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

  :root {
    --plum: #2E2840;
    --plum-light: #4a4260;
    --gold: #C9A96E;
    --beige: #FAF8F4;
    --beige-dark: #F0EDE6;
    --text-muted: #7a7490;
    --dark-bg: #0f0e14;
    --dark-surface: #1a1825;
    --white: #ffffff;
    --serif: 'Cormorant Garamond', Georgia, serif;
    --sans: 'Inter', system-ui, sans-serif;
  }

  html { scroll-behavior: smooth; }

  body {
    font-family: var(--sans);
    background: var(--beige);
    color: var(--plum);
    overflow-x: hidden;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 4rem;
    transition: background 0.4s, backdrop-filter 0.4s;
  }
  nav.scrolled {
    background: rgba(250, 248, 244, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(46,40,64,0.08);
  }
  .nav-logo img {
    height: 28px;
    opacity: 0.92;
  }
  .nav-cta {
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--plum);
    text-decoration: none;
    border: 1px solid rgba(46,40,64,0.3);
    padding: 0.55rem 1.4rem;
    border-radius: 100px;
    transition: all 0.2s;
  }
  .nav-cta:hover {
    background: var(--plum);
    color: var(--white);
  }

  /* ── HERO ── */
  .hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
  }
  .hero-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .hero-overlay {
    display: none;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 2rem;
    max-width: 860px;
  }

  .hero-eyebrow { display: none; }

  .hero-headline {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 300;
    line-height: 1.00;
    color: var(--plum);
    letter-spacing: -0.01em;
    margin-bottom: 3.5rem;
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 1s ease 0.5s forwards;
  }

  .hero-headline em {
    font-style: italic;
    color: var(--plum-light);
  }

  .hero-subline {
    font-family: var(--sans);
    font-size: clamp(1.3rem, 1.8vw, 1.2rem);
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    margin-bottom: 2.6rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1s ease 0.75s forwards;
    color: var(--plum);
  }

  .hero-subline-2 {
    font-family: var(--sans);
    font-size: clamp(0.85rem, 1.4vw, 1.4rem);
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 1s ease 0.75s forwards;
  }

  .hero-cta {
    display: inline-block;
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--white);
    background: var(--plum);
    text-decoration: none;
    padding: 1rem 2.5rem;
    border-radius: 100px;
    transition: all 0.25s;
    opacity: 0;
    transform: translateY(16px);
    animation: fadeUp 1s ease 1s forwards;
  }
  .hero-cta:hover {
    background: var(--gold);
    transform: translateY(-1px);
  }

  /* Ciblage du logo du Hero */
.hero-logo, #hero-logo {
  width: 555px;       /* Ajuste cette valeur (ex: 120px ou 150px) jusqu'à ce que ce soit parfait */
  height: auto;       /* Conserve les proportions parfaites du logo */
  display: block;     /* Évite les comportements d'alignement bizarres */
  margin: 0 auto;     /* Centre le logo horizontalement si nécessaire */
  margin-bottom: 2.5rem;
}

  .hero-scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeIn 1s ease 1.6s forwards;
  }
  .hero-scroll span {
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(46,40,64,0.4);
  }
  .scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(46,40,64,0.4), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
  }

  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeIn {
    to { opacity: 1; }
  }
  @keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.15); }
  }

  /* ── REVEAL UTILITY ── */
  .reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.12s; }
  .reveal-delay-2 { transition-delay: 0.24s; }
  .reveal-delay-3 { transition-delay: 0.36s; }

  /* ── SECTION BASE ── */
  section {
    padding: 8rem 4rem;
  }
  .section-inner {
    max-width: 1100px;
    margin: 0 auto;
  }
  .section-label {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.2rem;
  }
  .section-title {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 300;
    line-height: 1.2;
    color: var(--plum);
    margin-bottom: 1.5rem;
  }
  .section-sub {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--text-muted);
    line-height: 1.75;
    max-width: 560px;
  }

  /* ── SECTION 2: THE PROBLEM ── */
  .problem {
    background: var(--beige);
  }

  .problem-inner {
    max-width: 1200px;
  }

  .problem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-top: clamp(2.5rem, 5vw, 4rem);
    width: 100%;
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
  }

