:root{
  --bg:#f4f2ec; --card:#ffffff; --ink:#1d2024; --muted:#62676d; --line:#e2ded4;
  --accent:#e2520f; --accent-soft:#fde9dd; --dark:#23262b;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
header{background:var(--dark);color:#fff;padding:22px 0 32px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;font-size:14px}
.topbar a{color:#c6cad0;text-decoration:none}.topbar a:hover{color:#fff}
header h1{margin:0 0 6px;font-size:clamp(28px,5vw,44px);letter-spacing:-.02em}
header h1 span{color:#ff7a3d}
header p{margin:0;color:#c6cad0;max-width:720px}
.stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.stat{background:#2f3339;border-radius:10px;padding:10px 16px}
.stat b{display:block;font-size:22px;color:#fff}
.stat small{color:#aab0b7}
h2{font-size:26px;margin:48px 0 12px;letter-spacing:-.01em}
h2 .n{display:inline-block;background:var(--accent);color:#fff;border-radius:8px;padding:0 10px;margin-right:8px;font-size:20px}
p.lead{color:var(--muted);margin-top:0}
.hl{color:var(--accent)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.photos{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.photos figure{margin:0}
.photos img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#fff;display:block}
.photos figcaption{font-size:12px;color:var(--muted);margin-top:4px}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.04em}
.tip{background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:8px;padding:10px 14px;margin:12px 0;font-size:15px}
.printbtn{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:8px 14px;font:inherit;cursor:pointer}
/* options */
.options{display:grid;gap:6px}
.opt{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-weight:600}
.opt select{font:inherit;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:#fff;max-width:100%}
.help{margin:0 0 8px;color:var(--muted);font-size:14px}
/* viewer */
#viewer{position:relative;height:480px;border-radius:14px;overflow:hidden;background:radial-gradient(circle at 50% 40%,#ffffff,#e7e4dc)}
#viewer canvas{display:block;width:100%!important;height:100%!important;cursor:grab}
.hint{position:absolute;right:12px;bottom:10px;font-size:12px;color:var(--muted);background:#fffc;border-radius:6px;padding:3px 8px}
.vbar{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap}
.vbar input[type=range]{flex:1;min-width:160px;accent-color:var(--accent)}
.vbar button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 12px;font:inherit;cursor:pointer}
.vbar button:hover{border-color:var(--accent)}
#vlabel{font-weight:600;min-width:220px}
.vctl{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.ctl{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 12px;font-size:15px;cursor:pointer}
.ctl input[type=range]{accent-color:var(--accent);width:140px}
.ctl input[type=checkbox]{accent-color:var(--accent);width:18px;height:18px}
/* inventaire */
.bom{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
.part{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 10px;display:flex;flex-direction:column;align-items:center;text-align:center}
.part img{width:120px;height:90px;object-fit:contain}
.part .q{font-weight:800;font-size:20px}
.part .nm{font-size:13px;line-height:1.3}
.part .rf{font-size:11px;color:var(--muted)}
.sw{display:inline-block;width:10px;height:10px;border-radius:3px;border:1px solid #0003;vertical-align:-1px;margin-right:4px}
/* étapes */
.step{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:18px;margin:18px 0;break-inside:avoid;page-break-inside:avoid}
.step .img{background:radial-gradient(circle at 50% 40%,#ffffff,#eeebe4);border-radius:12px;display:flex;align-items:center;justify-content:center;min-height:260px;position:relative}
.step .img img{width:100%;height:auto;display:block}
.step .num{position:absolute;left:14px;top:10px;font-size:44px;font-weight:900;color:var(--ink);opacity:.9}
.step .mult{position:absolute;right:12px;top:14px;background:var(--ink);color:#fff;border-radius:8px;padding:2px 10px;font-weight:700}
.step h3{margin:0 0 6px;font-size:20px}
.step p{margin:0 0 10px;font-size:15px}
.callout{border:2px solid var(--ink);border-radius:10px;padding:8px;display:flex;flex-wrap:wrap;gap:6px;background:#fbfaf7;margin-bottom:12px}
.callout .it{display:flex;flex-direction:column;align-items:center;width:84px;font-size:11px;text-align:center;line-height:1.2}
.callout .it img{width:78px;height:58px;object-fit:contain}
.callout .it b{font-size:15px}
.loading{color:var(--muted);font-style:italic}
footer{margin:60px 0 40px;color:var(--muted);font-size:14px}
@media (max-width:760px){.step{grid-template-columns:1fr}#viewer{height:360px}}
@media print{
  body{background:#fff}
  header{background:#fff;color:#000;padding:0}
  header p,.stat small{color:#444}.stat{background:#eee}.stat b{color:#000}
  .noprint,#viewer,.vbar,.vctl{display:none!important}
  .card{border:0;padding:0}
  h2{break-before:page;margin-top:0}
  .step{break-inside:avoid}
}