:root{
  --pine:#141C10; --forest:#2C3B22; --forest-deep:#1F2A18; --sage:#5C6650;
  --gold:#D9A544; --gold-soft:rgba(217,165,68,.16);
  --stone:#F5F3EC; --paper:#FBFAF6; --ink:#20261B;
  --line:rgba(32,38,27,.13); --line-dark:rgba(255,255,255,.2);
  --cream:#F4F1E6;
  box-sizing:border-box; padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
html{scroll-padding-top:96px;}
*,*::before,*::after{box-sizing:inherit; margin:0; padding:0;}
body{font-family:'Manrope',ui-sans-serif,system-ui,sans-serif; background:var(--stone); color:var(--ink); line-height:1.6; -webkit-font-smoothing:antialiased; overflow-x:hidden; display:flex; flex-direction:column; min-height:calc(100svh - env(safe-area-inset-top,0px) - env(safe-area-inset-bottom,0px));}
img{max-width:100%; height:auto; display:block;}
h1,h2,h3,.serif{font-family:'Fraunces',ui-serif,Georgia,serif; font-weight:500; letter-spacing:-.01em;}
a{color:inherit; text-decoration:none;}
.wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
@media(max-width:780px){.wrap{padding:0 22px;}}
.page{display:none;}
main{flex:1; display:flex; flex-direction:column;}
.page.active{flex:1; display:flex; flex-direction:column; animation:pageIn .5s ease both;}
.page:not(#accueil)>.block{flex:1;}
@keyframes pageIn{from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:none;}}

/* header */
header{position:fixed; top:env(safe-area-inset-top,0px); left:0; right:0; z-index:50; padding:18px 0; transition:background .3s ease, box-shadow .3s ease, padding .3s ease;}
header .wrap{display:flex; align-items:center; justify-content:space-between;}
header.scrolled{background:rgba(20,28,16,.82); backdrop-filter:blur(14px); box-shadow:0 8px 24px rgba(0,0,0,.18); padding:12px 0;}
header:not(.scrolled){background:linear-gradient(to bottom, rgba(20,28,16,.55), rgba(20,28,16,0));}
.brand{display:flex; align-items:center; gap:12px;}
.brand img{height:44px; width:auto;}
.brand span{color:var(--cream); font-family:'Fraunces',serif; font-size:1.05rem; font-weight:500; letter-spacing:.02em;}
nav{position:relative; display:flex; gap:30px;}
nav a{font-size:.82rem; letter-spacing:.09em; color:rgba(244,241,230,.78); padding-bottom:6px; transition:color .2s;}
nav a:hover,nav a.active{color:var(--cream);}
.nav-ind{position:absolute; bottom:0; height:2px; background:var(--gold); transition:left .3s ease, width .3s ease;}
.tel{font-size:.86rem; font-weight:700; color:var(--gold); white-space:nowrap;}
@media(max-width:860px){.brand span{display:none;}}

/* hero */
.hero{position:relative; min-height:100svh; display:flex; align-items:flex-end; color:var(--cream); overflow:hidden;}
.hero-bg{position:absolute; inset:0; background-size:cover; background-position:center; animation:kenburns 22s ease-in-out infinite alternate;}
.hero-scrim{position:absolute; inset:0; background:linear-gradient(180deg, rgba(20,28,16,.35) 0%, rgba(20,28,16,.25) 40%, rgba(15,20,12,.88) 100%);}
@keyframes kenburns{from{transform:scale(1);} to{transform:scale(1.09);}}
.hero-content{position:relative; padding:0 0 90px;}
.hero h1{font-size:clamp(2.4rem,6vw,4.4rem); line-height:1.04; opacity:0; animation:fadeUp .9s ease .15s forwards;}
.hero .tagline{margin-top:16px; font-size:.86rem; letter-spacing:.16em; color:var(--gold); font-weight:600; opacity:0; animation:fadeUp .9s ease .35s forwards;}
.hero .lines{margin-top:26px; display:flex; flex-direction:column; gap:6px; font-size:1.08rem; color:rgba(244,241,230,.88); opacity:0; animation:fadeUp .9s ease .5s forwards;}
.hero .btn{margin-top:38px; opacity:0; animation:fadeUp .9s ease .68s forwards;}
@keyframes fadeUp{from{opacity:0; transform:translateY(22px);} to{opacity:1; transform:none;}}
.scrolldown{position:absolute; bottom:26px; left:50%; transform:translateX(-50%); width:1px; height:34px; background:linear-gradient(var(--gold),transparent); opacity:.7;}

