:root {
  color-scheme: dark;
  font-family: Inter, "Segoe UI", sans-serif;
  background: #081321;
  color: #edf7ff;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #9ce4ff; }
button, a { touch-action: manipulation; }
:focus-visible { outline: 3px solid #76e2ff; outline-offset: 3px; }
.skip { position: absolute; left: 1rem; top: -5rem; z-index: 1; padding: .8rem; background: #102238; }
.skip:focus { top: .5rem; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem max(1rem, calc((100% - 68rem) / 2));
  background: #102238;
  border-bottom: 1px solid #31506a;
}
.brand { color: #edf7ff; font-size: 1.4rem; font-weight: 750; text-decoration: none; }
nav { display: flex; gap: .35rem; }
nav a { display: grid; place-items: center; min-width: 44px; min-height: 44px; border-radius: .4rem; }
nav a[aria-current] { color: #edf7ff; background: #264661; font-weight: 700; text-decoration: none; }
main { max-width: 70rem; margin: auto; padding: 0 1rem 3rem; }
.intro { padding: clamp(2.4rem, 7vw, 5.5rem) 0 2.2rem; }
.eyebrow { color: #9ce4ff; font-weight: 650; }
h1 { font-size: clamp(2rem, 6vw, 3.9rem); line-height: 1.05; margin: .6rem 0 1rem; }
h2, h3 { margin: 0 0 .5rem; }
p { line-height: 1.55; color: #bfd4e6; margin: .4rem 0; }
.explorer { background: #102238; border: 1px solid #31506a; border-radius: .8rem; }
.explorer-heading, .controls, .info, .notice, #room-fallback { padding: 1rem; }
#room { display: block; width: 100%; height: clamp(280px, 48vw, 430px); touch-action: pan-y; background: #0b1a2b; }
.controls { display: flex; flex-wrap: wrap; gap: .5rem; padding-bottom: .65rem; }
[hidden] { display: none !important; }
button {
  min-height: 44px;
  padding: .5rem .75rem;
  font: inherit;
  background: #142f49;
  color: #edf7ff;
  border: 1px solid #5983a3;
  border-radius: .45rem;
  cursor: pointer;
}
button[aria-pressed="true"] { background: #1e5278; border-color: #82d7f3; }
.info { min-height: 7rem; }
.info small { display: block; margin-top: .8rem; color: #9ce4ff; }
.plans { padding-top: 2.6rem; }
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: .75rem; margin-top: 1rem; }
.plan-grid article { background: #102238; border: 1px solid #31506a; border-radius: .55rem; padding: 1rem; }

/* SiteAR 3.0 visual pass: responsive industrial control-room aesthetic. */
body { background: radial-gradient(ellipse 90% 35% at 50% 0%,#173650 0%,#081321 72%); min-height:100vh; }
.topbar { position:sticky; top:0; z-index:10; background:rgba(9,22,37,.94); backdrop-filter:blur(14px); }
.brand { letter-spacing:-.055em; font-size:1.7rem; }
.brand::before { content:"◈"; color:#62d9ee; margin-right:.45rem; }
.intro { position:relative; padding:clamp(3rem,8vw,7rem) 0 clamp(2rem,5vw,4rem); }
.intro::after { content:"SITE / INTELLIGENCE / 3.0"; display:block; margin-top:1.8rem; font-size:.7rem; letter-spacing:.28em; color:#6f9cb5; }
.intro h1 { max-width:16ch; font-weight:800; letter-spacing:-.055em; text-wrap:balance; }
.intro > p:not(.eyebrow) { max-width:55ch; font-size:clamp(1rem,2vw,1.22rem); }
.eyebrow { text-transform:uppercase; letter-spacing:.18em; font-size:.75rem; }
.explorer { overflow:hidden; border-radius:1.2rem; border-color:#35627a; box-shadow:0 25px 80px #0007,0 0 0 1px #7bd9ff12; }
.explorer-heading { display:flex; flex-wrap:wrap; justify-content:space-between; align-items:baseline; gap:.5rem 2rem; background:linear-gradient(100deg,#15344a,#102238); }
.explorer-heading h2 { font-size:clamp(1.35rem,3vw,2rem); letter-spacing:-.035em; }
#room3d, #room { min-height:310px; }
.controls { background:#0b1d2e; border-top:1px solid #31506a; }
.controls button { background:linear-gradient(#193d58,#102b43); transition:background .15s,border-color .15s,transform .15s; }
.controls button:hover { border-color:#8ce4f5; transform:translateY(-1px); }
.info { display:grid; gap:.5rem; background:linear-gradient(100deg,#112e42,#102238); border-top:1px solid #31506a; }
.info strong { font-size:1.2rem; }
.info small { letter-spacing:.025em; }
.plans { padding-top:clamp(2.5rem,6vw,4.5rem); }
.plans h2 { font-size:clamp(1.5rem,3vw,2.3rem); letter-spacing:-.04em; }
.plan-grid { gap:1rem; }
.plan-grid article { position:relative; overflow:hidden; min-height:165px; padding:1.5rem; border-radius:.9rem; background:linear-gradient(145deg,#16344a,#0d1d2d); }
.plan-grid article::before { content:""; position:absolute; top:0; left:0; width:45%; height:2px; background:#65d8e9; }
.plan-grid h3 { font-size:1.25rem; }
#billing, #account, #contact { border-top:1px solid #28475c; margin-top:3rem; }
@media(max-width:600px) {
 .topbar { padding:.8rem 1rem; }
 main { padding:0 .8rem 3rem; }
 .intro { padding-top:2.8rem; }
 .explorer-heading, .controls, .info { padding:.85rem; }
 .controls button { flex:1 1 auto; }
 .plan-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
 .plan-grid article { min-height:145px; padding:1rem; }
 .plan-grid h3 { font-size:1.05rem; }
}
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { transition:none!important; scroll-behavior:auto!important; } }