@charset "UTF-8";

:root {
  color-scheme: dark;
  --bg-page: #07111d;
  --bg-raised: #101c29;
  --bg-raised-2: #182736;
  --text-primary: #f4f4ef;
  --text-secondary: #d1dce3;
  --text-muted: #bdcbd4;
  --line-soft: #526271;
  --line-strong: #8396a4;
  --accent: #ffe5a0;
  --accent-ink: #17212a;
  --blue: #9bcde0;
  --chart-night: #071321;
  --chart-sea: #122d42;
  --chart-dawn: #435854;
  --chart-haze: #5b482d;
  --chart-land: #42505a;
  --chart-route: #ffdc84;
  --chart-text: #fbf7eb;
  --focus: #ffe07b;
  --bg-scrim: rgb(0 0 0 / .72);
  --shadow-soft: 0 .2rem .8rem rgb(0 0 0 / .42);
  --topbar-height: 3.5rem;
  --page-width: 76rem;
  --reading-width: 47rem;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg-page);
  color: var(--text-primary);
  scroll-padding-top: calc(var(--topbar-height) + 1rem);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg-page: #f4f2eb;
  --bg-raised: #e7e5dc;
  --bg-raised-2: #deddd3;
  --text-primary: #171d22;
  --text-secondary: #303d45;
  --text-muted: #374750;
  --line-soft: #87939a;
  --line-strong: #52636d;
  --accent: #593800;
  --accent-ink: #fffaf0;
  --blue: #143f57;
  --chart-night: #f4f2eb;
  --chart-sea: #d4e2e0;
  --chart-dawn: #e5c997;
  --chart-haze: #f2e5c5;
  --chart-land: #77817f;
  --chart-route: #352512;
  --chart-text: #171d22;
  --focus: #633b00;
  --bg-scrim: rgb(0 0 0 / .62);
  --shadow-soft: 0 .2rem .8rem rgb(0 0 0 / .15);
}

*, *::before, *::after { box-sizing: border-box; }
html { min-width: 20rem; scroll-behavior: smooth; }
body { margin: 0; min-width: 20rem; background: var(--bg-page); color: var(--text-primary); line-height: 1.55; }
body, button, input { font-family: inherit; }
button, input, a { color: inherit; }
a { text-underline-offset: .2em; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
[hidden], svg[hidden] { display: none !important; }
::selection { background: var(--accent); color: var(--accent-ink); }

.skip-link { position: fixed; z-index: 80; inset: .5rem auto auto .5rem; transform: translateY(-160%); padding: .7rem 1rem; color: var(--accent-ink); background: var(--accent); }
.skip-link:focus { transform: translateY(0); }
.topbar {
  position: sticky; z-index: 50; top: 0; display: flex; align-items: center; gap: .8rem;
  width: 100%; min-height: var(--topbar-height); padding: .4rem max(1rem, calc((100vw - var(--page-width)) / 2));
  border-bottom: 1px solid var(--line-soft); background: var(--bg-page);
}
.home { flex: 0 0 auto; display: inline-flex; align-items: center; gap: .55rem; max-width: 11rem; color: var(--text-primary); font: 600 .8rem/1.1 ui-sans-serif, system-ui, sans-serif; text-decoration: none; letter-spacing: .025em; }
.home-mark { display: block; position: relative; width: 1.55rem; height: .62rem; border-top: 1px solid currentColor; transform: skewY(-14deg); }
.home-mark::before { content: ""; position: absolute; left: 35%; top: -.2rem; width: .18rem; height: .18rem; border-radius: 50%; background: var(--accent); box-shadow: 0 0 .5rem var(--accent); }
.topnav { display: flex; align-items: center; gap: .95rem; min-width: 0; overflow-x: auto; white-space: nowrap; scrollbar-width: none; font: 500 .76rem/1.2 ui-sans-serif, system-ui, sans-serif; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a { flex: 0 0 auto; color: var(--text-secondary); text-decoration: none; }
.topnav a[aria-current="location"] { color: var(--accent); }
.bar-spacer { flex: 1 0 .15rem; }
.language-switch { display: inline-flex; flex: 0 0 auto; align-items: center; gap: .2rem; font: 700 .72rem/1 ui-sans-serif, system-ui, sans-serif; }
.language-switch a { display: inline-grid; min-width: 2rem; min-height: 2rem; place-items: center; border-radius: 50%; color: var(--text-secondary); text-decoration: none; }
