/* Esprit Lunaire — design system
   Palette lune/nuit + accents chaleureux par livre. Aucune dépendance externe (perf + RGPD). */

:root{
  --navy:#12205c;
  --navy-deep:#0b1440;
  --gold:#ccb043;
  --cream:#fdf8ef;
  --paper:#ffffff;
  --ink:#241c3f;
  --ink-soft:#524a68;
  --line:#e7e1d3;
  --radius:1.1rem;
  --shadow:0 10px 30px -12px rgba(18,32,92,.25);
  --shadow-sm:0 4px 14px -6px rgba(18,32,92,.18);
  --container:1120px;
  --accent:var(--gold);
}

/* couleur d'accent par livre, réutilisée en bordures/boutons/badges */
.book-amitie{--accent:#ccb043;}
.book-retrouvailles{--accent:#0ea34a;}
.book-fete{--accent:#793333;}
.book-pipo{--accent:#c66331;}
.book-valentine{--accent:#b89a2e;}
.book-emile{--accent:#ce7a2d;}
.book-championne{--accent:#7a3fc9;}
.book-naissance{--accent:#d1495b;}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--navy);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 1.5rem;}

h1,h2,h3{
  font-family:Georgia,'Times New Roman',serif;
  color:var(--navy);
  line-height:1.15;
  letter-spacing:.2px;
  margin:0 0 .6em;
}
h1{font-size:clamp(2rem,4vw,3.1rem);}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em;}
.lede{font-size:1.15rem;color:var(--ink-soft);}
.eyebrow{
  display:inline-block;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:.7em;
}

/* ---------- Header / nav (menu mobile 100% CSS, sans JS) ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(253,248,239,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:.7rem;padding-bottom:.7rem;
}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--navy);font-weight:700;}
.brand img{width:42px;height:42px;border-radius:50%;object-fit:cover;border:2px solid var(--gold);}
.brand span{font-family:Georgia,serif;font-size:1.25rem;letter-spacing:.5px;}

.nav-toggle{display:none;}
.nav-toggle-label{
  display:none;cursor:pointer;padding:.5rem;
}
.nav-toggle-label svg{display:block;}

nav.site-nav ul{list-style:none;display:flex;gap:1.4rem;margin:0;padding:0;flex-wrap:wrap;}
nav.site-nav a{
  text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem;
  padding:.3rem .1rem;border-bottom:2px solid transparent;
}
nav.site-nav a:hover, nav.site-nav a:focus{border-bottom-color:var(--gold);}

@media (max-width:860px){
  nav.site-nav{
    position:absolute;top:100%;left:0;right:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-sm);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  nav.site-nav ul{flex-direction:column;gap:0;padding:.5rem 1.5rem 1rem;}
  nav.site-nav li{border-top:1px solid var(--line);}
  nav.site-nav li:first-child{border-top:none;}
  nav.site-nav a{display:block;padding:.75rem .2rem;}
  .nav-toggle-label{display:block;}
  .nav-toggle:checked ~ nav.site-nav{max-height:70vh;overflow-y:auto;}
}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-weight:700;font-size:1rem;text-decoration:none;
  padding:.85em 1.6em;border-radius:.7em;border:2px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--accent);color:var(--navy-deep);box-shadow:var(--shadow-sm);}
.btn-primary:hover{box-shadow:var(--shadow);}
.btn-outline{background:transparent;border-color:currentColor;color:var(--navy);}
.btn-light{background:var(--paper);color:var(--navy);box-shadow:var(--shadow-sm);}
.btn-block{width:100%;justify-content:center;}

/* ---------- Hero ---------- */
.hero{padding:3.5rem 0 3rem;}
.hero .container{
  display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center;
}
@media (max-width:860px){.hero .container{grid-template-columns:1fr;text-align:center;}}
.hero-avatar{
  width:170px;height:170px;border-radius:50%;object-fit:cover;
  border:4px solid var(--gold);box-shadow:var(--shadow);margin:0 auto 1.2rem;
}
.social-row{display:flex;gap:.8rem;margin-top:1.3rem;}
@media (max-width:860px){.social-row{justify-content:center;}}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;
}
.social-row a:hover{background:var(--gold);}
.social-row svg{width:20px;height:20px;fill:currentColor;}

/* ---------- Sections génériques ---------- */
.section{padding:3.5rem 0;}
.section-alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-navy{background:var(--navy);color:#f2eee0;}
.section-navy h1,.section-navy h2,.section-navy h3{color:#fff;}
.section-navy .lede{color:#cfd3ea;}
.text-center{text-align:center;}

/* ---------- Grille de catalogue (accueil) ---------- */
.catalogue-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.8rem;margin-top:2rem;
}
.book-card{
  background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow-sm);
  overflow:hidden;display:flex;flex-direction:column;border-top:5px solid var(--accent);
  transition:transform .18s ease, box-shadow .18s ease;
}
.book-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.book-card img{aspect-ratio:3/4;object-fit:cover;width:100%;}
.book-card .book-card-body{padding:1.3rem 1.4rem 1.6rem;display:flex;flex-direction:column;flex:1;}
.book-card h3{margin-bottom:.4rem;font-size:1.15rem;}
.book-card .tag{
  align-self:flex-start;font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--accent);border-radius:2em;padding:.2em .8em;margin-bottom:.6rem;
}
.book-card p{color:var(--ink-soft);font-size:.95rem;flex:1;}
.book-card .btn{margin-top:.8rem;align-self:flex-start;}

