/* Longitude Harrison Héritage - feuille de style */
:root{
  --ink:#242230;
  --ink-soft:#3c3a49;
  --paper:#ffffff;
  --panel:#f3f2f5;
  --dark:#2a2833;
  --dark-2:#201f29;
  --accent:#3f5bd8;
  --line:#dcdae2;
  --shadow:0 18px 50px rgba(20,18,35,.12);
  --gutter:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Barlow Semi Condensed',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--ink);
  background:var(--paper);
  font-size:18px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{font-family:'Poppins',sans-serif;line-height:1.1;margin:0;font-weight:700}
p{margin:0 0 1em}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 var(--gutter)}

/* Boutons */
.btn{
  display:inline-block;font-family:'Poppins',sans-serif;font-weight:600;
  font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;
  padding:14px 30px;border-radius:40px;border:1.5px solid currentColor;
  cursor:pointer;transition:.25s;background:transparent;
}
.btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn--light{color:#fff}
.btn--light:hover{background:#fff;color:var(--ink)}
.btn--solid{background:var(--dark);color:#fff;border-color:var(--dark)}
.btn--solid:hover{background:#000;border-color:#000;color:#fff}
.btn--pill{border-radius:40px}

/* En-tete */
.site-header{
  position:sticky;top:0;z-index:100;background:var(--dark);
  border-bottom:1px solid rgba(255,255,255,.08);
}
/* Accueil : header transparent au-dessus du hero, puis noir au scroll */
.home .site-header{
  position:fixed;left:0;right:0;background:transparent;border-bottom-color:transparent;
  transition:background .3s ease,border-color .3s ease;
}
.home .site-header.scrolled{background:var(--dark);border-bottom-color:rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand-logo{width:42px;height:42px;border-radius:50%;object-fit:cover;flex:none}
.brand-name{font-family:'Poppins',sans-serif;font-weight:700;font-size:1.15rem;letter-spacing:.01em}
.site-nav{display:flex;align-items:center;gap:30px}
.site-nav a{
  color:#e9e8ef;font-family:'Poppins',sans-serif;font-weight:500;font-size:.95rem;
  position:relative;padding:4px 0;transition:.2s;
}
.site-nav a:hover{color:#fff}
.site-nav a.active{color:#fff}
.site-nav a.active::before{content:"\2022";color:var(--accent);margin-right:6px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:26px;height:2px;background:#fff;transition:.3s}

/* Hero generique */
.hero{position:relative;min-height:82vh;display:flex;align-items:flex-end;
  background-size:cover;background-position:center;color:#fff}
/* Accueil : hero plein ecran, image couvrante, header transparent en surimpression */
.home .hero{min-height:100vh;height:100vh}
.hero::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,30,.15) 0%,rgba(20,18,30,.05) 45%,rgba(20,18,30,.55) 100%)}
.hero .wrap{position:relative;z-index:2;padding-bottom:70px;padding-top:70px}
.hero-eyebrow{font-family:'Poppins',sans-serif;font-weight:600;font-size:1.05rem;margin-bottom:6px}
.hero-title{font-size:clamp(2.6rem,6vw,4.4rem);font-weight:800;margin-bottom:26px;text-shadow:0 4px 24px rgba(0,0,0,.35)}

/* Section deux colonnes */
/* NB : ces blocs partagent l'element .wrap -> ne jamais redefinir le padding
   horizontal ici, sinon la gouttiere laterale saute (surtout en mobile). */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding-top:90px;padding-bottom:90px}
.split h2{font-size:clamp(1.9rem,3.4vw,2.9rem);font-weight:800;margin-bottom:32px}
.split-media img{border-radius:16px;box-shadow:var(--shadow)}

/* Equipe (accueil) */
.team-band{position:relative;padding:70px 0 90px;color:#fff;background-size:cover;background-position:center}
.team-band::before{content:"";position:absolute;inset:0;background:rgba(24,22,32,.55)}
.team-band .wrap{position:relative;z-index:2}
.team-band h2{text-align:center;font-size:clamp(2.2rem,5vw,3.2rem);font-weight:800;
  letter-spacing:.04em;margin-bottom:46px;text-transform:uppercase;text-shadow:0 3px 18px rgba(0,0,0,.4)}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.team-card{background:#fff;color:var(--ink);border-radius:14px;overflow:hidden;
  box-shadow:var(--shadow);text-align:center;padding-bottom:22px}
.team-card img{width:100%;aspect-ratio:1/1;object-fit:cover}
.team-card h3{font-size:1.25rem;margin:20px 12px 4px}
.team-card .role{font-style:italic;color:var(--ink-soft);font-size:.95rem;margin:0 12px}
.team-card .rule{width:60%;height:2px;background:var(--line);margin:16px auto 0}

