/* =========================================================================
   HERPETOFILES — feuille de style partagée
   Chargée par l'accueil, les pages de section et les 33 fiches espèces.
   ========================================================================= */

:root{
  --bg:#0c1410; --bg-2:#111c17; --panel:#16241d; --panel-2:#1c2e25;
  --line:#25392f; --line-2:#31493c;
  --txt:#e6efe9; --txt-2:#9fb4a8; --txt-3:#6d8577;
  --moss:#4ade80; --moss-2:#22c55e; --deep:#0f766e;
  --amber:#fbbf24; --clay:#e07a5f; --violet:#a78bfa;
  --amph:#5eead4; --rept:#fbbf24;
  --r:14px; --r-s:9px;
  --mx:1180px;
}
*{box-sizing:border-box; margin:0; padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--txt);
  font-family:system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.65; -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2; letter-spacing:-.02em; font-weight:650}
a{color:inherit; text-decoration:none}
button{font:inherit; color:inherit; background:none; border:none; cursor:pointer}
img{max-width:100%; display:block}
.wrap{max-width:var(--mx); margin:0 auto; padding:0 24px}
.sci{font-style:italic}
.hide{display:none !important}

/* Bilingue sans duplication de page : les deux langues sont dans le HTML
   (bon pour l'indexation), seule celle de <html lang> s'affiche. */
html[lang="fr"] [data-l="en"],
html[lang="en"] [data-l="fr"]{display:none}

/* ---------- NAV ---------- */
header{
  position:sticky; top:0; z-index:50;
  background:rgba(12,20,16,.82); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; gap:28px; height:64px}
.logo{display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:-.03em; font-size:1.12rem}
.logo-mark{
  width:30px; height:30px; border-radius:9px; display:grid; place-items:center;
  background:linear-gradient(145deg,var(--moss),var(--deep)); color:#08120d; font-size:1rem;
}
.nav-links{display:flex; gap:24px; margin-left:auto}
.nav-links a{color:var(--txt-2); font-size:.93rem; font-weight:500; transition:color .15s}
.nav-links a:hover,.nav-links a.on{color:var(--moss)}
.lang{display:flex; border:1px solid var(--line-2); border-radius:999px; overflow:hidden}
.lang button{padding:5px 13px; font-size:.78rem; font-weight:600; color:var(--txt-3); transition:.15s}
.lang button[aria-pressed="true"]{background:var(--moss); color:#08120d}
.burger{display:none; margin-left:auto; font-size:1.5rem; color:var(--txt-2)}

/* ---------- HERO D'ACCUEIL ---------- */
.hero{position:relative; padding:110px 0 96px; overflow:hidden; border-bottom:1px solid var(--line); text-align:center}
.hero::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(70% 55% at 78% 8%, rgba(74,222,128,.12), transparent 62%),
    radial-gradient(55% 50% at 12% 92%, rgba(15,118,110,.16), transparent 60%);
  pointer-events:none;
}
.hero .wrap{position:relative}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; padding:6px 13px;
  border:1px solid var(--line-2); border-radius:999px;
  font-size:.76rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  color:var(--moss); background:rgba(74,222,128,.06); margin-bottom:26px;
}
/* Le titre est l'élément central de la page : gros, capitales, très espacé. */
.wordmark{
  font-size:clamp(2.6rem,9vw,6.4rem); font-weight:800;
  letter-spacing:-.045em; line-height:.95; margin-bottom:22px;
}
.wordmark em{font-style:normal; color:var(--moss)}
.hero p{color:var(--txt-2); font-size:clamp(1rem,2vw,1.16rem); max-width:60ch; margin:0 auto 34px}
.cta{display:flex; gap:12px; flex-wrap:wrap; justify-content:center}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 22px; border-radius:999px; font-weight:600; font-size:.94rem;
  transition:transform .12s, background .15s, border-color .15s;
}
.btn:active{transform:translateY(1px)}
.btn-p{background:var(--moss); color:#08120d}
.btn-p:hover{background:#6ee79b}
.btn-s{border:1px solid var(--line-2); color:var(--txt)}
.btn-s:hover{border-color:var(--moss); color:var(--moss)}
.stats{display:flex; gap:44px; margin-top:58px; flex-wrap:wrap; justify-content:center}
.stat b{display:block; font-size:1.7rem; font-weight:700; letter-spacing:-.03em}
.stat span{font-size:.83rem; color:var(--txt-3)}

/* ---------- SECTIONS ---------- */
section{padding:88px 0; border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:40px; max-width:62ch}
.sec-tag{font-size:.75rem; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--moss); margin-bottom:12px}
.sec-head h2{font-size:clamp(1.6rem,3.4vw,2.2rem); margin-bottom:12px}
.sec-head p{color:var(--txt-2)}

