:root {
  /* Charte alignée Observatoire des Polycrises (labo chaleur océanique) */
  --obs-blue-800: #1e40af;
  --obs-blue-600: #2563eb;
  --obs-blue-100: #dbeafe;
  --obs-blue-50: #eff6ff;
  --obs-slate-900: #0f172a;
  --obs-slate-500: #64748b;
  --obs-slate-200: #e2e8f0;
  --obs-slate-50: #f8fafc;
  --obs-amber-100: #fef3c7;
  --obs-amber-800: #92400e;

  --bg: var(--obs-slate-50);
  --bg-hero: var(--obs-slate-50);
  --surface: #ffffff;
  --text: var(--obs-slate-900);
  --muted: var(--obs-slate-500);
  --muted-accessible: #475569;
  --accent: var(--obs-blue-600);
  --accent-strong: var(--obs-blue-800);
  --accent-soft: var(--obs-blue-100);
  --warn: #c64600;
  --border: var(--obs-slate-200);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max-width: 80rem;
  --content-pad-x: 1.5rem;
  --radius: 0.75rem;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Mobile HD : netteté texte / sous-pixels (pas de mode SD) */
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 0.5rem 0.75rem;
  background: var(--obs-slate-900);
  color: #fff;
  border-radius: var(--radius);
  z-index: 1001;
  text-decoration: none;
  font-size: 0.9rem;
}

.obs-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: none;
}

.obs-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.65rem var(--content-pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.obs-logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.obs-logo-img {
  height: 3.25rem;
  width: auto;
  max-width: min(220px, 42vw);
}

.obs-nav {
  display: none;
  align-items: center;
  gap: 0.35rem 1rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.obs-nav__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
}

.obs-nav__link:hover {
  color: var(--accent-strong);
}

.obs-nav__link--highlight {
  color: var(--accent-strong);
}

.obs-menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  cursor: pointer;
  flex-shrink: 0;
}

.obs-menu-toggle:hover {
  border-color: var(--accent);
}

.obs-menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.obs-menu-icon,
.obs-menu-icon::before,
.obs-menu-icon::after {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  position: relative;
}

.obs-menu-icon::before,
.obs-menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.obs-menu-icon::before {
  top: -5px;
}

.obs-menu-icon::after {
  top: 5px;
}

.obs-mobile-menu {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 0.5rem var(--content-pad-x) 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.obs-mobile-menu[hidden] {
  display: none !important;
}

.obs-mobile__link {
  display: block;
  padding: 0.55rem 0.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.obs-mobile__link:hover {
  color: var(--accent-strong);
}

.page-hero-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.55rem;
}

.badge-lab {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--obs-amber-100);
  color: var(--obs-amber-800);
  white-space: nowrap;
}

/* UX-P0-05 — statut CL-12 / staging (pas diffusion grand public) */
.badge-review {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #9a3412;
  background: #fff7ed;
  border: 1px solid #fdba74;
  white-space: nowrap;
  cursor: help;
}

.badge-review[hidden] {
  display: none !important;
}

.footer-review {
  margin: 0.35rem 0 0.5rem;
  padding: 0.4rem 0.65rem;
  max-width: 42rem;
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.4;
  color: #9a3412;
  background: rgba(255, 247, 237, 0.9);
  border-left: 3px solid #ea580c;
  border-radius: 0 6px 6px 0;
}

.related-lab-link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-strong);
  text-decoration: none;
}

.related-lab-link:hover {
  text-decoration: underline;
}

.lab-subtitle {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.site-header {
  background: var(--bg-hero);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem var(--content-pad-x) 0;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.header-scope {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-bottom: 1rem;
}

header h1 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  text-transform: none;
  letter-spacing: -0.025em;
  color: var(--accent-strong);
}

.subtitle,
.hint,
.mode-ref {
  color: var(--muted-accessible);
  font-size: 1rem;
  margin: 0.35rem 0 0;
}

.perimeter {
  margin: 0.85rem 0 0;
  padding: 0.65rem 0.9rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--muted);
  background: rgba(37, 99, 235, 0.06);
  border-left: 3px solid rgba(37, 99, 235, 0.35);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: 52rem;
}

.onboard {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem var(--content-pad-x);
  background: #fffbeb;
  border-bottom: 1px solid #fef3c7;
  font-size: 0.82rem;
  color: #92400e;
  line-height: 1.45;
}

.onboard[hidden] {
  display: none !important;
}

.onboard p {
  margin: 0;
  flex: 1;
}

.onboard-dismiss {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  border: none;
  border-radius: 0.35rem;
  background: transparent;
  color: #b45309;
  cursor: pointer;
  font-size: 0.9rem;
}

.onboard-dismiss:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.intro-snapshot {
  margin-bottom: 1.5rem;
  padding: 1.1rem 1.25rem;
}

.intro-snapshot-title {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.intro-snapshot-body {
  display: grid;
  gap: 0.65rem;
}

.intro-metric {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.5rem;
  font-size: 0.95rem;
  line-height: 1.45;
}

.intro-metric strong {
  color: var(--accent-strong);
  font-size: 1.05rem;
}

.intro-metric-label {
  color: var(--muted);
  font-size: 0.82rem;
}

.intro-snapshot-note,
.intro-h15-disclaimer {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
}

.intro-h15-disclaimer {
  padding: 0.55rem 0.75rem;
  background: rgba(37, 99, 235, 0.05);
  border-radius: 0.5rem;
  border-left: 3px solid rgba(37, 99, 235, 0.25);
}

.tip-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  margin-left: 0.2rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  vertical-align: middle;
}

.tip-btn--sm {
  width: 1rem;
  height: 1rem;
  font-size: 0.62rem;
}

.tip-btn::after {
  content: "";
  position: absolute;
  inset: -8px;
}

.tip-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.label-with-tip {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
}

.content-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem var(--content-pad-x) 3rem;
}

.content-wrap:focus {
  outline: none;
}

.view-toggle button,
.mode-tabs button,
.window-toggle button,
.estimator-toggle button,
.societe-ref-toggle button {
  font-family: inherit;
}

.view-toggle button {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.view-toggle button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.view-toggle button:focus-visible,
.mode-tabs button:focus-visible,
.window-toggle button:focus-visible,
.estimator-toggle button:focus-visible,
.societe-ref-toggle button:focus-visible,
.chart-mode-btn:focus-visible,
.chart-unit-btn:focus-visible,
.presentation-toggle button:focus-visible,
.card .help-link:focus-visible,
.card-help:focus-visible,
#help-close:focus-visible,
#timeline-canvas:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.view-toggle button.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 600;
}

.presentation-bar {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  flex-shrink: 0;
}

.presentation-toggle {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.2rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.presentation-toggle button {
  padding: 0.4rem 0.85rem;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.presentation-toggle button:hover {
  color: var(--accent-strong);
}

.presentation-toggle button.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.presentation-hint {
  margin: 0;
  max-width: 18rem;
  text-align: right;
  font-size: 0.78rem;
}

/* AH-P2 - partage, export, lecture calme */
.share-export-mount {
  margin-top: 0.65rem;
  width: 100%;
}

.share-export-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding: 0.45rem 0.6rem;
  border-radius: 0.45rem;
  background: var(--surface-elevated, #f8fafc);
  border: 1px solid var(--border, #e2e8f0);
}