.language-switch a[aria-current="page"] { background: var(--bg-raised-2); color: var(--text-primary); }
.icon-button { display: inline-grid; flex: 0 0 2.5rem; width: 2.5rem; height: 2.5rem; place-items: center; border: 1px solid var(--line-soft); border-radius: 50%; background: transparent; cursor: pointer; }
.icon-button:hover { border-color: var(--accent); color: var(--accent); }
.icon-button svg { display: block; width: 1.2rem; height: 1.2rem; }
.icon-button svg[hidden] { display: none !important; }
.scroll-progress { appearance: none; position: absolute; z-index: 2; inset: auto 0 -1px; display: block; width: 100%; height: 2px; border: 0; background: transparent; }
.scroll-progress::-webkit-progress-bar { background: transparent; }
.scroll-progress::-webkit-progress-value { background: var(--accent); box-shadow: 0 0 .5rem var(--accent); }
.scroll-progress::-moz-progress-bar { background: var(--accent); box-shadow: 0 0 .5rem var(--accent); }

main { display: block; }
.page-width { width: min(calc(100% - 2.5rem), var(--page-width)); margin-inline: auto; }
.reading-width { width: min(calc(100% - 2.5rem), var(--reading-width)); margin-inline: auto; }
.intro { position: relative; display: grid; grid-template-columns: minmax(0, .96fr) minmax(16rem, 1fr); align-items: end; gap: clamp(1.5rem, 5vw, 5rem); padding-block: clamp(2.4rem, 6vw, 5.5rem) clamp(2rem, 4vw, 3.5rem); }
.eyebrow { margin: 0 0 .8rem; color: var(--accent); font: 700 .72rem/1.3 ui-sans-serif, system-ui, sans-serif; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 14ch; margin-bottom: 0; font-size: clamp(2.6rem, 6vw, 5.4rem); line-height: .99; font-weight: 500; letter-spacing: -.055em; }
.intro-deck { max-width: 32rem; margin: 0; color: var(--text-secondary); font-size: clamp(1.05rem, 1.5vw, 1.35rem); line-height: 1.45; }
.share-row { display: flex; align-items: center; gap: .42rem; flex-wrap: wrap; min-height: 3rem; margin: 0 auto clamp(1rem, 2vw, 1.8rem); padding: .2rem 0 .5rem; border-bottom: 1px solid var(--line-soft); }
.share-label { margin-right: .35rem; color: var(--text-muted); font: 500 .78rem/1.2 ui-sans-serif, system-ui, sans-serif; }
.share-row a, .share-row button { display: inline-grid; flex: 0 0 2.5rem; width: 2.5rem; height: 2.5rem; place-items: center; border: 1px solid var(--line-soft); border-radius: 50%; background: transparent; color: var(--text-primary); text-decoration: none; cursor: pointer; }
.share-row a:hover, .share-row button:hover { border-color: var(--accent); color: var(--accent); }
.share-row svg { width: 1.12rem; height: 1.12rem; fill: currentColor; }
.share-status { min-width: 10rem; color: var(--text-muted); font: .75rem/1.3 ui-sans-serif, system-ui, sans-serif; }

.hero-scene { position: relative; overflow: hidden; border-block: 1px solid var(--line-soft); background: var(--chart-night); isolation: isolate; }
.hero-chart { display: block; width: 100%; height: clamp(22rem, 51vw, 43rem); min-height: 22rem; }
.chart-atmosphere { fill: url(#sky-wash); }
.chart-dawnwash { fill: url(#dawn-glow); opacity: .15; transition: opacity .2s ease-out; }
#chart.is-dawn .chart-dawnwash { opacity: .82; }
.chart-glow { fill: url(#dawn-glow); opacity: .55; }
.chart-grid { stroke: var(--chart-text); stroke-opacity: .22; stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart-route { fill: none; stroke: var(--chart-route); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 0; vector-effect: non-scaling-stroke; filter: url(#wake); }
.chart-route-interpolated { stroke-dasharray: 8 9; }
.chart-wake { fill: none; stroke: var(--chart-route); stroke-width: 5; stroke-linecap: round; opacity: .72; vector-effect: non-scaling-stroke; filter: url(#wake); }
