/* =====================================================================
   Julien Marsouin — portfolio copywriter & transcréateur · direction « Enseigne »
   Dark impactant · Archivo display · signature transcréation EN/FR
   ===================================================================== */

/* ---------- TOKENS ---------- */
:root {
  /* Fonds (dark warm) */
  --bg:        #0E0C0A;
  --bg-raised: #17130E;
  --bg-sunk:   #090807;
  --bg-field:  #1C1811;

  /* Ancre / texte */
  --ink:      #F2ECE1;
  --ink-soft: #B7AF9F;
  --gray-500: #8B8271;
  --gray-600: #6C6454;
  --dim:      #2A251E;  /* nom « éteint » avant illumination */

  /* Filets */
  --line:        rgba(242, 236, 225, .13);
  --line-strong: rgba(242, 236, 225, .26);

  /* Accent — ember (s'allume) */
  --ember:      #FF5A36;
  --ember-soft: #FF7C57;
  --ember-deep: #E5461F;
  --amber:      #F4B740;
  --ember-wash: rgba(255, 90, 54, .14);
  --ember-line: rgba(255, 90, 54, .40);
  --glow:       0 0 42px rgba(255, 90, 54, .30);
  --glow-soft:  0 0 22px rgba(255, 122, 84, .22);
  --focus:      #FF7C57;

  /* Familles */
  --font-display: "Archivo", system-ui, "Arial Narrow", sans-serif;
  --font-black:   "Archivo Black", "Archivo", system-ui, sans-serif;
  --font-body:    "Hanken Grotesk", system-ui, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono:    "Space Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Échelle typo fluide */
  --fs-wordmark: clamp(2.75rem, 0.6rem + 9.2vw, 8.5rem);
  --fs-hero:    clamp(2.5rem, 1.10rem + 6.2vw, 6.5rem);
  --fs-display: clamp(2.25rem, 1.40rem + 3.6vw, 4.25rem);
  --fs-h2:      clamp(1.9rem, 1.35rem + 2.3vw, 3.15rem);
  --fs-h3:      clamp(1.375rem, 1.15rem + 0.95vw, 1.9rem);
  --fs-quote:   clamp(1.6rem, 1.0rem + 2.7vw, 2.85rem);
  --fs-lead:    clamp(1.2rem, 1.08rem + 0.55vw, 1.55rem);
  --fs-body:    clamp(1.0625rem, 1.02rem + 0.19vw, 1.1875rem);
  --fs-body-sm: 0.9375rem;
  --fs-meta:    0.8125rem;
  --fs-label:   0.75rem;
  --fs-index:   clamp(1.5rem, 1.1rem + 1.6vw, 2.5rem);

  /* Espacement */
  --space-1: .25rem;  --space-2: .5rem;  --space-3: .75rem; --space-4: 1rem;
  --space-5: 1.5rem;  --space-6: 2rem;   --space-7: 3rem;   --space-8: 4rem;
  --space-9: 6rem;    --space-10: 8rem;  --space-11: 10rem;
  --section-y: clamp(4rem, 2rem + 9vw, 10rem);
  --gutter:    clamp(1.25rem, 0.5rem + 5vw, 7.5rem);

  /* Conteneurs */
  --container:      78rem;
  --container-wide: 84rem;
  --measure:        42rem;

  /* Motion */
  --dur-fast: 180ms;  --dur: 320ms;  --dur-slow: 520ms;  --dur-reveal: 720ms;
  --ease-out:    cubic-bezier(.20, .80, .20, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --ease-mark:   cubic-bezier(.85, 0, .15, 1);
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--bg); }
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.62;
  color: var(--ink);
  background: transparent; /* le fond vivant (.bg) est peint derrière, cf. v3 */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga";
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: var(--ember); color: var(--bg); }

/* ---------- LAYOUT ---------- */
.wrap { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.wrap--wide { width: min(100% - 2 * var(--gutter), var(--container-wide)); }
.section { padding-block: var(--section-y); position: relative; }
.section--sunk { background: var(--bg-sunk); }
.section + .section { border-top: 1px solid var(--line); }
.measure { max-width: var(--measure); }
.rule { height: 1px; background: var(--line); border: 0; transform-origin: left; }

