/* ===================================================
   V4 — MOLECULAR JOURNEY
   Parallax vertical le long d'une chaine moleculaire
   Fond CSS/SVG genere, multi-couches, sections semi-transparentes
   Palette: #070710 deep, #97175A bordeaux, #c4a35a or, #1a8a7a teal
   Typo: Inter
   =================================================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --v4-void: #1a0a14;
  --v4-dark: #200e18;
  --v4-card: #2a1220;
  --v4-plum: #97175A;
  --v4-gold: #c4a35a;
  --v4-teal: #1a8a7a;
  --v4-white: #ffffff;
  --v4-text: rgba(255,255,255,.78);
  --v4-text-dim: rgba(255,255,255,.38);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  color: var(--v4-text);
  background: var(--v4-void);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

.v4-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 3;
}

/* ==========================================================
   BACKGROUND LAYERS — THE MOLECULAR CHAIN
   ========================================================== */

/* Root universe container */
.v4-universe {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

/* ---- Layer 0: Fixed bordeaux background with spotlight ---- */
.v4-layer-bordeaux {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at var(--spot-x, 100%) var(--spot-y, 100%),
    #3a1028 0%,
    #200e18 60%
  );
}

/* ---- Scattered halos (scrolls with page) ---- */
.v4-halos-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.v4-halo {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

/* ---- Layer 1: Video layer (scrollable) ---- */
.v4-layer-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.v4-layer-bg img,
.v4-layer-bg video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}
.v4-layer-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #97175A;
  mix-blend-mode: color;
  z-index: 1;
  pointer-events: none;
}
.v4-layer-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(32, 14, 24, 1) 0%, rgba(32, 14, 24, 0) 30%),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(32, 14, 24, 0.25) 0%,
      rgba(32, 14, 24, 0.40) 30%,
      rgba(32, 14, 24, 0.70) 55%,
      rgba(32, 14, 24, 0.92) 75%,
      rgba(32, 14, 24, 1) 90%
    );
  z-index: 2;
  pointer-events: none;
}

/* ---- Layer 1b: Floating bubbles (differential speeds) ---- */
.v4-layer-bubbles {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.v4-bubble {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  width: var(--size, 60px);
  height: var(--size, 60px);
  left: var(--x, 50%);
  top: var(--y, 50%);
  overflow: hidden;
  box-shadow:
    inset 0 -3px 8px rgba(255,255,255,.06),
    inset 0 3px 6px rgba(255,255,255,.10),
    0 0 20px rgba(255,255,255,.04);
}
/* SVG distortion layer */
.v4-bubble::before {
  content: '';
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background: inherit;
  background-attachment: fixed;
  filter: url(#bubble-lens);
  z-index: -1;
}
/* Specular highlight on bubble */
.v4-bubble::after {
  content: '';
  position: absolute;
  top: 8%;
  left: 18%;
  width: 35%;
  height: 20%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 80%, rgba(255,255,255,.14), transparent);
  transform: rotate(-15deg);
  pointer-events: none;
}

/* ==========================================================
   CONTENT LAYER
   ========================================================== */

.v4-content {
  position: relative;
  z-index: 4;
}

/* Full-page molecular particle canvas */
.v4-particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

/* Gap zones — chain shows through */
.v4-gap {
  height: 80px;
}
.v4-gap--short { height: 48px; }
.v4-gap--tall { height: 100px; }

/* ==========================================================
   HEADER
   ========================================================== */

