/*
Theme Name: Sciences & Education
Theme URI: https://scienceseducation.org
Author: Revue Sciences & Education (CIRSE)
Description: Thème académique de la revue Sciences & Education (ISSN 3119-6527). Design encre & safran, optimisé pour l'indexation (Google Scholar, DOAJ, Scopus, WoS) et le responsive mobile/tablette/ordinateur.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: sciences-education
*/

:root{
  --encre:#14213d;--majorelle:#2f4b8f;--papier:#fff;--gris-page:#f5f6f8;
  --filet:#d8dce3;--safran:#b98a2e;--safran-clair:#d9b45c;--texte:#22293a;--texte-2:#5a6275;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Spectral',Georgia,serif;color:var(--texte);background:var(--papier);line-height:1.6;font-size:17px}
.u{font-family:'IBM Plex Sans',sans-serif}
a{color:var(--majorelle);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* Bandeau supérieur */
.topbar{background:#0d1730;color:#c9d2e4;font-family:'IBM Plex Sans',sans-serif;font-size:12.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:7px 24px;gap:12px;flex-wrap:wrap}
.topbar a{color:#e8edf7}

/* Masthead */
.masthead{background:var(--encre);color:#fff;padding:26px 0}
.masthead .wrap{display:flex;align-items:center;gap:22px}
.masthead a.bloc-titre{display:flex;align-items:center;gap:22px;text-decoration:none;color:#fff}
.logo-se{width:76px;height:76px;flex-shrink:0;border-radius:6px;box-shadow:0 4px 14px rgba(0,0,0,.35)}
.titrebloc .titre-site{font-weight:600;font-size:clamp(26px,4vw,40px);letter-spacing:-.5px;line-height:1.08;color:#fff;font-family:'Spectral',Georgia,serif}
.titrebloc .titre-site em{font-style:italic;font-weight:500;color:var(--safran-clair)}
.soustitre{font-family:'IBM Plex Sans',sans-serif;font-size:12px;color:#b7c2d8;margin-top:6px;letter-spacing:.05em;text-transform:uppercase}
.soustitre b{color:var(--safran-clair)}
.masthead .issn-droite{margin-left:auto;text-align:right;font-family:'IBM Plex Sans',sans-serif;font-size:12px;color:#b7c2d8;line-height:1.7}
.masthead .issn-droite strong{color:#fff;letter-spacing:.06em}

/* Navigation */
.nav-principale{border-bottom:1px solid var(--filet);background:var(--papier);position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(20,33,61,.04)}
body.admin-bar .nav-principale{top:32px}
.nav-principale .wrap{display:flex;align-items:center}
#burger{display:none;background:none;border:1px solid var(--filet);border-radius:2px;padding:8px 12px;margin:8px 0;font-family:'IBM Plex Sans',sans-serif;font-size:14px;color:var(--encre);cursor:pointer}
.nav-principale ul{display:flex;gap:0;list-style:none;flex-wrap:wrap;flex:1}
.nav-principale ul li{margin:0}
.nav-principale ul a{display:block;padding:13px 12px;font-family:'IBM Plex Sans',sans-serif;font-size:13.5px;font-weight:500;color:var(--encre)}
.nav-principale ul a:hover{background:var(--gris-page);text-decoration:none}
.nav-principale ul .current-menu-item>a,.nav-principale ul .current_page_item>a{box-shadow:inset 0 -3px 0 var(--safran)}
.nav-principale ul ul{display:none;position:absolute;background:#fff;border:1px solid var(--filet);min-width:220px;z-index:60}
.nav-principale ul li{position:relative}
.nav-principale ul li:hover>ul{display:block}

/* Fil d'Ariane */
.ariane{font-family:'IBM Plex Sans',sans-serif;font-size:12.5px;color:var(--texte-2);padding:16px 0 0}
.ariane a{color:var(--texte-2)}

