/* ============ RENÉSSENS — tokens DA validée (GATE 2) ============ */
:root{
  --craie:#F2EDE2; --pierre:#E2D9C6; --ardoise:#3A424D; --encre:#1A1F27;
  --laiton:#9A7B44; --laiton-clair:#C4A567;
  --nuit:#0D1220; --nuit-2:#161D30; --neon:#B57BEF; --ivoire-nuit:#EDE6D6;
  --serif:"Didot","Bodoni 72","Playfair Display",Georgia,serif;
  --sans:"Avenir Next","Avenir","Futura",-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--craie);color:var(--encre);font-family:var(--sans);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.eyebrow{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--laiton);font-weight:600}

.grain{position:relative}
.grain::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E")}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .4s,box-shadow .4s}
.nav.solid{background:rgba(242,237,226,.92);backdrop-filter:blur(10px);box-shadow:0 1px 0 rgba(26,31,39,.08)}
.nav-inner{max-width:1080px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;gap:24px}
.nav-brand{font-family:var(--serif);font-size:22px;color:var(--encre);text-decoration:none;letter-spacing:.03em}
.nav-links{margin-left:auto;display:flex;gap:26px;align-items:center}
.nav-links a{color:var(--encre);text-decoration:none;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:500;
  border-bottom:1px solid transparent;transition:border-color .3s,color .3s;padding-bottom:2px}
.nav-links a:hover{border-color:var(--laiton);color:var(--laiton)}
.nav-links a.nav-cta{border:1px solid var(--laiton);color:var(--laiton);padding:7px 16px;border-radius:2px}
.nav-links a.nav-cta:hover{background:var(--laiton);color:var(--craie)}
.nav-burger{display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer}
.nav-burger span{display:block;width:24px;height:2px;background:var(--encre);margin:6px 0;transition:transform .3s}
@media(max-width:860px){
  .nav-burger{display:block}
  .nav-links{position:fixed;inset:0;background:var(--craie);flex-direction:column;justify-content:center;gap:30px;
    transform:translateY(-100%);transition:transform .45s cubic-bezier(.2,.6,.2,1)}
  .nav-links.open{transform:none}
  .nav-links a{font-size:16px}
  .nav.menu-open .nav-burger span:first-child{transform:translateY(4px) rotate(45deg)}
  .nav.menu-open .nav-burger span:last-child{transform:translateY(-4px) rotate(-45deg)}
}

/* ============ HÉRO ============ */
.hero{padding:140px 24px 40px;text-align:center;max-width:1080px;margin:0 auto}
.hero .eyebrow{display:block;margin-bottom:30px}
.hero-title{font-family:var(--serif);font-weight:400;font-size:clamp(60px,10vw,124px);line-height:1;margin:0;letter-spacing:.02em}
.hero-sub{font-size:13px;letter-spacing:.42em;text-transform:uppercase;color:var(--ardoise);margin:22px 0 0;font-weight:500}
.hero-concept{font-family:var(--serif);font-style:italic;font-size:clamp(19px,2.4vw,25px);color:var(--ardoise);margin:30px auto 44px;max-width:34ch}
.hero-frame{border:1px solid rgba(26,31,39,.16);padding:14px;background:#FBF8F1;
  box-shadow:0 24px 60px -32px rgba(26,31,39,.35);text-align:left}
.hero-legend{display:flex;justify-content:space-between;gap:16px;padding-top:12px;font-size:12px;color:var(--ardoise)}
.hero-legend i{font-family:var(--serif);font-size:14px}
.scroll-cue{display:inline-block;margin-top:44px;color:var(--laiton);text-decoration:none;font-size:22px;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ============ SECTIONS ============ */
section.sec{padding:84px 0}
.manifeste{padding:90px 24px 30px;text-align:center}
.manifeste-txt{font-family:var(--serif);font-size:clamp(21px,2.8vw,28px);line-height:1.55;max-width:44ch;margin:0 auto;text-wrap:balance}
.sec-head{display:flex;align-items:baseline;gap:18px;border-bottom:1px solid rgba(58,66,77,.22);padding-bottom:14px;margin-bottom:40px}
.sec-head h2{font-family:var(--serif);font-weight:400;font-size:32px;margin:0}
.sec-head .eyebrow{margin-left:auto}