.chart-ice { fill: url(#ice-hatch); stroke: var(--chart-haze); stroke-width: 1.4; stroke-opacity: .8; vector-effect: non-scaling-stroke; }
.chart-point { fill: var(--chart-route); stroke: var(--chart-night); stroke-width: 3; vector-effect: non-scaling-stroke; }
.chart-progress { fill: var(--chart-route); stroke: var(--chart-text); stroke-width: 2; vector-effect: non-scaling-stroke; filter: url(#wake); }
.chart-place { fill: var(--chart-dawn); stroke: var(--chart-text); stroke-width: 2; vector-effect: non-scaling-stroke; }
.chart-place-halo { fill: none; stroke: var(--chart-route); stroke-width: 2; stroke-opacity: .7; vector-effect: non-scaling-stroke; }
.chart-label { fill: var(--chart-text); font: 600 15px/1.2 ui-sans-serif, system-ui, sans-serif; paint-order: stroke; stroke: var(--chart-night); stroke-width: 5px; stroke-linejoin: round; }
.chart-label-small { fill: var(--chart-text); font: 500 11px/1.2 ui-sans-serif, system-ui, sans-serif; paint-order: stroke; stroke: var(--chart-night); stroke-width: 4px; stroke-linejoin: round; }
.chart-kicker { position: absolute; inset: 1.1rem auto auto max(1.25rem, calc((100% - var(--page-width)) / 2)); color: var(--chart-text); font: 700 .68rem/1.3 ui-sans-serif, system-ui, sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.chart-caption { position: absolute; inset: auto max(1.25rem, calc((100% - var(--page-width)) / 2)) 1rem auto; max-width: 27rem; margin: 0; padding: .5rem .7rem; border: 1px solid var(--chart-haze); background: var(--chart-night); color: var(--chart-text); font: 500 .76rem/1.45 ui-sans-serif, system-ui, sans-serif; text-align: right; }
.chart-legend { display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; align-items: center; margin-block: 1rem 0; color: var(--text-secondary); font: .78rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.legend-item { display: inline-flex; align-items: center; gap: .48rem; }
.legend-swatch { display: inline-block; width: 1.35rem; height: .2rem; background: var(--accent); }
.legend-swatch.gap { height: 0; border-top: 2px dotted var(--line-strong); background: none; }
.legend-swatch.dashed { height: 0; border-top: 2px dashed var(--blue); background: none; }
.legend-swatch.ice { height: .8rem; border: 1px solid var(--line-strong); background: repeating-linear-gradient(135deg, transparent 0 .18rem, var(--line-strong) .2rem .24rem); }
.chart-source-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin-block: 1rem 2rem; color: var(--text-secondary); font: .76rem/1.45 ui-sans-serif, system-ui, sans-serif; }
.chart-source-notes p { margin: 0; }
.chart-source-notes b { display: block; margin-bottom: .25rem; color: var(--text-primary); }
.chart-source-notes a, .lane-offset a { color: inherit; }
.chart-heading { margin: .6rem 0 .8rem; }
.chart-heading .heading-line h2 { max-width: 42ch; flex: 1; min-width: 0; margin: 0; color: var(--text-primary); font-size: clamp(1.25rem, 2vw, 1.8rem); font-weight: 500; line-height: 1.2; }
.heading-line { display: flex; align-items: flex-start; gap: .35rem; }
.section-head .heading-line h2 { flex: 1; min-width: 0; }
.section-permalink { display: inline-grid; flex: 0 0 2.75rem; width: 2.75rem; height: 2.75rem; place-items: center; border: 1px solid var(--line-soft); border-radius: 50%; color: var(--text-secondary); font: 600 .9rem/1 ui-sans-serif, system-ui, sans-serif; text-decoration: none; }
.section-permalink:hover { border-color: var(--accent); color: var(--accent); }
.section-permalink:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.instrument-section { position: relative; padding-block: clamp(3rem, 7vw, 6rem); border-bottom: 1px solid var(--line-soft); scroll-margin-top: calc(var(--topbar-height) + .75rem); }
