:root{ color-scheme:dark }
*{box-sizing:border-box}
html,body{height:100%;margin:0;overflow:hidden;background:#0d0f12}
body{font:13px/1.4 "Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,sans-serif;color:#e6e9ef}
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;cursor:default;touch-action:none}

#bar{
  position:fixed;top:12px;left:12px;display:flex;align-items:center;gap:6px;z-index:22;
  background:rgba(20,23,28,.82);border:1px solid #2e3540;border-radius:8px;padding:6px;
  backdrop-filter:blur(6px);
}
#bar button{
  font:inherit;color:#e6e9ef;background:#22262e;border:1px solid #2e3540;border-radius:6px;
  padding:5px 11px;cursor:pointer;
}
#bar button:hover{background:#2b313b}
#bar button.on{background:#4da3ff;border-color:#4da3ff;color:#06121f;font-weight:600}
.sep{width:1px;height:20px;background:#2e3540;margin:0 3px}

#hud{
  position:fixed;left:12px;bottom:12px;pointer-events:none;white-space:pre;
  background:rgba(20,23,28,.82);border:1px solid #2e3540;border-radius:8px;padding:7px 10px;
  font-family:ui-monospace,Consolas,monospace;font-size:12px;backdrop-filter:blur(6px);
}
#help{
  position:fixed;right:12px;bottom:12px;pointer-events:none;color:#9aa4b2;
  background:rgba(20,23,28,.7);border:1px solid #2e3540;border-radius:8px;padding:7px 10px;
  font-size:12px;backdrop-filter:blur(6px);
}
#load{
  position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:#0d0f12;color:#9aa4b2;font-size:14px;transition:opacity .25s;
}
#load.gone{opacity:0;pointer-events:none}

/* ------------------------------------------------------------------ pins */
#pins{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:5}
.pin{position:absolute;left:0;top:0;width:0;height:0;will-change:transform}
.pin-dot{position:absolute;left:-6px;top:-6px;width:12px;height:12px;border-radius:50%;
  background:#4da3ff;border:2px solid #0d0f12;box-shadow:0 0 0 1px #4da3ff88,0 2px 6px #0008;pointer-events:auto;cursor:pointer}
.pin-stem{position:absolute;left:-1px;width:2px;background:linear-gradient(#4da3ffcc,#4da3ff33)}
.pin-card{position:absolute;pointer-events:auto;background:rgba(20,23,28,.92);border:1px solid #2e3540;border-radius:10px;
  box-shadow:0 8px 24px #0009;backdrop-filter:blur(8px);white-space:nowrap}
.pin-kicker{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#7f8a99}
.pin-title{font-size:14px;font-weight:600;color:#f1f4f8}
.pin-en{font-weight:400;color:#9aa4b2;font-size:12px}
.pin-sub{font-size:12px;color:#9aa4b2;margin-top:1px}
.pin-act{margin-top:8px;width:100%;font:inherit;font-weight:600;color:#06121f;background:#4da3ff;border:1px solid #4da3ff;border-radius:7px;
  padding:6px 12px;cursor:pointer;transition:background .15s}
.pin-act:hover{background:#74b8ff}
.pin-act:focus-visible,.room-chip:focus-visible,.rc-close:focus-visible{outline:2px solid #fff;outline-offset:2px}

/* building */
.pin-building .pin-stem{top:-46px;height:40px}
.pin-building .pin-card{bottom:46px;left:0;transform:translateX(-50%);padding:10px 12px 10px;min-width:176px;text-align:left}
.pin-building.open .pin-act,.pin-floor.open .pin-act{background:#2b313b;color:#e6e9ef;border-color:#3a4250}
.pin-building.open .pin-act:hover,.pin-floor.open .pin-act:hover{background:#343b47}
.pin-building .pin-dot{width:16px;height:16px;left:-8px;top:-8px}

/* floors: child pins hanging below the building's point */
.pin-floor .pin-link{position:absolute;left:-1px;top:8px;width:2px;height:calc(18px + var(--i) * 104px);
  background:repeating-linear-gradient(#4da3ff99 0 4px,transparent 4px 8px)}
.pin-floor .pin-card{top:calc(26px + var(--i) * 104px);left:0;transform:translateX(-50%);padding:9px 12px 10px;min-width:176px;
  animation:floorIn .22s ease-out both}
.pin-floor .pin-card::before{content:"";position:absolute;left:50%;top:-5px;width:8px;height:8px;margin-left:-4px;background:rgba(20,23,28,.92);
  border-left:1px solid #2e3540;border-top:1px solid #2e3540;transform:rotate(45deg)}

