:root{
    --bg:#FFFFFF;
    --bg-elevated:#F5F4F1;
    --text:#14161A;
    --muted:#6B7078;
    --accent-1:#7B61FF;
    --accent-2:#00A896;
    --border:#E4E2DD;
    --max-w:1200px;
  }

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

  html{scroll-behavior:smooth;}

  body{
    background:var(--bg);
    color:var(--text);
    font-family:'Fira Sans',Arial,sans-serif;
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3, .display{
    font-family:Arial,sans-serif;
    font-weight:900;
    letter-spacing:-0.02em;
    line-height:0.95;
  }

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

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

  .wrap{
    max-width:var(--max-w);
    margin:0 auto;
    padding:0 32px;
  }

  /* ---------- NAV ---------- */
  header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:100;
    background:rgba(255,255,255,0.75);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
  }
  nav{
    max-width:var(--max-w);
    margin:0 auto;
    padding:20px 32px;
    display:flex;
    justify-content:space-between;
    align-items:center;
  }
  .logo{
    font-family:Arial,sans-serif;
    font-weight:900;
    font-size:1.1rem;
    letter-spacing:-0.01em;
  }
  .nav-links{
    display:flex;
    gap:32px;
    font-size:0.95rem;
    font-weight:500;
  }
  .nav-links a{
    color:var(--muted);
    transition:color 0.2s;
  }
  .nav-links a:hover{color:var(--text);}

  /* ---------- HERO ---------- */
  .hero{
    position:relative;
    min-height:100vh;
    display:flex;
    flex-direction:column;
    justify-content:center;
    padding-top:80px;
    overflow:hidden;
  }

  .hero-glow{
    position:absolute;
    top:50%;left:50%;
    width:900px;height:900px;
    transform:translate(-50%,-50%);
    background:
      radial-gradient(circle at 30% 30%, var(--accent-1) 0%, transparent 45%),
      radial-gradient(circle at 70% 70%, var(--accent-2) 0%, transparent 45%);
    opacity:0;
    filter:blur(80px);
    animation: heroFadeIn 2.5s ease-out forwards;
    pointer-events:none;
  }

  @keyframes heroFadeIn{
    0%{opacity:0; transform:translate(-50%,-50%) scale(0.8);}
    100%{opacity:0.35; transform:translate(-50%,-50%) scale(1);}
  }

  /* Dégradé de fond du hero (bleu/violet vers vert, puis blanc) */
  .hero-video-overlay{
    position:absolute;
    inset:0;
    z-index:0;
    background:linear-gradient(180deg,
      rgba(123,97,255,0.55) 0%,
      rgba(0,168,150,0.4) 45%,
      #FFFFFF 100%);
  }

  .hero-content{
    position:relative;
    z-index:2;
  }

  .hero-eyebrow{
    color:rgba(20,22,26,0.6);
    font-size:0.95rem;
    margin-bottom:20px;
  }

  .hero h1{
    font-size:clamp(2rem, 5vw, 4rem);
    max-width:900px;
    color:#14161A;
  }

  .hero-sub{
    margin-top:28px;
    max-width:820px;
    color:rgba(20,22,26,0.7);
    font-size:1.15rem;
  }

  /* Sur petit écran, le texte revient à la ligne naturellement (pas de coupure forcée) */
  @media (max-width:900px){
    .desktop-br{display:none;}
  }

  .hero-cta{
    margin-top:40px;
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:14px 28px;
    border:1px solid rgba(20,22,26,0.25);
    border-radius:100px;
    font-weight:600;
    font-size:0.95rem;
    width:fit-content;
    color:#14161A;
    transition:border-color 0.2s, background 0.2s;
  }
  .hero-cta:hover{
    border-color:var(--accent-2);
    background:rgba(255,255,255,0.5);
  }

  /* ---------- SECTION LABELS ---------- */
  .section{
    padding:120px 0;
    border-top:1px solid var(--border);
  }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    margin-bottom:56px;
    gap:24px;
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:clamp(2rem, 4vw, 2.8rem);
  }
  .section-head p{
    color:var(--muted);
    max-width:360px;
    font-size:1rem;
  }

  /* ---------- ÉTAPES DE CRÉATION ---------- */
  .process-section{
    border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
  }

  .process-steps{
    display:flex;
    padding:0 40px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .process-steps::-webkit-scrollbar{
    display:none;
  }

