:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#25313b;background:#f8fafb;font-synthesis:none;--muted:#667480;--line:#e2e7ea;--accent:#bd5b2a;--panel:#fff;--radius:10px}*{box-sizing:border-box}body{margin:0}button,a,input{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}button{border:0;background:none}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:3px solid #bd5b2a;outline-offset:4px}button:hover{color:var(--accent)}[hidden]{display:none!important}.app-header{height:76px;display:flex;align-items:center;padding:0 32px;border-bottom:1px solid var(--line);background:#fff;gap:24px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:#25313b;font-size:26px;font-weight:650;letter-spacing:-1px}.brand svg{width:30px;height:30px;fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linejoin:round}.brand-dot{color:var(--accent)}.header-divider{width:1px;height:20px;background:var(--line)}.header-context{font-size:14px;color:#65727e}.edition{margin-left:auto;font-size:11px;letter-spacing:1.4px;color:#73808b}.edition span{margin-left:10px;color:#344451;background:#f1f4f6;padding:5px 7px;border-radius:4px;font-variant-numeric:tabular-nums}.workspace{display:grid;grid-template-columns:284px minmax(0,1fr);height:calc(100dvh - 76px);min-height:650px}.sidebar{background:#fff;border-right:1px solid var(--line);padding:31px 23px 20px;display:flex;flex-direction:column;overflow-y:auto;z-index:2}.eyebrow{font-size:11px;font-weight:600;letter-spacing:1.6px;color:#71808b}.eyebrow span{color:#a5aeb5;margin-left:8px}h1{font-size:34px;line-height:1.12;letter-spacing:-1.3px;font-weight:600;margin:20px 0 11px}.model-heading p{font-size:14px;color:var(--muted);margin:0}.list-heading{margin:34px 0 13px;display:flex;justify-content:space-between;align-items:center}.list-heading h2{font-size:13px;margin:0;font-weight:650}.list-heading>span{font-size:12px;color:#72818c;font-variant-numeric:tabular-nums}.parts-list{display:flex;flex-direction:column;gap:3px}.part-button{display:flex;align-items:center;text-align:left;width:100%;padding:10px 9px;gap:11px;border-radius:7px;font-size:14px;min-height:39px;transition:background .15s,color .15s}.part-button:hover{background:#f3f5f6}.part-button[aria-pressed=true]{background:#fbede4;color:#8e431e}.part-swatch{height:9px;width:9px;border-radius:2px;background:var(--part-color);flex-shrink:0}.part-number{margin-left:auto;font-size:11px;color:#8b959e;font-variant-numeric:tabular-nums}.part-button[aria-pressed=true] .part-number{color:#8e431e}.part-detail{margin-top:24px;padding-top:23px;border-top:1px solid var(--line)}.detail-kicker{font-size:10px;letter-spacing:1.3px;font-weight:600;color:#7a8892}.part-detail h2{font-size:17px;font-weight:600;margin:10px 0}.part-detail p{font-size:14px;line-height:1.65;color:#667480;margin:0}.material-row{display:flex;justify-content:space-between;gap:12px;font-size:12px;margin-top:15px}.material-row>span{color:#75818a}.material-row strong{font-weight:500;text-align:right}.clear-selection{display:flex;justify-content:space-between;padding:12px 0 0;width:100%;font-size:12px;color:#9d4d25}.clear-selection span{font-size:18px;line-height:12px}.schematic-note{font-size:11px;line-height:1.6;color:#7d8890;margin: auto 0 0;padding-top:26px}.viewer{position:relative;background:#edf1f4;overflow:hidden;isolation:isolate;min-width:0}#canvas-container{position:absolute;inset:0 0 86px;outline:0}canvas{display:block;width:100%;height:100%;touch-action:none}.viewer-heading{position:absolute;top:27px;left:28px;pointer-events:none;display:flex;gap:11px;align-items:center;font-size:12px}.view-tag{font-weight:600;display:flex;align-items:center;gap:7px}.mini-cube{font-size:21px;line-height:14px;color:#7a8c98}.view-caption{border-left:1px