.v4-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  pointer-events: none;
  transition: padding-top .5s cubic-bezier(.4,0,.2,1);
}
.v4-header.scrolled {
  padding-top: 15px;
}
.v4-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 40px;
  background: transparent;
  border-radius: 0;
  pointer-events: auto;          /* re-enable clicks on the actual bar */
  transition: max-width .5s cubic-bezier(.4,0,.2,1),
              padding .5s cubic-bezier(.4,0,.2,1),
              background .5s cubic-bezier(.4,0,.2,1),
              backdrop-filter .5s cubic-bezier(.4,0,.2,1),
              -webkit-backdrop-filter .5s cubic-bezier(.4,0,.2,1),
              border-radius .5s cubic-bezier(.4,0,.2,1);
}
/* ---- Scrolled state: elements compress, background fades in ---- */
.v4-header.scrolled .v4-header-inner {
  max-width: 1120px;
  padding: 10px 40px;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,.2);
}
.v4-header.scrolled .v4-header-nav ul {
  gap: 18px;
}
.v4-header.scrolled .v4-header-logo img {
  height: 56px;
}
.v4-header-logo img {
  height: 68px;
  filter: brightness(0) invert(1);
  transition: height .5s cubic-bezier(.4,0,.2,1);
}
.v4-header-nav ul {
  display: flex;
  gap: 28px;
  transition: gap .5s cubic-bezier(.4,0,.2,1);
}
.v4-header-nav .nav-link {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--v4-white);
  padding: 6px 14px;
  border-radius: 60px;
  transition: color .25s ease, background .25s ease;
}
.v4-header-nav .nav-link:hover {
  color: var(--v4-gold);
}
.v4-header-nav .nav-link.active {
  background: var(--v4-gold);
  color: #3a0a22;
}
.v4-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.v4-lang a { color: var(--v4-text-dim); font-size: 11px; font-weight: 600; letter-spacing: 1px; transition: color .2s; }
.v4-lang a.active { color: var(--v4-gold); }
.v4-lang .sep { color: var(--v4-text-dim); margin: 0 2px; }

.v4-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.v4-burger span {
  display: block;
  height: 2px;
  background: var(--v4-white);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

/* ==========================================================
   HERO — Transparent, chain visible behind
   ========================================================== */

.v4-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 40px 80px;
  position: relative;
}
/* Degrade noir du haut vers le bas pour lisibilite du texte hero */
.v4-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.8) 0%, rgba(0,0,0,.8) 65%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}
.v4-hero > * { position: relative; z-index: 2; }
.v4-hero::after {
  content: '';
  position: absolute;
  bottom: -400px;
  left: 0;
  width: 100%;
  height: 400px;
  background: linear-gradient(to bottom, #200e18 0%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}
.v4-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--v4-gold);
  margin-bottom: 32px;
}
.v4-hero-eyebrow .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--v4-plum);
  animation: v4-pulse 2s ease-in-out infinite;
}
@keyframes v4-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .3; transform: scale(.5); }
}
.v4-hero-title {
  font-size: clamp(44px, 5.5vw, 88px);
  font-weight: 900;
  color: var(--v4-white);
  line-height: 1.08;
  max-width: 800px;
  margin-bottom: 24px;
  text-shadow: 0 0 60px rgba(151,23,90,.2);
}
.v4-hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--v4-plum), var(--v4-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.v4-hero-sub {
  font-size: 18px;
  font-weight: 300;
  color: var(--v4-text);
  max-width: 520px;
  margin: 0 auto 44px;
}
.v4-hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 60px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--v4-white);
  background: rgba(151,23,90,.08);
  transition: all .35s ease;
}
.v4-hero-cta:hover {
  background: var(--v4-plum);
  border-color: var(--v4-plum);
  box-shadow: 0 0 40px rgba(151,23,90,.35), 0 0 80px rgba(151,23,90,.15);
}
/* Hero constellation — orbs around tagline */
/* Neural network curves between hero orbs */
.v4-neural-links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: visible;
}

.v4-hero-constellation {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 0 48px;
  max-width: 1100px;
  width: 100%;
}
.v4-hero-orb--left  { grid-column: 1; grid-row: 1; margin-top: 80px; margin-left: 30px; }
.v4-hero-center     { grid-column: 2; grid-row: 1; }
.v4-hero-orb--right { grid-column: 3; grid-row: 1; margin-top: -60px; }
.v4-hero-orb--bottom { grid-column: 2; grid-row: 2; justify-self: center; margin-top: 40px; margin-left: 80px; }