/* ---------- TYPO ROLES ---------- */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ember);
  display: inline-flex; align-items: center; gap: .6em;
}
.kicker::before { content: ""; width: 1.6em; height: 1px; background: var(--ember); opacity: .7; }
.meta {
  font-family: var(--font-mono);
  font-size: var(--fs-meta);
  letter-spacing: .02em;
  color: var(--gray-500);
  line-height: 1.5;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 800; letter-spacing: -.02em; }
.h-display { font-size: var(--fs-display); line-height: 1.02; }
.h2 { font-size: var(--fs-h2); line-height: 1.04; }
.h3 { font-size: var(--fs-h3); line-height: 1.1; font-weight: 700; }
.lead { font-size: var(--fs-lead); line-height: 1.45; color: var(--ink-soft); max-width: 46ch; }
.body { max-width: 64ch; color: var(--ink-soft); }
.body strong { color: var(--ink); font-weight: 600; }
.body p + p { margin-top: var(--space-5); }
.tnum { font-variant-numeric: tabular-nums; }
.em { color: var(--ember); }

/* ---------- LIENS ---------- */
.link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--ember-line);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur) var(--ease-out),
              text-underline-offset var(--dur) var(--ease-out), color var(--dur);
}
.link:hover { text-decoration-color: var(--ember); text-underline-offset: 4px; color: var(--ember-soft); }
.arrow { font-family: var(--font-mono); color: var(--ember); }

/* ---------- BOUTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-body); font-size: var(--fs-body-sm);
  font-weight: 700; letter-spacing: .02em;
  padding: 15px 26px;
  background: var(--ember); color: #1A0B06;
  transition: box-shadow var(--dur) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              background var(--dur-fast);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--glow); background: var(--ember-soft); }
.btn:active { transform: translateY(0); }
.btn--ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn--ghost:hover { color: var(--ember-soft); border-color: var(--ember); box-shadow: none; background: transparent; }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); min-height: 66px; padding-block: var(--space-3);
}
.nav__brand {
  display: inline-flex; align-items: baseline; gap: var(--space-3);
  font-family: var(--font-black); font-size: 1.5rem; letter-spacing: -.01em;
  color: var(--ink);
}
.nav__brand .dot { color: var(--ember); }
.nav__brand .role {
  font-family: var(--font-mono); font-weight: 400; font-size: 12px;
  letter-spacing: .04em; color: var(--gray-500);
}
.nav__links {
  display: flex; align-items: center; gap: var(--space-5);
  font-weight: 600; font-size: var(--fs-body-sm);
}
.nav__links a { position: relative; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -5px;
  height: 2px; background: var(--ember);
  transition: right var(--dur) var(--ease-out);
}
.nav__links a:hover::after { right: 0; }
.nav__right { display: flex; align-items: center; gap: var(--space-5); }

/* Toggle EN | FR */
.langnote {
  font-family: var(--font-mono); font-size: 11px; color: var(--gray-500);
  opacity: 0; transition: opacity var(--dur) var(--ease-out);
  max-width: 22ch; line-height: 1.35; text-align: right;
}
.langnote.is-visible { opacity: 1; }
.toggle {
  display: inline-flex; border: 1px solid var(--line-strong);
  font-family: var(--font-mono); font-weight: 700; font-size: 13px;
}
.toggle__btn { padding: 6px 12px; color: var(--gray-500); position: relative; transition: color var(--dur) var(--ease-out); }
.toggle__btn + .toggle__btn { border-left: 1px solid var(--line-strong); }
.toggle__btn::after {
  content: ""; position: absolute; left: 8px; right: 8px; bottom: 3px;
  height: 2px; background: var(--ember);
  transform: scaleX(0); transform-origin: center;
  transition: transform var(--dur) var(--ease-in-out);
}
.toggle__btn[aria-pressed="true"] { color: var(--ember); text-shadow: var(--glow-soft); }
.toggle__btn[aria-pressed="true"]::after { transform: scaleX(1); }

/* ---------- HERO / ENSEIGNE ---------- */
.hero { padding-top: clamp(2rem, 0.5rem + 6vw, 5rem); padding-bottom: 0; overflow: hidden; }
.hero__kicker { margin-bottom: var(--space-6); }

