rem 0;border-top:1px solid var(--line)}.smart-offer__links{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.5rem}.smart-offer__links a{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.2rem 0;border-bottom:1px solid var(--line);font-weight:600}.smart-offer__links svg{width:1.1rem;height:1.1rem;flex:none}
@media(max-width:700px){.smart-demo__top{padding:.85rem 1rem;align-items:flex-start}.smart-demo__sim{max-width:23ch}.smart-demo__reset{flex:none}.smart-demo__tabs{padding:1rem 1rem 0;gap:.4rem}.smart-demo__tabs button{padding:.6rem .25rem;font-size:.9rem}.smart-demo__body{grid-template-columns:1fr;padding:.8rem 1rem 1.3rem;gap:1rem}.smart-demo__scene{max-width:240px}.smart-demo__control{padding:1.2rem}.smart-demo__hint{min-height:0}.smart-demo__note{padding:0 1.2rem 1.3rem}.smart-demo__cta{align-items:flex-start;flex-direction:column}.smart-demo__cta .btn{white-space:normal}.smart-offer__links{grid-template-columns:1fr;gap:0}}
@media(prefers-reduced-motion:reduce){.smart-demo *, .smart-demo *::before,.smart-demo *::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}