/* rooms */
.pin-room .pin-dot{width:9px;height:9px;left:-4.5px;top:-4.5px;background:#ffb547;box-shadow:0 0 0 1px #ffb54788,0 1px 4px #000a;border-width:1.5px}
.pin-room .pin-stem{top:-12px;height:8px;background:#ffb547aa}
.room-chip{position:absolute;bottom:12px;left:0;transform:translateX(-50%);pointer-events:auto;display:flex;align-items:center;gap:6px;
  font:inherit;font-size:12px;color:#e9edf3;background:rgba(20,23,28,.9);border:1px solid #3a4250;border-radius:999px;
  padding:2px 9px 2px 3px;cursor:pointer;white-space:nowrap;box-shadow:0 3px 10px #0008;animation:chipIn .2s ease-out both}
.room-chip:hover{border-color:#ffb547;background:rgba(32,35,41,.95)}
.room-nr{display:inline-grid;place-items:center;min-width:19px;height:19px;padding:0 4px;border-radius:999px;background:#ffb547;color:#1b1204;
  font-weight:700;font-size:11px;font-variant-numeric:tabular-nums}
.pin-room.compact .room-nm{display:none}
.pin-room.compact .room-chip{padding:2px 3px}
.pin-room.dot .room-chip,.pin-room.dot .pin-stem{display:none}
.pin-room.hidden{visibility:hidden}
.pin-room.selected{z-index:3}
.pin-room.selected .room-chip{display:none}
.pin-room.selected .pin-dot{width:13px;height:13px;left:-6.5px;top:-6.5px;box-shadow:0 0 0 4px #ffb54733,0 0 14px #ffb547aa}
.pin-room.selected .pin-stem{top:-18px;height:14px}
.room-card{display:none}
.pin-room.selected .room-card{display:block;position:absolute;left:0;top:0;width:292px;pointer-events:auto;
  background:rgba(18,21,26,.95);border:1px solid #3a4250;border-top:3px solid #ffb547;border-radius:12px;box-shadow:0 14px 36px #000b;
  backdrop-filter:blur(10px);padding:12px 14px 11px;animation:cardIn .28s cubic-bezier(.2,.8,.2,1) both;white-space:normal}
.room-leader{display:none;position:absolute;left:0;top:-1px;height:2px;transform-origin:0 50%;pointer-events:none;
  background:linear-gradient(90deg,#ffb547,#ffb54799)}
.pin-room.selected .room-leader{display:block}
.rc-head{display:flex;align-items:flex-start;gap:10px}
.rc-nr{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#ffb547;color:#1b1204;font-weight:700;font-size:15px}
.rc-names{flex:1;min-width:0}
.rc-title{font-size:16px;font-weight:650;color:#f4f6f9;line-height:1.2}
.rc-en{font-size:12px;color:#9aa4b2;margin-top:2px}
.rc-close{flex:none;font:inherit;font-size:18px;line-height:1;width:28px;height:28px;border-radius:7px;border:1px solid transparent;background:transparent;
  color:#9aa4b2;cursor:pointer}
.rc-close:hover{background:#2b313b;color:#fff}
.rc-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px 14px;margin:12px 0 0}
.rc-grid div{min-width:0}
.rc-grid dt{font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:#7f8a99}
.rc-grid dd{margin:1px 0 0;font-size:13.5px;color:#eef1f5;font-variant-numeric:tabular-nums}
.rc-na{color:#8b95a3;font-size:12px}
.rc-grid div:first-child dd{font-size:18px;font-weight:650;color:#ffcf86}
.rc-foot{margin-top:11px;padding-top:8px;border-top:1px solid #2a3039;font-size:11px;color:#6f7a89}
@keyframes floorIn{from{opacity:0;margin-top:-6px}to{opacity:1;margin-top:0}}
@keyframes chipIn{from{opacity:0;margin-bottom:-4px}to{opacity:1;margin-bottom:0}}
@keyframes cardIn{from{opacity:0;scale:.94}to{opacity:1;scale:1}}
@media (prefers-reduced-motion:reduce){.room-chip,.pin-floor .pin-card,.pin-room.selected .room-card{animation:none}}

