:root{
  --green:#004f00;--green-700:#013a01;--gold:#a67f00;--ink:#16201a;--muted:#5c6b60;
  --line:#e2e8e0;--bg:#f5f7f3;--card:#fff;--tint:#eaf1e8;
  --font:'IBM Plex Sans',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--green);text-decoration:none}

/* Top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:14px;
  background:var(--card);border-bottom:1px solid var(--line);padding:12px 18px}
.topbar .brand{display:flex;align-items:center;gap:10px;font-size:1.05rem}
.topbar .mark{width:34px;height:34px;object-fit:contain}
.topbar .brand b{font-weight:700}
.topbar .brand span{color:var(--gold)}
.topbar .pdf{margin-left:auto;background:var(--gold);color:#fff;padding:8px 14px;border-radius:10px;font-weight:600;font-size:.9rem}
.topbar .pdf:hover{background:#8f6d00}
.burger{display:none;font-size:1.4rem;cursor:pointer;color:var(--green)}

/* Layout */
.layout{display:flex;max-width:1200px;margin:0 auto;align-items:flex-start}
.side{position:sticky;top:56px;width:300px;flex:0 0 300px;max-height:calc(100vh - 56px);overflow:auto;padding:18px 10px;border-right:1px solid var(--line)}
.side ol{list-style:none;margin:0;padding:0;counter-reset:none}
.side li a{display:flex;gap:10px;align-items:baseline;padding:9px 12px;border-radius:10px;color:var(--ink);font-size:.94rem}
.side li a .n{color:var(--gold);font-variant-numeric:tabular-nums;font-weight:600;font-size:.8rem;flex:0 0 auto}
.side li a:hover{background:var(--tint)}
.side li.active a{background:var(--green);color:#fff}
.side li.active a .n{color:#ffe9a8}

.content{flex:1;min-width:0;padding:26px 34px 60px}
.crumb{color:var(--muted);font-size:.85rem;margin-bottom:14px}
.chapno{display:inline-block;color:var(--gold);font-weight:600;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase}
.content h1{font-size:2rem;line-height:1.15;margin:.15em 0 .4em;letter-spacing:-.02em;text-wrap:balance}
.obj{font-size:1.08rem;color:var(--muted);max-width:62ch;margin:0 0 26px}

.cols{display:grid;grid-template-columns:1fr 300px;gap:34px;align-items:start}
.steps h2{font-size:1.05rem;color:var(--green);margin:0 0 14px}
.steps ol{counter-reset:s;list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.steps li{counter-increment:s;display:flex;gap:13px;align-items:flex-start}
.steps li::before{content:counter(s);flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;font-weight:700;display:grid;place-items:center;font-size:.9rem;margin-top:1px}
.steps b{color:var(--green-700)}
.tip{margin-top:22px;background:var(--tint);border-left:4px solid var(--gold);border-radius:10px;padding:14px 16px}
.tip b{display:block;color:var(--green-700);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:3px}
.tip p{margin:0;font-size:.96rem}

.shots{display:flex;flex-direction:column;gap:22px}
.shot{margin:0}
.phone{border:8px solid #1c2a1f;border-radius:26px;overflow:hidden;background:#1c2a1f;box-shadow:0 10px 30px rgba(0,50,0,.14)}
.phone img{display:block;width:100%}
.shot figcaption{margin-top:8px;font-size:.85rem;color:var(--muted);text-align:center}

/* Sous-sections enrichies (import de masse) */
.msec{margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.msec>h2{font-size:1.35rem;color:var(--green);margin:0 0 6px;letter-spacing:-.01em}
.msec>.lead2{color:var(--muted);margin:0 0 20px;max-width:62ch}
/* Tableau de format de fichier */
.fmt{width:100%;border-collapse:collapse;margin:4px 0 18px;font-size:.92rem}
.fmt th,.fmt td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.fmt thead th{background:var(--tint);color:var(--green-700);font-weight:600}
.fmt code{background:var(--tint);border-radius:6px;padding:.06em .45em;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.9em}
.fmt .req{color:var(--green-700);font-weight:600}
/* Bloc téléchargement du modèle */
.dlrow{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:6px 0 2px}
.dl{display:inline-flex;align-items:center;gap:8px;background:var(--green);color:#fff;padding:11px 16px;border-radius:12px;font-weight:600;font-size:.92rem}
.dl:hover{background:var(--green-700)}
.dl .ic{font-size:1.05em}
.dlrow .note{color:var(--muted);font-size:.86rem}

.pager{display:flex;justify-content:space-between;gap:16px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line)}
.pg{max-width:46%;padding:12px 16px;border:1px solid var(--line);border-radius:12px;font-weight:600;background:var(--card)}
.pg:hover{border-color:var(--green);background:var(--tint)}
.pg.next{text-align:right;margin-left:auto}

/* Index */
.hero{padding:14px 0 8px}
.hero h1{font-size:2.4rem;margin:.1em 0 .3em;letter-spacing:-.02em}
.hero .lead{font-size:1.12rem;color:var(--muted);max-width:64ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.btn{background:var(--green);color:#fff;padding:12px 18px;border-radius:12px;font-weight:600}
.btn:hover{background:var(--green-700)}
.btn.ghost{background:#fff;color:var(--green);border:1px solid var(--green)}
.btn.ghost:hover{background:var(--tint)}
.soms{margin:36px 0 16px;font-size:1.3rem}
.toc{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.tocard{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:.15s}
.tocard:hover{border-color:var(--green);box-shadow:0 6px 20px rgba(0,60,0,.07);transform:translateY(-1px)}
.tocard .n{color:var(--gold);font-weight:700;font-variant-numeric:tabular-nums;font-size:.8rem}
.tocard .tt{font-weight:600;color:var(--ink);font-size:1.05rem}
.tocard .ob{color:var(--muted);font-size:.86rem}

.foot{max-width:1200px;margin:0 auto;padding:24px 34px;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line)}

@media(max-width:860px){
  .burger{display:block}
  .side{position:fixed;top:55px;left:0;bottom:0;background:var(--card);z-index:15;transform:translateX(-100%);transition:.2s;border-right:1px solid var(--line)}
  #navtoggle:checked ~ .layout .side{transform:none}
  .cols{grid-template-columns:1fr}
  .shots{max-width:320px;margin:0 auto}
  .content{padding:20px}
}

/* ---- PDF / impression ---- */
.printdoc{background:#fff}
.printdoc .cover{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;page-break-after:always}
.printdoc .cover .mark{width:120px;height:120px;object-fit:contain;margin-bottom:20px}
.printdoc .cover h1{font-size:3rem;color:var(--green);margin:0}
.printdoc .cover h2{font-size:1.4rem;color:var(--gold);margin:.2em 0 1em;font-weight:600}
.printdoc .chap{padding:24px 30px;page-break-inside:avoid;border-bottom:1px solid var(--line)}
.printdoc .chap h1{font-size:1.5rem;color:var(--green);margin:.1em 0 .3em}
.printdoc .cols{grid-template-columns:1fr 260px}
.printdoc .shots{max-width:260px}
@media print{
  .topbar,.side,.pager,.crumb,.foot{display:none!important}
  .printdoc .chap{page-break-inside:avoid}
}