/* ==========================================================================
   AVIGREF Pendjari — feuille de style principale
   Palette : lumière d'harmattan (minéral pâle / vert réserve / latérite)
   ========================================================================== */

:root{
  /* Palette institutionnelle AVIGREF : vert de conservation + orange d'action */
  --haze:#E8F5E9;          /* fond de page, vert très pâle */
  --bone:#F4FAF5;          /* fond des blocs clairs */
  --ink:#2C3A31;           /* texte courant */
  --ink-soft:#51635A;      /* texte secondaire */
  --deep:#1B5E20;          /* sections foncées, titres */
  --reserve:#2E7D32;       /* vert principal, en-tête */
  --reserve-lite:#A5D6A7;  /* vert clair sur fond foncé */
  --laterite:#E65100;      /* orange d'action */
  --laterite-dark:#BF360C;
  --indigo:#25406B;
  --rule:rgba(27,94,32,.16);
  --rule-dark:rgba(255,255,255,.22);

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Newsreader",Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;

  --pad:clamp(1.25rem,5vw,5.5rem);
  --maxw:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--haze);color:var(--ink);
  font-family:var(--body);font-size:clamp(1rem,.95rem + .25vw,1.125rem);
  line-height:1.62;-webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2.5px solid var(--laterite);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- typographie ---------- */
.eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--reserve);margin:0 0 1.1rem}
.eyebrow.on-dark{color:var(--reserve-lite)}
h1,h2,h3,h4{font-family:var(--display);font-weight:800;line-height:1.03;letter-spacing:-.025em;margin:0}
h2{font-size:clamp(1.9rem,1.2rem + 2.6vw,3.1rem)}
h3{font-size:1.2rem;font-weight:600;letter-spacing:-.01em;line-height:1.2}
h4{font-size:1rem;font-weight:600;letter-spacing:0}
.lede{font-size:clamp(1.1rem,1rem + .5vw,1.35rem);line-height:1.55;max-width:46ch;font-weight:300}
.prose p{margin:0 0 1.15rem;max-width:64ch}
.prose p:last-child{margin-bottom:0}
.prose ul{margin:0 0 1.15rem;padding-left:1.1rem;max-width:64ch}
.prose li{margin-bottom:.5rem}
.muted{color:var(--ink-soft)}
.on-dark .muted,.band-dark .muted{color:rgba(245,246,240,.8)}

/* ---------- en-tête ---------- */
.masthead{position:sticky;top:0;z-index:50;background:var(--reserve);border-bottom:1px solid rgba(255,255,255,.15)}
.masthead .wrap{display:flex;align-items:center;gap:1.2rem;min-height:64px;padding-block:.5rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--bone);margin-right:auto}
.brand img{height:44px;width:auto;display:block}
.brand b{font-family:var(--display);font-weight:800;font-size:1.1rem;letter-spacing:-.02em;display:block}
.brand span{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;color:var(--reserve-lite);line-height:1.5}
.nav{display:flex;flex-wrap:wrap;gap:.4rem 1.15rem;justify-content:flex-end}
.nav a{font-family:var(--mono);font-size:.72rem;letter-spacing:.03em;white-space:nowrap;text-transform:uppercase;color:rgba(245,246,240,.72);text-decoration:none;padding-block:.4rem;border-bottom:1.5px solid transparent;transition:color .2s,border-color .2s}
.nav a:hover{color:var(--bone);border-bottom-color:var(--laterite)}
.nav a[aria-current="page"]{color:var(--bone);border-bottom-color:var(--reserve-lite)}
.lang{display:flex;gap:.4rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em}
.lang b{color:var(--bone);font-weight:500}
.lang span{color:rgba(245,246,240,.34)}
.menu-btn{display:none;background:none;border:1px solid var(--rule-dark);color:var(--bone);font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;padding:.45rem .7rem;border-radius:3px;cursor:pointer}
.drawer{display:none;background:var(--reserve);border-bottom:1px solid rgba(255,255,255,.15)}
.drawer.open{display:block}
.drawer a{display:block;font-family:var(--mono);font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(245,246,240,.8);text-decoration:none;padding:.9rem 0;border-bottom:1px solid rgba(245,246,240,.08)}

