:root{
  --paper:#FBF7EF;
  --paper-2:#F3ECDF;
  --ink:#1B1815;
  --ink-soft:#4A433B;
  --rouge:#A5201F;
  --rouge-dark:#7E1717;
  --vert:#2C8F52;
  --line:rgba(27,24,21,.14);
  --serif:"Cormorant Garamond",Georgia,serif;
  --sans:"Karla",system-ui,-apple-system,sans-serif;
  --maxw:1180px;
  --pad:clamp(1.25rem,4vw,3rem);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:1.125rem;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.eyebrow{
  font-size:.8125rem;letter-spacing:.18em;text-transform:uppercase;
  font-weight:700;color:var(--rouge);margin:0 0 1rem
}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;margin:0}
h2{font-size:clamp(1.9rem,4vw,2.75rem);letter-spacing:-.01em}
h3{font-size:1.375rem;line-height:1.25}
p{margin:0 0 1.1rem;max-width:66ch}
section{padding-block:clamp(3.5rem,8vw,7rem)}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(251,247,239,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-in{display:flex;align-items:center;gap:1.5rem;
  max-width:var(--maxw);margin:0 auto;padding:.7rem var(--pad);}
.brand img{height:44px;width:auto}
.nav{margin-left:auto;display:flex;gap:1.6rem;align-items:center;flex-wrap:wrap}
.nav a{
  font-size:1rem;font-weight:600;text-decoration:none;color:var(--ink-soft);
  padding-block:.25rem;border-bottom:2px solid transparent;
}
.nav a:hover,.nav a:focus-visible{color:var(--rouge);border-bottom-color:var(--rouge)}
.nav .btn{border:0}

.btn{
  display:inline-block;font-family:var(--sans);font-weight:700;font-size:1rem;
  text-decoration:none;padding:.85rem 1.5rem;border-radius:2px;
  background:var(--rouge);color:#fff;border:2px solid var(--rouge);
  transition:background .2s,color .2s;
}
.btn:hover,.btn:focus-visible{background:var(--rouge-dark);border-color:var(--rouge-dark)}
.btn--ghost{background:transparent;color:var(--rouge)}
.btn--ghost:hover,.btn--ghost:focus-visible{background:var(--rouge);color:#fff}
.btn--vert{background:var(--vert);border-color:var(--vert)}
.btn--vert:hover,.btn--vert:focus-visible{background:#22713f;border-color:#22713f}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
  border-bottom:1px solid var(--line);padding-block:clamp(3rem,7vw,6rem)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);letter-spacing:-.02em}
.hero h1 em{display:block;font-style:normal;font-size:.55em;color:var(--rouge);margin-top:.35rem;letter-spacing:0}
.slogan{font-family:var(--serif);font-size:clamp(1.3rem,2.4vw,1.75rem);
  font-style:italic;color:var(--ink-soft);margin:1.4rem 0 1.8rem}
.hero-meta{display:flex;gap:1.75rem;flex-wrap:wrap;margin:2.2rem 0 0;
  padding-top:1.5rem;border-top:1px solid var(--line);font-size:1rem}
.hero-meta div strong{display:block;font-family:var(--serif);font-size:1.75rem;line-height:1}
.hero-meta div span{color:var(--ink-soft)}
.cta-row{display:flex;gap:1rem;flex-wrap:wrap}
.hero figure{margin:0}

/* ---------- citation ---------- */
.quote{background:var(--rouge);color:#FBF3EA;text-align:center;position:relative}
.quote blockquote{margin:0 auto;max-width:30ch;font-family:var(--serif);
  font-size:clamp(1.6rem,3.6vw,2.6rem);line-height:1.28;font-style:italic}
.quote figcaption{margin-top:2rem;font-size:.95rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.85}

/* ---------- livre ---------- */
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.lead{font-size:1.25rem;line-height:1.6}
.rule{width:64px;height:3px;background:var(--vert);border:0;margin:0 0 1.75rem}

/* ---------- périodes ---------- */
.periodes{background:var(--paper-2);border-block:1px solid var(--line)}
.grid-p{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:1px;
  background:var(--line);margin-top:2.5rem;border:1px solid var(--line)}
.card{background:var(--paper);padding:1.75rem}
.card .num{font-family:var(--serif);font-size:1.1rem;color:var(--rouge);
  font-weight:700;letter-spacing:.05em}
.card h3{margin:.4rem 0 .5rem}
.card p{font-size:1rem;color:var(--ink-soft);margin:0;max-width:none}

/* ---------- auteur ---------- */
.auteur .two{grid-template-columns:.8fr 1.2fr}
.portrait{border:1px solid var(--line);background:#fff;padding:.75rem}
.signature{font-family:var(--serif);font-style:italic;font-size:1.3rem;color:var(--ink-soft)}

/* ---------- acheter ---------- */
.acheter{background:var(--ink);color:var(--paper)}
.acheter h2,.acheter h3{color:var(--paper)}
.acheter .eyebrow{color:#E7A6A0}
.acheter p{color:#D8D1C7}
.buy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:2rem;margin-top:2.5rem}
.buy-card{border:1px solid rgba(251,247,239,.22);padding:1.9rem}
.buy-card h3{font-size:1.3rem;margin-bottom:.6rem}
.buy-card p{font-size:1rem;margin-bottom:1.3rem}
.libs{list-style:none;padding:0;margin:0;font-size:1rem;color:#D8D1C7}
.libs li{padding:.45rem 0;border-bottom:1px dashed rgba(251,247,239,.18)}

