:root{
  --bg:#0e0f13;
  --text:#eef2f7;
  --muted:#b7c0d1;
  --primary:#4c7dff;
  --accent:#11c8a8;
  --radius:18px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
body{
  margin:0;
  background:linear-gradient(180deg,#0b0c10,var(--bg));
  color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
}
img,video{display:block;width:100%;border-radius:14px}
a{text-decoration:none;color:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 18px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(14,15,19,.8);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-row{
  display:flex;align-items:center;gap:14px;min-height:70px;
}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#000;font-weight:900;
}
.nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;gap:10px;
}
.nav a{
  padding:8px 12px;border-radius:10px;
  color:var(--muted);border:1px solid transparent;
  transition:.2s;
}
.nav a:hover{
  background:rgba(255,255,255,.06);
  color:var(--text);
}
.nav a.active{
  background:rgba(255,255,255,.14);
  color:var(--text);font-weight:700;
}
.btn-cv{
  margin-left:auto;padding:10px 14px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#6aa2ff);
  color:#000;font-weight:800;
  box-shadow:var(--shadow);
}
.nav-toggle{display:none}
.burger{display:none;margin-left:auto;cursor:pointer}
.burger span{display:block;width:26px;height:2px;background:var(--text);margin:5px 0}

/* ===== Intro ===== */
.intro{
  text-align:center;
  padding:40px 0 20px;
}
.intro h1{
  font-size:clamp(30px,5vw,46px);
  margin:0 0 8px;
}
.title-white{
  color:var(--text);
}
.title-colored{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.intro p{
  margin:0;
  color:var(--muted);
  max-width:700px;
  margin-inline:auto;
}

/* ===== Filters ===== */
.filters{
  display:flex;flex-wrap:wrap;
  gap:10px;justify-content:center;
  margin-bottom:20px;
}
.filter-btn{
  padding:10px 16px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  color:var(--muted);
  cursor:pointer;font-size:14px;
}
.filter-btn.active{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#000;font-weight:700;
  box-shadow:0 0 18px rgba(76,125,255,.6);
}

/* ===== Galerie ===== */
.gallery{
  padding-bottom:50px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr)); /* 3 par ligne */
  gap:16px;
}
.item{
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
  padding:6px;
  cursor:pointer;
}
.item img{
  aspect-ratio:4/3;object-fit:cover;
}
.item video{
  aspect-ratio:16/9;object-fit:cover;
}

/* ===== Lightbox ===== */
.lightbox{
  position:fixed;inset:0;z-index:80;
  background:rgba(0,0,0,.9);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
}
.lightbox.hidden{display:none}
#closeBtn{
  position:absolute;
  top:20px;
  right:26px;
  width:40px;
  height:40px;
  border-radius:999px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  font-weight:700;
  color:#000;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  cursor:pointer;
  z-index:2; /* au-dessus de la vidéo */
  box-shadow:0 0 18px rgba(76,125,255,.7);
}
#lightboxImg,
#lightboxVideo{
  max-width:96vw;
  max-height:96vh;
  width:auto;          /* on ne force PAS la largeur */
  height:auto;         /* on ne force PAS la hauteur */
  border-radius:18px;
  object-fit:contain;  /* garde les proportions sans déformer */
  display:block;
}

#lightboxImg.hidden,#lightboxVideo.hidden{
  display:none;
}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid rgba(255,255,255,.06);
  padding:26px 0 0;
}
.footer-grid{
  display:grid;gap:20px;
  grid-template-columns:2fr 1fr 1fr;
}
.brand-inline{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.links,.socials{
  list-style:none;margin:0;padding:0;display:grid;gap:8px;
}
.socials{
  grid-auto-flow:column;justify-content:flex-start;
}
.socials a{
  display:grid;place-items:center;
  width:36px;height:36px;border-radius:10px;
  background:rgba(255,255,255,.08);
}
.copy{
  text-align:center;color:var(--muted);
  padding:12px 0;margin-top:14px;
  border-top:1px solid rgba(255,255,255,.06);
}


/* ===== Responsive ===== */
@media(max-width:960px){
  .gallery{
    grid-template-columns:repeat(2,minmax(0,1fr)); /* 2 par ligne */
  }
}
@media(max-width:640px){
  .gallery{
    grid-template-columns:1fr; /* 1 par ligne */
  }
}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .nav{
    position:fixed;top:70px;left:0;right:0;
    background:#0e0f13;border-top:1px solid rgba(255,255,255,.06);
    display:none;padding:16px;
  }
  .nav ul{flex-direction:column}
  .burger{display:block}
  .btn-cv{display:none}
  .nav-toggle:checked ~ .burger + .nav{display:block}
}