/* ============================================================
   INTERCAVES VILLEREST — Design System (Hi-Fi)
   Palette dérivée de la charte (Vert Profond, Rose, Bistre, Blanc Perlé)
   Type: Cormorant Garamond (display) + Jost (géométrique, brand)
   ============================================================ */

:root{
  /* ---- brand-derived palette ---- */
  --green:#505949;          /* Vert Profond (charte) */
  --green-soft:#646d59;
  --green-deep:#363d33;
  --green-darkest:#22271f;
  --green-night:#191d17;
  --rose:#d6525c;           /* Rose (charte) */
  --rose-deep:#bd434c;
  --rose-glow:#e4868d;
  --taupe:#999287;          /* Bistre (charte) */
  --taupe-deep:#7c766b;
  --taupe-light:#b9b2a5;
  --pearl:#e1dcd2;          /* Blanc Perlé (charte) */
  --cream:#f5f1e9;
  --cream-2:#efeade;
  --cream-3:#e7e1d3;
  --ink:#23271f;
  --ink-soft:#5b5e52;

  --maxw:1320px;
  --pad:clamp(20px,5vw,72px);
  --promo-h:44px;
  --r:14px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);

  --serif:'Cormorant Garamond', Georgia, serif;
  --sans:'Jost','Century Gothic', system-ui, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%;}
/* elegant keyboard-focus ring (mouse users unaffected) */
:focus-visible{outline:2px solid var(--rose); outline-offset:3px; border-radius:2px;}
a:focus-visible, button:focus-visible, .btn:focus-visible{outline-offset:4px;}
input:focus-visible, textarea:focus-visible, .seg label:focus-within{outline:none;}
body{
  margin:0; background:var(--cream); color:var(--ink);
  font-family:var(--sans); font-size:17px; line-height:1.6;
  font-weight:300; letter-spacing:.01em;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:clip;
}
html{overflow-x:clip;}
img{max-width:100%; display:block;}
a{color:inherit; text-decoration:none;}
::selection{background:var(--rose); color:#fff;}

/* film grain overlay (premium texture) */
body::after{
  content:""; position:fixed; inset:0; z-index:9999; pointer-events:none;
  opacity:.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* scroll progress */
.progress{position:fixed; top:0; left:0; height:2px; width:0; background:var(--rose); z-index:10000; transition:width .1s linear;}

/* ---------- type ---------- */
.eyebrow{
  font-family:var(--sans); font-weight:500; font-size:12px;
  letter-spacing:.32em; text-transform:uppercase; color:var(--rose);
  display:inline-flex; align-items:center; gap:12px;
}
.eyebrow::before{content:""; width:26px; height:1px; background:currentColor; opacity:.6;}
.eyebrow.center::after{content:""; width:26px; height:1px; background:currentColor; opacity:.6;}
.eyebrow.muted{color:var(--taupe-deep);}

h1,h2,h3{font-family:var(--serif); font-weight:400; line-height:1.04; letter-spacing:-.01em; margin:0;}
.display{font-size:clamp(44px,7.4vw,92px); font-weight:300; line-height:1.0;}
.h2{font-size:clamp(34px,5vw,68px); font-weight:300;}
.h3{font-size:clamp(24px,2.4vw,34px);}
.lead{font-family:var(--sans); font-weight:300; font-size:clamp(17px,1.4vw,21px); line-height:1.65; color:var(--ink-soft);}
em,.it{font-style:italic;}
.serif-it{font-family:var(--serif); font-style:italic; font-weight:400;}

/* ---------- layout ---------- */
section{position:relative;}
.wrap{max-width:var(--maxw); margin:0 auto; padding-left:var(--pad); padding-right:var(--pad);}
.section{padding:clamp(72px,11vw,160px) 0;}
.bleed{padding-left:0; padding-right:0;}

.bg-cream{background:var(--cream);}
.bg-cream2{background:var(--cream-2);}
.bg-green{background:var(--green-darkest); color:var(--pearl);}
.bg-green .lead{color:#cdc7b8;}
.bg-green h1,.bg-green h2,.bg-green h3{color:var(--cream);}

/* ---------- buttons ---------- */
.btn{
  --bg:var(--green); --fg:#fff;
  font-family:var(--sans); font-weight:400; font-size:14px; letter-spacing:.12em;
  text-transform:uppercase; color:var(--fg); background:var(--bg); white-space:nowrap;
  padding:16px 30px; border-radius:100px; border:1px solid transparent;
  display:inline-flex; align-items:center; gap:10px; cursor:pointer;
  position:relative; overflow:hidden; transition:transform .5s var(--ease-out), box-shadow .5s var(--ease-out);
  box-shadow:0 1px 0 rgba(255,255,255,.15) inset, 0 12px 30px -12px rgba(34,39,31,.5);
}
.btn span{position:relative; z-index:1;}
.btn::after{content:""; position:absolute; inset:0; background:var(--rose); transform:translateY(101%); transition:transform .55s var(--ease-out); z-index:0;}
.btn:hover{transform:translateY(-2px); box-shadow:0 1px 0 rgba(255,255,255,.2) inset, 0 22px 40px -16px rgba(34,39,31,.6);}
.btn:active{transform:translateY(0); transition-duration:.12s;}
.btn:hover::after{transform:translateY(0);}
.btn.rose{--bg:var(--rose);} .btn.rose::after{background:var(--green);}
.btn.ghost{--bg:transparent; --fg:var(--ink); border-color:rgba(35,39,31,.25); box-shadow:none;}
.btn.ghost::after{background:var(--green);}
.btn.ghost:hover{--fg:#fff; border-color:transparent;}
.btn.on-dark{--fg:var(--cream); border-color:rgba(225,220,210,.3);}
.btn.on-dark::after{background:var(--rose);}
.btn.on-dark.ghost{
  background:linear-gradient(135deg, rgba(255,255,255,.16), rgba(255,255,255,.04));
  backdrop-filter:blur(10px) saturate(1.25); -webkit-backdrop-filter:blur(10px) saturate(1.25);
  border-color:rgba(225,220,210,.34);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28), 0 14px 30px -18px rgba(13,16,9,.5);
  transform:translateZ(0); -webkit-transform:translateZ(0);
  backface-visibility:hidden; -webkit-backface-visibility:hidden;
  isolation:isolate;
}