.section-head { display: grid; grid-template-columns: minmax(0, .9fr) minmax(17rem, 1.1fr); gap: clamp(1.5rem, 5vw, 5rem); align-items: end; margin-bottom: 2rem; }
.section-head h2 { max-width: 19ch; margin: 0; font-size: clamp(2rem, 4.3vw, 3.65rem); font-weight: 500; line-height: 1.02; letter-spacing: -.04em; }
.section-head p { max-width: 35rem; margin: 0; color: var(--text-secondary); font-size: 1.05rem; }
.section-mark { margin: 0 0 .6rem; color: var(--accent); font: 700 .7rem/1.2 ui-sans-serif, system-ui, sans-serif; letter-spacing: .12em; text-transform: uppercase; }

.clock-instrument { padding: 1.1rem; border: 1px solid var(--line-soft); background: var(--bg-raised); }
.time-controls { display: grid; grid-template-columns: auto minmax(5rem, 1fr) auto; gap: 1rem; align-items: center; margin-bottom: 1.2rem; }
.time-control-head { grid-column: 1 / 4; display: flex; align-items: center; gap: .8rem; }
.time-control-head label { margin-right: auto; color: var(--text-secondary); font: 600 .8rem/1.3 ui-sans-serif, system-ui, sans-serif; }
.play-button { flex: 0 0 auto; min-height: 2.4rem; padding: .4rem .8rem; border: 1px solid var(--line-soft); border-radius: 2rem; background: var(--bg-raised-2); color: var(--text-primary); font: 600 .74rem/1.2 ui-sans-serif, system-ui, sans-serif; cursor: pointer; }
.play-button:hover { border-color: var(--accent); color: var(--accent); }
.time-controls label, .speed-control label { color: var(--text-secondary); font: 600 .8rem/1.3 ui-sans-serif, system-ui, sans-serif; }
.time-output { min-width: 5rem; color: var(--accent); font: 700 1rem/1.1 ui-monospace, SFMono-Regular, Menlo, monospace; text-align: right; }
input[type="range"] { display: block; width: 100%; min-width: 0; height: 2.5rem; margin: 0; accent-color: var(--accent); cursor: ew-resize; }
input[type="range"]:focus-visible { outline-offset: 0; }
.range-help { grid-column: 2 / 4; margin: -.65rem 0 0; color: var(--text-muted); font: .72rem/1.3 ui-sans-serif, system-ui, sans-serif; }
.clock-axis { display: flex; justify-content: space-between; margin: 0 0 .65rem 9.5rem; color: var(--text-muted); font: .68rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.clock-axis span::after { content: " NY"; }
.clock-lanes { display: grid; gap: .42rem; }
.clock-lane { display: grid; grid-template-columns: 8.8rem minmax(0, 1fr); gap: .7rem; align-items: center; min-height: 3.55rem; }
.lane-title { display: flex; flex-direction: column; gap: .16rem; min-width: 0; color: var(--text-primary); font: 600 .76rem/1.2 ui-sans-serif, system-ui, sans-serif; }
.lane-clock { color: var(--text-muted); font: 500 .65rem/1.2 ui-sans-serif, system-ui, sans-serif; }
.lane-offset { position: relative; padding-inline: .45rem; color: var(--text-secondary); font: .62rem/1.25 ui-sans-serif, system-ui, sans-serif; }
.lane-offset::before, .lane-offset::after { position: absolute; top: 0; color: var(--accent); font: 700 .75rem/1 ui-sans-serif, system-ui, sans-serif; }
.lane-offset::before { content: "["; left: 0; }
.lane-offset::after { content: "]"; right: 0; }
.lane-track-wrap { min-width: 0; }
.lane-track { display: block; width: 100%; height: 2.75rem; overflow: visible; }
.lane-baseline { stroke: var(--line-strong); stroke-width: 1.1; }
.lane-cursor { stroke: var(--accent); stroke-width: 1.1; filter: drop-shadow(0 0 .35rem var(--accent)); pointer-events: none; }
.clock-tick { fill: var(--blue); stroke: var(--bg-raised); stroke-width: 2; }
.clock-tick.is-current { fill: var(--accent); stroke: var(--text-primary); stroke-width: 3; }
.clock-tick-alternative { fill: var(--bg-raised); stroke: var(--accent); stroke-dasharray: 2 1.5; }
