/*
Theme Name: Carnets Naturalistes
Theme URI: https://carnets-naturalistes.fr
Author: Patrimoine Digital
Description: Thème éditorial « carnet de terrain » pour pages piliers et pages enfants. Fond papier vintage, titres manuscrits.
Version: 1.1.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: cn
*/

/* ---------- Tokens ---------- */
:root{
  --paper:#f3ead6;          /* papier vieilli */
  --paper-light:#f8f2e3;    /* feuille posée */
  --paper-edge:#e4d5b4;     /* bords jaunis */
  --ink:#2f2a22;            /* encre sépia foncé */
  --ink-soft:#5e5444;
  --muted:#857a66;
  --line:#d8c9a8;
  --moss:#4a6a3a;           /* vert mousse */
  --moss-soft:#e6e7cf;
  --rust:#a4492f;           /* marge rouge / accents */
  --tape:rgba(214,196,150,.72);
  --max:1180px;
  --radius:4px;
  --shadow:0 1px 2px rgba(60,45,20,.08),0 8px 22px rgba(60,45,20,.10);
  --font-hand:"Caveat","Segoe Print","Bradley Hand",cursive;
  --font-text:"Lora",Georgia,"Times New Roman",serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);font-family:var(--font-text);font-size:18px;line-height:1.72;
  background-color:var(--paper);
  /* grain papier + vignettage jauni, 100% CSS */
  background-image:
    radial-gradient(ellipse at center,rgba(255,250,235,0) 55%,rgba(170,135,70,.16) 100%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .45 0 0 0 0 .36 0 0 0 0 .2 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-attachment:fixed,scroll;
}
a{color:var(--moss);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--rust)}
img{max-width:100%;height:auto}
::selection{background:#e9d9a6}
.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}
.screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Typo manuscrite ---------- */
h1,h2,h3,.site-brand,.footer-brand,.toc strong{font-family:var(--font-hand);font-weight:700;color:var(--ink);letter-spacing:0}
h1{font-size:clamp(2.6rem,6vw,4.4rem);line-height:1;margin:.15em 0 .25em}
h2{font-size:clamp(2rem,3.4vw,2.7rem);line-height:1.08}
h3{font-size:1.65rem;line-height:1.15}
.eyebrow,.meta,.note-card-meta{font-family:var(--font-text);font-style:italic;color:var(--muted);font-size:.9rem}
.eyebrow{margin:0}
.eyebrow a{color:var(--rust);text-decoration:none}
em,i{color:var(--ink-soft)} /* noms scientifiques */

/* soulignement « au crayon » */
.hero h1,.pillar-hero h1,.section-head h2{
  background:linear-gradient(transparent 82%,rgba(164,73,47,.22) 82%,rgba(164,73,47,.22) 94%,transparent 94%);
  display:inline;box-decoration-break:clone;-webkit-box-decoration-break:clone;
}

/* ---------- Header ---------- */
.site-header{background:rgba(243,234,214,.94);backdrop-filter:blur(4px);border-bottom:1px dashed var(--line);position:sticky;top:0;z-index:50}
.site-header .container{width:min(calc(100% - 40px),1400px)}
.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:34px}
.site-branding{flex:0 0 auto;display:flex;align-items:center;min-width:0}
.site-brand{color:var(--ink);text-decoration:none;font-size:2rem;line-height:1}
.custom-logo-link{display:flex;align-items:center;line-height:0}
.custom-logo{display:block;width:auto;max-width:270px;max-height:54px;object-fit:contain}
.main-nav{margin-left:auto;min-width:0}
.main-nav ul{display:flex;align-items:center;justify-content:flex-end;gap:clamp(14px,1.6vw,28px);list-style:none;margin:0;padding:0}
.main-nav li{white-space:nowrap}
.main-nav a{display:block;font-family:var(--font-hand);font-size:1.45rem;line-height:1;color:var(--ink);text-decoration:none;padding:24px 0 20px;border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav .current-menu-item>a,.main-nav .current_page_item>a,.main-nav .current-page-ancestor>a{color:var(--rust);border-bottom-color:var(--rust)}

