:root{--bg:#f0f4fb;--surface:#fff;--ink:#20304b;--muted:#6b7c94;--line:#e0e7f0;--accent:#376bea;--accent-soft:#edf2ff;--font: -apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Menlo,monospace;color-scheme:light;font-family:var(--font);color:var(--ink);font-size:16px}
*{box-sizing:border-box}body{margin:0;background:var(--bg)}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}button,a,input{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:2px solid var(--accent)}button{color:inherit}button,input{touch-action:manipulation}a{color:inherit}h1,h2,h3,p{margin:0}button{border:0}button[hidden],[hidden]{display:none!important}.eyebrow{display:block;font-family:var(--mono);font-size:.65rem;letter-spacing:.15em;font-weight:500;color:var(--muted)}
.app-header{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 34px;background:var(--surface);border-bottom:1px solid var(--line);gap:24px}.wordmark{display:flex;gap:11px;align-items:center;font-size:1.1rem;font-weight:600;text-decoration:none;letter-spacing:-.04em}.wordmark-divider{color:#b6c0c7;margin:0 14px;font-weight:400}.wordmark-context{font-size:.86rem;font-weight:400;letter-spacing:-.01em;color:var(--muted)}.tabs{display:flex;gap:4px;align-items:center;background:#f2f4f6;padding:4px;border-radius:9px}.tabs button{display:flex;align-items:center;justify-content:center;gap:8px;background:transparent;border-radius:6px;min-height:38px;padding:0 18px;font-size:.84rem;color:#7a8590;transition:background .2s,color .2s}.tabs button[aria-selected=true]{background:#fff;color:var(--ink);box-shadow:0 1px 3px #26344309}.tab-symbol{font-size:1.08rem;font-weight:400}.quiet-button{display:flex;gap:8px;align-items:center;background:transparent;font-size:.8rem;color:var(--muted)}.tutorial-launch>span:first-child{display:grid;place-items:center;width:21px;height:21px;border:1px solid #c3ccd3;border-radius:50%;font-size:.72rem}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 304px;min-height:680px;height:calc(100dvh - 127px);max-height:1050px}.viewer{position:relative;min-width:0;overflow:hidden;background:var(--bg)}.viewer-heading{position:absolute;top:35px;left:40px;z-index:2;pointer-events:none}.viewer-heading h1{font-size:2.4rem;letter-spacing:-.055em;line-height:1.12;margin:12px 0 11px;font-weight:500}.viewer-heading p{font-size:.8rem;color:var(--muted);max-width:390px;line-height:1.6}.view-mode{position:absolute;top:37px;right:32px;z-index:3;display:flex;align-items:center;gap:7px;color:#7b8792;font-family:var(--mono);font-size:.63rem;letter-spacing:.015em}.mode-dot{width:5px;height:5px;border-radius:50%;background:#91a7ab}.demo-mark{background:#e8eff0;padding:5px 7px;border-radius:4px;font-family:var(--font)}#canvas-host{position:absolute;inset:0}#scene-canvas{width:100%;height:100%;display:block;touch-action:none}#scene-labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.scene-label{position:absolute;padding:7px 10px;background:#ffffffed;border:1px solid #e2e8ed;border-radius:5px;color:#50616d;font-size:.73rem;white-space:nowrap;transform:translate(-50%,-50%);box-shadow:0 3px 12px #29323c05;pointer-events:auto;transition:opacity .18s}.scene-label::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--layer-color,#9caeb6);margin-right:7px;vertical-align:2px}.scene-label[aria-pressed=true]{border-color:var(--layer-color);color:var(--ink)}.scene-label:hover{background:#fff}.render-error{position:absolute;inset:30%;display:grid;place-items:center;text-align:center;background:#fff;padding:24px;border:1px solid var(--line);border-radius:8px;font-size:.9rem}
