:root{--fg:#fff;--scrim:rgba(0,0,0,.45);--sheet:#141414}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#000;overflow:hidden;color:var(--fg);
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased}
#stage{position:fixed;inset:0;touch-action:none}
#stage canvas{display:block;cursor:grab}
.err{padding:2rem;text-align:center;opacity:.85}
#seo{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
#boot{position:absolute;inset:0;display:grid;place-items:center}
.spin{width:34px;height:34px;border:3px solid rgba(255,255,255,.22);border-top-color:#fff;
  border-radius:50%;animation:sp 0.9s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

.logo{position:absolute;top:max(16px,env(safe-area-inset-top));left:16px;z-index:30;
  max-height:54px;max-width:180px;pointer-events:none;filter:drop-shadow(0 2px 8px rgba(0,0,0,.6))}
.scene-label{position:absolute;top:22px;left:50%;transform:translateX(-50%);z-index:25;
  padding:7px 17px;border-radius:999px;background:var(--scrim);backdrop-filter:blur(10px);
  font-size:13.5px;opacity:0;transition:opacity .4s;pointer-events:none;
  max-width:62vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.scene-label.on{opacity:1}
.tip{position:fixed;z-index:40;transform:translate(-50%,-100%);padding:5px 10px;border-radius:6px;
  background:rgba(0,0,0,.82);font-size:12px;white-space:nowrap;pointer-events:none;opacity:0;
  transition:opacity .15s}
.tip.on{opacity:1}

.ribbon{position:absolute;left:0;right:0;bottom:0;z-index:25;display:flex;gap:9px;
  padding:14px 14px calc(14px + env(safe-area-inset-bottom));overflow-x:auto;scrollbar-width:none;
  background:linear-gradient(transparent,rgba(0,0,0,.66));transition:transform .3s}
.ribbon::-webkit-scrollbar{display:none}
.ribbon.tucked{transform:translateY(calc(100% - 12px))}
.ribbon.tucked:hover{transform:none}
.ribbon button{flex:0 0 auto;width:108px;height:64px;padding:0;position:relative;overflow:hidden;
  border:2px solid transparent;border-radius:8px;background:#1c1c1c center/cover no-repeat;
  cursor:pointer;opacity:.7;transition:opacity .2s,border-color .2s,transform .2s}
.ribbon button:hover{opacity:1;transform:translateY(-2px)}
.ribbon button.on{opacity:1;border-color:#fff}
.ribbon button span{position:absolute;left:0;right:0;bottom:0;padding:3px 6px;font-size:10px;
  color:#fff;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  background:linear-gradient(transparent,rgba(0,0,0,.85))}

.cta{position:absolute;right:16px;top:max(16px,env(safe-area-inset-top));z-index:30;
  padding:10px 20px;border:0;border-radius:999px;background:#fff;color:#111;
  font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 3px 14px rgba(0,0,0,.4)}
.cta:hover{transform:translateY(-1px)}
.watermark{position:absolute;right:16px;bottom:96px;z-index:25;font-size:11px;opacity:.55;
  color:#fff;text-decoration:none;text-shadow:0 1px 4px rgba(0,0,0,.8)}

.panel{position:fixed;inset:0;z-index:50;display:none;place-items:center;padding:20px;
  background:rgba(0,0,0,.62);backdrop-filter:blur(4px)}
.panel.on{display:grid}
.sheet{position:relative;max-width:min(760px,94vw);max-height:88vh;overflow:auto;
  background:var(--sheet);border-radius:14px;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.sheet img{max-width:100%;height:auto;border-radius:8px;display:block}
.sheet p{margin:12px 0 0;font-size:14.5px;opacity:.9}
.sheet .x{position:absolute;top:8px;right:10px;width:34px;height:34px;border:0;border-radius:50%;
  background:rgba(255,255,255,.12);color:#fff;font-size:22px;line-height:1;cursor:pointer}
.sheet .x:hover{background:rgba(255,255,255,.22)}
.sheet.video{width:auto;max-width:none;padding:46px 18px 18px}
.sheet.media{width:auto;max-width:min(860px,94vw)}
/* Sized ONLY in viewport units. Any % here depends on the parent, whose width
   depends on this box -- that circular reference collapses both to zero. */
.embed{position:relative;margin:0 auto;overflow:hidden;border-radius:9px;background:#000;
  width:min(900px, 88vw, calc(74vh * var(--ar,1.7778)));
  height:min(calc(900px / var(--ar,1.7778)), calc(88vw / var(--ar,1.7778)), 74vh);}
/* Descendant, not child -- CloudPano wraps some iframes in a div. */
.embed iframe,.embed video,.embed embed,.embed object{
  position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.embed>div{position:absolute;inset:0}
.sheet.note{width:min(420px,94vw);padding:40px 24px 26px;text-align:center}
.sheet.note h3{margin:0 0 8px;font-size:19px;font-weight:600}
.sheet.note p{margin:0;opacity:.82;font-size:15px}
.sheet.note .lead{font-size:18px;font-weight:500;opacity:1;line-height:1.45}
.form{width:min(420px,94vw)}
.form .lglogo{max-height:46px;width:auto;margin-bottom:14px}
.form input{width:100%;margin-top:10px;padding:12px 14px;border:1px solid rgba(255,255,255,.16);
  border-radius:9px;background:rgba(255,255,255,.05);color:#fff;font-size:15px}
.form input:focus{outline:2px solid rgba(255,255,255,.45);outline-offset:1px}
.form .send{width:100%;margin-top:16px;padding:13px;border:0;border-radius:9px;background:#fff;
  color:#111;font-size:15px;font-weight:600;cursor:pointer}
.form .note{min-height:20px;font-size:13px;opacity:.75}

.dbg{position:absolute;top:70px;left:14px;z-index:60;width:232px;padding:12px;border-radius:10px;
  background:rgba(12,12,12,.92);backdrop-filter:blur(8px);font-size:11px;line-height:1.3}
.dbg label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.dbg label span{opacity:.72}
.dbg button{min-width:64px;padding:3px 8px;border:1px solid rgba(255,255,255,.2);border-radius:5px;
  background:transparent;color:#fff;font-size:11px;cursor:pointer}
.dbg button.on{background:#2f7d4f;border-color:#2f7d4f}
.dbg input[type=range]{width:110px}
.dbgout{width:100%;height:88px;margin-top:6px;padding:6px;border:0;border-radius:6px;
  background:#000;color:#6fd18f;font:10px/1.35 ui-monospace,Menlo,monospace;resize:none}
.dbginfo{margin:6px 0 0;font-size:10px;opacity:.6}
@media (max-width:640px){
  .dbg{display:none}
  .ribbon button{width:86px;height:52px}
  .logo{max-height:38px;max-width:126px}
  .cta{padding:9px 16px;font-size:13px}
  .watermark{bottom:88px;font-size:10px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}