/* ============================================================
   ITIWE — Article éditorial « Structurer la pensée humaine »
   Style spécifique. Tokens hérités de tokens.css.
   Direction : A2 Manifeste Méthodologique.
   ============================================================ */

:root {
  --r-lg: 8px;
  --r-xl: 12px;
  --shadow-card: 0 1px 2px rgba(27,27,27,0.04), 0 4px 12px rgba(27,27,27,0.04);
  --measure: 68ch;          /* largeur de lecture, pilotable par Tweaks */
  --body-size: 19px;        /* taille du corps, pilotable */
  --lead-gap: 1.7;          /* densité verticale, pilotable */
  --accent: var(--vermillon);
}

html { scroll-behavior: smooth; }


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

::selection { background: rgba(181,72,44,0.18); }

.article { max-width: var(--measure); }

/* ----------------------------------------------------------
   Body prose
   ---------------------------------------------------------- */
.prose { padding-bottom: 24px; }

.prose p {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--body-size);
  line-height: var(--lead-gap);
  color: var(--ink-80);
  margin: 0 0 calc(var(--body-size) * 1.25);
  text-wrap: pretty;
}
.prose p strong { color: var(--ink); font-weight: 600; }
.prose p em { font-style: italic; }
.prose a { color: var(--ink-blue); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--accent); text-decoration-thickness: 1.5px; }
.prose a:hover { text-decoration-thickness: 2px; }

/* lead paragraph after a section head */
.prose .lead {
  font-size: calc(var(--body-size) + 2px);
  color: var(--ink);
  line-height: 1.55;
}

/* Section heads with figure jalon */
.sec { scroll-margin-top: 108px; padding-top: 56px; }
.sec__head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0 0 28px;
}
.sec__figure {
  width: 46px; height: 42px;
  flex-shrink: 0;
}
.sec__figure svg { width: 100%; height: 100%; display: block; }
.sec__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.sec__h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.sec__h2 em { font-style: italic; }
.sec__h2 .roman { font-style: normal; }

.sub {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 44px 0 16px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.sub__n {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  font-weight: 500;
}

/* Inline de-emphasised stat figure */
.statfig {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: lining-nums;
}

/* ----------------------------------------------------------
   Friction triptych
   ---------------------------------------------------------- */
.frictions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 36px 0;
}
.friction {
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.friction:hover { transform: translateY(-2px); border-color: var(--ink-20); box-shadow: var(--shadow-card); }
.friction__n {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}
.friction__t { font-family: var(--font-body); font-weight: 600; font-size: 16px; color: var(--ink); margin: 0; }
.friction__d { font-family: var(--font-body); font-size: 14px; line-height: 1.5; color: var(--ink-60); margin: 0; }

/* ----------------------------------------------------------
   Pull / manifesto callout
   ---------------------------------------------------------- */
.callout {
  background: var(--paper-warm);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-lg) var(--r-lg) 0;
  padding: 28px 32px;
  margin: 36px 0;
}
.callout p {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 27px);
  line-height: 1.4;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 0;
}
.callout p strong { font-style: normal; font-weight: 600; color: var(--ink); }

/* ----------------------------------------------------------
   Brief before/after toggle
   ---------------------------------------------------------- */
.brief {
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  margin: 32px 0;
  overflow: hidden;
}
.brief__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--ink-10);
  background: var(--paper-deep);
}
.brief__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-60);
  margin-right: auto;
}
.seg {
  display: inline-flex;
  background: var(--paper);
  border: 1px solid var(--ink-10);
  border-radius: var(--r-sm);
  padding: 3px;
  gap: 2px;
}
.seg__btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-60);
  background: transparent;
  border: none;
  padding: 7px 16px;
  border-radius: 3px;
  cursor: pointer;
  transition: color var(--t-base), background var(--t-base);
}
.seg__btn[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.seg__btn--good[aria-pressed="true"] { background: var(--accent); }
.brief__body { padding: 28px 32px; }
.brief__prompt {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
  min-height: 3.2em;
  transition: opacity var(--t-base);
}
.brief__prompt .hl { background: rgba(181,72,44,0.12); padding: 0 3px; border-radius: 2px; font-style: normal; }
.brief__note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--ink-10);
}
.brief__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: var(--r-sm);
  flex-shrink: 0;
}
.brief__tag--flou { background: var(--ink-10); color: var(--ink-60); }
.brief__tag--struct { background: rgba(181,72,44,0.12); color: var(--vermillon-deep); }
.brief__note p { font-family: var(--font-body); font-size: 14px; line-height: 1.55; color: var(--ink-60); margin: 0; }