/* ---------- Heros ---------- */
.hero,.pillar-hero,.child-hero{padding:56px 0 36px}
.punchline,.lede{font-size:clamp(1.05rem,1.8vw,1.25rem);color:var(--ink-soft);max-width:720px;margin-top:1.1em}
.punchline p:last-child{margin-bottom:0}
.two-col{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:48px;align-items:center}
.two-col.no-media{grid-template-columns:minmax(0,820px)}
.breadcrumb{font-size:.88rem;font-style:italic;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:inherit}
.meta{display:flex;gap:14px;flex-wrap:wrap;margin:10px 0 24px}
.meta span+span::before{content:"✦";margin-right:14px;font-style:normal;color:var(--rust);font-size:.7em}

/* Photo « scotchée » */
.feature-image{margin:0}
.taped{position:relative;background:#fffdf6;padding:12px 12px 38px;box-shadow:var(--shadow);transform:rotate(1.4deg)}
.taped img{display:block;width:100%}
.taped::before,.taped::after{content:"";position:absolute;width:92px;height:26px;background:var(--tape);top:-12px;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.taped::before{left:-18px;transform:rotate(-32deg)}
.taped::after{right:-18px;transform:rotate(30deg)}

/* ---------- Sections / cartes ---------- */
.section{padding:40px 0}
.section-head{margin-bottom:28px}
.section-head h2{margin:.1em 0 0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}

.note-card{
  position:relative;background:var(--paper-light);border:1px solid var(--paper-edge);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
}
.notes-grid .note-card:nth-child(3n+1){transform:rotate(-.6deg)}
.notes-grid .note-card:nth-child(3n+2){transform:rotate(.5deg)}
.notes-grid .note-card:nth-child(3n){transform:rotate(-.25deg)}
.note-card:hover{transform:rotate(0) translateY(-3px);box-shadow:0 2px 4px rgba(60,45,20,.1),0 14px 30px rgba(60,45,20,.16)}
.note-card-img img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;filter:sepia(.12) saturate(.95)}
.note-card-body{padding:18px 22px 20px;border-left:2px solid rgba(164,73,47,.35);margin-left:18px}
.note-card h3{margin:.2em 0 .35em;font-size:1.7rem}
.note-card h3 a{color:var(--ink);text-decoration:none}
.note-card h3 a:hover{color:var(--moss)}
.note-card p{margin:.3em 0;font-size:.98rem}
.note-card-meta{margin-top:.8em!important;font-size:.82rem!important}

/* Emplacement de formulaire (si activé via filtre) */
.lead-card{margin-top:28px;background:var(--paper-light);border:1px dashed var(--moss);padding:24px;max-width:560px}
.button,.wp-block-button__link{display:inline-block;background:var(--moss);color:#fbf6e8!important;text-decoration:none;border:0;border-radius:3px;padding:11px 20px;font-family:var(--font-text);font-weight:600}
.button:hover,.wp-block-button__link:hover{background:var(--rust)}

/* ---------- Feuille d'article ---------- */
.paper-sheet{
  position:relative;background:var(--paper-light);border:1px solid var(--paper-edge);
  box-shadow:var(--shadow);padding:44px 48px 44px 72px;
}
/* marge rouge du cahier */
.paper-sheet::before{content:"";position:absolute;top:0;bottom:0;left:46px;border-left:1.5px solid rgba(164,73,47,.38)}
.article-layout{display:grid;grid-template-columns:250px minmax(0,800px);gap:48px;align-items:start;justify-content:center}
.article-layout>aside{position:sticky;top:100px;align-self:start}
.toc{background:var(--paper-light);border:1px solid var(--paper-edge);padding:18px 20px;box-shadow:var(--shadow);transform:rotate(-.6deg)}
.toc strong{display:block;font-size:1.7rem;margin-bottom:6px}
.toc ul{list-style:none;padding:0;margin:0;font-size:.92rem;line-height:1.4}
.toc li+li{margin-top:8px}
.toc a{color:var(--ink-soft);text-decoration:none}
.toc a:hover{color:var(--rust)}
.toc .toc-h3{padding-left:14px;font-size:.86rem}

