/* Ombres Chinoises — feuille de style unique */
:root{--text:#222;--muted:#666;--bg:#f7f8f9;--card:#fff;--line:#e5e7eb;--accent:#e8731d;--accent-dark:#c95f12}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.7 -apple-system,system-ui,"Segoe UI",Helvetica,Arial,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-dark)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px;z-index:9}

/* En-tête */
header.site{background:var(--card);border-bottom:1px solid var(--line)}
.head-in{max-width:1100px;margin:0 auto;padding:18px 16px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.logo{min-width:0;flex:1 1 auto}.logo img{height:auto;width:100%;max-width:420px}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 22px}
nav a{color:var(--text);text-decoration:none;font-size:15px}
nav a:hover,nav a[aria-current]{color:var(--accent-dark)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:6px 12px;font:inherit;font-size:15px;cursor:pointer}
@media(max-width:760px){
  .menu-btn{display:block}
  nav{width:100%;display:none}
  nav.open{display:block}
  nav ul{flex-direction:column;gap:0}
  nav li a{display:block;padding:10px 0;border-top:1px solid var(--line)}
}

/* Contenu */
main{max-width:1100px;margin:0 auto;padding:32px 20px 48px}
.card{background:var(--card);padding:40px;border-radius:4px}
@media(max-width:600px){.card{padding:24px 18px}}
h1,h2,h3{line-height:1.3;font-weight:600}
h1{font-size:32px;margin:0 0 24px}
h2{font-size:26px;margin:40px 0 16px}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.eyebrow{text-align:center;letter-spacing:.12em;font-weight:700;color:var(--accent-dark);margin:0 0 20px}

.book{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
@media(max-width:760px){.book{grid-template-columns:minmax(0,1fr);gap:24px}}
.book .cover{width:100%;max-width:min(100%,520px);margin:0 auto}
.buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.btn{display:inline-block;padding:12px 26px;border-radius:3px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600}
.btn:hover{background:var(--accent-dark)}
.btn.ghost{background:#fff;color:var(--text);border:1px solid var(--text)}
.btn.ghost:hover{background:var(--text);color:#fff}
.price{color:var(--muted);font-size:15px;margin-top:10px}

blockquote{margin:0;padding:8px 0 8px 22px;border-left:3px solid var(--accent);font-style:italic}
blockquote cite{display:block;font-style:normal;font-size:15px;color:var(--muted);margin-top:10px}

.author{display:grid;grid-template-columns:200px 1fr;gap:32px;align-items:start}
.author img{border-radius:4px}
.author .name{font-weight:700;margin:10px 0 0;text-align:center}
@media(max-width:600px){.author{grid-template-columns:minmax(0,1fr)}.author figure{max-width:200px;margin:0 auto}}
figure{margin:0}

.two{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
@media(max-width:760px){.two{grid-template-columns:minmax(0,1fr)}}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-top:24px}
.features h3{font-size:16px;letter-spacing:.06em;margin:0 0 8px}

.contact-box{text-align:center;background:#fff8f2;border:1px solid #f3d9c3;padding:28px;border-radius:4px;margin-top:40px}

/* Pied de page */
footer.site{background:#222;color:#ddd;font-size:15px}
.foot-in{max-width:1100px;margin:0 auto;padding:36px 20px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:700px){.foot-in{grid-template-columns:1fr}}
footer a{color:#fff}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin:4px 0}
.copy{border-top:1px solid #333;text-align:center;padding:14px;font-size:13px;color:#999}