/* A quiet front door, with the source review and full toolset kept together. */
:root{--panel:#101a23;--line:#283844;--muted:#a3b3bf;--mint:#69d3ee;--amber:#a5e6f7;background:#080f15;color:#edf4f7}
body{background:#080f15;color:#edf4f7}.app-header{min-height:76px;padding:14px max(24px,calc((100vw - 1540px)/2));gap:16px;background:#080f15}.brand-logo{width:112px;height:auto;max-height:44px}.brand strong{font-size:18px}.brand strong span{color:#a6b7c3}.project-identity{font-size:10px;color:#a9bdc9}.desktop-help,.theme-toggle{min-height:44px;padding:8px 13px;font-size:12px;background:transparent;border-color:var(--line);flex:none}.desktop-help{display:block;margin-left:0}.theme-toggle{margin-left:8px}.app-header .brand{min-width:0}.app-header .eyebrow{font-size:9px;letter-spacing:1.3px}
.dragonfire-intro{max-width:1540px;margin:auto;padding:26px 24px 22px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 32px;background:none;border-bottom:1px solid var(--line)}.dragonfire-intro h1{font-size:clamp(27px,3vw,39px);line-height:1.1;letter-spacing:-1.3px;margin:9px 0}.intro-lead>p{font-size:14px;color:#acbeca;line-height:1.65;margin:0}.intro-lead .workspace-limit{margin-top:9px;font-size:11px;color:#d3c29a}.intro-primary-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;align-self:center}.intro-primary-actions>a,.intro-primary-actions .intro-action{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 15px;font-size:12px;text-decoration:none;border:1px solid var(--line);border-radius:8px;color:#edf4f7;background:#101b25}.intro-primary-actions>a{background:#087bea;border-color:#087bea;color:#fff;font-weight:700}.intro-primary-actions .intro-action-pair{display:flex;align-items:center;gap:4px}.intro-primary-actions .intro-action.video-action{background:transparent;border-color:var(--line);color:#d9e7ee}.intro-primary-actions .intro-info{height:44px;min-height:44px;width:36px;border:0;background:transparent;color:var(--mint)}.intro-details{grid-column:1/-1;border:0;border-top:1px solid var(--line);margin:2px 0 0;padding:0}.intro-details>summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:6px 0;margin:0;font-size:12px;color:#aec3d0;list-style:none}.intro-details>summary::after{content:'+';font-size:20px;color:var(--mint)}.intro-details[open]>summary::after{content:'−'}.intro-details>summary>span{margin-left:auto}.intro-details-content{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:26px;padding:14px 0 20px}.intro-details .intro-main>h2{font-size:23px;margin:12px 0}.intro-details .intro-summary,.intro-details .intro-tagline{font-size:13px;line-height:1.7}.intro-details .intro-actions{display:grid;align-content:start;gap:10px}.intro-details .intro-actions>a{min-height:44px;font-size:12px;line-height:1.5}.intro-details .intro-action{min-height:44px;font-size:12px}.community-principles{padding:12px 14px;background:transparent}.community-principles>summary{min-height:44px;display:flex;align-items:center;font-size:13px}.community-copy p{font-size:12px;line-height:1.7}.intro-flow{font-size:11px}.engine-system-cards b,.engine-system-cards span,.engine-status{font-size:11px;line-height:1.55}
main{max-width:1540px;margin:auto;grid-template-columns:minmax(0,1fr) 320px;height:auto;min-height:650px}.workspace{overflow:visible;background:#080f15}.viewer{height:clamp(540px,65vh,800px);height:clamp(540px,65dvh,800px);min-height:540px;background:radial-gradient(ellipse at 48% 43%,#223b48 0,#112531 50%,#0d1822 90%);border-bottom:1px solid var(--line)}.viewer:after{display:none}.viewer-heading{top:24px;left:28px;right:28px}.viewer-heading h2{font-size:clamp(23px,2.6vw,34px);font-weight:600;letter-spacing:-1px;margin:9px 0 7px;overflow-wrap:anywhere}.viewer-heading p{font-size:12px}.viewer-caption{left:28px;bottom:80px}.viewport-tools{left:28px;right:24px;bottom:18px;gap:5px}.viewport-tools button{min-height:44px;font-size:12px}.viewport-tools .mobile-info{width:32px;min-width:32px;min-height:44px;border:0;border-radius:6px;background:transparent;color:var(--mint)}.viewport-tools span{font-size:10px}.viewer canvas{top:115px;height:calc(100% - 235px)}aside#controls{padding:25px 22px;background:#0d1720;border-color:var(--line);overflow:visible}.character-picker>label{color:#c8d6de;letter-spacing:0}.character-picker select{min-height:46px}.character-picker p{line-height:1.65;font-size:11px}#nameStatus{color:#d2bf93}