.btn{display:inline-flex; align-items:center; gap:10px; background:var(--gold); color:var(--pine); font-weight:700; font-size:.92rem; padding:15px 26px; border-radius:2px; border:none; cursor:pointer; transition:transform .2s ease, background .2s ease;}
.btn:hover{background:#E7B860; transform:translateY(-2px);}
.btn-line{background:transparent; border:1px solid var(--line-dark); color:var(--cream);}
.btn-line:hover{border-color:var(--gold); background:transparent;}

/* reveal */
.reveal{opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:none;}

/* section shells */
section.block{padding:100px 0;}
@media(max-width:780px){section.block{padding:68px 0;}}
.block.dark{background:var(--pine); color:var(--cream);}
.block.forest{background:var(--forest); color:var(--cream);}
.head-row{display:flex; align-items:baseline; gap:22px; flex-wrap:wrap; margin-bottom:48px;}
.head-row h2{font-size:clamp(1.8rem,3.2vw,2.5rem);}
.head-row p{font-size:1.02rem; color:var(--sage); max-width:44ch;}
.block.dark .head-row p, .block.forest .head-row p{color:rgba(244,241,230,.72);}

/* accueil teaser */
.teaser-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:22px;}
@media(max-width:860px){.teaser-grid{grid-template-columns:repeat(2,1fr);}}
.teaser{padding:26px 22px; border:1px solid var(--line); transition:border-color .25s, transform .25s;}
.teaser:hover{border-color:var(--gold); transform:translateY(-4px);}
.teaser svg{width:26px; height:26px; color:var(--forest); margin-bottom:16px;}
.teaser h3{font-size:1.02rem; font-weight:600; font-family:'Manrope',sans-serif;}
.quote-band{background:var(--forest); color:var(--cream); padding:80px 0;}
.quote-band blockquote{font-family:'Fraunces',serif; font-style:italic; font-size:clamp(1.3rem,2.6vw,1.9rem); max-width:30ch; line-height:1.4;}
.quote-band a{margin-top:26px; display:inline-block; font-size:.88rem; color:var(--gold); font-weight:600; border-bottom:1px solid var(--gold); padding-bottom:2px;}
.cta-band{padding:90px 0; text-align:left;}
.cta-band h2{font-size:clamp(1.7rem,3.4vw,2.4rem); max-width:16ch; margin-bottom:26px;}

/* services */
.svc-grid{display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line);}
.svc{background:var(--paper); padding:44px 40px;}
.svc svg{width:30px; height:30px; color:var(--gold-deep,var(--gold)); margin-bottom:20px;}
.svc h3{font-size:1.28rem; margin-bottom:10px;}
.svc p{color:var(--sage); max-width:48ch;}
@media(max-width:700px){.svc-grid{grid-template-columns:1fr;}}

/* realisations */
.real-main{border:1px solid var(--line-dark); padding:8px;}
.real-cap{margin-top:16px; font-size:.9rem; color:rgba(244,241,230,.65);}
.real-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px; margin-top:22px;}
@media(max-width:860px){.real-grid{grid-template-columns:repeat(2,1fr);}}
.real-grid figure{overflow:hidden; border:1px solid var(--line-dark); aspect-ratio:3/4; position:relative;}
.real-grid img{width:100%; height:100%; object-fit:cover; transition:transform .5s ease;}
.real-grid figure:hover img{transform:scale(1.06);}
.real-grid figcaption{position:absolute; left:0; right:0; bottom:0; padding:12px 14px; font-size:.8rem; background:linear-gradient(0deg,rgba(0,0,0,.6),transparent); color:var(--cream);}
.frame-ph{border:1px dashed var(--line-dark); display:flex; align-items:center; justify-content:center; text-align:center; padding:20px; aspect-ratio:3/4;}
.frame-ph span{font-size:.82rem; color:rgba(244,241,230,.55);}

