:root {
            color-scheme: light;
            --paper: #E2D6C0;
            --ink: #2e302b;
            --muted: #666b60;
            --line: #b9b39f;
            --accent: #246c60;
            --surface: rgba(255, 255, 255, 0.25);
            --card-glass: var(--surface);
            --gold: #81643e;
            --head: 156px;
            --foot: 134px;
        }

        * {
            box-sizing: border-box;
            letter-spacing: 0;
        }

        html,
        body {
            margin: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        body {
            font-family: 'Manrope', sans-serif;
            color: var(--ink);
            background: var(--paper);
        }

        button,
        a,
        input {
            -webkit-tap-highlight-color: transparent;
        }

        button {
            color: inherit;
            font: inherit;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
        }

        button:disabled {
            cursor: wait;
            opacity: .45;
        }

        [hidden] {
            display: none !important;
        }

        #app {
            position: relative;
            width: 100%;
            height: 100%;
            min-height: 380px;
            isolation: isolate;
            color: var(--ink);
            background: var(--paper);
        }

        #app:is([data-backdrop="orbit"], [data-scene-view="orbit"], [data-scene-view="launch"]) {
            color-scheme: dark;
            --paper: #000000;
            --ink: #e6ece7;
            --muted: #a0aaa7;
            --line: #303735;
            --accent: #91d8c3;
            --surface: rgba(255, 255, 255, 0.25);
            --gold: #aaa6bf;
        }

        /* A single translucent layer covers the heading and timeline. */
        #app::before {
            content: '';
            position: absolute;
            z-index: 3;
            inset: 0 0 auto;
            height: var(--head);
            background: var(--surface);
            pointer-events: none;
        }

        :is(.header, .timeline, .metric, .colophon) {
            text-shadow: 0 1px 2px rgba(226, 214, 192, .85);
        }

        #app:is([data-backdrop="orbit"], [data-scene-view="orbit"], [data-scene-view="launch"]) :is(.header, .timeline, .metric, .colophon) {
            text-shadow: 0 1px 3px rgba(0, 0, 0, .95);
        }

        .mono {
            font-family: 'IBM Plex Mono', monospace;
        }

        .eyebrow {
            font: 500 10px/1.6 'IBM Plex Mono', monospace;
            text-transform: uppercase;
            color: var(--muted);
        }

        .header {
            position: absolute;
            z-index: 5;
            top: 0;
            left: 0;
            right: 0;
            min-height: 96px;
            padding: 21px 30px 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
            background: transparent;
        }

        .identity {
            display: flex;
            gap: 18px;
            align-items: center;
            min-width: 0;
        }

        .monogram {
            font: 600 61px/.85 'Barlow Condensed', sans-serif;
            color: var(--ink);
            padding-right: 19px;
            border-right: 1px solid var(--line);
        }

        h1 {
            font-size: 21px;
            line-height: 1.25;
            font-weight: 700;
            margin: 3px 0 0;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 19px;
        }

        .edition {
            text-align: right;
        }

        .edition strong {
            display: block;
            font-size: 10px;
            font-weight: 500;
            color: var(--ink);
        }

        .view-switch {
            display: flex;
            align-items: center;
            gap: 3px;
            padding: 4px;
            border: 1px solid var(--line);
            border-radius: 6px;
            background: transparent;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .view-switch button {
            border: 0;
            background: transparent;
            font-size: 11px;
            font-weight: 700;
            min-height: 32px;
            padding: 0 13px;
            border-radius: 3px;
        }

        .view-switch button[aria-pressed="true"] {
            background: var(--ink);
            color: var(--paper);
        }

        #app:is([data-backdrop="orbit"], [data-scene-view="orbit"], [data-scene-view="launch"]) .view-switch button[aria-pressed="true"] {
            color: #15231d;
        }

        .timeline {
            position: absolute;
            z-index: 4;
            top: 103px;
            left: 30px;
            right: 30px;
            display: grid;
            grid-template-columns: 100px 1fr;
            align-items: center;
            gap: 24px;
            padding-top: 10px;
            border-top: 1px solid var(--line);
        }

        .timeline-caption {
            display: flex;
            flex-direction: column;
            gap: 2px;
            font: 500 9px/1.5 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        .timeline-caption b {
            color: var(--ink);
            font-weight: 500;
        }

        .milestones {
            display: flex;
            min-width: 0;
            justify-content: space-between;
            gap: 16px;
        }

        .milestone {
            position: relative;
            background: none;
            border: 0;
            padding: 0;
            display: grid;
            grid-template-columns: 9px auto;
            grid-template-rows: 16px 16px;
            align-items: center;
            column-gap: 8px;
            text-align: left;
            white-space: nowrap;
        }

        .milestone::before {
            content: '';
            grid-row: 1 / 3;
            width: 6px;
            height: 6px;
            border: 1px solid var(--muted);
            border-radius: 50%;
        }