/* ---------- footer ---------- */
.site-foot{background:var(--paper-2);border-top:1px solid var(--line);
  padding-block:3rem;font-size:1rem}
.foot-in{display:flex;gap:2rem;flex-wrap:wrap;align-items:center;justify-content:space-between}
.foot-in img{height:38px;width:auto}
.foot-links{display:flex;gap:1.5rem;flex-wrap:wrap}
.foot-links a{text-decoration:none;font-weight:600;color:var(--ink-soft)}
.foot-links a:hover{color:var(--rouge)}
.copy{color:var(--ink-soft);font-size:.9375rem;flex:0 0 100%;width:100%;margin:0;padding-top:1.5rem;
  border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:860px){
  .hero-grid,.two,.auteur .two{grid-template-columns:1fr}
  .hero figure{order:-1;max-width:340px;margin-inline:auto}
  .nav{gap:1.1rem;width:100%;margin-left:0;justify-content:flex-start}
  .head-in{flex-wrap:wrap}
  .portrait{max-width:360px}
}
@media (prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
}

.nav a.btn{color:#fff;border:2px solid var(--rouge)}
.nav a.btn:hover,.nav a.btn:focus-visible{color:#fff;border-color:var(--rouge-dark)}

.libs{display:grid;grid-template-columns:repeat(2,1fr);column-gap:1.25rem}

/* ---------- sommaire ---------- */
.toc-head{background:linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
  border-bottom:1px solid var(--line);padding-block:clamp(2.5rem,6vw,4.5rem)}
.toc-head h1{font-size:clamp(2.2rem,5vw,3.4rem);letter-spacing:-.02em}
.toc{padding-top:clamp(2.5rem,6vw,4rem)}
.per{margin-bottom:clamp(2.5rem,5vw,3.75rem);max-width:820px}
.per-h{display:flex;align-items:baseline;gap:.9rem;flex-wrap:wrap;
  padding-bottom:.6rem;border-bottom:2px solid var(--rouge);margin-bottom:1rem}
.per-n{font-size:.8125rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:700;color:var(--rouge)}
.per-h h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:0}
.per-p{margin-left:auto;font-size:.95rem;color:var(--ink-soft);white-space:nowrap}
.entries{list-style:none;margin:0;padding:0}
.entries li{display:flex;align-items:baseline;gap:.6rem;padding:.42rem 0;
  border-bottom:1px dotted var(--line);font-size:1.0625rem}
.entries li span{flex:1}
.entries li em{font-style:italic;color:var(--ink-soft)}
.entries li b{font-variant-numeric:tabular-nums;font-weight:600;color:var(--rouge);white-space:nowrap}
.entries li.gap{color:var(--ink-soft);font-style:italic}
.entries li.gap b{color:var(--ink-soft)}
.toc-cta{margin-top:2.5rem}

/* ---------- annuaire librairies ---------- */
.libs-note{color:#D8D1C7}
.annuaire{background:var(--paper-2);border-top:1px solid var(--line);
  padding-block:clamp(3rem,7vw,5rem)}
.villes{columns:360px 2;column-gap:2.5rem;margin-top:2.5rem}
.ville{break-inside:avoid;-webkit-column-break-inside:avoid;
  background:#FFFDF9;border:1px solid var(--line);border-left:5px solid var(--rouge);
  border-radius:6px;padding:1.25rem 1.5rem 1.1rem;margin:0 0 1.5rem;
  box-shadow:0 1px 2px rgba(27,24,21,.05)}
.ville h3{font-family:"Karla",sans-serif;font-size:1.625rem;font-weight:700;
  letter-spacing:.01em;margin:0 0 .7rem;padding-bottom:.5rem;
  border-bottom:1px solid var(--line);color:var(--rouge)}
.ville ul{list-style:none;margin:0;padding:0}
.ville li{font-size:1.4375rem;line-height:1.5;padding:.5rem 0;color:var(--ink)}
.ville li + li{border-top:1px dotted var(--line)}
.ville li::before{content:"›";color:var(--rouge);font-weight:700;margin-right:.6rem}

/* ---------- reseaux ---------- */
.reseaux{display:flex;flex-direction:column;gap:.7rem;margin-top:1rem}
.reseaux a{color:#FBF7EF;font-size:1.125rem;font-weight:600;
  border-bottom:1px solid rgba(251,247,239,.35);padding-bottom:.2rem;width:fit-content}
.reseaux a:hover{color:var(--vert);border-color:var(--vert)}

/* ---------- adresse courriel ---------- */
.mail-adr{margin:1.1rem 0 .4rem}
.mail-adr a{display:inline-block;font-family:var(--font-body);font-weight:700;
  font-size:1.375rem;color:var(--vert);letter-spacing:.01em;
  user-select:all;-webkit-user-select:all;word-break:break-all}
.mail-adr a:hover{color:#FBF7EF}