  .problem-card {
    background: linear-gradient(155deg, #FAF7F4 0%, #F4F0F5 48%, #EDE8F2 100%);
    border: 1px solid rgba(46, 40, 64, 0.07);
    border-radius: 24px;
    padding: clamp(1.75rem, 5vw, 2.75rem);
    min-height: auto;
    display: flex;
    flex-direction: column;
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.65),
      0 12px 40px rgba(46, 40, 64, 0.04);
    transition:
      transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
      box-shadow 0.65s cubic-bezier(0.16, 1, 0.3, 1),
      opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .problem-card.visible {
    transform: translateY(0);
  }

  .problem-card.reveal {
    opacity: 0;
    transform: translateY(36px);
  }

  .problem-card.reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  .problem-statement {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin: 0;
  }

  .problem-lead {
    display: block;
    font-family: var(--sans);
    font-size: clamp(1.2rem, 3.2vw, 1.45rem);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.025em;
    color: #1B1726;
  }

  .problem-follow {
    display: block;
    font-family: var(--sans);
    font-size: clamp(0.85rem, 2.8vw, 0.85rem);
    font-weight: 400;
    line-height: 1.30;
    letter-spacing: -0.015em;
    color: #3D3848;
  }

  .problem-divider {
    width: 100%;
    height: 1px;
    margin: clamp(1.25rem, 3.5vw, 1.75rem) 0 clamp(1rem, 2.5vw, 1.35rem);
    background: rgba(27, 23, 38, 0.12);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .problem-card.visible .problem-divider {
    transform: scaleX(1);
  }

  .problem-card.reveal-delay-2 .problem-divider { transition-delay: 0.28s; }
  .problem-card.reveal-delay-3 .problem-divider { transition-delay: 0.42s; }

  .problem-consequence {
    font-family: var(--sans);
    font-size: clamp(1.20rem, 2.2vw, 1.20rem);
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.01em;
    text-transform: none;
    color: var(--gold);
    line-height: 1.6;
    margin: 0;
    opacity: 0;
    transform: translateY(10px);
    transition:
      opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .problem-card.visible .problem-consequence {
    opacity: 1;
    transform: translateY(0);
  }

  .problem-card.reveal-delay-2 .problem-consequence { transition-delay: 0.38s; }
  .problem-card.reveal-delay-3 .problem-consequence { transition-delay: 0.52s; }

  .problem-card.visible:hover {
    transform: translateY(-6px);
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, 0.65),
      0 20px 48px rgba(46, 40, 64, 0.08);
  }

  @media (min-width: 768px) {
    .problem-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
      max-width: none;
    }

    .problem-lead {
      font-size: clamp(1.25rem, 1.8vw, 1.5rem);
    }

    .problem-follow {
      font-size: clamp(1.1rem, 1.5vw, 1.25rem);
    }
  }

  @media (min-width: 1024px) {
    .problem-grid {
      gap: 2rem;
    }

    .problem-card {
      padding: 2.5rem 2.25rem;
    }
  }

  /* ── SECTION 3: MISSING LAYER ── */
  .missing-layer {
    background: rgb(40, 25, 36);
    color: var(--white);
    padding: 8rem 4rem;
  }
  .missing-layer .section-title { color: var(--white); }
  .missing-layer .section-sub { color: rgba(255,255,255,0.5); }
  .missing-layer .section-label { color: var(--gold); }

  .ml-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 0;
  }
  .ml-title-main {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 4.5vw, 3.8rem);
    font-weight: 300;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 1.2rem;
  }
  .ml-title-main em { font-style: italic; color: rgba(255,255,255,0.6); }

  .ml-sub {
    font-size: 1rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.664);
    max-width: 520px;
    line-height: 1.7;
  }

  .ml-intro {
    margin-top: 4rem;
    margin-bottom: 5rem;
    max-width: 640px;
    font-family: var(--serif);
    font-size: clamp(1.25rem, 2.2vw, 1.6rem);
    font-weight: 300;
    font-style: italic;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.55;
  }

  .ml-cases-lead {
    width: 100%;
    margin-top: 7rem;
    margin-top: 12%;
    margin-bottom: calc(3.5rem + 4%);
    text-align: center;
    color: var(--gold);
  }

  /* Carousel */
  .carousel-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
  }
  .carousel-track {
    display: grid;
    grid-template-columns: 1fr;
  }
  .carousel-slide {
    display: none;
  }
  .carousel-slide.active { display: block; }
  .carousel-video-panel {
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--dark-surface);
    border: 1px solid rgba(255,255,255,0.06);
  }

