@font-face{font-family:'IBM Plex Sans Thai';font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-thai-400-normal.woff2) format('woff2');unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:'IBM Plex Sans Thai';font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2122,U+2190-21FF,U+2212}
@font-face{font-family:'IBM Plex Mono';font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Thai';font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-thai-500-normal.woff2) format('woff2');unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:'IBM Plex Sans Thai';font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2122,U+2190-21FF,U+2212}
@font-face{font-family:'IBM Plex Mono';font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:'IBM Plex Sans Thai';font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-thai-600-normal.woff2) format('woff2');unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:'IBM Plex Sans Thai';font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-sans-thai-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+2000-206F,U+20AC,U+2122,U+2190-21FF,U+2212}
@font-face{font-family:'IBM Plex Mono';font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-mono-latin-600-normal.woff2) format('woff2')}
:root{
  --bg:#0f1418; --panel:rgba(18,24,29,.92); --panel2:#1a2228; --line:#2a353d; --txt:#e6ecef; --mut:#8a9aa4;
  --acc:#4cc2ff; --sce:#e5383b; --a:#f3722c; --b:#f9c74f; --c:#43aa8b; --none:#7d8b94;
  --font:"IBM Plex Sans Thai",system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif; --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font:14px/1.45 var(--font);overflow:hidden}
button{font:inherit;color:inherit;cursor:pointer}
kbd{font:11px var(--mono);border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 4px;background:#0b0f12;color:var(--mut)}
.muted{color:var(--mut);font-size:12px}
#viewport{position:fixed;inset:0}
#viewport canvas{display:block}

/* top bar */
#topbar{position:fixed;top:0;left:0;right:0;height:56px;display:flex;align-items:center;gap:14px;padding:0 14px;
  background:linear-gradient(#0b1013f2,#0b1013d9);border-bottom:1px solid var(--line);z-index:20}
.brand{display:flex;align-items:center;gap:10px;min-width:220px}
.logo{font:600 13px var(--mono);background:var(--acc);color:#04202e;padding:4px 7px;border-radius:5px;letter-spacing:.5px}
.title{font-weight:600;display:flex;flex-direction:column;line-height:1.15}
.title small{font-weight:400;color:var(--mut);font-size:11px}
.searchwrap{flex:1;position:relative;max-width:640px}
#search{width:100%;height:38px;border-radius:8px;border:1px solid var(--line);background:#0b0f12;color:var(--txt);
  padding:0 40px 0 12px;font:15px var(--mono);outline:none}
#search:focus{border-color:var(--acc);box-shadow:0 0 0 3px #4cc2ff22}
.searchwrap kbd{position:absolute;right:10px;top:10px}
.chips{display:flex;gap:6px}
.chip{border:1px solid var(--line);background:#0b0f12;border-radius:999px;padding:3px 10px;font-size:12px;opacity:.45}
.chip.on{opacity:1}
.chip[data-cls=SCE].on{border-color:var(--sce);color:#ffb3b4}
.chip[data-cls=A].on{border-color:var(--a);color:#ffcfa9}
.chip[data-cls=B].on{border-color:var(--b);color:#ffe9a8}
.chip[data-cls=C].on{border-color:var(--c);color:#b6ecd9}
.toggle{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--mut);white-space:nowrap;margin:4px 0}