solid #cbd4dc;padding-left:11px;color:#697a88}.view-options{position:absolute;right:27px;top:20px;display:flex;gap:7px}.option-button{display:flex;align-items:center;justify-content:center;gap:7px;font-size:12px;min-height:36px;padding:8px 11px;border:1px solid #d7dfe5;border-radius:7px;background:#f7f9fa}.option-button[aria-pressed=true]{background:#fff;border-color:#b8c4ce;color:#344955}.option-button svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.3;stroke-linejoin:round}.viewport-toolbar{position:absolute;right:27px;top:42%;display:flex;flex-direction:column;padding:4px;background:#fff;border:1px solid #dce3e8;border-radius:10px}.viewport-toolbar button{height:39px;width:39px;border-radius:6px;display:grid;place-items:center}.viewport-toolbar button:hover{background:#f5f6f7}.viewport-toolbar svg{height:18px;width:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.tool-separator{height:1px;background:var(--line);margin:3px 6px}.axis-key{position:absolute;left:28px;bottom:202px;width:58px;height:54px;pointer-events:none;font-size:10px;font-weight:600}.axis-key svg{width:58px;height:54px;stroke-width:1.4;fill:none}.axis-y{position:absolute;left:25px;top:-8px;color:#49755e}.axis-z{position:absolute;left:0;bottom:0;color:#547693}.axis-x{position:absolute;right:0;bottom:0;color:#a7614e}.explosion-panel{position:absolute;left:50%;bottom:68px;transform:translateX(-50%);width:min(490px,calc(100% - 60px));background:#fff;border-radius:12px;padding:20px 23px 14px;box-shadow:0 10px 30px #2a425012}.explosion-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px;gap:16px}.explosion-header>label{font-size:14px;font-weight:600}.explosion-actions{display:flex;align-items:center;gap:16px}output{font-size:18px;font-weight:500;font-variant-numeric:tabular-nums;min-width:43px;text-align:right}output span{font-size:12px;color:#7a858f;margin-left:2px}#assembly-toggle{border-left:1px solid var(--line);display:flex;align-items:center;gap:6px;padding:0 0 0 14px;font-size:12px;color:#a64e22;min-width:80px}#assembly-toggle svg{height:17px;width:17px;fill:none;stroke:currentColor;stroke-width:1.4}input[type=range]{display:block;width:100%;appearance:none;-webkit-appearance:none;height:5px;border-radius:5px;background:linear-gradient(to right,#bd5b2a 55%,#e4e9ec 55%);cursor:pointer;margin:0;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;width:17px;height:17px;border-radius:50%;background:#fff;border:4px solid #bd5b2a;box-shadow:0 1px 4px #0002}input[type=range]::-moz-range-thumb{width:10px;height:10px;border-radius:50%;background:#fff;border:4px solid #bd5b2a}.range-endpoints{display:flex;justify-content:space-between;margin-top:12px}.range-endpoints button{padding:3px 0;font-size:11px;color:#78848d}.range-endpoints button:hover{color:var(--accent)}.viewer-footer{position:absolute;bottom:0;left:0;width:100%;height:46px;display:flex;align-items:center;justify-content:space-between;padding:0 27px;border-top:1px solid #dbe3e9;font-size:11px;color:#6d7c88;gap:12px}.viewer-footer>span:first-child{display:flex;align-items:center;gap:8px}.viewer-footer svg{width:12px;height:16px;fill:none;stroke:currentColor;stroke-width:1.1}.viewer-footer span span span{margin:0 7px;color:#adb7bf}.model-type{font-size:9px;letter-spacing:1.2px;white-space:nowrap}.touch-hint{display:none}.labels{position:absolute;inset:0 0 86px;pointer-events:none;overflow:hidden}.model-label{position:absolute;left:0;top:0;display:flex;align-items:center;gap:8px;padding:6px 9px;border:1px solid #d4dde5;border-radius:5px;background:#ffffffec;color:#506473;font-size:11px;line-height:16px;white-space:nowrap;pointer-events:auto;transform:translate(-50%,-50%)}.model-label::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--part-color)}.model-label:hover,.model-label.active{color:#914822;border-color:#c8835f;background:#fff6ef}.loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:13px;background:#edf1f4;font-size:14px;color:#687b87;z-index:4}.loading-spinner{width:20px;height:20px;border:2px solid #c7d2da;border-top-color:#bd5b2a;border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.viewer-error{position:absolute;top:45%;left:50%;transform:translate(-50%,-50%);text-align:center;width:80%;z-index:5}.viewer-error h2{font-size:20px}.viewer-error p{font-size:14px;color:#667480}.viewer-error button{background:#25313b;color:white;padding:10px 18px;border-radius:6px}.viewer[data-failed=true] .explosion-panel,.viewer[data-failed=true] .view-options,.viewer[data-failed=true] .viewport-toolbar{display:none}@media(min-height:850px){.sidebar{padding-top:38px}.list-heading{margin-top:43px}.part-button{min-height:43px}.part-detail{margin-top:32px}}@media(max-width:1050px){.workspace{grid-template-columns:245px minmax(0,1fr)}.sidebar{padding-left:19px;padding-right:19px}.view-caption{display:none}.model-type{display:none}.viewer-heading{left:20px}.view-options{right:20px}.viewport-toolbar{right:20px}h1{font-size:31px}.explosion-panel{bottom:65px}.viewer-footer{padding:0 20px}}@media(max-width:720px){.app-header{height:64px;padding:0 18px;gap:15px}.brand{font-size:23px}.brand svg{width:25px}.header-context{font-size:12px}.edition{display:none}.workspace{display:flex;flex-direction:column;height:auto;min-height:0}.viewer{order:0;height:calc(100dvh - 64px);min-height:550px;max-height:850px}.sidebar{order:1;border-right:0;border-top:1px solid var(--line);padding:26px 22px;overflow:visible;display:grid;grid-template-columns:1fr 1fr;gap:20px}.model-heading{grid-column:1/-1}.model-heading h1{font-size:28px;margin:9px 0}.model-heading h1 br{display:none}.model-heading h1 br:after{content:" "}.model-heading h1{max-width:none}.list-heading{grid-column:1;margin:5px 0 -8px}.parts-list{grid-column:1;grid-row:3}.part-detail{grid-column:2;grid-row:3;margin:0;padding:10px 0 0;border:0}.schematic-note{grid-column:1/-1;padding:0;margin:0}.part-button{font-size:13px;padding:10px 6px;gap:8px}.part-number{display:none}.view-options{top:17px;right:15px}.viewer-heading{top:25px;left:17px}.view-tag{font-size:11px}.option-button{font-size:11px;padding:8px;gap:5px}.option-button svg{width:14px}.viewport-toolbar{right:15px;top:37%}.viewport-toolbar button{width:34px;height:37px}.axis-key{left:20px;bottom:210px}.explosion-panel{width:calc(100% - 34px);bottom:65px;padding:19px 21px 14px}.viewer-footer{padding:0 15px;justify-content:center;font-size:10px}.desktop-hint{display:none}.touch-hint{display:inline}.viewer-footer span span span{margin:0 4px}.model-label{font-size:10px;padding:4px 7px}.eyebrow{font-size:10px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media(pointer:coarse){.desktop-hint{display:none}.touch-hint{display:inline}.range-endpoints button{padding:8px 0}input[type=range]{height:8px}input[type=range]::-webkit-slider-thumb{width:24px;height:24px}}

/* The yard and the equipment inspector share the same workbench. */