.v4-hero-center {
  text-align: center;
}

.v4-hero-orb {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
}
.v4-hero-orb {
  scale: 1;
  transition: scale .5s cubic-bezier(.25,.1,.25,1);
}
.v4-hero-orb.intro-done:hover {
  animation-play-state: paused;
  scale: 1.40;
}
/* --- Intro: initial hidden states --- */
.v4-hero-orb--left,
.v4-hero-orb--right {
  opacity: 0;
  transform: translateY(100vh);
  transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1), scale .5s cubic-bezier(.25,.1,.25,1);
}
.v4-hero-center .v4-hero-title,
.v4-hero-center .v4-hero-sub {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s ease, transform .7s ease;
}
.v4-hero-orb--bottom {
  opacity: 0;
  transform: scale(0);
  transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.34,1.56,.64,1), scale .5s cubic-bezier(.25,.1,.25,1);
}
.v4-scroll-hint {
  opacity: 0;
  transition: opacity .6s ease;
}
/* --- Intro: .intro-in reveals each element --- */
.v4-hero-orb--left.intro-in,
.v4-hero-orb--right.intro-in {
  opacity: 1;
  transform: translateY(0);
}
.v4-hero-center .v4-hero-title.intro-in,
.v4-hero-center .v4-hero-sub.intro-in {
  opacity: 1;
  transform: translateY(0);
}
.v4-hero-orb--bottom.intro-in {
  opacity: 1;
  transform: scale(1);
}
.v4-scroll-hint.intro-in {
  opacity: 1;
}
/* --- Intro done: enable floating animations --- */
.v4-hero-orb--left.intro-done {
  animation: v4-float-a 8s ease-in-out infinite;
}
.v4-hero-orb--right.intro-done {
  animation: v4-float-b 9s ease-in-out infinite;
}
.v4-hero-orb--bottom.intro-done {
  animation: v4-float-c 10s ease-in-out infinite;
}
/* --- Ghost orbs (clones that merge into Growth) --- */
.v4-ghost-orb {
  position: fixed;
  z-index: 1001;
  pointer-events: none;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.20);
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow:
    inset 0 -3px 8px rgba(255,255,255,.06),
    inset 0 3px 6px rgba(255,255,255,.10),
    0 0 30px rgba(255,255,255,.05);
  overflow: hidden;
  transition: left .9s cubic-bezier(.4,0,.2,1), top .9s cubic-bezier(.4,0,.2,1), width .9s cubic-bezier(.4,0,.2,1), height .9s cubic-bezier(.4,0,.2,1), opacity .4s ease;
}
.v4-ghost-orb::after {
  content: '';
  position: absolute;
  top: 8%;
  left: 18%;
  width: 35%;
  height: 20%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 80%, rgba(255,255,255,.14), transparent);
  transform: rotate(-15deg);
}
@keyframes v4-float-a {
  0%   { transform: translate(0, 0); }
  20%  { transform: translate(8px, -6px); }
  45%  { transform: translate(-5px, -12px); }
  70%  { transform: translate(10px, 4px); }
  90%  { transform: translate(-4px, 6px); }
  100% { transform: translate(0, 0); }
}
@keyframes v4-float-b {
  0%   { transform: translate(0, 0); }
  15%  { transform: translate(-8px, -7px); }
  40%  { transform: translate(6px, -12px); }
  60%  { transform: translate(-6px, 5px); }
  85%  { transform: translate(10px, -4px); }
  100% { transform: translate(0, 0); }
}
@keyframes v4-float-c {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(7px, -6px); }
  50%  { transform: translate(-8px, 5px); }
  75%  { transform: translate(5px, 8px); }
  100% { transform: translate(0, 0); }
}
.v4-orb-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: border-color .4s ease, box-shadow .4s ease, background .4s ease, backdrop-filter .4s ease;
  position: relative;
  overflow: hidden;
  box-shadow:
    inset 0 -4px 12px rgba(255,255,255,.08),
    inset 0 4px 8px rgba(255,255,255,.12),
    0 0 40px rgba(255,255,255,.06);
}
/* Pseudo-element: captures background and applies SVG distortion filter */
.v4-orb-circle::before {
  content: '';
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background: inherit;
  background-attachment: fixed;
  filter: url(#bubble-lens);
  z-index: -1;
}
/* Specular highlight — white reflection on top of the bubble */
.v4-orb-circle::after {
  content: '';
  position: absolute;
  top: 8%;
  left: 18%;
  width: 40%;
  height: 24%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 80%, rgba(255,255,255,.18), transparent);
  transform: rotate(-15deg);
  pointer-events: none;
  z-index: 1;
}
.v4-orb-circle svg {
  width: 48px;
  height: 48px;
  position: relative;
  z-index: 2;
}
.v4-orb-circle--plum { color: #fff; }
.v4-orb-circle--teal { color: #fff; }
.v4-orb-circle--gold { color: #fff; }
.v4-hero-orb:hover .v4-orb-circle--plum {
  border-color: var(--v4-plum);
  box-shadow:
    inset 0 -4px 12px rgba(151,23,90,.15),
    inset 0 4px 8px rgba(255,255,255,.15),
    0 0 48px rgba(151,23,90,.4);
  background: rgba(151,23,90,.12);
}
.v4-hero-orb:hover .v4-orb-circle--teal {
  border-color: var(--v4-teal);
  box-shadow:
    inset 0 -4px 12px rgba(0,128,128,.12),
    inset 0 4px 8px rgba(255,255,255,.15),
    0 0 48px rgba(0,128,128,.35);
  background: rgba(0,128,128,.10);
}
.v4-hero-orb:hover .v4-orb-circle--gold {
  border-color: var(--v4-gold);
  box-shadow:
    inset 0 -4px 12px rgba(196,163,90,.15),
    inset 0 4px 8px rgba(255,255,255,.15),
    0 0 48px rgba(196,163,90,.4);
  background: rgba(196,163,90,.12);
}
.v4-orb-label {
  font-family: 'Roboto Condensed', sans-serif;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,.85);
  position: relative;
  z-index: 2;
}

