/* SACHABAMBAM — feuille de style principale */
:root{
  --ink:#1B2A22;        /* vert forêt profond */
  --cream:#FFF6E7;      /* vanille */
  --sand:#FFE2C2;       /* pêche / sable */
  --accent:#E04A2C;     /* tany mena — terre rouge */
  --green:#1F7A4D;      /* ravinala */
  --lagoon:#11A69C;     /* lagon */
  --sun:#F8B526;        /* soleil / mangue */
  --pink:#E8467F;       /* bougainvillier */
  --muted:#6B6A5E;
  --line:rgba(27,42,34,.14);
  --serif:'Cormorant Garamond', Georgia, serif;
  --sans:'Manrope', system-ui, sans-serif;
  --max:1280px;
  --pad:clamp(20px,5vw,64px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--cream);color:var(--ink);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.eyebrow{font-size:.72rem;letter-spacing:.32em;text-transform:uppercase;color:var(--accent);font-weight:600}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.02;letter-spacing:-.01em}
h2{font-size:clamp(2.4rem,5.5vw,4.6rem)}
h2 em,h1 em{font-style:italic;color:var(--accent)}
p{color:#3b3632}

/* Boutons */
.btn{display:inline-flex;align-items:center;gap:.8em;padding:1em 2em;border:1px solid var(--ink);font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;font-weight:600;transition:.35s}
.btn:hover{background:var(--ink);color:var(--cream)}
.btn--light{border-color:var(--cream);color:var(--cream)}
.btn--light:hover{background:var(--cream);color:var(--ink)}
.btn--fill{background:var(--ink);color:var(--cream)}
.btn--fill:hover{background:var(--accent);border-color:var(--accent)}

/* Header */
.header{position:fixed;inset:0 0 auto 0;z-index:50;transition:.4s}
.header__inner{display:flex;justify-content:space-between;align-items:center;height:84px}
.logo{font-family:var(--serif);font-size:1.6rem;letter-spacing:.18em;font-weight:600}
.nav{display:flex;gap:2.4rem}
.nav a{font-size:.75rem;letter-spacing:.24em;text-transform:uppercase;font-weight:600;position:relative;padding:.3em 0}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:currentColor;transition:.35s}
.nav a:hover::after,.nav a.active::after{width:100%}
.header--dark{color:var(--cream)}
.header.scrolled{background:rgba(243,238,231,.92);backdrop-filter:blur(10px);color:var(--ink);box-shadow:0 1px 0 var(--line)}
.burger{display:none;background:none;border:0;width:34px;height:20px;position:relative;cursor:pointer;color:inherit}
.burger span{position:absolute;left:0;width:100%;height:1.5px;background:currentColor;transition:.3s}
.burger span:nth-child(1){top:2px}.burger span:nth-child(2){bottom:2px}
.nav-open .burger span:nth-child(1){top:9px;transform:rotate(45deg)}
.nav-open .burger span:nth-child(2){bottom:9px;transform:rotate(-45deg)}

/* Hero accueil */
.hero{position:relative;height:100vh;min-height:640px;color:var(--cream);overflow:hidden}
.hero__img{position:absolute;inset:0}
.hero__img img{transform:scale(1.06);animation:zoom 14s ease-out forwards}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.35) 0%,rgba(0,0,0,.05) 40%,rgba(0,0,0,.6) 100%)}
.hero__content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:9vh}
.hero h1{font-size:clamp(3.6rem,13vw,12rem);letter-spacing:.02em;line-height:.88}
.hero h1 em{color:var(--cream);font-weight:400}
.hero__bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-top:2.4rem;flex-wrap:wrap}
.hero__tag{max-width:420px;color:rgba(243,238,231,.88);font-size:1.02rem}
.hero .eyebrow{color:var(--cream);opacity:.85;margin-bottom:1.4rem}
@keyframes zoom{to{transform:scale(1)}}

/* Bandeau défilant */
.marquee{background:var(--ink);color:var(--cream);overflow:hidden;padding:1.1rem 0;white-space:nowrap}
.marquee__track{display:inline-flex;animation:scroll 28s linear infinite}
.marquee span{font-family:var(--serif);font-size:1.7rem;font-style:italic;padding:0 1.6rem}
.marquee span.dot{color:var(--accent);font-style:normal}
@keyframes scroll{to{transform:translateX(-50%)}}

/* Sections */
section{padding:clamp(80px,12vw,160px) 0}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,110px);align-items:center}
.split__media{aspect-ratio:4/5;overflow:hidden;position:relative}
.split__media .badge{position:absolute;bottom:24px;left:24px;background:var(--cream);padding:.8rem 1.2rem;font-family:var(--serif);font-style:italic;font-size:1.15rem}
.split__text h2{margin:1rem 0 1.8rem}
.split__text p+p{margin-top:1rem}
.split__text .btn{margin-top:2.4rem}