/* Héro accueil */
.hero{background:var(--gris-page);border-bottom:1px solid var(--filet);padding:44px 0}
.hero .wrap{display:grid;grid-template-columns:280px 1fr;gap:44px;align-items:start}
.couverture{background:linear-gradient(168deg,#1a2a4f 0%,#14213d 55%,#0d1730 100%);color:#fff;aspect-ratio:3/4;padding:26px 24px;display:flex;flex-direction:column;position:relative;box-shadow:0 14px 34px rgba(20,33,61,.3)}
.couverture::after{content:"";position:absolute;inset:9px;border:1px solid rgba(217,180,92,.45);pointer-events:none}
.couv-haut{display:flex;align-items:center;justify-content:space-between;gap:10px}
.couverture .logo-mini{width:44px;height:44px;flex-shrink:0}
.couverture .ct{font-size:23px;font-weight:600;line-height:1.15;margin-top:2px;font-family:'Spectral',serif}
.couverture .ct em{font-style:italic;font-weight:400;color:var(--safran-clair)}
.couv-sous{font-family:'IBM Plex Sans',sans-serif;font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#9fb0cf;margin-top:8px}
.couv-motif{width:100%;margin:auto 0;display:block}
.couverture .cv{font-family:'IBM Plex Sans',sans-serif;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#c9d2e4;line-height:1.8}
.etiquette{font-family:'IBM Plex Sans',sans-serif;font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--safran)}
h2.tsec{font-size:24px;font-weight:600;color:var(--encre);margin:4px 0 4px}
.datepub{font-family:'IBM Plex Sans',sans-serif;font-size:13px;color:var(--texte-2);margin-bottom:18px}
.filet-or{width:44px;height:2px;background:var(--safran);margin:12px 0}

/* Listes d'articles */
.article-item{border-top:1px solid var(--filet);padding:15px 12px;margin:0 -12px;transition:background .18s ease}
.article-item:hover{background:#f8f9fb}
.article-item:last-of-type{border-bottom:1px solid var(--filet)}
.article-item .rub{font-family:'IBM Plex Sans',sans-serif;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--safran)}
.article-item h3{font-size:17.5px;font-weight:500;line-height:1.4;margin:3px 0;font-family:'Spectral',serif}
.article-item h3 a{color:var(--texte)}
.article-item h3 a:hover{color:var(--majorelle);text-decoration:none}
.article-item .meta{font-family:'IBM Plex Sans',sans-serif;font-size:13px;color:var(--texte-2)}
.tout{display:inline-block;margin-top:16px;font-family:'IBM Plex Sans',sans-serif;font-size:14px;font-weight:600}
.tout:hover{text-decoration:none;color:var(--encre)}

/* Sections & contenu */
.section{padding:46px 0;border-bottom:1px solid var(--filet)}
.section h2,.contenu>h2,.contenu .titre-page{font-size:22px;font-weight:600;color:var(--encre);margin-bottom:14px;font-family:'Spectral',serif}
.section h2::after,.contenu .titre-page::after{content:"";display:block;width:46px;height:2px;background:var(--safran);margin-top:8px}
.contenu{padding:32px 0 56px;max-width:840px}
.contenu h2{font-size:20px;font-weight:600;color:var(--encre);margin:26px 0 8px}
.contenu h3{font-size:18px;font-weight:600;color:var(--encre);margin:26px 0 8px}
.contenu p,.contenu li{margin-bottom:12px;font-size:16.5px}
.contenu ol,.contenu ul{padding-left:22px}
.contenu li{margin-bottom:8px}
.contenu blockquote{border-left:3px solid var(--safran);padding:8px 18px;background:#fcfcfd;margin:16px 0;font-style:italic}
.contenu table{border-collapse:collapse;width:100%;margin:16px 0;font-size:15px}
.contenu th,.contenu td{border:1px solid var(--filet);padding:8px 12px;text-align:left}
.contenu th{background:var(--gris-page);font-family:'IBM Plex Sans',sans-serif}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.cols2{display:grid;grid-template-columns:1.4fr 1fr;gap:48px}
.carte{padding:0 4px 10px;border-radius:2px;transition:transform .18s ease}
.carte:hover{transform:translateY(-2px)}
.carte h3{font-size:16.5px;font-weight:600;color:var(--encre);margin-bottom:8px;padding-top:12px;border-top:2px solid var(--encre);transition:border-color .18s ease}
.carte:hover h3{border-top-color:var(--safran)}
.carte p{font-size:15px;color:var(--texte-2)}
.repere{border-left:3px solid var(--safran);padding-left:16px;margin-bottom:16px}
.repere .k{font-family:'IBM Plex Sans',sans-serif;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--texte-2)}
.repere .v{font-size:15.5px;color:var(--encre);font-weight:500}
.encadre{border:1px solid var(--filet);border-left:3px solid var(--safran);background:#fcfcfd;padding:16px 18px;margin:16px 0;font-size:15.5px}