        .milestone .year {
            font: 500 10px/1 'IBM Plex Mono', monospace;
            color: var(--ink);
        }

        .milestone .event {
            grid-column: 2;
            font-size: 10px;
            color: var(--muted);
        }

        .milestone[aria-pressed="true"]::before {
            background: var(--accent);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
        }

        .milestone[aria-pressed="true"] .year,
        .milestone:hover .event {
            color: var(--accent);
        }

        #viewport {
            position: absolute;
            inset: 0;
            overflow: hidden;
        }

        .viewport-chrome {
            position: absolute;
            inset: var(--head) 0 var(--foot);
            pointer-events: none;
        }

        .viewport-chrome :is(button, select) {
            pointer-events: auto;
        }

        #viewport::before {
            content: '';
            position: absolute;
            inset: 0;
            pointer-events: none;
            opacity: .36;
            background-image: linear-gradient(#9eafa620 1px, transparent 1px), linear-gradient(90deg, #9eafa620 1px, transparent 1px);
            background-size: 40px 40px;
            mask-image: radial-gradient(ellipse at center, black, transparent 68%);
        }

        #app:is([data-backdrop="space"], [data-backdrop="orbit"], [data-scene-view="orbit"], [data-scene-view="launch"]) #viewport::before {
            display: none;
        }

        #scene {
            position: absolute;
            inset: 0;
        }

        #scene canvas {
            display: block;
            width: 100%;
            height: 100%;
            touch-action: none;
            cursor: grab;
        }

        #scene canvas:active {
            cursor: grabbing;
        }

        .viewport-meta {
            position: absolute;
            top: 17px;
            left: 30px;
            pointer-events: none;
            z-index: 2;
        }

        .viewport-meta b {
            display: block;
            font: 500 10px/1.7 'IBM Plex Mono', monospace;
            color: var(--ink);
        }

        .viewport-meta span {
            font: 400 9px/1.8 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        .orientation {
            position: absolute;
            top: 18px;
            right: 30px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--muted);
            font: 400 9px 'IBM Plex Mono', monospace;
            z-index: 2;
        }

        .orientation svg {
            width: 15px;
            height: 15px;
            color: var(--accent);
        }

        .approach-status {
            position: absolute;
            top: 44px;
            right: 30px;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .approach-readout {
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 4px 0;
            border: 0;
            border-bottom: 1px solid var(--line);
            background: transparent;
            text-align: left;
        }

        .approach-readout svg {
            width: 15px;
            height: 15px;
            color: var(--accent);
        }

        .approach-readout b {
            display: block;
            font: 500 9px/1.6 'IBM Plex Mono', monospace;
        }

        .approach-readout small {
            display: block;
            min-width: 134px;
            font: 400 8px/1.7 'IBM Plex Mono', monospace;
            color: var(--muted);
            font-variant-numeric: tabular-nums;
        }

        .approach-readout:hover b {
            color: var(--accent);
        }

        .interior-focus {
            position: absolute;
            top: 48px;
            left: 30px;
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 5px 0;
            background: transparent;
            border: 0;
            border-bottom: 1px solid var(--line);
            text-align: left;
        }

        .interior-focus svg {
            width: 16px;
            height: 16px;
            color: var(--accent);
        }

        .interior-focus b {
            display: block;
            font: 500 9px/1.6 'IBM Plex Mono', monospace;
        }

        .interior-focus small {
            display: block;
            font: 400 8px/1.7 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        .interior-focus:hover b,
        .interior-focus[aria-pressed="true"] b {
            color: var(--accent);
        }

        #app[data-scene-view="interior"] #inspector {
            display: none;
        }

        #leaders,
        #labels {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 2;
        }

        #leaders path {
            stroke: var(--muted);
            stroke-width: .75;
            fill: none;
            opacity: .65;
        }

        #leaders circle {
            fill: var(--accent);
        }

        #approach-hud {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 2;
        }

        #approach-dist-line {
            stroke: var(--accent);
            stroke-width: 1.5;
            stroke-dasharray: 3 3;
            opacity: .85;
        }

        #approach-port-dot,
        #approach-dragon-dot {
            fill: var(--accent);
        }

        #approach-dragon-ring {
            fill: none;
            stroke: var(--accent);
            stroke-width: 1.5;
            opacity: .9;
        }

        /* Crew 1's thought: a small bubble over his head, in pixels so it stays readable at any zoom. */
        .crew-thought {
            position: absolute;
            left: 0;
            top: 0;
            width: 0;
            height: 0;
            pointer-events: none;
            z-index: 2;
        }