/* about */
.about-grid{display:grid; grid-template-columns:.9fr 1.1fr; gap:64px; align-items:start;}
@media(max-width:860px){.about-grid{grid-template-columns:1fr; gap:36px;}}
.about-grid p{color:var(--sage); max-width:44ch;}
.about-grid p+p{margin-top:16px;}
blockquote.pq{font-style:italic; font-weight:400; font-size:clamp(1.3rem,2.4vw,1.7rem); line-height:1.42; border-left:3px solid var(--gold); padding-left:28px;}
.pq cite{display:block; margin-top:18px; font-style:normal; font-family:'Manrope',sans-serif; font-size:.88rem; color:var(--sage); font-weight:700;}
.closing-line{margin-top:56px; padding-top:32px; border-top:1px solid var(--line); font-family:'Fraunces',serif; font-style:italic; font-size:clamp(1.25rem,2.4vw,1.7rem); max-width:26ch; color:var(--forest);}

.about-logo{width:min(300px,80%); height:auto; margin-top:40px;}
.real-note{margin-top:22px; font-size:.95rem; color:rgba(244,241,230,.7);}
.ba-fig{max-width:720px; margin:56px auto 0;}
.ba{position:relative; aspect-ratio:960/905; overflow:hidden; --pos:50%; user-select:none; -webkit-user-select:none;}
.ba-img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none;}
.ba-before{clip-path:inset(0 calc(100% - var(--pos)) 0 0);}
.ba-line{position:absolute; top:0; bottom:0; left:var(--pos); width:2px; margin-left:-1px; background:var(--cream); box-shadow:0 0 12px rgba(0,0,0,.4); pointer-events:none;}
.ba-knob{position:absolute; top:50%; left:var(--pos); width:46px; height:46px; margin:-23px 0 0 -23px; border-radius:50%; background:var(--gold); color:var(--pine); display:flex; align-items:center; justify-content:center; box-shadow:0 4px 16px rgba(0,0,0,.35); pointer-events:none;}
.ba-tag{position:absolute; bottom:14px; padding:6px 12px; font-size:.78rem; font-weight:700; letter-spacing:.08em; background:rgba(20,28,16,.72); color:var(--cream); backdrop-filter:blur(6px); pointer-events:none;}
.ba-l{left:14px;} .ba-r{right:14px;}
.ba-range{position:absolute; inset:0; width:100%; height:100%; margin:0; opacity:0; cursor:ew-resize; touch-action:pan-y; -webkit-appearance:none; appearance:none;}


/* contact */
.contact-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:70px;}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr; gap:44px;}}
.field{margin-bottom:22px;}
.field label{display:block; font-size:.82rem; color:rgba(244,241,230,.6); margin-bottom:8px;}
.field input,.field textarea{width:100%; background:transparent; border:none; border-bottom:1px solid var(--line-dark); color:var(--cream); font-family:inherit; font-size:1rem; padding:8px 2px; resize:vertical;}
.field input:focus,.field textarea:focus{outline:none; border-bottom-color:var(--gold);}
.info-block h3{font-family:'Fraunces',serif; font-size:1.06rem; margin-bottom:12px;}
.info-block p{color:rgba(244,241,230,.68); margin-bottom:24px;}
.info-block a.gold{color:var(--gold); font-weight:700;}