.v4-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--v4-text-dim);
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.v4-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--v4-plum), transparent);
  animation: v4-scroll-pulse 2s ease-in-out infinite;
}
@keyframes v4-scroll-pulse {
  0%, 100% { opacity: .3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(.6); }
}

/* ==========================================================
   SECTIONS — Alternance fond noir / fond blanc (50% opacity)
   ========================================================== */

.v4-section {
  position: relative;
  padding: 64px 0;
}

.v4-section > .v4-container {
  position: relative;
  border-radius: 20px;
  padding: 60px 48px;
  box-shadow: 0 8px 60px rgba(0,0,0,.15);
}

/* --- Dark glass — fond noir 50%, texte blanc --- */
.v4-section--dark > .v4-container {
  background: rgba(0,0,0,.88);
  border: 1px solid rgba(255,255,255,.25);
}

/* --- Light glass — fond blanc 66%, texte noir --- */
.v4-section--light > .v4-container {
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(0,0,0,.12);
}
.v4-section--light { color: #1a1a1a; }
.v4-section--light .v4-section-title { color: #1a1a1a; }
.v4-section--light .v4-section-number { color: var(--v4-plum); }
.v4-section--light .v4-card-title { color: #1a1a1a; }
.v4-section--light .v4-card-text,
.v4-section--light .v4-partners-intro,
.v4-section--light .v4-esg-card { color: #333; }
.v4-section--light .v4-card-tag { color: var(--v4-plum); }
.v4-section--light .v4-card-link { color: var(--v4-plum); }
.v4-section--light .v4-stat-label { color: rgba(0,0,0,.55); }
.v4-section--light .v4-esg-card strong { color: #1a1a1a; }
.v4-section--light .v4-dl-card .dl-label { color: #1a1a1a; }
.v4-section--light .v4-dl-card .dl-icon svg { stroke: var(--v4-plum); }

