/* ═══════════════════════════════════════════════════
   LN AGENCY — CSS v3
   Vidéo hero · 3 blocs · Typographie élite
   ═══════════════════════════════════════════════════ */

:root {
    /* Or — harmonisé logo */
    --gold-deep:  #7A5C10;
    --gold-base:  #B8860B;
    --gold:       #D4AF37;
    --gold-light: #E8CC6A;
    --gold-cream: #F0E08A;

    /* Noirs */
    --black:      #000000;
    --black-warm: #0D0C0A;
    --grey-900:   #111110;
    --grey-800:   #181716;
    --grey-700:   #222120;
    --grey-500:   #4A4845;
    --grey-400:   #706E6A;
    --grey-300:   #9A9895;
    --grey-200:   #C8C6C2;
    --grey-100:   #EDEBE7;
    --white:      #FFFFFF;

    /* Gradients */
    --g-gold:      linear-gradient(135deg, var(--gold-deep) 0%, var(--gold) 45%, var(--gold-cream) 72%, var(--gold-light) 100%);
    --g-gold-text: linear-gradient(130deg, var(--gold-base) 0%, var(--gold) 40%, var(--gold-cream) 68%, var(--gold-light) 100%);
    --g-gold-soft: linear-gradient(135deg, rgba(122,92,16,.0) 0%, rgba(212,175,55,.07) 50%, rgba(122,92,16,.0) 100%);

    /* Borders */
    --b:     1px solid rgba(180,140,20,.2);
    --b-s:   1px solid rgba(212,175,55,.42);

    /* Typo */
    --serif: 'Cormorant Garamond', Georgia, serif;
    --sans:  'Montserrat', system-ui, sans-serif;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── RESET ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--black-warm);
    color: var(--grey-200);
    font-family: var(--sans);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    opacity: 0;
    transition: opacity .6s ease;
}
body.loaded { opacity: 1; }

::selection { background: rgba(212,175,55,.18); color: var(--gold-cream); }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: var(--gold-base); }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.1; color: var(--white); }
h1 { font-size: clamp(2.6rem, 5.5vw, 6.5rem); }
h2 { font-size: clamp(2.2rem, 4vw, 5rem); }
h3 { font-size: clamp(.92rem, 1.2vw, 1.05rem); font-family: var(--sans); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--grey-100); }

a { color: inherit; text-decoration: none; }

/* ── CONTAINERS ──────────────────────────────────── */
.bloc__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 3.5rem;
}

/* ══════════════════════════════════════════════════
   NAV
══════════════════════════════════════════════════ */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.4rem 0;
    transition: all .5s var(--ease);
}
.nav.scrolled {
    background: rgba(5,4,3,.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: .9rem 0;
    border-bottom: var(--b);
}
.nav__inner {
    max-width: 1280px; margin: 0 auto;
    padding: 0 3.5rem;
    display: flex; align-items: center; justify-content: space-between;
}
.nav__logo img { height: 58px; width: auto; filter: drop-shadow(0 2px 10px rgba(212,175,55,.22)); transition: opacity .3s; }
.nav__logo img:hover { opacity: .8; }

.nav__links { display: flex; align-items: center; gap: 2.5rem; }
.nav__link {
    font-size: .66rem; font-weight: 500; letter-spacing: .18em;
    text-transform: uppercase; color: var(--white); transition: color .3s;
    position: relative;
}
.nav__link::after {
    content: ''; position: absolute; bottom: -3px; left: 0;
    width: 0; height: 1px; background: var(--g-gold);
    transition: width .4s var(--ease);
}
.nav__link:hover { color: var(--gold-light); }
.nav__link:hover::after { width: 100%; }

.nav__cta {
    font-size: .66rem; font-weight: 500; letter-spacing: .12em;
    text-transform: uppercase; color: var(--gold);
    border: var(--b-s); padding: .55rem 1.3rem;
    transition: all .35s var(--ease);
}
.nav__cta:hover { color: var(--gold-cream); background: rgba(212,175,55,.07); }

.burger {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.burger span { display: block; width: 22px; height: 1px; background: var(--gold); transition: all .3s; }
.burger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* MOBILE MENU */
.mmenu {
    position: fixed; inset: 0; z-index: 90;
    background: rgba(0,0,0,.97);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity .4s;
}
.mmenu.open { opacity: 1; pointer-events: all; }
.mmenu__inner { display: flex; flex-direction: column; align-items: center; gap: 2.5rem; }
.mmenu__link { font-family: var(--serif); font-size: 2.6rem; font-weight: 300; color: var(--white); transition: color .3s; }
.mmenu__link:hover { color: var(--gold); }
.mmenu__cta { font-size: .72rem; font-weight: 500; letter-spacing: .15em; text-transform: uppercase; color: var(--gold); border: var(--b-s); padding: .9rem 2.2rem; margin-top: .5rem; }