/* ---------- Cartes "pourquoi c'est gratuit / perso / cadeau" ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.6rem;margin-top:2rem;}
.feature-card{background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.8rem 1.5rem;text-align:center;}
.feature-card img{width:64px;height:64px;object-fit:contain;margin:0 auto 1rem;}

/* ---------- Page livre ---------- */
.book-hero{padding:3rem 0 2.5rem;}
.book-hero .container{display:grid;grid-template-columns:.85fr 1.15fr;gap:3rem;align-items:center;}
@media (max-width:860px){.book-hero .container{grid-template-columns:1fr;}}
.book-covers{display:flex;gap:1rem;justify-content:center;}
.book-covers a{border-radius:.6rem;overflow:hidden;box-shadow:var(--shadow);flex:1;max-width:220px;}
.book-covers img{width:100%;}
.breadcrumb{font-size:.85rem;color:var(--ink-soft);margin-bottom:1rem;}
.breadcrumb a{color:var(--ink-soft);text-decoration:none;}
.breadcrumb a:hover{text-decoration:underline;}
.badge-serie{
  display:inline-block;background:rgba(18,32,92,.06);color:var(--navy);
  border-radius:2em;padding:.3em 1em;font-size:.8rem;font-weight:700;margin-bottom:1rem;
}
.pitch-list{list-style:none;margin:1.4rem 0;padding:0;}
.pitch-list li{
  position:relative;padding-left:1.7em;margin-bottom:.7em;color:var(--ink-soft);
}
.pitch-list li::before{
  content:"✦";position:absolute;left:0;color:var(--accent);
}
.cta-row{display:flex;flex-wrap:wrap;gap:1rem;margin-top:1.6rem;}

/* ---------- Lightbox couverture (pur CSS, :target) ---------- */
.lightbox{
  position:fixed;inset:0;background:rgba(11,20,64,.92);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:200;padding:2rem;
}
.lightbox:target{opacity:1;visibility:visible;}
.lightbox img{max-height:88vh;max-width:100%;border-radius:.5rem;box-shadow:0 20px 60px rgba(0,0,0,.5);}
.lightbox-close{
  position:absolute;top:1.2rem;right:1.5rem;color:#fff;font-size:2.4rem;line-height:1;
  text-decoration:none;
}

/* ---------- Lead magnet / newsletter ---------- */
.leadmagnet{
  background:linear-gradient(135deg,var(--navy) 0%, var(--navy-deep) 100%);
  color:#fff;border-radius:1.4rem;padding:2.6rem 2.2rem;margin-top:3rem;
  display:grid;grid-template-columns:1.1fr 1fr;gap:2.4rem;align-items:center;
}
@media (max-width:860px){.leadmagnet{grid-template-columns:1fr;}}
.leadmagnet h2{color:#fff;}
.leadmagnet .lede{color:#d9dcf2;}
.leadmagnet-badge{
  display:inline-flex;align-items:center;gap:.5em;background:var(--gold);color:var(--navy-deep);
  font-weight:700;font-size:.8rem;padding:.35em 1em;border-radius:2em;margin-bottom:1rem;
}
form.subscribe-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:1rem;padding:1.6rem;}
form.subscribe-form label{display:block;font-size:.85rem;margin-bottom:.4rem;color:#e4e6f5;}
form.subscribe-form input[type="email"],
form.subscribe-form input[type="text"]{
  width:100%;padding:.85em 1em;border-radius:.6rem;border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.95);font-size:1rem;margin-bottom:.9rem;
}
form.subscribe-form .rgpd-note{font-size:.78rem;color:#c3c7e6;margin-top:.8rem;}
form.subscribe-form .rgpd-note a{color:#fff;}
.honeypot-field{position:absolute;left:-9999px;top:-9999px;opacity:0;height:0;width:0;overflow:hidden;}

/* ---------- Séries / bandeaux ---------- */
.serie-banner{
  position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin:2rem 0;
}
.serie-banner img{width:100%;}
.serie-banner .serie-tag{
  position:absolute;top:1rem;left:1rem;background:var(--gold);color:var(--navy-deep);
  font-weight:700;font-size:.8rem;padding:.4em 1em;border-radius:2em;letter-spacing:.05em;
}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--navy-deep);color:#c7cae2;padding:3rem 0 2rem;}
footer.site-footer a{color:#fff;text-decoration:none;}
footer.site-footer a:hover{text-decoration:underline;}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem;margin-bottom:2rem;}
@media (max-width:700px){.footer-cols{grid-template-columns:1fr;}}
.footer-cols h4{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:1rem;}
.footer-cols ul{list-style:none;margin:0;padding:0;}
.footer-cols li{margin-bottom:.6em;font-size:.92rem;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:1.5rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.6rem;font-size:.82rem;
}

/* ---------- Téléchargements (page merci) ---------- */
.download-group{text-align:left;margin-bottom:3.5rem;padding-top:2.4rem;border-top:1px solid var(--line);}
.download-group:first-child{padding-top:0;border-top:none;}
.download-group:last-child{margin-bottom:0;}
.download-group h3{margin-bottom:1.2rem;}
.download-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.8rem;
}
.download-grid:empty{display:none;margin:0;}

/* ---------- Utilitaires ---------- */
.mt-0{margin-top:0;}
.center-col{max-width:760px;margin:0 auto;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;}