/* ---------- ARBRE ---------- */
.tree-layout{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.05fr); gap:28px; align-items:start}
.card{background:var(--panel); border:1px solid var(--line); border-radius:var(--r)}
.card-head{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:16px 20px; border-bottom:1px solid var(--line);
}
.card-head h3{font-size:.98rem}
.tools{display:flex; gap:6px}
.tool{padding:5px 11px; border:1px solid var(--line-2); border-radius:999px; font-size:.75rem; color:var(--txt-3); transition:.15s}
.tool:hover{color:var(--moss); border-color:var(--moss)}

.tree{padding:14px 16px; max-height:620px; overflow-y:auto}
.tree ul{list-style:none; margin-left:15px; padding-left:13px; border-left:1px dashed var(--line-2)}
.tree li{margin:1px 0}
.node{
  display:flex; align-items:center; gap:8px; width:100%; text-align:left;
  padding:5px 9px; border-radius:var(--r-s); transition:background .13s;
}
.node:hover{background:var(--panel-2)}
.caret{
  width:15px; flex:none; color:var(--txt-3); font-size:.62rem;
  transition:transform .18s; transform:rotate(-90deg);
}
li.open > .node .caret{transform:rotate(0)}
li.open > ul{display:block}
li > ul{display:none}
.rank{
  font-size:.6rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--txt-3); border:1px solid var(--line-2); border-radius:4px; padding:1px 5px; flex:none;
}
.n-name{font-size:.9rem; font-weight:550}
.n-vern{font-size:.78rem; color:var(--txt-3)}
.n-count{margin-left:auto; font-size:.7rem; color:var(--txt-3); flex:none}

/* Le genre est le nœud pivot : il ouvre le panneau latéral. */
.node.genus .n-name{font-style:italic}
.node.genus .rank{color:var(--moss); border-color:rgba(74,222,128,.35)}
.node.genus.active{background:rgba(74,222,128,.13); box-shadow:inset 0 0 0 1px rgba(74,222,128,.3)}

/* L'espèce quitte la page : on la signale comme un lien. */
.node.leaf .n-name{font-style:italic; font-weight:500}
.node.leaf::before{content:""; width:6px; height:6px; border-radius:50%; flex:none; margin-left:15px}
.node.leaf.amph::before{background:var(--amph)}
.node.leaf.rept::before{background:var(--rept)}
.node.leaf::after{content:"↗"; margin-left:auto; color:var(--txt-3); font-size:.72rem; opacity:0; transition:opacity .13s}
.node.leaf:hover::after{opacity:1}
.node.leaf:hover .n-name{color:var(--moss)}

/* ---------- PANNEAU LATÉRAL : LES ESPÈCES DU GENRE ---------- */
.panel{position:sticky; top:88px; overflow:hidden}
.panel-hero{
  padding:22px 24px 18px; border-bottom:1px solid var(--line);
  background:linear-gradient(160deg, var(--panel-2), var(--panel));
}
.pill{
  display:inline-block; padding:3px 10px; border-radius:999px;
  font-size:.7rem; font-weight:700; letter-spacing:.05em; text-transform:uppercase;
}
.pill.amph{background:rgba(94,234,212,.14); color:var(--amph)}
.pill.rept{background:rgba(251,191,36,.14); color:var(--rept)}
.pill.iucn{background:rgba(74,222,128,.12); color:var(--moss)}
.pill.iucn.VU,.pill.iucn.EN,.pill.iucn.CR{background:rgba(224,122,95,.16); color:#f0b8a6}
.pill.iucn.NT{background:rgba(251,191,36,.14); color:var(--rept)}
.pill.prot{background:rgba(167,139,250,.13); color:var(--violet)}
.panel-hero h3{font-size:1.5rem; font-style:italic; margin:10px 0 4px}
.panel-hero .sub{color:var(--txt-2); font-size:.9rem}
.panel-list{padding:14px; display:flex; flex-direction:column; gap:12px; max-height:520px; overflow-y:auto}