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.inspector{background:#ffffffee;border-left:1px solid var(--line);padding:32px 24px 18px;display:flex;flex-direction:column;overflow:auto;position:relative;z-index:4}.inspector-top{display:flex;align-items:center;justify-content:space-between}.inspector h2{font-size:1.1rem;letter-spacing:-.025em;font-weight:500;margin:10px 0 22px}.mobile-panel-toggle{display:none}#panel-body{flex:1}.layer-list{display:flex;flex-direction:column;gap:6px}.layer-row{display:grid;grid-template-columns:1fr 32px;align-items:center;min-height:45px;border-radius:6px;transition:background .2s;background:transparent}.layer-row.selected{background:#f3f6f7}.layer-row:hover{background:#f6f8f9}.layer-select{display:flex;gap:12px;align-items:center;background:transparent;padding:12px 8px;text-align:left;font-size:.8rem;min-width:0}.layer-swatch{width:16px;height:16px;border-radius:4px;flex-shrink:0;background:var(--layer-color);box-shadow:inset 0 0 0 1px #59656d0a}.layer-row input[type=checkbox]{appearance:none;width:15px;height:15px;border:1px solid #cbd5db;border-radius:3px;cursor:pointer;margin:0;display:grid;place-items:center;justify-self:center}.layer-row input:checked{border-color:#8fa6ac;background:#eaf1f2}.layer-row input:checked::after{content:"✓";font-size:11px;color:#557e88}.control-block{border-top:1px solid var(--line);padding-top:21px;margin-top:23px}.control-label{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:.77rem;margin-bottom:15px}.control-label output{font-family:var(--mono);color:#87949e;font-size:.66rem}input[type=range]{appearance:none;background:transparent;height:18px;width:100%;padding:0;margin:0;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:3px;background:#dce5e9;border-radius:2px}input[type=range]::-webkit-slider-thumb{appearance:none;margin-top:-5px;height:13px;width:13px;border-radius:50%;background:#668e99;box-shadow:0 1px 4px #365e6820;border:2px solid white}input[type=range]::-moz-range-track{height:3px;background:#dce5e9;border-radius:2px}input[type=range]::-moz-range-thumb{height:10px;width:10px;border-radius:50%;background:#668e99;border:2px solid white}.range-ends{display:flex;justify-content:space-between;font-size:.62rem;color:#9aa7b1;margin-top:6px}.switch-row{display:grid;grid-template-columns:1fr 1px 28px;align-items:center;font-size:.77rem;gap:5px;margin-top:20px;cursor:pointer;position:relative}.switch-row input{opacity:0;width:1px;height:1px;position:absolute;right:15px;top:8px}.switch{width:27px;height:15px;border-radius:8px;background:#d8e0e5;position:relative;grid-column:3;transition:background .2s}.switch::after{content:"";position:absolute;width:11px;height:11px;background:white;border-radius:50%;top:2px;left:2px;transition:transform .2s}.switch-row input:checked+.switch{background:#6b959c}.switch-row input:checked+.switch::after{transform:translateX(12px)}.switch-row input:focus-visible+.switch{outline:2px solid var(--accent);outline-offset:4px}.selection-detail{border-top:1px solid var(--line);margin-top:25px;padding-top:23px;padding-bottom:16px}.selection-detail .eyebrow{font-size:.6rem}.selection-detail h3{font-size:.96rem;letter-spacing:-.025em;margin-top:10px;margin-bottom:9px;font-weight:500}.selection-detail p{font-size:.77rem;color:#7c8994;line-height:1.65}.selection-meta{font-size:.68rem;margin-top:14px;color:#89949d;display:grid;grid-template-columns:1fr 1fr;gap:8px}.selection-meta strong{font-weight:400;color:#4f616e}.text-button{background:transparent;color:#668590;padding:9px 0;font-size:.72rem;text-decoration:underline;text-underline-offset:4px;text-decoration-color:#c2d0d6}.inspector-bottom{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}.sources-button{display:flex;align-items:center;gap:9px;width:100%;background:transparent;font-size:.74rem;text-align:left;padding:5px 0}.sources-button>span:last-child{margin-left:auto;color:#a6b2ba}.sources-icon{font-size:1.25rem;color:#97a9b3}.provenance-line{font-size:.6rem;line-height:1.7;display:block;color:#9aa6af;margin-top:10px}.app-footer{height:45px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 34px;border-top:1px solid var(--line);font-size:.61rem;color:#99a4ad;background:#fafbfc}.footer-separator{margin:0 8px}
