/* styles.css */
:root{
  --black:#0a0a0a;
  --black-light:#111111;
  --white:#f1f1f1;
  --white-pure:#ffffff;

  --blue:#2950f6;
  --blue-hover:#4a73ff;
  --blue-glow:rgba(41,80,246,0.12);

  --gray:#8e8e8e;
  --gray-dim:#6f6f6f;
  --gray-line:rgba(255,255,255,0.08);

  --sans:'Manrope',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --serif:'Outfit',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;

  --radius:18px;
  --shadow:0 16px 54px rgba(0,0,0,0.45);

  --container:1140px;
}

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

html{
  font-size:16px;
  scroll-behavior:smooth;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

body{
  background:var(--black);
  color:var(--white);
  font-family:var(--sans);
  font-weight:400;
  line-height:1.65;
  overflow-x:hidden;
}

img{
  max-width:100%;
  height:auto;
  display:block;
}

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

strong{
  font-weight:700;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.container.narrow{
  max-width:840px;
}

.section{
  padding:92px 0;
}

.section-divider{
  height:1px;
  background:var(--gray-line);
  margin:0 24px;
}

/* ─────────────────────────────
   NAV
───────────────────────────── */
.nav{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  padding:18px 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  transition:
    transform 0.42s cubic-bezier(0.22,1,0.36,1),
    background 0.28s ease,
    border-color 0.28s ease;
}

.nav.scrolled{
  background:rgba(10,10,10,0.82);
  backdrop-filter:blur(22px);
  -webkit-backdrop-filter:blur(22px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}

.nav.hidden{
  transform:translateY(-110%);
}

.nav-logo img{
  height:36px; /* plus gros que la version de ton dev */
  width:auto;
  opacity:0.95;
}

.nav-links{
  display:flex;
  gap:22px;
  align-items:center;
}

.nav-links a{
  font-size:0.78rem;
  font-weight:600;
  letter-spacing:0.08em;
  text-transform:uppercase;
  opacity:0.52;
  transition:opacity 0.25s ease;
}

.nav-links a:hover{
  opacity:1;
}

.nav-cta{
  opacity:1 !important;
  color:var(--blue) !important;
  font-weight:800 !important;
}

/* ─────────────────────────────
   HERO
───────────────────────────── */
.hero{
  min-height:100svh;
  display:flex;
  align-items:center;
  position:relative;
  overflow:hidden;
  padding:110px 0 54px;
}

.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:44px;
  align-items:center;
}

.hero-services{
  font-size:0.68rem;
  font-weight:600;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--gray);
  margin-bottom:22px;
}

.hero-accroche{
  font-family:var(--serif);
  font-size:clamp(1.75rem, 5.2vw, 3.2rem);
  line-height:1.14;
  font-weight:800;
  margin-bottom:22px;
}

.hero-accroche .line{
  display:block;
}

.hero-accroche .line-accent{
  background:linear-gradient(135deg,#4bb9fa 0%, #2950f6 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  font-style:italic;
  width:fit-content;
}

.hero-qualif{
  margin-bottom:26px;
}

.hero-qualif-strong{
  font-size:0.98rem;
  font-weight:700;
  color:rgba(255,255,255,0.92);
}

.hero-qualif-soft{
  margin-top:6px;
  font-size:0.92rem;
  color:var(--gray);
}

.hero-cta-wrap{
  display:flex;
  flex-direction:column;
  gap:16px;
  max-width:520px;
}

.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  background:var(--blue);
  color:var(--white-pure);
  padding:18px 30px;
  font-size:0.86rem;
  font-weight:800;
  letter-spacing:0.06em;
  text-transform:uppercase;
  font-family:var(--sans);
  border:none;
  cursor:pointer;
  transition:all 0.4s cubic-bezier(0.22,1,0.36,1);
  width:fit-content;
  box-shadow:0 10px 36px rgba(41,80,246,0.18);
}