.sent-alert{position:relative; display:flex; gap:14px; align-items:flex-start; margin-bottom:30px; padding:16px 46px 19px 18px; background:rgba(181,215,163,.12); border:1px solid rgba(181,215,163,.4); border-left:3px solid #B5D7A3; color:var(--cream); overflow:hidden; animation:alertIn .45s ease both;}
.sent-alert[hidden]{display:none;}
.sent-alert svg{flex:none; color:#B5D7A3; margin-top:2px;}
.sent-alert strong{display:block; font-weight:700;}
.sent-alert span{font-size:.92rem; color:rgba(244,241,230,.78);}
.sent-close{position:absolute; top:8px; right:10px; background:none; border:none; color:rgba(244,241,230,.6); font-size:1.5rem; line-height:1; cursor:pointer;}
.sent-close:hover{color:var(--cream);}
.sent-bar{position:absolute; left:0; bottom:0; height:2px; width:100%; background:#B5D7A3; transform-origin:left; animation:alertBar 8s linear forwards;}
.sent-alert .ico-err{display:none;}
.sent-alert.error{background:rgba(242,165,142,.12); border-color:rgba(242,165,142,.4); border-left-color:#F2A58E;}
.sent-alert.error .ico-ok{display:none;}
.sent-alert.error .ico-err{display:block; color:#F2A58E;}
.sent-alert.error .sent-bar{display:none;}
@keyframes alertIn{from{opacity:0; transform:translateY(-10px);} to{opacity:1; transform:none;}}
@keyframes alertBar{from{transform:scaleX(1);} to{transform:scaleX(0);}}
.btn:disabled{opacity:.6; cursor:progress; transform:none;}

footer{background:var(--pine); color:rgba(244,241,230,.6); padding:56px 0 30px;}
.foot-top{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; padding-bottom:34px; border-bottom:1px solid var(--line-dark); margin-bottom:22px;}
footer img.flogo{height:64px; width:auto; margin-bottom:14px;}
.foot-nav{display:flex; gap:24px; flex-wrap:wrap; font-size:.86rem;}
.foot-nav a:hover{color:var(--gold);}
.foot-row{display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.8rem;}

:focus-visible{outline:2px solid var(--gold); outline-offset:2px;}
@media(prefers-reduced-motion:reduce){*{animation:none !important; transition:none !important;}}