.primary-button,.secondary-button{display:flex;align-items:center;justify-content:center;padding:11px 15px;min-height:39px;border-radius:5px;font-size:.78rem;transition:background .2s;width:100%}.primary-button{background:#4d7881;color:#fff}.primary-button:hover{background:#3d6570}.secondary-button{background:#f1f4f6;color:#6e808c}.secondary-button:hover{background:#e7eef1}.connection-status{display:flex;align-items:center;gap:9px;font-size:.74rem;color:#7c8e98;line-height:1.5;margin:0 0 18px}.status-mark{color:#88a4ad;font-size:1.2rem}.gate-actions{margin-top:24px;border-left:2px solid #c7b080;padding:3px 0 3px 13px}.gate-actions .eyebrow{font-size:.59rem;color:#a08b65}.gate-actions p{font-size:.72rem;line-height:1.5;margin:10px 0 13px;color:#7f8c97}.gate-actions>div{display:grid;grid-template-columns:1fr .65fr;gap:7px}.gate-actions .primary-button,.gate-actions .secondary-button{padding:9px 8px;font-size:.71rem}#pause-signal{margin-top:17px}.small-note{font-size:.68rem;color:#8e9ba6;line-height:1.7;margin-top:20px}.panel-intro{font-size:.76rem;line-height:1.6;color:#83909c;margin-bottom:17px}.cell-list{display:grid;grid-template-columns:1fr 1fr;gap:6px}.cell-button{background:#f5f7f9;padding:12px 8px;border-radius:5px;text-align:left;font-size:.76rem;display:flex;align-items:center;gap:9px;border:1px solid transparent}.cell-button[aria-pressed=true]{background:#ebf2f2;border-color:#b8cbd0}.cell-glyph{color:#8eaaaf;font-size:.9rem}.data-badge{display:inline-block;font-family:var(--mono);color:#90a0aa;font-size:.61rem;margin-top:15px}
dialog{border:1px solid #e3e8ed;border-radius:12px;padding:30px;color:var(--ink);box-shadow:0 20px 100px #263c4b15;max-height:calc(100dvh - 40px);overflow:auto;background:#fff}dialog::backdrop{background:#c8d3dd40;backdrop-filter:blur(5px)}.tutorial-dialog{width:370px;text-align:center}.dialog-close{position:absolute;right:15px;top:13px}.tutorial-visual{position:relative;height:150px;display:grid;place-items:center;margin:25px 0 14px}.tutorial-cube{width:83px;height:83px;transform:rotate(-30deg) skew(15deg);position:relative}.tutorial-cube>span{position:absolute;inset:0;border-radius:7px;background:#d5e4e8a0;border:1px solid #a8c4cf;transform:translateY(0);transition:transform .5s,opacity .5s}.tutorial-cube>span:first-child{transform:translate(-10px,-10px)}.tutorial-cube>span:last-child{transform:translate(10px,10px)}.tutorial-arrow{position:absolute;right:70px;bottom:5px;font-size:2.2rem;color:#8cabb7}.tutorial-dialog[data-step="1"] .tutorial-cube>span:nth-child(2){opacity:.2}.tutorial-dialog[data-step="1"] .tutorial-arrow{transform:rotate(-35deg)}.tutorial-dialog[data-step="2"] .tutorial-cube>span:first-child{transform:translate(-25px,-25px)}.tutorial-dialog[data-step="2"] .tutorial-cube>span:last-child{transform:translate(25px,25px)}.tutorial-dialog h2{font-size:1.5rem;letter-spacing:-.035em;font-weight:500}.tutorial-dialog p{font-size:.82rem;line-height:1.7;color:#88959f;margin-top:11px}.tutorial-progress{display:flex;gap:6px;justify-content:center;margin:25px 0}.tutorial-progress span{width:17px;height:3px;background:#e3eaee;border-radius:2px}.tutorial-progress .current{background:#8aabb7}.tutorial-bottom{display:flex;align-items:center;justify-content:space-between}.tutorial-bottom .primary-button{width:auto;min-width:82px}.sources-dialog{width:min(650px,calc(100% - 32px))}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.dialog-heading