  .slide-left .case-theme {
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.5rem;
  }
  .slide-left .case-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 300;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 3rem;
    font-style: italic;
  }

  .case-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  .case-step {
    display: flex;
    gap: 1.2rem;
    align-items: flex-start;
    opacity: 0;
    transform: translateX(-12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .case-step.step-visible {
    opacity: 1;
    transform: translateX(0);
  }
  .step-label {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    min-width: 72px;
    padding-top: 2px;
  }
  .step-text {
    font-size: 0.92rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.65;
  }
  .step-text strong {
    color: var(--white);
    font-weight: 400;
  }

  .slide-right {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .slide-visual {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: 16px;
    background: var(--dark-surface);
    border: 1px solid rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
  }
  .slide-visual-inner {
    text-align: center;
    padding: 2rem;
  }
  .visual-metric {
    font-family: var(--serif);
    font-size: 4rem;
    font-weight: 300;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 0.5rem;
  }
  .visual-metric-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .visual-pulse {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(201,169,110,0.06) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
  }

  /* Carousel nav */
  .carousel-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 4rem;
  }
  .carousel-dot {
    width: 32px;
    height: 2px;
    background: rgba(255,255,255,0.15);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 2px;
    margin-bottom: 3rem;
  }
  .carousel-dot.active {
    background: var(--gold);
    width: 48px;
  }
  .carousel-left {
    position: relative;
  }
  .carousel-arrow-next {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #C9A84C;
    opacity: 0.4;
    font-size: 2rem;
    cursor: pointer;
    transition: opacity 0.3s ease;
    padding: 0;
    line-height: 1;
  }
  .carousel-arrow-next:hover { opacity: 0.85; }

  /* ── SECTION 4: HOW IT WORKS — SCROLLYTELLING ── */

  /* Override default section padding — the sticky panel manages its own */
  .how-scroll {
    padding: 0;
    background: var(--beige-dark);
    position: relative;
    height: 500vh; /* 5× viewport = scroll space for all 4 phases */
  }

  /* ── Sticky viewport (stays fixed while the user scrolls) ── */
  .how-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding: 7rem 4rem 3rem;
  }

  /* ── Header (label + title) ── */
  .how-hdr {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto 2.5rem;
    flex-shrink: 0;
  }

  /* ── Stage wraps timeline + cards ── */
  .how-stage {
    flex: 1;
    position: relative;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* ── Horizontal progress timeline ── */
  .how-tl {
    flex-shrink: 0;
    position: relative;
    height: 3.5rem;
    margin-bottom: 3rem;
  }

  /* Grey track line */
  .how-tl::before {
    content: '';
    position: absolute;
    left: 8px;
    right: 8px;
    top: 8px;
    height: 1px;
    background: rgba(46,40,64,0.12);
  }

  /* Gold fill — animated via GSAP scaleX from 0 → 1 */
  .how-tl-fill {
    position: absolute;
    left: 8px;
    top: 8px;
    width: calc(100% - 16px);
    height: 1px;
    background: linear-gradient(90deg, var(--gold), rgba(201,169,110,0.55));
    transform-origin: left center;
    transform: scaleX(0);
    will-change: transform;
  }

  /* Row of 3 dots + labels */
  .how-tl-points {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }

  .how-pt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
  }

  /* Dot — turns gold when the step is active (animated via GSAP) */
  .how-pt-dot {
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: var(--beige-dark);
    border: 1.5px solid rgba(46,40,64,0.2);
    position: relative;
    z-index: 1;
    will-change: background-color, border-color;
  }

  .how-pt > span {
    font-family: var(--serif);
    font-size: 0.95rem;
    font-weight: 300;
    color: rgba(46,40,64,0.25);
    will-change: color;
  }

  /* ── Step cards (stacked, one visible at a time) ── */
  .how-cards {
    flex: 1;
    position: relative;
  }

  .how-card {
    position: absolute;
    inset: 0;
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    will-change: opacity, transform;
  }

  .how-card-num {
    font-family: var(--serif);
    font-size: clamp(4rem, 8vw, 6rem);
    font-weight: 300;
    color: rgba(46,40,64,0.18);
    line-height: 1;
    margin-bottom: 0.75rem;
  }

  .how-card-num .step-label {
    display: block;
    font-family: var(--sans, sans-serif);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 0.3rem;
  }

  .how-card-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 300;
    color: var(--plum);
    margin-bottom: 1.2rem;
    line-height: 1.15;
  }