        .crew-thought b {
            position: absolute;
            left: 13px;
            bottom: 22px;
            padding: 4px 10px;
            border: 1px solid #b9b39f;
            border-radius: 13px;
            background: #fbfbf8;
            color: #2e302b;
            font: 500 10.5px/1.35 'IBM Plex Mono', monospace;
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(24, 43, 36, .16);
        }

        .crew-thought i {
            position: absolute;
            border: 1px solid #b9b39f;
            border-radius: 50%;
            background: #fbfbf8;
        }

        .crew-thought i:nth-of-type(1) {
            left: 1px;
            bottom: 3px;
            width: 5px;
            height: 5px;
        }

        .crew-thought i:nth-of-type(2) {
            left: 6px;
            bottom: 10px;
            width: 8px;
            height: 8px;
        }

        .approach-dist-badge {
            position: absolute;
            left: 0;
            top: 0;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--accent);
            padding: 2px 7px;
            border-radius: 3px;
            font: 600 10px/1.4 'IBM Plex Mono', monospace;
            letter-spacing: .03em;
            white-space: nowrap;
            pointer-events: auto;
            cursor: pointer;
            z-index: 3;
            box-shadow: 0 2px 7px rgba(24, 43, 36, .12);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            transition: border-color .15s, color .15s, background-color .15s;
        }

        .approach-dist-badge:hover {
            border-color: var(--accent);
            color: var(--ink);
        }

        .annotation {
            position: absolute;
            left: 0;
            top: 0;
            border: 0;
            padding: 4px 0;
            border-bottom: 1px solid var(--line);
            background: transparent;
            text-align: left;
            pointer-events: auto;
            white-space: nowrap;
        }

        .annotation span {
            display: block;
            font: 500 9px/1.5 'IBM Plex Mono', monospace;
            color: var(--accent);
        }

        .annotation b {
            font-size: 11px;
            line-height: 1.6;
            font-weight: 700;
        }

        .annotation:hover b {
            color: var(--accent);
        }

        .dock {
            position: absolute;
            z-index: 6;
            left: 50%;
            bottom: calc(var(--foot) + 16px);
            transform: translateX(-50%);
            display: flex;
            gap: 3px;
            align-items: center;
            padding: 6px;
            border: 1px solid var(--line);
            background: var(--surface);
            border-radius: 7px;
            box-shadow: 0 5px 18px #182b2410;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .tool {
            position: relative;
            width: 34px;
            height: 34px;
            padding: 8px;
            border: 0;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: none;
            background: transparent;
        }

        .tool svg {
            width: 17px;
            height: 17px;
            stroke-width: 1.6;
        }

        .tool:hover {
            background: color-mix(in srgb, var(--muted) 14%, transparent);
        }

        .tool[aria-pressed="true"] {
            background: color-mix(in srgb, var(--accent) 12%, transparent);
            color: var(--accent);
        }

        .tool[data-tip]::after {
            content: attr(data-tip);
            position: absolute;
            bottom: calc(100% + 12px);
            left: 50%;
            transform: translateX(-50%);
            padding: 6px 9px;
            font: 500 10px/1.4 'Manrope', sans-serif;
            color: var(--ink);
            background: var(--surface);
            border: 1px solid var(--line);
            backdrop-filter: blur(10px);
            border-radius: 3px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            visibility: hidden;
        }

        .tool:hover::after,
        .tool:focus-visible::after {
            opacity: 1;
            visibility: visible;
        }

        .tool:first-child::after {
            left: 0;
            transform: none;
        }

        .tool:last-child::after {
            left: auto;
            right: 0;
            transform: none;
        }

        .divider {
            width: 1px;
            height: 18px;
            background: var(--line);
            margin: 0 3px;
        }

        .scale {
            position: absolute;
            left: 30px;
            bottom: 22px;
            pointer-events: none;
            z-index: 2;
            color: var(--muted);
            font: 400 9px 'IBM Plex Mono', monospace;
        }

        .scale-line {
            width: 60px;
            height: 6px;
            border: 1px solid var(--muted);
            border-top: 0;
            margin-bottom: 5px;
        }

        .drawing-note {
            position: absolute;
            bottom: 24px;
            right: 30px;
            max-width: 145px;
            text-align: right;
            font: 400 8px/1.8 'IBM Plex Mono', monospace;
            color: var(--muted);
            z-index: 2;
        }

        #inspector {
            position: absolute;
            z-index: 7;
            width: 278px;
            left: 30px;
            bottom: calc(var(--foot) + 76px);
            padding: 18px;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 6px;
            box-shadow: 0 8px 25px #15241d10;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        #close-detail {
            position: absolute;
            right: 6px;
            top: 6px;
        }

        #detail-code {
            color: var(--accent);
            font: 500 9px/1.6 'IBM Plex Mono', monospace;
            padding-right: 24px;
        }

        #detail-title {
            font: 600 29px/1.1 'Barlow Condensed', sans-serif;
            margin: 7px 0 10px;
        }