/* ---------- hero d'accueil ---------- */
.hero{position:relative;background:var(--deep);color:var(--bone);overflow:hidden}
.hero .wrap{position:relative;z-index:2;padding-block:clamp(4rem,10vw,7.5rem) clamp(5rem,12vw,9rem)}
.hero h1{font-size:clamp(2.6rem,1.4rem + 5.6vw,5.4rem);max-width:16ch}
.hero h1 em{font-style:normal;color:var(--reserve-lite)}
.hero .lede{margin:1.9rem 0 0;color:rgba(245,246,240,.82)}
.cta-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2.6rem}
.btn{display:inline-block;font-family:var(--mono);font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;text-decoration:none;padding:.95rem 1.5rem;border-radius:2px;border:1.5px solid transparent;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.btn-solid{background:var(--laterite);color:var(--bone)}
.btn-solid:hover{background:var(--laterite-dark)}
.btn-ghost{border-color:rgba(245,246,240,.34);color:var(--bone)}
.btn-ghost:hover{border-color:var(--bone);background:rgba(245,246,240,.08)}
.btn-line{border-color:var(--reserve);color:var(--deep)}
.btn-line:hover{background:var(--reserve);color:#fff}
.btn-sm{padding:.55rem .9rem;font-size:.68rem}

/* signature : le méandre de la Pendjari */
.river{position:absolute;inset:auto 0 -2px 0;width:100%;height:auto;z-index:1;pointer-events:none}
.river .stream{fill:none;stroke:var(--reserve-lite);stroke-width:1.4;opacity:.55;stroke-dasharray:2400;stroke-dashoffset:2400;animation:draw 2.6s cubic-bezier(.6,.05,.2,1) .25s forwards}
.river .stream-2{fill:none;stroke:var(--reserve);stroke-width:9;opacity:.28}
.river .village{fill:var(--laterite);opacity:0;animation:pop .5s ease forwards}
.river .village:nth-of-type(1){animation-delay:1.5s}
.river .village:nth-of-type(2){animation-delay:1.75s}
.river .village:nth-of-type(3){animation-delay:2s}
.river .village:nth-of-type(4){animation-delay:2.25s}
.river .village:nth-of-type(5){animation-delay:2.5s}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{to{opacity:1}}

/* ---------- bandeau de page intérieure ---------- */
.page-head{background:var(--deep);color:var(--bone);position:relative;overflow:hidden}
.page-head .wrap{position:relative;z-index:2;padding-block:clamp(3rem,7vw,5rem) clamp(3.5rem,8vw,5.5rem)}
.page-head h1{font-size:clamp(2.1rem,1.4rem + 3.2vw,3.6rem);max-width:20ch}
.page-head .lede{margin-top:1.4rem;color:rgba(245,246,240,.8)}
.page-head .ribbon{position:absolute;inset:auto 0 -1px 0;width:100%;height:auto;opacity:.5;z-index:1;pointer-events:none}
.page-head .ribbon path{fill:none;stroke:var(--reserve-lite);stroke-width:1.2}
.crumbs{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--reserve-lite);margin:0 0 1.3rem}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--bone)}

/* ---------- chiffres clés ---------- */
.figures{background:var(--bone);border-block:1px solid var(--rule)}
.figures .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding-block:2.6rem}
.fig{padding-inline:1.5rem;border-left:1px solid var(--rule)}
.fig:first-child{padding-left:0;border-left:0}
.fig b{display:block;font-family:var(--display);font-weight:800;font-size:clamp(1.7rem,1.2rem + 1.6vw,2.6rem);letter-spacing:-.03em;line-height:1}
.fig span{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:.6rem}

/* ---------- sections ---------- */
.band{padding-block:clamp(3.5rem,8vw,6.5rem)}
.band-dark{background:var(--deep);color:var(--bone)}
.band-bone{background:var(--bone)}
.split{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(2rem,6vw,5rem);align-items:start}
.split-even{grid-template-columns:1fr 1fr}

/* ---------- cartes d'action ---------- */
.actions{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--rule);margin-top:3rem;border:1px solid var(--rule)}
.action{background:var(--haze);padding:clamp(1.5rem,3vw,2.4rem)}
.band-bone .action{background:var(--bone)}
.action .tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--laterite);display:block;margin-bottom:1rem}
.action h3{margin-bottom:.7rem}
.action p{margin:0;font-size:.98rem;color:var(--ink-soft)}

/* ---------- axe détaillé ---------- */
.axis{display:grid;grid-template-columns:minmax(0,.55fr) minmax(0,1fr);gap:clamp(1.5rem,5vw,4rem);padding-block:clamp(2.4rem,5vw,3.6rem);border-top:1px solid var(--rule);align-items:start}
.axis:first-of-type{border-top:0}
.axis .tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--laterite);display:block;margin-bottom:.9rem}
.axis h3{font-size:clamp(1.35rem,1.1rem + .9vw,1.9rem);font-weight:800;letter-spacing:-.02em}

