:root{
    color-scheme:light;
    --black:#0d0d0c;
    --charcoal:#232220;
    --white:#ffffff;
    --off:#f6f5f3;
    --grey:#8a8782;
    --line:rgba(13,13,12,0.12);
    --ease:cubic-bezier(.19,1,.22,1);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:'IBM Plex Sans',sans-serif;
    color:var(--black);
    background:var(--white);
    font-weight:300;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  .eyebrow{
    font-size:.72rem;
    letter-spacing:.28em;
    text-transform:uppercase;
    color:var(--grey);
    display:block;
    margin-bottom:18px;
  }
  h1,h2,h3{font-weight:400;letter-spacing:.02em;}

  /* ---------- Header ---------- */
  header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:28px 5vw;
    mix-blend-mode:difference;
  }
  .logo{
    font-family:'Newsreader',serif;
    color:var(--white);
    font-size:1.35rem;
    letter-spacing:.05em;
  }
  .logo span.thin{font-weight:300;}
  .logo span.bold{font-weight:600;letter-spacing:.32em;margin-left:.4em;}
  .menu-btn{
    width:38px;height:16px;
    position:relative;
    cursor:pointer;
    background:none;border:none;
  }
  .menu-btn span{
    position:absolute;left:0;right:0;
    height:1px;background:var(--white);
    transition:transform .4s var(--ease), opacity .3s;
  }
  .menu-btn span:nth-child(1){top:0;}
  .menu-btn span:nth-child(2){bottom:0;}
  .menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-btn.open span:nth-child(2){transform:translateY(-8px) rotate(-45deg);}

  /* ---------- Fullscreen nav overlay ---------- */
  .overlay{
    position:fixed;inset:0;
    background:var(--charcoal);
    z-index:50;
    display:flex;
    align-items:center;
    padding:0 8vw;
    transform:translateY(-100%);
    transition:transform .7s var(--ease);
  }
  .overlay.open{transform:translateY(0);}
  .overlay nav ul{list-style:none;}
  .overlay nav li{
    overflow:hidden;
  }
  .overlay nav a{
    display:inline-block;
    font-family:'Newsreader',serif;
    font-weight:300;
    font-size:clamp(2.2rem,6vw,4.2rem);
    color:var(--off);
    padding:10px 0;
    letter-spacing:.03em;
    transform:translateY(110%);
    transition:transform .7s var(--ease), color .3s;
  }
  .overlay.open nav a{transform:translateY(0);}
  .overlay nav a:hover{color:var(--grey);}
  .overlay nav li:nth-child(1) a{transition-delay:.05s;}
  .overlay nav li:nth-child(2) a{transition-delay:.1s;}
  .overlay nav li:nth-child(3) a{transition-delay:.15s;}
  .overlay nav li:nth-child(4) a{transition-delay:.2s;}
  .overlay nav li:nth-child(5) a{transition-delay:.25s;}
  .overlay nav li:nth-child(6) a{transition-delay:.3s;}
  .overlay .overlay-side{
    position:absolute;
    right:8vw;bottom:60px;
    color:var(--grey);
    font-size:.75rem;
    letter-spacing:.15em;
    text-transform:uppercase;
  }
  .overlay .overlay-side a{display:block;margin-top:8px;font-size:.8rem;color:var(--off);letter-spacing:.05em;}

