:root{
  --bg:#F4EEE4; --paper:#FFFDF8; --sunk:#EDE5D7; --ink:#2B2A26; --muted:#6B6670; --line:#E2D8C7;
  --fir:#2F5D50; --fir2:#244A3F; --emer:#2F5D50; --emer-soft:#DFE9E3;
  --gold:#C9A465; --gold-l:#E9D3A1; --gold-ink:#8A6A2E; --terra:#B9673F;
  --on-fir:#F4EEE4; --on-fir-muted:#C9D6CF;
  --f-d:"Cormorant Garamond",Georgia,"Times New Roman",serif; --f-b:"Jost","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#141917; --paper:#1C2320; --sunk:#232B28; --ink:#ECE6DA; --muted:#A9AAA4; --line:#33403B;
  --fir:#22433A; --fir2:#19332B; --emer:#9CC7B5; --emer-soft:#22352E;
  --gold:#D9B677; --gold-l:#E9D3A1; --gold-ink:#E2C68C; --terra:#E0956C;
  --on-fir:#F1ECE2; --on-fir-muted:#B7C7BF; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#141917; --paper:#1C2320; --sunk:#232B28; --ink:#ECE6DA; --muted:#A9AAA4; --line:#33403B;
  --fir:#22433A; --fir2:#19332B; --emer:#9CC7B5; --emer-soft:#22352E;
  --gold:#D9B677; --gold-l:#E9D3A1; --gold-ink:#E2C68C; --terra:#E0956C;
  --on-fir:#F1ECE2; --on-fir-muted:#B7C7BF; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-b);font-weight:400;font-size:17px;line-height:1.6}
b,strong{font-weight:500}
img{max-width:100%;display:block}
a{color:var(--emer)}
.in{max-width:1120px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-d);font-weight:500;line-height:1.08;margin:0;text-wrap:balance}
h1{font-size:clamp(2.6rem,6.4vw,4.6rem)}
h2{font-size:clamp(2rem,4.4vw,3rem)}
h3{font-size:1.6rem}
p{margin:0}
.kick{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-ink)}
.lead{font-size:1.15rem;color:var(--muted);max-width:60ch}
.ital{font-family:var(--f-d);font-style:italic}
.muted{color:var(--muted)}.small{font-size:.9rem}
.stack{display:grid;gap:14px}
.btn{display:inline-flex;align-items:center;gap:8px;text-decoration:none;border-radius:999px;padding:12px 22px;font:inherit;font-size:1rem;cursor:pointer;border:1px solid transparent;transition:transform .15s}
.btn:hover{transform:translateY(-1px)}
.btn.gold{background:linear-gradient(135deg,var(--gold-l),var(--gold));color:#2A2214}
.btn.fir{background:var(--fir);color:var(--on-fir)}
.btn.ghost{border-color:var(--line);color:var(--ink);background:var(--paper)}
.btn.ghostd{border-color:rgba(255,255,255,.28);color:var(--on-fir);background:transparent}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}

/* en-tête */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:21;background:var(--bg)}
.top .in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--f-d);font-size:1.3rem;line-height:1.1}
.brand small{display:block;font-family:var(--f-b);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.brand svg{width:36px;height:36px;flex:none}
.nav{display:flex;gap:18px;font-size:.95rem}
.nav a{text-decoration:none;color:var(--ink)}
.nav a:hover{color:var(--emer)}
@media (max-width:640px){.nav{display:none}}

/* téléphone */
.phone{position:relative;width:100%;max-width:280px;aspect-ratio:390/844;border-radius:42px;padding:9px;background:#141414;box-shadow:0 30px 60px -24px rgba(20,30,25,.45),inset 0 0 0 2px #2b2b2b}
.phone img{width:100%;height:100%;object-fit:cover;object-position:top;border-radius:34px}
.phone::after{content:"";position:absolute;top:17px;left:50%;transform:translateX(-50%);width:28%;height:20px;border-radius:12px;background:#141414}

/* sections */
section{padding-block:clamp(56px,9vw,104px)}
.band{background:linear-gradient(160deg,var(--fir),var(--fir2));color:var(--on-fir)}
.band .lead,.band .muted{color:var(--on-fir-muted)}
.band .kick{color:var(--gold-l)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:24px}
.foot{border-top:1px solid var(--line);padding-block:36px 48px;font-size:.88rem;color:var(--muted)}
.foot .in{display:grid;gap:14px}
.sig{font-size:.78rem;color:var(--muted);text-align:center}
details{border-top:1px solid var(--line)}
details:last-child{border-bottom:1px solid var(--line)}
summary{cursor:pointer;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;font-size:1.05rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--f-d);font-size:1.5rem;line-height:1;color:var(--gold-ink);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details .ans{padding:0 0 16px;color:var(--muted);max-width:70ch;display:grid;gap:8px}
.mail{font-family:var(--f-b);background:var(--sunk);color:var(--ink);border-radius:10px;padding:6px 12px;user-select:all;overflow-wrap:anywhere}
.band .mail{background:rgba(255,255,255,.1);color:var(--on-fir)}
.stack{align-content:start}
.copy{font:inherit;font-size:.85rem;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:999px;padding:5px 12px;cursor:pointer}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}