        #detail-description {
            color: var(--muted);
            font-size: 11px;
            line-height: 1.75;
            margin: 0 0 14px;
        }

        #detail-facts {
            margin: 0;
            padding: 12px 0 0;
            border-top: 1px solid var(--line);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        #detail-facts dt {
            font: 400 8px/1.5 'IBM Plex Mono', monospace;
            text-transform: uppercase;
            color: var(--muted);
        }

        #detail-facts dd {
            margin: 3px 0 0;
            font-size: 12px;
            font-weight: 700;
        }

        #focus-detail {
            position: absolute;
            bottom: 11px;
            right: 11px;
        }

        .footer {
            position: absolute;
            z-index: 4;
            bottom: 0;
            left: 30px;
            right: 30px;
            height: var(--foot);
            border-top: 1px solid var(--line);
        }

        .metrics {
            display: grid;
            grid-template-columns: 1.15fr 1fr 1fr 1fr 1.2fr;
            padding: 17px 0 14px;
            gap: 20px;
        }

        .metric {
            min-width: 0;
            border-right: 1px solid var(--line);
        }

        .metric:last-child {
            border: 0;
        }

        .metric .caption {
            font: 400 9px/1.6 'IBM Plex Mono', monospace;
            color: var(--muted);
            text-transform: uppercase;
        }

        .metric .value {
            font: 500 32px/1.15 'Barlow Condensed', sans-serif;
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        .metric .unit {
            font: 500 10px 'IBM Plex Mono', monospace;
            color: var(--muted);
            padding-left: 4px;
        }

        .metric .sub {
            color: var(--muted);
            font-size: 9px;
            margin-top: 3px;
        }

        .orbit-metric .value {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .orbit-symbol {
            width: 32px;
            height: 24px;
            border: 1px solid var(--muted);
            border-radius: 50%;
            transform: rotate(-24deg);
            position: relative;
        }

        .orbit-symbol::before {
            content: '';
            position: absolute;
            width: 13px;
            height: 13px;
            border: 1px solid var(--accent);
            border-radius: 50%;
            left: 8px;
            top: 4px;
        }

        .orbit-symbol::after {
            content: '';
            position: absolute;
            width: 4px;
            height: 4px;
            background: var(--accent);
            border-radius: 50%;
            left: 26px;
            top: 0;
        }

        .colophon {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font: 400 8px/1.7 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        .colophon a {
            color: inherit;
            text-decoration: none;
            border-bottom: 1px solid var(--line);
        }

        .colophon .signature {
            text-align: center;
            letter-spacing: 0.04em;
        }

        .colophon .signature b {
            font-weight: 600;
            letter-spacing: 0.12em;
        }

        .legend-key {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--gold);
            margin-right: 6px;
        }

        #loading {
            position: absolute;
            z-index: 12;
            inset: 0;
            background: var(--paper);
            color: var(--ink);
            display: grid;
            place-content: center;
            text-align: center;
            transition: opacity .35s;
        }

        #loading .load-mark {
            font: 600 65px/1 'Barlow Condensed', sans-serif;
            margin-bottom: 16px;
        }

        #loading .load-label {
            font: 400 10px/1.6 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        #loading .load-line {
            height: 2px;
            width: 160px;
            margin: 18px auto;
            background: var(--line);
            overflow: hidden;
        }

        #loading .load-line::after {
            content: '';
            display: block;
            width: 50%;
            height: 100%;
            background: var(--accent);
            animation: load 1.4s ease-in-out infinite alternate;
        }

        @keyframes load {
            to {
                transform: translateX(100%);
            }
        }

        #error {
            max-width: 330px;
            margin: 10px auto;
            font-size: 12px;
            line-height: 1.7;
            padding: 0 20px;
        }

        #toast {
            position: absolute;
            z-index: 10;
            bottom: calc(var(--foot) + 76px);
            left: 50%;
            transform: translateX(-50%);
            max-width: calc(100% - 30px);
            padding: 9px 14px;
            background: var(--surface);
            color: var(--ink);
            border: 1px solid var(--line);
            font-size: 11px;
            border-radius: 4px;
            text-align: center;
        }

        @media (max-width:1050px) {
            .edition {
                display: none;
            }

            .timeline {
                grid-template-columns: 70px 1fr;
                gap: 15px;
            }

            .milestones {
                gap: 10px;
            }

            .milestone .event {
                font-size: 9px;
            }

            .drawing-note {
                display: none;
            }
        }

        @media (max-width:760px) {
            :root {
                --head: 177px;
                --foot: 156px;
            }

            .header {
                padding: 18px 18px 12px;
                align-items: flex-start;
                gap: 12px;
                min-height: 109px;
            }

