/* EL BRIGHT — feuille de style principale
   Couleurs : modifier uniquement les variables ci-dessous. */

@font-face {
  font-family: "Cormorant Garamond";
  src: url("../fonts/CormorantGaramond.woff2") format("woff2");
  font-weight: 500 600;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter.woff2") format("woff2");
  font-weight: 300 600;
  font-display: swap;
}

:root {
  --black: #0a0a0b;
  --anthracite: #141416;
  --anthracite-2: #1c1c1f;
  --line: rgba(255, 255, 255, 0.09);
  --white: #ffffff;
  --text: #e9e7e3;
  --muted: #9a978f;
  --gold: #c6a15b;
  --gold-soft: rgba(198, 161, 91, 0.35);
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 48px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--black);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
::selection { background: var(--gold); color: var(--black); }
:focus-visible { outline: 1px solid var(--gold); outline-offset: 4px; }

.skip {
  position: absolute; left: -9999px; top: 12px;
  background: var(--gold); color: var(--black); padding: 8px 14px; z-index: 100;
}
.skip:focus { left: 12px; }

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

/* ---------- Typographie ---------- */
h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--white);
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.005em;
}
h1 { font-size: clamp(2.6rem, 6.4vw, 5.2rem); }
h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
h3 { font-size: clamp(1.45rem, 2.2vw, 1.8rem); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 0.72rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold); font-weight: 500; margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 32px; height: 1px; background: var(--gold); }
.lead { font-size: clamp(1.02rem, 1.4vw, 1.15rem); color: var(--muted); max-width: 56ch; }
.muted { color: var(--muted); }

/* ---------- En-tête ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-solid {
  background: rgba(10, 10, 11, 0.86);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; height: 78px; }

/* Emplacement du logo officiel : remplacer assets/img/logo.svg par le vrai fichier. */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo img { height: 34px; width: auto; }

.nav ul { list-style: none; display: flex; gap: 36px; margin: 0; padding: 0; }
.nav a {
  font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text); opacity: 0.78; position: relative; padding: 6px 0;
  transition: opacity 0.3s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { opacity: 1; }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }

.menu-btn {
  display: none; background: none; border: 0; padding: 10px; margin-right: -10px;
  cursor: pointer; color: var(--white);
}
.menu-btn span { display: block; width: 24px; height: 1px; background: currentColor; transition: transform 0.3s var(--ease); }
.menu-btn span + span { margin-top: 7px; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

@media (max-width: 860px) {
  .menu-btn { display: block; }
  .nav {
    position: fixed; inset: 78px 0 0 0; background: var(--black);
    opacity: 0; visibility: hidden; transition: opacity 0.3s var(--ease), visibility 0.3s;
  }
  .nav.is-open { opacity: 1; visibility: visible; }
  .nav ul { flex-direction: column; gap: 0; padding: 24px var(--gutter); }
  .nav li { border-bottom: 1px solid var(--line); }
  .nav a { display: block; padding: 20px 0; font-size: 0.9rem; }
  .nav a::after { display: none; }
  body.menu-open { overflow: hidden; }
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px; padding: 0 30px;
  font: 500 0.78rem/1 var(--sans); letter-spacing: 0.18em; text-transform: uppercase;
  border: 1px solid var(--gold); color: var(--black); background: var(--gold);
  cursor: pointer; transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}
.btn:hover { background: transparent; color: var(--gold); }
.btn--ghost { background: transparent; color: var(--white); border-color: rgba(255, 255, 255, 0.35); }
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn svg { width: 16px; height: 16px; }
.btn[aria-disabled="true"] { opacity: 0.45; pointer-events: none; }
.btns { display: flex; flex-wrap: wrap; gap: 14px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.76rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold);
}
.link-arrow::after { content: "→"; transition: transform 0.3s var(--ease); }
.link-arrow:hover::after { transform: translateX(5px); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: flex-end; padding: 140px 0 clamp(64px, 10vh, 110px);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -1; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.65) contrast(1.05) brightness(0.62); }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(10,10,11,0.82) 0%, rgba(10,10,11,0.35) 60%, rgba(10,10,11,0.1) 100%),
    linear-gradient(180deg, rgba(10,10,11,0.55) 0%, rgba(10,10,11,0.15) 40%, rgba(10,10,11,0.96) 100%);
}
.hero h1 { max-width: 15ch; }
.hero .lead { color: #c9c6bf; margin-bottom: 38px; }
.hero__foot {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; flex-wrap: wrap;
  margin-top: clamp(48px, 9vh, 96px); padding-top: 26px; border-top: 1px solid var(--line);
  font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted);
}
.hero__foot strong { color: var(--white); font-weight: 400; }