.control-section{margin-top:18px;padding-top:0}.control-section>summary{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0;min-height:56px;font-size:14px;list-style:none;color:#dbe7ee}.control-section>summary::after{content:'+';color:var(--mint);font-size:20px;font-weight:400}.control-section[open]>summary::after{content:'−'}.control-body{padding:4px 0 12px}.control-body>.section-heading h2{font-size:12px;font-weight:500;color:var(--muted)}.control-section .section-heading .tag{font-size:8px}.control-section button,.control-section select,.control-section input:not([type=checkbox]):not([type=range]){min-height:44px}.control-section .mobile-info{min-width:36px;min-height:44px;border:0;background:transparent;color:var(--mint)}.control-section .check{min-height:36px;line-height:1.5}.control-section .muted{font-size:12px}.control-section>label:first-of-type{margin-top:5px}.control-section>p:last-child{margin-bottom:16px}.sidebar-footer{font-size:11px;line-height:1.7}.sidebar-footer p{font-size:11px}.sidebar-footer strong{font-size:12px}
.growth-panel,.processing-disclosure{padding:0 28px;margin:0;border:0;border-bottom:1px solid var(--line);background:#0b151e}.growth-panel>summary,.processing-disclosure>summary{display:flex;align-items:center;gap:12px;min-height:56px;margin:0;padding:10px 0;list-style:none;font-size:13px;color:#bbceda}.growth-panel>summary::after,.processing-disclosure>summary::after{content:'+';margin-left:auto;color:var(--mint);font-size:20px}.growth-panel[open]>summary::after,.processing-disclosure[open]>summary::after{content:'−'}.growth-panel>summary span,.processing-disclosure>summary span{font-size:13px;color:var(--muted)}.growth-content{padding:8px 0 20px}.growth-content .growth-summary{font-size:12px;line-height:1.6}.growth-content .stage-choice{min-height:70px;font-size:11px}.growth-content>p{font-size:11px;line-height:1.7}.processing-monitor{padding:8px 0 20px;border:0;background:none}.stage-choice{background:#11212c;border-color:#304653}.stage-choice.active{background:#153446;border-color:#4baccb;color:#d5f0fa}.stage-choice small{font-size:9px}.growth-panel .hold-badge{font-size:10px}.mobile-tool-guide{z-index:90;top:80px;right:20px;padding:20px;border-color:#456371;background:#0d1b25}.mobile-guide-heading button{min-height:44px}.mobile-tool-guide dt,.mobile-tool-guide dd{line-height:1.65;font-size:12px}.mobile-guide-heading h2{font-size:17px}.mobile-tooltip,.layout-tooltip{z-index:100;max-width:min(340px,calc(100vw - 24px));background:#101f2b;border:1px solid #4e7183;color:#edf5fa;font-size:12px;line-height:1.6;border-radius:8px;padding:12px 14px;box-shadow:0 10px 32px #0005}.layout-tooltip{position:fixed;pointer-events:none;width:max-content}.mobile-tool-guide .layout-control-help{margin-top:12px;border-top:1px solid var(--line);padding-top:8px}.layout-control-help summary{min-height:44px}.layout-control-help dl{display:block;max-height:240px;overflow:auto}.layout-control-help dt{font-weight:700;margin-top:10px}.layout-control-help dd{margin:4px 0;color:var(--muted)}button:focus-visible,summary:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #69d3ee;outline-offset:3px}
html[data-theme=light]{color-scheme:light;background:#f3f7fa;color:#182c3a;--panel:#fff;--line:#d3dee5;--muted:#4e687a;--mint:#087aa3;--amber:#087aa3}html[data-theme=light] body,html[data-theme=light] .app-header,html[data-theme=light] .workspace{background:#f3f7fa;color:#182c3a}html[data-theme=light] .brand strong span,html[data-theme=light] .project-identity,html[data-theme=light] .intro-lead>p{color:#4b6679}html[data-theme=light] .eyebrow{color:#087aa3}html[data-theme=light] button{background:#fff;color:#183a50;border-color:#c0d2dd}html[data-theme=light] button.primary{background:#087bea;color:#fff;border-color:#087bea}html[data-theme=light] .intro-primary-actions>a{color:#fff}html[data-theme=light] .intro-primary-actions .intro-action,html[data-theme=light] .intro-details>summary{color:#244b63}html[data-theme=light] .intro-lead .workspace-limit,html[data-theme=light] #nameStatus{color:#7c5b14}html[data-theme=light] aside#controls,html[data-theme=light] .growth-panel,html[data-theme=light] .processing-disclosure{background:#fff}html[data-theme=light] .control-section>summary,html[data-theme=light] .growth-panel>summary,html[data-theme=light] .processing-disclosure>summary,html[data-theme=light] label{color:#244b63}html[data-theme=light] input:not([type=range]):not([type=checkbox]),html[data-theme=light] select,html[data-theme=light] textarea{background:#f5f8fa;color:#183a50;border-color:#c3d3de}html[data-theme=light] .character-picker>label,html[data-theme=light] .sidebar-footer strong{color:#244b63}html[data-theme=light] .mobile-tool-guide{background:#fff;color:#183a50}html[data-theme=light] .mobile-tooltip,html[data-theme=light] .layout-tooltip{background:#fff;color:#183a50}html[data-theme=light] .engine-system-cards article,html[data-theme=light] .community-principles{background:#f4f8fb;border-color:#cadbe4}html[data-theme=light] .engine-system-cards b{color:#1e596e}html[data-theme=light] .engine-system-cards span,html[data-theme=light] .engine-status{color:#476579}html[data-theme=light] .stage-choice{background:#f3f8fb;color:#244b63;border-color:#c2d7e2}html[data-theme=light] .stage-choice.active{background:#e0f3fa;border-color:#087aa3}html[data-theme=light] .control-body h2{color:#4e687a}
@media(max-width:1150px){.project-identity{display:none}.app-header .brand{margin-right:auto}.dragonfire-intro{grid-template-columns:1fr auto;gap:14px 20px}.intro-primary-actions{max-width:330px}.viewport-tools>span{display:none}.intro-details-content{grid-template-columns:1fr 220px}main{grid-template-columns:minmax(0,1fr) 300px}}
@media(max-width:850px){.app-header{padding:12px 16px;gap:10px;min-height:72px}.brand-logo{width:92px}.brand strong{font-size:15px}.brand strong span{display:none}.brand .eyebrow{font-size:8px;letter-spacing:.6px}.theme-toggle,.desktop-help{padding:8px 10px;font-size:11px}.theme-toggle{margin-left:auto}.dragonfire-intro{padding:22px 18px 8px;grid-template-columns:1fr}.dragonfire-intro h1{font-size:31px}.intro-primary-actions{max-width:none;align-self:start;gap:8px}.intro-lead .workspace-limit{font-size:11px}.intro-details-content{grid-template-columns:1fr}.intro-details .intro-actions{grid-template-columns:1fr 1fr}.intro-details .intro-summary,.intro-details .intro-tagline{font-size:12px}.intro-details .intro-heading{flex-wrap:wrap}.engine-system-cards{grid-template-columns:1fr 1fr}main{grid-template-columns:1fr;min-height:0}.viewer{height:64vh;height:64dvh;min-height:480px}.viewer-heading{left:20px;right:20px}.viewer-heading h2{font-size:26px}.viewer-caption{left:20px;right:20px}.growth-panel,.processing-disclosure{padding:0 20px}aside#controls{padding:20px;border-left:0;border-top:1px solid var(--line)}.character-picker{max-width:660px}.mobile-tools-shell{position:static;padding-top:0;box-shadow:none;background:#0d1923}.mobile-tool-grid{grid-template-columns:repeat(3,minmax(0,1fr));padding:10px 16px;gap:8px}.mobile-tool{grid-template-columns:1fr 34px;gap:2px}.mobile-tool button,.mobile-tool .mobile-help-toggle{min-height:44px;font-size:11px}.mobile-tool .mobile-info{min-width:34px;width:34px;min-height:44px;height:44px;border-radius:6px;border:0;background:transparent;font-size:13px}.mobile-tool-guide{top:80px;right:12px;width:min(460px,calc(100vw - 24px));max-height:calc(100dvh - 96px)}.mobile-tool-guide dl{grid-template-columns:90px minmax(0,1fr);gap:9px 12px}.mobile-tool-guide dt,.mobile-tool-guide dd{font-size:12px}.control-section{max-width:660px}.viewport-tools{display:none}#modelControls,#motionControls{scroll-margin-top:16px}html[data-theme=light] .mobile-tools-shell{background:#eaf2f7}html[data-theme=light] .mobile-tool button{background:#fff;color:#244b63;border-color:#c0d2dd}}