/* Le nom « JE » qui s'allume */
.wordmark {
  font-family: var(--font-black);
  font-size: var(--fs-wordmark);
  line-height: .82;
  letter-spacing: -.03em;
  color: var(--dim);
  margin-left: -.04em;
  position: relative;
  transition: color 1.2s var(--ease-out);
}
.wordmark .word { display: block; }
.wordmark .glyph { display: inline-block; color: var(--dim); }
.wordmark.lit .glyph { color: var(--ink); }
.wordmark.lit { text-shadow: var(--glow); }
/* flicker d'allumage : piloté par JS via classe .igniting sur chaque glyph */
.wordmark .glyph.igniting { animation: ignite 620ms var(--ease-mark) both; }
@keyframes ignite {
  0%   { color: var(--dim);       text-shadow: none; }
  22%  { color: var(--ink);       text-shadow: var(--glow); }
  30%  { color: var(--dim);       text-shadow: none; }
  42%  { color: var(--ember-soft);text-shadow: var(--glow); }
  55%  { color: var(--dim);       text-shadow: none; }
  100% { color: var(--ink);       text-shadow: var(--glow); }
}

.hero__lockup {
  display: flex; flex-wrap: wrap; align-items: flex-end;
  justify-content: space-between; gap: var(--space-6);
  margin-top: var(--space-4);
}
.hero__statement { max-width: 30ch; }
.hero__title {
  font-family: var(--font-display); font-weight: 800;
  font-size: var(--fs-display); line-height: 1.02; letter-spacing: -.02em;
  text-transform: uppercase; max-width: 18ch;
}
.hero__sub { margin-top: var(--space-5); max-width: 40ch; }
.hero__cta { margin-top: var(--space-6); display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap; }

/* Marquee des disciplines (hommage) */
.marquee {
  margin-top: var(--space-8);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  overflow: hidden; white-space: nowrap; padding-block: var(--space-4);
}
.marquee__track {
  display: inline-block; white-space: nowrap;
  animation: scroll-x 32s linear infinite; will-change: transform;
}
.marquee__track span {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  font-size: 1.25rem; letter-spacing: .02em; padding: 0 1.2rem; color: var(--ink-soft);
}
.marquee__track .sep { color: var(--ember); }
@keyframes scroll-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee:hover .marquee__track { animation-play-state: paused; }

/* Surlignage / mot marqué */
.mark { color: var(--ember); }

/* ---------- TRANSCRÉATION ---------- */
.tc { position: relative; display: inline-block; }
.tc__ink { display: inline; }
.tc.is-morphing { will-change: opacity, transform, filter; }
.tc__strike {
  position: absolute; left: -.05em; right: -.05em; top: 52%;
  height: .06em; min-height: 2px; background: var(--ember);
  transform: scaleX(0); transform-origin: left;
  pointer-events: none; box-shadow: var(--glow-soft);
}

/* ---------- MANIFESTE ---------- */
.manifesto p {
  font-family: var(--font-display); font-weight: 500;
  font-size: var(--fs-h3); line-height: 1.4; color: var(--ink); max-width: 32ch;
  letter-spacing: -.01em;
}
.manifesto .drop { color: var(--ember); }

/* ---------- SELECTED WORK (index) ---------- */
.work__head { display: flex; align-items: baseline; gap: var(--space-5); flex-wrap: wrap; margin-bottom: var(--space-7); }
.index { border-top: 1px solid var(--line-strong); }
.index__row {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr) auto auto auto auto;
  align-items: center; gap: var(--space-5);
  padding-block: var(--space-5); border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease-out);
}
a.index__row { position: relative; }
a.index__row:hover { background: var(--bg-raised); }
.index__n { font-family: var(--font-black); font-size: var(--fs-index); color: var(--gray-600); transition: color var(--dur), text-shadow var(--dur); }
a.index__row:hover .index__n { color: var(--ember); text-shadow: var(--glow-soft); }
.index__title {
  font-family: var(--font-display); font-weight: 800; text-transform: uppercase;
  font-size: var(--fs-h3); line-height: 1.02; letter-spacing: -.02em;
  transition: transform var(--dur) var(--ease-out);
}
a.index__row:hover .index__title { transform: translateX(10px); }
.index__client, .index__lang, .index__year {
  font-family: var(--font-mono); font-size: var(--fs-meta); color: var(--gray-500); white-space: nowrap;
}
.index__lang { color: var(--ember); }
.index__year { font-variant-numeric: tabular-nums; }
.index__go { font-family: var(--font-mono); color: var(--ember); opacity: 0; transition: opacity var(--dur); }
a.index__row:hover .index__go { opacity: 1; }