  /* ---------- Hero slider ---------- */
  .hero{
    position:relative;
    height:100vh;
    overflow:hidden;
    background:var(--black);
  }
  .hero .slide{
    position:absolute;inset:0;
    opacity:0;
    transition:opacity 1.6s ease;
  }
  .hero .slide.active{opacity:1;}
  .hero .slide img{
    width:100%;height:100%;object-fit:cover;
    transform:scale(1.08);
    animation:kenburns 9s ease-out forwards;
  }
  @keyframes kenburns{from{transform:scale(1.08);}to{transform:scale(1);}}
  .hero .slide video{
    width:100%;height:100%;object-fit:cover;
  }
  .hero::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(0,0,0,.35) 0%,rgba(0,0,0,.05) 35%,rgba(0,0,0,.05) 60%,rgba(0,0,0,.55) 100%);
    pointer-events:none;
  }
  .hero-caption{
    position:absolute;
    left:5vw;right:5vw;bottom:90px;
    z-index:5;
    color:var(--white);
  }
  .hero-caption .eyebrow{color:rgba(255,255,255,.7);}
  .hero-caption h1{
    font-family:'Newsreader',serif;
    font-weight:300;
    font-size:clamp(1rem,2.6vw,2rem);
    line-height:1.15;
    white-space:nowrap;
  }
  .hero-nav{
    position:absolute;
    bottom:40px;right:5vw;
    z-index:5;
    display:flex;
    gap:18px;
    align-items:center;
  }
  .hero-nav button{
    background:none;border:1px solid rgba(255,255,255,.5);
    color:var(--white);
    width:42px;height:42px;
    border-radius:50%;
    cursor:pointer;
    font-size:1rem;
    transition:background .3s, border-color .3s;
  }
  .hero-nav button:hover{background:rgba(255,255,255,.12);border-color:#fff;}
  .hero-progress{
    position:absolute;
    left:0;right:0;bottom:0;
    height:2px;
    background:rgba(255,255,255,.18);
    z-index:5;
  }
  .hero-progress i{
    display:block;height:100%;width:0%;
    background:var(--white);
  }
  .scroll-cue{
    position:absolute;
    left:5vw;top:50%;
    transform:translateY(-50%) rotate(90deg);
    transform-origin:left center;
    color:rgba(255,255,255,.6);
    font-size:.7rem;
    letter-spacing:.3em;
    text-transform:uppercase;
    z-index:5;
  }

  /* ---------- Sections ---------- */
  section{
    padding:140px 5vw;
    position:relative;
  }
  .section-head{
    max-width:640px;
    margin-bottom:70px;
  }
  .section-head h2{
    font-family:'Newsreader',serif;
    font-size:clamp(2rem,3.6vw,3rem);
    font-weight:300;
  }
  .section-head p{
    margin-top:20px;
    color:var(--grey);
    font-weight:300;
    line-height:1.7;
    font-size:.98rem;
  }
  .reveal{
    opacity:0;
    transform:translateY(36px);
    transition:opacity .9s var(--ease), transform .9s var(--ease);
  }
  .reveal.in{opacity:1;transform:translateY(0);}

  /* Onglets de catégories projets */
  .project-tabs{
    display:flex;
    flex-wrap:wrap;
    gap:10px 34px;
    margin:-30px 0 50px;
    padding-bottom:22px;
    border-bottom:1px solid var(--line);
  }
  .project-tab{
    background:none;
    border:none;
    cursor:pointer;
    font-family:'IBM Plex Sans',sans-serif;
    font-size:.75rem;
    font-weight:300;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:var(--grey);
    padding:0 0 4px;
    position:relative;
    transition:color .3s;
  }
  .project-tab::after{
    content:"";
    position:absolute;left:0;right:0;bottom:0;
    height:1px;
    background:var(--black);
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .35s var(--ease);
  }
  .project-tab:hover{color:var(--black);}
  .project-tab.active{color:var(--black);}
  .project-tab.active::after{transform:scaleX(1);}

  /* Fil d'ariane (quand on est entré dans une série) */
  .project-breadcrumb{
    display:flex;
    align-items:center;
    gap:10px;
    margin:-30px 0 40px;
    font-size:.78rem;
    letter-spacing:.08em;
    text-transform:uppercase;
    color:var(--grey);
  }
  .breadcrumb-link{
    background:none;border:none;cursor:pointer;
    font-family:'IBM Plex Sans',sans-serif;
    font-size:inherit;letter-spacing:inherit;text-transform:inherit;
    color:var(--grey);
    transition:color .3s;
  }
  .breadcrumb-link:hover{color:var(--black);}
  .breadcrumb-current{color:var(--black);}
  .breadcrumb-agency{color:var(--grey);}