  .how-card-desc {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.75;
    max-width: 540px;
    margin-bottom: 1.75rem;
  }

  .how-step-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold);
    border: 1.5px solid rgba(201,169,110,0.7);
    background: rgba(201,169,110,0.08);
    padding: 7px 16px;
    border-radius: 100px;
  }

  /* ── Synthesis overlay (covers full sticky panel) ── */
  .how-synth {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    will-change: opacity;
  }

  /* Phase 1 : big numbers centred */
  .synth-spot {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8vw;
  }

  .synth-big {
    font-family: var(--serif);
    font-size: clamp(4.5rem, 14vw, 9rem);
    font-weight: 300;
    color: var(--plum);
    line-height: 1;
    opacity: 0;
    will-change: transform, opacity;
  }

  /* Phase 2 : 3-column summary table */
  .synth-tbl {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    will-change: opacity, transform;
    padding: 0 4rem;
    max-width: 1100px;
    margin: 0 auto;
    left: 0; right: 0;
  }

  .synth-col {
    flex: 1;
    text-align: center;
    padding: 2rem 3rem;
    border-right: 1px solid rgba(46,40,64,0.1);
  }

  .synth-col:last-child {
    border-right: none;
  }

  .synth-val {
    font-family: var(--serif);
    font-size: clamp(2.8rem, 5.5vw, 4.5rem);
    font-weight: 300;
    color: var(--plum);
    line-height: 1;
    margin-bottom: 1rem;
  }

  .synth-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    opacity: 0;
    will-change: opacity;
  }

  /* ── Mobile : disable scrollytelling, show everything statically ── */
  @media (max-width: 767px) {
    .how-scroll { height: auto; }

    .how-sticky {
      position: static;
      height: auto;
      padding: 5rem 1.5rem 4rem;
      display: block;
      overflow: visible;
    }

    .how-hdr { margin-bottom: 2rem; }

    .how-stage {
      display: block;
      overflow: visible;
      position: static;
    }

    .how-tl { display: none; }

    .how-cards {
      position: static;
      display: flex;
      flex-direction: column;
      gap: 2.5rem;
      margin-bottom: 3rem;
    }

    .how-card {
      position: static;
      opacity: 1;
    }

    .how-synth {
      position: static;
      opacity: 1;
      pointer-events: auto;
    }

    .synth-spot { display: none; }

    .synth-tbl {
      position: static;
      opacity: 1;
      display: flex;
      flex-direction: column;
      padding: 0;
      border-top: 1px solid rgba(46,40,64,0.1);
    }

    .synth-col {
      border-right: none;
      border-bottom: 1px solid rgba(46,40,64,0.1);
      padding: 2rem 0;
      text-align: left;
    }

    .synth-col:last-child { border-bottom: none; }
    .synth-sub { opacity: 1; }
  }