  .process-step{
    flex:1 1 0;
    min-width:180px;
    padding:0 28px 8px 0;
    border-right:1px solid var(--border);
    margin-right:28px;
  }
  .process-step:last-child{
    border-right:none;
    margin-right:0;
  }

  .process-number{
    display:block;
    font-family:Arial,sans-serif;
    font-weight:700;
    font-size:0.85rem;
    color:var(--accent-2);
    margin-bottom:16px;
  }

  .process-title{
    font-family:Arial,sans-serif;
    font-weight:800;
    font-size:1.1rem;
    text-transform:uppercase;
    letter-spacing:0.02em;
    color:var(--text);
  }

  .process-desc{
    color:var(--muted);
    font-size:0.9rem;
    margin-top:10px;
  }

  @media (max-width:800px){
    .process-steps{padding:0 20px;}
    .process-step{min-width:160px;}
  }

  /* ---------- PROJECTS: BANDEAUX HORIZONTAUX PAR CATÉGORIE ---------- */
  .project-category{
    padding:64px 0;
    border-bottom:1px solid var(--border);
  }

  .category-head{
    display:flex;
    flex-direction:column;
    gap:8px;
    margin-bottom:32px;
  }
  .category-head h2{
    font-size:clamp(1.8rem, 3.5vw, 2.6rem);
  }
  .category-head p{
    color:var(--muted);
    font-size:1rem;
  }

  /* Bandeau défilant à l'horizontale (scroll natif, glisser au trackpad/tactile) */
  .h-scroll{
    display:flex;
    gap:24px;
    overflow-x:auto;
    padding:0 40px 12px;
    scroll-padding-left:40px;
    scroll-snap-type:x proximity;
    scrollbar-width:none;
  }
  .h-scroll::-webkit-scrollbar{
    display:none;
  }

  /* Curseur / barre de progression du défilement horizontal */
  .h-scroll-track{
    position:relative;
    height:4px;
    background:var(--border);
    margin:8px 0 48px;
    border-radius:4px;
    cursor:pointer;
    /* zone de clic un peu plus généreuse que la barre visible */
    padding:10px 0;
    background-clip:content-box;
  }

  .h-scroll-thumb{
    position:absolute;
    top:10px;
    left:0;
    height:4px;
    width:20%;
    background:var(--muted);
    border-radius:4px;
    transition:left 0.1s linear;
    pointer-events:none;
  }

  .h-scroll-thumb.dragging{
    transition:none;
  }

  .project-card{
    flex:0 0 340px;
    scroll-snap-align:start;
    cursor:pointer;
  }

  .project-thumb{
    position:relative;
    width:100%;
    aspect-ratio:4/3;
    border-radius:10px;
    overflow:hidden;
    background:var(--bg-elevated);
  }

  .project-cover{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform 0.5s ease;
  }

  .project-card:hover .project-cover{
    transform:scale(1.06);
  }

  .project-cover-video{
    opacity:0;
    transition:opacity 0.4s ease;
  }

  .project-card:hover .project-cover-video{
    opacity:1;
  }

  .project-card-body{
    padding-top:16px;
  }

  .project-type{
    display:inline-block;
    color:var(--accent-2);
    font-size:0.75rem;
    font-weight:600;
    text-transform:uppercase;
    letter-spacing:0.04em;
    margin-bottom:6px;
  }

  .project-title{
    font-family:Arial,sans-serif;
    font-weight:800;
    font-size:1.1rem;
    letter-spacing:-0.01em;
    color:var(--text);
  }

  .project-year{
    color:var(--muted);
    font-size:0.85rem;
    margin-top:4px;
  }

  @media (max-width:700px){
    .h-scroll{padding:0 20px 12px; scroll-padding-left:20px;}
    .project-card{flex-basis:260px;}
  }

  /* ---------- PARTNERS (défilement horizontal) ---------- */
  .partners-marquee{
    position:relative;
    overflow:hidden;
    width:100%;
    -webkit-mask-image:linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
    mask-image:linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
  }

  .partners-track{
    display:flex;
    align-items:center;
    gap:80px;
    width:max-content;
    animation: partnersScroll 28s linear infinite;
  }

  .partners-marquee:hover .partners-track{
    animation-play-state:paused;
  }

  @keyframes partnersScroll{
    0%{transform:translateX(0);}
    100%{transform:translateX(-50%);}
  }