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

.hero__video-wrap {
    position: absolute; inset: 0; z-index: 0;
    /* Fallback image si vidéo indisponible */
    background: url('../images/hero-bg.jpg') center center / cover no-repeat;
}

.hero__video {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover; object-position: center center;
    /* Si la vidéo ne charge pas, on voit le background de .hero__video-wrap */
}

.hero__voverlay {
    position: absolute; inset: 0;
    background:
        linear-gradient(to bottom,
            rgba(5,4,3,.35) 0%,
            rgba(5,4,3,.50) 35%,
            rgba(5,4,3,.72) 70%,
            rgba(5,4,3,1)   100%),
        linear-gradient(to right,
            rgba(5,4,3,.55) 0%,
            rgba(5,4,3,.25) 50%,
            transparent 100%);
}

.hero__content {
    position: relative; z-index: 2;
    max-width: 1280px; margin: 0 auto;
    padding: 10rem 3.5rem 6rem;
    width: 100%;
}

/* EYEBROW */
.hero__eyebrow {
    display: flex; align-items: center; gap: 1.2rem;
    margin-bottom: 2.8rem;
    opacity: 0; animation: fadeUp .8s var(--ease) .3s forwards;
}
.eyebrow__line { display: block; width: 32px; height: 1px; background: var(--g-gold); flex-shrink: 0; }
.eyebrow__text { font-size: .6rem; font-weight: 500; letter-spacing: .28em; text-transform: uppercase; color: var(--gold-base); }

/* TITRE HERO — double typographie */
.hero__title {
    display: flex; flex-direction: column;
    margin-bottom: 2.2rem;
    font-family: var(--serif); font-weight: 300;
}

.hero__title-plain {
    font-size: clamp(2.4rem, 5vw, 6rem);
    color: var(--white);
    line-height: 1.05;
    text-shadow: 0 2px 40px rgba(0,0,0,.7);
    opacity: 0; animation: fadeUp .9s var(--ease) .55s forwards;
    letter-spacing: -.01em;
}

/* "Infrastructure stratégique" — police différente + dorée */
.hero__title-gold {
    font-size: clamp(2rem, 4.2vw, 5.2rem);
    font-style: italic;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -.01em;
    background: var(--g-gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    opacity: 0; animation: fadeUp .9s var(--ease) .75s forwards;
    /* "infrastructure stratégique" dans une autre police */
}

/* Sous-phrase hero */
.hero__sub {
    font-size: clamp(.95rem, 1.5vw, 1.2rem);
    color: var(--grey-200);
    line-height: 1.7;
    max-width: 560px;
    margin-bottom: 3.5rem;
    text-shadow: 0 1px 16px rgba(0,0,0,.75);
    opacity: 0; animation: fadeUp .9s var(--ease) .95s forwards;
}
.hero__sub strong em {
    font-style: italic; font-weight: 600;
    color: var(--white);
    -webkit-text-fill-color: var(--white);
    text-shadow: 0 1px 18px rgba(0,0,0,.6);
}

/* HERO CTA — en dernier */
.hero .btn--hero {
    opacity: 0; animation: fadeUp .9s var(--ease) 1.15s forwards;
}

/* SCROLL HINT */
.hero__scroll-hint {
    position: absolute; bottom: 2.5rem; left: 50%;
    transform: translateX(-50%);
    opacity: 0; animation: fadeIn 1s ease 1.8s forwards;
}
.scroll-line {
    width: 1px; height: 52px;
    background: linear-gradient(180deg, transparent, var(--gold-base), transparent);
    animation: scrollAnim 2s ease-in-out infinite;
}

/* ══════════════════════════════════════════════════
   BOUTONS
══════════════════════════════════════════════════ */
.btn {
    display: inline-flex; align-items: center; gap: .8rem;
    font-family: var(--sans); font-size: .68rem; font-weight: 500;
    letter-spacing: .13em; text-transform: uppercase;
    padding: 1rem 2rem; cursor: pointer; border: none;
    transition: all .4s var(--ease); white-space: nowrap;
    position: relative; overflow: hidden;
}

