/*
Theme Name: Talibai
Theme URI: https://talibai.net
Author: Idriss Aji
Description: Thème académique arabe (RTL) pour talibai.net — blog + plateforme d'outils IA (MathSolver العربي & Talkhiss). Design épuré, bleu confiance.
Version: 1.0.2
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: talibai
*/

/* =========================================================
   Design tokens — identité académique arabe
   ========================================================= */
:root{
  /* Palette : bleu confiance académique */
  --ink:        #0d1b2a;   /* texte principal, presque noir bleuté */
  --navy:       #14375f;   /* bleu profond — titres, header */
  --royal:      #1d4ed8;   /* bleu accent — liens, CTA */
  --royal-600:  #1e40af;
  --sky:        #eff4fb;   /* fond de blocs clairs */
  --sky-line:   #d7e2f0;   /* filets, bordures */
  --paper:      #ffffff;
  --muted:      #5b6b7f;   /* texte secondaire */
  --gold:       #c8962f;   /* accent chaud discret (badges, premium) */
  --ok:         #157347;
  --err:        #b42318;

  --radius:     14px;
  --radius-sm:  9px;
  --shadow:     0 1px 2px rgba(13,27,42,.04), 0 8px 28px rgba(20,55,95,.07);
  --shadow-lg:  0 12px 40px rgba(20,55,95,.14);
  --maxw:       1180px;

  --font-body:  "IBM Plex Sans Arabic","Tajawal",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-head:  "Tajawal","IBM Plex Sans Arabic",system-ui,sans-serif;
}

/* =========================================================
   Base RTL
   ========================================================= */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  direction:rtl;
  text-align:right;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.85;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--royal);text-decoration:none;transition:color .15s}
a:hover{color:var(--royal-600)}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy);line-height:1.35;font-weight:800;margin:0 0 .5em}
h1{font-size:2.4rem;letter-spacing:-.01em}
h2{font-size:1.7rem}
h3{font-size:1.3rem}
p{margin:0 0 1.1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* Accessibilité */
:focus-visible{outline:3px solid var(--royal);outline-offset:2px;border-radius:4px}
.skip-link{position:absolute;right:-9999px}
.skip-link:focus{right:12px;top:12px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:999}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* =========================================================
   Header
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--sky-line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:800;font-size:1.35rem;color:var(--navy)}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--royal);box-shadow:0 0 0 4px var(--sky)}
.main-nav{display:flex;gap:6px;margin-inline-start:auto;align-items:center}
/* wp_nav_menu génère une <ul><li> : on neutralise agressivement les styles de liste,
   y compris les puces injectées par d'autres feuilles (ul li::before) */
.site-header .main-nav ul{display:flex!important;flex-direction:row!important;gap:6px;align-items:center;list-style:none!important;margin:0;padding:0}
.site-header .main-nav li{list-style:none!important;margin:0;padding:0;position:relative;float:none!important;display:block}
.site-header .main-nav li::before,.site-header .main-nav li::after,.site-header .main-nav li::marker{content:""!important;display:none!important}
.site-header .main-nav a{display:inline-flex!important;align-items:center;white-space:nowrap;padding:9px 14px;border-radius:9px;color:var(--ink);font-weight:600;font-size:.98rem;line-height:1;text-decoration:none}
.site-header .main-nav a:hover,.site-header .main-nav .current-menu-item>a{background:var(--sky);color:var(--navy)}
.nav-tools-btn{background:var(--navy)!important;color:#fff!important}
.nav-tools-btn:hover{background:var(--royal)!important;color:#fff!important}
.menu-toggle{display:none;background:none;border:1px solid var(--sky-line);border-radius:9px;padding:9px 11px;cursor:pointer}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--navy);margin:4px 0;border-radius:2px}

/* =========================================================
   Hero
   ========================================================= */
.hero{
  background:linear-gradient(180deg,var(--sky) 0%,#fff 100%);
  border-bottom:1px solid var(--sky-line);
  padding:70px 0 60px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset-inline-start:-120px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(29,78,216,.10),transparent 70%);
}
.hero-inner{position:relative;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);font-weight:700;font-size:.85rem;
  color:var(--royal);background:#fff;border:1px solid var(--sky-line);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;box-shadow:var(--shadow)
}
.hero h1{font-size:3rem;margin-bottom:.35em}
.hero .lead{font-size:1.2rem;color:var(--muted);margin-bottom:28px;line-height:1.9}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-head);font-weight:700;font-size:1.02rem;
  padding:14px 26px;border-radius:12px;border:1px solid transparent;cursor:pointer;
  transition:transform .12s, box-shadow .2s, background .2s
}
.btn-primary{background:var(--royal);color:#fff;box-shadow:var(--shadow)}
.btn-primary:hover{background:var(--royal-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--sky-line)}
.btn-ghost:hover{border-color:var(--royal);color:var(--royal)}