.article-content{font-size:1.06rem}
.article-content h2,.article-content h3{scroll-margin-top:100px}
.article-content h2{margin:1.8em 0 .4em;font-size:2.4rem;color:var(--moss)}
.article-content h3{margin:1.5em 0 .3em;font-size:1.85rem}
.article-content>*:first-child,.article-content .deferred-intro-media+h2{margin-top:0}
.article-content blockquote{margin:1.6em 0;padding:.6em 1.2em;border-left:3px solid var(--moss);background:var(--moss-soft);font-style:italic}
.article-content table{width:100%;border-collapse:collapse;font-size:.95rem}
.article-content th,.article-content td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.article-content th{background:var(--moss-soft)}
.article-content figure{margin:1.8em 0}
.article-content figcaption,.wp-element-caption{font-family:var(--font-hand);font-size:1.3rem;color:var(--ink-soft);text-align:center;margin-top:6px}
.article-content ul li::marker{color:var(--rust)}
.intro-copy{font-size:1.1rem;color:var(--ink-soft)}
.intro-copy>*:first-child{margin-top:0}
.deferred-intro-media{margin:0 0 28px}
.pillar-content{max-width:860px;margin-inline:auto}

/* ---------- Footer ---------- */
.site-footer{margin-top:72px;padding:44px 0;background:#3a3226;color:#e9dfc8;border-top:4px double #6b5c44}
.site-footer a{color:#f3ead6}
.footer-brand{font-size:2rem;color:#f3ead6}
.footer-inner{display:flex;justify-content:space-between;gap:32px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li+li{margin-top:6px}

/* Archives (posts) */
.posts-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}
.post-card{background:var(--paper-light);border:1px solid var(--paper-edge);box-shadow:var(--shadow)}
.post-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.post-card-body{padding:20px}
.post-card h2,.post-card h3{margin:.2em 0;font-size:1.7rem}
.post-card h2 a,.post-card h3 a{color:var(--ink);text-decoration:none}

/* ---------- Responsive ---------- */
@media(max-width:1100px){.custom-logo{max-width:220px}.main-nav ul{gap:14px}.main-nav a{font-size:1.25rem}}
@media(max-width:850px){
  .two-col,.article-layout{grid-template-columns:1fr}
  .article-layout>aside{position:relative;top:auto}
  .toc{transform:none}
  .grid,.posts-list{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
  .hero,.pillar-hero,.child-hero{padding:38px 0 24px}
  .paper-sheet{padding:30px 26px 30px 48px}
  .paper-sheet::before{left:30px}
  .taped{transform:rotate(.8deg);margin-top:10px}
}
@media(max-width:560px){
  body{font-size:17px}
  .grid,.posts-list{grid-template-columns:1fr}
  .notes-grid .note-card{transform:none!important}
  .footer-inner{display:block}
  .container{width:min(calc(100% - 24px),var(--max))}
  .paper-sheet{padding:24px 18px 24px 34px}
  .paper-sheet::before{left:20px}
  .article-content h2{font-size:2.1rem}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* ---------- v1.0.1 : page pilier ---------- */
.pillar-intro{align-items:center}
.pillar-intro .toc{position:relative;top:auto;margin:0}
.pillar-intro h1{margin-top:0}
.pillar-featured{margin:0 0 2em}
.pillar-featured img{display:block;width:100%;border:1px solid var(--paper-edge)}
.pillar-content .pillar-featured+h2{margin-top:0}
@media(max-width:850px){.pillar-intro .toc{position:relative;top:auto}}

/* ---------- v1.1.0 : hero accueil + carnet animé ---------- */
.home-hero{padding:56px 0 24px}
.home-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center}
.home-hero-text h1{margin-top:0}