/* ===== multi-pages ===== */
main{animation:pageIn .5s ease both;}
main>section:last-of-type{flex:1;}
.skip{position:absolute; left:-999px; top:8px; z-index:100;}
.skip:focus{left:12px; background:var(--gold); color:var(--pine); padding:8px 14px; font-weight:700;}
h1{font-family:'Fraunces',ui-serif,Georgia,serif; font-weight:500; letter-spacing:-.01em;}
/* navigation */
.menu-btn{display:none;}
.has-sub{position:relative;}
.sub-toggle{background:none; border:none; font:inherit; font-size:.82rem; letter-spacing:.09em; color:rgba(244,241,230,.78); padding:0 0 6px; cursor:pointer; display:inline-flex; gap:8px; align-items:center; transition:color .2s;}
.sub-toggle::after{content:""; width:6px; height:6px; border-right:1.5px solid currentColor; border-bottom:1.5px solid currentColor; transform:rotate(45deg) translateY(-2px);}
.sub-toggle:hover,.has-sub:focus-within .sub-toggle,.sub-toggle.is-current{color:var(--cream);}
.sub{position:absolute; top:100%; left:-20px; min-width:300px; padding:16px 0 8px; opacity:0; visibility:hidden; transform:translateY(6px); transition:opacity .2s, transform .2s, visibility .2s; background:rgba(20,28,16,.97); backdrop-filter:blur(14px); border:1px solid var(--line-dark); box-shadow:0 18px 40px rgba(0,0,0,.35);}
.has-sub:hover .sub,.has-sub:focus-within .sub,.has-sub.open .sub{opacity:1; visibility:visible; transform:none;}
.sub a{display:block; padding:11px 22px; font-size:.86rem; letter-spacing:.02em;}
.sub a:hover,.sub a[aria-current="page"]{background:rgba(255,255,255,.05); color:var(--gold);}
#nav>a[aria-current="page"]{color:var(--cream); border-bottom:2px solid var(--gold);}
@media(max-width:900px){
  .menu-btn{display:inline-flex; flex-direction:column; gap:6px; background:none; border:0; padding:10px; margin-left:auto; margin-right:6px; cursor:pointer;}
  .menu-btn span{width:24px; height:2px; background:var(--cream); transition:transform .25s;}
  .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);}
  #nav{display:none; position:absolute; top:100%; left:0; right:0; flex-direction:column; gap:0; padding:6px 22px 22px; background:rgba(20,28,16,.98); backdrop-filter:blur(14px); border-top:1px solid var(--line-dark); max-height:calc(100svh - 70px); overflow:auto;}
  #nav.open{display:flex;}
  #nav>a,.sub-toggle{padding:15px 0; border-bottom:1px solid var(--line-dark); width:100%; text-align:left; font-size:.9rem;}
  #nav>a[aria-current="page"]{border-bottom:1px solid var(--line-dark); color:var(--gold);}
  .sub-toggle::after{display:none;}
  .sub{position:static; opacity:1; visibility:visible; transform:none; background:none; border:none; box-shadow:none; padding:0 0 0 14px; min-width:0; backdrop-filter:none;}
  .sub a{padding:13px 0; border-bottom:1px solid var(--line-dark);}
}
/* bandeau de page + fil d'Ariane */
.page-hero{background:var(--pine); color:var(--cream); padding:150px 0 64px;}
.page-hero h1{font-size:clamp(2rem,4.4vw,3.1rem); line-height:1.1; max-width:22ch;}
.page-hero .lead{margin-top:18px; max-width:58ch; color:rgba(244,241,230,.78); font-size:1.08rem;}
.crumbs{font-size:.84rem; color:rgba(244,241,230,.6); margin-bottom:22px;}
.crumbs a{color:rgba(244,241,230,.75);} .crumbs a:hover{color:var(--gold);}
.crumbs span{margin:0 9px; opacity:.5;}
/* contenu */
.split{display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;}
.split.rev>:first-child{order:2;}
@media(max-width:860px){.split{grid-template-columns:1fr; gap:32px;} .split.rev>:first-child{order:0;}}
.split h2{font-size:clamp(1.6rem,2.8vw,2.2rem); margin-bottom:18px;}
.prose{max-width:62ch;}
.prose p{color:var(--sage);} .prose p+p{margin-top:14px;}
.block.dark .prose p{color:rgba(244,241,230,.75);}
.prose a{color:var(--forest); border-bottom:1px solid var(--gold);}
.block.dark .prose a{color:var(--cream);}
.ticks{list-style:none; margin-top:20px;}
.ticks li{position:relative; padding:11px 0 11px 28px; border-top:1px solid var(--line); color:var(--sage);}
.ticks li::before{content:""; position:absolute; left:0; top:21px; width:13px; height:2px; background:var(--gold);}
.ticks li:last-child{border-bottom:1px solid var(--line);}
.fig{border:1px solid var(--line); padding:8px; background:var(--paper);}
.fig figcaption{margin-top:12px; font-size:.9rem; color:var(--sage); padding:0 4px 4px;}
.block.dark .fig{background:none; border-color:var(--line-dark);}
.block.dark .fig figcaption{color:rgba(244,241,230,.65);}
.btn-line{display:inline-flex; margin-top:28px;}
.teaser p{color:var(--sage); font-size:.92rem; margin-top:8px;}
.teaser .more{display:inline-block; margin-top:16px; font-size:.84rem; font-weight:700; color:var(--forest);}
.real-sub{font-size:clamp(1.3rem,2.4vw,1.7rem); margin:0 0 20px;}
.real-sub.second{margin-top:64px;}
.contact-grid h1,.head-row h1{font-size:clamp(1.8rem,3.2vw,2.5rem);}
.head-row h1{margin:0;}
.cta-band h2{margin-bottom:26px;}
.foot-brand{max-width:34ch;}
.foot-cols{display:flex; gap:64px; flex-wrap:wrap;}
.foot-col h3{font-family:'Manrope',sans-serif; font-size:.8rem; letter-spacing:.08em; color:var(--gold); font-weight:700; margin-bottom:12px;}
.foot-col a{display:block; padding:4px 0; font-size:.88rem;}
.foot-col a:hover{color:var(--gold);}
footer address{font-style:normal; font-size:.88rem; line-height:1.75;}