.share-export-btn {
  font-size: 0.78rem;
  padding: 0.35rem 0.65rem;
  border-radius: 0.35rem;
  border: 1px solid var(--border, #cbd5e1);
  background: var(--surface, #fff);
  color: inherit;
  cursor: pointer;
}

.share-export-btn:hover {
  border-color: var(--accent, #2563eb);
}

.share-export-btn--calm[aria-pressed="true"] {
  background: var(--accent-soft, #dbeafe);
  border-color: var(--accent, #2563eb);
}

.share-export-status {
  font-size: 0.75rem;
  color: var(--text-muted, #64748b);
  margin: 0.35rem 0 0;
}

body[data-bombastic-calm="1"] .timeline-anim-dot,
body[data-bombastic-calm="1"] .hero-conversions .metaphor-flash {
  animation: none !important;
}

body[data-bombastic-calm="1"] .mode-tab--metaphore {
  opacity: 0.85;
}

.step-cursor-strip {
  margin: 0 0 1rem;
  padding: 0.65rem 0.9rem;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: var(--radius);
  font-weight: 600;
  color: var(--accent-strong);
}

.view-step-explorer #timeline-panel,
.view-step-perspectives #timeline-panel,
.view-step-contexte #timeline-panel,
.view-step-chiffre #timeline-panel {
  margin-top: 0;
}

.view-step-perspectives #timeline-panel,
.view-step-contexte #timeline-panel {
  margin-bottom: 1.25rem;
}

.view-step-perspectives .chart-canvas,
.view-step-contexte .chart-canvas,
.view-step-chiffre .chart-canvas {
  min-height: 260px;
}

.view-step-perspectives #comparisons-panel {
  margin-top: 0;
}

.view-step-perspectives .comparisons-panel {
  margin-bottom: 1.5rem;
}

.view-step-contexte #energy-balance-panel {
  margin-top: 0;
}

.view-step-explorer .chart-canvas {
  min-height: 320px;
}

.explorer-chart-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(11.5rem, 15.5rem);
  gap: 1rem 1.25rem;
  align-items: start;
  margin-top: 0.5rem;
}

.explorer-chart-main {
  min-width: 0;
}

.explorer-cursor-panel {
  padding: 0.85rem 1rem;
  background: var(--obs-slate-50);
  border: none;
  border-left: 1px solid #e0e0e0;
  border-radius: 0;
  box-shadow: none !important;
}

.explorer-panel-title {
  margin: 0 0 0.65rem;
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--accent-strong);
}

.explorer-panel-year {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
}

.explorer-panel-period {
  margin: 0 0 0.75rem;
  font-size: 0.82rem;
}

.explorer-panel-unavail {
  margin: 0.5rem 0 0;
  line-height: 1.45;
}

.explorer-metrics {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.explorer-metric {
  margin: 0;
}

.explorer-metric-label {
  margin: 0 0 0.2rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted-accessible);
}

.explorer-metric-value {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-strong);
  line-height: 1.2;
}

.explorer-metric-zj {
  font-size: 1.5rem;
}

.explorer-metric-sub {
  margin: 0.15rem 0 0;
  font-size: 0.88rem;
  color: var(--text);
}

.explorer-metric-unit {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-left: 0.2rem;
}

.explorer-metric-hac {
  font-size: 1.05rem;
}

/* UX-P2-06 — drip H15 agrandi (×~1,8) pour lisibilité métaphore */
.explorer-metric--drip {
  padding: 0.75rem 0.85rem 0.85rem;
  margin-top: 0.35rem;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.06) 0%, rgba(255, 247, 237, 0.55) 100%);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 12px;
}

.explorer-metric--drip .explorer-metric-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-strong);
  margin-bottom: 0.35rem;
}

.explorer-drip-stage {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin: 0.25rem 0 0.35rem;
}

.explorer-drip-readout {
  flex: 1 1 8rem;
  min-width: 7rem;
  text-align: center;
}

.explorer-metric--drip .explorer-metric-value {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  line-height: 1.05;
}

.explorer-metric-h15 {
  font-size: clamp(2.1rem, 6.5vw, 2.85rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: #c2410c;
  letter-spacing: -0.02em;
}

.explorer-metric--drip .explorer-metric-unit {
  margin-left: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: #9a3412;
}

.h15-drip-track {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 0 0 auto;
  margin: 0;
  height: 10.5rem;
  min-width: 4.5rem;
}

.h15-drip-bag-svg {
  width: 3.75rem;
  height: auto;
  display: block;
}

.h15-drip-tube {
  width: 5px;
  height: 1.1rem;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.5), rgba(37, 99, 235, 0.22));
  border-radius: 3px;
}

.h15-drip-zone {
  position: relative;
  width: 4.25rem;
  height: 5.75rem;
  overflow: hidden;
}

.h15-drip-drop {
  position: absolute;
  left: 50%;
  top: 0;
  width: 1rem;
  height: 1.25rem;
  margin-left: -0.5rem;
  background: radial-gradient(ellipse at 50% 30%, #6b7280 0%, #374151 70%);
  border-radius: 50% 50% 45% 45%;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.15);
  opacity: 0;
  animation: h15-drip-fall var(--drip-period, 1s) linear infinite;
}

.h15-drip-drop::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  background: #c53030;
  border-radius: 50%;
}

.h15-drip-drop--2 {
  animation-delay: calc(var(--drip-period, 1s) * 0.33);
}

.h15-drip-drop--3 {
  animation-delay: calc(var(--drip-period, 1s) * 0.66);
}

@keyframes h15-drip-fall {
  0% {
    transform: translateY(-0.55rem) scale(0.9);
    opacity: 0;
  }
  8% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  88% {
    opacity: 1;
  }
  100% {
    transform: translateY(5.2rem) scale(1.05);
    opacity: 0;
  }
}

.explorer-drip-hint {
  margin: 0.45rem 0 0;
  font-size: 0.88rem;
  line-height: 1.45;
  max-width: 28rem;
}

.explorer-drip-more {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  font-weight: 700;
}

.explorer-drip-more a {
  color: var(--obs-blue-700, #1d4ed8);
  text-decoration: none;
}

.explorer-drip-more a:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .explorer-metric--drip {
    padding: 0.85rem 0.75rem 1rem;
  }

  .explorer-drip-stage {
    flex-direction: column;
    gap: 0.65rem;
  }

  .h15-drip-track {
    height: 11.5rem;
  }

  .h15-drip-zone {
    height: 6.25rem;
  }

  .h15-drip-bag-svg {
    width: 4.1rem;
  }

  .explorer-metric-h15 {
    font-size: clamp(2.35rem, 11vw, 3rem);
  }

  @keyframes h15-drip-fall {
    0% {
      transform: translateY(-0.55rem) scale(0.9);
      opacity: 0;
    }
    8% {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
    88% {
      opacity: 1;
    }
    100% {
      transform: translateY(5.7rem) scale(1.05);
      opacity: 0;
    }
  }
}

.explorer-panel-consequence {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px dashed rgba(37, 99, 235, 0.22);
}

.explorer-consequence-text {
  margin: 0.25rem 0 0;
  font-size: 0.84rem;
  line-height: 1.45;
  color: var(--text);
}

@media (max-width: 820px) {
  .explorer-chart-layout {
    grid-template-columns: 1fr;
  }