.page-hero { padding: 180px 0 80px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); max-width: 18ch; }

/* ---------- Sections ---------- */
.section { padding: clamp(80px, 12vw, 150px) 0; }
.section--alt { background: var(--anthracite); }
.section__head { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: end; margin-bottom: 64px; }
.section__head h2 { margin: 0; }
.section__head p { margin: 0; color: var(--muted); }
@media (max-width: 860px) { .section__head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 44px; } }

/* Grille des secteurs */
.sectors { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.sector {
  padding: 40px 32px 44px 0; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 14px;
}
.sector + .sector { padding-left: 32px; }
.sector:last-child { border-right: 0; }
.sector__num { font-family: var(--serif); font-size: 1rem; color: var(--gold); }
.sector h3 { font-size: 1.5rem; margin: 0; }
.sector p { color: var(--muted); font-size: 0.94rem; margin: 0; flex: 1; }
@media (max-width: 1000px) {
  .sectors { grid-template-columns: 1fr 1fr; }
  .sector, .sector + .sector { padding: 36px 28px 40px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .sector:nth-child(even) { padding-left: 28px; border-left: 1px solid var(--line); }
}
@media (max-width: 600px) {
  .sectors { grid-template-columns: 1fr; }
  .sector:nth-child(even) { padding-left: 0; border-left: 0; }
}

/* Statut : en activité / en développement */
.tag {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 6px 12px; border: 1px solid var(--line); color: var(--muted);
}
.tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; border: 1px solid var(--muted); }
.tag--live { color: var(--gold); border-color: var(--gold-soft); }
.tag--live::before { background: var(--gold); border-color: var(--gold); }

/* Split image + texte */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 96px); align-items: center; }
.split__media { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--anthracite-2); }
.split__media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.85) contrast(1.05) brightness(0.8); transition: transform 1.4s var(--ease), filter 1s var(--ease); }
.split__media:hover img { transform: scale(1.03); filter: grayscale(0.5) contrast(1.05) brightness(0.85); }
.split__media::after { content: ""; position: absolute; inset: 16px; border: 1px solid var(--gold-soft); pointer-events: none; }
.split--rev .split__media { order: 2; }
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .split--rev .split__media { order: 0; }
  .split__media { aspect-ratio: 4 / 3; }
}

/* Activités détaillées */
.activity { padding: clamp(64px, 9vw, 110px) 0; border-bottom: 1px solid var(--line); }
.activity:last-of-type { border-bottom: 0; }
.activity__num { font-family: var(--serif); font-size: clamp(3rem, 6vw, 4.6rem); color: var(--gold); line-height: 1; margin-bottom: 18px; }
.activity ul { list-style: none; padding: 0; margin: 28px 0 0; }
.activity li { padding: 14px 0 14px 26px; border-top: 1px solid var(--line); position: relative; font-size: 0.96rem; }
.activity li::before { content: ""; position: absolute; left: 0; top: 26px; width: 12px; height: 1px; background: var(--gold); }
.activity li:last-child { border-bottom: 1px solid var(--line); }
.activity .tag { margin-bottom: 22px; }
.note { font-size: 0.86rem; color: var(--muted); border-left: 1px solid var(--gold); padding-left: 16px; margin-top: 28px; }

/* Valeurs */
.values { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.value { padding: 36px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
@media (max-width: 1000px) { .values { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .values { grid-template-columns: 1fr; } }
.value svg { width: 28px; height: 28px; color: var(--gold); margin-bottom: 22px; }
.value h3 { font-size: 1.35rem; margin-bottom: 8px; }
.value p { color: var(--muted); font-size: 0.92rem; margin: 0; }