/* ---------- CAPACITÉS ---------- */
.caps { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1px; margin-top: var(--space-7); background: var(--line); border: 1px solid var(--line); }
.cap {
  border: 0; padding: var(--space-6); background: var(--bg);
  transition: background var(--dur) var(--ease-out), box-shadow var(--dur);
}
.cap:hover { background: var(--bg-raised); box-shadow: inset 0 3px 0 var(--ember); }
.cap__n { font-family: var(--font-mono); font-weight: 700; font-size: var(--fs-meta); color: var(--ember); }
.cap__title { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; font-size: var(--fs-h3); margin-top: var(--space-4); }
.cap__desc { font-size: var(--fs-body-sm); color: var(--ink-soft); margin-top: var(--space-3); }

/* ---------- ROSTER ---------- */
.roster { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-4) var(--space-5); margin-top: var(--space-7); max-width: 62rem; }
.roster span { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; font-size: var(--fs-h3); letter-spacing: -.02em; color: var(--ink); transition: color var(--dur); }
.roster span:hover { color: var(--ember); }
.roster .sep { color: var(--ember); font-weight: 400; }
.roster .sep:hover { color: var(--ember); }
.roster__note { margin-top: var(--space-6); }

/* ---------- NICE WORDS ---------- */
.quotes { display: grid; grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); gap: var(--space-6); margin-top: var(--space-7); }
.quote { border-top: 2px solid var(--line-strong); padding-top: var(--space-4); }
.quote__mark { font-family: var(--font-black); font-size: 3rem; color: var(--ember); line-height: .6; }
.quote__text { font-family: var(--font-display); font-weight: 500; font-size: var(--fs-h3); line-height: 1.32; color: var(--ink); margin-top: var(--space-3); }
.quote__by { margin-top: var(--space-4); }

/* ---------- CONTACT ---------- */
.contact__title { max-width: 18ch; text-transform: uppercase; }
.contact__body { margin-top: var(--space-5); }
.contact__email {
  font-family: var(--font-black); font-size: var(--fs-display);
  display: inline-block; margin-top: var(--space-6); color: var(--ink);
  letter-spacing: -.02em; word-break: break-word;
  transition: color var(--dur), text-shadow var(--dur);
}
.contact__email:hover { color: var(--ember); text-shadow: var(--glow-soft); }
.contact__actions { margin-top: var(--space-7); display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap; }

/* ---------- FOOTER ---------- */
.footer { background: var(--bg-sunk); padding-block: var(--space-9) var(--space-6); border-top: 1px solid var(--line-strong); }
.footer__name { font-family: var(--font-black); font-size: var(--fs-wordmark); line-height: .8; color: var(--dim); letter-spacing: -.03em; }
.footer__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); gap: var(--space-6); margin-top: var(--space-7); }
.footer__label { font-family: var(--font-mono); font-size: var(--fs-label); letter-spacing: .18em; text-transform: uppercase; color: var(--ember); margin-bottom: var(--space-3); }
.footer__bar { margin-top: var(--space-8); padding-top: var(--space-4); border-top: 1px solid var(--line); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-3); }

/* ---------- CASE STUDY ---------- */
.cs-hero { padding-top: clamp(2rem, 1rem + 5vw, 4.5rem); padding-bottom: var(--space-7); }
.back { font-family: var(--font-mono); font-size: var(--fs-meta); color: var(--gray-500); }
.back:hover { color: var(--ember); }
.cs-hero__title { font-family: var(--font-black); font-size: var(--fs-hero); line-height: .98; letter-spacing: -.025em; text-transform: uppercase; margin-top: var(--space-5); max-width: 20ch; }
.cs-hero__sub { margin-top: var(--space-5); }
.cs-block { padding-block: var(--space-7); border-top: 1px solid var(--line); }
.cs-block__label { margin-bottom: var(--space-5); }
.pullquote { font-family: var(--font-display); font-weight: 700; font-size: var(--fs-quote); line-height: 1.12; max-width: var(--measure); letter-spacing: -.02em; }
.pullquote .qmark { color: var(--ember); }
.pullquote__by { margin-top: var(--space-4); }
.copyblock { border-left: 2px solid var(--ember-line); padding-left: var(--space-5); margin-top: var(--space-5); }
.copyblock p { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; letter-spacing: -.01em; font-size: var(--fs-h3); line-height: 1.2; color: var(--ink); }
.copyblock p + p { margin-top: var(--space-3); color: var(--ink-soft); font-weight: 500; text-transform: none; }
.craft { display: grid; gap: var(--space-6); grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); margin-top: var(--space-4); }
.craft strong { color: var(--ember-soft); }
.credits { margin-top: var(--space-5); padding-top: var(--space-4); border-top: 1px solid var(--line); }
.awards { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-4); }
.award { font-family: var(--font-mono); font-size: var(--fs-body-sm); font-weight: 700; color: var(--ink); }
.award::before { content: "\2605  "; color: var(--ember); }