  .explorer-cursor-panel {
    order: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .h15-drip-drop:not(.h15-drip-drop--static) {
    animation: none;
    opacity: 0;
  }
  .h15-drip-drop--static {
    animation: none;
    opacity: 0.9 !important;
  }
}

.page-nav__link--cross {
  margin-left: auto;
  border-style: dashed;
}

@media (max-width: 720px) {
  .presentation-bar {
    align-items: stretch;
    width: 100%;
  }
  .presentation-hint {
    text-align: left;
    max-width: none;
  }
}

.view-essential .methods-only {
  display: none !important;
}

.hero {
  margin-bottom: 1.75rem;
  background: linear-gradient(145deg, #ffffff 0%, var(--obs-blue-50) 55%, #ffffff 100%);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--shadow);
  padding: 1.75rem 2rem 1.5rem;
}

.view-essential .hero {
  margin-bottom: 1rem;
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
}

.view-essential #timeline-panel {
  margin-top: 0;
  border-top-left-radius: 0.5rem;
  border-top-right-radius: 0.5rem;
}

.view-essential #timeline-panel .timeline-period-readout {
  padding: 0.65rem 0.9rem;
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 0.5rem;
  font-size: 0.92rem;
  line-height: 1.45;
}

.view-essential .block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.75rem;
}

.view-essential .block h2 {
  font-size: 1.2rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--accent-strong);
  margin-bottom: 0.5rem;
}

.view-essential .block > .hint:first-of-type {
  margin-top: 0;
  margin-bottom: 1rem;
}

.hero-year-row {
  margin: 0 0 0.1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.hero-year-val {
  display: inline-block;
  margin-left: 0.15rem;
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  font-weight: 750;
  line-height: 1.05;
  color: var(--accent-strong);
  letter-spacing: -0.02em;
}

.hero-window-line {
  margin: 0 0 0.65rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent);
}

.hero-ref-label {
  margin: 0 0 0.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.hero-tw-block {
  margin-bottom: 0.75rem;
}

.hero-zj-row {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.hero-zj-row .hero-zj-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.hero-zj-row .hero-zj-label {
  font-weight: 500;
  color: var(--muted);
  font-size: 0.92rem;
}

.hero-hierarchy-note {
  margin: 0.5rem 0 0;
  font-size: 0.88rem;
  max-width: 42rem;
}

.text-disclosure {
  margin: 0.5rem 0 0;
  max-width: 42rem;
}

.text-disclosure-bar {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}

.text-disclosure-toggle {
  flex: 1 1 auto;
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
  padding: 0.35rem 0.45rem;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--obs-slate-50);
  font: inherit;
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--muted-accessible);
  text-align: left;
  cursor: pointer;
}

.text-disclosure-toggle:hover {
  border-color: rgba(37, 99, 235, 0.25);
  color: var(--text);
}

.text-disclosure-chevron {
  flex: 0 0 auto;
  width: 0.55rem;
  height: 0.55rem;
  margin-top: 0.35rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 0.15s ease;
  opacity: 0.7;
}

.text-disclosure.is-expanded .text-disclosure-chevron {
  transform: rotate(45deg);
  margin-top: 0.2rem;
}

.text-disclosure-hide {
  flex: 0 0 auto;
  width: 1.65rem;
  height: 1.65rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.text-disclosure-hide:hover {
  color: var(--text);
  border-color: rgba(100, 116, 139, 0.45);
}

.text-disclosure-body {
  display: none;
  margin: 0.45rem 0 0;
  padding: 0.55rem 0.65rem;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--muted-accessible);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.text-disclosure.is-expanded .text-disclosure-body {
  display: block;
}

.text-disclosure-restore {
  display: none;
  margin: 0.35rem 0 0;
  padding: 0;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
}

.text-disclosure.is-hidden .text-disclosure-bar,
.text-disclosure.is-hidden .text-disclosure-body {
  display: none;
}

.text-disclosure.is-hidden .text-disclosure-restore {
  display: inline-block;
}

.chart-panel-sub.text-disclosure,
#timeline-subtitle.text-disclosure {
  margin-bottom: 0.65rem;
}

.chart-overlap-disclosure,
.explorer-overlap-disclosure {
  flex: 1 1 100%;
  width: 100%;
  max-width: none;
}

.timeline-year-slider {
  margin: 0.65rem 0 0;
  padding: 0.55rem 0.65rem;
  background: var(--obs-slate-50);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.timeline-slider-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  font-size: 0.88rem;
  color: var(--muted-accessible);
}

.timeline-slider-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-strong);
  font-variant-numeric: tabular-nums;
  text-align: right;
  line-height: 1.35;
}

.timeline-year-slider[data-slider-role="table"] .timeline-slider-label {
  align-items: flex-start;
}

.timeline-year-slider[data-slider-role="table"] .timeline-slider-value {
  font-size: 0.92rem;
  max-width: 72%;
}

.timeline-slider-input {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

/* ── UX-P1-01 — design system contrôles (boutons + sliders) ── */
.btn-primary,
.btn-secondary {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 6px;
  font: 600 0.9rem/1.2 system-ui, sans-serif;
  padding: 0.5rem 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--obs-blue-600, #2563eb);
  color: #fff;
  border-color: var(--obs-blue-800, #1e40af);
}

.btn-primary:hover:not(:disabled) {
  background: var(--obs-blue-800, #1e40af);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: #fff;
  color: var(--obs-blue-800, #1e40af);
  border-color: var(--border, #e2e8f0);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--obs-blue-50, #eff6ff);
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--obs-blue-600, #2563eb);
  outline-offset: 2px;
}

.btn-primary[hidden],
.btn-secondary[hidden] {
  display: none !important;
}

/* Slider année unifié (app timeline + visite + métaphore) */
.bombastic-range,
.timeline-slider-input,
.visite-year-slider,
.metaphore-page .metaphore-slider-wrap input[type="range"] {
  display: block;
  width: 100%;
  height: 1.75rem;
  margin: 0;
  accent-color: #ea580c;
  cursor: pointer;
}

.mode-advanced {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  margin: 0;
  border: none;
  padding: 0;
  min-width: 0;
}

.mode-advanced > summary {
  list-style: none;
  cursor: pointer;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  user-select: none;
}

.mode-advanced > summary::-webkit-details-marker {
  display: none;
}

.mode-advanced > summary::after {
  content: " ▾";
  font-size: 0.75em;
  opacity: 0.75;
}

.mode-advanced[open] > summary {
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.7);
}

.mode-advanced__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.35rem;
  padding: 0.35rem;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  border-radius: 12px;
}

/* UX-P1-03 — étapes secondaires (4+) légèrement atténuées, toujours cliquables */
.page-nav__link--secondary {
  opacity: 0.92;
  border-style: dashed;
}

/* UX-P1-05 — CTA Méthodes permanent */
.methods-cta-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.45rem var(--content-pad-x) 0.15rem;
}

.methods-cta-bar a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--obs-blue-700, #1d4ed8);
  text-decoration: none;
  padding: 0.35rem 0.15rem;
}

.methods-cta-bar a:hover {
  text-decoration: underline;
}

.methods-cta-bar a:focus-visible {
  outline: 2px solid var(--obs-blue-600, #2563eb);
  outline-offset: 2px;
  border-radius: 4px;
}

.timeline-period-readout {
  margin: 0.75rem 0 0;
  font-weight: 600;
  color: var(--accent);
}

