.model-key{position:absolute;left:16px;top:14px;display:flex;flex-wrap:wrap;gap:7px 12px;max-width:320px;padding:8px 10px;background:rgba(9,12,16,.76);border:1px solid #29323b;color:#aab3bc;font-size:10px}.model-key span{display:flex;align-items:center;gap:5px}.model-key i{width:8px;height:8px;border-radius:50%;background:#b7afa3}.model-key .drain{background:#48b8d7}.model-key .hv{background:#ef5d4e}.model-key .lv{background:#f4cb4b}.model-key .fibre{background:#5bd98a}.realistic-mode #realisticBtn,.cad-mode #cadBtn{border-color:#8d673d;color:#fff;background:#282117}@media(max-width:780px){.model-key{display:none}.view-tools #cadBtn,.view-tools #realisticBtn{display:inline-block}}
.nav-console{position:absolute;right:14px;bottom:14px;width:246px;background:rgba(10,14,18,.92);border:1px solid #35404a;box-shadow:0 16px 42px rgba(0,0,0,.28);backdrop-filter:blur(14px);color:#d7dee4}.nav-head{height:34px;display:flex;align-items:center;justify-content:space-between;padding:0 10px;border-bottom:1px solid #2b343e;color:#f0a94b;font-size:10px;letter-spacing:.13em}.nav-head button{border:0;background:transparent;color:#aab4bd;font-size:18px;cursor:pointer}.nav-body{padding:9px}.nav-console.collapsed .nav-body{display:none}.nav-console.collapsed{width:130px}.nav-label{margin:7px 0 5px;color:#75818d;font-size:9px;font-weight:800;letter-spacing:.12em}.nav-grid{display:grid;gap:4px}.nav-grid.two{grid-template-columns:1fr 1fr}.nav-grid.four{grid-template-columns:repeat(4,1fr)}.nav-console button,.speed-control select{min-height:30px;border:1px solid #35404a;background:#151b22;color:#c7d0d8;font-size:9px;font-weight:750;letter-spacing:.05em;cursor:pointer}.nav-console button:hover{border-color:#a7753e;background:#2a2218;color:#fff}.nav-pad{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.speed-control{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:7px;margin-top:8px;color:#7f8b96;font-size:9px;font-weight:800}.speed-control select{width:100%;padding:0 5px}.nav-help{display:grid;grid-template-columns:1fr 1fr;gap:3px 8px;margin-top:8px;color:#77838e;font-size:9px}@media(max-width:780px){.nav-console{right:8px;bottom:10px;width:210px}.nav-help,.speed-control{display:none}.nav-grid.four{grid-template-columns:repeat(4,1fr)}}
#viewport{background:radial-gradient(circle at 50% 38%,#f8fbfd 0,#dce5eb 58%,#bcc9d2 100%)}#viewport:after{display:none}.dark-canvas #viewport{background:radial-gradient(circle at 50% 42%,#26313b 0,#11171d 62%,#090c10 100%)}.dark-canvas #themeBtn{border-color:#8d673d;color:#fff;background:#282117}
#modelNotes{width:min(820px,90vw);max-height:85vh;background:#f7f5ef;color:#25323a;border:1px solid #7c8b93;border-radius:8px;padding:24px;font:14px/1.65 system-ui;overflow:auto}#modelNotes::backdrop{background:#102333aa}#modelNotes h2{font-size:21px;color:#25323a}#modelNotes li{margin-bottom:14px}#modelNotes a{color:#006a83}#modelNotes .panel-head{padding:0;border:0}#closeNotes{color:#25323a;background:transparent;font-size:30px;border:0;cursor:pointer}.view-tools{overflow-x:auto;flex-wrap:wrap;gap:4px}.nav-grid+.nav-grid{margin-top:5px}.view-tools #levelsBtn.active,.view-tools #coversBtn.active{border-color:#f0a94b}.info-panel dl dd{overflow-wrap:anywhere}
.info-panel.empty{display:none}#app:has(.info-panel.empty) #viewport{right:0}.info-panel{overflow:auto}#closeInfo,#closeNotes{display:block}.topbar{height:94px}.panel{top:94px}#viewport{top:94px}.view-tools button{padding:8px;font-size:10px}.hint{left:16px;transform:none;bottom:12px;white-space:normal;max-width:320px}.orientation{display:none}