/* figures */
figure{margin:0;position:relative;overflow:hidden;border-radius:2px;background:var(--pierre)}
figure img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.6,.2,1)}
figure:hover img{transform:scale(1.035)}
figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;font-size:12px;letter-spacing:.06em;color:#fff;
  background:linear-gradient(transparent,rgba(13,18,32,.72));opacity:0;transform:translateY(6px);transition:opacity .45s,transform .45s}
figure:hover figcaption{opacity:1;transform:none}

/* le château */
.split{display:grid;grid-template-columns:5fr 4fr;gap:48px;align-items:center}
.split figure{aspect-ratio:4/3}
.split-txt h3{font-family:var(--serif);font-weight:400;font-size:clamp(28px,3.4vw,36px);line-height:1.2;margin:0 0 16px;text-wrap:balance}
.split-txt p{max-width:52ch}
.split-txt em{color:var(--laiton);font-family:var(--serif)}
@media(max-width:860px){.split{grid-template-columns:1fr}}

/* mosaïque espaces */
.mosaic{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:120px;gap:14px}
.mosaic figure:nth-child(1){grid-column:span 4;grid-row:span 3}
.mosaic figure:nth-child(2){grid-column:span 2;grid-row:span 3}
.mosaic figure:nth-child(3){grid-column:span 2;grid-row:span 3}
.mosaic figure:nth-child(4){grid-column:span 2;grid-row:span 3}
.mosaic figure:nth-child(5){grid-column:span 2;grid-row:span 3}
@media(max-width:760px){.mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:150px}
  .mosaic figure{grid-column:span 2 !important;grid-row:span 2 !important}}

/* bascule */
.dusk{background:linear-gradient(var(--craie) 0%,#C9BBA4 18%,#6E6377 46%,#2A2B44 72%,var(--nuit) 100%);
  padding:130px 24px;text-align:center}
.dusk p{font-family:var(--serif);font-style:italic;font-size:clamp(22px,3vw,30px);color:#F5EFE2;margin:0;
  text-shadow:0 2px 24px rgba(13,18,32,.5)}

/* nuit */
.night{background:var(--nuit);color:var(--ivoire-nuit)}
.night .eyebrow{color:var(--laiton-clair)}
.night-title{font-family:var(--serif);font-weight:400;font-size:clamp(36px,5.2vw,56px);margin:14px 0 12px;line-height:1.12}
.night-title .neon{color:var(--neon);text-shadow:0 0 26px rgba(181,123,239,.55),0 0 60px rgba(181,123,239,.28)}
.night-lede{max-width:56ch;color:#B9B2A2}
.feature{display:grid;grid-template-columns:4fr 3fr;gap:48px;align-items:center;margin-top:54px}
.feature figure{aspect-ratio:3/4;max-width:440px;box-shadow:0 30px 80px -30px rgba(0,0,0,.8)}
.feature h3{font-family:var(--serif);font-weight:400;font-size:30px;margin:0 0 14px;color:var(--laiton-clair)}
.feature p{color:#B9B2A2;max-width:48ch}
@media(max-width:860px){.feature{grid-template-columns:1fr}}
.night-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:56px}
.night-grid figure{aspect-ratio:3/4}
@media(max-width:760px){.night-grid{grid-template-columns:1fr}}

/* expériences */
.xp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.xp{border:1px solid rgba(58,66,77,.18);border-radius:2px;background:#FBF8F1;padding:30px 26px}
.xp h3{font-family:var(--serif);font-weight:400;font-size:23px;margin:0 0 12px;text-wrap:balance}
.xp p{font-size:14.5px;color:#3d4450;margin:0 0 18px}
.xp a{color:var(--laiton);text-decoration:none;font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:600}
.xp a:hover{text-decoration:underline}
.xp-note{margin-top:22px;font-size:13px;color:#6b7280;font-style:italic}
@media(max-width:860px){.xp-grid{grid-template-columns:1fr}}

/* galerie */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filter{background:none;border:1px solid rgba(58,66,77,.3);color:var(--ardoise);border-radius:2px;
  padding:8px 18px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;cursor:pointer;
  transition:all .3s;font-family:var(--sans)}
.filter:hover{border-color:var(--laiton);color:var(--laiton)}
.filter.on{background:var(--encre);border-color:var(--encre);color:var(--craie)}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gal figure{aspect-ratio:3/4;cursor:zoom-in}
.gal figure.wide{grid-column:span 2;aspect-ratio:auto}
.gal figure.hide{display:none}
@media(max-width:760px){.gal{grid-template-columns:1fr 1fr}.gal figure.wide{grid-column:span 2}}