/* left panel */
#left{position:fixed;top:66px;left:10px;bottom:10px;width:350px;background:var(--panel);border:1px solid var(--line);
  border-radius:10px;display:flex;flex-direction:column;z-index:10;backdrop-filter:blur(6px)}
.tabs{display:flex;border-bottom:1px solid var(--line)}
.tabs button{flex:1;background:none;border:0;padding:10px 4px;color:var(--mut);font-size:12.5px;border-bottom:2px solid transparent}
.tabs button.on{color:var(--txt);border-bottom-color:var(--acc)}
.tab{display:none;flex:1;overflow:auto;padding:10px}
.tab.on{display:block}
#tab-results.on{display:flex;flex-direction:column;padding:0}
.filterrow{display:flex;gap:8px;align-items:center;padding:8px 10px;border-bottom:1px solid var(--line)}
select,#viewFilter{background:#0b0f12;color:var(--txt);border:1px solid var(--line);border-radius:6px;padding:5px 8px;font:inherit}
#viewFilter{width:100%;margin-bottom:8px}
#results{list-style:none;margin:0;padding:0;overflow:auto;flex:1}
#results li{display:grid;grid-template-columns:44px 1fr auto;gap:8px;align-items:center;padding:7px 10px;border-bottom:1px solid #1f282e;cursor:pointer}
#results li:hover,#results li.sel{background:#1d2a33}
#results .tag{font:500 13px var(--mono)}
#results .desc{font-size:12px;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#results .pin{font-size:11px;color:var(--mut)}
#results .pin.y{color:var(--acc)}
#results .more{color:var(--mut);text-align:center;cursor:default;display:block}
.badge{display:inline-block;min-width:38px;text-align:center;font:600 11px var(--mono);border-radius:5px;padding:2px 5px;color:#111;background:var(--none)}
.badge.SCE{background:var(--sce);color:#fff}.badge.A{background:var(--a)}.badge.B{background:var(--b)}.badge.C{background:var(--c)}
mark{background:#4cc2ff33;color:inherit;border-radius:2px}

#buildings .bld{border:1px solid var(--line);border-radius:8px;margin-bottom:8px;overflow:hidden}
#buildings .bld>header{display:flex;justify-content:space-between;align-items:center;padding:8px 10px;background:var(--panel2);cursor:pointer}
#buildings .bld.on>header{background:#173041}
#buildings .floors{display:none;padding:8px;gap:6px;flex-wrap:wrap}
#buildings .bld.on .floors{display:flex}
#buildings .floors button,.modes button,#modebar button,#exitWalk{background:#0b0f12;border:1px solid var(--line);border-radius:6px;padding:5px 10px;font-size:12.5px}
#buildings .floors button.on,.modes button.on{border-color:var(--acc);color:var(--acc)}
.modes{display:flex;gap:6px;align-items:center;margin-top:10px;font-size:12px;color:var(--mut);flex-wrap:wrap}
#views{list-style:none;margin:0;padding:0}
#views li{padding:6px 8px;border-radius:6px;cursor:pointer;font-size:12.5px}
#views li:hover{background:#1d2a33}
#layers label{display:flex;gap:8px;align-items:center;margin:5px 0;font-size:13px}
h4{margin:14px 0 6px;font-size:12px;color:var(--mut);font-weight:500;text-transform:uppercase;letter-spacing:.5px}
.legend{display:flex;flex-direction:column;gap:4px;font-size:12px;margin-top:6px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--c);margin-right:6px}

/* detail */
#detail{position:fixed;top:66px;right:10px;width:370px;max-height:calc(100% - 140px);overflow:auto;background:var(--panel);
  border:1px solid var(--line);border-radius:10px;padding:14px 16px;z-index:10;backdrop-filter:blur(6px)}
#detail .close{position:absolute;top:6px;right:8px;background:none;border:0;font-size:22px;color:var(--mut)}
#detail h2{margin:0 0 2px;font:600 20px var(--mono);word-break:break-all;padding-right:20px}
#detail .sub{color:var(--mut);margin-bottom:10px}
#detail .clsline{display:flex;gap:8px;align-items:center;margin-bottom:10px;font-size:12.5px}
#detail dl{display:grid;grid-template-columns:118px 1fr;gap:3px 10px;margin:0 0 10px;font-size:12.5px}
#detail dt{color:var(--mut)}
#detail dd{margin:0;font-family:var(--mono);font-size:12px;word-break:break-word}
#detail h3{font-size:12px;color:var(--acc);margin:12px 0 6px;font-weight:600;letter-spacing:.3px}
#detail .loc{border-radius:7px;padding:7px 9px;font-size:12px;margin-bottom:10px;background:#12303f;border:1px solid #1f4d63}
#detail .loc.rel{background:#3a3112;border-color:#6b5a1f}
#detail .loc.none{background:#2a2f33;border-color:#3a4248;color:var(--mut)}
#detail .actions{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
#detail .actions button{background:#0b0f12;border:1px solid var(--line);border-radius:6px;padding:5px 9px;font-size:12px}
#detail .actions button.pri{background:var(--acc);border-color:var(--acc);color:#04202e;font-weight:600}
#detail a{color:var(--acc)}
#detail .docs a{display:block;margin:3px 0;font-size:12.5px}
#detail .note{font-size:11.5px;color:#ffd38a}