.axis-gap { display: inline-block; margin: .45rem .35rem; color: var(--text-muted); font: .62rem/1.3 ui-sans-serif, system-ui, sans-serif; }
.minute-readout { display: flex; flex-wrap: wrap; gap: .45rem .8rem; min-height: 2.4rem; margin-top: 1.2rem; padding: .8rem .9rem; border-left: 3px solid var(--accent); background: var(--bg-raised-2); color: var(--text-secondary); font: .76rem/1.45 ui-sans-serif, system-ui, sans-serif; }
.minute-readout:empty::before { content: ""; }
.readout-entry b { color: var(--text-primary); }
.readout-entry time { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.table-frame { width: 100%; margin-top: 1.5rem; overflow-x: auto; border: 1px solid var(--line-soft); }
.clock-table { width: 100%; min-width: 42rem; border-collapse: collapse; color: var(--text-primary); font: .77rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.clock-table caption { padding: .85rem 1rem; color: var(--text-secondary); text-align: left; }
.clock-table th, .clock-table td { padding: .65rem .8rem; border-top: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
.clock-table th { color: var(--text-secondary); font-size: .7rem; letter-spacing: .035em; }
.clock-table time { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.clock-table .withdrawn { text-decoration: line-through; text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.clock-table .time-zone-tag { display: block; color: var(--text-muted); font-size: .68rem; }
.source-line { color: var(--text-muted); font-size: .72rem; }
.evidence { margin-top: 1rem; border-top: 1px solid var(--line-soft); }
.evidence summary { width: fit-content; min-height: 2.75rem; padding: .6rem 0; color: var(--text-secondary); cursor: pointer; font: 600 .8rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.evidence blockquote { max-width: 55rem; margin: .3rem 0 1rem; padding-left: 1rem; border-left: 2px solid var(--line-strong); color: var(--text-secondary); }
.evidence-dialog:not([open]) { display: none; }
.evidence-dialog { position: fixed; inset: 0; width: min(42rem, calc(100% - 2rem)); max-width: none; max-height: min(76dvh, 44rem); margin: auto; padding: 0; overflow: visible; border: 1px solid var(--line-strong); background: transparent; color: var(--text-primary); box-shadow: var(--shadow-soft); }
.evidence-dialog::backdrop { background: var(--bg-scrim); }
.evidence-card { position: relative; max-height: min(76dvh, 44rem); overflow: auto; padding: clamp(1.2rem, 4vw, 2rem); background: var(--bg-raised); }
.evidence-card h2 { max-width: 35rem; margin: 0 3rem 1rem 0; color: var(--text-primary); font-size: clamp(1.35rem, 3vw, 1.8rem); font-weight: 500; line-height: 1.2; }
.evidence-dialog-close { position: absolute; top: .7rem; right: .7rem; display: grid; width: 2.75rem; height: 2.75rem; place-items: center; border: 1px solid var(--line-soft); border-radius: 50%; background: var(--bg-raised-2); color: var(--text-primary); font: 500 1.35rem/1 ui-sans-serif, system-ui, sans-serif; cursor: pointer; }
.evidence-dialog-close:hover { border-color: var(--accent); color: var(--accent); }
.evidence-dialog-body blockquote { max-width: 55rem; margin: .5rem 0 1.2rem; padding-left: 1rem; border-left: 2px solid var(--line-strong); color: var(--text-secondary); }
.evidence-dialog-body .time-zone-tag, .evidence-dialog-body .source-line { color: var(--text-muted); }
.evidence-dialog-body a { color: inherit; }
.status-tag { display: inline-block; margin-left: .35rem; padding: .1rem .38rem; border: 1px solid var(--line-soft); border-radius: 2rem; color: var(--text-secondary); font: 600 .63rem/1.2 ui-sans-serif, system-ui, sans-serif; }