.sidebar-back{display:flex;align-items:center;gap:9px;text-align:left;color:#876045;font-size:12px;padding:0 0 22px}.sidebar-back span{font-size:18px}.model-heading h1{font-size:31px;line-height:1.13;letter-spacing:-1px}.equipment-button{min-height:55px;padding:10px 8px;gap:11px}.equipment-code{font-size:11px;font-weight:600;letter-spacing:.3px;width:31px;height:31px;display:grid;place-items:center;border-radius:6px;background:#edf1f3;color:#607580;flex-shrink:0}.equipment-text{display:flex;flex-direction:column;gap:4px}.equipment-name{font-size:13px}.equipment-count{font-size:11px;color:#7c8993}.equipment-arrow{margin-left:auto;color:#94a0a9;font-size:15px}.equipment-button:hover .equipment-code{background:#f4e7dc;color:#9b522e}.equipment-button.is-hovered{background:#fbede4;color:#85431f}.back-to-yard{padding:3px 0;font-size:12px;display:flex;gap:8px;align-items:center;pointer-events:auto;color:#795537}.back-to-yard span{font-size:17px}.phase-selector{position:absolute;top:71px;left:28px;display:flex;align-items:center;gap:5px;font-size:11px}.phase-selector>span{color:#6f808c;margin-right:5px}.phase-selector button{width:30px;height:29px;border:1px solid #d4dee5;border-radius:5px;font-size:11px;background:#f6f8fa}.phase-selector button[aria-pressed=true]{color:#95502e;background:#fff0e6;border-color:#d6af94}.equipment-picker-row{display:flex;align-items:center;gap:14px;justify-content:space-between}.equipment-picker-row>label{font-size:12px;color:#75828c;flex-shrink:0}.equipment-picker-row select{font:inherit;font-size:13px;font-weight:550;border:1px solid #dce3e8;border-radius:6px;background:#f8fafb;color:#354751;padding:8px 30px 8px 10px;max-width:235px;min-width:0;cursor:pointer}.equipment-picker-row select:focus-visible{outline:3px solid #bd5b2a;outline-offset:3px}.yard-instruction{font-size:12px;color:#697a86;line-height:1.5;margin:12px 0 2px}#explosion-controls{margin-top:18px;border-top:1px solid #edf0f2;padding-top:15px}.explosion-panel{width:min(490px,calc(100% - 60px));padding-top:16px}body[data-mode=detail] .axis-key{bottom:249px}.model-label.yard-label{font-size:11px;padding:7px 9px;gap:8px;background:#fff;box-shadow:0 3px 9px #233b4810;border-color:#d9e0e5}.yard-label .label-code{font-weight:650;color:#95613f;font-size:10px}.yard-label::before{display:none}.yard-label .label-arrow{color:#94a1aa;font-size:13px;margin-left:2px}.model-label.yard-label:hover{background:#fff7ef;box-shadow:0 4px 14px #233b4820}.part-button{font-size:13px}.list-heading{margin-top:28px}.part-detail{margin-top:23px}.schematic-note{white-space:pre-line;font-size:11px}.phase-selector button:hover{background:#fff}.viewer[data-failed=true] #navigation-panel{display:none}
@media(max-width:1050px){.model-heading h1{font-size:28px}.phase-selector{left:20px}.equipment-button{padding:9px 4px;gap:8px}.equipment-name{font-size:12px}.equipment-code{width:28px;height:30px}.equipment-arrow{font-size:12px}.equipment-count{font-size:10px}}
@media(max-width:720px){.sidebar-back{grid-column:1/-1;padding:0}.model-heading h1{font-size:28px}.viewer-heading{font-size:11px}.view-tag{font-size:11px}.back-to-yard{font-size:11px}.phase-selector{top:65px;left:17px}.phase-selector button{width:33px;height:31px}.equipment-button{padding:9px 4px;min-height:54px}.equipment-name{font-size:12px}.equipment-code{width:27px}.equipment-arrow{display:none}.explosion-panel{width:calc(100% - 30px);padding:14px 17px 12px}.equipment-picker-row{gap:8px}.equipment-picker-row select{font-size:12px;padding:8px 22px 8px 8px;max-width:202px}.equipment-picker-row>label{font-size:11px}.yard-instruction{font-size:11px}.explosion-header>label{font-size:13px}#explosion-controls{margin-top:12px;padding-top:12px}.part-detail h2{font-size:16px}.part-detail p{font-size:13px}.model-label.yard-label{font-size:10px;padding:5px 7px;gap:5px}.yard-label .label-code{font-size:9px}.axis-key{bottom:215px}body[data-mode=detail] .axis-key{bottom:271px}}
@media(prefers-reduced-motion:reduce){.equipment-button{transition:none}}