/* Bandeau appel */
.appel{background:var(--encre);color:#e8edf7;padding:38px 0}
.appel .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.appel h2{font-size:22px;font-weight:600;color:#fff}
.appel h2::after{display:none}
.appel p{color:#c9d2e4;font-size:15px;max-width:640px;margin-top:6px}
.btn{font-family:'IBM Plex Sans',sans-serif;font-weight:600;font-size:14px;background:var(--safran);color:#fff;padding:11px 24px;border-radius:2px;white-space:nowrap;display:inline-block;transition:background .18s ease,transform .18s ease}
.btn:hover{background:#a3781f;text-decoration:none;transform:translateY(-1px);color:#fff}
.btn.bleu{background:var(--majorelle)}
.btn.bleu:hover{background:var(--encre)}

/* Page article (single) */
.art-entete{background:var(--gris-page);border-bottom:1px solid var(--filet);padding:32px 0}
.art-entete h1{font-size:clamp(22px,3.4vw,30px);font-weight:600;color:var(--encre);line-height:1.25;max-width:860px;font-family:'Spectral',serif}
.art-entete .auteurs{font-size:16px;margin-top:10px}
.art-entete .infos{font-family:'IBM Plex Sans',sans-serif;font-size:13px;color:var(--texte-2);margin-top:6px}

/* Pied */
.pied{background:var(--encre);color:#b7c2d8;padding:38px 0 26px;font-family:'IBM Plex Sans',sans-serif;font-size:13.5px}
.pied .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.pied h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:10px}
.pied a{color:#dbe3f2}
.pied ul{list-style:none;padding:0}
.pied li{margin-bottom:6px}
.mentions{border-top:1px solid rgba(255,255,255,.15);margin-top:24px;padding-top:14px;text-align:center;font-size:12.5px}
.badge-oa{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.25);padding:6px 12px;border-radius:2px;margin-top:10px;color:#dbe3f2}
.badge-oa .pastille{width:10px;height:10px;border-radius:50%;background:#e0731d}

/* Responsive */
@media(max-width:900px){
  .hero .wrap{grid-template-columns:1fr}
  .couverture{max-width:260px}
  .cols2,.cols3{grid-template-columns:1fr}
  .pied .wrap{grid-template-columns:1fr}
  #burger{display:block}
  .nav-principale ul{display:none;flex-direction:column;width:100%;padding-bottom:8px}
  .nav-principale ul.ouvert{display:flex}
  .nav-principale .wrap{flex-wrap:wrap}
  .masthead .issn-droite{display:none}
  .logo-se{width:60px;height:60px}
  body.admin-bar .nav-principale{top:0}
}
:focus-visible{outline:2px solid var(--safran);outline-offset:2px}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.carte,.btn,.article-item{transition:none}}

/* Compatibilité éditeur WordPress (Gutenberg) */
.wp-block-image{margin:16px 0}
.aligncenter{display:block;margin-left:auto;margin-right:auto}
.alignleft{float:left;margin:0 16px 8px 0}
.alignright{float:right;margin:0 0 8px 16px}