h2{font-size:1.55rem;font-weight:500;letter-spacing:-.04em;margin-top:11px}.sources-dialog>p{font-size:.84rem;color:#7b8994;line-height:1.7}.source-key{display:flex;gap:20px;flex-wrap:wrap;font-size:.7rem;color:#7c8e98;padding:22px 0;border-bottom:1px solid var(--line)}.source-key span{display:flex;align-items:center;gap:7px}.source-dot,.illustration-dot{width:7px;height:7px;display:inline-block;border-radius:50%;background:#79a7a6}.illustration-dot{background:#c6d1d9}.source-item{padding:17px 0;border-bottom:1px solid var(--line)}.source-item h3{font-size:.83rem;font-weight:500;margin-bottom:7px}.source-item p{font-size:.74rem;line-height:1.6;color:#87939c}.source-file{font-family:var(--mono);font-size:.6rem;word-break:break-word;color:#889da7;margin-top:9px;display:block;text-decoration:none}.sources-boundary{padding-top:20px}.sources-boundary strong{font-size:.8rem;font-weight:500}.sources-boundary p{font-size:.74rem;color:#87939c;line-height:1.7;margin-top:9px}
@media(min-width:1500px){.workspace{grid-template-columns:minmax(0,1fr) 336px}.inspector{padding:35px 30px}.viewer-heading{top:44px;left:56px}.orbit-tools{left:50px}.viewer-note{left:56px}}
@media(max-width:1150px){.app-header{padding:0 22px;gap:12px}.tabs button{padding:0 13px}.viewer-heading{left:28px;top:28px}.viewer-heading h1{font-size:2rem}.view-mode{top:auto;right:auto;left:28px;bottom:145px}.workspace{grid-template-columns:minmax(0,1fr) 280px}.inspector{padding:27px 20px 18px}.zoom-dock{left:auto;right:25px;transform:none;width:165px}.orbit-tools{left:24px}.viewer-note{left:28px}.viewer-heading p{max-width:265px}}
@media(max-width:780px){.app-header{height:auto;min-height:120px;flex-wrap:wrap;padding:18px 20px 12px;gap:15px}.wordmark{font-size:1rem}.wordmark-context{font-size:.8rem}.wordmark-divider{margin:0 10px}.tutorial-launch{margin-left:auto}.tabs{order:3;width:100%;justify-content:space-between;gap:2px}.tabs button{flex:1;padding:0 10px;min-height:37px}.workspace{display:block;height:auto;max-height:none;min-height:0}.viewer{height:590px;min-height:420px}.viewer-heading{top:27px;left:25px}.viewer-heading h1{font-size:2.15rem}.viewer-heading p{max-width:none;font-size:.75rem}.inspector{border-left:0;border-top:1px solid var(--line);padding:24px}.inspector h2{margin-bottom:0}.inspector-top{margin-bottom:20px}.mobile-panel-toggle{display:grid}.layer-list{display:grid;grid-template-columns:1fr 1fr;gap:6px}.layer-select{font-size:.75rem;gap:8px}.layer-row{grid-template-columns:1fr 26px}.layer-swatch{width:13px;height:13px}.control-block{margin-top:23px}.switch-row{max-width:280px}.selection-detail{margin-top:22px;padding-top:22px}.inspector-bottom{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:10px;padding-top:16px}.sources-button{width:auto;gap:8px}.sources-button>span:last-child{margin-left:4px}.provenance-line{margin:0;max-width:140px}.app-footer{height:auto;min-height:60px;flex-direction:column;justify-content:center;gap:7px;align-items:flex-start;padding:14px 24px;font-size:.6rem}.zoom-dock{width:175px;bottom:25px;right:25px}.orbit-tools{bottom:23px;left:24px}.viewer-note{bottom:90px;left:26px}.view-mode{bottom:122px;left:26px}.connection-status{margin-top:5px}.cell-list{grid-template-columns:repeat(4,1fr)}}
@media(max-width:420px){.viewer{height:505px}.app-header{padding:16px 15px 11px}.tutorial-launch>span:last-child{display:none}.tabs button{font-size:.76rem;padding:0 6px;gap:6px}.viewer-heading{left:22px;top:25px}.viewer-heading h1{font-size:1.85rem}.viewer-heading p{font-size:.7rem;max-width:245px}.viewer-heading .eyebrow{font-size:.6rem}.orbit-tools{left:20px;gap:0;padding:2px}.orbit-tools .icon-button{width:29px;height:32px}.orbit-tools>span{margin:0 2px}.zoom-dock{right:18px;width:130px;column-gap:8px;grid-template-columns:1fr 28px}.zoom-dock label{font-size:.56rem;gap:5px}.zoom-value{font-size:.58rem}.inspector{padding:22px 18px}.layer-select{padding:12px 6px;font-size:.7rem;gap:7px}.layer-row{grid-template-columns:1fr 24px}.cell-list{grid-template-columns:repeat(3,1fr)}.scene-label{font-size:.63rem;padding:6px 8px}.viewer-note{font-size:.61rem}.view-mode{font-size:.59rem}.provenance-line{font-size:.56rem}.app-footer{padding:14px 18px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* Controls stay legible; secondary labels are never below 12px. */