  .partner-item{
    display:flex;
    align-items:center;
    justify-content:center;
    height:56px;
    flex-shrink:0;
  }

  .partner-item img{
    max-height:44px;
    max-width:160px;
    object-fit:contain;
    filter:grayscale(1);
    opacity:0.55;
    transition:filter 0.3s, opacity 0.3s;
  }

  .partner-item:hover img{
    filter:grayscale(0);
    opacity:1;
  }

  .partner-item .partner-name{
    color:var(--muted);
    font-weight:600;
    font-size:1.1rem;
    white-space:nowrap;
    transition:color 0.2s;
  }

  .partner-item:hover .partner-name{
    color:var(--text);
  }

  @media (prefers-reduced-motion: reduce){
    .partners-track{animation:none;}
  }

  /* ---------- ABOUT ---------- */
  .about-grid{
    display:grid;
    grid-template-columns:320px 1fr;
    gap:56px;
    align-items:start;
  }

  .about-photo{
    width:100%;
    aspect-ratio:4/5;
    object-fit:cover;
    border-radius:14px;
  }

  .about-text p{
    font-size:1.15rem;
    color:var(--muted);
    max-width:560px;
  }
  .about-text p + p{margin-top:20px;}

  /* ---------- CONTACT ---------- */
  .contact{
    text-align:left;
  }
  .contact h2{
    font-size:clamp(2.2rem, 6vw, 4rem);
    max-width:700px;
  }
  .contact-links{
    margin-top:40px;
    display:flex;
    gap:32px;
    flex-wrap:wrap;
  }
  .contact-links a{
    font-size:1.1rem;
    font-weight:600;
    padding-bottom:4px;
    border-bottom:1px solid var(--border);
    transition:border-color 0.2s, color 0.2s;
  }
  .contact-links a:hover{
    border-color:var(--accent-2);
    color:var(--accent-2);
  }

  footer{
    padding:32px;
    text-align:center;
    color:var(--muted);
    font-size:0.85rem;
    border-top:1px solid var(--border);
  }

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:800px){
    nav{padding:16px 20px;}
    .nav-links{display:none;}
    .wrap{padding:0 20px;}
    .section{padding:80px 0;}
    .about-grid{grid-template-columns:1fr; gap:32px;}
    .about-photo{max-width:280px;}
  }

  @media (prefers-reduced-motion: reduce){
    .hero-glow{animation:none; opacity:0.25;}
    .project-cover{transition:none;}
    .partners-track{animation:none;}
  }

/* ==========================================================
   PAGE DE DÉTAIL PROJET (project.html)
   ========================================================== */
.project-detail-header{
  padding:160px 0 40px;
  max-width:800px;
}

.project-detail-header h1{
  font-size:clamp(2.2rem, 5vw, 3.4rem);
  margin-top:16px;
}

.project-detail-desc{
  color:var(--muted);
  font-size:1.15rem;
  margin-top:24px;
  max-width:640px;
}

.project-meta-grid{
  display:grid;
  grid-template-columns:repeat(5, 1fr);
  gap:24px;
  padding:32px 0 56px;
  border-bottom:1px solid var(--border);
  margin-bottom:56px;
}

.project-meta-item h5{
  font-size:0.75rem;
  text-transform:uppercase;
  letter-spacing:0.06em;
  color:var(--accent-2);
  font-weight:700;
  margin-bottom:8px;
}

.project-meta-item p{
  font-size:0.95rem;
  color:var(--text);
}

.project-media{
  display:flex;
  flex-direction:column;
  gap:24px;
  padding-bottom:100px;
}

.pd-photo-big{
  width:100%;
  border-radius:12px;
  object-fit:cover;
}

.pd-video-wrap{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  border-radius:12px;
  overflow:hidden;
  background:var(--bg-elevated);
}

.pd-video-wrap iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:none;
}

.pd-photos-duo{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}

.pd-photos-duo img{
  width:100%;
  height:100%;
  aspect-ratio:1/1;
  object-fit:cover;
  border-radius:12px;
}

.project-back{
  margin-bottom:40px;
  display:inline-block;
}

@media (max-width:800px){
  .project-detail-header{padding:120px 0 32px;}
  .project-meta-grid{grid-template-columns:repeat(2, 1fr); row-gap:28px;}
  .pd-photos-duo{grid-template-columns:1fr;}
}