/* ----------------------------------------------------------
   Modular blocks (Contexte/Objectif/Contraintes/Format)
   ---------------------------------------------------------- */
.modules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 32px 0;
}
.module {
  position: relative;
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  padding: 22px 22px 22px 26px;
  overflow: hidden;
}
.module::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--accent);
  opacity: 0.85;
}
.module__k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-40);
  margin: 0 0 6px;
}
.module__t { font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 22px; color: var(--ink); margin: 0 0 6px; letter-spacing: -0.012em; }
.module__d { font-family: var(--font-body); font-size: 14px; line-height: 1.5; color: var(--ink-60); margin: 0; }

/* ----------------------------------------------------------
   Compare table — Outil vs Collaborateur
   ---------------------------------------------------------- */
.compare2 {
  margin: 32px 0;
  border: 1px solid var(--ink-10);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--paper);
}
.compare2__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--ink-10);
}
.compare2__row:last-child { border-bottom: none; }
.compare2__cell { padding: 16px 22px; font-size: 15px; line-height: 1.5; }
.compare2__cell--a { color: var(--ink-60); border-right: 1px solid var(--ink-10); background: var(--paper-warm); }
.compare2__cell--b { color: var(--ink); font-weight: 500; }
.compare2__head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--ink-10);
}
.compare2__h {
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.compare2__h--a { color: var(--ink-60); border-right: 1px solid var(--ink-10); }
.compare2__h--b { color: var(--accent); }

/* ----------------------------------------------------------
   Ratio d'Or IA — animated stacked bar
   ---------------------------------------------------------- */
.ratio {
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  padding: 32px;
  margin: 36px 0;
}
.ratio__bar {
  display: flex;
  height: 88px;
  border-radius: var(--r-sm);
  overflow: hidden;
  gap: 3px;
  background: var(--paper);
}
.ratio__seg {
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 12px;
  cursor: pointer;
  flex-shrink: 1;
  flex-basis: 0%;
  min-width: 0;
  transition: filter var(--t-base);
  overflow: hidden;
}
.ratio__seg[data-k="h"] { background: var(--ink); flex-grow: 60; }
.ratio__seg[data-k="x"] { background: var(--ink-60); flex-grow: 30; }
.ratio__seg[data-k="a"] { background: var(--accent); flex-grow: 10; }
.ratio__seg:hover { filter: brightness(1.08); }
.ratio__seg.is-active { outline: 2px solid var(--ink); outline-offset: -2px; }
.ratio__seg.is-dim { filter: brightness(0.78) saturate(0.7); }
.ratio__pct {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 26px;
  color: var(--paper);
  line-height: 1;
  white-space: nowrap;
}
.ratio__legend {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.ratio__item {
  text-align: left;
  background: transparent;
  border: none;
  border-top: 2px solid var(--ink-10);
  padding: 14px 0 0;
  cursor: pointer;
  transition: border-color var(--t-base);
}
.ratio__item.is-active { border-top-color: var(--accent); }
.ratio__swatch { width: 12px; height: 12px; border-radius: 2px; display: inline-block; margin-right: 8px; vertical-align: middle; }
.ratio__name { font-family: var(--font-body); font-weight: 600; font-size: 14px; color: var(--ink); }
.ratio__big { font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 18px; color: var(--ink-60); margin-left: 6px; }
.ratio__desc { font-family: var(--font-body); font-size: 13.5px; line-height: 1.5; color: var(--ink-60); margin: 8px 0 0; }
.ratio__foot {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--ink-10);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
}

/* ----------------------------------------------------------
   Iterative loop
   ---------------------------------------------------------- */
.loop {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 32px 0;
  counter-reset: loop;
}
.loop__step {
  position: relative;
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  padding: 22px 18px;
  transition: border-color var(--t-base), background var(--t-base), transform var(--t-base);
}
.loop__step.is-on { border-color: var(--accent); background: var(--paper); transform: translateY(-3px); box-shadow: var(--shadow-card); }
.loop__n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-40);
  letter-spacing: 0.08em;
}
.loop__step.is-on .loop__n { color: var(--accent); }
.loop__t { font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 21px; color: var(--ink); margin: 8px 0 6px; }
.loop__d { font-family: var(--font-body); font-size: 13px; line-height: 1.5; color: var(--ink-60); margin: 0; }
.loop__arrow {
  position: absolute;
  right: -8px; top: 50%;
  transform: translateY(-50%);
  color: var(--ink-20);
  z-index: 2;
}
.loop__step:last-child .loop__arrow { display: none; }