            .identity {
                gap: 12px;
            }

            .monogram {
                font-size: 51px;
                padding-right: 12px;
            }

            h1 {
                font-size: 16px;
            }

            .identity .eyebrow {
                font-size: 8px;
            }

            .header-right {
                position: absolute;
                top: 90px;
                left: 18px;
                right: 18px;
                justify-content: space-between;
            }

            .view-switch {
                border: 0;
                padding: 0;
                background: transparent;
                gap: 4px;
            }

            .view-switch button {
                min-height: 25px;
                padding: 0 11px;
                font-size: 10px;
            }

            .edition {
                display: none;
                text-align: right;
                font-size: 8px;
            }

            .edition strong {
                font-size: 8px;
            }

            .timeline {
                left: 18px;
                right: 18px;
                top: 125px;
                display: block;
                padding-top: 10px;
            }

            .timeline-caption {
                display: none;
            }

            .milestones {
                overflow-x: auto;
                gap: 20px;
                padding: 0 1px 5px;
                scrollbar-width: none;
            }

            .milestones::-webkit-scrollbar {
                display: none;
            }

            .milestone {
                flex: none;
            }

            .milestone .event {
                font-size: 8px;
            }

            .viewport-meta {
                left: 18px;
                top: 10px;
            }

            .viewport-meta b {
                font-size: 8px;
            }

            .viewport-meta span {
                font-size: 7px;
            }

            .orientation {
                right: 18px;
                top: 12px;
                font-size: 8px;
            }

            .orientation span {
                display: none;
            }

            .approach-status {
                top: 38px;
                right: 18px;
                gap: 3px;
            }

            .approach-readout {
                gap: 6px;
            }

            .approach-readout small {
                min-width: 123px;
                font-size: 7px;
            }

            .interior-focus {
                top: 81px;
                left: 18px;
            }

            .interior-focus small {
                font-size: 7px;
            }

            .scale {
                display: none;
            }

            .annotation span {
                font-size: 7px;
            }

            .annotation b {
                font-size: 9px;
            }

            .dock {
                bottom: calc(var(--foot) + 13px);
                gap: 1px;
                padding: 4px;
            }

            .tool {
                width: 31px;
                height: 32px;
                padding: 7px;
            }

            .divider {
                margin: 0 2px;
            }

            .footer {
                left: 18px;
                right: 18px;
            }

            .metrics {
                grid-template-columns: repeat(4, 1fr);
                gap: 10px;
                padding: 14px 0;
            }

            .metric {
                border: 0;
            }

            .metric .caption {
                font-size: 7px;
            }

            .metric .value {
                font-size: 27px;
            }

            .metric .unit {
                font-size: 8px;
                padding-left: 2px;
            }

            .metric .sub {
                font-size: 8px;
                max-width: 78px;
            }

            .metric.orbit-metric {
                display: none;
            }

            .colophon {
                align-items: flex-start;
                font-size: 7px;
                line-height: 1.9;
                gap: 16px;
                border-top: 1px solid var(--line);
                padding-top: 10px;
            }

            .colophon> :first-child {
                max-width: 180px;
            }

            .colophon> :last-child {
                text-align: right;
            }

            #inspector {
                left: 18px;
                right: 18px;
                width: auto;
                bottom: calc(var(--foot) + 65px);
                padding: 14px;
            }

            #detail-title {
                font-size: 24px;
                margin-bottom: 7px;
            }

            #detail-description {
                font-size: 10px;
                margin-bottom: 10px;
                max-width: 90%;
            }

            #detail-facts {
                padding-top: 9px;
                max-width: 85%;
            }
        }

        @media (max-width:360px) {
            .monogram {
                font-size: 43px;
            }

            h1 {
                font-size: 14px;
            }

            .identity .eyebrow {
                font-size: 7px;
            }

            .tool {
                width: 28px;
            }

            .edition {
                display: none;
            }

            .metric .value {
                font-size: 24px;
            }

            .metric .sub {
                font-size: 7px;
            }
        }

        @media (max-height:600px) and (min-width:600px) {
            :root {
                --head: 112px;
                --foot: 84px;
            }

            #app {
                min-height: 0;
            }

            .header {
                padding: 12px 22px;
                min-height: 68px;
            }

            .monogram {
                font-size: 43px;
            }

            h1 {
                font-size: 17px;
            }

            .timeline {
                top: 73px;
                left: 22px;
                right: 22px;
                padding-top: 7px;
            }

            .header-right {
                position: static;
            }

            .metrics {
                padding: 8px 0;
            }

            .metric .value {
                font-size: 25px;
            }

            .metric .sub,
            .colophon {
                display: none;
            }

            .footer {
                left: 22px;
                right: 22px;
            }

            .dock {
                bottom: calc(var(--foot) + 8px);
            }

            #inspector {
                width: 290px;
                top: calc(var(--head) + 8px);
                bottom: calc(var(--foot) + 60px);
                max-height: 230px;
                padding: 12px;
                overflow: auto;
                overscroll-behavior: contain;
            }