/* Bouton hero — outline doré lumineux */
.btn--hero {
    color: var(--gold-cream);
    border: var(--b-s);
    background: rgba(180,140,20,.06);
    backdrop-filter: blur(4px);
    font-size: clamp(.6rem, 1.1vw, .72rem);
    padding: clamp(.8rem, 1.5vw, 1rem) clamp(1.2rem, 2.5vw, 2rem);
    letter-spacing: .1em;
    white-space: normal;
    text-align: center;
    line-height: 1.4;
}
.btn--hero::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(180,140,20,.12), rgba(240,224,138,.08));
    opacity: 0; transition: opacity .4s;
}
.btn--hero:hover { transform: translateY(-2px); box-shadow: 0 10px 40px rgba(212,175,55,.2); border-color: var(--gold); }
.btn--hero:hover::before { opacity: 1; }

/* Bouton gold — rempli */
.btn--gold {
    background: var(--g-gold);
    color: var(--black);
    font-size: clamp(.6rem, 1.1vw, .72rem);
    padding: clamp(.8rem, 1.5vw, 1rem) clamp(1.2rem, 2.5vw, 2rem);
    letter-spacing: .1em;
    white-space: normal;
    text-align: center;
    line-height: 1.4;
}
.btn--gold::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--gold-cream), var(--gold));
    opacity: 0; transition: opacity .4s;
}
.btn--gold:hover { transform: translateY(-2px); box-shadow: 0 10px 38px rgba(212,175,55,.25); }
.btn--gold:hover::before { opacity: 1; }
.btn--gold > * { position: relative; z-index: 1; }
.btn--full { width: 100%; justify-content: center; }

.btn__arrow {
    width: 20px; height: 10px; flex-shrink: 0;
    transition: transform .35s var(--ease);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ══════════════════════════════════════════════════
   BLOCS — COMMUN
══════════════════════════════════════════════════ */
.bloc {
    padding: 8rem 0;
    position: relative;
}

.bloc--dark {
    background: var(--grey-900);
}
.bloc--dark::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 1px; background: var(--g-gold); opacity: .22;
}

.bloc--mid {
    background: var(--black-warm);
    position: relative;
}
.bloc--mid::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse 70% 50% at 50% 50%, rgba(180,140,20,.03), transparent);
    pointer-events: none;
}

.bloc--action {
    background: var(--grey-900);
}
.bloc--action::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 1px; background: var(--g-gold); opacity: .2;
}

/* ── LABEL / NUMEROS ─────────────────────────────── */
.bloc__label {
    display: flex; align-items: center; gap: 1.4rem;
    margin-bottom: 2.5rem;
}
.bloc__num {
    font-family: var(--serif); font-size: 4.5rem; font-weight: 300;
    color: rgba(180,140,20,.1); line-height: 1; flex-shrink: 0;
    letter-spacing: -.03em; user-select: none;
}
.bloc__tag {
    font-size: .6rem; font-weight: 500; letter-spacing: .24em;
    text-transform: uppercase; color: var(--gold-base);
}

/* ── TITRES SECTIONS ─────────────────────────────── */
.bloc__title {
    font-family: var(--serif); font-weight: 300;
    color: var(--white); margin-bottom: 3rem;
}
.bloc__title em {
    font-style: italic;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.bloc__subtitle {
    font-size: .7rem; font-weight: 500; letter-spacing: .18em;
    text-transform: uppercase; color: var(--grey-400);
    margin-top: -2rem; margin-bottom: 3rem;
}
/* Ligne d'ancrage au-dessus du titre principal de bloc */
.bloc__eyebrow {
    font-size: .62rem;
    font-weight: 500;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--grey-500);
    margin-bottom: 1.4rem;
}
.bloc__header-split { margin-bottom: 3rem; }