/* La carte espèce : image d'abord, c'est elle qui donne envie de cliquer. */
.sp-card{
  display:flex; gap:14px; align-items:stretch;
  background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-s);
  overflow:hidden; transition:border-color .16s, transform .16s;
}
.sp-card:hover{border-color:var(--moss); transform:translateX(3px)}
.sp-card:hover .sp-go{color:var(--moss)}
.thumb{position:relative; width:112px; flex:none; overflow:hidden; background:var(--panel-2)}
.thumb img{width:100%; height:100%; object-fit:cover}
/* Tant qu'aucune photo n'est déposée, le motif tient la place proprement :
   jamais d'icône d'image cassée. */
.thumb::before{
  content:""; position:absolute; inset:0; z-index:0;
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(74,222,128,.20), transparent 60%),
    repeating-linear-gradient(58deg, rgba(255,255,255,.035) 0 2px, transparent 2px 7px),
    linear-gradient(150deg, var(--panel-2), var(--bg-2));
}
.thumb[data-g="rept"]::before{
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(251,191,36,.16), transparent 60%),
    repeating-linear-gradient(58deg, rgba(255,255,255,.035) 0 2px, transparent 2px 7px),
    linear-gradient(150deg, var(--panel-2), var(--bg-2));
}
.thumb img{position:relative; z-index:1}
.sp-card-body{padding:12px 14px 12px 0; flex:1; min-width:0; display:flex; flex-direction:column; justify-content:center}
.sp-card-body .sp-sci{font-style:italic; font-weight:600; font-size:.95rem}
.sp-card-body .sp-vern{font-size:.82rem; color:var(--txt-2); margin-bottom:7px}
.sp-tags{display:flex; gap:6px; flex-wrap:wrap; align-items:center}
.sp-go{font-size:.75rem; color:var(--txt-3); margin-top:8px; transition:color .16s}

.empty{padding:64px 26px; text-align:center; color:var(--txt-3); font-size:.9rem}
.empty div{font-size:2.1rem; margin-bottom:12px; opacity:.5}
.empty p{max-width:34ch; margin:0 auto}

/* ---------- FICHE ESPÈCE (page entière, pleine largeur) ---------- */
.fiche-hero{
  position:relative; min-height:clamp(340px,58vh,540px);
  display:flex; align-items:flex-end;
  border-bottom:1px solid var(--line); overflow:hidden;
}
.fiche-hero .bg{position:absolute; inset:0; z-index:0}
.fiche-hero .bg img{width:100%; height:100%; object-fit:cover}
/* Même logique que les vignettes : le fond vit sans photo. */
.fiche-hero .bg::before{
  content:""; position:absolute; inset:0;
  background:
    radial-gradient(80% 70% at 78% 10%, rgba(74,222,128,.16), transparent 62%),
    radial-gradient(60% 60% at 8% 96%, rgba(15,118,110,.20), transparent 60%),
    repeating-linear-gradient(58deg, rgba(255,255,255,.022) 0 3px, transparent 3px 11px),
    linear-gradient(160deg, var(--panel-2), var(--bg));
}
.fiche-hero[data-g="rept"] .bg::before{
  background:
    radial-gradient(80% 70% at 78% 10%, rgba(251,191,36,.14), transparent 62%),
    radial-gradient(60% 60% at 8% 96%, rgba(120,85,31,.24), transparent 60%),
    repeating-linear-gradient(58deg, rgba(255,255,255,.022) 0 3px, transparent 3px 11px),
    linear-gradient(160deg, var(--panel-2), var(--bg));
}
/* Voile de lisibilité : le texte doit tenir sur n'importe quelle photo. */
.fiche-hero .veil{
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(to top, rgba(12,20,16,.96) 8%, rgba(12,20,16,.72) 42%, rgba(12,20,16,.25) 100%);
}
.fiche-hero .wrap{position:relative; z-index:2; padding-top:56px; padding-bottom:40px}
.crumb{display:flex; gap:8px; flex-wrap:wrap; font-size:.78rem; color:var(--txt-3); margin-bottom:18px}
.crumb a:hover{color:var(--moss)}
.crumb i{font-style:normal; opacity:.5}
.crumb .sci{font-style:italic}
.fiche-hero h1{font-size:clamp(2rem,5.5vw,3.5rem); font-style:italic; margin-bottom:8px}
.fiche-hero .vern{font-size:clamp(1.05rem,2.4vw,1.5rem); color:var(--txt-2); font-weight:500; margin-bottom:20px}
.fiche-tags{display:flex; gap:8px; flex-wrap:wrap}

/* Bandeau de faits, pleine largeur */
.facts-strip{background:var(--bg-2); border-bottom:1px solid var(--line)}
.facts-strip .wrap{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; padding:0}
.fact{padding:22px 24px; border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact span{display:block; font-size:.68rem; text-transform:uppercase; letter-spacing:.09em; color:var(--txt-3); margin-bottom:4px}
.fact b{font-size:1.02rem; font-weight:600}

/* Corps : lecture au centre, encarts à droite */
.fiche-body{padding:72px 0 88px}
.fiche-grid{display:grid; grid-template-columns:minmax(0,1.55fr) minmax(0,1fr); gap:48px; align-items:start}
.block{margin-bottom:44px}
.block h2{
  font-size:.76rem; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  color:var(--moss); margin-bottom:14px;
}
.block p{font-size:1.06rem; color:var(--txt-2); line-height:1.75}
.block.lead p{font-size:1.18rem; color:var(--txt); line-height:1.7}