/* --- Beige glass — fond beige clair, texte sombre --- */
.v4-section--beige > .v4-container {
  background: rgba(235,225,210,.90);
  border: 1px solid rgba(180,160,130,.2);
}
.v4-section--beige { color: #2a2018; }
.v4-section--beige .v4-section-title { color: #2a2018; }
.v4-section--beige .v4-section-number { color: var(--v4-plum); }
.v4-section--beige .v4-card-title { color: #2a2018; }
.v4-section--beige .v4-card-text { color: #4a3a2a; }
.v4-section--beige .v4-card-tag { color: var(--v4-plum); }
.v4-section--beige .v4-card-link { color: var(--v4-plum); }
.v4-section--beige .v4-univers-card {
  background: rgba(255,255,255,.45);
  border-color: rgba(180,160,130,.25);
}
.v4-section--beige .v4-univers-card:hover {
  border-color: rgba(151,23,90,.25);
}
.v4-section--beige .v4-card-icon { color: var(--v4-plum); }
.v4-section--beige .v4-univers-card:nth-child(2) .v4-card-icon { color: var(--v4-teal); }
.v4-section--beige .v4-univers-card:nth-child(3) .v4-card-icon { color: var(--v4-gold); }

.v4-section-header { margin-bottom: 56px; }
.v4-section-number {
  font-size: 13px;
  font-weight: 700;
  color: var(--v4-gold);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 8px;
}
.v4-section-title {
  font-size: clamp(28px, 3vw, 46px);
  font-weight: 900;
  color: var(--v4-white);
  margin-bottom: 14px;
}
.v4-section-bar {
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--v4-plum), var(--v4-gold));
  border-radius: 2px;
}

/* ==========================================================
   UNIVERS — Horizontal cards
   ========================================================== */

.v4-univers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.v4-univers-card {
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 16px;
  padding: 40px 32px;
  transition: border-color .4s ease, transform .4s ease, box-shadow .4s ease;
  position: relative;
  overflow: hidden;
}
.v4-univers-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--card-accent, var(--v4-plum));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.v4-univers-card:hover::after { transform: scaleX(1); }
.v4-univers-card:hover {
  border-color: rgba(151,23,90,.25);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,.3);
}
.v4-card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  color: var(--card-accent, var(--v4-plum));
}
.v4-card-icon svg { width: 100%; height: 100%; }
.v4-card-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--v4-gold);
  margin-bottom: 10px;
}
.v4-card-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--v4-white);
  margin-bottom: 14px;
}
.v4-card-text {
  font-size: 15px;
  font-weight: 300;
  color: var(--v4-text);
  line-height: 1.7;
  margin-bottom: 20px;
}
.v4-card-link {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--v4-plum);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap .3s ease;
}
.v4-card-link:hover { gap: 12px; }
.v4-univers-card:nth-child(2) { --card-accent: var(--v4-teal); }
.v4-univers-card:nth-child(3) { --card-accent: var(--v4-gold); }

/* ==========================================================
   MISSION — Bento image + text (alternating rows)
   ========================================================== */

.v4-bento {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.v4-bento-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: stretch;
}
.v4-bento-row--reverse {
  direction: rtl;
}
.v4-bento-row--reverse > * {
  direction: ltr;
}
.v4-bento-row--reverse .v4-bento-img {
  position: relative;
}
.v4-bento-row--reverse .v4-bento-img img {
  position: absolute;
  inset: 0;
  aspect-ratio: auto;
  height: 100%;
}
.v4-bento-img {
  border-radius: 14px;
  overflow: hidden;
}
.v4-bento-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 4 / 3;
  transition: transform .5s ease;
}
.v4-bento-row:hover .v4-bento-img img {
  transform: scale(1.04);
}
.v4-bento-text {
  padding: 8px 20px;
}
.v4-bento-index {
  font-size: 12px;
  font-weight: 700;
  color: var(--v4-plum);
  letter-spacing: 2px;
  display: block;
  margin-bottom: 10px;
}
.v4-bento-index--light { color: rgba(255,255,255,.7); }
.v4-bento-text h3 {
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 14px;
  color: #1a1a1a;
}
.v4-bento-text h3 .accent { color: var(--v4-plum); }
.v4-bento-text p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.75;
  color: #444;
  margin-bottom: 10px;
}
.v4-bento-text p:last-child { margin-bottom: 0; }
/* Full-width banner row */
.v4-bento-full {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  min-height: 320px;
}
.v4-bento-full img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: absolute;
  inset: 0;
}
.v4-bento-overlay {
  position: relative;
  z-index: 1;
  padding: 48px 44px;
  background: linear-gradient(90deg, rgba(0,0,0,.65) 0%, rgba(0,0,0,.25) 70%, transparent 100%);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 560px;
}
.v4-bento-overlay h3 {
  font-size: 24px;
  font-weight: 800;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 14px;
}
.v4-bento-overlay h3 .accent { color: var(--v4-gold); }
.v4-bento-overlay p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.75;
  color: rgba(255,255,255,.85);
}