.link-u{position:relative; display:inline-block; font-family:var(--sans); font-size:14px; letter-spacing:.1em; text-transform:uppercase; white-space:nowrap;}
.link-u::after{content:""; position:absolute; left:0; bottom:-4px; height:1px; width:100%; background:currentColor; transform:scaleX(0); transform-origin:left; transition:transform .5s var(--ease-out);}
.link-u:hover::after{transform:scaleX(1);}

/* ---------- glass (liquid-glass nod) ---------- */
.glass{
  background:linear-gradient(135deg, rgba(255,255,255,.14), rgba(255,255,255,.04));
  backdrop-filter:blur(18px) saturate(1.4); -webkit-backdrop-filter:blur(18px) saturate(1.4);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4), inset 0 -1px 0 rgba(255,255,255,.06), 0 24px 50px -20px rgba(20,24,18,.45);
}
.glass-dark{
  background:linear-gradient(135deg, rgba(34,39,31,.55), rgba(34,39,31,.28));
  backdrop-filter:blur(16px) saturate(1.2); -webkit-backdrop-filter:blur(16px) saturate(1.2);
  border:1px solid rgba(225,220,210,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12), 0 20px 50px -22px rgba(0,0,0,.5);
}

/* ---------- premium image placeholder ---------- */
.ph{
  position:relative; overflow:hidden; background:var(--green-deep);
  border-radius:var(--r); isolation:isolate;
}
.ph::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(120% 90% at 75% 15%, rgba(214,82,92,.18), transparent 55%),
    radial-gradient(130% 100% at 20% 90%, rgba(0,0,0,.45), transparent 60%),
    linear-gradient(150deg, var(--green-soft), var(--green-deep) 55%, var(--green-night));
}
.ph::after{
  content:""; position:absolute; inset:0; opacity:.5; mix-blend-mode:soft-light;
  background-image:repeating-linear-gradient(58deg, rgba(255,255,255,.05) 0 2px, transparent 2px 9px);
}
.ph .ph-label{
  position:absolute; left:18px; bottom:16px; z-index:2;
  font-family:var(--sans); font-size:11px; letter-spacing:.22em; text-transform:uppercase;
  color:rgba(225,220,210,.72); display:flex; align-items:center; gap:9px;
}
.ph .ph-label::before{content:""; width:8px; height:8px; border:1px solid rgba(225,220,210,.6); border-radius:50%;}
.ph.lume::after{}
.ratio{position:relative; width:100%;}
.ratio>img,.ratio>.ph{position:absolute; inset:0; width:100%; height:100%; object-fit:cover;}
.r-43{aspect-ratio:4/3;} .r-32{aspect-ratio:3/2;} .r-11{aspect-ratio:1/1;} .r-34{aspect-ratio:3/4;} .r-23{aspect-ratio:2/3;} .r-169{aspect-ratio:16/9;} .r-916{aspect-ratio:9/16;}

/* ---------- reveal animations ---------- */
[data-rise]{opacity:0; transform:translateY(38px); transition:opacity 1s var(--ease-out), transform 1s var(--ease-out);}
[data-rise].in{opacity:1; transform:none;}
[data-fade]{opacity:0; transition:opacity 1.2s var(--ease-out);}
[data-fade].in{opacity:1;}
[data-clip]{clip-path:inset(0 0 100% 0); opacity:0; transition:clip-path 1.1s var(--ease-out), opacity 1.1s var(--ease-out);}
[data-clip].in{clip-path:inset(0 0 0 0); opacity:1;}
[data-zoom] img,[data-zoom] .ph::before{transition:transform 1.6s var(--ease-out);}
[data-zoom]{overflow:hidden;}
.in [data-stagger]{}
@media (prefers-reduced-motion:reduce){
  [data-rise],[data-fade],[data-clip]{opacity:1 !important; transform:none !important; clip-path:none !important;}
  html{scroll-behavior:auto;}
}

/* word-mask hero lines */
.line-mask{overflow:hidden; display:block; white-space:nowrap;}
.line-mask>span{display:block; transform:translateY(110%); transition:transform 1.1s var(--ease-out);}
.hero-ready .line-mask>span{transform:translateY(0);}