.speed-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(17rem, .8fr); gap: clamp(1.5rem, 6vw, 5rem); align-items: center; padding: clamp(1rem, 3vw, 2.2rem); border: 1px solid var(--line-soft); background: var(--bg-raised); }
.speed-control { display: grid; gap: .55rem; }
.speed-control-top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.speed-current { color: var(--accent); font: 700 clamp(1.5rem, 3vw, 2.5rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.speed-track { display: block; width: 100%; height: 2.3rem; overflow: visible; }
.speed-baseline { stroke: var(--line-strong); stroke-width: 2; }
.speed-tick { fill: var(--blue); stroke: var(--bg-raised); stroke-width: 2; }
.duration-card { padding: 1.2rem; border-left: 2px solid var(--accent); background: var(--bg-raised-2); }
.duration-card p { margin-bottom: .45rem; color: var(--text-secondary); font: .78rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.duration-assumptions { display: grid; gap: .8rem; margin-block: .55rem 1rem; }
.duration-assumption > div { display: flex; align-items: baseline; justify-content: space-between; gap: .65rem; }
.duration-assumption span { color: var(--text-secondary); font: 600 .73rem/1.3 ui-sans-serif, system-ui, sans-serif; }
.duration-assumption strong { color: var(--accent); font: 700 clamp(1.35rem, 3vw, 2rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.duration-compare { display: block; width: 100%; height: .7rem; overflow: visible; }
.duration-base { fill: var(--bg-page); }
.duration-fill { fill: var(--accent); transition: width .15s ease-out; }
.reported-marker { stroke: var(--text-primary); stroke-width: 1.4; }
.speed-sources { display: grid; gap: .55rem; margin: 1.25rem 0 0; padding-left: 1.2rem; color: var(--text-secondary); font: .72rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.speed-sources li { max-width: 42rem; }
.arithmetic-marker { margin: .15rem 0 0; padding: .65rem .75rem; border-left: 2px solid var(--blue); background: var(--bg-raised-2); color: var(--text-secondary); font: .72rem/1.45 ui-sans-serif, system-ui, sans-serif; }
.arithmetic-marker b { color: var(--text-primary); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.speed-sources a, .arithmetic-marker a, .survivor-source a { color: inherit; }

.survivor-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line-soft); background: var(--line-soft); }
.survivor-card { min-height: 13rem; padding: clamp(1.1rem, 2.2vw, 2rem); background: var(--bg-page); }
.survivor-card .count { display: block; margin-bottom: .75rem; color: var(--accent); font: 500 clamp(2.4rem, 5vw, 4.5rem)/.95 Georgia, serif; letter-spacing: -.04em; }
.survivor-card h3 { max-width: 20ch; margin-bottom: .5rem; font: 600 1rem/1.35 ui-sans-serif, system-ui, sans-serif; }
.survivor-card p { margin: 0; color: var(--text-secondary); font: .8rem/1.45 ui-sans-serif, system-ui, sans-serif; }
.survivor-note { margin: 1rem 0 0; padding: 1rem; border-left: 3px solid var(--accent); background: var(--bg-raised); color: var(--text-secondary); }

.knowledge-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.knowledge-card { padding: 1.1rem; border-top: 2px solid var(--blue); background: var(--bg-raised); }
.knowledge-card h3 { margin-bottom: .6rem; font: 700 .9rem/1.25 ui-sans-serif, system-ui, sans-serif; }
.knowledge-card p { margin: 0; color: var(--text-secondary); font-size: .9rem; }
.knowledge-current { color: var(--text-secondary); font-size: .9rem; }
.knowledge-current p { margin-bottom: .55rem; }
.knowledge-current p:last-child { margin-bottom: 0; }
.captain-details { margin-top: 1.5rem; border: 1px solid var(--line-soft); background: var(--bg-raised); }