.label-leaders{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.label-leaders line{stroke:#94a7b2;stroke-width:1;opacity:.7}body[data-mode=detail] .model-label{box-shadow:0 2px 8px #273d480b}
.site-views{display:flex;gap:4px;margin-left:auto;padding:4px;background:#f0f3f5;border-radius:8px}.site-views button{font-size:12px;padding:8px 13px;border-radius:6px;color:#61747f}.site-views button[aria-pressed=true]{background:#fff;color:#314957;box-shadow:0 2px 5px #1e344710}.edition{margin-left:8px}.plant-basis{margin-top:21px}.capacity-line{font-size:24px;letter-spacing:-.65px;font-weight:550;font-variant-numeric:tabular-nums}.capacity-line span{font-size:12px;letter-spacing:0;font-weight:400;color:#6f818e}.plant-basis>p{font-size:11px;color:#75848e;margin:7px 0 14px}.plant-basis details{font-size:12px}.plant-basis summary{color:#8e542e;cursor:pointer;line-height:1.5}.plant-basis dl{margin:12px 0;display:grid;gap:9px}.plant-basis dl>div{display:flex;justify-content:space-between;gap:12px;font-size:11px}.plant-basis dt{color:#75818a}.plant-basis dd{margin:0;text-align:right;font-weight:500}.design-note{font-size:11px;line-height:1.6;color:#7b6858;padding:10px;background:#f7f1eb;border-radius:6px;margin:12px 0 0}.unit-selector{position:absolute;top:66px;left:28px;display:flex;align-items:center;gap:7px;font-size:11px}.unit-selector>label{color:#687d89}.unit-selector select{font:inherit;max-width:280px;background:#fafcfd;color:#34515f;border:1px solid #cfdbe1;border-radius:5px;padding:7px 23px 7px 8px}.unit-selector button{font-size:11px;color:#955b35;padding:6px;background:#fff;border:1px solid #d7dde1;border-radius:5px}.inspect-subassembly{display:flex;justify-content:space-between;align-items:center;margin-top:15px;padding:10px 13px;border-radius:6px;background:#253e4c;color:white;width:100%;font-size:12px}.inspect-subassembly:hover{background:#385260;color:white}#plant-basis:not([hidden])~.list-heading{margin-top:23px}#plant-basis:not([hidden])~.parts-list .equipment-button{min-height:47px}.unit-selector select:focus-visible{outline:3px solid #bd5b2a;outline-offset:3px}@media(max-width:1050px){.header-context{display:none}.header-divider{display:none}.app-header{gap:12px}.unit-selector{left:20px}.unit-selector select{max-width:225px}.edition{display:none}}@media(max-width:720px){.app-header{gap:10px}.site-views{gap:1px;padding:3px}.site-views button{padding:7px 9px;font-size:11px}.brand{font-size:21px}.plant-basis{grid-column:1/-1;margin-top:0}.list-heading{grid-column:1;grid-row:auto}.parts-list{grid-row:auto}.part-detail{grid-row:auto}.plant-basis dl{max-width:360px}.capacity-line{font-size:26px}.unit-selector{top:66px;left:17px;max-width:calc(100% - 34px);flex-wrap:wrap;gap:5px}.unit-selector select{max-width:235px;font-size:10px}.unit-selector button{font-size:10px}.unit-selector>label{font-size:10px}.site-views{margin-left:auto}}

body[data-mode=detail] .model-label{display:block;max-width:210px;overflow:hidden;text-overflow:ellipsis}body[data-mode=detail] .model-label::before{display:inline-block;vertical-align:middle;margin-right:7px}@media(max-width:720px){body[data-mode=detail] .model-label{max-width:155px}.model-label.yard-label{max-width:200px}.yard-label>span:not(.label-code):not(.label-arrow){overflow:hidden;text-overflow:ellipsis}}

/* Physical motor-operator controls, alongside the existing component inspector. */
.disconnect-panel{margin-top:22px;padding:16px 0;border-block:1px solid var(--line)}
.operator-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.operator-heading h2{margin:0;font-size:15px}.operator-heading [role=status]{font-size:12px;font-weight:600;color:#465961}.operator-heading [data-state=opening],.operator-heading [data-state=closing]{color:#975022}