.workspace{min-height:560px}
.visibility-toggle{display:grid;place-items:center;width:32px;height:44px;cursor:pointer}.demo-action{display:grid;grid-template-columns:64px 1fr;gap:8px 10px;font-size:.75rem;line-height:1.4;margin:0 0 18px}.demo-action dt{color:#8d9ca6}.demo-action dd{margin:0;color:#5e717d}
.eyebrow,.provenance-line,.range-ends,.viewer-note,.view-mode,.zoom-dock label,.zoom-value,.app-footer,.data-badge,.source-file,.selection-detail .eyebrow,.gate-actions .eyebrow{font-size:.75rem}
.tabs button,.layer-select,.control-label,.switch-row,.primary-button,.secondary-button,.cell-button,.sources-button,.selection-detail p,.panel-intro,.small-note,.connection-status{font-size:.875rem}
.scene-label{font-size:.75rem}.viewer-heading p{font-size:.875rem}.gate-actions .primary-button,.gate-actions .secondary-button{font-size:.8125rem}
@media(max-width:1150px){.view-mode{bottom:144px}}
@media(max-width:780px){.view-mode{bottom:122px}.layer-list{grid-template-columns:1fr 1fr}.layer-select{font-size:.8125rem}.viewer-heading p{font-size:.8125rem}.app-footer{font-size:.75rem}.provenance-line{font-size:.75rem;max-width:180px}.zoom-dock{width:180px}.cell-list{grid-template-columns:repeat(4,1fr)}}
@media(max-width:420px){.view-mode{font-size:.75rem}.zoom-dock{width:128px}.zoom-dock label{font-size:.75rem}.zoom-value{font-size:.75rem}.orbit-tools .icon-button{width:27px}.layer-select{font-size:.8125rem}.layer-list{grid-template-columns:1fr}.tabs button{font-size:.8125rem}.eyebrow{font-size:.75rem}.viewer-heading .eyebrow{font-size:.75rem}.provenance-line{max-width:145px}.cell-list{grid-template-columns:repeat(3,1fr)}.viewer-heading p{max-width:290px}}
@media(pointer:coarse){.icon-button{width:44px;height:44px}.visibility-toggle{width:44px;height:44px}.layer-row{grid-template-columns:1fr 44px}.layer-select{min-height:44px}.tabs button{min-height:44px}input[type=range]{height:32px}.cell-button{min-height:44px}}
@media(max-width:780px) and (pointer:coarse){.orbit-tools{left:24px;bottom:20px}.orbit-tools .icon-button{width:42px;height:42px}.zoom-dock{left:26px;right:26px;bottom:82px;width:auto;grid-template-columns:1fr 40px}.viewer-note{bottom:149px}.view-mode{bottom:179px}}
.provenance-line,.range-ends,.app-footer,.data-badge{color:#778995}.viewer-note{color:#7d919f}.eyebrow{color:#71818e}.source-file{color:#728998}
.layer-swatch{box-shadow:inset 0 1px 2px #ffffff85,inset 0 -2px 3px #132f4b15,0 2px 4px #25487318}.layer-row.selected{background:var(--accent-soft)}.tabs button[aria-selected=true]{color:#275ecf}.primary-button{background:#376bea}.primary-button:hover{background:#2559d2}.switch-row input:checked+.switch{background:#376bea}input[type=range]::-webkit-slider-thumb{background:#376bea}input[type=range]::-moz-range-thumb{background:#376bea}.scene-label{box-shadow:0 3px 12px #29487312}.scene-label::before{width:7px;height:7px;box-shadow:0 0 8px color-mix(in srgb,var(--layer-color) 40%,transparent)}
@media(max-width:780px){.viewer{position:sticky;top:0;height:clamp(375px,55svh,505px);min-height:375px;z-index:2}.viewer-heading{top:20px;left:24px}.viewer-heading h1{font-size:1.65rem;margin-top:9px}.viewer-heading p{display:none}.inspector{position:relative;z-index:1}.viewer-heading .eyebrow{font-size:.75rem}}