/* ==========================================================
   TIMELINE
   ========================================================== */

.v4-timeline {
  position: relative;
  padding: 20px 0;
}
.v4-timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--v4-plum) 0%, var(--v4-plum) 85%, transparent);
  transform: translateX(-50%) scaleY(0);
  transform-origin: top;
  transition: none;
}
.v4-timeline-item {
  display: flex;
  align-items: flex-start;
  position: relative;
  margin-bottom: 48px;
  width: 50%;
  padding-right: 48px;
}
.v4-timeline-item:nth-child(odd) {
  margin-left: 50%;
  padding-right: 0;
  padding-left: 48px;
}
.v4-timeline-item:last-child {
  margin-bottom: 0;
}
.v4-timeline-item {
  will-change: transform, opacity;
}
.v4-timeline-dot {
  position: absolute;
  top: 28px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--v4-plum);
  box-shadow: 0 0 16px rgba(151,23,90,.5), 0 0 32px rgba(151,23,90,.2);
  z-index: 2;
}
.v4-timeline-item:nth-child(even) .v4-timeline-dot {
  right: -7px;
}
.v4-timeline-item:nth-child(odd) .v4-timeline-dot {
  left: -7px;
}
.v4-timeline-card {
  padding: 32px 36px;
  background: rgba(255,255,255,.25);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 14px;
  transition: border-color .35s ease, background .35s ease;
  width: 100%;
}
.v4-timeline-card:hover {
  border-color: rgba(151,23,90,.25);
  background: rgba(255,255,255,.30);
}
.v4-timeline-card h3 {
  font-size: 22px;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 12px;
}
.v4-timeline-card h3 .accent { color: var(--v4-plum); }
.v4-timeline-card p {
  font-size: 15px;
  font-weight: 300;
  color: #333;
  line-height: 1.8;
}
/* Timeline on dark sections */
.v4-section--dark .v4-timeline-card {
  background: rgba(255,255,255,.07);
  border-color: rgba(255,255,255,.12);
}
.v4-section--dark .v4-timeline-card:hover {
  background: rgba(255,255,255,.12);
}
.v4-section--dark .v4-timeline-card h3 { color: var(--v4-white); }
.v4-section--dark .v4-timeline-card p { color: var(--v4-text-dim); }

/* ==========================================================
   CHIFFRES — Infographic stat cards
   ========================================================== */

.v4-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.v4-stat-card {
  text-align: center;
  padding: 48px 24px 44px;
  border-radius: 20px;
  background: rgba(255,255,255,.03);
  border: none;
  position: relative;
}
/* Icon */
.v4-stat-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 24px;
}
.v4-stat-icon svg {
  width: 100%;
  height: 100%;
}
.v4-stat-card:nth-child(odd) .v4-stat-icon { color: var(--v4-plum); }
.v4-stat-card:nth-child(even) .v4-stat-icon { color: var(--v4-gold); }
/* Value */
.v4-stat-value {
  font-size: clamp(52px, 6.5vw, 80px);
  font-weight: 900;
  line-height: .9;
  margin-bottom: 18px;
}
.v4-stat-card:nth-child(odd) .v4-stat-value {
  color: var(--v4-plum);
  text-shadow: 0 0 30px rgba(151,23,90,.25);
}
.v4-stat-card:nth-child(even) .v4-stat-value {
  color: var(--v4-gold);
  text-shadow: 0 0 30px rgba(196,163,90,.2);
}
.v4-stat-unit {
  font-size: .35em;
  vertical-align: super;
  opacity: .7;
}
/* Separator bar */
.v4-stat-bar {
  width: 40px;
  height: 2px;
  margin: 0 auto 18px;
  border-radius: 2px;
}
.v4-stat-card:nth-child(odd) .v4-stat-bar {
  background: linear-gradient(90deg, var(--v4-plum), var(--v4-gold));
}
.v4-stat-card:nth-child(even) .v4-stat-bar {
  background: linear-gradient(90deg, var(--v4-gold), var(--v4-plum));
}
/* Label */
.v4-stat-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--v4-text-dim);
  line-height: 1.6;
}

