/* Variante V3 — bleu RVB · grille carrée encadrée */

@font-face {
  font-family: "Selecta";
  src: url("../woff/Selecta-Regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
}

:root {
  --bg: #d6d6d1;
  --bg-margin: #d6d6d1;
  --panel: #d6d6d1;
  --grid-size: 40px;
  --text: #000000;
  --accent: rgb(0, 102, 255);
  --body-size: 18px;
  --line-height: 1.25;
  --pad-top: 2.5rem;
  --pad-right: 1.75rem;
  --pad-bottom: 3.5rem;
  --pad-left: 2rem;
  --strip-h: 2.75rem;
  --snap-gap: 1.25rem;
  --view-h: calc(100vh - var(--strip-h) * 2 - var(--snap-gap) * 2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  scroll-padding-top: calc(var(--strip-h) + var(--snap-gap));
  scroll-padding-bottom: calc(var(--strip-h) + var(--snap-gap));
  background: var(--bg);
}

body {
  margin: 0;
  font-family: "Selecta", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: var(--body-size);
  line-height: var(--line-height);
  color: var(--text);
  background-color: var(--bg);
}

.doc-strip {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem var(--pad-right) 0.4rem var(--pad-left);
  font-size: var(--body-size);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--bg);
  pointer-events: none;
}

.doc-strip--top {
  top: 0;
}

.doc-strip--bottom {
  bottom: 0;
}

.doc-strip__page {
  font-variant-numeric: tabular-nums;
}

.doc-strip a {
  color: inherit;
  text-decoration: none;
  pointer-events: auto;
}

.doc-strip a:hover {
  text-decoration: underline;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  align-items: start;
  min-height: 100vh;
  background: var(--bg);
}

.layout__text {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  padding: 0;
  background-color: var(--bg);
}

.layout__divider {
  position: fixed;
  top: 0;
  left: calc(100vw / 3);
  width: 1px;
  height: 100vh;
  background: var(--text);
  z-index: 25;
  pointer-events: none;
}

.layout__chart {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  position: sticky;
  top: calc(var(--strip-h) + var(--snap-gap));
  height: calc(100vh - var(--strip-h) * 2 - var(--snap-gap) * 2);
  display: flex;
  flex-direction: column;
  background: var(--bg-margin);
  padding-left: var(--pad-left);
  padding-right: var(--pad-right);
}

#chart-stage {
  flex: 1;
  position: relative;
  min-height: 0;
  background-color: var(--bg-margin);
  cursor: default;
  overflow: visible;
}

#chart-stage.is-clickable {
  cursor: pointer;
}

#chart-stage svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.chart-controls {
  display: none;
}

.chart-legend-bar {
  padding: 0.45rem 0;
  font-family: "Selecta", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: var(--body-size);
  color: var(--text);
  min-height: 2.25rem;
  background: var(--bg-margin);
}

.chart-legend-bar strong {
  color: var(--text);
  font-weight: 400;
  text-transform: uppercase;
}

.section {
  min-height: 100vh;
  height: 100vh;
  padding: calc(var(--strip-h) + var(--snap-gap)) var(--pad-right) calc(var(--strip-h) + var(--snap-gap)) var(--pad-left);
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
  box-sizing: border-box;
}

.section--intro,
.section--conclusion {
  min-height: 100vh;
  height: 100vh;
}

.section--ch5-dual {
  min-height: 200vh;
  height: 200vh;
  padding: 0;
  overflow: visible;
  scroll-snap-align: start;
  scroll-snap-stop: normal;
}

.section--ch5-dual .section__pin {
  position: sticky;
  top: calc(var(--strip-h) + var(--snap-gap));
  height: calc(100vh - var(--strip-h) * 2 - var(--snap-gap) * 2);
  padding: 0 var(--pad-right) 0 var(--pad-left);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
  box-sizing: border-box;
}

.takeaway-label {
  color: var(--accent);
}

.section__header {
  display: block;
  margin-bottom: 0.75rem;
}

.section h1,
.section h2 {
  font-size: var(--body-size);
  font-weight: 400;
  margin: 0 0 0.5rem;
  line-height: var(--line-height);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
}

.section p {
  margin: 0 0 0.5rem;
  max-width: 34em;
  color: var(--text);
  font-size: var(--body-size);
  text-align: justify;
  hyphens: auto;
}