/* =========================================================
   Tools grid (accueil)
   ========================================================= */
.section{padding:64px 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head .kicker{font-family:var(--font-head);color:var(--royal);font-weight:700;font-size:.9rem;margin-bottom:8px}
.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.tool-card{
  background:#fff;border:1px solid var(--sky-line);border-radius:var(--radius);
  padding:30px;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .15s, box-shadow .25s, border-color .2s;position:relative;overflow:hidden
}
.tool-card::after{content:"";position:absolute;inset-block-start:0;inset-inline-end:0;width:100%;height:4px;background:var(--royal);transform:scaleX(0);transform-origin:right;transition:transform .3s}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c3d4ea}
.tool-card:hover::after{transform:scaleX(1)}
.tool-icon{width:52px;height:52px;border-radius:13px;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--navy);margin-bottom:18px}
.tool-icon svg{width:26px;height:26px}
.tool-card h3{margin-bottom:.4em}
.tool-card p{color:var(--muted);flex:1;font-size:.98rem}
.tool-card .tool-go{font-family:var(--font-head);font-weight:700;color:var(--royal);margin-top:14px;display:inline-flex;align-items:center;gap:6px}

/* Bandeau confiance */
.trust{background:var(--navy);color:#fff}
.trust .container{display:flex;flex-wrap:wrap;gap:40px;justify-content:space-between;padding-block:44px}
.trust .stat{display:flex;flex-direction:column}
.trust .stat b{font-family:var(--font-head);font-size:2.2rem;line-height:1}
.trust .stat span{color:#a9c2e0;font-size:.95rem;margin-top:6px}

/* =========================================================
   Cartes articles
   ========================================================= */
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--sky-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .15s, box-shadow .25s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.post-card .thumb{display:block;height:200px;flex:0 0 auto;background:var(--sky);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.post-card .body{padding:20px;display:flex!important;flex-direction:column;flex:1 1 auto;visibility:visible!important}
.post-card .cat{font-family:var(--font-head);font-size:.78rem;font-weight:700;color:var(--royal);text-transform:uppercase;letter-spacing:.03em}
.post-card h3{font-size:1.12rem;margin:8px 0;line-height:1.5;display:block!important}
.post-card h3 a{color:var(--navy)}
.post-card h3 a:hover{color:var(--royal)}
.post-card .excerpt{color:var(--muted);font-size:.93rem;margin:0}

/* =========================================================
   Article single
   ========================================================= */
.article{max-width:760px;margin:0 auto;padding:50px 0}
.article-header{margin-bottom:30px}
.article-header .cat{color:var(--royal);font-family:var(--font-head);font-weight:700}
.article-meta{color:var(--muted);font-size:.9rem;margin-top:10px;display:flex;gap:16px;flex-wrap:wrap}
.article-content{font-size:1.08rem}
.article-content h2{margin-top:1.6em}
.article-content h3{margin-top:1.4em}
.article-content ul,.article-content ol{padding-inline-start:1.4em}
.article-content li{margin-bottom:.5em}
.article-content blockquote{border-inline-start:4px solid var(--royal);background:var(--sky);margin:1.5em 0;padding:14px 22px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--navy)}
.article-content img{border-radius:var(--radius);margin:1.5em 0}
.article-content a{text-decoration:underline;text-underline-offset:3px}

/* Encart outil inséré dans un article */
.inline-tool-cta{
  background:linear-gradient(135deg,var(--navy),var(--royal-600));
  color:#fff;border-radius:var(--radius);padding:28px 30px;margin:2em 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap
}
.inline-tool-cta h4{color:#fff;font-family:var(--font-head);margin:0 0 6px;font-size:1.25rem}
.inline-tool-cta p{color:#cfe0f5;margin:0;font-size:.95rem}
.inline-tool-cta .btn{background:#fff;color:var(--navy);white-space:nowrap}
.inline-tool-cta .btn:hover{background:var(--gold);color:#fff}