  /* Projets grid */
  .grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:2px;
  }
  .project-card{
    position:relative;
    aspect-ratio:4/5;
    overflow:hidden;
    background:var(--black);
    cursor:pointer;
  }
  .project-card:focus-visible{outline:2px solid var(--black);outline-offset:-2px;}
  .project-card img,
  .project-card video{
    width:100%;height:100%;object-fit:cover;
    transition:transform 1.1s var(--ease), filter .6s;
    filter:grayscale(100%);
  }
  .project-card:hover img,
  .project-card:hover video{transform:scale(1.07);filter:grayscale(0%);}
  /* Equivalent tactile du hover : la vignette repasse en couleur des qu'elle
     occupe tout l'ecran pendant le scroll (cf. gridActiveObserver dans script.js).
     Gate sur la largeur d'ecran (meme seuil que le passage a 1 colonne plus bas,
     @media(max-width:560px)) plutot que sur une detection tactile/hover : cette
     derniere s'est averee peu fiable selon les navigateurs (ex. Samsung Internet),
     et sans elle, une rangee desktop entiere (plusieurs cartes a la fois) devient
     active des qu'elle est visible, ecrasant le hover normal. */
  @media(max-width:560px){
    .project-card.is-active img,
    .project-card.is-active video{transform:scale(1.07);filter:grayscale(0%);}
  }
  .project-card-badge{
    position:absolute;top:16px;right:16px;
    padding:6px 12px;
    background:rgba(13,13,12,.55);
    backdrop-filter:blur(2px);
    color:var(--white);
    font-size:.68rem;
    letter-spacing:.1em;
    text-transform:uppercase;
  }
  .projects-empty{color:var(--grey);font-size:.9rem;grid-column:1/-1;padding:20px 0;}

  /* Visionneuse plein écran */
  .lightbox{
    position:fixed;inset:0;
    z-index:80;
    display:none;
    background:var(--white);
  }
  .lightbox.open{display:block;}
  .lightbox-track{
    height:100%;
    overflow-y:auto;
    scrollbar-width:none;
    scroll-behavior:smooth;
    scroll-snap-type:y mandatory;
  }
  .lightbox-track::-webkit-scrollbar{display:none;}
  .lightbox-item{
    height:100%;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:1.5vh 6vw;
    scroll-snap-align:start;
    scroll-snap-stop:always;
  }
  .lightbox-item img,
  .lightbox-item video{
    max-width:100%;max-height:85vh;
    object-fit:contain;
  }
  .lightbox-overlay-caption{
    position:fixed;
    left:50%;bottom:5vh;
    transform:translateX(-50%);
    z-index:81;
    max-width:80vw;
    color:var(--black);
    font-family:'Newsreader',serif;
    font-weight:300;
    font-size:clamp(1.1rem,2vw,1.5rem);
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    pointer-events:none;
  }
  .lightbox-close{
    position:fixed;top:24px;right:5vw;
    z-index:81;
    background:none;border:none;
    color:var(--black);
    font-size:2rem;
    line-height:1;
    cursor:pointer;
  }
  .project-info{
    position:absolute;left:0;right:0;bottom:0;
    padding:24px;
    color:var(--white);
    background:linear-gradient(0deg,rgba(0,0,0,.75),transparent 70%);
  }
  .project-info .eyebrow{color:rgba(255,255,255,.65);margin-bottom:6px;}
  .project-info h3{font-family:'Newsreader',serif;font-weight:400;font-size:1.3rem;}

  /* Films */
  .films-row{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:2px;
  }
  .film-card{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
    cursor:pointer;
  }
  .film-card img{width:100%;height:100%;object-fit:cover;filter:brightness(.75);transition:transform 1s var(--ease), filter .5s;}
  .film-card:hover img{transform:scale(1.05);filter:brightness(.55);}
  .play-btn{
    position:absolute;top:50%;left:50%;
    transform:translate(-50%,-50%);
    width:64px;height:64px;
    border:1px solid rgba(255,255,255,.7);
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
  }
  .play-btn::before{
    content:"";
    border-left:10px solid #fff;
    border-top:7px solid transparent;
    border-bottom:7px solid transparent;
    margin-left:4px;
  }
  .film-title{
    position:absolute;left:24px;bottom:22px;
    color:var(--white);
    font-family:'Newsreader',serif;
    font-size:1.1rem;
  }