/* Cadre placeholder visuel */
.frame { border: 1px solid var(--line-strong); background: var(--bg-raised); aspect-ratio: 16 / 9; display: grid; place-items: center; margin-top: var(--space-6); position: relative; }
.frame::before { content: ""; position: absolute; inset: 8px; border: 1px solid var(--line); pointer-events: none; }
.frame span { font-family: var(--font-mono); font-size: var(--fs-meta); color: var(--gray-500); letter-spacing: .04em; padding: 0 1rem; text-align: center; position: relative; }

/* ---------- REVEALS ---------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in { opacity: 1; transform: none; transition: opacity var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out); }

/* ---------- FOCUS / SKIP ---------- */
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 1px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ember); color: #1A0B06; padding: var(--space-3) var(--space-4); z-index: 100; font-weight: 700; }
.skip:focus { left: var(--space-3); top: var(--space-3); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 63.99rem) {
  .nav__brand .role { display: none; }
  .langnote { display: none; }
}
@media (max-width: 47.99rem) {
  .nav__links { display: none; }
  .hero__lockup { flex-direction: column; align-items: flex-start; }
  .index__row { grid-template-columns: 2.5rem 1fr auto; row-gap: var(--space-2); }
  .index__n { grid-row: 1 / span 3; }
  .index__title { grid-column: 2 / span 2; }
  a.index__row:hover .index__title { transform: none; }
  .index__client { grid-column: 2; }
  .index__lang { grid-column: 2; }
  .index__year { grid-column: 3; grid-row: 1; justify-self: end; }
  .index__go { display: none; }
}
@media (min-width: 48rem) and (max-width: 63.99rem) {
  :root { --gutter: clamp(1.5rem, 0.5rem + 4vw, 4rem); }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .reveal--wipe { clip-path: none !important; }
  .wordmark, .wordmark .glyph { color: var(--ink); }
  .wordmark { text-shadow: var(--glow); }
  .marquee__track { animation: none; }
}

/* =====================================================================
   v3 — « ENSEIGNE, LA NUIT » · texture, profondeur, grille asymétrique
   ===================================================================== */

/* ---------- 1 · FOND VIVANT ---------- */
.bg {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none; overflow: hidden;
  contain: strict;
}
.bg__glow {
  position: absolute; width: 78vmax; height: 78vmax; border-radius: 50%;
  will-change: transform;
  transform: translate3d(0, var(--par, 0), 0);
}
.bg__glow::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
              var(--ember) 0%, rgba(255, 90, 54, .35) 26%, transparent 62%);
}
.bg__glow--1 { top: -34vmax; right: -22vmax; opacity: .09; animation: drift1 55s var(--ease-in-out) infinite alternate; }
.bg__glow--2 { bottom: -40vmax; left: -26vmax; opacity: .055; animation: drift2 71s var(--ease-in-out) infinite alternate; }
.bg__glow--2::before {
  background: radial-gradient(circle at 50% 50%,
              var(--amber) 0%, rgba(244, 183, 64, .30) 24%, transparent 60%);
}
@keyframes drift1 {
  from { transform: translate3d(0, var(--par, 0), 0) scale(1); }
  to   { transform: translate3d(-6vmax, calc(var(--par, 0px) + 4vmax), 0) scale(1.12); }
}
@keyframes drift2 {
  from { transform: translate3d(0, var(--par, 0), 0) scale(1.05); }
  to   { transform: translate3d(5vmax, calc(var(--par, 0px) - 3vmax), 0) scale(1); }
}
/* Grain filmique — SVG feTurbulence en data-uri, statique, très bas */
.bg__grain {
  position: absolute; inset: -50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
  opacity: .05; mix-blend-mode: overlay;
}
/* Vignette chaude — recentre le regard */
.bg__vignette {
  position: absolute; inset: 0;
  background:
    radial-gradient(135% 115% at 50% 32%, transparent 52%, rgba(0, 0, 0, .55) 100%),
    radial-gradient(90% 70% at 50% 120%, var(--ember-wash), transparent 70%);
}