/* bridges list (build ponts) */
.bridges { list-style: none; margin: 28px 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.bridges li {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-10);
}
.bridges li:last-child { border-bottom: none; }
.bridges__a, .bridges__b {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(18px, 2.2vw, 23px);
  color: var(--ink);
}
.bridges__a { text-align: right; color: var(--ink-60); }
.bridges__x { color: var(--accent); flex-shrink: 0; }

/* ----------------------------------------------------------
   Stat duo (market figures)
   ---------------------------------------------------------- */
.statduo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}
.stat {
  background: var(--paper-warm);
  border: 0.5px solid var(--ink-10);
  border-radius: var(--r-lg);
  padding: 28px;
}
.stat__num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: clamp(44px, 6vw, 60px);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.stat__num em { color: var(--accent); font-style: italic; }
.stat__d { font-family: var(--font-body); font-size: 14.5px; line-height: 1.5; color: var(--ink-60); margin: 14px 0 0; }
.statduo__src { grid-column: 1 / -1; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.06em; color: var(--ink-40); margin: -4px 0 0; }

/* ----------------------------------------------------------
   Closing CTA
   ---------------------------------------------------------- */
.closer {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--r-xl);
  padding: clamp(40px, 6vw, 64px);
  margin: 64px 0 0;
  position: relative;
  overflow: hidden;
}
.closer__mark {
  position: absolute;
  right: -30px; bottom: -40px;
  width: 240px; opacity: 0.06;
  pointer-events: none;
}
.closer__mark svg path { fill: var(--paper) !important; }
.closer__k {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--vermillon-hover);
  margin: 0 0 20px;
}
.closer__q {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.018em;
  margin: 0 0 32px;
  max-width: 22ch;
  position: relative;
}
.closer__q em { font-style: italic; }
.closer__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--paper);
  font-weight: 600;
  font-size: 16px;
  padding: 16px 26px;
  border-radius: var(--r-sm);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background var(--t-base);
}
.closer__cta:hover { background: var(--vermillon-hover); }
.closer__cta svg { transition: transform var(--t-fast); }
.closer__cta:hover svg { transform: translateX(2px); }
.closer__sub { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em; color: rgba(244,239,230,0.5); margin: 18px 0 0; }

/* ----------------------------------------------------------
   Reveal on scroll
   ---------------------------------------------------------- */
/* Visible by default — content never depends on JS/IO to be seen.
   Hidden start-state only when JS arms it; entrance is pure enhancement. */
.reveal { opacity: 1; transform: none; }
html.reveal-armed .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms cubic-bezier(0.2,0,0,1), transform 600ms cubic-bezier(0.2,0,0,1);
}
html.reveal-armed .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
}
@media print {
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ----------------------------------------------------------
   Density variants (Tweaks)
   ---------------------------------------------------------- */
[data-density="compact"] { --lead-gap: 1.5; }
[data-density="aere"]    { --lead-gap: 1.85; }
[data-density="compact"] .sec { padding-top: 40px; }
[data-density="aere"] .sec    { padding-top: 72px; }

/* ----------------------------------------------------------
   Responsive
   ---------------------------------------------------------- */
@media (max-width: 1079px) {
  .article { max-width: 72ch; margin: 0 auto; }
}
@media (max-width: 720px) {
  .frictions { grid-template-columns: 1fr; }
  .modules { grid-template-columns: 1fr; }
  .loop { grid-template-columns: 1fr 1fr; }
  .loop__arrow { display: none; }
  .compare2__row, .compare2__head { grid-template-columns: 1fr; }
  .compare2__cell--a, .compare2__h--a { border-right: none; }
  .statduo { grid-template-columns: 1fr; }
  .bridges li { grid-template-columns: 1fr; gap: 4px; text-align: center; }
  .bridges__a { text-align: center; }
  .ratio__legend { grid-template-columns: 1fr; }
}

.reader { padding-bottom: var(--s24); }
.closer a, .closer a:hover { color: var(--paper); }

.prose .closer__q{color:var(--paper)}
.prose .closer__k{color:var(--vermillon-hover)}
.prose .closer__sub{color:rgba(244,239,230,0.55)}