.operator-lamps{display:flex;gap:22px;margin:14px 0;font-size:12px}.operator-lamps span{display:flex;align-items:center;gap:7px;color:#536370}.operator-lamps i{width:10px;height:10px;border-radius:50%;background:#dde1e2;box-shadow:inset 0 1px 2px #263d4944}.operator-lamps .lit:first-child i{background:#37804d}.operator-lamps .lit:last-child i{background:#ba443a}.operator-lamps .lit{font-weight:650;color:#25313b}
.operator-mode{border:0;padding:0;margin:0;display:flex;gap:20px}.operator-mode legend{font-size:11px;color:#566771;padding:0;margin-bottom:9px}.operator-mode label{display:flex;align-items:center;gap:6px;font-size:13px;cursor:pointer;min-height:26px}.operator-mode input{accent-color:#485e6b;margin:0;width:16px;height:16px}
.operator-buttons{display:flex;gap:12px;margin-top:12px}.operator-buttons button{display:flex;align-items:center;justify-content:center;gap:10px;background:#f0f3f4;border:1px solid #d3dadd;border-radius:6px;flex:1;min-height:46px;font-size:13px;font-weight:600}.operator-buttons button:hover:enabled{background:#e7edef;color:#25313b}.physical-button{width:20px;height:20px;border:3px solid #aeb8bd;border-radius:50%;box-shadow:inset 0 1px 2px #0003,0 2px 2px #24343c22}.physical-button.open{background:#3c8654}.physical-button.close{background:#b7473b}button:disabled{cursor:default;opacity:.45}
.operator-message{font-size:12px;line-height:1.5;margin:12px 0;min-height:18px;color:#53636e}.operator-tools{display:flex;flex-wrap:wrap;gap:7px}.operator-tools button{font-size:11px;text-decoration:underline;text-underline-offset:3px;padding:5px 0;color:#694c34}.remote-test{margin-top:10px;font-size:11px;color:#5b6b76}.remote-test summary{cursor:pointer;padding:5px 0}.remote-test p{margin:6px 0}.remote-test>div{display:flex;gap:8px}.remote-test button{background:#edf1f3;border-radius:4px;padding:8px 10px}
.disconnect-focus{position:absolute;top:66px;left:28px;background:#fff;border:1px solid #d7dfe5;border-radius:6px;font-size:12px;padding:9px 12px;min-height:36px;color:#405a67}
@media(max-width:1050px){.disconnect-focus{left:20px}}
@media(max-width:720px){.disconnect-focus{left:17px;top:63px}.disconnect-panel{margin:0 0 12px;padding:0 0 12px;border-top:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}.operator-heading{grid-column:1/-1}.operator-heading h2{font-size:13px}.operator-lamps{margin:0;gap:12px;font-size:11px}.operator-mode{grid-column:1;grid-row:3;gap:14px}.operator-mode legend{display:none}.operator-buttons{grid-column:2;grid-row:2/4;margin:0;gap:7px}.operator-buttons button{flex-direction:column;gap:4px;min-height:60px;font-size:11px}.operator-message{grid-column:1/-1;margin:0;font-size:11px;min-height:16px}.operator-tools{grid-column:1/-1;justify-content:space-between}.remote-test{grid-column:1/-1;margin:0}body[data-operable=true] .disconnect-panel~.equipment-picker-row{display:none}body[data-operable=true] .axis-key{display:none}body[data-operable=true] #explosion-controls{margin-top:0;padding-top:0;border:0}body[data-operable=true] .range-endpoints{margin-top:5px}body[data-operable=true] .explosion-header{margin-bottom:10px}}

.mechanism-note{font-size:11px;line-height:1.5;color:#667480;margin:8px 0 0;grid-column:1/-1}.operator-tools #breaker-mechanism{font-weight:650}.operator-tools #breaker-mechanism[aria-pressed=true]{color:#a04c23}

.control-panel-trigger{position:absolute;z-index:4;min-height:44px;padding:10px 14px;background:#fff;border:1px solid #bdcbd3;border-radius:6px;box-shadow:0 3px 10px #273d4814;font-size:12px;font-weight:600;white-space:nowrap}.control-panel-trigger:hover{border-color:var(--accent)}.control-panel-trigger[aria-pressed=true]{color:#97451e;border-color:#bd5b2a}