.btn-main:hover{
  background:var(--blue-hover);
  transform:translateY(-2px);
  box-shadow:0 18px 54px rgba(45,91,255,0.28);
}

.btn-main .arrow{
  transition:transform 0.3s ease;
}

.btn-main:hover .arrow{
  transform:translateX(4px);
}

.hero-signature{
  border-left:1px solid rgba(255,255,255,0.10);
  padding-left:16px;
  color:var(--gray-dim);
  font-style:italic;
  font-size:0.92rem;
  display:grid;
  gap:4px;
}

.hero-right{
  position:relative;
}

.hero-visual{
  position:relative;
  width:100%;
  max-width:520px;
  margin-left:auto;
  border-radius:var(--radius);
  padding:18px;
  background:linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border:1px solid rgba(255,255,255,0.06);
  box-shadow:var(--shadow);
  overflow:hidden;
}

.hero-visual::before{
  content:'';
  position:absolute;
  inset:-30%;
  background:radial-gradient(circle, var(--blue-glow) 0%, transparent 62%);
  pointer-events:none;
}

.hero-mark{
  position:absolute;
  top:16px;
  left:16px;
  height:40px;
  width:auto;
  opacity:0.20;
  filter:saturate(1.2);
}

.hero-sign{
  width:100%;
  height:auto;
  opacity:0.88;
  transform:translateY(2px);
  filter:contrast(1.02);
}

.hero-fade{
  position:absolute;
  inset:auto 0 0 0;
  height:46vh;
  background:linear-gradient(to bottom, rgba(10,10,10,0.00), var(--black) 70%);
  pointer-events:none;
}

/* ─────────────────────────────
   TITLES + REVEAL
───────────────────────────── */
.section-title{
  font-family:var(--serif);
  font-size:clamp(2rem, 5vw, 3.2rem);
  font-weight:800;
  line-height:1.12;
  margin-bottom:30px;
}

.section-title em{
  font-style:italic;
  background:linear-gradient(135deg,#4bb9fa 0%, #2950f6 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.title-inline{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  flex-wrap:wrap;
}

.section-title-logo{
  height:1.05em;
  width:auto;
  opacity:0.92;
  transform:translateY(0.08em);
}

.rv{
  opacity:0;
  transform:translateY(34px);
  transition:
    opacity 0.65s cubic-bezier(0.22,1,0.36,1),
    transform 0.65s cubic-bezier(0.22,1,0.36,1);
}

.rv.is-v{
  opacity:1;
  transform:translateY(0);
}

/* ─────────────────────────────
   SECTION CTA
───────────────────────────── */
.section-cta-wrap{
  margin-top:28px;
}

.section-cta{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:15px 26px;
  font-size:0.84rem;
  font-weight:800;
  letter-spacing:0.06em;
  text-transform:uppercase;
  font-family:var(--sans);
  color:var(--white-pure);
  background:var(--blue);
  border:none;
  transition:all 0.4s cubic-bezier(0.22,1,0.36,1);
  width:fit-content;
}

.section-cta:hover{
  background:var(--blue-hover);
  transform:translateY(-2px);
  box-shadow:0 14px 44px rgba(41,80,246,0.24);
}

.section-cta span{
  transition:transform 0.3s ease;
}

.section-cta:hover span{
  transform:translateX(5px);
}

.section-cta-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,0.16);
}

.section-cta-outline:hover{
  background:var(--blue);
  border-color:var(--blue);
}

.section-cta-sub{
  margin-top:10px;
  font-size:0.80rem;
  color:var(--gray-dim);
  font-style:italic;
}

/* ─────────────────────────────
   2) INTERLOCUTEURS
───────────────────────────── */
.idee-intro{
  font-family:var(--serif);
  font-size:clamp(1.35rem, 3.4vw, 1.85rem);
  font-weight:700;
  line-height:1.25;
  margin-bottom:18px;
}