@media(max-width:780px){.topbar{height:62px}.panel{top:62px}#viewport{top:105px}.view-tools{width:100vw;flex-wrap:nowrap;justify-content:flex-start}.view-tools button{flex-shrink:0}.info-panel{top:auto}.hint{display:none}.brand strong{font-size:14px}}
#measureOverlay{position:absolute;inset:0;pointer-events:none;z-index:3}#measureOverlay svg{width:100%;height:100%;overflow:hidden}#measurePanel{position:absolute;left:16px;top:56px;width:340px;max-height:calc(100% - 110px);overflow:auto;padding:16px;background:#f6f8fa;color:#20333e;box-shadow:0 8px 30px #132d3b38;border:1px solid #8da3ae;z-index:6;font-size:14px;line-height:1.45;border-radius:6px}#measurePanel[hidden]{display:none}.measure-head{display:flex;align-items:center;justify-content:space-between}.measure-head h2{margin:0 0 12px;font-size:20px}.measure-head button{font-size:24px!important;border:0!important;background:none!important}#measurePanel button{border:1px solid #879ba6;background:#fff;color:#243d4c;font-size:14px;padding:8px;cursor:pointer;border-radius:3px}#measurePanel button.active{background:#174e69;color:#fff;border-color:#174e69}#measurePanel button:disabled{opacity:.45;cursor:default}.measure-tabs{display:grid;grid-template-columns:1fr 1fr;gap:5px}.measure-tabs button:last-child{grid-column:1/-1}#snapControl{display:flex;align-items:center;gap:6px;font-size:13px}#snapControl[hidden]{display:none}#snapControl span{margin-left:auto;color:#607580;font-size:12px}#measureResult dl{margin:12px 0}#measureResult dl>div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid #d4dee3;padding:7px 0}#measureResult dt{font-size:13px}#measureResult dd{margin:0;font-size:15px;font-variant-numeric:tabular-nums;font-weight:650;white-space:nowrap}.measure-note{font-size:12px;line-height:1.5;color:#5c717d}.measure-object{font-weight:650}.measure-error{padding:10px;background:#fff0dd;color:#7b3f00}#measurePoints{padding-left:18px;font-size:12px;font-variant-numeric:tabular-nums;max-height:110px;overflow:auto}#measurePoints li{margin:7px 0}.measure-actions{display:flex;gap:5px;flex-wrap:wrap}#measureInstruction{font-size:14px}@media(max-width:780px){#measurePanel{left:8px;top:8px;width:min(330px,calc(100% - 16px));max-height:47%;padding:10px}.measure-tabs{grid-template-columns:1fr 1fr 1fr}.measure-tabs button:last-child{grid-column:auto}.measure-tabs button{font-size:12px!important;padding:6px!important}.measure-note{margin:8px 0}#measurePoints{max-height:60px}}
#clashPanel{position:absolute;left:16px;top:56px;width:368px;max-height:calc(100% - 84px);overflow:auto;padding:16px;background:#f6f8fa;color:#20333e;border:1px solid #8da3ae;border-radius:6px;box-shadow:0 8px 30px #132d3b38;z-index:6;font:13px/1.45 system-ui}#clashPanel[hidden]{display:none}#clashPanel h2{margin-bottom:8px}#clashPanel button{border:1px solid #91a4ae;border-radius:3px;background:white;color:#20333e;padding:7px 10px;cursor:pointer;font:inherit}#clashPanel button:disabled{opacity:.45;cursor:default}#clashPanel select,#clashSearch{width:100%;min-width:0;border:1px solid #91a4ae;border-radius:3px;background:#fff;color:#20333e;padding:7px 5px;font:12px system-ui}.clash-settings{display:grid;grid-template-columns:1fr 1.3fr;gap:8px}.clash-settings label{font-size:12px;font-weight:650}.clash-settings