/* Univers */
.universes{background:var(--sand)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:3.5rem;flex-wrap:wrap}
.section-head p{max-width:380px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{position:relative;aspect-ratio:3/4;overflow:hidden;color:var(--cream)}
.card img{transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.card:hover img{transform:scale(1.07)}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.65))}
.card__label{position:absolute;z-index:2;left:22px;right:22px;bottom:22px;display:flex;justify-content:space-between;align-items:flex-end}
.card__label h3{font-size:2rem}
.card__label small{font-size:.7rem;letter-spacing:.24em;text-transform:uppercase;opacity:.8}

/* Contact */
.contact{background:var(--ink);color:var(--cream)}
.contact p{color:rgba(243,238,231,.72)}
.contact .split{align-items:start}
.contact h2{margin:1rem 0 1.6rem}
.contact__info{margin-top:2.6rem;display:grid;gap:1.4rem}
.contact__info small{display:block;font-size:.68rem;letter-spacing:.26em;text-transform:uppercase;color:rgba(243,238,231,.5);margin-bottom:.2rem}
.contact__info a{font-family:var(--serif);font-size:1.5rem}
.contact__info a:hover{color:#d9a59f}
.form{display:grid;gap:1.6rem}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.form label{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;color:rgba(243,238,231,.55)}
.form input,.form select,.form textarea{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(243,238,231,.3);color:var(--cream);font:inherit;padding:.8rem 0;outline:none;transition:.3s}
.form select option{color:var(--ink)}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--cream)}
.form textarea{resize:vertical;min-height:120px}
.form .btn{justify-self:start;margin-top:.6rem}

/* Réseaux sociaux */
.socials{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2.6rem}
.socials a{border:1px solid currentColor;padding:.6em 1.2em;border-radius:40px;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;transition:.3s;opacity:.9}
.socials a:hover{background:var(--cream);color:var(--ink);border-color:var(--cream)}
.footer .socials a:hover{background:var(--ink);color:var(--cream);border-color:var(--ink)}

/* Footer */
.footer{padding:70px 0 34px;border-top:1px solid var(--line)}
.footer__top{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap}
.footer__brand{font-family:var(--serif);font-size:clamp(3rem,9vw,7rem);line-height:.9;letter-spacing:.04em}
.footer .socials{margin-top:0}
.footer__bottom{display:flex;justify-content:space-between;margin-top:3rem;padding-top:1.4rem;border-top:1px solid var(--line);font-size:.78rem;color:var(--muted);flex-wrap:wrap;gap:1rem}

/* En-tête de page interne */
.page-hero{padding:190px 0 70px}
.page-hero h1{font-size:clamp(3.4rem,10vw,8.5rem);margin-top:1rem}
.page-hero p{max-width:520px;margin-top:1.6rem;font-size:1.08rem}

/* Portfolio */
.filters{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:3rem;border-bottom:1px solid var(--line);padding-bottom:1.6rem}
.filter{background:none;border:1px solid var(--line);padding:.7em 1.4em;border-radius:40px;font:600 .72rem var(--sans);letter-spacing:.2em;text-transform:uppercase;cursor:pointer;transition:.3s;color:var(--ink)}
.filter:hover{border-color:var(--ink)}
.filter.active{background:var(--ink);color:var(--cream);border-color:var(--ink)}
.gallery{columns:3 320px;column-gap:20px}
.gallery__item{break-inside:avoid;margin-bottom:20px;cursor:zoom-in;position:relative;overflow:hidden;transition:opacity .4s}
.gallery__item img{height:auto;transition:transform 1s cubic-bezier(.2,.7,.2,1)}
.gallery__item:hover img{transform:scale(1.04)}
.gallery__item figcaption{position:absolute;inset:auto 0 0 0;padding:20px;color:var(--cream);background:linear-gradient(180deg,transparent,rgba(0,0,0,.65));opacity:0;transform:translateY(10px);transition:.4s}
.gallery__item:hover figcaption{opacity:1;transform:none}
.gallery__item figcaption strong{display:block;font-family:var(--serif);font-size:1.5rem;font-weight:500}
.gallery__item figcaption span{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase}
.gallery__item.hidden{display:none}

/* Lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(15,13,13,.95);display:none;align-items:center;justify-content:center;flex-direction:column;padding:40px}
.lightbox.open{display:flex}
.lightbox img{max-width:min(90vw,900px);max-height:78vh;width:auto;height:auto;object-fit:contain}
.lightbox__cap{color:var(--cream);font-family:var(--serif);font-size:1.4rem;margin-top:1rem;font-style:italic}
.lightbox button{position:absolute;background:none;border:0;color:var(--cream);font-size:2.2rem;cursor:pointer;padding:12px;font-family:var(--serif)}
.lb-close{top:18px;right:26px}
.lb-prev{left:18px;top:50%;transform:translateY(-50%)}
.lb-next{right:18px;top:50%;transform:translateY(-50%)}