.comparisons-panel {
  padding: 1.25rem 1.35rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.comparisons-header {
  margin-bottom: 1rem;
}

.comparisons-heading-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  margin-bottom: 0.85rem;
}

.comparisons-heading-row h2 {
  margin: 0;
}

.mode-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 999px;
  white-space: nowrap;
}

.comparison-period-context {
  margin: 0;
}

.comparison-context-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  background: linear-gradient(180deg, var(--obs-blue-50) 0%, #f8fafc 100%);
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: var(--radius);
}

.comparison-context-cell {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.comparison-context-cell--accent {
  padding-left: 0.85rem;
  border-left: 2px solid rgba(37, 99, 235, 0.2);
}

.comparison-context-cell--status {
  align-items: flex-start;
  justify-content: center;
}

.comparison-context-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.comparison-context-value {
  font-size: 1.15rem;
  font-weight: 750;
  line-height: 1.2;
  color: var(--accent-strong);
}

.comparison-context-cell--accent .comparison-context-value {
  font-size: 1.35rem;
  color: var(--accent);
}

.comparison-context-detail {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.comparison-context-fallback {
  margin: 0;
  padding: 0.65rem 0.9rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--accent-strong);
  background: var(--obs-blue-50);
  border-radius: var(--radius);
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.comparisons-toolbar {
  margin-bottom: 1rem;
}

.comparisons-toolbar .mode-tabs {
  width: 100%;
  border-radius: var(--radius);
}

.comparisons-body {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.comparisons-panel .mode-ref {
  margin-top: 0.35rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  line-height: 1.5;
}

.comparisons-panel #si-metrics {
  display: none;
}

.comparison-period-banner {
  margin: 0 0 1rem;
  padding: 0.55rem 0.85rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--accent-strong);
  background: var(--obs-blue-50);
  border-radius: 0.5rem;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.comparison-unavailable {
  padding: 1rem;
  background: rgba(139, 156, 179, 0.12);
  border-radius: 8px;
  color: var(--muted);
}

.acceleration-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

@media (max-width: 640px) {
  .acceleration-panel {
    grid-template-columns: 1fr;
  }
}

.accel-col {
  padding: 1.1rem 1.25rem;
  background: var(--obs-slate-50);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.accel-col h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.accel-period {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.accel-tw {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.accel-evolution {
  grid-column: 1 / -1;
  padding: 0.85rem 1.1rem;
  background: var(--obs-blue-50);
  border-radius: var(--radius);
  border: 1px solid rgba(37, 99, 235, 0.12);
}

.accel-societe {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(139, 156, 179, 0.2);
}

.societe-ref-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0.75rem 0;
}

.societe-ref-toggle button {
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(139, 156, 179, 0.35);
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.societe-ref-toggle button.active {
  background: rgba(44, 165, 141, 0.15);
  border-color: var(--accent, #2ca58d);
}

.societe-ref-note {
  flex: 1 1 100%;
  margin: 0.25rem 0 0;
}

.societe-period-ref {
  margin: 0.35rem 0 0.75rem;
  padding: 0.5rem 0.75rem;
  background: rgba(139, 156, 179, 0.1);
  border-radius: 6px;
}

.card-period-meta {
  margin: 0.35rem 0 0.25rem;
  font-size: 0.82rem;
}

.hero-tw .hero-tw-val {
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 750;
  color: var(--accent);
  line-height: 1;
}

.hero-tw .hero-tw-unit {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--muted);
  margin-left: 0.35rem;
}

/* UX-P0-02 — garde-fou sous le TW */
.tw-not-instant {
  margin: 0.4rem 0 0.15rem;
  max-width: 36rem;
  padding: 0.4rem 0.65rem;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.35;
  color: #9a3412;
  background: rgba(254, 243, 199, 0.65);
  border-left: 3px solid #ea580c;
  border-radius: 0 6px 6px 0;
}

.tw-not-instant--compact {
  margin: 0.35rem 0 0;
  padding: 0.3rem 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  max-width: none;
}

/* UX-P0-03 — bannière éthique H15 (sticky, non scrollable-away) */
.h15-ethics-banner {
  position: sticky;
  top: 0;
  z-index: 40;
  margin: 0 0 0.85rem;
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.35;
  color: #7c2d12;
  background: #fff7ed;
  border: 1px solid #fdba74;
  border-left: 4px solid #ea580c;
  border-radius: 0 8px 8px 0;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

.h15-ethics-banner[hidden] {
  display: none !important;
}

.metaphore-page .h15-ethics-banner {
  top: 0.25rem;
}

.hero-tw-caption {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.chart-stock-anomaly-note {
  flex: 1 1 100%;
  margin: 0.35rem 0 0;
  padding: 0.45rem 0.65rem;
  background: rgba(139, 156, 179, 0.1);
  border-radius: 6px;
  line-height: 1.45;
  max-width: 42rem;
}

.hero-lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 500;
  line-height: 1.5;
  margin: 0.75rem 0 0.5rem;
  color: var(--text);
  max-width: 42rem;
}

.hero-accel {
  margin: 0 0 0.85rem;
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--accent-strong);
  background: rgba(37, 99, 235, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 0.5rem 0.5rem 0;
  max-width: 44rem;
}

.hero-accel.text-disclosure,
.hero-explain.text-disclosure,
.hero-tw-explain.text-disclosure,
#page-subtitle.text-disclosure,
#lab-subtitle.text-disclosure,
.accel-societe.text-disclosure {
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

.hero-accel.text-disclosure .text-disclosure-body,
.hero-explain.text-disclosure .text-disclosure-body,
.hero-tw-explain.text-disclosure .text-disclosure-body {
  color: var(--accent-strong);
  background: rgba(37, 99, 235, 0.08);
  border-left: 3px solid var(--accent);
  border-radius: 0 0.5rem 0.5rem 0;
}

.hero-explain {
  margin: 0.85rem 0 0;
  font-size: 0.88rem;
  line-height: 1.5;
  max-width: 44rem;
}

.hero-tw-explain.text-disclosure {
  margin-top: 0.35rem;
}

#page-subtitle.text-disclosure,
#lab-subtitle.text-disclosure {
  margin-top: 0.35rem;
  max-width: 52rem;
}

.hero-conversions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.hero-conversions span {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--accent-strong);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.hero-conversions span::before {
  content: none;
}

.block {
  margin-bottom: 2.5rem;
}

.block h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  text-transform: none;
}

.block-chart {
  width: 100%;
}

.chart-canvas {
  width: 100%;
  display: block;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  touch-action: pan-y;
}

.chart-dual-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

.chart-panel {
  padding: 0.85rem 0.95rem 0.75rem;
  background: var(--obs-slate-50);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.chart-panel-title {
  margin: 0 0 0.2rem;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--accent-strong);
}

.chart-panel-sub {
  margin: 0 0 0.65rem;
  line-height: 1.45;
}

.chart-panel--rate .chart-unit-bar {
  margin-bottom: 0.5rem;
}

.chart-wrap--stock .chart-canvas,
.chart-wrap--rate .chart-canvas {
  min-height: 180px;
}

.chart-unit-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.45rem;
  margin: 0 0 0.55rem;
}

.chart-mode-row,
.chart-rate-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.chart-rate-row {
  padding-left: 0.15rem;
  border-left: 2px solid var(--border);
  margin-left: 0.25rem;
}