select{margin-top:4px}.clash-actions,.clash-pages{display:flex;align-items:center;gap:10px;margin-top:10px}.clash-actions{justify-content:space-between}.clash-note{font-size:12px;color:#586e7a;line-height:1.5}details.clash-note{margin:10px 0;padding:8px;border:1px solid #c8d4dc;border-radius:4px}details.clash-note summary{cursor:pointer;font-weight:650}#clashStatus{font-weight:650;padding:9px;background:#e3edf3;border-radius:4px}#clashSearch{margin:10px 0}.clash-isolate{display:flex;align-items:center;gap:5px;margin-bottom:10px}.clash-result{display:block!important;width:100%;text-align:left;margin:7px 0;padding:10px!important;overflow-wrap:anywhere}.clash-result span{display:block;font-size:12px;color:#576a74}.clash-result span small{display:block;font-weight:400}.clash-result b{display:block;font-weight:600;margin-top:5px}.clash-result>small{color:#617583;font-size:11px}.clash-a{color:#b82640}.clash-b{color:#0062cf}.clash-result.active{outline:2px solid #174e69;background:#e8f2f8!important}.clash-pages{position:sticky;bottom:-16px;background:#f6f8fa;padding:10px 0;margin-top:0}.clash-pages span{font-size:12px;flex:1}.clash-pages button{padding:5px 9px!important}#clashDetail:not(:empty){border:1px solid #98acb9;border-radius:4px;padding:10px;margin:8px 0;background:#e8f0f5}#clashDetail p{margin:8px 0;overflow-wrap:anywhere}#clashMarker{position:absolute;pointer-events:none;transform:translate(-50%,-50%);text-align:center;z-index:4;color:#12313f;font:bold 10px system-ui;white-space:nowrap;text-shadow:1px 1px 2px #fff,-1px -1px 2px #fff}#clashMarker span{display:block;font-size:34px;line-height:34px;color:#cf1f45;text-shadow:0 0 3px #fff}#clashBtn.active,#measureBtn.active{border-color:#f0a94b;background:#282117;color:white}#properties div:has(dt:first-child){font-variant-numeric:tabular-nums}
@media(max-width:780px){#clashPanel{left:8px;top:8px;width:min(350px,calc(100% - 16px));max-height:50%;padding:10px}.clash-pages{bottom:-10px}}
#clashPanel .measure-head{position:sticky;top:-16px;background:#f6f8fa;z-index:2;padding:8px 0;border-bottom:1px solid #c8d4dc}#clashPanel .measure-head h2{margin:0;font-size:19px}#clashPanel .measure-head button{line-height:1;min-width:32px}@media(max-width:780px){#clashPanel .measure-head{top:-10px}}
/* Touch-first navigation: controls remain accessible while inspecting a model. */
#viewport>canvas{touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;overscroll-behavior:none}
#navigationDock{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);z-index:7;width:min(470px,calc(100% - 24px));padding:8px 10px 7px;border:1px solid #617887;border-radius:10px;background:#10222eef;box-shadow:0 4px 20px #10233330;color:#edf6fc}
.navigation-modes{display:grid;grid-template-columns:1fr 1fr .65fr 1.45fr;gap:6px}#navigationDock button{min-height:44px;padding:8px 5px;border:1px solid #536d7e;border-radius:5px;background:#203947;color:#eaf3f8;font:700 14px system-ui;cursor:pointer;touch-action:manipulation}#navigationDock button.active{background:#f0a94b;color:#182633;border-color:#ffca83}#gestureHint{margin:6px 0 0;text-align:center;font-size:12px;line-height:1.4;color:#c5dce9}