.idee-line{
  display:block;
  opacity:0.92;
}

.idee-accent{
  margin-top:6px;
  opacity:1;
  background:linear-gradient(135deg,#4bb9fa 0%, #2950f6 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  font-style:italic;
  width:fit-content;
}

.idee-profiles{
  margin:22px 0 22px;
  padding-left:0;
  list-style:none;
}

.idee-profiles li{
  font-size:0.98rem;
  color:rgba(255,255,255,0.92);
  line-height:1.7;
  padding:10px 0 10px 20px;
  position:relative;
}

.idee-profiles li::before{
  content:'';
  position:absolute;
  left:0;
  top:18px;
  width:6px;
  height:6px;
  background:var(--blue);
}

.idee-conclusion{
  font-size:1.02rem;
  color:var(--gray);
  line-height:1.75;
}

.intervention{
  margin-top:36px;
  padding:22px 22px;
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.07);
  border-radius:var(--radius);
}

.intervention-text{
  color:var(--gray);
  font-size:0.98rem;
  line-height:1.7;
}

/* ─────────────────────────────
   3) EXPERTISES (ANYPROD, C’EST)
───────────────────────────── */
.expertises-grid{
  display:grid;
  grid-template-columns:1fr;
}

.exp-item{
  padding:34px 0;
  border-bottom:1px solid var(--gray-line);
  transition:background 0.3s ease;
}

.exp-item:first-child{
  border-top:1px solid var(--gray-line);
}

.exp-name{
  font-family:var(--serif);
  font-size:clamp(1.35rem, 3.2vw, 2.05rem);
  font-weight:700;
  margin-bottom:12px;
  transition:color 0.25s ease;
}

.exp-desc{
  font-size:0.95rem;
  color:var(--gray-dim);
  line-height:1.7;
  max-width:560px;
  transition:color 0.25s ease;
}

.exp-item:hover .exp-name{
  color:var(--blue);
}

.exp-item:hover .exp-desc{
  color:var(--gray);
}

/* ─────────────────────────────
   4) GARANTIES
───────────────────────────── */
.pourquoi{
  background:var(--black-light);
}

.pourquoi-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
  margin-bottom:40px;
}

.pq-name{
  font-size:1rem;
  font-weight:800;
  letter-spacing:0.02em;
  margin-bottom:10px;
}

.pq-text{
  font-size:0.92rem;
  color:var(--gray);
  line-height:1.7;
}

.pourquoi-footer{
  font-family:var(--serif);
  font-size:clamp(1.05rem, 2.4vw, 1.35rem);
  font-style:italic;
  font-weight:600;
  color:var(--gray-dim);
  border-top:1px solid var(--gray-line);
  padding-top:28px;
  max-width:720px;
}

.footer-accent{
  background:linear-gradient(135deg,#4bb9fa 0%, #2950f6 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

/* ─────────────────────────────
   5) RÉFÉRENCES
───────────────────────────── */
.refs-text{
  font-size:1rem;
  color:var(--gray);
  line-height:1.75;
}

/* ─────────────────────────────
   6) PROCESS
───────────────────────────── */
.process-steps{
  display:grid;
  grid-template-columns:1fr;
}

.proc{
  padding:34px 0;
  border-bottom:1px solid var(--gray-line);
  display:flex;
  gap:18px;
  align-items:flex-start;
}

.proc:first-child{
  border-top:1px solid var(--gray-line);
}

.proc-num{
  font-family:var(--serif);
  font-size:2.8rem;
  line-height:1;
  color:var(--blue);
  opacity:0.30;
  flex-shrink:0;
  width:52px;
}

.proc-text{
  font-size:1rem;
  line-height:1.55;
  padding-top:8px;
}

.process-signature{
  margin-top:28px;
  font-size:0.88rem;
  color:var(--gray-dim);
  font-style:italic;
}