  /* VR */
  .vr-section{
    background:var(--black);
    color:var(--off);
  }
  .vr-flex{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:70px;
    align-items:center;
  }
  .vr-flex img{width:100%;aspect-ratio:1/1;object-fit:cover;filter:grayscale(20%);}
  .vr-flex .section-head p{color:rgba(255,255,255,.6);}
  .btn{
    display:inline-block;
    margin-top:28px;
    padding:16px 34px;
    border:1px solid currentColor;
    font-size:.75rem;
    letter-spacing:.2em;
    text-transform:uppercase;
    transition:background .35s, color .35s;
  }
  .vr-flex .btn:hover{background:var(--off);color:var(--black);}

  /* Studio */
  .studio-flex{
    display:grid;
    grid-template-columns:1fr;
    gap:80px;
  }
  .studio-flex .section-head{margin-bottom:0;}
  .studio-stats{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:36px;
    margin-top:50px;
  }
  .studio-stats div h3{font-family:'Newsreader',serif;font-size:2.4rem;font-weight:300;}
  .studio-stats div span{font-size:.75rem;letter-spacing:.1em;color:var(--grey);text-transform:uppercase;}

  /* Jobs */
  .job-list{max-width:820px;}
  .job-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:30px 0;
    border-top:1px solid var(--line);
  }
  .job-row:last-child{border-bottom:1px solid var(--line);}
  .job-row h3{font-family:'Newsreader',serif;font-weight:400;font-size:1.3rem;}
  .job-row span{color:var(--grey);font-size:.85rem;}
  .job-apply{
    font-size:.72rem;letter-spacing:.15em;text-transform:uppercase;
    border-bottom:1px solid var(--black);
    padding-bottom:2px;
  }

  /* Contact */
  .contact-section{
    background:var(--off);
  }
  .contact-flex{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:80px;
  }
  .contact-info p{margin-bottom:26px;line-height:1.6;}
  .contact-info .label{display:block;font-size:.72rem;letter-spacing:.2em;color:var(--grey);text-transform:uppercase;margin-bottom:6px;}
  form{display:flex;flex-direction:column;gap:22px;}
  form input, form textarea{
    background:transparent;
    border:none;
    border-bottom:1px solid var(--line);
    padding:12px 0;
    font-family:'IBM Plex Sans',sans-serif;
    font-size:1rem;
    font-weight:300;
    color:var(--black);
  }
  form input:focus, form textarea:focus{outline:none;border-color:var(--black);}
  form button{
    align-self:flex-start;
    margin-top:10px;
    background:var(--black);
    color:var(--white);
    border:none;
    padding:16px 40px;
    font-size:.75rem;
    letter-spacing:.2em;
    text-transform:uppercase;
    cursor:pointer;
    transition:opacity .3s;
  }
  form button:hover{opacity:.8;}
  form button:disabled{opacity:.5;cursor:default;}
  .form-status{font-size:.85rem;min-height:1.2em;}
  .form-status.success{color:#2f7a3d;}
  .form-status.error{color:#b3372c;}

  /* Footer */
  footer{
    padding:50px 5vw;
    display:flex;
    justify-content:space-between;
    align-items:center;
    border-top:1px solid var(--line);
    font-size:.75rem;
    letter-spacing:.08em;
    color:var(--grey);
    text-transform:uppercase;
  }
  footer .socials{display:flex;gap:24px;}
  footer .socials a:hover{color:var(--black);}

  @media(max-width:900px){
    .grid{grid-template-columns:repeat(2,1fr);}
    .films-row, .vr-flex, .studio-flex, .contact-flex{grid-template-columns:1fr;}
    section{padding:100px 6vw;}
    /* En dessous de 900px, la citation ne tient plus sur une ligne sans devenir
       illisible : on repasse au retour a la ligne normal plutot que de la laisser
       deborder hors du cadre du hero (overflow:hidden la couperait sinon). */
    .hero-caption h1{
      white-space:normal;
      font-size:clamp(1.5rem,4.2vw,2.1rem);
    }
  }
  @media(max-width:560px){
    .grid{grid-template-columns:1fr;}
    footer{flex-direction:column;gap:16px;text-align:center;}
  }