.arc-dialog{width:min(680px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:22px;border:1px solid #c8d2d8;border-radius:12px;color:#25313b;box-shadow:0 18px 65px #162a3c35;overflow:auto;background:#fff}.arc-dialog::backdrop{background:#20344570}.arc-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.arc-header h2{font-size:22px;margin:0}.arc-header p{font-size:12px;color:#586774;margin:6px 0 16px}.arc-dismiss{font-size:26px;min-width:44px;min-height:44px;margin:-10px -8px 0 0}.arc-medium{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;margin-bottom:12px}.arc-medium select{font:inherit;padding:10px;border:1px solid #b8c8d1;border-radius:5px;background:#fff;color:#25313b;max-width:65%}.arc-canvas{height:320px;position:relative;border-radius:7px;overflow:hidden;background:#eaf0f3}.arc-canvas canvas{display:block;touch-action:none}.arc-key{position:absolute;top:12px;left:12px;display:grid;gap:5px;font-size:11px;color:#334c5c;pointer-events:none}.arc-medium-label{position:absolute;bottom:10px;left:12px;font-size:11px;background:#ffffffde;padding:5px 7px;border-radius:4px;pointer-events:none}.arc-explanation{min-height:114px;padding-top:16px}.arc-explanation h3{font-size:16px;margin:0 0 8px}.arc-explanation p,.arc-learn p{font-size:13px;line-height:1.6;margin:0}.arc-playback{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.arc-playback button{border:1px solid #bccbd3;border-radius:5px;min-height:44px;padding:8px 12px;font-size:12px}.arc-playback input{flex:1;min-width:110px;accent-color:#bd5b2a}.arc-scrub-label{font-size:12px}.arc-footnote{font-size:11px;line-height:1.5;color:#586774;margin:14px 0}.arc-learn{border-top:1px solid #dce3e8;padding-top:12px;font-size:13px}.arc-learn summary{cursor:pointer;min-height:28px}.arc-learn p{margin-top:8px}.arc-learn a{color:#8d411b}@media(max-width:720px){.arc-dialog{padding:16px}.arc-canvas{height:270px}.arc-explanation{min-height:142px}.view-options{gap:4px}.view-options #arc-demo-open{font-size:11px;padding:7px}.arc-medium{font-size:12px}.arc-header h2{font-size:20px}}

/* One movable instrument panel; the sidebar is only the index and description. */
.floating-controls{position:absolute;z-index:6;width:286px;max-width:calc(100% - 16px);max-height:calc(100% - 66px);background:#fff;border:1px solid #cbd5dc;border-radius:9px;box-shadow:0 7px 24px #233d491c;display:flex;flex-direction:column;font-size:12px}.controls-header{display:flex;align-items:center;flex-shrink:0;border-bottom:1px solid #e2e7ea;min-height:44px;padding:0 5px}.controls-header button{min-height:42px;min-width:36px}.controls-handle{display:flex;align-items:center;gap:7px;text-align:left;font-weight:650;flex:1;cursor:grab;touch-action:none;user-select:none}.controls-handle.dragging{cursor:grabbing}.controls-handle span{font-size:20px;color:#70838f}.controls-collapse{font-size:20px}.controls-home{font-size:19px}.controls-body{overflow:auto;overscroll-behavior:contain;padding:12px;min-height:0}.controls-navigation{display:flex;flex-wrap:wrap;gap:8px}.controls-body .view-options{position:static;display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.controls-body .option-button{font-size:11px;min-height:36px;padding:6px 8px}.controls-body .option-button svg{width:16px;height:16px}.controls-focus{display:flex;flex-wrap:wrap;gap:6px}.controls-body .disconnect-focus,.controls-body .control-panel-trigger,.controls-body .inspect-subassembly,.controls-body .clear-selection{position:static;transform:none;margin:0;min-height:36px;padding:7px 9px;font-size:11px;box-shadow:none;border:1px solid #d5dfe5;border-radius:5px}.controls-body .unit-selector,.controls-body .phase-selector{position:static;transform:none;margin:0;flex-wrap:wrap}.controls-body .unit-selector select{max-width:155px}.controls-body .back-to-yard{pointer-events:auto;font-size:11px;min-height:32px}.controls-body #navigation-panel{position:static;transform:none;width:100%;padding:10px 0;margin:8px 0 0;border-radius:0;border-top:1px solid #e2e7ea;box-shadow:none;background:transparent}.controls-body .equipment-picker-row{display:none}.controls-body #explosion-controls{padding:0;margin:0;border:0}.controls-body .explosion-header{margin-bottom:6px}.controls-body .explosion-header>label{font-size:12px}.controls-body .range-endpoints{margin-top:4px}.controls-body .range-endpoints button{min-height:30px;font-size:11px}.controls-body .yard-instruction{font-size:12px;margin:0}.controls-body #disconnect-panel{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:4px 0 0;padding:12px 0 0;border:0;border-top:1px solid #e2e7ea}.controls-body .operator-heading{grid-column:1/-1}.controls-body .operator-heading h2{font-size:12px}.controls-body .operator-lamps{grid-column:1/-1;margin:0;font-size:11px}.controls-body .operator-mode{grid-column:1/-1;grid-row:auto;gap:18px;margin:0}.controls-body .operator-mode legend{display:none}.controls-body .operator-buttons{grid-column:1/-1;grid-row:auto;margin:0;gap:8px}.controls-body .operator-buttons button{flex-direction:row;min-height:38px;font-size:12px}.controls-body .operator-message{grid-column:1/-1;margin:0;min-height:0;font-size:11px}.controls-body .operator-tools{grid-column:1/-1;gap:10px;flex-wrap:wrap}.controls-body .operator-tools button{font-size:11px;min-height:28px}.controls-body .mechanism-note{font-size:10px;margin:0}.controls-body .remote-test{grid-column:1/-1;margin:0}.controls-body .viewport-toolbar{position:static;transform:none;display:flex;flex-direction:row;justify-content:center;border:0;border-top:1px solid #e2e7ea;border-radius:0;box-shadow:none;background:none;padding-top:7px;margin-top:10px}.controls-body .viewport-toolbar button{width:38px;height:36px}.controls-body .tool-separator{display:none}.controls-body .remote-test summary{font-size:11px;min-height:30px}.controls-body .remote-test p{font-size:11px}.sidebar .part-detail{margin-top:18px}.viewer .axis-key{bottom:58px}
@media(pointer:coarse){.controls-body button,.controls-body .operator-buttons button,.controls-body .option-button{min-height:44px}}@media(max-width:620px){.floating-controls{width:270px}.controls-body{padding:10px}.controls-header{min-height:44px}}
@media(min-width:721px){.sidebar{overflow:hidden}.sidebar .model-heading,.sidebar .list-heading,.sidebar .part-detail,.sidebar .schematic-note{flex-shrink:0}.sidebar .list-heading{margin-top:22px}.sidebar .parts-list{flex:1;min-height:90px;overflow-y:auto;overscroll-behavior:contain}.sidebar .part-button{flex-shrink:0}.sidebar .part-detail{padding-top:14px;margin-top:14px;max-height:32vh;overflow:auto}.sidebar .schematic-note{padding-top:12px;font-size:10px}}
@media(max-width:720px){.sidebar{display:flex;flex-direction:column;gap:14px}.sidebar .parts-list{max-height:350px;overflow-y:auto;overscroll-behavior:contain}.sidebar .part-button{flex-shrink:0}.sidebar .part-detail{margin:0;border-top:1px solid var(--line);padding-top:14px}.sidebar .list-heading{margin:0}}

.lesson-nav{margin-left:auto;display:flex;align-items:center;gap:20px;font-size:12px}.lesson-nav a{color:#815036;text-decoration:none;min-height:44px;display:flex;align-items:center}.lesson-nav a:hover{text-decoration:underline}.lesson-nav span{color:#607481}.lesson-nav span:before{content:'/';margin-right:20px;color:#a3b1ba}@media(max-width:720px){.lesson-nav span{display:none}.lesson-nav{font-size:12px}.header-context{display:none}}