/* ==========================================================
   PARTENAIRES — Orbiting grid
   ========================================================== */

.v4-partners-intro {
  max-width: 600px;
  font-size: 16px;
  font-weight: 300;
  color: var(--v4-text);
  margin-bottom: 48px;
  line-height: 1.8;
}
.v4-partners-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 16px;
}
.v4-partner-cell {
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  background: #fff;
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 12px;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.v4-partner-cell:hover {
  border-color: rgba(151,23,90,.2);
  box-shadow: 0 4px 16px rgba(0,0,0,.1);
}
.v4-partner-cell img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: opacity .3s ease;
}

/* ==========================================================
   ESG
   ========================================================== */

.v4-esg-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.v4-esg-card {
  padding: 28px 32px;
  background: rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.2);
  border-left: 3px solid var(--v4-plum);
  border-radius: 0 12px 12px 0;
  font-size: 15px;
  font-weight: 300;
  color: var(--v4-text);
  line-height: 1.7;
  transition: border-color .3s ease;
}
.v4-esg-card:hover { border-color: var(--v4-gold); }
.v4-esg-card strong { color: var(--v4-white); font-weight: 600; }

.v4-download-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}
.v4-dl-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 10px;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.v4-dl-card:hover {
  border-color: var(--v4-plum);
  box-shadow: 0 0 24px rgba(151,23,90,.12);
}
.v4-dl-card .dl-icon { width: 36px; height: 36px; flex-shrink: 0; }
.v4-dl-card .dl-icon svg { width: 100%; height: 100%; stroke: var(--v4-plum); }
.v4-dl-card .dl-label { font-size: 14px; font-weight: 600; color: var(--v4-white); line-height: 1.4; }

/* ==========================================================
   FOOTER
   ========================================================== */

.v4-pre-footer {
  position: relative;
  z-index: 4;
  background: rgba(0,0,0,.80);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 56px 0;
}
.v4-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
}
.v4-footer-nav li { margin-bottom: 8px; }
.v4-footer-nav a { font-size: 14px; color: var(--v4-text-dim); transition: color .2s; }
.v4-footer-nav a:hover { color: var(--v4-white); }
.v4-footer-brand { text-align: center; }
.v4-footer-brand .footer-logo { height: 96px; margin: 0 auto 20px; filter: brightness(0) invert(1); }
.v4-footer-brand .footer-follow { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; color: var(--v4-text-dim); margin-bottom: 12px; }
.v4-footer-socials { display: flex; justify-content: center; gap: 10px; }
.v4-footer-socials .social-link {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  color: var(--v4-text-dim); transition: all .3s ease;
}
.v4-footer-socials .social-link:hover {
  border-color: var(--v4-plum); color: var(--v4-white);
  box-shadow: 0 0 16px rgba(151,23,90,.25);
}
.v4-footer-socials .social-link svg { width: 15px; height: 15px; fill: currentColor; }
.v4-footer-contact { text-align: right; }
.v4-footer-contact a { color: var(--v4-text-dim); transition: color .2s; }
.v4-footer-contact a:hover { color: var(--v4-white); }
.v4-footer-contact .footer-email { display: block; margin-bottom: 6px; font-size: 14px; }
.v4-footer-contact .footer-phone { font-size: 14px; margin-bottom: 10px; }
.v4-footer-contact .footer-address { font-size: 13px; line-height: 1.6; }