            #detail-title {
                font-size: 22px;
                margin: 6px 0;
            }

            #detail-description {
                font-size: 10px;
                line-height: 1.6;
            }

            #detail-facts {
                padding-top: 8px;
            }

            #focus-detail {
                position: static;
                margin: 8px 0 0 auto;
            }

            .viewport-meta {
                top: 5px;
            }

            .orientation {
                top: 7px;
            }

            .approach-status {
                top: 27px;
                right: 22px;
            }

            .interior-focus {
                top: 27px;
                left: 22px;
            }
        }

        .component-picker {
            position: absolute;
            left: 30px;
            top: 94px;
            z-index: 6;
            width: 213px;
            display: grid;
            gap: 6px;
        }

        .component-picker label {
            font: 500 8px/1.4 'IBM Plex Mono', monospace;
            color: var(--muted);
            text-transform: uppercase;
        }

        #component-select {
            width: 100%;
            color: var(--ink);
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 4px;
            padding: 9px 8px;
            font: 500 10px 'Manrope', sans-serif;
            cursor: pointer;
        }

        #component-select:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .detail-tools {
            margin: 12px 0;
        }

        .detail-tools[hidden],
        #shutter-controls[hidden] {
            display: none;
        }

        .detail-tabs {
            display: flex;
            border: 1px solid var(--line);
            border-radius: 4px;
            overflow: hidden;
        }

        .detail-tabs button {
            flex: 1;
            padding: 8px 4px;
            border: 0;
            color: var(--muted);
            background: transparent;
            font: 600 9px 'Manrope', sans-serif;
        }

        .detail-tabs button[aria-pressed="true"] {
            color: var(--accent);
            background: color-mix(in srgb, var(--accent) 10%, transparent);
        }

        .detail-action {
            margin-top: 9px;
            padding: 8px 12px;
            border: 1px solid var(--accent);
            border-radius: 4px;
            color: var(--accent);
            background: transparent;
            font: 600 10px 'Manrope', sans-serif;
        }

        .detail-action:hover {
            background: color-mix(in srgb, var(--accent) 9%, transparent);
        }

        #shutter-state {
            margin-left: 9px;
            font: 500 9px 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        #shutter-controls small {
            display: block;
            margin-top: 7px;
            color: var(--muted);
            font: 400 8px/1.5 'IBM Plex Mono', monospace;
        }

        .detail-reference {
            display: block;
            margin-top: 16px;
            padding-right: 25px;
            color: var(--accent);
            font: 500 9px/1.6 'IBM Plex Mono', monospace;
            text-underline-offset: 3px;
        }

        #inspector {
            left: auto;
            right: 30px;
            max-height: calc(100% - var(--head) - var(--foot) - 105px);
            overflow-y: auto;
            scrollbar-width: thin;
        }

        #app[data-scene-view="detail"] .approach-status {
            display: none;
        }

        @media (max-width: 760px) {
            .component-picker {
                left: 18px;
                top: 43px;
                width: 154px;
            }

            .component-picker label {
                display: none;
            }

            #component-select {
                padding: 8px 5px;
                font-size: 9px;
            }

            #inspector {
                left: 18px;
                right: 18px;
                max-height: calc(100% - var(--head) - var(--foot) - 166px);
            }

            #app[data-scene-view="detail"] .viewport-chrome {
                top: calc(var(--head) + 80px);
                bottom: calc(var(--foot) + 245px);
            }

            #app[data-scene-view="detail"] .component-picker {
                position: fixed;
                top: calc(var(--head) + 22px);
                width: calc(100% - 36px);
            }

            #app[data-scene-view="detail"] .viewport-meta,
            #app[data-scene-view="detail"] .interior-focus,
            #app[data-scene-view="detail"] .orientation {
                display: none;
            }

            #app[data-scene-view="detail"] #inspector {
                max-height: 180px;
            }

        }

        @media (max-height: 600px) and (min-width: 600px) {
            .component-picker {
                left: 18px;
                top: 70px;
                width: 175px;
            }

            .component-picker label {
                display: none;
            }

            #inspector {
                left: auto;
                right: 18px;
                max-height: none;
            }
        }

        @media (prefers-reduced-motion:reduce) {

            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
            }
        }

        .guide-label {
            position: absolute;
            left: 0;
            top: 0;
            z-index: 2;
            pointer-events: none;
            white-space: nowrap;
            font: 500 8px/1.4 'IBM Plex Mono', monospace;
            letter-spacing: .04em;
            color: var(--accent);
            text-shadow: 0 1px 2px rgba(226, 214, 192, .9);
        }