/* À propos */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,56px);border-top:1px solid var(--line);padding-top:3rem}
.values h3{font-size:2rem;margin:.6rem 0 1rem}
.values .num{font-family:var(--serif);font-style:italic;color:var(--accent);font-size:1.2rem}
.process{background:var(--sand)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:3.5rem;counter-reset:s}
.step{background:var(--cream);padding:2.2rem 1.8rem;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--serif);font-size:3rem;color:var(--accent);font-style:italic;display:block;margin-bottom:1rem;line-height:1}
.step h3{font-size:1.6rem;margin-bottom:.7rem}
.quote{text-align:center}
.quote blockquote{font-family:var(--serif);font-size:clamp(2rem,4.6vw,3.8rem);line-height:1.15;font-style:italic;max-width:1000px;margin:0 auto}
.quote cite{display:block;margin-top:2rem;font-style:normal;font-size:.75rem;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.cta{background:var(--accent);color:var(--cream);text-align:center}
.cta h2 em{color:var(--cream)}
.cta p{color:rgba(243,238,231,.8);max-width:520px;margin:1.4rem auto 2.4rem}

/* ===== Thème Madagascar ===== */
button.btn{background:transparent;cursor:pointer;font-family:var(--sans)}
body::before{content:"";position:fixed;top:0;left:0;right:0;height:5px;z-index:70;background:linear-gradient(90deg,var(--accent) 0 33%,var(--sun) 33% 66%,var(--green) 66%)}
.btn{border-radius:40px}
.btn--fill,.btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn--light:hover{background:var(--sun);border-color:var(--sun);color:var(--ink)}
.hero::after{background:linear-gradient(180deg,rgba(27,42,34,.35) 0%,rgba(224,74,44,.08) 45%,rgba(27,42,34,.7) 100%)}
.hero h1 em{color:var(--sun)}
.hero .eyebrow{color:var(--sun);opacity:1}
.marquee{background:var(--accent)}
.marquee span.dot{color:var(--sun)}
.split__media,.card,.step,.gallery__item{border-radius:22px}
.split__media .badge{border-radius:40px;background:var(--sun);color:var(--ink)}
.universes{background:var(--sand)}
.card::after{background:linear-gradient(180deg,transparent 40%,var(--c,rgba(0,0,0,.6)))}
.cards .card:nth-child(1){--c:rgba(224,74,44,.85)}
.cards .card:nth-child(2){--c:rgba(17,166,156,.85)}
.cards .card:nth-child(3){--c:rgba(232,70,127,.85)}
.cards .card:nth-child(4){--c:rgba(31,122,77,.88)}
.contact{background:var(--green)}
.contact .eyebrow,.contact h2 em{color:var(--sun)!important}
.contact__info a:hover{color:var(--sun)}
.socials a{border-radius:40px}
.contact .socials a:hover{background:var(--sun);border-color:var(--sun);color:var(--ink)}
.footer .socials a:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.filter.active{background:var(--accent);border-color:var(--accent);color:#fff}
.filter:hover{border-color:var(--accent);color:var(--accent)}
.filter.active:hover{color:#fff}
.gallery__item figcaption{background:linear-gradient(180deg,transparent,rgba(224,74,44,.85))}
.values .num{color:var(--lagoon)}
.values>div:nth-child(2) .num{color:var(--pink)}
.values>div:nth-child(3) .num{color:var(--green)}
.process{background:var(--sand)}
.step:nth-child(1)::before{color:var(--accent)}
.step:nth-child(2)::before{color:var(--lagoon)}
.step:nth-child(3)::before{color:var(--pink)}
.step:nth-child(4)::before{color:var(--green)}
.quote blockquote{color:var(--green)}
.cta{background:var(--lagoon)}
.cta h2 em{color:var(--sun)}
.footer__brand em{color:var(--accent)!important}
.lightbox{background:rgba(27,42,34,.96)}
.nav-open .nav{background:var(--green)}
@media (max-width:760px){.nav{background:var(--green)}}

/* Apparition au scroll */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s ease,transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:960px){
  .split{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .values{grid-template-columns:1fr}
}
@media (max-width:760px){
  .burger{display:block;z-index:60}
  .nav{position:fixed;inset:0;background:var(--ink);color:var(--cream);flex-direction:column;justify-content:center;align-items:center;gap:2rem;opacity:0;pointer-events:none;transition:.4s}
  .nav a{font-family:var(--serif);font-size:2.4rem;letter-spacing:.04em;text-transform:none;font-weight:500}
  .nav-open .nav{opacity:1;pointer-events:auto}
  .nav-open .header{color:var(--cream);background:transparent;box-shadow:none}
  .form .row{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}