.chart-mode-btn {
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

.chart-mode-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.chart-mode-btn.active,
.chart-mode-btn[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.chart-unit-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-right: 0.15rem;
}

.chart-unit-btn {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
}

.chart-unit-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.chart-unit-btn.active,
.chart-unit-btn[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.chart-unit-note {
  margin: 0 0 0.65rem;
}

.chart-dual-lead {
  margin: 0.2rem 0 0.65rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  max-width: 52rem;
}

.chart-panel-sub.text-disclosure {
  margin: 0.15rem 0 0.5rem;
}

.timeline-controls {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.timeline-play-btn {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 0.85rem;
  cursor: pointer;
  line-height: 1;
}

.timeline-play-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.timeline-play-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.timeline-play-btn.is-playing {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.help-event-fiche {
  margin-top: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-left: 3px solid var(--accent);
  background: var(--obs-blue-50);
  font-size: 0.92rem;
}

.help-event-fiche-title {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.help-event-fiche-list {
  margin: 0.25rem 0 0.5rem 1.1rem;
  padding: 0;
}

.event-fiches-panel {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.event-fiches-heading {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

.event-fiche-card {
  margin-bottom: 0.65rem;
  padding: 0.65rem 0.75rem;
  background: var(--obs-slate-50);
  border-radius: 0.5rem;
  border: 1px solid var(--border);
}

.event-fiche-card-title {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}

.timeline-period-readout {
  margin: 0;
  flex: 1;
}

.sankey-figure {
  margin: 0.75rem 0 0;
}

.energy-balance-diagram {
  width: 100%;
  border-radius: 0;
  border: 1px solid var(--border);
  background: var(--obs-slate-50);
  overflow-x: auto;
  overflow-y: hidden;
}

.energy-balance-diagram svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

@media (max-width: 640px) {
  .energy-balance-diagram { scrollbar-width: thin; }
}

.energy-balance-diagram .eb-box-title-dark {
  font-size: 13px;
  font-weight: 650;
  fill: #0f172a;
}

.energy-balance-diagram .eb-box-value-dark {
  font-size: 22px;
  font-weight: 700;
  fill: #0f172a;
}

.energy-balance-diagram .eb-box-sub-dark {
  font-size: 11px;
  fill: #334155;
}

.energy-balance-diagram .eb-arrow-label {
  font-size: 13px;
  font-weight: 700;
  fill: #0f172a;
  paint-order: stroke;
  stroke: #f8fafc;
  stroke-width: 4px;
}

.energy-balance-diagram .eb-iap-title {
  font-size: 13px;
  font-weight: 650;
  fill: var(--text);
}

.energy-balance-diagram .eb-iap-sub {
  font-size: 11px;
  fill: var(--muted);
}

.energy-balance-diagram .eb-panel-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.energy-balance-diagram .eb-panel-title--eei {
  fill: #1e3a8a;
}

.energy-balance-diagram .eb-panel-title--iap {
  fill: #065f46;
}

.energy-balance-lead {
  margin: 0.35rem 0 0.85rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  max-width: 52rem;
}

.energy-balance-footnote {
  margin: 0.65rem 0 0;
  padding: 0.55rem 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.45;
  color: #334155;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 0;
}

.sankey-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}

.energy-encart {
  display: grid;
  grid-template-columns: minmax(0, 2.45fr) minmax(0, 1fr);
  gap: 0.85rem;
  margin-top: 0.85rem;
}

@media (max-width: 720px) {
  .energy-encart {
    grid-template-columns: 1fr;
  }
}

.energy-encart-card {
  padding: 0.85rem 1rem;
  border-radius: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: none;
}

.energy-encart-card h3 {
  margin: 0 0 0.45rem;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.energy-encart-card--eei h3 {
  color: #1e40af;
}

.energy-encart-card--iap h3 {
  color: #047857;
}

.energy-encart-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

.energy-encart-card--eei {
  border-left: 3px solid rgba(37, 99, 235, 0.45);
}

.energy-encart-card--iap {
  border-left: 3px solid rgba(44, 165, 141, 0.55);
}

.energy-estimator-note {
  margin-top: 0.75rem;
  padding: 0.55rem 0.75rem;
  background: var(--accent-soft);
  border-radius: 0;
  border: 1px solid var(--border);
}

.energy-disclaimer {
  margin-top: 0.5rem;
  font-size: 0.82rem;
}

.chart-wrap {
  position: relative;
  touch-action: pan-y;
}

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  min-width: 3.25rem;
  max-width: 6.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.28rem 0.42rem;
  font-size: 0.75rem;
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  transform: translate(-50%, calc(-100% - 5px));
  white-space: normal;
  text-align: center;
  line-height: 1.2;
  z-index: 2;
}

.chart-tooltip-year {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted-accessible);
  font-variant-numeric: tabular-nums;
}

.chart-tooltip-val {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-strong);
  font-variant-numeric: tabular-nums;
}

.chart-tooltip-unit {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--muted);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 0.65rem 0 0;
  font-size: 0.92rem;
  color: var(--muted-accessible);
}

.chart-data-table {
  margin: 0.5rem 0 0;
  font-size: 0.92rem;
  color: var(--muted-accessible);
}

.chart-data-table summary {
  cursor: pointer;
  color: var(--accent-strong);
  font-weight: 600;
}

.chart-data-table summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chart-data-table-scroll {
  max-height: 14rem;
  overflow: auto;
  margin-top: 0.45rem;
}

.chart-data-table tr.is-selected th,
.chart-data-table tr.is-selected td {
  font-weight: 700;
  color: var(--accent-strong);
}

.data-status-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.3;
  padding: 0.2rem 0.5rem;
  border-radius: 0.25rem;
  background: var(--obs-blue-100);
  color: var(--accent-strong);
  border: 1px solid var(--obs-blue-600);
  vertical-align: middle;
}

.data-status-badge[data-status="observed"] {
  background: #dcfce7;
  border-color: #16a34a;
  color: #166534;
}

.data-status-badge[data-status="reconstructed"] {
  background: var(--obs-amber-100);
  border-color: #d97706;
  color: var(--obs-amber-800);
}

.data-status-badge[data-status="mixed"] {
  background: #e0e7ff;
  border-color: #6366f1;
  color: #3730a3;
}

.data-status-badge[data-status="limited"] {
  background: #f1f5f9;
  border-color: var(--obs-slate-500);
  color: var(--obs-slate-900);
}

.hero-status-row,
.explorer-panel-status,
.signal-status-row {
  margin: 0.35rem 0 0.5rem;
}

.timeline-period-readout .data-status-badge {
  margin-left: 0.35rem;
}

.load-status {
  margin: 0.5rem var(--content-pad-x) 0;
  font-size: 0.92rem;
  color: var(--muted-accessible);
}

.load-error {
  margin: 0.75rem var(--content-pad-x);
  padding: 0.75rem 1rem;
  border: 1px solid #fca5a5;
  background: #fef2f2;
  border-radius: var(--radius);
  color: #991b1b;
}

.load-error button {
  margin-top: 0.5rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid #dc2626;
  background: #fff;
  color: #b91c1c;
  border-radius: 0.35rem;
  font-weight: 600;
  cursor: pointer;
}

