:root{--acc:#1f6f78;--ink:#1d1d1d;--mut:#555;--bg:#ffffff;--soft:#f4f4f1;--line:#e3e3e3}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.65 Georgia,Cambria,"Times New Roman",serif}
.w{max-width:740px;margin:0 auto;padding:0 20px}
h1,h2,h3,nav,.btn,.sans,summary{font-family:"Segoe UI",Calibri,Arial,sans-serif}
a{color:var(--acc)}
header.top{border-bottom:1px solid var(--line)}
header.top .w{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}
.logo{font:700 20px "Segoe UI",sans-serif;text-decoration:none;color:var(--ink)}
nav a{margin-right:18px;font-size:16px;text-decoration:none}nav a:hover{text-decoration:underline}
.hero{background:var(--soft);padding:34px 0 40px}
.coll{letter-spacing:.16em;text-transform:uppercase;font-size:13px;color:var(--acc);font-weight:600}
h1{font-size:clamp(30px,6vw,44px);line-height:1.15;margin:.3em 0 .35em}
.lede{font-size:22px;line-height:1.5;margin:0 0 1em}
.sous{font-size:21px;color:var(--mut);font-style:italic;margin:0 0 .6em}
.cols{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}
@media(min-width:680px){.cols{grid-template-columns:1fr 230px}}
.cols img.cv{width:100%;max-width:230px;border-radius:6px;box-shadow:0 6px 20px rgba(0,0,0,.18)}
.prix{font:600 30px "Segoe UI",sans-serif;margin-top:.4em}.prix small{font-size:15px;color:var(--mut);font-weight:400}
.btn{display:inline-block;background:var(--acc);color:#fff;padding:15px 28px;border-radius:8px;font-size:19px;font-weight:600;text-decoration:none;margin:12px 12px 0 0}
.btn.off{background:#d9d9d9;color:#444;cursor:default}
.btn.alt{background:#fff;color:var(--acc);border:2px solid var(--acc)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #0b3d44;outline-offset:2px}
h2{font-size:28px;color:var(--acc);margin:1.7em 0 .5em}h3{font-size:20px;margin:1.2em 0 .3em}
ul{padding-left:1.2em}li{margin:.5em 0}
.ch{list-style:none;padding:0}.ch li{padding:.55em 0;border-bottom:1px solid var(--line);font-family:"Segoe UI",Calibri,sans-serif;font-size:17px}
.ch b{display:block}.ch span{color:var(--mut)}
.box{background:var(--soft);border-left:5px solid var(--acc);padding:16px 20px;border-radius:6px;margin:1.2em 0}
.calc{font:600 21px/1.5 "Segoe UI",sans-serif;text-align:center;padding:22px 16px;background:#eaf5ec;border-radius:8px;border:2px solid #2e8b4a;margin:1.2em 0}
.calc small{display:block;font:400 15px "Segoe UI",sans-serif;color:var(--mut);margin-top:.4em}
.gal{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:1em 0}
.gal figure{margin:0}.gal img{width:100%;border:1px solid var(--line);border-radius:6px}
figcaption{font:italic 14px "Segoe UI",sans-serif;color:var(--mut);text-align:center;margin-top:.3em}
img.sch{width:100%;height:auto;display:block;margin:1em 0}
details{border-bottom:1px solid var(--line);padding:.7em 0}summary{cursor:pointer;font-size:18px;font-weight:600}
footer{background:var(--soft);padding:26px 0;margin-top:3em;font-size:15px;color:var(--mut)}
.todo{background:#fff3cd;padding:0 .3em;border-radius:3px;font-size:.92em}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{background:var(--soft);padding:18px;border-radius:10px}.card img{width:100%;max-width:200px;border-radius:5px}