:root{
  --bg:#0b0f14;
  --card:#121821;
  --soft:#1a2230;
  --text:#e6edf3;
  --muted:#a9b2be;
  --brand:#61dafb;
  --accent:#7cf5c5;
  --border:#273142;
}

*{box-sizing:border-box;}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial;
  background:linear-gradient(180deg,#0b0f14,#0e141c 35%,#0b0f14);
  color:var(--text);
}

a{
  color:var(--brand);
  text-decoration:none;
}
a:hover{opacity:.9;}

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

.container{
  width:min(1100px,92%);
  margin-inline:auto;
}

/* HEADER & NAV */

header{
  position:sticky;
  top:0;
  background:rgba(11,15,20,.75);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--border);
  z-index:10;
}

nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.9rem 0;
}

.brand{
  font-weight:700;
  letter-spacing:.2px;
}

.navlinks a{
  margin-left:1rem;
  padding:.5rem .7rem;
  border-radius:10px;
}
.navlinks a:hover{
  background:var(--soft);
}

/* HERO */

.hero{
  padding:5rem 0 3.5rem;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:2rem;
  align-items:center;
}

.hero-photo{
  justify-self:end;
}

.hero-photo-caption{
  margin-top:.5rem;
}

.chip{
  display:inline-block;
  padding:.35rem .6rem;
  border:1px solid var(--border);
  border-radius:999px;
  color:var(--muted);
  font-size:.86rem;
}

h1{
  font-size:clamp(1.8rem,4.2vw,3rem);
  line-height:1.1;
  margin:.7rem 0 1rem;
}

.lead{
  color:var(--muted);
  font-size:1.05rem;
}

.cta{
  display:flex;
  gap:.8rem;
  margin-top:1.2rem;
  flex-wrap:wrap;
}

.btn{
  background:var(--brand);
  color:#09131a;
  border:0;
  padding:.8rem 1rem;
  border-radius:12px;
  font-weight:700;
  cursor:pointer;
}

.btn.ghost{
  background:transparent;
  border:1px solid var(--border);
  color:var(--text);
}

section{
  padding:3.5rem 0;
  border-top:1px solid var(--border);
}

h2{
  font-size:1.6rem;
  margin:0 0 1rem;
}

.grid{
  display:grid;
  gap:1rem;
}

@media(min-width:760px){
  .grid.cols-3{grid-template-columns:repeat(3,1fr);}
  .grid.cols-2{grid-template-columns:repeat(2,1fr);}
}

/* CARDS & ELEMENTS */

.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  overflow:hidden;
}

.card .body{
  padding:1rem;
}

.meta{
  color:var(--muted);
  font-size:.92rem;
}

.tags{
  display:flex;
  flex-wrap:wrap;
  gap:.35rem;
  margin-top:.6rem;
}

.tag{
  font-size:.78rem;
  border:1px solid var(--border);
  padding:.2rem .5rem;
  border-radius:999px;
  color:var(--muted);
}

.actions{
  display:flex;
  gap:.6rem;
  margin-top:.8rem;
  flex-wrap:wrap;
}

.actions a{
  border:1px solid var(--border);
  padding:.45rem .65rem;
  border-radius:10px;
}

.embed{
  width:100%;
  height:620px;
  border:1px solid var(--border);
  border-radius:14px;
  background:#0b0f14;
}

.footer{
  padding:2.5rem 0;
  color:var(--muted);
  text-align:center;
  border-top:1px solid var(--border);
}

.social{
  display:flex;
  gap:.7rem;
  justify-content:center;
  margin-top:.6rem;
  flex-wrap:wrap;
}

.pill{
  border:1px solid var(--border);
  padding:.45rem .7rem;
  border-radius:999px;
}

.avatar{
  width:150px;
  height:150px;
  border-radius:16px;
  object-fit:cover;
  border:1px solid var(--border);
}

.kpi{
  display:flex;
  gap:1rem;
  flex-wrap:wrap;
  margin-top:.8rem;
}

.kpi div{
  border:1px solid var(--border);
  background:var(--soft);
  padding:.6rem .8rem;
  border-radius:12px;
}

.muted{
  color:var(--muted);
}

.sep{
  height:1px;
  background:var(--border);
  margin:1.2rem 0;
}

/* FORMULAIRE CONTACT */

form input,
form textarea{
  width:100%;
  padding:.6rem;
  border-radius:10px;
  border:1px solid var(--border);
  background:var(--soft);
  color:var(--text);
}

/* RESPONSIVE */

@media(max-width:759px){
  .hero{
    grid-template-columns:1fr;
    text-align:left;
  }
  .hero-photo{
    justify-self:flex-start;
  }
}