/* Partenaires */
.partners { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.partner { background: var(--black); padding: 44px 32px; display: flex; flex-direction: column; gap: 10px; min-height: 190px; }
.section--alt .partner { background: var(--anthracite); }
.partner__name { font-family: var(--sans); font-weight: 600; font-size: 1.35rem; letter-spacing: 0.2em; color: var(--white); }
.partner p { color: var(--muted); font-size: 0.88rem; margin: 0; flex: 1; }
@media (max-width: 860px) { .partners { grid-template-columns: 1fr; } .partner { min-height: 0; } }

/* Audiences / CTA */
.audiences { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; margin: 56px 0; }
.audiences h3 { font-size: 1.5rem; }
.audiences p { color: var(--muted); font-size: 0.94rem; }
@media (max-width: 860px) { .audiences { grid-template-columns: 1fr; gap: 32px; } }

.cta { text-align: center; }
.cta h2 { max-width: 26ch; margin-left: auto; margin-right: auto; }
.cta .lead { margin: 0 auto 40px; }
.cta .btns { justify-content: center; }
.rule { width: 1px; height: 64px; background: var(--gold); margin: 0 auto 40px; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.35fr; gap: clamp(48px, 8vw, 110px); }
@media (max-width: 900px) { .contact { grid-template-columns: 1fr; } }
.contact__info dl { margin: 36px 0; }
.contact__info dt { font-size: 0.7rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold); margin-bottom: 6px; }
.contact__info dd { margin: 0 0 26px; color: var(--white); font-size: 1.05rem; }
.contact__info dd a { border-bottom: 1px solid var(--gold-soft); transition: border-color 0.3s; }
.contact__info dd a:hover { border-color: var(--gold); }
.contact__info .btns { flex-direction: column; align-items: stretch; max-width: 340px; }

.form { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 24px; }
.form .full { grid-column: 1 / -1; }
@media (max-width: 600px) { .form { grid-template-columns: 1fr; } }
.field label { display: block; font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.field label span { color: var(--gold); }
.field input, .field textarea {
  width: 100%; background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,0.18);
  color: var(--white); font: 300 1rem/1.5 var(--sans); padding: 10px 0 12px; border-radius: 0;
  transition: border-color 0.3s var(--ease);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field textarea:focus { outline: none; border-bottom-color: var(--gold); }
.field input:user-invalid, .field textarea:user-invalid { border-bottom-color: #c9705b; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form__foot { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
.form__foot p { font-size: 0.8rem; color: var(--muted); margin: 0; max-width: 44ch; }
.form__foot a { color: var(--gold); }
.form__status { font-size: 0.9rem; min-height: 1.5em; margin: 0; }
.form__status.is-error { color: #e0907d; }

/* ---------- Pages légales ---------- */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.7rem; margin-top: 2.2em; }
.prose p, .prose li { color: #cfccc5; }
.prose a { color: var(--gold); border-bottom: 1px solid var(--gold-soft); }
.todo { color: var(--gold); font-style: normal; border: 1px dashed var(--gold-soft); padding: 1px 8px; font-size: 0.9em; }

/* ---------- Pied de page ---------- */
.footer { border-top: 1px solid var(--line); padding: 80px 0 40px; background: var(--black); }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 56px; }
.footer__top h4 { font: 500 0.7rem/1 var(--sans); letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold); margin: 0 0 22px; }
.footer__top ul { list-style: none; margin: 0; padding: 0; }
.footer__top li { margin-bottom: 10px; font-size: 0.92rem; color: var(--muted); }
.footer__top a:hover { color: var(--white); }
.footer__slogan { font-family: var(--serif); font-size: 1.5rem; color: var(--white); margin: 22px 0 0; max-width: 22ch; line-height: 1.3; }
.footer__legal { border-top: 1px solid var(--line); padding-top: 28px; font-size: 0.78rem; color: #77746d; line-height: 1.7; }
.footer__legal p { max-width: 900px; }
.footer__links { display: flex; flex-wrap: wrap; gap: 8px 26px; margin-top: 16px; }
.footer__links a:hover { color: var(--white); }
@media (max-width: 860px) { .footer__top { grid-template-columns: 1fr; gap: 36px; } }

/* ---------- Animations discrètes ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}