.captain-details > summary { min-height: 3.2rem; padding: .85rem 1rem; color: var(--text-primary); cursor: pointer; font: 600 .95rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.captain-body { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem; padding: 0 1rem 1.2rem; }
.captain-body blockquote { margin: 0; padding: .85rem; border-left: 2px solid var(--accent); color: var(--text-secondary); background: var(--bg-raised-2); }

.call-signals { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; }
.signal-card { padding: clamp(1.1rem, 2.5vw, 2rem); border: 1px solid var(--line-soft); background: var(--bg-raised); }
.signal-word { display: block; margin-bottom: 1rem; color: var(--accent); font: 700 clamp(2.1rem, 5vw, 4rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.signal-card p { margin: 0; color: var(--text-secondary); }

.sources-list { padding-left: 1.3rem; color: var(--text-secondary); }
.sources-list li { margin-block: .55rem; }
.related-link { display: inline-flex; gap: .5rem; align-items: center; margin-top: 1.25rem; padding: .65rem 0; color: var(--text-primary); font-weight: 600; }
.site-footer { padding-block: 2rem 4rem; color: var(--text-muted); font: .75rem/1.45 ui-sans-serif, system-ui, sans-serif; }
.site-footer p { max-width: 45rem; margin-bottom: .8rem; }
.back-to-top { position: fixed; z-index: 20; right: max(1rem, env(safe-area-inset-right)); bottom: max(1rem, env(safe-area-inset-bottom)); display: inline-flex; align-items: center; gap: .45rem; min-height: 2.8rem; padding: .45rem .8rem; border: 1px solid var(--line-strong); border-radius: 2rem; background: var(--bg-raised); color: var(--text-primary); box-shadow: var(--shadow-soft); font: 600 .78rem/1 ui-sans-serif, system-ui, sans-serif; cursor: pointer; }
.copy-field { position: fixed; inset-block-start: 0; inset-inline-start: -9999px; width: 1px; height: 1px; }

.reading-rail { position: fixed; z-index: 25; top: 50%; right: max(1.35rem, calc((100vw - var(--page-width)) / 2 - 3.3rem)); display: grid; gap: .72rem; transform: translateY(-50%); padding: .8rem .6rem; border: 1px solid var(--line-soft); border-radius: 2rem; background: var(--bg-page); }
.reading-rail a { position: relative; display: grid; width: 1.5rem; height: 1.5rem; place-items: center; border-radius: 50%; background: transparent; }
.reading-rail a::before { content: ""; display: block; width: .58rem; height: .58rem; border: 1px solid var(--line-strong); border-radius: 50%; background: var(--bg-page); }
.reading-rail a:hover::before, .reading-rail a[aria-current="location"]::before { border-color: var(--accent); background: var(--accent); }
.reading-rail a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.reading-rail a span { position: absolute; right: 1.7rem; top: 50%; width: max-content; max-width: 13rem; padding: .35rem .5rem; border: 1px solid var(--line-soft); background: var(--bg-page); color: var(--text-primary); font: .72rem/1.2 ui-sans-serif, system-ui, sans-serif; opacity: 0; pointer-events: none; transform: translateY(-50%); }
.reading-rail a:hover span, .reading-rail a:focus-visible span { opacity: 1; }
.reading-rail a span[hidden] { display: none !important; }

.no-script-note { padding: .65rem .8rem; border: 1px solid var(--line-soft); color: var(--text-secondary); font: .78rem/1.4 ui-sans-serif, system-ui, sans-serif; }
.not-found { padding-block: 4rem; }
.no-js .time-controls, .no-js .speed-control input { display: none; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

@media (pointer: coarse) {
  .share-row a, .share-row button { flex-basis: 2.75rem; width: 2.75rem; height: 2.75rem; }
  .icon-button { flex-basis: 2.75rem; width: 2.75rem; height: 2.75rem; }
  .clock-tick { stroke-width: 3; }
}
@media (min-width: 94rem) {