/* ── TEXTES ─────────────────────────────────────── */
.t-body {
    font-size: clamp(.88rem, 1.1vw, 1rem);
    color: var(--white);
    line-height: 1.85;
    margin-bottom: 1.4rem;
    font-weight: 300;
}
/* Utilitaire blanc explicite */
.t-white { color: var(--white) !important; }
/* Bloc 1 — textes pleine largeur */
.bloc__body--single {
    grid-template-columns: 1fr;
    max-width: 820px;
    gap: 0;
}
/* Texte listé en italique léger */
.t-list {
    font-style: italic;
    color: var(--grey-200);
}
/* Dernière phrase, couleur plus lumineuse */
.t-closing {
    color: var(--white) !important;
    font-weight: 400;
}
/* Phrase « Elles gagnent » — dorée, serif, sans fond clip */
.t-accent {
    font-family: var(--serif);
    font-size: clamp(1.1rem, 1.7vw, 1.5rem);
    font-style: italic;
    font-weight: 400;
    color: var(--gold-light);
    border-left: 2px solid rgba(212,175,55,.45);
    padding-left: 1.4rem;
    margin-bottom: 1.8rem;
    line-height: 1.5;
}
/* Variante « Ce sont des maths » entièrement dorée */
.t-accent--gold {
    font-family: var(--serif);
    font-size: clamp(1.1rem, 1.7vw, 1.45rem);
    font-style: italic;
    font-weight: 400;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    border-left: 2px solid rgba(212,175,55,.45);
    padding-left: 1.4rem;
    margin-bottom: 0;
    line-height: 1.5;
    display: block;
}
/* « Elle amplifie » — dorée dans bloc 2 */
.t-gold-sign {
    font-family: var(--serif);
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    font-style: italic;
    font-weight: 400;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-top: .5rem;
    line-height: 1.55;
}
/* Accent dans les pills (Ce sont des maths) */
.pill-accent {
    display: block;
    margin-top: .6rem;
    font-style: italic;
    color: var(--gold-light);
    font-family: var(--serif);
    font-size: .9rem;
}

/* ── CTA WRAPPER ─────────────────────────────────── */
.bloc__cta { margin-top: 4rem; }

/* ══════════════════════════════════════════════════
   BLOC 1 — RÉALITÉ
══════════════════════════════════════════════════ */
.bloc__body {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 5rem;
    margin-bottom: 1rem;
}

.bloc__text-col { display: flex; flex-direction: column; }
.bloc__text-col .t-body:last-child { margin-bottom: 0; }

/* Aside stats */
.bloc__aside {
    display: flex; flex-direction: column;
    gap: 0; justify-content: center;
    border-left: var(--b); padding-left: 3.5rem;
}
.aside-stat {
    padding: 2rem 0;
    border-bottom: var(--b);
}
.aside-stat:first-child { padding-top: 0; }
.aside-stat:last-child  { border-bottom: none; }

.aside-stat__val {
    display: block;
    font-family: var(--serif); font-size: clamp(2.5rem, 3.5vw, 4rem);
    font-weight: 400; line-height: 1;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; margin-bottom: .5rem;
}
.aside-stat__val em { font-style: normal; font-size: .55em; -webkit-text-fill-color: transparent; }
.aside-stat__label { font-size: .72rem; color: var(--grey-400); line-height: 1.5; }

/* ══════════════════════════════════════════════════
   BLOC 2 — ARCHITECTE
══════════════════════════════════════════════════ */
.bloc__body--cols {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

/* Piliers infra */
.infra-pillars {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    margin-top: 1rem;
}

.infra-pill {
    padding: 2.2rem 2rem;
    border: var(--b);
    background: rgba(10,10,10,.5);
    transition: all .45s var(--ease);
    position: relative; overflow: hidden;
}
.infra-pill::before {
    content: ''; position: absolute;
    bottom: 0; left: 0; right: 0; height: 1px;
    background: var(--g-gold);
    transform: scaleX(0); transform-origin: left;
    transition: transform .45s var(--ease);
}
.infra-pill:hover { background: rgba(180,140,20,.05); border-color: rgba(212,175,55,.32); transform: translateY(-3px); }
.infra-pill:hover::before { transform: scaleX(1); }

.infra-pill__ico {
    display: block; font-size: 1.3rem; margin-bottom: 1.2rem;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.infra-pill h3 { font-size: .76rem; margin-bottom: .7rem; color: var(--grey-100); }
.infra-pill p { font-size: .82rem; color: var(--grey-200); line-height: 1.7; }

/* Nav mise à jour pour le bloc 04 */
.nav__links a[href="#impact"] { display: none; }

/* Bloc--dark utilisé deux fois — séparateur visuel entre 03 et 04 */
#impact { border-bottom: 1px solid rgba(180,140,20,.15); }

/* Colonnes textes bloc 02 — lisibilité maximale */
.infra-col { display: flex; flex-direction: column; }
.infra-col .t-body { color: var(--grey-100); }
.infra-col .t-gold-sign { color: transparent; /* handled by background-clip */ }

/* ══════════════════════════════════════════════════
   LAYOUT SPLIT — blocs 1, 2, 3
══════════════════════════════════════════════════ */
.bloc__body--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
}
.split__left  { display: flex; flex-direction: column; }
.split__right { display: flex; flex-direction: column; gap: 2px; }

/* Séparateur horizontal doré */
.bloc__divider {
    width: 40px; height: 1px;
    background: var(--g-gold);
    margin: 1.8rem 0;
    opacity: .5;
}