  /* ── SECTION 5: THE PLATFORM ── */
  .platform {
    padding: 0;
    background: transparent;
  }
  .platform-carousel-wrap {
    position: relative;
    display: grid;
    grid-template-columns: 340px 1fr;
    grid-template-rows: auto 1fr;
    grid-template-areas:
      "header header"
      "nav    detail";
    column-gap: 80px;
    min-height: 600px;
    overflow: hidden;
    background: linear-gradient(135deg, #e8e2f0 0%, #d8d6eb 35%, #cdd4e8 70%, #e4dde8 100%);
    width: 100vw;
    margin-left: 50%;
    transform: translateX(-50%);
    padding: 60px max(4rem, calc((100vw - 1100px) / 2));
  }
  .platform-carousel-wrap::before {
    content: '';
    position: absolute;
    bottom: -40px; right: -40px;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200,185,165,0.25) 0%, transparent 70%);
    pointer-events: none;
  }
  .platform-arc-deco {
    position: absolute;
    bottom: 0; right: 0;
    width: 260px; height: 200px;
    pointer-events: none;
  }
  .platform-header {
    grid-area: header;
    padding-bottom: 2rem;
    position: relative;
    z-index: 2;
  }
  .platform-header .section-label {
    color: var(--gold);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .platform-header .section-title {
    color: var(--plum);
    margin-bottom: 0;
  }
  .platform-left {
    grid-area: nav;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
  }
  .platform-nav {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
  }
  .platform-detail {
    grid-area: detail;
    display: flex;
    align-items: flex-start;
    position: relative;
    z-index: 2;
  }
  .platform-detail-glass {
    width: 100%;
    max-width: 680px;
    background: rgba(255,255,255,0.35);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.65);
    border-radius: 16px;
    padding: 44px 52px;
    box-shadow: 0 8px 32px rgba(120,110,160,0.1);
  }
  .platform-detail-inner {
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  .platform-detail-inner.fading {
    opacity: 0;
    transform: translateY(6px);
  }
  .pd-tagline {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: #a094c0;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .pd-title {
    font-family: 'Libre Baskerville', Georgia, serif;
    font-size: 28px;
    font-weight: 400;
    color: #2d2545;
    margin-bottom: 16px;
    line-height: 1.3;
  }
  .pd-desc {
    font-size: 15px;
    color: #5a5275;
    line-height: 1.8;
    margin-bottom: 24px;
  }
  .pd-kpis {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
  }
  .pd-kpi {
    font-size: 12px;
    padding: 5px 13px;
    border-radius: 20px;
    background: rgba(255,255,255,0.5);
    border: 1px solid rgba(180,165,210,0.4);
    color: #7a6e9a;
    backdrop-filter: blur(6px);
  }
  .pn-item {
    cursor: pointer;
    border-radius: 12px;
    transition: all 1.2s cubic-bezier(0.4,0,0.2,1);
    overflow: hidden;
    width: 100%;
  }
  .pn-item .pn-code {
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--gold);
  }
  .pn-item .pn-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .pn-item.pn-xs { padding: 5px 0; opacity: 0.25; }
  .pn-item.pn-xs .pn-code { display: none; }
  .pn-item.pn-xs .pn-name { font-size: 12px; color: #5a5070; }
  .pn-item.pn-sm { padding: 7px 0; opacity: 0.5; }
  .pn-item.pn-sm .pn-code { font-size: 9px; }
  .pn-item.pn-sm .pn-name { font-size: 15px; color: #5a5070; }
  .pn-item.pn-md { padding: 10px 0; opacity: 0.72; }
  .pn-item.pn-md .pn-code { font-size: 10px; }
  .pn-item.pn-md .pn-name { font-size: 17px; color: #3d3555; }
  .pn-item.pn-active {
    padding: 14px 16px;
    opacity: 1;
    background: rgba(255,255,255,0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.7);
    box-shadow: 0 4px 20px rgba(120,110,160,0.12);
  }
  .pn-item.pn-active .pn-code { font-size: 11px; margin-bottom: 3px; color: var(--gold); }
  .pn-item.pn-active .pn-name { font-size: 22px; color: #2d2545; font-family: 'Libre Baskerville', Georgia, serif; font-weight: 400; }

  /* ── SECTION 6: WHO IT'S FOR ── */
  .who {
    background: var(--beige);
  }
  .who-tabs {
    display: flex;
    gap: 0;
    margin-top: 4rem;
    border-bottom: 1px solid rgba(46,40,64,0.1);
  }
  .who-tab {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
  }
  .who-tab.active {
    color: var(--plum);
    border-bottom-color: var(--gold);
    font-weight: 500;
  }
  .who-content {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    padding-top: 4rem;
  }
  .who-content.active { display: grid; }
  .who-role-label {
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1rem;
  }
  .who-role-title {
    font-family: var(--serif);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 300;
    color: var(--plum);
    margin-bottom: 1.2rem;
    line-height: 1.2;
  }
  .who-role-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.75;
  }
  .who-visual {
    aspect-ratio: 3/4;
    border-radius: 12px;
    overflow: hidden;
    background: var(--plum);
  }
  .who-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    filter: grayscale(20%);
  }

  /* ── SECTION 7: VALUE ── */
  .value {
    background: var(--beige-dark);
  }
  .value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem 4rem;
    margin-top: 5rem;
  }
  .value-item {}
  .value-item .v-title {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--plum);
    margin-bottom: 0.5rem;
  }
  .value-item .v-sub {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--gold);
    margin-bottom: 0.6rem;
  }
  .value-item .v-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  /* ── SECTION 8: ABOUT ── */
  .about {
    background: var(--dark-bg);
    color: var(--white);
    text-align: center;
    padding: 6rem 4rem;
  }
  .about-text {
    font-family: var(--serif);
    font-size: clamp(1.3rem, 2.5vw, 2rem);
    font-weight: 300;
    color: rgba(255,255,255,0.75);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.65;
  }
  .about-text em { color: var(--white); font-style: italic; }