.load-error button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.noscript-notice {
  margin: 1rem var(--content-pad-x) 2rem;
  padding: 0.75rem 1rem;
  background: var(--obs-amber-100);
  border: 1px solid #f59e0b;
  border-radius: var(--radius);
  color: var(--obs-amber-800);
}

#mode-tabpanel:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--radius);
}

.chart-legend .leg-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.chart-legend .swatch {
  width: 14px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.chart-legend .swatch-line {
  width: 18px;
  height: 0;
  border-top: 2.5px solid #2ca58d;
}

.chart-legend .swatch-dash {
  width: 18px;
  height: 0;
  border-top: 2px dashed #f0ad4e;
}

.chart-legend .swatch-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #f0ad4e;
  box-shadow: 0 0 0 1px rgba(240, 173, 78, 0.65);
}

.chart-overlap-note {
  flex: 1 1 100%;
  margin: 0.15rem 0 0;
  line-height: 1.45;
  max-width: 42rem;
}

.window-overlap-mini {
  flex: 1 1 100%;
  margin: 0.35rem 0 0;
  width: 100%;
  max-width: none;
}

.window-overlap-mini svg {
  width: 100%;
  min-height: 72px;
  height: auto;
  display: block;
}

.text-disclosure--diagram .text-disclosure-body .window-overlap-mini {
  margin-top: 0.15rem;
}

.explorer-overlap-block {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid #e2e8f0;
}

.explorer-overlap-note {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  line-height: 1.45;
}

.readout {
  font-size: 1rem;
  color: var(--muted);
}

.slope-tooltip {
  font-size: 0.92rem;
  color: var(--muted);
  background: var(--accent-soft);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  margin: 0.5rem 0;
}

.signal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.signal-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  text-transform: none;
}

.signal-zj {
  margin-bottom: 0.15rem;
}

.signal-zj .val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-strong);
}

.signal-zj .unit {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
}

.signal-tw .val {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.view-essential .signal-sensitivity .signal-tw .val,
.view-essential .signal-secondary .signal-tw .val {
  font-size: 1.65rem;
}

.signal-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
  color: var(--muted);
}

.signal-ic {
  margin-top: 0.75rem;
  font-weight: 500;
}

.sensitivity-badge {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  background: rgba(139, 156, 179, 0.14);
  border-radius: 4px;
  padding: 0.1rem 0.45rem;
  vertical-align: middle;
}

.view-essential #signals-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 1.25rem;
}

.view-essential #signals-title,
.view-essential #signals-hint,
.view-essential .signal-primary {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .view-essential #signals-panel {
    grid-template-columns: 1fr 1fr;
  }
}

.view-essential .signal-primary .signal-card,
.view-essential .signal-card.signal-explorer-card,
.view-essential .signal-card.signal-primary-card {
  border: 2px solid rgba(37, 99, 235, 0.2);
  background: linear-gradient(180deg, #ffffff 0%, var(--obs-blue-50) 100%);
  margin-bottom: 0;
}

.view-essential .signal-card {
  margin-bottom: 0;
}

.signal-sensitivity {
  display: grid;
  gap: 0.75rem;
  margin-top: 0;
}

.signal-sensitivity-card {
  border-style: dashed;
  border-color: rgba(100, 116, 139, 0.35);
  background: var(--obs-slate-50);
}

.view-essential #signal-secondary .signal-card {
  height: 100%;
}

.block-callout {
  padding: 1rem 1.25rem !important;
  background: var(--obs-slate-50) !important;
  border-style: dashed !important;
}

.block-callout h2 {
  font-size: 1rem !important;
  margin-bottom: 0.35rem !important;
}

.block-collapsible .collapsible-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 1.2rem;
  font-weight: 650;
  color: var(--accent-strong);
  text-align: left;
  cursor: pointer;
}

.block-collapsible .collapsible-trigger::after {
  content: "▸";
  color: var(--muted);
  font-size: 0.9rem;
  transition: transform 0.15s ease;
}

.block-collapsible.is-open .collapsible-trigger::after {
  transform: rotate(90deg);
}

.block-collapsible:not(.is-open) #recent-years-warning,
.block-collapsible:not(.is-open) #recent-years-annual,
.block-collapsible:not(.is-open) #recent-years-deltas,
.block-collapsible:not(.is-open) #recent-years-windows,
.block-collapsible:not(.is-open) #recent-years-ohc-sst {
  display: none;
}

.perimeter-limits {
  max-width: var(--max-width);
  margin: 0 auto 1.5rem;
  padding: 0 1.25rem;
}

.intro-metric-secondary {
  opacity: 0.92;
}

.primary-badge {
  font-size: 0.75rem;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 500;
}

.mode-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.4rem;
  padding: 0.35rem;
  margin-bottom: 1rem;
  background: var(--obs-slate-50);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: fit-content;
  max-width: 100%;
}

.mode-tabs button,
.window-toggle button,
.estimator-toggle button {
  padding: 0.45rem 0.95rem;
  margin: 0;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  transition: background 0.15s ease, color 0.15s ease;
}

.mode-tabs button:hover,
.window-toggle button:hover,
.estimator-toggle button:hover {
  color: var(--accent-strong);
  background: rgba(255, 255, 255, 0.7);
}

.mode-tabs button.active,
.window-toggle button.active,
.estimator-toggle button.active {
  border-color: var(--border);
  background: #fff;
  color: var(--accent-strong);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.comparator-panel {
  margin-top: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  box-shadow: none !important;
}

.comparator-title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--accent-strong);
}

.comparator-hint {
  margin: 0 0 1rem;
}

.comparator {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem 1rem;
  align-items: stretch;
}

@media (max-width: 640px) {
  .comparator {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .comparator-vs {
    display: none !important;
  }
}

.comparator-side {
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: none !important;
}

.comparator-side-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1.35;
  margin-bottom: 0.5rem;
  min-height: 2.5em;
}

.comparator-side-value {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 750;
  color: var(--accent);
  line-height: 1.1;
}

.comparator-side-unit {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
}

.comparator-side-phrase {
  margin: 0.75rem 0 0;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text);
}

.comparator-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin: auto 0;
  border-radius: 999px;
  background: var(--obs-slate-50);
  border: 1px solid var(--border);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--muted);
}

.comparator-foot {
  grid-column: 1 / -1;
  margin: 0.5rem 0 0;
  padding: 0.65rem 0.85rem;
  background: rgba(37, 99, 235, 0.06);
  border-radius: 0.5rem;
  border-left: 3px solid var(--accent);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 0.85rem;
}

.cards .card-wide {
  grid-column: 1 / -1;
  width: 100%;
}

.comparisons-panel .card,
.cards .card,
.comparison-card {
  padding: 1.1rem 1.2rem 1.15rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  border-top: 3px solid rgba(37, 99, 235, 0.35);
}

.comparison-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.65rem;
}

.comparison-card__label {
  font-size: 0.88rem;
  font-weight: 650;
  line-height: 1.4;
  color: var(--text);
  padding-right: 1.75rem;
}

.comparison-card__metric {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.5rem;
}

.comparison-card__value {
  font-size: clamp(1.85rem, 4vw, 2.35rem);
  font-weight: 750;
  line-height: 1;
  color: var(--accent);
}

.comparison-card__unit {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--muted);
}

.comparison-card__phrase {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--muted);
}

.comparison-card__ic {
  margin-top: 0.15rem;
  padding: 0.4rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.4;
  color: #334155;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 0.35rem;
}