/* ─────────────────────────────
   7) FINAL CTA
───────────────────────────── */
.cta-final{
  padding:112px 0;
  text-align:center;
  position:relative;
}

.cta-final::before{
  content:'';
  position:absolute;
  bottom:0;
  left:50%;
  transform:translateX(-50%);
  width:86vw;
  height:52vh;
  background:radial-gradient(ellipse, var(--blue-glow) 0%, transparent 70%);
  pointer-events:none;
}

.cta-questions{
  font-family:var(--serif);
  font-size:clamp(1.75rem, 5vw, 3.1rem);
  font-weight:800;
  line-height:1.23;
  margin-bottom:42px;
}

.cta-questions .q-line{
  display:block;
  opacity:0.4;
  transition:opacity 0.45s ease;
}

.cta-questions .q-line:last-child{
  opacity:1;
  background:linear-gradient(135deg,#4bb9fa 0%, #2950f6 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  font-style:italic;
}

.cta-btn-wrap{
  margin-bottom:14px;
}

.cta-small{
  font-size:0.86rem;
  color:var(--gray-dim);
  font-style:italic;
  margin-bottom:34px;
}

.cta-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:center;
}

.cta-email{
  font-size:1.05rem;
  font-weight:700;
  color:rgba(255,255,255,0.92);
  border-bottom:1px solid var(--gray-line);
  padding-bottom:2px;
  transition:all 0.25s ease;
}

.cta-email:hover{
  color:var(--blue);
  border-bottom-color:var(--blue);
}

.cta-phone{
  font-size:0.95rem;
  color:var(--gray-dim);
  transition:color 0.25s ease;
}

.cta-phone:hover{
  color:rgba(255,255,255,0.92);
}

/* ─────────────────────────────
   FOOTER
───────────────────────────── */
.footer{
  padding:28px 0;
  border-top:1px solid var(--gray-line);
}

.footer-inner{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:center;
  text-align:center;
}

.footer-brand img{
  height:26px;
  width:auto;
  opacity:0.75;
}

.footer-copy{
  font-size:0.76rem;
  color:var(--gray-dim);
  opacity:0.55;
}

/* ─────────────────────────────
   RESPONSIVE
───────────────────────────── */
@media (min-width:768px){
  .container{ padding:0 48px; }
  .nav{ padding:22px 48px; }
  .section{ padding:132px 0; }
  .hero{ padding:0; }
  .hero-grid{
    grid-template-columns:1.05fr 0.95fr;
    gap:56px;
    padding-top:84px;
  }
  .hero-cta-wrap{ gap:18px; }
  .hero-visual{ padding:22px; }
  .expertises-grid{
    grid-template-columns:1fr 1fr;
    gap:0 56px;
  }
  .exp-item{
    padding:44px 0;
  }
  .pourquoi-grid{
    grid-template-columns:1fr 1fr;
    gap:44px 56px;
  }
  .process-steps{
    grid-template-columns:1fr 1fr;
    gap:0 56px;
  }
  .cta-final{ padding:150px 0; }
  .footer-inner{
    flex-direction:row;
    justify-content:space-between;
    text-align:left;
  }
}

@media (min-width:1024px){
  .container{ padding:0 64px; }
  .nav{ padding:26px 64px; }
}

/* ─────────────────────────────
   MOBILE NAV SAFETY
───────────────────────────── */
@media (max-width:520px){
  .nav-links{
    gap:14px;
  }
  .nav-links a{
    font-size:0.74rem;
  }
  .nav-links a:not(.nav-cta){
    display:none; /* évite un mur et les chevauchements en mobile */
  }
  .btn-main{
    width:100%;
  }
  .section-cta{
    width:100%;
    justify-content:center;
  }
}

/* ─────────────────────────────
   GRAIN
───────────────────────────── */
body::after{
  content:'';
  position:fixed;
  inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-repeat:repeat;
  background-size:256px;
  pointer-events:none;
  z-index:9999;
  opacity:0.42;
}