.nav-console{bottom:112px;max-height:calc(100% - 128px);overflow:auto;width:292px;border-radius:7px;z-index:5;overscroll-behavior:contain}.nav-console.collapsed{display:none}.nav-head{position:sticky;top:0;background:#101c25;z-index:1;height:44px}.nav-head b{font-size:12px}.nav-head button{min-width:44px;min-height:44px;font-size:24px}.nav-console .nav-label{font-size:12px;margin:10px 0 7px;letter-spacing:.04em}.nav-console button{min-height:44px;font-size:12px;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.nav-console button.held{background:#f0a94b;color:#152631;border-color:#ffca83}.nav-motion{display:grid;grid-template-columns:1fr 52px;gap:8px;margin-bottom:8px}.nav-pad{grid-template-columns:repeat(3,1fr);gap:5px}.nav-pad button{font-size:23px}.nav-pad #navCentre{font-size:13px}.nav-depth{display:grid;grid-template-rows:1fr 1fr;gap:5px}.nav-depth button{font-size:27px}.nav-help{font-size:12px;line-height:1.5}.hint{display:none}
@media(max-width:780px){#navigationDock{bottom:8px;width:calc(100% - 16px);padding:7px}.navigation-modes{gap:4px}#navigationDock button{font-size:13px;min-height:46px}#gestureHint{font-size:12px;letter-spacing:0}.nav-console{right:8px;bottom:106px;width:min(300px,calc(100% - 16px));max-height:calc(100% - 122px)}.info-panel{bottom:140px;max-height:40vh}.nav-help{display:grid}.model-key{pointer-events:none}}
.nav-console button{touch-action:manipulation}.nav-console [data-pan],.nav-console [data-zoom],.nav-console [data-elevation]{touch-action:none}

.site-view{position:absolute;left:16px;top:64px;z-index:4;max-width:410px;padding:9px;border:1px solid #748894;border-radius:7px;background:#f5f8f9ed;color:#233d4b;box-shadow:0 3px 15px #20394a1f}.site-view>div{display:flex;gap:5px}.site-view button{min-height:40px;padding:7px 10px;border:1px solid #8096a3;border-radius:4px;background:#fff;color:#1d3b4d;font:600 13px system-ui;cursor:pointer}.site-view button.active{background:#174e69;color:white;border-color:#174e69}.site-view p{margin:7px 0 0;font:11px/1.4 system-ui;max-width:365px}#measurePanel,#clashPanel{top:174px;max-height:calc(100% - 280px)}
@media(max-width:780px){.site-view{top:8px;left:8px;right:8px;padding:6px;max-width:none}.site-view>div{display:grid;grid-template-columns:1fr 1fr 1fr}.site-view button{font-size:12px;min-height:42px;padding:6px 3px}.site-view p{font-size:10px;max-width:none}#measurePanel,#clashPanel{top:108px;max-height:calc(100% - 214px)}}

.issues-wrap{overflow-x:auto}.issues-wrap table{width:100%;border-collapse:collapse;font-size:12px}.issues-wrap th,.issues-wrap td{text-align:left;padding:7px;border-bottom:1px solid #c0c7c8;white-space:nowrap}

#formationControls{margin-top:8px;border-top:1px solid #bbc9cf;padding-top:7px}#formationControls summary{font:600 14px system-ui;cursor:pointer;padding:4px 0}#formationChoices{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:7px}.formation-choice{display:flex;align-items:center;gap:7px;min-height:44px;padding:6px 8px;border:1px solid #b5c6ce;border-left:4px solid var(--group-color);border-radius:4px;background:#fff;cursor:pointer;font:500 14px/1.25 system-ui}.formation-choice input{width:18px;height:18px;accent-color:#174e69;flex-shrink:0}.formation-choice small{display:block;font-size:12px;color:#526672}.site-view .earthworks-note{font-size:12px;margin-top:8px}.site-view{max-width:440px}#measurePanel,#clashPanel{top:var(--surface-panel-bottom,300px);max-height:calc(100% - var(--surface-panel-bottom,300px) - 110px)}
@media(max-width:780px){.formation-choice{font-size:14px;padding:5px 6px}.site-view{max-width:none}.site-view>div{grid-template-columns:repeat(3,1fr)}#measurePanel,#clashPanel{top:var(--surface-panel-bottom,270px);max-height:calc(100% - var(--surface-panel-bottom,270px) - 105px)}}