.card-help {
  flex-shrink: 0;
  width: 1.65rem;
  height: 1.65rem;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.card-help:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.card .help-link {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  border: none;
  background: transparent;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0;
}

.signal-h15-secondary {
  margin-top: 0.65rem;
  font-size: 0.95rem;
  color: var(--text);
}

.signal-h15-note,
.h15-annual-box .hint {
  margin-top: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.h15-annual-box {
  grid-column: 1 / -1;
  margin-top: 0.5rem;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: var(--bg);
  font-size: 0.95rem;
}

.h15-annual-box strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.card .value,
.comparison-card .value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

@media (max-width: 860px) {
  .comparison-context-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comparison-context-cell--accent {
    grid-column: 1 / -1;
    padding-left: 0;
    border-left: none;
    padding-top: 0.35rem;
    border-top: 1px solid rgba(37, 99, 235, 0.12);
  }

  .comparison-context-cell--status {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .comparisons-panel {
    padding: 1rem 1rem 1.15rem;
  }

  .comparison-context-grid {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }

  .comparison-context-cell--accent {
    border-top: none;
    padding-top: 0;
  }
}

.period-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 0.75rem 0;
}

.period-table th,
.period-table td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  text-align: left;
}

.period-table th {
  background: var(--accent-soft);
}

.period-table--recent th.col-num,
.period-table--recent td.col-num {
  text-align: right;
}

.period-table--recent th.col-enso,
.period-table--recent td.col-enso {
  text-align: left;
}

.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.65rem var(--content-pad-x) 0;
}

.page-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.page-nav__link:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.page-nav__link--active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.page-nav__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
  align-self: center;
}

.page-nav__link:not(.page-nav__link--active) .page-nav__step {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.page-nav__label {
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
}

.page-flow {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 2px solid var(--border);
}

.content-flow {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--content-pad-x);
  padding-right: var(--content-pad-x);
}

.methods-flow {
  max-width: calc(var(--max-width) - 14rem);
  margin: 0 auto 1rem;
  padding: 0.85rem var(--content-pad-x) 0;
}

.page-flow__link {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1 1 0;
  max-width: 17.5rem;
  padding: 0.9rem 1.05rem;
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--accent-strong);
  text-decoration: none;
  background: var(--surface);
  border: 2px solid rgba(37, 99, 235, 0.24);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.07);
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.page-flow__link:hover {
  text-decoration: none;
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.page-flow__link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.page-flow__link--next {
  margin-left: auto;
  flex-direction: row-reverse;
}

.page-flow__copy {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
}

.page-flow__link--next .page-flow__copy {
  align-items: flex-end;
  text-align: right;
}

.page-flow__kicker {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-flow__step {
  font-size: 1.05rem;
  font-weight: 750;
  line-height: 1.2;
  color: var(--accent-strong);
}

.page-flow__arrow {
  flex-shrink: 0;
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.page-flow__spacer {
  flex: 1 1 0;
  max-width: 17.5rem;
}

@media (max-width: 560px) {
  .page-flow {
    flex-direction: column;
    gap: 0.65rem;
  }

  .page-flow__link,
  .page-flow__spacer {
    max-width: none;
    width: 100%;
  }

  .page-flow__link--next {
    margin-left: 0;
  }
}

.site-footer {
  text-align: center;
  padding: 1.25rem var(--content-pad-x) 1.75rem;
  color: var(--muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
  line-height: 1.55;
}

.site-footer p {
  margin: 0.25rem 0;
}

.footer-brand {
  font-size: 0.9rem;
  color: var(--text);
}

.footer-provenance code,
.footer-links code {
  font-size: 0.78rem;
  word-break: break-all;
}

.site-footer a {
  color: var(--accent-strong);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-note {
  font-size: 0.78rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--surface);
  padding: 1.5rem 1.75rem;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
  box-shadow: none !important;
  max-width: 32rem;
  max-height: 85vh;
  overflow-y: auto;
  margin: 1rem;
}

.modal-content h3 {
  margin: 0 0 0.75rem;
}

.modal-content #help-close {
  margin-top: 1.25rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--accent-soft);
  color: var(--accent);
  cursor: pointer;
  font-weight: 500;
}

.modal-content #help-close:hover {
  filter: brightness(0.97);
}

@media (max-width: 640px) {
  :root {
    --content-pad-x: 0.85rem;
  }

  body {
    font-size: 16px;
  }

  /* UX-P0-04 — chrome compact : graphe plus haut dans le viewport */
  .obs-header-inner {
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
  }

  .obs-logo-img {
    height: 2.25rem;
  }

  .site-header {
    padding: 0.65rem var(--content-pad-x) 0;
  }

  .header-inner {
    gap: 0.45rem 0.75rem;
  }

  .page-hero-top {
    margin-bottom: 0.2rem;
  }

  .badge-lab {
    font-size: 0.68rem;
    padding: 0.12rem 0.5rem;
  }

  .badge-review {
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    white-space: normal;
    max-width: 12rem;
    line-height: 1.25;
  }

  header h1 {
    margin-bottom: 0.15rem;
    font-size: clamp(1.15rem, 5.2vw, 1.4rem);
    line-height: 1.2;
  }

  .subtitle {
    margin-top: 0.15rem;
    font-size: 0.86rem;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .header-scope {
    padding-bottom: 0.45rem;
  }

  .perimeter {
    margin: 0.35rem 0 0;
    padding: 0.35rem 0.55rem;
    font-size: 0.75rem;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .presentation-bar {
    width: 100%;
    align-items: stretch;
    margin-top: 0.15rem;
  }

  .presentation-toggle button {
    padding: 0.32rem 0.65rem;
    font-size: 0.8rem;
  }

  .presentation-hint {
    display: none;
  }

  .page-nav {
    position: sticky;
    /* sous le header Observatoire sticky (~3.25rem mobile) */
    top: 3.25rem;
    z-index: 35;
    flex-wrap: wrap;
    overflow: visible;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    gap: 0.28rem;
    margin: 0;
    padding: 0.4rem var(--content-pad-x) 0.4rem;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--border, #e2e8f0);
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.03);
  }

  /* Nav collapsible : numéros seuls hors étape active */
  .page-nav__link {
    position: relative;
    flex-shrink: 0;
    padding: 0.32rem 0.4rem;
    font-size: 0.78rem;
    gap: 0.25rem;
  }

  .page-nav__link:not(.page-nav__link--active) .page-nav__label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .page-nav__link--active {
    padding: 0.32rem 0.65rem;
  }

  .page-nav__link--cross {
    margin-left: 0.15rem;
    padding: 0.32rem 0.55rem;
  }

  /* Garder le libellé Données visible (lien croisé) */
  .page-nav__link.page-nav__link--cross .page-nav__label,
  .page-nav__link:not(.page-nav__link--active).page-nav__link--cross .page-nav__label {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: nowrap;
  }

  .methods-cta-bar {
    padding-top: 0.3rem;
    padding-bottom: 0.1rem;
  }

  .methods-cta-bar a {
    font-size: 0.82rem;
  }

  .hero-lead {
    font-size: 1.2rem;
  }
  .signal-tw .val {
    font-size: 2rem;
  }
  .content-wrap {
    padding-top: 0.65rem;
    padding-bottom: 2rem;
  }