.section p strong,
.section em {
  color: var(--text);
  font-style: normal;
  font-weight: 400;
}

.sources {
  margin-top: 1.35rem;
  font-size: var(--body-size);
  color: var(--text);
}

.sources__heading {
  margin: 0 0 0.5rem;
  font-size: var(--body-size);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sources p {
  margin: 0 0 0.25rem;
  font-size: var(--body-size);
  text-align: left;
  hyphens: none;
}

.sources a {
  color: var(--text);
  text-decoration: none;
}

.sources a:hover {
  color: var(--text);
  background: none;
}

.axis text {
  fill: var(--text);
  font-family: "Selecta", "Helvetica Neue", Helvetica, sans-serif;
  font-size: 9px;
  letter-spacing: 0.04em;
}

.axis path,
.axis line {
  stroke: var(--text);
}

.chart-recap {
  font-size: var(--body-size);
  fill: var(--text);
}

.chart-title {
  font-family: "Helvetica Neue", Helvetica, sans-serif;
  font-size: var(--body-size);
  font-weight: 400;
  fill: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chart-subtitle {
  font-size: var(--body-size);
  fill: var(--text);
  letter-spacing: 0.02em;
}

.legend-item text {
  font-size: 9px;
  fill: var(--text);
  letter-spacing: 0.03em;
}

.annotation-band {
  fill: #ffffff;
  stroke: var(--text);
  stroke-width: 1;
}

.annotation-label {
  font-size: 9px;
  fill: var(--text);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (max-width: 960px) {
  :root {
    --mobile-chart-h: min(36vh, 300px);
    --pad-right: 1.25rem;
    --pad-left: 1.25rem;
    --body-size: 16px;
    --view-h: var(--mobile-chart-h);
  }

  html {
    scroll-snap-type: y proximity;
    scroll-padding-top: calc(var(--strip-h) + var(--snap-gap));
    scroll-padding-bottom: calc(var(--strip-h) + var(--mobile-chart-h) + var(--snap-gap) * 2);
  }

  .doc-strip {
    font-size: 14px;
    line-height: 1.2;
    flex-wrap: wrap;
    gap: 0.2rem 0.75rem;
    min-height: var(--strip-h);
    height: auto;
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
  }

  .layout {
    display: block;
    min-height: auto;
  }

  .layout__text {
    padding-bottom: calc(var(--mobile-chart-h) + var(--strip-h) + var(--snap-gap));
  }

  .layout__divider {
    top: auto;
    left: 0;
    right: 0;
    bottom: calc(var(--strip-h) + var(--mobile-chart-h));
    width: 100%;
    height: 1px;
  }

  .layout__chart {
    position: fixed;
    top: auto;
    left: 0;
    right: 0;
    bottom: var(--strip-h);
    height: var(--mobile-chart-h);
    padding: 0.25rem var(--pad-right) 0.15rem var(--pad-left);
    z-index: 10;
    background: var(--bg-margin);
  }

  .chart-legend-bar {
    padding: 0.2rem 0;
    font-size: 12px;
    line-height: 1.2;
    min-height: 1.5rem;
  }

  .chart-legend-bar img {
    width: 11px !important;
    height: 11px !important;
  }

  #chart-stage.is-compact svg .axis text,
  #chart-stage.is-compact svg .annotation-label,
  #chart-stage.is-compact svg .gap-panel-title {
    font-size: 7px !important;
  }

  .section,
  .section--intro,
  .section--conclusion {
    min-height: calc(100vh - var(--strip-h) * 2 - var(--mobile-chart-h) - var(--snap-gap) * 2);
    height: auto;
    padding: calc(var(--strip-h) + var(--snap-gap)) var(--pad-right) var(--snap-gap) var(--pad-left);
    scroll-snap-align: start;
    scroll-snap-stop: normal;
    overflow: visible;
  }

  .section p {
    max-width: none;
  }
}

@media (max-width: 480px) {
  :root {
    --mobile-chart-h: min(32vh, 260px);
    --body-size: 15px;
    --strip-h: 3.25rem;
  }

  .doc-strip {
    font-size: 12px;
    letter-spacing: 0.04em;
  }

  .chart-legend-bar {
    font-size: 11px;
    min-height: 1.35rem;
  }
}