#modebar{position:fixed;right:10px;bottom:12px;display:flex;gap:6px;z-index:10}
#modebar button{padding:8px 14px;background:var(--panel);font-size:13px}
#modebar button.on{border-color:var(--acc);color:var(--acc)}

/* walk HUD */
#walkhud{position:fixed;inset:0;pointer-events:none;z-index:15}
#walkhud .cross{position:absolute;left:50%;top:50%;width:14px;height:14px;margin:-7px;border:2px solid #fff9;border-radius:50%}
#walkhud .help{position:absolute;left:50%;transform:translateX(-50%);bottom:14px;background:var(--panel);border:1px solid var(--line);
  border-radius:8px;padding:7px 12px;font-size:12.5px;white-space:nowrap}
#walkhud .walkinfo{position:absolute;left:12px;top:66px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font:12px var(--mono)}
#exitWalk{position:absolute;right:12px;top:66px;pointer-events:auto;background:var(--panel)!important}
.touchpad{position:absolute;left:14px;bottom:60px;display:none;grid-template-columns:repeat(3,48px);gap:6px;pointer-events:auto}
.touchpad button{height:48px;border-radius:10px;background:var(--panel);border:1px solid var(--line);font-size:18px}
.touchpad button:nth-child(1){grid-column:2}.touchpad button:nth-child(2){grid-column:1;grid-row:2}
.touchpad button:nth-child(3){grid-column:2;grid-row:2}.touchpad button:nth-child(4){grid-column:3;grid-row:2}
.touchpad button:nth-child(5){grid-column:1;grid-row:1}.touchpad button:nth-child(6){grid-column:3;grid-row:1}
@media (pointer:coarse){.touchpad{display:grid}}

#hint{position:fixed;left:50%;top:70px;transform:translateX(-50%);background:#0b2a3a;border:1px solid var(--acc);color:#cfefff;
  padding:8px 14px;border-radius:8px;z-index:30;font-size:13px}
#loading{position:fixed;inset:0;display:grid;place-items:center;background:#0f1418cc;z-index:40}
#loading .box{width:360px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px}
#loading .bar{height:6px;background:#0b0f12;border-radius:4px;overflow:hidden;margin:10px 0 6px}
#loading .bar i{display:block;height:100%;width:0;background:var(--acc);transition:width .2s}

/* 3D labels */
.lbl3d{font:500 11px var(--mono);color:#fff;background:#000a;border:1px solid #fff3;border-radius:4px;padding:1px 5px;white-space:nowrap;
  pointer-events:auto;cursor:pointer;transform:translateY(-14px)}
.lbl3d.sel{background:var(--acc);color:#04202e;font-size:13px;font-weight:600;border-color:#fff}
.lbl3d.SCE{border-color:var(--sce)}.lbl3d.A{border-color:var(--a)}.lbl3d.B{border-color:var(--b)}.lbl3d.C{border-color:var(--c)}

@media (max-width:820px){
  #topbar{height:auto;flex-wrap:wrap;padding:8px}
  .brand{min-width:0}.chips,.toggle{display:none}
  #left{top:auto;left:0;right:0;bottom:0;width:auto;height:42%;border-radius:12px 12px 0 0}
  #detail{left:8px;right:8px;width:auto;top:100px;max-height:45%}
  #modebar{bottom:calc(42% + 8px)}
}

body.walking #left, body.walking #detail{display:none}
#detail .children{list-style:none;margin:0;padding:0;max-height:260px;overflow:auto;border:1px solid var(--line);border-radius:6px}
#detail .children li{display:grid;grid-template-columns:44px 1fr;gap:8px;padding:5px 8px;border-bottom:1px solid #1f282e;cursor:pointer;font-size:12px}
#detail .children li:hover{background:#1d2a33}
#detail .children b{font:500 12px var(--mono)}