.book-stage{perspective:1600px;width:100%;max-width:560px;margin-inline:auto;animation:cn-stage 18s ease-in-out infinite}
.book{position:relative;width:100%;aspect-ratio:400/280;transform-style:preserve-3d;animation:cn-shift 18s ease-in-out infinite}
.page-left,.page-right,.leaf{position:absolute;top:0;width:50%;height:100%}
.page-left{left:0;transform:translateZ(-6px);animation:cn-left 18s linear infinite}
.page-right{left:50%}
.paper-inner{position:absolute;inset:0;background:#f8f1df;border:1px solid #dccaa3;overflow:hidden}
.page-left .paper-inner,.leaf .back .paper-inner{border-radius:6px 0 0 6px;box-shadow:inset -18px 0 22px -14px rgba(90,65,25,.35),-6px 10px 24px rgba(60,45,20,.18)}
.page-right .paper-inner,.leaf .front .paper-inner{border-radius:0 6px 6px 0;box-shadow:inset 18px 0 22px -14px rgba(90,65,25,.35),6px 10px 24px rgba(60,45,20,.18)}
.paper-inner svg{width:100%;height:100%;display:block}
.hand{font-family:var(--font-hand);font-size:26px;fill:#3b3226}
.hand-s{font-family:var(--font-hand);font-size:13px;fill:#5e5444}
.endpaper{background:#e9dcbc repeating-linear-gradient(45deg,rgba(74,106,58,.10) 0 6px,transparent 6px 14px)}

.leaf{left:50%;transform-origin:left center;transform-style:preserve-3d}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.face.back{transform:rotateY(180deg)}
.cover{animation:cn-cover 18s ease-in-out infinite}
.leaf-1{animation:cn-leaf1 18s ease-in-out infinite}
.leaf-2{animation:cn-leaf2 18s ease-in-out infinite}
.cover-art{position:absolute;inset:0;border-radius:2px 8px 8px 2px;background:#3f5530 linear-gradient(135deg,rgba(255,255,255,.08),rgba(0,0,0,.18));box-shadow:inset 6px 0 0 rgba(0,0,0,.25),8px 12px 26px rgba(40,30,15,.35);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:18px;text-align:center}
.cover-art::before{content:"";position:absolute;inset:12px;border:1.5px solid rgba(233,217,166,.55);border-radius:4px}
.cover-title{font-family:var(--font-hand);font-weight:700;color:#efe1b4;font-size:clamp(1.4rem,3vw,2.1rem);line-height:1.05}
.cover-emblem{width:38%}

@keyframes cn-stage{0%{opacity:0}3%{opacity:1}93%{opacity:1}98%,100%{opacity:0}}
@keyframes cn-shift{0%,6%{transform:translateX(-25%)}14%,97%{transform:translateX(0)}100%{transform:translateX(-25%)}}
@keyframes cn-left{0%,8%{opacity:0}10%,97%{opacity:1}100%{opacity:0}}
@keyframes cn-cover{0%,6%{transform:rotateY(0) translateZ(3px)}15%,97%{transform:rotateY(-180deg) translateZ(3px)}100%{transform:rotateY(0) translateZ(3px)}}
@keyframes cn-leaf1{0%,38%{transform:rotateY(0) translateZ(2px)}47%,97%{transform:rotateY(-180deg) translateZ(2px)}100%{transform:rotateY(0) translateZ(2px)}}
@keyframes cn-leaf2{0%,66%{transform:rotateY(0) translateZ(1px)}75%,97%{transform:rotateY(-180deg) translateZ(1px)}100%{transform:rotateY(0) translateZ(1px)}}

@media(max-width:850px){.home-hero-grid{grid-template-columns:1fr;gap:28px}.book-stage{max-width:460px}}
@media(prefers-reduced-motion:reduce){
  .book-stage,.book,.page-left,.cover,.leaf-1,.leaf-2{animation:none!important}
  .cover{transform:rotateY(-180deg) translateZ(3px)}
}