  .methods-flow {
    max-width: none;
  }

  /* Visite : encore moins de chrome au-dessus du graphe */
  .visite-page .site-header {
    padding-top: 0.5rem;
  }

  .visite-page .subtitle {
    -webkit-line-clamp: 1;
  }

  .visite-page .perimeter {
    -webkit-line-clamp: 1;
  }

  /* Hero contenu (chiffre / explorer) plus bas pour le graphe */
  .view-step .hero,
  .view-essential .hero {
    margin-bottom: 0.65rem;
    padding: 0.75rem 0.8rem 0.65rem;
  }

  .hero-year-row {
    margin: 0;
    font-size: 0.82rem;
  }

  .hero-year-val {
    font-size: clamp(1.55rem, 7.5vw, 2.1rem);
  }

  .hero-window-line {
    margin: 0 0 0.35rem;
    font-size: 0.8rem;
  }

  .hero-ref-label {
    margin: 0 0 0.2rem;
    font-size: 0.78rem;
  }

  .hero-zj-row {
    margin: 0 0 0.25rem;
    font-size: 0.88rem;
  }

  .hero-tw .hero-tw-val {
    font-size: clamp(1.85rem, 9vw, 2.5rem);
  }

  .hero-tw .hero-tw-unit {
    font-size: 1.05rem;
  }

  /* Garde-fou TW compact ; caption redondante masquée */
  .hero-tw-block .tw-not-instant {
    margin: 0.3rem 0 0.15rem;
    padding: 0.3rem 0.5rem;
    font-size: 0.78rem;
  }

  .hero-tw-block:has(.tw-not-instant) > .hero-tw-caption:not(.hero-tw-explain) {
    display: none;
  }

  .hero-hierarchy-note {
    display: none;
  }

  .hero-status-row {
    margin: 0.35rem 0 0;
  }

  .timeline-year-slider {
    margin-top: 0.45rem;
    padding-top: 0.45rem;
  }

  .hero-explain,
  .hero-tw-explain {
    font-size: 0.82rem;
  }

  .load-status:not([hidden]) {
    padding: 0.35rem 0.65rem;
    font-size: 0.82rem;
  }

  /* ── Mobile HD (pas SD) ── */
  /* Un seul glisseur année ; clones masqués */
  body.mobile-single-slider .timeline-year-slider:not([data-slider-role="hero"]) {
    display: none !important;
  }

  /* Timeline sticky sous nav : graphe plus haut dans le viewport */
  .view-step #timeline-panel,
  .view-step .block-chart {
    position: sticky;
    top: 6.5rem;
    z-index: 6;
    background: var(--surface, #fff);
    padding-top: 0.35rem;
  }

  .view-step .chart-canvas,
  .view-step #timeline-canvas,
  .view-step #timeline-canvas-rate,
  .view-step #timeline-canvas-stock,
  .view-step #slopes-canvas {
    min-height: 280px !important;
    height: 300px !important;
    max-width: 100%;
  }

  .view-step .chart-wrap {
    min-height: 300px;
  }

  /* Netteté : pas de scale basique, pas de text-size réduit sous 16px */
  body {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

  /* Slider tactile plus large (HD interaction) */
  .timeline-slider-input,
  .bombastic-range,
  .visite-year-slider {
    height: 2rem;
    touch-action: pan-y;
  }

  /* Masquer disclosures longs au-dessus du graphe (contenu toujours en « Lire plus » natif) */
  .view-step .hero-tw-explain.text-disclosure:not([open]),
  .view-step .hero-explain.hint {
    font-size: 0.85rem;
  }
}

@media (min-width: 768px) {
  .obs-nav {
    display: flex;
  }

  .obs-menu-toggle {
    display: none;
  }

  .obs-mobile-menu {
    display: none !important;
  }
}

@media (max-width: 390px) {
  header h1 {
    font-size: 1.1rem;
  }
  .hero-conversions {
    flex-direction: column;
    gap: 0.35rem;
  }
  .hero-conversions span::before {
    content: "";
  }
  .obs-logo-img {
    height: 2rem;
  }
  .badge-lab {
    max-width: 100%;
    white-space: normal;
  }
}

/* Flat design : aplats, bordures nettes, sans relief */
.view-essential .hero,
.view-essential .card,
.view-essential .signal-card,
.view-essential .explorer-cursor-panel,
.view-essential .comparator-panel,
.view-essential .comparator-side,
.view-essential .intro-snapshot,
.view-essential .block-callout,
.view-essential .energy-balance-diagram,
.view-essential .accel-col,
.view-essential .h15-annual-box,
.view-essential .modal-content,
.view-essential .chart-wrap,
.view-essential .si-metric {
  box-shadow: none !important;
  background-image: none !important;
}

.view-essential .hero {
  background: var(--bg-hero);
  border: 1px solid #e0e0e0;
}

.view-essential .card,
.view-essential .signal-card,
.view-essential .explorer-cursor-panel,
.view-essential .comparator-panel,
.view-essential .intro-snapshot,
.view-essential .block-callout,
.view-essential .h15-annual-box {
  background: var(--surface);
  border: 1px solid #e0e0e0;
}

.view-essential .signal-primary .signal-card,
.view-essential .signal-card.signal-explorer-card,
.view-essential .signal-card.signal-primary-card {
  border: 1px solid #e0e0e0;
  background: var(--surface);
}

.signal-detail-link {
  display: inline-block;
  margin-top: 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.signal-detail-link:hover {
  text-decoration: underline;
}

.signal-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.signal-title-row h3 {
  flex: 1;
  min-width: 0;
}

.e1-chart-expand {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-top: 0.1rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
}

.e1-chart-expand:hover,
.e1-chart-preview:hover {
  background: var(--accent-soft);
}

.e1-chart-preview {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.35rem 0.25rem 0.15rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background: var(--obs-slate-50);
  cursor: pointer;
}

.e1-variation-chart--spark .e1-chart-tick,
.e1-variation-chart--spark .e1-chart-tick-sm,
.e1-variation-chart--spark .e1-chart-axis,
.e1-variation-chart--spark .e1-chart-value,
.e1-variation-chart--spark .e1-chart-delta {
  display: none;
}

.e1-chart-preview:focus-visible,
.e1-chart-expand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.e1-variation-chart {
  display: block;
  width: 100%;
  height: auto;
}

.e1-chart-tick {
  font-size: 14px;
  fill: var(--muted);
  font-family: var(--font);
}

.e1-chart-tick-sm {
  font-size: 10px;
  fill: var(--muted);
  font-family: var(--font);
}

.e1-chart-axis {
  font-size: 13px;
  fill: var(--text);
  font-weight: 600;
  font-family: var(--font);
}

.e1-chart-value,
.e1-chart-delta {
  font-size: 14px;
  fill: var(--accent-strong);
  font-weight: 600;
  font-family: var(--font);
}

.modal--chart .modal-content--chart {
  position: relative;
  width: min(56rem, 96vw);
  max-width: none;
  max-height: 92vh;
  overflow-y: auto;
  box-shadow: none;
  border: 1px solid #e0e0e0;
}

.modal-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.modal-close:hover {
  background: var(--accent-soft);
}

.e1-chart-svg-host {
  margin: 0.75rem 0 0.5rem;
}

.e1-chart-metrics {
  display: none;
}

body.modal-open {
  overflow: hidden;
}