/* PrépaCACES — dernière passe UX / accessibilité / mobile */
:root{--ux-focus:#1565c0;--ux-radius:8px}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{overflow-x:hidden}
/* Les pages quiz utilisent un conteneur centré dans un body flex : la barre retour doit rester au-dessus sans décaler le quiz. */
body{flex-direction:column;align-items:center}
a,button,select,input{ -webkit-tap-highlight-color:transparent }
:focus-visible{outline:3px solid var(--ux-focus)!important;outline-offset:3px}

/* Navigation : lisible, stable et utilisable au pouce */
.site-nav{position:sticky;top:0;z-index:1000}
.site-nav-inner{min-height:84px}
.logo img{max-width:100%;height:auto!important}
.nav-links a{display:inline-flex;align-items:center;min-height:40px;white-space:nowrap}
.nav-links a[aria-current="page"]{color:var(--yellow);font-weight:700}

/* Actions : une vraie zone tactile sur mobile */
.btn,.link-btn,.flb-cta,button{min-height:44px}
.btn{display:inline-flex;align-items:center;justify-content:center}
button{font-family:inherit}

/* Cartes plus faciles à scanner */
.cat-card,.tool-card,.premium-lock-card{border-radius:var(--ux-radius)}
.cat-card h3,.tool-card h3{line-height:1.2}

/* Formulaires / choix */
select,input{min-height:44px;border-radius:6px}

/* Pages de contenu */
.section-head{scroll-margin-top:100px}

/* Quiz : confort tactile et lisibilité */
.options .opt,.opt{min-height:50px}
.question,.questionText{max-width:70ch}

/* Ne pas écraser les layouts d'examen existants */
.exam .controls,.controls{gap:10px;flex-wrap:wrap}

/* Mobile */
@media (max-width:900px){
  .site-nav{position:sticky}
  .site-nav-inner{padding:10px 14px}
  .nav-links{max-width:100%;overflow-x:auto;overflow-y:hidden;flex-wrap:nowrap!important;justify-content:flex-start!important;padding-bottom:3px;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links li{flex:0 0 auto}
  .nav-links a{min-height:38px}
}
@media (max-width:600px){
  .site-nav-inner{padding:8px 12px!important}
  .logo{margin-bottom:7px!important}
  .logo img{height:54px!important;width:min(205px,78vw)!important}
  .hero-ctas{gap:12px}
  .hero-ctas .btn{width:100%}
  .section{padding-left:16px!important;padding-right:16px!important}
  .cat-grid{grid-template-columns:1fr!important}
  .cat-card{padding:20px}
  .cat-actions{display:grid!important;grid-template-columns:1fr}
  .cat-actions .link-btn{width:100%;text-align:center;min-height:46px;display:flex;align-items:center;justify-content:center}
  .tools-grid{gap:14px}
  .tool-card{padding:18px}
  footer{padding-left:18px!important;padding-right:18px!important}
}

/* Bouton retour ajouté sur les pages qui n'ont pas de navigation complète */
.ux-backbar{max-width:1100px;margin:0 auto;padding:12px 18px 0}
.ux-back{display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:9px 14px;border:2px solid var(--black,#151515);background:#fff;color:var(--black,#151515);text-decoration:none;font-family:'Oswald',sans-serif;font-weight:600}
.ux-back:hover{background:var(--black,#151515);color:#fff}

/* Réduit les animations pour les utilisateurs qui le demandent */
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* ===== Navigation mobile — Outils + menu propre ===== */
.mobile-tools-menu,.mobile-more-menu{display:none}
@media (max-width:600px){
  .site-nav-inner{display:flex;flex-direction:column;align-items:stretch;gap:8px}
  .site-nav .logo{align-self:center;margin-bottom:0!important}
  .nav-links{display:flex!important;align-items:center;gap:7px!important;width:100%;padding:0!important;margin:0!important;overflow:visible!important;flex-wrap:nowrap!important;justify-content:flex-start!important}
  .nav-links.mobile-nav-ready>li:not(.mobile-home-item):not(.mobile-train-item):not(.mobile-tools-menu):not(.mobile-premium-item):not(.mobile-more-menu){display:none!important}
  .nav-links>li{flex:1 1 0!important;min-width:0!important}
  .nav-links>li>a,.mobile-nav-button{width:100%;min-height:42px!important;padding:8px 7px!important;border-radius:7px;border:1px solid rgba(21,21,21,.16);background:#fff;color:#151515!important;font-family:'Oswald',sans-serif;font-weight:600;text-decoration:none;display:flex!important;align-items:center;justify-content:center;text-align:center;font-size:13px;line-height:1.05;white-space:nowrap;cursor:pointer}
  .nav-links>li.mobile-premium-item>a{background:#F5B700!important;border-color:#151515!important;color:#151515!important}
  .mobile-tools-menu,.mobile-more-menu{display:block!important;position:relative}
  .mobile-tools-menu .mobile-nav-button{border-color:#151515}
  .mobile-tools-panel,.mobile-more-panel{display:none;position:fixed;top:128px;right:12px;left:auto;z-index:1200;width:min(320px,calc(100vw - 24px));max-width:calc(100vw - 24px);box-sizing:border-box;background:#fff;border:2px solid #151515;border-radius:10px;box-shadow:5px 5px #151515;padding:8px}
  .mobile-tools-panel.is-open,.mobile-more-panel.is-open{display:grid}
  .mobile-tools-panel a,.mobile-more-panel a{display:flex;align-items:center;gap:10px;min-height:46px;padding:10px 12px;border-radius:7px;color:#151515;text-decoration:none;font-family:'Barlow',sans-serif;font-weight:600;font-size:14px}
  .mobile-tools-panel a:hover,.mobile-tools-panel a:focus-visible,.mobile-more-panel a:hover,.mobile-more-panel a:focus-visible{background:#f4f4f4}
  .mobile-tools-panel .tool-mini-icon{width:28px;height:28px;display:flex;align-items:center;justify-content:center;flex:none;background:#F5B700;border:1px solid #151515;border-radius:6px;font-size:15px}
  .mobile-more-panel{right:0;grid-template-columns:1fr}
  .mobile-more-panel a.primary-more{background:#151515;color:#fff}
  body.mobile-menu-open{overflow:hidden}
}

/* ===== Correctif navigation mobile : aucun flash / aucun débordement ===== */
@media (max-width:600px){
  /* Tant que le JS n'a pas construit les 3-4 boutons mobiles, on masque
     l'ancien menu au lieu d'afficher tous les onglets qui se chevauchent. */
  .site-nav .nav-links:not(.mobile-nav-ready)>li{display:none!important}
  .site-nav .nav-links.mobile-nav-ready{overflow:visible!important}
  .site-nav .nav-links.mobile-nav-ready>li{display:block!important}
  .site-nav .nav-links.mobile-nav-ready>li:not(.mobile-train-item):not(.mobile-tools-menu):not(.mobile-premium-item):not(.mobile-more-menu){display:none!important}
  .site-nav .nav-links.mobile-nav-ready>li.mobile-train-item,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-tools-menu,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-premium-item,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-more-menu{flex:1 1 0!important;min-width:0!important}
  .site-nav .nav-links.mobile-nav-ready>li.mobile-train-item>a,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-tools-menu>.mobile-nav-button,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-premium-item>a,
  .site-nav .nav-links.mobile-nav-ready>li.mobile-more-menu>.mobile-nav-button{max-width:100%;box-sizing:border-box}
}