/* Liste à puces élite */
.t-list-items {
    list-style: none;
    display: flex; flex-direction: column; gap: .55rem;
    margin-bottom: 1.4rem;
}
.t-list-items li {
    font-size: clamp(.85rem, 1.1vw, .95rem);
    color: var(--white);
    font-weight: 300;
    padding-left: 1.2rem;
    position: relative;
}
.t-list-items li::before {
    content: '—';
    position: absolute; left: 0;
    color: var(--gold-base);
    font-size: .7rem; top: .15rem;
}
.t-list-items--gold li { color: var(--gold-light); }
.t-list-items--gold li::before { color: var(--gold-cream); }

/* Insight box */
.insight-box {
    border: var(--b);
    padding: 2.2rem;
    background: rgba(180,140,20,.03);
}
.insight-box--gold {
    border-color: rgba(212,175,55,.35);
    background: rgba(180,140,20,.06);
}
.insight-box__label {
    display: block;
    font-size: .58rem; font-weight: 600; letter-spacing: .22em;
    text-transform: uppercase; color: var(--gold-base);
    margin-bottom: 1.4rem;
}
.insight-box__text {
    font-size: .9rem; color: var(--white);
    line-height: 1.85; font-weight: 300;
}

/* Market cards — bloc 2 */
.market-cards {
    display: flex; flex-direction: column; gap: 2px;
}
.mcard {
    border: var(--b);
    padding: 2rem 2.2rem;
    background: rgba(10,10,10,.5);
    transition: all .4s var(--ease);
}
.mcard:hover { background: rgba(180,140,20,.05); border-color: rgba(212,175,55,.3); transform: translateX(4px); }
.mcard--gold { border-color: rgba(212,175,55,.3); background: rgba(180,140,20,.05); }
.mcard__ico {
    display: block; font-size: 1rem; margin-bottom: .9rem;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.mcard h3 { font-size: .72rem; margin-bottom: .5rem; color: var(--grey-100); }
.mcard p  { font-size: .84rem; color: var(--white); line-height: 1.7; }
.mcard__accent {
    display: block;
    margin-top: .9rem;
    font-family: var(--serif);
    font-style: italic;
    font-weight: 400;
    font-size: .95rem;
    color: var(--gold-light);
    line-height: 1.5;
}

/* A→B transform — bloc 3 */
.ab-transform {
    display: flex; flex-direction: column; gap: 0;
    margin-top: 1.5rem;
}
.ab-block {
    border: var(--b);
    padding: 1.8rem 2rem;
}
.ab-block--a { background: rgba(80,40,40,.15); border-color: rgba(180,60,60,.2); }
.ab-block--b { background: rgba(20,60,40,.15); border-color: rgba(180,140,20,.3); }
.ab-block ul { list-style: none; display: flex; flex-direction: column; gap: .4rem; }
.ab-block--a li { font-size: .85rem; color: #9A7070; font-weight: 300; padding-left: 1rem; position: relative; }
.ab-block--a li::before { content: '×'; position: absolute; left: 0; color: #7A4040; font-size: .75rem; }
.ab-block--b li { font-size: .85rem; color: var(--gold-light); font-weight: 300; padding-left: 1rem; position: relative; }
.ab-block--b li::before { content: '✓'; position: absolute; left: 0; color: var(--gold-base); font-size: .7rem; }
.ab-label {
    display: block;
    font-family: var(--serif); font-size: 2rem; font-weight: 300;
    color: rgba(180,60,60,.5); margin-bottom: .8rem; line-height: 1;
}
.ab-label--b {
    color: transparent;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ab-arrow {
    text-align: center; padding: .5rem;
    font-size: 1.2rem; color: var(--grey-600);
    background: var(--grey-900);
    border-left: var(--b); border-right: var(--b);
}

/* Pillars 2 colonnes dans le split */
.infra-pillars--2col {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 2px;
}

/* ══════════════════════════════════════════════════
   MODÈLE BUSINESS — côte à côte
══════════════════════════════════════════════════ */
.biz-model {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    max-width: 100%;
    margin-bottom: 5rem;
    align-items: stretch;
}

.biz-frame {
    padding: 2.4rem 2.6rem;
}

/* Cadre AVANT — rouge sombre élite */
.biz-frame--before {
    background: rgba(80, 28, 28, .18);
    border: 1px solid rgba(180, 55, 55, .28);
}

