/* ============================================================
   Nexus Production — feuille de style unique
   Palette relevee sur le site d'origine : noir #000 + or #f2b01e
   ============================================================ */

:root {
  --noir:        #000000;
  --or:          #f2b01e;
  --or-sombre:   #d3970f;
  --gris-fonce:  #131313;
  --gris-carte:  #1a1a1a;
  --gris-bord:   #2a2a2a;
  --gris-texte:  #858e9a;
  --clair:       #F3F5F8;
  --blanc:       #FFFFFF;

  --largeur: 1160px;
  --rayon: 12px;
  --ombre: 0 12px 40px rgba(0, 0, 0, .55);
  --transition: .35s cubic-bezier(.2, .7, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 400;
  color: var(--gris-texte);
  background: var(--noir);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  color: var(--blanc);
  line-height: 1.2;
  margin: 0 0 .6em;
  font-weight: 600;
}

h1 { font-size: clamp(2.1rem, 5.5vw, 3.7rem); font-weight: 700; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); letter-spacing: -.01em; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

a { color: var(--or); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip { position: absolute; left: -9999px; background: var(--or); color: #000; padding: .8rem 1.2rem; z-index: 100; }
.skip:focus { left: 1rem; top: 1rem; }

.conteneur { width: min(100% - 2.5rem, var(--largeur)); margin-inline: auto; }
.conteneur-etroit { max-width: 720px; text-align: center; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  background: var(--or);
  color: #000;
  padding: .82rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: .93rem;
  letter-spacing: .01em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  box-shadow: 0 8px 26px rgba(242, 176, 30, .26);
}
.btn:hover {
  background: var(--or-sombre);
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(242, 176, 30, .40);
  text-decoration: none;
  color: #000;
}
.btn-grand { padding: 1rem 2.5rem; font-size: 1rem; }
.btn-nav { padding: .55rem 1.5rem; box-shadow: none; }

/* ---------- En-tête et héros ---------- */
.entete {
  position: relative;
  background: var(--noir);
  color: var(--blanc);
  overflow: hidden;
}
/* halo dore discret, rappel de l'accent */
.entete::after {
  content: "";
  position: absolute; inset: auto -10% -40% 45%;
  height: 70%;
  background: radial-gradient(closest-side, rgba(242,176,30,.16), transparent 70%);
  pointer-events: none;
}

.nav {
  width: min(100% - 2.5rem, var(--largeur));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 0;
  position: relative;
  z-index: 2;
}

.marque img { height: 46px; width: auto; }

.menu { display: flex; align-items: center; gap: 2.1rem; list-style: none; margin: 0; padding: 0; }
.menu a { color: rgba(255,255,255,.80); font-size: .94rem; transition: color var(--transition); }
.menu a:hover { color: var(--or); text-decoration: none; }
.menu .btn-nav { color: #000; }
.menu .btn-nav:hover { color: #000; }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: .5rem; }
.burger span { width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: var(--transition); }

.hero { padding: clamp(4.5rem, 12vw, 9rem) 0 clamp(5.5rem, 13vw, 10rem); position: relative; z-index: 2; }
.hero-inner { width: min(100% - 2.5rem, var(--largeur)); margin-inline: auto; max-width: 820px; }

.sur-titre {
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: .76rem;
  font-weight: 600;
  color: var(--or);
  margin-bottom: 1.1rem;
}
.hero h1 { color: #fff; margin-bottom: .5em; }
.hero-texte {
  font-size: clamp(1.02rem, 2vw, 1.2rem);
  color: rgba(255,255,255,.72);
  font-weight: 300;
  max-width: 620px;
  margin-bottom: 2.3rem;
}

/* ---------- Sections ---------- */
.section { padding: clamp(4rem, 9vw, 7rem) 0; }
.section > .conteneur > h2 { text-align: center; }

.chapo {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.2rem;
  font-size: 1.01rem;
  font-weight: 300;
  color: var(--gris-texte);
}

.section-sombre { background: var(--gris-fonce); }
.section-claire { background: var(--clair); color: #4a4a4a; }
.section-claire h2, .section-claire h3 { color: #111; }

.section-cta { background: var(--gris-fonce); text-align: center; }
.section-cta .chapo { margin-bottom: 2.3rem; }