  /* ── SECTION 9: CTA FINAL ── */
  .cta-final {
    background: var(--beige);
    text-align: center;
    padding: 10rem 4rem;
  }
  .cta-final .section-label { text-align: center; }
  .cta-final .section-title { text-align: center; margin: 0 auto 1.5rem; }
  .cta-final .cta-sub {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-style: italic;
    font-family: var(--serif);
  }
  .cta-btn {
    display: inline-block;
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--white);
    background: var(--plum);
    text-decoration: none;
    padding: 1.1rem 3rem;
    border-radius: 100px;
    transition: all 0.25s;
  }
  .cta-btn:hover {
    background: var(--gold);
    transform: translateY(-2px);
  }
  .cta-note {
    margin-top: 1.5rem;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.05em;
  }

  /* ── FOOTER ── */
  footer {
    background: var(--dark-bg);
    padding: 2.5rem 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255,255,255,0.05);
  }
  footer img { height: 20px; opacity: 0.5; filter: invert(1); }
  footer span {
    font-size: 12px;
    color: rgba(255,255,255,0.25);
    letter-spacing: 0.05em;
  }

  @media (max-width: 768px) {
    nav { padding: 1.2rem 1.5rem; }
    section { padding: 5rem 1.5rem; }
    .problem {
      padding-left: clamp(1.25rem, 5vw, 1.75rem);
      padding-right: clamp(1.25rem, 5vw, 1.75rem);
    }
    .problem-card {
      padding: clamp(1.5rem, 6vw, 2rem);
    }
    .how-steps, .value-grid { grid-template-columns: 1fr; }
    .carousel-wrapper { grid-template-columns: 1fr; }
    .carousel-video-panel { display: block; width: 100%; position: relative; padding-bottom: 56.25%; border-radius: 12px; overflow: hidden; margin-top: 1.5rem; aspect-ratio: unset; }
    .carousel-video-panel video { position: absolute !important; top: 0 !important; left: 0 !important; width: 100% !important; height: 100% !important; object-fit: cover !important; }
    .who-content { grid-template-columns: 1fr; }
    .who-visual { display: none; }
    footer { flex-direction: column; gap: 1rem; text-align: center; }

    /* ── PLATFORM: layout vertical sur mobile ── */
    .platform-carousel-wrap {
      grid-template-columns: 1fr;
      grid-template-rows: auto auto auto;
      grid-template-areas:
        "header"
        "nav"
        "detail";
      column-gap: 0;
      row-gap: 1.5rem;
      min-height: unset;
      overflow: visible;
      padding: 40px 1.5rem 48px;
    }
    .platform-left {
      width: 100%;
    }
    .platform-nav {
      width: 100%;
    }
    .pn-item.pn-active .pn-name {
      font-size: 18px;
    }
    .platform-detail {
      width: 100%;
    }
    .platform-detail-glass {
      padding: 28px 20px;
      max-width: 100%;
    }
    .pd-title {
      font-size: 22px;
    }
  }

  /* ── SCROLL LOGO ── */
  #scroll-logo {
    position: fixed;
    top: 1.2rem;
    left: 2rem;
    z-index: 101;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
    transform: translateY(-8px);
  }
  #scroll-logo img {
    height: 32px;
    display: block;
  }
  #scroll-logo.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  /* Nav: remove left logo space, just keep cta on right */
  nav {
    justify-content: flex-end;
  }

  /* Style pour la headline combinée */
.hero-headline {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* Première partie : Moderne (Inter) */
.headline-modern {
  font-family: 'Inter', sans-serif;
  font-style: italic;
  line-height: 0.85;
  font-weight: 500; /* Ajuste à 400 (plus fin) ou 600 (plus épais) selon tes préférences */
  letter-spacing: -0.02em; /* Effet serré style Apple/SaaS */
  margin-bottom: 6px; /* Espace léger avant la deuxième ligne */
}

/* Deuxième partie : Traditionnelle/Serif (Cormorant Garamond) */
.headline-serif {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 500;
  margin-bottom: 3.5px;
}

.headline-serif-bold {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-weight: 600;
  margin-bottom: 3.5px;
}
/* Disable native video controls and pointer interaction */
video { pointer-events: none; }
video::-webkit-media-controls,
video::-webkit-media-controls-start-playback-button { display: none !important; }