/* ---------- 1.b · AMBIANCE VIVANTE (couches injectées par script.js) ----------
   Braises flottantes (canvas) + halo qui suit le curseur + grain qui « bout ».
   Créées dans initAmbience() puis ajoutées dans .bg → présentes sur toutes les
   pages sans toucher au HTML. */
.bg__embers {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
}
.bg__spot {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(34vmax 34vmax at var(--mx, 50%) var(--my, 28%),
              rgba(255, 90, 54, .12), rgba(255, 124, 87, .05) 32%, transparent 62%);
  mix-blend-mode: screen;
  opacity: var(--spot-a, .55);
  will-change: opacity;
}
/* le grain respire : micro-décalages en escalier → texture argentique vivante */
.bg__grain { animation: grainboil 1.1s steps(1, end) infinite; }
@keyframes grainboil {
  0%   { background-position:   0px    0px; }
  12%  { background-position: -37px   21px; }
  24%  { background-position:  44px  -18px; }
  36%  { background-position: -22px  -44px; }
  48%  { background-position:  51px   33px; }
  60%  { background-position: -48px   12px; }
  72%  { background-position:  18px  -37px; }
  84%  { background-position: -14px   41px; }
  100% { background-position:   0px    0px; }
}

/* Filet ember discret en tête de section (par-dessus le hairline existant) */
.section + .section::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--ember-line) 22%, var(--ember-line) 78%, transparent);
  opacity: .5; pointer-events: none;
}

/* ---------- 2 · GRILLE ÉDITORIALE ASYMÉTRIQUE ---------- */
.grid12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--space-6);
}

/* En-tête de section : rail (n° + kicker) à gauche, titre rejeté à droite.
   .secthead est toujours sa propre grille 12 col (indépendant de la classe .grid12),
   et occupe toute la largeur quand il est imbriqué dans une grille parente. */
.secthead {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--space-6);
  align-items: start; row-gap: var(--space-5);
  margin-bottom: var(--space-8); position: relative; grid-column: 1 / -1;
}
/* Corps de prose aligné sous le titre (colonnes de droite) */
.col-right { grid-column: 5 / 13; }
@media (max-width: 63.99rem) { .col-right { grid-column: 5 / 13; } }
@media (max-width: 47.99rem) { .col-right { grid-column: auto; } }
.secthead__rail { grid-column: 1 / 4; position: relative; }
.secthead__num {
  display: block;
  font-family: var(--font-black);
  font-size: clamp(3.5rem, 2rem + 6vw, 7rem);
  line-height: .82; color: var(--dim);
  letter-spacing: -.04em;
  -webkit-text-stroke: 1px var(--line-strong); color: transparent;
  will-change: transform; transform: translate3d(0, var(--par, 0), 0);
}
.secthead__rail .kicker { margin-top: var(--space-4); }
.secthead__title { grid-column: 5 / 13; align-self: end; }
.secthead__lead { grid-column: 5 / 13; margin-top: var(--space-5); }

/* Hero : le statement se cale dans les colonnes de droite → l'espace travaille */
.hero__lockup.grid12 { margin-top: var(--space-6); }
.hero__lockup.grid12 .hero__statement { grid-column: 6 / 13; max-width: none; }
@media (max-width: 63.99rem) { .hero__lockup.grid12 .hero__statement { grid-column: 4 / 13; } }
@media (max-width: 47.99rem) { .hero__lockup.grid12 .hero__statement { grid-column: auto; } }

/* Manifeste : rail décoratif à gauche, texte rejeté à droite */
.manifesto .grid12 { align-items: start; }
.manifesto__rail { grid-column: 1 / 4; display: flex; align-items: center; gap: var(--space-4); padding-top: .3em; }
.manifesto__glyph { font-family: var(--font-black); font-size: clamp(1.6rem, 1rem + 2vw, 2.6rem); color: var(--ember); text-shadow: var(--glow-soft); line-height: 1; }
.manifesto__line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--ember-line), transparent); }
.manifesto__body { grid-column: 4 / 12; }
.manifesto__body p { max-width: 44ch; }
@media (max-width: 63.99rem) {
  .manifesto__rail { grid-column: 1 / 5; }
  .manifesto__body { grid-column: 5 / 13; }
}
@media (max-width: 47.99rem) {
  .manifesto__rail { margin-bottom: var(--space-5); }
  .manifesto__body p { max-width: none; }
}