/* ---------- Grilles ---------- */
.grille { display: grid; gap: 1.8rem; }
.grille-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------- Cartes de services ---------- */
.carte {
  background: var(--gris-carte);
  border: 1px solid var(--gris-bord);
  border-radius: var(--rayon);
  padding: 2.2rem 1.8rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.carte:hover {
  transform: translateY(-6px);
  border-color: rgba(242,176,30,.55);
  box-shadow: var(--ombre);
}
.carte-icone {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(242, 176, 30, .12);
  color: var(--or);
  margin-bottom: 1.4rem;
}
.carte-icone svg { width: 28px; height: 28px; }
.carte p { margin: 0; font-size: .94rem; font-weight: 300; }

/* ---------- Deux colonnes ---------- */
.deux-colonnes { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.colonne-image img { border-radius: var(--rayon); box-shadow: var(--ombre); }

.atouts { list-style: none; margin: 2rem 0 0; padding: 0; }
.atouts li { padding-left: 2.6rem; position: relative; margin-bottom: 1.7rem; }
.atouts li::before {
  content: "";
  position: absolute; left: 0; top: .38rem;
  width: 1.4rem; height: 1.4rem;
  border-radius: 50%;
  background: var(--or);
  box-shadow: 0 0 0 5px rgba(242,176,30,.16);
}
.atouts h3 { margin-bottom: .25em; font-size: 1.05rem; }
.atouts p { margin: 0; font-size: .92rem; font-weight: 300; }

/* ---------- Galerie ---------- */
.galerie { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.4rem; }
.vignette {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--rayon);
  background: var(--gris-carte);
  border: 1px solid var(--gris-bord);
}
.vignette img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.7,.3,1);
}
.vignette:hover img { transform: scale(1.06); }
.vignette figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 2.6rem 1.2rem 1.1rem;
  background: linear-gradient(transparent, rgba(0,0,0,.92));
  color: #fff;
  font-size: .89rem;
  display: flex; flex-direction: column; gap: .15rem;
}
.vignette figcaption b { color: var(--or); font-weight: 500; }
.vignette figcaption small { opacity: .65; font-size: .79rem; }

/* ---------- Avis ---------- */
.avis {
  margin: 0;
  background: #fff;
  border-radius: var(--rayon);
  padding: 2.3rem 1.9rem 1.8rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.08);
  position: relative;
  color: #4a4a4a;
}
.avis::before {
  content: "\201C";
  position: absolute; top: .1rem; left: 1.2rem;
  font-size: 4.5rem; line-height: 1;
  color: rgba(242,176,30,.35);
  font-family: Georgia, serif;
}
.avis p { position: relative; font-style: italic; font-weight: 300; margin-bottom: .9rem; }
.avis cite { font-style: normal; font-weight: 600; color: var(--or-sombre); font-size: .89rem; }

/* ---------- Équipe ---------- */
.grille-equipe { max-width: 900px; margin-inline: auto; }
.membre { margin: 0; text-align: center; }
.membre img {
  border-radius: var(--rayon);
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--gris-bord);
  transition: transform var(--transition), border-color var(--transition);
}
.membre:hover img { transform: translateY(-6px); border-color: rgba(242,176,30,.55); }
.membre figcaption { margin-top: 1rem; font-weight: 500; color: #fff; }

/* ---------- Pied de page ---------- */
.pied { background: var(--noir); border-top: 1px solid var(--gris-bord); color: rgba(255,255,255,.45); padding: 2.8rem 0; }
.pied-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.pied-logo { height: 38px; width: auto; opacity: .8; }
.pied p { margin: 0; font-size: .86rem; }

/* ---------- Animations ---------- */
.anim { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.anim.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .anim { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .deux-colonnes { grid-template-columns: 1fr; }
  .colonne-image { order: -1; }

  .burger { display: flex; }
  .menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--gris-carte);
    border: 1px solid var(--gris-bord);
    border-radius: var(--rayon);
    padding: .5rem;
    box-shadow: var(--ombre);
    display: none;
    z-index: 50;
  }
  .menu.ouvert { display: flex; }
  .menu li { border-bottom: 1px solid var(--gris-bord); }
  .menu li:last-child { border: 0; padding: .6rem; }
  .menu a { display: block; padding: .9rem 1rem; }
  .menu .btn-nav { text-align: center; }
}