*{margin:0;padding:0;box-sizing:border-box}
:root{--soil:#120c07;--deep:#0b0603;--clay:#C05A28;--saffron:#E8A020;--cream:#F3EAD9;--line:#3a2a1e;--mut:#bfa88d}
html{scroll-behavior:smooth}
body{background:var(--soil);color:var(--cream);font-family:'Space Grotesk',sans-serif;overflow-x:hidden}
img{display:block;max-width:100%}
::selection{background:var(--saffron);color:#000}
.ar{font-family:'Amiri',serif}
.en{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--mut)}
/* ENTREE CENDRE: on efface pour entrer — effet jamais vu dans 01/02/03 */
#ashgate{position:fixed;inset:0;z-index:3000}
#ashgate canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}
#ashgate .under{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:radial-gradient(circle at 50% 70%,#3a1e0c,#0b0603 75%)}
#ashgate .under h1{font-family:Anton;font-size:clamp(44px,9vw,110px)}
#ashgate .under h1 span{color:var(--clay)}
#ashgate .under .ar{font-size:30px;color:var(--saffron)}
#ashgate .hint{position:absolute;bottom:26px;left:0;right:0;text-align:center;font-size:12px;letter-spacing:.25em;color:#fff;pointer-events:none;text-shadow:0 2px 8px #000}
#enterbtn{position:absolute;bottom:60px;left:50%;transform:translateX(-50%);background:var(--saffron);border:0;border-radius:100px;padding:14px 28px;font-weight:800;pointer-events:auto}
/* SONDE profondeur fixe */
#sonde{position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:60;text-align:center;background:rgba(11,6,3,.7);border:1px solid var(--line);border-radius:14px;padding:12px 10px;backdrop-filter:blur(6px)}
#sonde .d{font-family:Anton;font-size:22px;color:var(--saffron)}
#sonde .t{font-size:11px;color:var(--mut)}
#sonde .bar{width:6px;height:120px;background:#2a1c10;border-radius:6px;margin:10px auto;position:relative;overflow:hidden}
#sonde .bar i{position:absolute;bottom:0;left:0;right:0;height:0%;background:linear-gradient(var(--saffron),var(--clay))}
@media(max-width:700px){#sonde{display:none}}
.top{position:sticky;top:0;z-index:50;background:rgba(18,12,7,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:12px 20px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.brand{font-family:Anton;font-size:18px}
.top nav{display:flex;gap:16px;font-size:11px;letter-spacing:.2em}
.top nav a{color:var(--cream);text-decoration:none;opacity:.8}
/* HEROS fosse, pas split */
.pit{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
.pit .bg{position:absolute;inset:0}
.pit .bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.5) saturate(1.2)}
.pit .bg::after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 20%,var(--soil) 92%)}
.pit .arbg{position:absolute;top:6%;left:50%;transform:translateX(-50%);font-family:'Amiri',serif;font-size:clamp(120px,26vw,340px);color:rgba(232,160,32,.1);line-height:1;pointer-events:none;white-space:nowrap}
.pit-copy{position:relative;z-index:2;padding:0 40px 60px;max-width:900px}
@media(max-width:700px){.pit-copy{padding:0 20px 44px}}
.pit-copy h1{font-family:Anton;font-size:clamp(52px,9vw,130px);line-height:.9}
.pit-copy h1 span{color:var(--clay)}
#dust{position:absolute;inset:0;z-index:1;pointer-events:none}
/* STRATES: on creuse, pas de grille menu */
.strata{position:relative;padding:110px 24px;max-width:860px;margin:0 auto;text-align:center}
.strata .m{font-size:12px;letter-spacing:.3em;color:var(--saffron)}
.strata h2{font-family:Anton;font-size:clamp(38px,6vw,76px);line-height:.95;margin:12px 0}
.strata .ar2{font-family:'Amiri',serif;font-size:26px;color:var(--saffron)}
.strata p{color:#d8c6ac;line-height:1.85;margin:14px auto 0;max-width:600px}
.peephole{width:min(400px,80vw);aspect-ratio:1;margin:28px auto 0;border-radius:50%;overflow:hidden;border:6px solid #2a1a0e;box-shadow:0 0 0 2px var(--clay),0 30px 80px rgba(0,0,0,.6);position:relative}
.peephole img{width:100%;height:100%;object-fit:cover;filter:saturate(1.2)}
.peephole figcaption{position:absolute;bottom:14px;left:0;right:0;font-size:11px;letter-spacing:.2em;color:#fff;text-shadow:0 2px 6px #000}
#s2{background:linear-gradient(var(--soil),#1c0f06)}
#s3{background:linear-gradient(#1c0f06,#2b1204)}
#s4{background:linear-gradient(#2b1204,var(--deep))}
/* SCELLEMENT: tenir pour sceller — geste inédit */
.seal{margin:30px auto 0;max-width:420px;background:#0f0a06;border:1px solid var(--line);border-radius:20px;padding:26px}
#sealbtn{position:relative;width:150px;height:150px;border-radius:50%;border:3px solid var(--clay);background:radial-gradient(circle at 50% 65%,#5a2c12,#1c0e05);color:var(--cream);font-weight:800;font-size:14px;overflow:hidden}
#sealbtn svg{position:absolute;inset:-3px;transform:rotate(-90deg)}
#sealbtn circle{fill:none;stroke:var(--saffron);stroke-width:6;stroke-dasharray:440;stroke-dashoffset:440}
#sealmsg{margin-top:14px;min-height:44px;color:var(--saffron);font-size:14px;line-height:1.6}
/* PART: slider agneau */
.share{max-width:860px;margin:0 auto;padding:70px 24px;text-align:center}
.share input{width:min(480px,90%);accent-color:var(--saffron);margin-top:18px}
#shareout{font-family:Anton;font-size:clamp(40px,7vw,84px);color:var(--saffron);margin-top:10px}
#sharebtn{margin-top:16px;background:var(--saffron);border:0;border-radius:12px;padding:18px 30px;font-weight:800;font-size:16px;color:#1c0e04}
footer{border-top:1px solid var(--line);padding:50px 24px;text-align:center}
footer .m{font-family:Anton;font-size:clamp(38px,7vw,96px)}footer .m span{color:var(--clay)}
.note{margin-top:10px;color:#7d6a54;font-size:11px;letter-spacing:.16em}
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}#ashgate{display:none}#sonde{display:none}}