/* ------------------------------------------------------------------ search */
#search{position:fixed;top:12px;right:12px;width:min(360px,calc(100vw - 24px));z-index:20}
#search[hidden]{display:none}
.search-box{display:flex;align-items:center;gap:8px;background:rgba(20,23,28,.9);border:1px solid #2e3540;border-radius:10px;padding:0 8px 0 10px;
  height:40px;backdrop-filter:blur(8px);box-shadow:0 6px 20px #0007;transition:border-color .15s}
#search.open .search-box,.search-box:focus-within{border-color:#4da3ff}
.search-box svg{flex:none;color:#7f8a99}
#search-input{flex:1;min-width:0;font:inherit;font-size:14px;color:#eef1f5;background:transparent;border:0;outline:0;height:100%}
#search-input::placeholder{color:#6f7a89}
#search-clear{flex:none;font:inherit;font-size:16px;width:24px;height:24px;border-radius:6px;border:0;background:transparent;color:#7f8a99;cursor:pointer;display:none}
#search-input:not(:placeholder-shown) ~ #search-clear{display:block}
#search-clear:hover{background:#2b313b;color:#fff}
.search-box kbd{flex:none;font:11px ui-monospace,Consolas,monospace;color:#7f8a99;border:1px solid #3a4250;border-radius:5px;padding:1px 6px}
#search-input:focus ~ kbd,#search-input:not(:placeholder-shown) ~ kbd{display:none}
#search-sugg{display:none;margin-top:6px;max-height:min(440px,calc(100vh - 90px));overflow:auto;background:rgba(18,21,26,.96);border:1px solid #2e3540;
  border-radius:10px;box-shadow:0 14px 36px #000b;backdrop-filter:blur(10px);padding:4px}
#search.open #search-sugg{display:block}
.sugg-head{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#7f8a99;padding:6px 8px 4px}
.sugg-empty{padding:12px;color:#9aa4b2}
.sugg{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:7px;cursor:pointer}
.sugg.active{background:#232a35}
.sugg-nr{flex:none;display:grid;place-items:center;width:28px;height:24px;border-radius:6px;background:#2b313b;color:#ffcf86;font-weight:700;font-size:12px;
  font-variant-numeric:tabular-nums}
.sugg.active .sugg-nr{background:#ffb547;color:#1b1204}
.sugg-main{flex:1;min-width:0;display:flex;flex-direction:column}
.sugg-name{color:#eef1f5;font-size:13.5px}
.sugg-en{color:#8792a2;font-size:11.5px}
.sugg-meta{flex:none;text-align:right;color:#8792a2;font-size:11px;line-height:1.3;font-variant-numeric:tabular-nums}
.sugg mark{background:none;color:#4da3ff;font-weight:650}
.sugg-nr mark{color:inherit;background:none}
@media (max-width:760px){#bar{top:60px}}

/* building and floor pins shrink to chips while rooms are shown */
.pin-card .pin-text{min-width:0}
.pin.mini .pin-card{display:flex;align-items:center;gap:10px;padding:5px 5px 5px 11px;min-width:0}
.pin.mini .pin-kicker,.pin.mini .pin-sub{display:none}
.pin.mini .pin-title{font-size:12.5px}
.pin.mini .pin-en{display:none}
.pin.mini .pin-act{margin:0;width:auto;padding:3px 9px;font-size:12px}
/* rooms shown: building chip on top, floor chips under it, the whole stack lifted clear of the rooms */
.pin-building.mini .pin-stem{top:calc(-6px - var(--lift,24px));height:var(--lift,24px)}
.pin-building.mini .pin-card{bottom:calc(6px + var(--lift,24px) + var(--nf,0) * 40px)}
.pin-floor.mini .pin-card{top:auto;bottom:calc(6px + var(--lift,24px) + (var(--nf,1) - 1 - var(--i)) * 40px)}
.pin-floor.mini .pin-card::before,.pin-floor.mini .pin-link{display:none}