@media(max-width:560px){.brand .eyebrow{display:none}.brand strong{font-size:14px}.brand-logo{width:82px}.app-header{gap:8px}.desktop-help,.theme-toggle{padding:8px;font-size:11px}.intro-primary-actions>a,.intro-primary-actions .intro-action{font-size:11px;padding:10px 12px}.intro-primary-actions .intro-info{width:30px}.mobile-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;padding:10px 14px}.viewer-heading h2{font-size:24px}.viewer{min-height:500px}.viewer canvas{top:133px;height:calc(100% - 245px)}.viewer-heading p{font-size:11px}.viewer-caption{bottom:27px}.viewer-caption>span:last-child{font-size:10px}.viewer-caption strong{font-size:11px}.intro-details .intro-actions{grid-template-columns:1fr}.community-copy p,.community-copy .source-release-note{font-size:12px}.intro-flow{font-size:11px}.engine-system-cards b,.engine-system-cards span,.engine-status{font-size:11px}}

/* Help stays usable before source geometry finishes loading. */
.mobile-tool-guide{position:fixed;width:min(460px,calc(100vw - 40px));max-height:calc(100dvh - 100px);overflow:auto;border:1px solid #456371;border-radius:10px;box-shadow:0 18px 50px #0006;overscroll-behavior:contain}.mobile-guide-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}.mobile-tool-guide>dl{display:grid;grid-template-columns:90px minmax(0,1fr);gap:12px}.mobile-tool-guide dt{font-weight:700;color:var(--mint)}.mobile-tool-guide dd{margin:0;color:var(--muted)}.mobile-extra-tools{position:relative;border:0;margin:0;padding:0}.mobile-extra-tools>summary{display:flex;align-items:center;justify-content:center;gap:6px;min-height:44px;margin:0;padding:8px;border:1px solid #405761;border-radius:7px;background:#172a34;color:#e4eeeb;font-size:11px;list-style:none}.mobile-extra-tools>summary::after{content:'+';color:var(--mint);font-size:16px}.mobile-extra-tools[open]>summary::after{content:'−'}.mobile-extra-grid{position:absolute;top:calc(100% + 6px);right:0;z-index:55;width:min(340px,calc(100vw - 36px));display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:12px;border:1px solid #405761;border-radius:9px;background:#0d1923;box-shadow:0 12px 28px #0007}html[data-theme=light] .mobile-extra-tools>summary,html[data-theme=light] .mobile-extra-grid{color:#244b63;background:#fff;border-color:#c0d2dd}@media(max-width:850px){.mobile-tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-extra-grid .mobile-tool:last-child{grid-column:1/-1}}@media(max-width:560px){.mobile-tool-guide{width:calc(100vw - 24px)}.mobile-tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-tool button{font-size:10px}.mobile-tool{grid-template-columns:minmax(0,1fr) 29px}.mobile-tool .mobile-info{width:29px;min-width:29px}.mobile-extra-tools>summary{font-size:10px}}
/* Small information glyphs keep a full touch and keyboard target. */
.intro-info,.intro-primary-actions .intro-info,.viewport-tools .mobile-info,.control-section .mobile-info,.character-picker>.mobile-info,.mobile-tool .mobile-info{width:44px;min-width:44px;min-height:44px;height:44px}.mobile-tool{grid-template-columns:minmax(0,1fr) 44px}.mobile-tool-grid .mobile-tool .mobile-info{width:44px;min-width:44px;min-height:44px;height:44px}@media(max-width:560px){.mobile-tool{grid-template-columns:minmax(0,1fr) 44px}.mobile-tool-grid{gap:5px;padding-inline:10px}.mobile-tool button{padding-inline:4px}}

/* Guided entry and fullscreen share the existing inspection workspace. */
.tour-entry{max-width:1492px;margin:18px auto;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:16px 20px;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
.tour-entry strong{font-size:16px}.tour-entry p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.5}.tour-entry #landscapeHint{color:var(--mint)}.tour-entry-actions{display:flex;align-items:center;flex:none;gap:4px}.tour-entry button,.viewer-actions button,.tour-controls button{min-height:44px}.tour-entry-actions .mobile-info,.viewer-actions .mobile-info{width:44px;min-width:44px;border:0;background:transparent;color:var(--mint)}