/* Flèche de transition — verticale, centrée */
.biz-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    padding: 1.2rem 1.8rem;
    background: rgba(10,9,8,.7);
    border-top: 1px solid rgba(180,140,20,.18);
    border-bottom: 1px solid rgba(180,140,20,.18);
    min-width: 100px;
}
.biz-arrow--h {
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.biz-arrow__icon {
    font-size: 1.4rem;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}
.biz-arrow__text {
    font-size: .52rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--gold-base);
    text-align: center;
}

/* Cadre APRÈS — vert sombre élite */
.biz-frame--after {
    background: rgba(18, 55, 35, .22);
    border: 1px solid rgba(40, 140, 80, .28);
}

.biz-frame__label {
    display: block;
    font-size: .56rem;
    font-weight: 600;
    letter-spacing: .22em;
    text-transform: uppercase;
    margin-bottom: 1.4rem;
}
.biz-frame--before .biz-frame__label { color: rgba(200, 90, 90, .75); }
.biz-frame--after  .biz-frame__label { color: rgba(80, 180, 110, .75); }

/* Listes dans les cadres */
.biz-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .55rem;
}
.biz-list li {
    font-size: clamp(.83rem, 1.05vw, .92rem);
    font-weight: 300;
    line-height: 1.6;
    padding-left: 1.3rem;
    position: relative;
}
.biz-frame--before .biz-list li { color: #9A6A6A; }
.biz-frame--before .biz-list li::before {
    content: '×';
    position: absolute; left: 0;
    color: rgba(180, 60, 60, .6);
    font-size: .78rem; top: .08rem;
}
.biz-frame--after .biz-list li { color: var(--gold-light); }
.biz-frame--after .biz-list li::before {
    content: '✓';
    position: absolute; left: 0;
    color: rgba(60, 160, 100, .7);
    font-size: .72rem; top: .1rem;
}

/* Responsive biz-model */
@media (max-width: 768px) {
    .biz-model { grid-template-columns: 1fr; }
    .biz-arrow--h {
        flex-direction: row;
        padding: .9rem 1.6rem;
        border-left: 1px solid rgba(180,140,20,.18);
        border-right: 1px solid rgba(180,140,20,.18);
        border-top: none;
        border-bottom: none;
    }
    .biz-arrow__icon { font-size: 1.1rem; }
    .biz-frame { padding: 1.8rem 1.6rem; }
}

/* ══════════════════════════════════════════════════
   BLOC 03 — TITRE "optimisation" en or
══════════════════════════════════════════════════ */
.title-gold-word {
    font-style: italic;
    background: var(--g-gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Intro texte — largeur lisible */
.arch-intro {
    max-width: 680px;
    margin-bottom: 4rem;
}
.arch-intro .t-body {
    color: var(--grey-100);
    font-size: clamp(.9rem, 1.2vw, 1.02rem);
    line-height: 1.85;
}

/* ──────────────────────────────────────────────────
   TRADUCTION BUSINESS — 5 outcome cards
────────────────────────────────────────────────── */
.biz-translation {
    margin-bottom: 4rem;
}
.biz-translation__label {
    display: block;
    font-size: .58rem;
    font-weight: 600;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: var(--gold-base);
    margin-bottom: 2.4rem;
    padding-bottom: 1.2rem;
    border-bottom: var(--b);
}

/* Grille 5 cartes : 3 + 2 */
.outcome-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
}

/* Carte outcome */
.outcome-card {
    border: var(--b);
    padding: 2rem 1.8rem;
    background: rgba(10,9,8,.6);
    position: relative;
    overflow: hidden;
    transition: background .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
}
.outcome-card::before {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--g-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .5s var(--ease);
}
.outcome-card:hover {
    background: rgba(180,140,20,.05);
    border-color: rgba(212,175,55,.32);
    transform: translateY(-4px);
}
.outcome-card:hover::before { transform: scaleX(1); }

/* Carte clé — mise en valeur doublée */
.outcome-card--key {
    border-color: rgba(212,175,55,.25);
    background: rgba(180,140,20,.04);
}
.outcome-card--key::before { transform: scaleX(.35); }
.outcome-card--key:hover::before { transform: scaleX(1); }

/* En-tête de carte */
.outcome-card__top {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin-bottom: 1.1rem;
}
.outcome-card__ico {
    font-size: 1.05rem;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    flex-shrink: 0;
}
.outcome-card__title {
    font-size: .7rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.outcome-card__text {
    font-size: .85rem;
    color: var(--white);
    line-height: 1.8;
    font-weight: 300;
}

/* 2 dernières cartes centrées sur la grille (colonnes 1 et 2 sur 3) */
.outcome-grid .outcome-card:nth-child(4) { grid-column: 1; }
.outcome-grid .outcome-card:nth-child(5) { grid-column: 2; }