/* ------------------------------------------------------------------ floor selector (left) */
#floors{position:fixed;left:12px;top:50%;transform:translateY(-50%);z-index:15;width:186px;
  background:rgba(20,23,28,.9);border:1px solid #2e3540;border-radius:12px;padding:8px;box-shadow:0 8px 24px #0009;backdrop-filter:blur(8px)}
#floors[hidden]{display:none}
.fl-head{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 7px 6px}
.fl-head span{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:#7f8a99}
.fl-all{font:inherit;font-size:11.5px;color:#9ccaff;background:none;border:0;border-radius:6px;padding:2px 6px;cursor:pointer}
.fl-all:hover:not(:disabled){background:#2b313b}
.fl-all:disabled{color:#56606d;cursor:default}
/* a second building's storeys, under the palace's: the same rows under a heading of their own */
.fl-head-sub{padding-top:11px;border-top:1px solid #2b313b;margin-top:9px}
.fl-list{display:flex;flex-direction:column;gap:5px;position:relative}
/* the storeys stacked like a section: a thin rail joins them */
.fl-list::before{content:"";position:absolute;left:17px;top:18px;bottom:18px;width:2px;background:#2e3540;border-radius:1px}
.fl-item{position:relative;display:flex;align-items:center;gap:9px;width:100%;text-align:left;font:inherit;color:#9aa4b2;
  background:#1a1e24;border:1px solid #2a3039;border-radius:9px;padding:7px 8px 7px 7px;cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.fl-item:hover{background:#232830;border-color:#3a4250}
.fl-item.on{color:#e9edf3;background:#1d2733;border-color:#35557a}
.fl-item:focus-visible,.fl-all:focus-visible{outline:2px solid #fff;outline-offset:2px}
.fl-check{flex:none;display:grid;place-items:center;width:20px;height:20px;border-radius:6px;border:1.5px solid #4a5361;background:#12151a;color:transparent;z-index:1}
.fl-item.on .fl-check{background:#4da3ff;border-color:#4da3ff;color:#06121f}
.fl-text{display:flex;flex-direction:column;min-width:0;flex:1}
.fl-name{font-size:13.5px;font-weight:600;line-height:1.2}
.fl-en{font-size:11.5px;color:#7f8a99;line-height:1.2}
.fl-item.on .fl-en{color:#9aa4b2}
.fl-meta{flex:none;font-size:10.5px;line-height:1.3;color:#7f8a99;text-align:right;font-variant-numeric:tabular-nums}
.fl-hint{font-size:10.5px;color:#66707d;padding:7px 6px 1px}
.sugg-meta.off{opacity:.55}
@media (max-width:600px){
  #floors{top:auto;bottom:56px;transform:none;width:auto;padding:6px}
  .fl-en,.fl-meta,.fl-hint{display:none}
  .fl-list::before{display:none}
  .fl-item{padding:6px 9px 6px 6px}
}
.sugg-nr{white-space:nowrap}

/* the other buildings of the site, under the storeys of C2 */
#floors .fl-site { margin-top: 6px; border-top: 1px solid rgba(255,255,255,.10); padding-top: 6px; }

/* the floor list of the building shown inside: one floor at a time (a radio, not a tick), and a close button */
.fl-radio{border-radius:50%}
.fl-item.on .fl-radio{background:#12151a;border-color:#4da3ff;box-shadow:inset 0 0 0 4px #4da3ff}
.fl-close{flex:none;font:inherit;font-size:17px;line-height:1;width:24px;height:24px;border-radius:6px;border:0;background:none;color:#9aa4b2;cursor:pointer;margin-left:6px}
.fl-close:hover{background:#2b313b;color:#fff}
.fl-close:focus-visible{outline:2px solid #fff;outline-offset:2px}
#floors .fl-head{align-items:flex-start}
#floors .fl-head span{line-height:1.35}
#floors:not([hidden]){animation:floorsIn .18s ease-out}
@keyframes floorsIn{from{opacity:0;translate:-8px 0}to{opacity:1;translate:0 0}}

/* a short, wide screen (a phone on its side): the floor list starts under the bar and scrolls rather than rising
   under it (review of 2026-10-05: its close button sat under Reset view) */
@media (max-height:500px) and (min-width:601px){
  #floors{top:64px;transform:none;max-height:calc(100vh - 76px);overflow:auto}
}