.viewer-actions{position:absolute;top:14px;right:14px;display:flex;gap:4px;align-items:center;z-index:15}.viewer-actions button{padding:8px 10px;font-size:12px;background:#102331;color:#edf4f7;border-color:#466273}.viewer-actions button:disabled{opacity:.5}.viewer-heading{right:400px}.viewer-status{position:absolute;top:60px;right:18px;margin:0;color:#b7cad6;font-size:10px;z-index:14}.viewer-status:empty{display:none}
.tour-panel{position:absolute;z-index:14;bottom:76px;left:20px;right:20px;margin:auto;max-width:640px;background:#0c1c29f5;color:#edf4f7;border:1px solid #4e7183;border-radius:10px;padding:12px 16px;box-shadow:0 8px 30px #0005}.tour-copy strong{font-size:14px}.tour-copy p{font-size:13px;line-height:1.5;margin:6px 0}.tour-copy small{display:block;font-size:10px;color:#b3c8d5}.tour-controls{display:flex;gap:6px;margin-top:8px}.tour-controls button{font-size:12px;padding:8px 12px;background:#173143;color:#edf4f7;border-color:#466273}.tour-controls #tourEnd{margin-left:auto}.viewer.touring .viewer-caption{display:none}.viewer.touring canvas{height:calc(100% - 320px)}
html.viewer-expanded,html.viewer-expanded body{overflow:hidden;height:100%;overscroll-behavior:none}.viewer-expanded .app-header,.viewer-expanded .dragonfire-intro,.viewer-expanded .tour-entry,.viewer-expanded .mobile-tools-shell,.viewer-expanded aside#controls,.viewer-expanded .growth-panel,.viewer-expanded .processing-disclosure{display:none!important}.viewer-expanded main{display:block;max-width:none;margin:0;height:100dvh;min-height:0}.viewer-expanded .workspace{height:100%;min-height:0}.viewer-expanded .viewer{position:fixed;inset:0;z-index:80;width:100%;height:100dvh;min-height:0;border:0}.viewer-expanded .viewer-actions{top:max(10px,env(safe-area-inset-top));right:max(12px,env(safe-area-inset-right))}.viewer-expanded .viewport-tools{display:flex;left:max(14px,env(safe-area-inset-left));right:max(14px,env(safe-area-inset-right));bottom:max(10px,env(safe-area-inset-bottom))}.viewer-expanded .viewport-tools>span{display:none}.viewer-expanded .mobile-tool-guide{z-index:110;top:70px;max-height:calc(100dvh - 85px)}.viewer-expanded .layout-tooltip,.viewer-expanded .mobile-tooltip{z-index:120}.viewer-expanded .viewer-status{top:60px}.viewer-expanded .tour-panel{bottom:calc(70px + env(safe-area-inset-bottom))}.viewer-expanded .site-modal{z-index:130}
@media(max-width:1150px){.viewer-heading{top:74px;right:20px}.viewer canvas{top:170px;height:calc(100% - 280px)}.viewer.touring canvas{height:calc(100% - 365px)}.viewer-heading h2{font-size:23px}}
@media(max-width:850px){.tour-entry{margin:14px 16px;align-items:flex-start;flex-wrap:wrap;padding:14px}.tour-entry-actions{width:100%}.tour-entry-actions #startTour{flex:1}.viewer-actions{left:14px;right:14px;justify-content:flex-end}.viewer-actions #viewerTour{margin-right:auto}.tour-panel{bottom:16px;left:12px;right:12px}.viewer-expanded .tour-panel{bottom:calc(70px + env(safe-area-inset-bottom))}.viewer.touring canvas{height:calc(100% - 355px)}}
@media(max-width:380px){.viewer-actions button{font-size:11px;padding:7px}.viewer-actions .mobile-info{width:44px;min-width:44px}.tour-controls{gap:4px}.tour-controls button{padding:7px 9px}}
@media(orientation:landscape) and (max-height:600px){.viewer-expanded .viewer-heading{top:65px;left:max(18px,env(safe-area-inset-left));right:20px}.viewer-expanded .viewer-heading .eyebrow,.viewer-expanded .viewer-heading p,.viewer-expanded .viewer-caption{display:none}.viewer-expanded .viewer-heading h2{font-size:18px;margin:0}.viewer-expanded .viewer canvas{top:92px;height:calc(100% - 154px)}.viewer-expanded .viewer.touring canvas{top:70px;left:0;width:50%;height:calc(100% - 135px)}.viewer-expanded .tour-panel{left:auto;right:max(14px,env(safe-area-inset-right));bottom:70px;width:46%;padding:10px;max-height:calc(100dvh - 140px);overflow:auto}.viewer-expanded .tour-copy p{font-size:12px;margin:4px 0}.viewer-expanded .tour-copy strong{font-size:12px}.viewer-expanded .tour-controls{flex-wrap:wrap;margin-top:6px}.viewer-expanded .tour-controls button{padding:6px 9px}.viewer-expanded .viewer-status{left:18px;right:auto;top:49px}}

.viewer-expanded #go3d-network-bar{display:none!important}

.mobile-tooltip{position:fixed;pointer-events:none}