.aside{position:sticky; top:88px; display:flex; flex-direction:column; gap:20px}
.legal{padding:20px 22px; border-radius:var(--r); font-size:.92rem; line-height:1.6}
.legal.protected{background:rgba(224,122,95,.09); border:1px solid rgba(224,122,95,.28); color:#f0b8a6}
.legal b{display:block; margin-bottom:6px; font-size:.74rem; letter-spacing:.1em; text-transform:uppercase}
.aside-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--r); overflow:hidden}
.aside-card > h3{
  padding:15px 20px; border-bottom:1px solid var(--line); font-size:.74rem;
  letter-spacing:.1em; text-transform:uppercase; color:var(--txt-3);
}
.aside-card .panel-list{padding:12px; gap:10px; max-height:none}
.sibling{display:flex; align-items:center; gap:10px; padding:9px 11px; border-radius:var(--r-s); transition:background .14s}
.sibling:hover{background:var(--panel-2)}
.sibling.self{background:rgba(74,222,128,.1); box-shadow:inset 0 0 0 1px rgba(74,222,128,.25)}
.sibling .dot{width:6px; height:6px; border-radius:50%; flex:none}
.sibling .dot.amph{background:var(--amph)}
.sibling .dot.rept{background:var(--rept)}
.sibling .s-sci{font-style:italic; font-size:.9rem; font-weight:550}
.sibling .s-vern{font-size:.78rem; color:var(--txt-3); margin-left:auto; text-align:right}

/* Navigation espèce précédente / suivante */
.prevnext{display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:16px}
.pn{
  padding:16px 18px; background:var(--panel); border:1px solid var(--line);
  border-radius:var(--r); transition:border-color .16s;
}
.pn:hover{border-color:var(--moss)}
.pn span{display:block; font-size:.68rem; text-transform:uppercase; letter-spacing:.09em; color:var(--txt-3); margin-bottom:5px}
.pn b{font-style:italic; font-size:.94rem; font-weight:600}
.pn.next{text-align:right}

/* ---------- CARTE DE FRANCE (page Rendez-vous) ---------- */
.ev-layout{display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:28px; align-items:start}
.map-card{padding:8px}
svg.fr{width:100%; height:auto; display:block}
.region{
  fill:var(--panel-2); stroke:var(--bg); stroke-width:1.4;
  stroke-linejoin:round; vector-effect:non-scaling-stroke;
  transition:fill .16s; cursor:pointer;
}
.region:hover{fill:var(--line-2)}
.region.sel{fill:var(--moss); stroke:var(--moss); stroke-width:2}
.map-legend{display:flex; align-items:center; gap:9px; padding:10px 14px 6px; font-size:.72rem; color:var(--txt-3)}

/* ---------- ÉTATS VIDES DES PAGES DE SECTION ---------- */
.page-head{padding:72px 0 44px; border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(1.9rem,4.4vw,2.8rem); margin-bottom:12px}
.page-head p{color:var(--txt-2); max-width:62ch}
.hollow{
  margin:56px 0; padding:72px 30px; text-align:center;
  background:var(--panel); border:1px dashed var(--line-2); border-radius:var(--r);
}
.hollow .ico{font-size:2.6rem; margin-bottom:16px; opacity:.55}
.hollow h2{font-size:1.25rem; margin-bottom:10px}
.hollow p{color:var(--txt-2); max-width:46ch; margin:0 auto 22px}

/* ---------- PIED ---------- */
footer{padding:52px 0 40px}
.foot{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; align-items:center}
.foot p{font-size:.83rem; color:var(--txt-3)}
.foot-links{display:flex; gap:20px}
.foot-links a{font-size:.85rem; color:var(--txt-2)}
.foot-links a:hover{color:var(--moss)}

/* ---------- RESPONSIVE ---------- */
@media(max-width:900px){
  .tree-layout,.ev-layout,.fiche-grid{grid-template-columns:1fr}
  .panel,.aside{position:static}
  .facts-strip .wrap{grid-template-columns:1fr 1fr}
  .fact{border-bottom:1px solid var(--line)}
  .fact:nth-child(2){border-right:0}
  .nav-links{
    display:none; position:absolute; top:64px; left:0; right:0;
    flex-direction:column; gap:0; padding:8px 24px 16px;
    background:var(--bg-2); border-bottom:1px solid var(--line);
  }
  .nav-links.on{display:flex}
  .nav-links a{padding:11px 0; border-bottom:1px solid var(--line)}
  .burger{display:block}
  .lang{order:3}
  section{padding:64px 0}
  .fiche-body{padding:52px 0 64px}
  .prevnext{grid-template-columns:1fr}
}