/* infos */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.info-grid h4{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--laiton);margin:0 0 10px;font-weight:600}
.info-grid p{margin:0;font-size:14.5px;color:#3d4450}
@media(max-width:760px){.info-grid{grid-template-columns:1fr}}

/* contact */
.contact-wrap{max-width:760px}
.cform{margin-top:36px;display:flex;flex-direction:column;gap:18px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:640px){.frow{grid-template-columns:1fr}}
.cform label{display:flex;flex-direction:column;gap:7px;font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--laiton-clair);font-weight:600}
.cform input,.cform select,.cform textarea{background:var(--nuit-2);border:1px solid rgba(237,230,214,.18);
  border-radius:2px;color:var(--ivoire-nuit);padding:13px 14px;font-family:var(--sans);font-size:15px;letter-spacing:normal;text-transform:none}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:none;border-color:var(--laiton-clair)}
.btn{background:var(--laiton-clair);color:var(--nuit);border:0;border-radius:2px;padding:15px 30px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;cursor:pointer;
  transition:transform .25s,box-shadow .25s;font-family:var(--sans);align-self:flex-start}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(196,165,103,.6)}
.form-note{font-size:12.5px;color:#8a8474;font-style:italic;margin:0}
.form-ok{color:var(--laiton-clair);font-size:14.5px;border-left:2px solid var(--laiton-clair);padding-left:14px;margin:0}

/* footer */
footer{background:var(--nuit);color:#8a8474;border-top:1px solid rgba(237,230,214,.1);padding:38px 0 54px;font-size:12.5px}
footer b{color:var(--ivoire-nuit);font-family:var(--serif);font-weight:400;font-size:15px;letter-spacing:.02em}
footer p{margin:4px 0}
footer a,.form-note a{color:#B9B2A2;text-decoration:underline;text-underline-offset:3px}
footer a:hover,.form-note a:hover{color:var(--laiton-clair)}

/* modal légal */
.modal{position:fixed;inset:0;z-index:110;background:rgba(13,18,32,.8);display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal-box{position:relative;background:var(--craie);color:var(--encre);max-width:640px;max-height:82vh;overflow-y:auto;
  border-radius:2px;padding:38px 40px;box-shadow:0 40px 100px rgba(0,0,0,.5)}
.modal-box h3{font-family:var(--serif);font-weight:400;font-size:26px;margin:26px 0 14px}
.modal-box section:first-of-type h3{margin-top:0}
.modal-box p{font-size:14px;color:#3d4450;margin:0 0 12px}
.modal-box b{color:var(--encre)}
.modal-x{position:absolute;top:12px;right:18px;background:none;border:0;font-size:32px;cursor:pointer;
  color:var(--ardoise);font-family:var(--serif)}
.modal-x:hover{color:var(--laiton)}
@media(max-width:640px){.modal-box{padding:28px 22px}}

/* état bouton envoi */
.btn[disabled]{opacity:.6;cursor:wait;transform:none}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(13,18,32,.96);display:flex;align-items:center;justify-content:center}
.lb[hidden]{display:none}
.lb img{max-width:88vw;max-height:82vh;object-fit:contain;box-shadow:0 30px 90px rgba(0,0,0,.6)}
.lb button{position:absolute;background:none;border:0;color:var(--ivoire-nuit);cursor:pointer;font-family:var(--serif)}
.lb-x{top:18px;right:26px;font-size:40px}
.lb-p,.lb-n{top:50%;transform:translateY(-50%);font-size:56px;padding:20px}
.lb-p{left:14px}.lb-n{right:14px}
.lb button:hover{color:var(--laiton-clair)}
.lb-cap{position:absolute;bottom:22px;left:0;right:0;text-align:center;color:#B9B2A2;font-size:13px;letter-spacing:.06em}

/* reveals */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.6,.2,1)}
.rv.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.22s}.d3{transition-delay:.34s}.d4{transition-delay:.5s}

@media(prefers-reduced-motion:reduce){
  .rv,.d1,.d2,.d3,.d4{opacity:1;transform:none;transition:none}
  figure img,figcaption,.filter,.btn{transition:none}
  .scroll-cue{animation:none}
  html{scroll-behavior:auto}
}