/* ---------- gouvernance ---------- */
.org{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:2.5rem}
.org-cell{background:var(--bone);padding:1.6rem}
.org-cell .lvl{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--reserve);display:block;margin-bottom:.8rem}
.org-cell p{margin:.6rem 0 0;font-size:.94rem;color:var(--ink-soft)}

/* ---------- projets ---------- */
.project{border-top:1px solid var(--rule-dark);padding-block:2.2rem;display:grid;grid-template-columns:minmax(0,.5fr) minmax(0,1fr);gap:clamp(1.2rem,4vw,3rem)}
.project .code{font-family:var(--display);font-weight:800;font-size:1.6rem;letter-spacing:-.02em}
.project .meta{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--reserve-lite);margin-top:.6rem;display:block}
.project p{margin:0;color:rgba(245,246,240,.82)}
.partners{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:2.4rem}
.chip{font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;border:1px solid var(--rule-dark);color:rgba(245,246,240,.86);padding:.6rem 1rem;border-radius:2px}
.band-bone .chip,.band .chip{border-color:var(--rule);color:var(--ink-soft)}

/* ---------- rapports ---------- */
.reports{margin-top:2.6rem;border-top:1px solid var(--rule)}
.report{display:grid;grid-template-columns:auto 1fr auto;gap:1.4rem;align-items:center;padding:1.25rem 0;border-bottom:1px solid var(--rule);text-decoration:none;transition:padding-inline .18s ease,background .18s ease}
.report:hover{padding-inline:.7rem;background:var(--bone)}
.report .yr{font-family:var(--mono);font-size:.78rem;color:var(--laterite);letter-spacing:.06em}
.report .ttl{font-family:var(--display);font-weight:600;font-size:1.02rem}
.report .fmt{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:2rem}
.filter{font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--rule);background:none;color:var(--ink-soft);padding:.5rem .9rem;border-radius:2px;cursor:pointer}
.filter[aria-pressed="true"]{background:var(--reserve);color:var(--bone);border-color:var(--reserve)}

/* ---------- actualités ---------- */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:3rem}
.post{background:var(--haze);border:1px solid var(--rule);display:flex;flex-direction:column;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease}
.band-bone .post{background:var(--bone)}
.post:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(27,94,32,.14)}
.post .thumb{aspect-ratio:16/10;background:linear-gradient(150deg,var(--reserve) 0%,var(--deep) 78%);position:relative;overflow:hidden}
.post .thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 80% at 20% 100%,rgba(230,81,0,.38),transparent 60%)}
.post .thumb img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.post .body{padding:1.3rem 1.4rem 1.6rem}
.post .date{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.post h3{margin:.7rem 0 .5rem}
.post p{margin:0;font-size:.95rem;color:var(--ink-soft)}

/* ---------- article ---------- */
.article{max-width:70ch;margin-inline:auto}
.article .cover{aspect-ratio:16/9;background:linear-gradient(150deg,var(--reserve),var(--deep));margin-bottom:2.5rem;border:1px solid var(--rule)}
.article .cover img{width:100%;height:100%;object-fit:cover}
.article p{margin:0 0 1.3rem}
.article h2{font-size:clamp(1.4rem,1.1rem + 1vw,1.9rem);margin:2.4rem 0 1rem}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,4.5rem);margin-top:2.5rem}
.field{display:block;margin-bottom:1.1rem}
.field span{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:.5rem;color:rgba(245,246,240,.7)}
.field input,.field textarea,.field select{width:100%;background:rgba(245,246,240,.06);border:1px solid rgba(245,246,240,.24);color:var(--bone);font-family:var(--body);font-size:1rem;padding:.8rem .9rem;border-radius:2px}
.field textarea{min-height:130px;resize:vertical}
.coord{font-family:var(--mono);font-size:.86rem;line-height:2;color:rgba(245,246,240,.82)}
.coord b{color:var(--reserve-lite);font-weight:500}
.form-note{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;margin-top:1rem;min-height:1.2rem}
.form-note.ok{color:var(--reserve-lite)}
.form-note.err{color:#E08A72}

/* ---------- états de chargement ---------- */
.loading,.empty{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;color:var(--ink-soft);padding:2rem 0}
.band-dark .loading,.band-dark .empty{color:rgba(245,246,240,.6)}