        .guide-label.muted {
            color: var(--gold);
        }

        #app:is([data-backdrop="orbit"], [data-scene-view="orbit"]) .guide-label {
            text-shadow: 0 1px 3px rgba(0, 0, 0, .95);
        }

        /* Orbit view: the globe replaces the station; station overlays and station-only tools step aside. */
        #app:is([data-scene-view="orbit"], [data-scene-view="launch"]) :is(#labels, #leaders, #approach-hud, .approach-dist-badge, .crew-thought, .guide-label, .approach-status,
            .interior-focus, .component-picker, .scale, .drawing-note, #labels-toggle, #rotate-toggle, #motion-toggle, #configuration-toggle,
            #backdrop-toggle, .dock .divider) {
            display: none !important;
        }

        .orbit-panel {
            position: absolute;
            top: 64px;
            left: 30px;
            z-index: 3;
            width: 236px;
            pointer-events: auto;
        }

        .orbit-time b {
            display: block;
            font: 500 10px/1.6 'IBM Plex Mono', monospace;
            font-variant-numeric: tabular-nums;
        }

        .orbit-time span {
            font: 600 8px/1.6 'IBM Plex Mono', monospace;
            letter-spacing: .08em;
            color: var(--accent);
        }

        .orbit-warp,
        .orbit-frame {
            display: flex;
            gap: 3px;
            width: max-content;
            margin: 9px 0 12px;
            padding: 3px;
            border: 1px solid var(--line);
            border-radius: 5px;
        }

        .orbit-warp button,
        .orbit-frame button {
            min-height: 24px;
            padding: 0 11px;
            border: 0;
            border-radius: 3px;
            background: transparent;
            color: var(--muted);
            font: 600 9px 'IBM Plex Mono', monospace;
        }

        .orbit-warp button[aria-pressed="true"],
        .orbit-frame button[aria-pressed="true"] {
            background: var(--ink);
            color: var(--paper);
        }

        .orbit-readout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 9px 18px;
            margin: 0 0 12px;
            grid-auto-flow: dense;
        }

        .orbit-readout dt {
            font: 400 8px/1.5 'IBM Plex Mono', monospace;
            color: var(--muted);
            text-transform: uppercase;
        }

        .orbit-readout .wide {
            grid-column: 1 / -1;
        }

        .orbit-readout dd {
            margin: 0;
            font: 500 11px/1.4 'IBM Plex Mono', monospace;
            font-variant-numeric: tabular-nums;
        }

        .orbit-frame {
            margin: 0;
        }

        .orbit-panel small {
            display: block;
            margin-top: 10px;
            font: 400 8px/1.6 'IBM Plex Mono', monospace;
            color: var(--muted);
        }

        .orbit-label {
            position: absolute;
            left: 0;
            top: 0;
            z-index: 2;
            pointer-events: none;
            white-space: nowrap;
            font: 600 9px/1.4 'IBM Plex Mono', monospace;
            letter-spacing: .04em;
            color: #91d8c3;
            text-shadow: 0 1px 3px rgba(0, 0, 0, .95);
        }

        /* Launch view: a daylight sky behind the page's light-on-dark text, so the header, footer and panel get dark
           veils. */
        #app[data-scene-view="launch"]::before {
            background: rgba(3, 6, 12, .52);
        }

        #app[data-scene-view="launch"] .footer {
            left: 0;
            right: 0;
            padding: 0 30px;
            background: rgba(3, 6, 12, .52);
        }

        #app[data-scene-view="launch"] :is(.viewport-meta, .orientation) {
            text-shadow: 0 0 6px rgba(0, 0, 0, .9), 0 1px 2px rgba(0, 0, 0, .9);
        }

        .launch-panel {
            padding: 10px 12px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 6px;
            background: rgba(3, 6, 12, .62);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        /* Launch view corner screen: the canvas draws into this box; the box gives it a frame and a caption. */
        .launch-inset {
            position: absolute;
            top: 64px;
            right: 30px;
            z-index: 3;
            width: clamp(200px, 28vw, 380px);
            aspect-ratio: 16 / 10;
            padding: 0;
            border: 1px solid rgba(255, 255, 255, .45);
            border-radius: 4px;
            background: transparent;
            box-shadow: 0 4px 18px rgba(0, 0, 0, .45);
            cursor: pointer;
            text-align: left;
        }

        .launch-inset b,
        .launch-inset span {
            position: absolute;
            left: 0;
            padding: 3px 7px;
            background: rgba(3, 6, 12, .62);
            color: #e6ece7;
            font: 600 9px/1.3 'IBM Plex Mono', monospace;
            letter-spacing: .05em;
        }

        .launch-inset b {
            top: 0;
            color: #ffb35c;
        }

        .launch-inset span {
            bottom: 0;
            font-weight: 500;
        }