  .reading-rail { right: calc((100vw - var(--page-width)) / 2 - 3.2rem); }
}
@media (max-width: 66rem) {
  .reading-rail { display: none; }
  .intro { grid-template-columns: 1fr; align-items: start; }
  .intro-deck { max-width: 41rem; }
}
@media (max-width: 48rem) {
  :root { --topbar-height: 3.25rem; }
  .topbar { gap: .4rem; padding-inline: .7rem; }
  .home { gap: .35rem; max-width: 2rem; }
  .home .home-name { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
  .home-mark { width: 1.35rem; }
  .topnav { gap: .8rem; font-size: .7rem; }
  .bar-spacer { flex-grow: 0; }
  .language-switch { gap: 0; }
  .language-switch a { min-width: 1.8rem; min-height: 2.1rem; font-size: .66rem; }
  .icon-button { flex-basis: 2.25rem; width: 2.25rem; height: 2.25rem; }
  .page-width, .reading-width { width: min(calc(100% - 1.5rem), var(--page-width)); }
  .intro { gap: 1rem; padding-block: 2.25rem 1.65rem; }
  h1 { max-width: 13ch; font-size: clamp(2.45rem, 10.2vw, 4rem); }
  .intro-deck { font-size: 1rem; }
  .share-row { margin-bottom: 1rem; }
  .share-status { flex-basis: 100%; min-height: 1rem; }
  .chart-source-notes { grid-template-columns: 1fr; gap: .75rem; }
  .hero-chart { height: 27rem; min-height: 25rem; }
  .chart-kicker { inset-inline-start: .8rem; top: .8rem; max-width: 45%; font-size: .59rem; }
  .chart-caption { inset-inline: auto .8rem; bottom: .7rem; max-width: 13rem; font-size: .65rem; }
  .section-head { grid-template-columns: 1fr; gap: .85rem; margin-bottom: 1.4rem; }
  .section-head h2 { font-size: clamp(2rem, 8vw, 3rem); }
  .section-head p { font-size: .94rem; }
  .clock-instrument { padding: .75rem .55rem; }
  .time-controls { grid-template-columns: minmax(0, 1fr); gap: .25rem; }
  .time-control-head { grid-column: 1; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .4rem .6rem; }
  .time-control-head label { grid-column: 1; grid-row: 1; }
  .time-output { grid-column: 2; grid-row: 1; font-size: .82rem; }
  .play-button { grid-column: 1 / 3; grid-row: 2; width: fit-content; }
  .time-controls input { grid-column: 1; grid-row: 2; }
  .range-help { grid-column: 1; grid-row: 3; margin: -.35rem 0 .25rem; }
  .clock-axis { margin-left: 6.3rem; font-size: .59rem; }
  .clock-lane { grid-template-columns: 5.65rem minmax(0, 1fr); gap: .55rem; min-height: 4rem; }
  .lane-title { font-size: .68rem; }
  .lane-clock { font-size: .57rem; }
  .lane-offset { font-size: .55rem; }
  .lane-track { height: 3rem; }
  .clock-table { min-width: 39rem; }
  .speed-panel { grid-template-columns: 1fr; gap: 2rem; padding: 1rem; }
  .survivor-cards { grid-template-columns: 1fr; }
  .survivor-card { min-height: 0; padding: 1.1rem; }
  .survivor-card .count { font-size: 3rem; }
  .knowledge-grid { grid-template-columns: 1fr; }
  .captain-body, .call-signals { grid-template-columns: 1fr; }
  .instrument-section { padding-block: 3rem; }
  .back-to-top { right: max(.55rem, env(safe-area-inset-right)); bottom: max(.55rem, env(safe-area-inset-bottom)); }
}
@media (max-width: 23rem) {
  .topnav { gap: .62rem; }
  .topnav a { font-size: .65rem; }
  .language-switch a { min-width: 1.55rem; }
  .chart-caption { max-width: 10rem; }
  .clock-axis { margin-left: 5.8rem; }
  .clock-lane { grid-template-columns: 5.15rem minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
@media print {
  .topbar, .reading-rail, .share-row, .back-to-top, input[type="range"] { display: none !important; }
  :root, :root[data-theme="light"] { color-scheme: light; --bg-page: #fff; --bg-raised: #f3f3f3; --bg-raised-2: #e9e9e9; --text-primary: #111; --text-secondary: #222; --text-muted: #333; }
  .instrument-section { break-inside: avoid; }
  a { color: inherit; }
}