/* Responsive — outcome cards */
@media (max-width: 1024px) {
    .outcome-grid { grid-template-columns: repeat(2, 1fr); }
    .outcome-grid .outcome-card:nth-child(4),
    .outcome-grid .outcome-card:nth-child(5) { grid-column: auto; }
    .outcome-grid .outcome-card--key { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
    .biz-model { max-width: 100%; }
    .biz-frame { padding: 1.8rem 1.6rem; }
    .biz-arrow { padding: .8rem 1.6rem; }
    .outcome-grid { grid-template-columns: 1fr; }
    .outcome-grid .outcome-card:nth-child(4),
    .outcome-grid .outcome-card:nth-child(5),
    .outcome-grid .outcome-card--key { grid-column: auto; }
    .arch-intro { max-width: 100%; }
}

/* ══════════════════════════════════════════════════
   LAYOUT SPLIT — blocs 1, 2, 3
══════════════════════════════════════════════════ */
.action__grid {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 6rem; align-items: start;
}
.action__left { position: sticky; top: 7rem; }
.action__body { margin-bottom: 3rem; }
.action__body .t-body:last-child { margin-bottom: 0; }

/* Form box */
.contact-box {
    border: var(--b);
    padding: 3rem;
    background: rgba(10,9,8,.8);
    backdrop-filter: blur(6px);
}
.contact-box__label {
    font-size: .6rem; font-weight: 500; letter-spacing: .24em;
    text-transform: uppercase; color: var(--gold-base);
    margin-bottom: 2.2rem; display: block;
}
.cform { display: flex; flex-direction: column; gap: 1.3rem; }
.cform__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
.cform__group { display: flex; flex-direction: column; gap: .42rem; }
.cform__group label { font-size: .58rem; font-weight: 500; letter-spacing: .22em; text-transform: uppercase; color: var(--gold-base); }
.cform__group input,
.cform__group textarea {
    background: rgba(180,140,20,.04);
    border: var(--b); color: var(--white);
    font-family: var(--sans); font-size: .85rem; font-weight: 300;
    padding: .82rem 1rem; outline: none; resize: none;
    transition: all .35s var(--ease); -webkit-appearance: none;
}
.input--white { color: var(--white) !important; }
.cform__group input::placeholder,
.cform__group textarea::placeholder { color: rgba(255,255,255,.38); }
.cform__group input:focus,
.cform__group textarea:focus {
    border-color: rgba(212,175,55,.42);
    background: rgba(180,140,20,.07);
    box-shadow: 0 0 0 3px rgba(180,140,20,.05);
}

/* Confirm */
.cform__confirm {
    text-align: center; padding: 3.5rem;
    border: var(--b); background: rgba(180,140,20,.03);
}
.cform__check {
    font-size: 2rem; margin-bottom: 1.2rem;
    background: var(--g-gold-text);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cform__confirm p {
    font-family: var(--serif); font-size: 1.15rem;
    font-weight: 300; color: var(--grey-200); line-height: 1.65;
}

/* ══════════════════════════════════════════════════
   REVEAL
══════════════════════════════════════════════════ */
.reveal {
    opacity: 0; transform: translateY(24px);
    transition: opacity .85s var(--ease), transform .85s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
.footer {
    background: var(--black);
    border-top: var(--b);
    padding: 4.5rem 0 2.5rem;
}
.footer__inner {
    max-width: 1280px; margin: 0 auto;
    padding: 0 3.5rem;
    display: flex; flex-direction: column; gap: 3rem;
}
.footer__brand { display: flex; align-items: center; gap: 2rem; }
.footer__logo { height: 52px; width: auto; filter: drop-shadow(0 2px 8px rgba(180,140,20,.2)); }
.footer__tagline { font-size: .78rem; color: var(--white); font-weight: 300; line-height: 1.65; max-width: 340px; }

.footer__contact {
    display: flex; flex-direction: column; gap: .9rem;
    padding-top: 2rem; border-top: 1px solid rgba(180,140,20,.1);
}
.footer__contact-link {
    display: inline-flex; align-items: center; gap: .75rem;
    font-size: .8rem; color: var(--white); font-weight: 300;
    transition: color .3s;
}
.footer__contact-link svg { width: 16px; height: 16px; opacity: .6; flex-shrink: 0; }
.footer__contact-link:hover { color: var(--gold-light); }
.footer__contact-link:hover svg { opacity: 1; }

