:root{
  --primary:#0f766e; --primary-d:#0e7490; --primary-l:#ccfbf1;
  --ink:#0f1f1d; --text:#334155; --muted:#64748b; --line:#e2e8f0;
  --bg:#ffffff; --bg-soft:#f6faf9;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh}
a{color:inherit;text-decoration:none}

/* ── Header sticky ── */
.hc-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hc-header-in{max-width:1080px;margin:0 auto;padding:0 22px;min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.hc-brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:18px;color:var(--ink);white-space:nowrap}
.hc-brand img{height:26px;width:auto;display:block}
.hc-brand-main{display:flex;align-items:center;gap:9px;color:var(--ink)}
.hc-brand-sep{font-weight:500;font-size:14px;color:var(--muted);padding-left:10px;margin-left:2px;border-left:1px solid var(--line)}
.hc-brand-sep:hover{color:var(--primary)}
.hc-actions{display:flex;align-items:center;gap:10px}
.hc-link{font-weight:600;color:var(--text);padding:8px 12px;border-radius:9px;white-space:nowrap}
.hc-link:hover{color:var(--primary);background:var(--primary-l)}
.hc-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:10px;font-weight:600;font-size:14px;border:none;cursor:pointer;white-space:nowrap}
.hc-btn-primary{background:var(--primary);color:#fff}
.hc-btn-primary:hover{background:var(--primary-d)}
.hc-btn-back{background:#fff;color:var(--primary);border:1px solid var(--line);padding:7px 14px;font-size:13px;text-decoration:none}
.hc-btn-back:hover{border-color:var(--primary);background:var(--bg-soft)}

/* ── Layout 2 colonnes ── */
.hc-wrap{max-width:1100px;margin:0 auto;padding:28px 22px 10px;display:grid;grid-template-columns:210px 1fr;gap:30px;align-items:start;width:100%;flex:1 0 auto}
.hc-menu{position:sticky;top:86px}
.hc-menu-cat{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--primary);margin:14px 0 6px}
.hc-menu nav a{display:block;padding:8px 12px;border-radius:9px;font-size:14px;font-weight:500;color:var(--text)}
.hc-menu nav a:hover{background:var(--bg-soft);color:var(--primary)}
.hc-menu nav a.active{background:var(--primary-l);color:var(--primary);font-weight:600}
.hc-menu-toggle{display:none}
.hc-back{margin-top:22px;font-size:14px}

/* ── Contenu ── */
.hc-main{min-width:0;padding-bottom:30px}
.hc-main h1{font-size:30px;line-height:1.2;color:var(--ink);font-weight:700;letter-spacing:-.3px;margin-bottom:14px}
.hc-lead{font-size:17px;color:var(--text);margin-bottom:22px}
.hc-breadcrumb{font-size:13px;color:var(--muted);margin-bottom:10px}
.hc-breadcrumb a{color:var(--primary);font-weight:600}
.hc-article p a,.hc-article li a{color:var(--primary);text-decoration:underline}

.hc-article h2{font-size:21px;color:var(--ink);font-weight:700;margin:26px 0 10px}
.hc-article p{margin-bottom:14px}
.hc-article ul,.hc-article ol{margin:0 0 16px 22px}
.hc-article li{margin-bottom:8px}
.hc-article blockquote{border-left:3px solid var(--primary);background:var(--bg-soft);padding:12px 16px;border-radius:0 8px 8px 0;color:var(--ink);font-style:italic;margin:0 0 16px}
.hc-note{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:12px 16px;margin:0 0 16px;font-size:15px}

/* ── Cartes (accueil) ── */
.hc-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.hc-card{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:14px;padding:18px 20px;background:#fff;transition:box-shadow .2s,transform .2s,border-color .2s}
.hc-card:hover{box-shadow:0 10px 26px rgba(15,31,29,.08);transform:translateY(-2px);border-color:var(--primary-l)}
.hc-card-cat{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--primary)}
.hc-card-title{font-size:17px;font-weight:700;color:var(--ink)}
.hc-card-desc{font-size:14px;color:var(--muted)}

/* ── CTA bas d'article ── */
.hc-cta{margin-top:30px;padding:22px;background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;text-align:center}
.hc-cta p{font-weight:600;color:var(--ink);margin-bottom:12px}

/* ── Footer (identique à la landing) ── */
.wrap{max-width:1100px;margin:0 auto;padding:0 22px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px;color:var(--ink);white-space:nowrap}
.brand-logo{height:28px;width:auto;display:block}
footer{background:var(--ink);color:#cbd5e1;padding:40px 0;font-size:14px}
.foot-grid{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
footer a:hover{color:#fff}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}

@media(max-width:780px){
  .hc-wrap{grid-template-columns:1fr;gap:14px}
  .hc-menu{position:static;border:1px solid var(--line);border-radius:10px;padding:0;background:var(--bg-soft)}
  .hc-menu-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;border:none;font-family:inherit;font-size:15px;font-weight:600;color:var(--ink);padding:12px 14px;cursor:pointer}
  .hc-menu-caret{color:var(--primary);transition:transform .2s}
  .hc-menu.open .hc-menu-caret{transform:rotate(180deg)}
  .hc-menu nav{display:none;padding:0 12px 12px}
  .hc-menu.open nav{display:block}
  .hc-menu .hc-menu-cat{margin-top:10px}
  .hc-brand-sep{display:none}
  .hc-main h1{font-size:25px}
}
@media(max-width:560px){
  .hc-header-in{flex-direction:column;align-items:stretch;gap:8px;padding:10px 16px;min-height:0}
  .hc-actions{justify-content:flex-end;gap:8px}
  .hc-brand{font-size:17px}
  .hc-link{font-size:13px;padding:6px 10px}
  .hc-btn{font-size:13px;padding:8px 12px}
}