/* Bloc mission centre */
.mission{max-width:820px;margin:0 auto;text-align:center;padding:80px var(--gutter)}
.mission h2{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;color:var(--ink);margin-bottom:30px}
.mission p{font-style:italic;color:var(--ink-soft);max-width:660px;margin:0 auto 1.2em}
.mission .btn{margin-top:22px}

/* Page interieure titre coin */
.page-kicker{padding-top:52px}
.page-kicker h1{font-size:clamp(1.6rem,3vw,2rem);font-weight:700}

/* Qui sommes nous : intro */
.intro{max-width:1000px;margin:0 auto;padding:30px var(--gutter) 70px}
.intro h2{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800;margin-bottom:28px;text-align:center}
.intro .body{color:var(--ink-soft);max-width:760px;margin:0 auto 30px}
.intro .body p{margin-bottom:.7em}
.intro .center{text-align:center}

/* Liste equipe detaillee */
.people{background:var(--panel);padding:70px 0}
.person{display:grid;grid-template-columns:1fr 300px;gap:50px;align-items:center;
  max-width:1000px;margin:0 auto;padding:34px var(--gutter)}
.person:not(:last-child){border-bottom:1px solid var(--line)}
.person h3{font-size:1.5rem;margin-bottom:2px}
.person .role{font-style:italic;color:var(--ink-soft);margin-bottom:16px}
.person p{color:var(--ink-soft);margin:0}
.person-photo{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:10px;box-shadow:var(--shadow)}

/* Biographie hero */
.bio-hero{position:relative;min-height:90vh;background-size:cover;background-position:center right;
  display:flex;align-items:stretch;color:#fff}
.bio-hero .panel{background:linear-gradient(90deg,rgba(30,28,40,.96) 0%,rgba(30,28,40,.9) 60%,rgba(30,28,40,0) 100%);
  width:46%;min-width:340px;display:flex;flex-direction:column;justify-content:center;padding:60px 56px}
.bio-hero h1{font-size:clamp(3rem,7vw,5.4rem);font-weight:800;margin-bottom:20px}
.bio-hero .sub{font-family:'Poppins',sans-serif;font-weight:600;font-size:clamp(1.3rem,2.4vw,1.9rem);margin-bottom:auto}
.bio-hero .note{margin-top:40px;max-width:320px}
.bio-hero .note p{font-size:1rem;margin-bottom:16px}

/* Biographie contenu */
.bio-body{padding-top:70px;padding-bottom:40px}
.bio-body h2{text-align:right;font-size:clamp(1.9rem,4vw,3rem);font-weight:800;margin-bottom:40px}
.bio-cols{display:grid;grid-template-columns:340px 1fr;gap:60px;align-items:start}
.bio-figs figure{margin:0 0 26px}
.bio-figs img{border-radius:14px;box-shadow:var(--shadow);width:100%}
.bio-figs figcaption{font-style:italic;text-align:center;color:var(--ink-soft);margin-top:10px;font-size:.95rem}
.bio-text{color:var(--ink-soft);text-align:justify}
.bio-figs .btn{margin-top:6px}

/* Longitude */
.longi{display:grid;grid-template-columns:minmax(340px,42%) 1fr;gap:0}
.longi-img{background:var(--dark-2);display:flex;align-items:center;justify-content:center;padding:40px}
.longi-img img{border-radius:6px;box-shadow:var(--shadow)}
.longi-content{padding:70px 60px}
.longi-content h1{font-size:clamp(2.4rem,5vw,4rem);font-weight:800;text-align:right;margin-bottom:34px}
.longi-content .body{color:var(--ink-soft);text-align:justify}
.longi-content .body p{margin-bottom:.8em}
.longi-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:40px 0 10px}
.longi-thumbs img{border-radius:10px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}
.longi-actions{text-align:right;margin-top:10px}