/* Liens légaux dans le footer */
.footer__legal {
    display: flex;
    gap: 2.2rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid rgba(180,140,20,.1);
}
.footer__legal a {
    font-size: .62rem;
    font-weight: 400;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--white);
    opacity: .55;
    transition: color .3s, opacity .3s;
}
.footer__legal a:hover {
    color: var(--gold-base);
    opacity: 1;
}

.footer__nav {
    display: flex; gap: 2.5rem; flex-wrap: wrap;
    padding-top: 2rem; border-top: 1px solid rgba(180,140,20,.1);
}
.footer__nav a {
    font-size: .65rem; font-weight: 400; letter-spacing: .13em;
    text-transform: uppercase; color: var(--white); transition: color .3s;
}
.footer__nav a:hover { color: var(--gold-base); }

.footer__bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 2rem; border-top: 1px solid rgba(180,140,20,.08);
    font-size: .65rem; color: var(--white); letter-spacing: .05em;
}
.footer__status { display: flex; align-items: center; gap: .5rem; }
.sdot {
    display: block; width: 5px; height: 5px; border-radius: 50%;
    background: var(--gold-base); box-shadow: 0 0 8px rgba(180,140,20,.5);
    animation: dotPulse 2.5s ease-in-out infinite;
}

/* ══════════════════════════════════════════════════
   KEYFRAMES
══════════════════════════════════════════════════ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; } to { opacity: 1; }
}
@keyframes scrollAnim {
    0%,100% { opacity: .25; transform: scaleY(1); }
    50%      { opacity: .9;  transform: scaleY(.75); }
}
@keyframes dotPulse {
    0%,100% { opacity: 1; }
    50%      { opacity: .3; }
}

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .bloc__body { grid-template-columns: 1fr; gap: 3rem; }
    .bloc__body--split { grid-template-columns: 1fr; gap: 3.5rem; }
    .bloc__aside { border-left: none; padding-left: 0; border-top: var(--b); padding-top: 2.5rem; flex-direction: row; gap: 2rem; }
    .aside-stat { flex: 1; border-bottom: none; border-right: var(--b); padding: 0 2rem; }
    .aside-stat:last-child { border-right: none; }
    .bloc__body--cols { grid-template-columns: 1fr; gap: 2.5rem; }
    .infra-pillars { grid-template-columns: repeat(2, 1fr); }
    .infra-pillars--2col { grid-template-columns: repeat(2, 1fr); }
    .action__grid { grid-template-columns: 1fr; gap: 4rem; }
    .action__left { position: static; }
    .btn--gold, .btn--hero { font-size: .65rem; }
    .market-cards { flex-direction: row; flex-wrap: wrap; }
    .mcard { flex: 1; min-width: 200px; }
}

@media (max-width: 768px) {
    .bloc__container { padding: 0 1.5rem; }
    .nav__inner { padding: 0 1.5rem; }
    .nav__links { display: none; }
    .burger { display: flex; }
    .nav__logo img { height: 46px; }
    .footer__logo { height: 44px; }
    .hero__content { padding: 7.5rem 1.5rem 4rem; }
    .infra-pillars { grid-template-columns: 1fr; }
    .infra-pillars--2col { grid-template-columns: 1fr; }
    .bloc__body--split { grid-template-columns: 1fr; gap: 3rem; }
    .bloc__aside { flex-direction: column; gap: 0; }
    .aside-stat { border-right: none; border-bottom: var(--b); padding: 1.5rem 0; }
    .footer__inner { padding: 0 1.5rem; }
    .btn--gold, .btn--hero { width: 100%; justify-content: center; }
    .bloc__cta .btn--gold { width: auto; }
    .footer__bottom { flex-direction: column; gap: .75rem; text-align: center; }
    .cform__row { grid-template-columns: 1fr; }
    .bloc { padding: 5.5rem 0; }
    .market-cards { flex-direction: column; }
    .ab-transform { gap: 0; }
}

@media (max-width: 480px) {
    h1 { font-size: 2.4rem; }
    h2 { font-size: 2rem; }
    .hero__title-plain { font-size: 2.3rem; }
    .hero__title-gold  { font-size: 1.95rem; }
    .btn--hero { font-size: .6rem; padding: .85rem 1.3rem; }
    .btn--gold { font-size: .6rem; padding: .85rem 1.3rem; }
    .btn--full { width: 100%; font-size: .6rem; padding: .9rem 1.2rem; }
    .cform__row { grid-template-columns: 1fr; }
    .action__grid { gap: 3rem; }
    .contact-box { padding: 2rem 1.5rem; }
}