/* =========================================================
   Outils — layout commun
   ========================================================= */
.tool-page{padding:50px 0 80px}
.tool-hero{max-width:720px;margin-bottom:32px}
.tool-hero .eyebrow{margin-bottom:16px}
.tool-shell{
  background:#fff;border:1px solid var(--sky-line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden
}
.tool-shell-head{padding:20px 26px;border-bottom:1px solid var(--sky-line);display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--sky)}
.tool-shell-head h2{margin:0;font-size:1.2rem}
.quota-badge{font-family:var(--font-head);font-size:.85rem;font-weight:700;color:var(--navy);background:#fff;border:1px solid var(--sky-line);padding:6px 13px;border-radius:999px}
.quota-badge b{color:var(--royal)}
.tool-body{padding:26px}
.field-label{font-family:var(--font-head);font-weight:700;color:var(--navy);margin-bottom:8px;display:block}
textarea.tb-input,input.tb-input,select.tb-input{
  width:100%;font-family:var(--font-body);font-size:1.02rem;color:var(--ink);
  border:1.5px solid var(--sky-line);border-radius:var(--radius-sm);padding:14px 16px;
  background:#fff;resize:vertical;transition:border-color .15s
}
textarea.tb-input{min-height:150px;line-height:1.8}
.tb-input:focus{border-color:var(--royal);outline:none}
.tool-controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:16px}
.tb-select-wrap{display:flex;align-items:center;gap:8px}
.tb-select-wrap label{font-weight:600;color:var(--muted);font-size:.92rem}
select.tb-input{width:auto;padding:10px 14px}
.tool-result{
  margin-top:22px;border:1.5px solid var(--sky-line);border-radius:var(--radius-sm);
  background:var(--sky);padding:22px;min-height:80px;line-height:2;white-space:pre-wrap;
  font-size:1.05rem;color:var(--ink)
}
.tool-result.empty{color:var(--muted);display:flex;align-items:center;justify-content:center;text-align:center}
.tool-result h1,.tool-result h2,.tool-result h3{color:var(--navy)}
.tool-result .katex-block{background:#fff;border-radius:8px;padding:10px 14px;margin:8px 0;overflow-x:auto}
.spinner{width:22px;height:22px;border:3px solid var(--sky-line);border-top-color:var(--royal);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.tool-note{color:var(--muted);font-size:.86rem;margin-top:14px}

/* Paywall */
.paywall{
  margin-top:22px;border:1.5px solid var(--gold);border-radius:var(--radius);
  background:linear-gradient(135deg,#fffdf6,#fff8e8);padding:30px;text-align:center
}
.paywall .lock{width:48px;height:48px;border-radius:12px;background:var(--gold);color:#fff;display:inline-flex;align-items:center;justify-content:center;margin-bottom:14px}
.paywall h3{color:var(--navy);margin-bottom:8px}
.paywall p{color:var(--muted);max-width:440px;margin:0 auto 18px}
.paywall .btn-premium{background:var(--gold);color:#fff}
.paywall .btn-premium:hover{background:#b0821f;color:#fff}
.hidden{display:none!important}

/* =========================================================
   Footer
   ========================================================= */
.site-footer{background:var(--ink);color:#c3cfdd;padding:56px 0 30px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer-grid h4{color:#fff;font-size:1rem;margin-bottom:14px}
.footer-grid a{color:#9fb2c6;display:block;padding:5px 0;font-size:.94rem}
.footer-grid a:hover{color:#fff}
.footer-brand .brand{color:#fff;margin-bottom:12px}
.footer-brand p{font-size:.92rem;color:#8ea3ba}
.footer-bottom{border-top:1px solid #1e3149;margin-top:34px;padding-top:22px;text-align:center;font-size:.88rem;color:#7f93aa}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:900px){
  .posts-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  h1{font-size:2rem}.hero h1{font-size:2.15rem}
  .main-nav{display:none;position:absolute;top:70px;inset-inline:0;background:#fff;flex-direction:column;align-items:stretch;gap:4px;padding:14px;border-bottom:1px solid var(--sky-line);box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .site-header .main-nav ul{flex-direction:column!important;align-items:stretch;gap:4px;width:100%}
  .site-header .main-nav li{width:100%}
  .site-header .main-nav a{width:100%}
  .nav-tools-btn{text-align:center;justify-content:center}
  .menu-toggle{display:block;margin-inline-start:auto}
  .tools-grid{grid-template-columns:1fr}
  .posts-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .trust .container{gap:22px}
  .inline-tool-cta{flex-direction:column;text-align:center}
}