@media (max-width: 63.99rem) {
  .secthead__rail { grid-column: 1 / 5; }
  .secthead__title, .secthead__lead { grid-column: 5 / 13; }
}
@media (max-width: 47.99rem) {
  .grid12 { display: block; }
  .secthead__num { font-size: clamp(3rem, 6rem, 4.5rem); }
  .secthead__rail .kicker { margin-top: var(--space-3); }
  .secthead__title { margin-top: var(--space-4); }
}

/* Études de cas : label en rail à gauche, contenu rejeté à droite (sans toucher au HTML) */
@media (min-width: 48rem) {
  .cs-block .wrap:has(> .cs-block__label) {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--space-6);
    align-items: start;
  }
  .cs-block .wrap:has(> .cs-block__label) > .cs-block__label { grid-column: 1 / 4; margin-bottom: 0; }
  .cs-block .wrap:has(> .cs-block__label) > :not(.cs-block__label) { grid-column: 5 / 13; }
  .cs-block .wrap:has(> .cs-block__label) > :not(.cs-block__label):first-of-type { margin-top: 0; }
}
/* Hero d'étude de cas : le grand titre se dévoile en clip-wipe */
.cs-hero__title.reveal--wipe { clip-path: inset(112% 0 -12% 0); }

/* ---------- 3 · PROFONDEUR / LÉVITATION ---------- */
.lift { transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); }
a.index__row {
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: background var(--dur) var(--ease-out),
              transform var(--dur) var(--ease-out),
              box-shadow var(--dur) var(--ease-out);
}
a.index__row:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -22px rgba(0, 0, 0, .9), 0 2px 0 var(--ember) inset;
}

/* Cartes qui flottent (capacités, citations) */
.cap, .quote { transition: transform var(--dur) var(--ease-out), background var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); }
.cap:hover { transform: translateY(-4px); box-shadow: 0 22px 46px -26px rgba(0, 0, 0, .95); }

/* ---------- 4 · ANIMATIONS DE TEXTE ENRICHIES ---------- */

/* Reveal « éclairé par le bas » : le titre se dévoile en montant sous un masque */
.reveal--wipe { clip-path: inset(112% 0 -12% 0); opacity: 1; transform: translateY(4px); }
.reveal--wipe.is-in {
  clip-path: inset(-12% 0 -12% 0); transform: none;
  transition: clip-path var(--dur-reveal) var(--ease-out), transform var(--dur-reveal) var(--ease-out);
}

/* Le trait ember des kickers se trace à l'apparition */
.reveal .kicker::before, .reveal--wipe .kicker::before,
.secthead .kicker::before {
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-slow) var(--ease-out) 120ms;
}
.is-in .kicker::before, .secthead.is-in .kicker::before { transform: scaleX(1); }

/* Wordmark : lueur reflétée sur le fond quand il s'allume + respiration douce */
.wordmark::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 118%; height: 220%; transform: translate(-50%, -50%);
  background: radial-gradient(60% 52% at 50% 50%, var(--ember-wash), transparent 70%);
  opacity: 0; transition: opacity 1.4s var(--ease-out);
  pointer-events: none; z-index: -1;
}
.wordmark.lit::after { opacity: 1; animation: signBreath 6.5s var(--ease-in-out) 1.6s infinite; }
@keyframes signBreath {
  0%, 100% { opacity: .8; }
  50%      { opacity: 1; }
}
.wordmark.lit .glyph { animation: glyphBreath 7s var(--ease-in-out) infinite; }
@keyframes glyphBreath {
  0%, 100% { text-shadow: 0 0 22px rgba(255, 90, 54, .18); }
  50%      { text-shadow: 0 0 40px rgba(255, 90, 54, .34); }
}

/* ---------- reduced-motion : on fige le fond vivant + la parallaxe ---------- */
@media (prefers-reduced-motion: reduce) {
  .bg__glow { animation: none !important; transform: none !important; }
  .bg__grain { animation: none !important; }
  .bg__embers, .bg__spot { display: none !important; }
  .secthead__num { transform: none !important; }
  .wordmark.lit::after { animation: none; opacity: 1; }
  .wordmark.lit .glyph { animation: none; }
  .reveal--wipe { clip-path: none !important; transform: none !important; }
}