        .launch-inset:hover {
            border-color: #ffb35c;
        }

        /* Launch view panel: the orbit panel's layout, with the event list. */
        .launch-panel .orbit-warp {
            margin: 7px 0 9px;
        }

        .launch-panel .orbit-readout {
            gap: 6px 18px;
            margin-bottom: 9px;
        }

        .launch-panel small {
            margin-top: 6px;
        }

        .launch-focus {
            margin: 0 0 9px;
        }

        /* The panel's button groups span it and share it out, and wrap inside their border rather than run past the
           panel's edge. */
        .launch-panel :is(.orbit-warp, .orbit-frame) {
            width: auto;
            flex-wrap: wrap;
        }

        .launch-panel :is(.orbit-warp, .orbit-frame) button {
            flex: 1 1 auto;
            padding: 0 6px;
        }

        /* The last seconds counted over the scene (3, 2, 1, then LIFTOFF), each swelling in and fading; centred in
           the free part of the view (js/launch/view.js sets the left). */
        .launch-count {
            position: absolute;
            top: 40%;
            left: 50%;
            z-index: 2;
            pointer-events: none;
            font: 600 128px/1 'IBM Plex Mono', monospace;
            font-variant-numeric: tabular-nums;
            color: #f4f8fb;
            text-shadow: 0 0 22px rgba(0, 0, 0, .5), 0 2px 8px rgba(0, 0, 0, .8);
            will-change: transform, opacity;
        }

        .launch-count.word {
            font-size: 46px;
            letter-spacing: .14em;
        }

        .launch-event {
            margin-top: 2px;
            font: 600 12px/1.4 'IBM Plex Mono', monospace;
            letter-spacing: .04em;
            color: var(--accent);
        }

        .launch-events {
            display: grid;
            gap: 1px;
            max-height: 118px;
            margin: 0 0 8px;
            padding: 0 4px 0 0;
            overflow-y: auto;
            list-style: none;
            scrollbar-width: thin;
        }

        .launch-events button {
            display: flex;
            gap: 8px;
            width: 100%;
            padding: 0;
            border: 0;
            background: none;
            color: var(--muted);
            font: 500 9px/1.45 'IBM Plex Mono', monospace;
            text-align: left;
            cursor: pointer;
        }

        .launch-events span {
            min-width: 50px;
            font-variant-numeric: tabular-nums;
        }

        .launch-events .done button {
            color: var(--ink);
        }

        .launch-events button:hover {
            color: var(--accent);
        }

        .launch-station {
            min-height: 28px;
            margin: 2px 0 4px;
            padding: 0 12px;
            border: 1px solid var(--accent);
            border-radius: 4px;
            background: transparent;
            color: var(--accent);
            font: 600 9px 'IBM Plex Mono', monospace;
            cursor: pointer;
        }

        .launch-vehicle-label {
            color: #9fe3ff;
        }

        /* Launch view, inside the rocket: the parts' names beside each stage with leader lines (js/launch/part-labels.js). */
        .launch-parts {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
        }

        .launch-parts svg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            overflow: visible;
            filter: drop-shadow(0 0 1.5px rgba(0, 0, 0, .9));
        }

        .launch-parts line {
            stroke: rgba(236, 246, 255, .9);
            stroke-width: 1;
        }

        .launch-parts circle {
            fill: #ecf6ff;
        }

        .launch-part-label {
            color: #ecf6ff;
            font-size: 10px;
        }

        .orbit-label.body {
            color: #c9d1d9;
        }

        .orbit-label.sun {
            color: #ffd98a;
        }

        @media (max-width: 760px) {
            .orbit-panel {
                top: auto;
                bottom: 72px;
                left: 12px;
                right: 12px;
                width: auto;
                padding: 9px 11px;
                border: 1px solid var(--line);
                border-radius: 6px;
                background: rgba(0, 0, 0, .55);
                backdrop-filter: blur(8px);
                -webkit-backdrop-filter: blur(8px);
            }

            .orbit-time {
                display: flex;
                align-items: baseline;
                gap: 8px;
            }

            .orbit-warp {
                position: absolute;
                top: 6px;
                right: 9px;
                margin: 0;
            }

            .orbit-readout {
                grid-template-columns: repeat(3, 1fr);
                gap: 6px 10px;
                margin: 8px 0;
            }

            .orbit-readout dd {
                font-size: 10px;
            }

            .orbit-readout :is(.period, .inclination) {
                display: none;
            }

            .orbit-panel small {
                margin-top: 6px;
            }

            .launch-events {
                display: none;
            }

            .launch-inset {
                top: 46px;
                right: 12px;
                width: 46vw;
            }

            .launch-panel .orbit-warp {
                position: static;
                margin: 6px 0 7px;
            }

            .launch-panel .orbit-warp button {
                padding: 0 8px;
            }

            .launch-event {
                font-size: 10px;
            }
        }