/* ---------- pied de page ---------- */
.foot{background:#12401A;color:rgba(255,255,255,.72)}
.foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-block:3rem 2rem}
.foot h4{color:var(--bone);font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;margin-bottom:1rem}
.foot a{display:block;text-decoration:none;font-family:var(--mono);font-size:.76rem;letter-spacing:.04em;padding-block:.35rem}
.foot a:hover{color:var(--bone)}
.foot .about{font-family:var(--body);font-size:.95rem;line-height:1.6;max-width:38ch}
.foot .legal{border-top:1px solid rgba(245,246,240,.12);font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;padding-block:1.4rem}

/* ---------- administration ---------- */
.admin-shell{min-height:100vh;background:var(--bone)}
.admin-bar{background:var(--reserve);color:var(--bone)}
.admin-bar .wrap{display:flex;align-items:center;gap:1rem;height:60px}
.admin-bar .brand{margin-right:auto}
.admin-tabs{display:flex;gap:1px;background:var(--rule);border:1px solid var(--rule);margin:2.5rem 0}
.admin-tabs button{flex:1;background:var(--bone);border:0;font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;padding:.9rem;cursor:pointer;color:var(--ink-soft)}
.admin-tabs button[aria-selected="true"]{background:var(--reserve);color:var(--bone)}
.panel{display:none}
.panel.active{display:block}
.card{background:var(--haze);border:1px solid var(--rule);padding:clamp(1.3rem,3vw,2rem);margin-bottom:1.5rem}
.card h3{margin-bottom:1.2rem}
.f{display:block;margin-bottom:1rem}
.f span{display:block;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:.4rem}
.f input,.f textarea,.f select{width:100%;background:var(--bone);border:1px solid var(--rule);color:var(--ink);font-family:var(--body);font-size:1rem;padding:.7rem .8rem;border-radius:2px}
.f textarea{min-height:150px;resize:vertical}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.list-item{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;padding:.9rem 0;border-bottom:1px solid var(--rule)}
.list-item .t{font-family:var(--display);font-weight:600}
.list-item .s{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;color:var(--ink-soft);text-transform:uppercase}
.list-item .acts{display:flex;gap:.5rem}
.badge{font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;padding:.2rem .45rem;border-radius:2px;background:var(--reserve);color:var(--bone)}
.badge.draft{background:var(--ink-soft)}
.login{max-width:420px;margin:12vh auto;padding-inline:var(--pad)}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav{display:none}
  .menu-btn{display:block}
  .split,.split-even{grid-template-columns:1fr}
  .figures .wrap{grid-template-columns:repeat(2,1fr);gap:2rem 0}
  .fig:nth-child(odd){padding-left:0;border-left:0}
  .news{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .org{grid-template-columns:1fr}
  .axis,.project{grid-template-columns:1fr}
  .foot .wrap{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .actions{grid-template-columns:1fr}
  .news{grid-template-columns:1fr}
  .report{grid-template-columns:auto 1fr;row-gap:.3rem}
  .report .fmt{grid-column:2}
  .f-row{grid-template-columns:1fr}
  .foot .wrap{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  .river .stream{stroke-dashoffset:0}
  .river .village{opacity:1}
}


/* ---------- couleur des titres selon le fond ---------- */
.band:not(.band-dark) h1,
.band:not(.band-dark) h2,
.band:not(.band-dark) h3,
.figures .fig b,
.article h1,
.article h2{color:var(--deep)}
.band-dark h1,.band-dark h2,.band-dark h3,
.hero h1,.page-head h1{color:var(--bone)}
.eyebrow{color:var(--reserve)}
.org-cell h3{color:var(--deep)}
.report .ttl{color:var(--deep)}
.card h3{color:var(--deep)}
.list-item .t{color:var(--deep)}


/* ---------- image pleine largeur ---------- */
.visuel{position:relative;overflow:hidden;background:var(--deep)}
.visuel img{width:100%;height:auto;display:block}
.visuel.hauteur-reduite img{max-height:46vh;object-fit:cover}
.visuel figcaption{font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
  color:var(--ink-soft);padding:.7rem var(--pad);background:var(--bone);
  border-bottom:1px solid var(--rule)}


/* ---------- galerie de photos ---------- */
.galerie{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;margin-top:2.4rem}
.galerie-photo{margin:0;background:var(--bone);border:1px solid var(--rule);overflow:hidden}
.band-dark .galerie-photo{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14)}
.galerie-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.galerie-photo figcaption{font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;
  padding:.7rem .9rem;color:var(--ink-soft)}
.band-dark .galerie-photo figcaption{color:rgba(255,255,255,.75)}
@media (max-width:900px){.galerie{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.galerie{grid-template-columns:1fr}}