.v4-site-footer {
  position: relative;
  z-index: 4;
  background: #000;
  padding: 24px 0;
}
.v4-footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 20px;
  font-size: 11px;
  color: var(--v4-text-dim);
}
.v4-footer-bar a { color: var(--v4-text-dim); transition: color .2s; }
.v4-footer-bar a:hover { color: var(--v4-text); }

/* ==========================================================
   SCROLL TO TOP
   ========================================================== */

.v4-scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--v4-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .35s ease, transform .35s ease, background .25s ease, border-color .25s ease;
}
.v4-scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.v4-scroll-top:hover {
  background: var(--v4-plum);
  border-color: var(--v4-plum);
}
.v4-scroll-top svg {
  width: 22px;
  height: 22px;
}

/* ==========================================================
   REVEAL
   ========================================================== */

.v4-reveal {
  opacity: 0;
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */

@media (max-width: 992px) {
  .v4-header.scrolled .v4-header-inner {
    border-radius: 16px;
  }
  .v4-header-nav { display: none; }
  .v4-burger { display: flex; }
  .v4-header-nav.open {
    display: flex; position: fixed; top: 0; right: 0;
    width: 300px; height: 100vh; background: var(--v4-card);
    flex-direction: column; padding: 80px 40px 40px;
    box-shadow: -4px 0 24px rgba(0,0,0,.5); z-index: 999;
  }
  .v4-header-nav.open ul { flex-direction: column; gap: 20px; }
  .v4-header-nav.open .nav-link { color: var(--v4-text); font-size: 14px; }
  .v4-hero-constellation {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
    gap: 24px;
  }
  .v4-hero-orb--left  { grid-column: 1; grid-row: 1; justify-self: center; }
  .v4-hero-orb--right { grid-column: 2; grid-row: 1; justify-self: center; }
  .v4-hero-center     { grid-column: 1 / -1; grid-row: 2; }
  .v4-hero-orb--bottom { grid-column: 1 / -1; grid-row: 3; margin-top: 0; }
  .v4-orb-circle { width: 140px; height: 140px; gap: 6px; }
  .v4-orb-circle svg { width: 38px; height: 38px; }
  .v4-orb-label { font-size: 10px; letter-spacing: 1.5px; }
  .v4-bento-row { grid-template-columns: 1fr; }
  .v4-bento-row--reverse { direction: ltr; }
  .v4-bento-full { min-height: 260px; }
  .v4-timeline-line { left: 20px; }
  .v4-timeline-item {
    width: 100%;
    padding-right: 0;
    padding-left: 52px;
  }
  .v4-timeline-item:nth-child(odd) {
    margin-left: 0;
    padding-left: 52px;
    padding-right: 0;
  }
  .v4-timeline-item:nth-child(odd) .v4-timeline-dot,
  .v4-timeline-item:nth-child(even) .v4-timeline-dot {
    left: 13px;
    right: auto;
  }
  .v4-univers-grid { grid-template-columns: 1fr; }
  .v4-stats-row { grid-template-columns: 1fr 1fr; }
  .v4-partners-grid { grid-template-columns: repeat(4, 1fr); }
  .v4-esg-cols { grid-template-columns: 1fr; }
  .v4-footer-grid { grid-template-columns: 1fr; text-align: center; }
  .v4-footer-contact { text-align: center; }

}

@media (max-width: 768px) {
  .v4-container { padding: 0 24px; }
  .v4-section { padding: 48px 0; }
  .v4-section > .v4-container { padding: 40px 28px; border-radius: 16px; }
  .v4-gap { height: 48px; }
  .v4-gap--tall { height: 64px; }
  .v4-bento-overlay { padding: 32px 28px; }
  .v4-stats-row { grid-template-columns: 1fr 1fr; gap: 16px; }
  .v4-partners-grid { grid-template-columns: repeat(2, 1fr); }
  .v4-download-row { grid-template-columns: 1fr; }

}

@media (max-width: 576px) {
  .v4-stats-row { grid-template-columns: 1fr; }
  .v4-partners-grid { grid-template-columns: 1fr 1fr; }

}