/* Demande (formulaire) */
.form-page{background:var(--dark);color:#fff;padding:60px 0 90px}
.form-page h1{text-align:center;font-size:clamp(2.2rem,5.4vw,3.6rem);font-weight:800;margin-bottom:40px}
.form-card{background:#fafafa;color:var(--ink);border-radius:26px;max-width:1040px;margin:0 auto;
  padding:52px 56px;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 34px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-family:'Roboto Mono',monospace;font-style:italic;font-weight:500;font-size:1rem;color:var(--ink)}
.field input,.field textarea{
  font-family:'Roboto Mono',monospace;font-size:1rem;color:var(--ink);
  padding:14px 16px;border:1.5px solid #c9c7d2;border-radius:8px;background:#fff;width:100%;
}
.field input::placeholder,.field textarea::placeholder{color:#9a98a6;font-style:italic}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(63,91,216,.15)}
.field textarea{min-height:340px;resize:vertical}
.consignes{grid-column:1/-1;margin:14px 0 4px}
.consignes h2{font-family:'Poppins',sans-serif;font-style:italic;text-align:center;text-transform:uppercase;
  font-size:clamp(1.1rem,2.4vw,1.5rem);font-weight:700;margin-bottom:22px;line-height:1.25}
.consignes .txt{font-style:italic;color:var(--ink-soft);font-size:.98rem}
.consignes .txt p{margin-bottom:.5em}
.consignes ul{list-style:none;padding:0;margin:0}
.consignes li{margin-bottom:.5em;font-style:italic;color:var(--ink-soft)}
.consignes li::before{content:"- "}
.form-submit{grid-column:1/-1;text-align:center;margin-top:30px}
.form-submit .btn{padding:16px 52px}
.form-msg{grid-column:1/-1;text-align:center;margin-top:18px;font-family:'Poppins',sans-serif;
  font-weight:600;font-size:1.05rem;display:none;padding:14px;border-radius:10px}
.form-msg.show{display:block}
.form-msg.ok{background:#e7f5ec;color:#1c7a45}
.form-msg.err{background:#fbe9e9;color:#b3261e}

/* Pages de résultat (send / failed / encours) */
.result{max-width:780px;margin:0 auto;text-align:center;padding:100px var(--gutter);
  min-height:62vh;display:flex;flex-direction:column;justify-content:center}
.result h1{font-size:clamp(2rem,4.6vw,3.2rem);font-weight:800;margin-bottom:18px}
.result h2{font-family:'Poppins',sans-serif;font-weight:600;color:var(--ink-soft);
  font-size:clamp(1.1rem,2.4vw,1.5rem);margin-bottom:28px}
.result .lead{color:var(--ink-soft);font-style:italic;font-size:1.05rem;max-width:680px;margin:0 auto 1.2em}
.result .btn{margin-top:26px;align-self:center}

/* Pied de page */
.site-footer{background:var(--dark);color:#e9e8ef}
.footer-inner{display:grid;grid-template-columns:2fr 1fr;gap:50px;padding-top:52px;padding-bottom:40px}
.footer-brand{display:flex;gap:16px;align-items:flex-start;max-width:560px}
.footer-logo{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:none}
.footer-name{font-family:'Poppins',sans-serif;font-weight:700;font-size:1.15rem;color:#fff;margin-bottom:10px}
.footer-brand p{font-style:italic;color:#b7b5c4;font-size:.95rem;margin:0}
.footer-menu h4{font-family:'Poppins',sans-serif;color:#fff;font-size:1.05rem;margin-bottom:14px}
.footer-menu a{display:block;color:#c9c7d6;padding:5px 0;font-size:.95rem}
.footer-menu a:hover{color:#fff}
.footer-menu a.active::before{content:"\2022";color:var(--accent);margin-right:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:.85rem;color:#8f8d9d}

/* Responsive */
@media(max-width:900px){
  :root{--gutter:26px}
  body{font-size:17px}
  .site-nav{position:fixed;inset:74px 0 auto 0;background:var(--dark);flex-direction:column;
    gap:0;padding:10px 0;transform:translateY(-140%);transition:.35s;box-shadow:0 20px 40px rgba(0,0,0,.4)}
  .site-nav.open{transform:translateY(0)}
  .site-nav a{padding:14px 24px;width:100%;border-top:1px solid rgba(255,255,255,.06)}
  .burger{display:flex}
  .burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .split{grid-template-columns:1fr;gap:36px;padding-top:60px;padding-bottom:60px}
  .split-media{order:-1}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .person{grid-template-columns:1fr;gap:24px}
  .person-photo{max-width:320px}
  .bio-hero .panel{width:100%;min-width:0;padding:60px var(--gutter);
    background:linear-gradient(180deg,rgba(30,28,40,.92),rgba(30,28,40,.82))}
  .bio-hero{background-position:center}
  .bio-cols{grid-template-columns:1fr;gap:34px}
  .bio-body h2,.longi-content h1{text-align:left}
  .bio-figs{max-width:420px}
  .longi{grid-template-columns:1fr}
  .longi-img{padding:30px var(--gutter)}
  .longi-content{padding:50px var(--gutter)}
  .longi-actions{text-align:left}
  .footer-inner{grid-template-columns:1fr;gap:30px}
  .form-card{padding:34px 22px}
  .form-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .team-grid{grid-template-columns:1fr}
  .brand-name{font-size:1rem}
  .longi-thumbs{grid-template-columns:1fr}
  /* la carte du formulaire est deja dans un .wrap : on allege son padding
     interne pour que les champs ne soient pas doublement rentres */
  .form-card{padding:30px 18px;border-radius:18px}
  .site-nav a{padding-left:var(--gutter);padding-right:var(--gutter)}
}