/* ============================================================
   BLOG — Institut Evolution
   Styles : index blog (grille de cartes) + article reader
   ============================================================ */

/* ─── Multilingue : affichage/masquage par langue ─── */
/* Le système i18n.js met à jour html[lang] (pas html[data-lang]) */
html[lang="fr"] [data-lang-content]:not([data-lang-content="fr"]) { display: none; }
html[lang="en"] [data-lang-content]:not([data-lang-content="en"]) { display: none; }
html[lang="ar"] [data-lang-content]:not([data-lang-content="ar"]) { display: none; }

/* ─── Header nav (styles dans home.css, absent sur pages blog) ─── */
.header-nav {
    display: flex;
    gap: 1.75rem;
    font-size: 0.875rem;
}
.header-nav a { text-decoration: none; color: var(--text-secondary); }
.header-nav a:hover { color: var(--red); }
.header-nav a[aria-current="page"] { color: var(--red); font-weight: 600; }
@media (max-width: 767px) { .header-nav { display: none; } }

.mobile-nav-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    padding: 0.25rem 0;
    text-decoration: none;
    transition: color 0.2s;
}
.mobile-nav-link:hover { color: var(--red); }

/* ─── Breadcrumb ─── */
/* Bug fix: le header est fixed à ~77px — le breadcrumb doit commencer en dessous */
.breadcrumb {
    margin-top: 77px;
    padding: 0.75rem 1.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}
.breadcrumb a:hover { color: var(--red); }
.breadcrumb-sep { margin: 0 0.4rem; }

/* ═══════════════════════════════════
   INDEX BLOG — blog.html
═══════════════════════════════════ */

/* Bug fix: header fixed → offset pour que le contenu commence sous le header */
.blog-hero {
    background: var(--bg-secondary);
    padding: calc(77px + 3rem) 1.5rem 3.5rem;
    text-align: center;
}
/* Les divs data-lang-content dans le hero doivent hériter du text-align */
.blog-hero [data-lang-content] { text-align: center; }
.blog-hero-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--red);
    margin-bottom: 1rem;
}
.blog-hero h1 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}
.blog-hero p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 50ch;
    margin: 0 auto;
}

.blog-index {
    max-width: 1140px;
    margin: 0 auto;
    padding: 3.5rem 1.5rem 5rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

/* Carte article */
.blog-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.06);
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.blog-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(245,20,98,0.1), 0 12px 40px rgba(0,0,0,0.08);
}

.blog-card-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    flex-shrink: 0;
}
.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}
.blog-card:hover .blog-card-img img { transform: scale(1.04); }

.blog-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.5rem;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}
.blog-card-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--red);
    background: var(--red-light, #FDE7EF);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}
.blog-card-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.blog-card-read {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.blog-card-read::before { content: "· "; }

.blog-card-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 0.6rem;
}
.blog-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 1.25rem;
}
.blog-card-cta {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--red);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}
.blog-card-cta::after {
    content: "→";
    transition: transform 0.2s;
}
.blog-card:hover .blog-card-cta::after { transform: translateX(4px); }

/* ═══════════════════════════════════
   PAGE ARTICLE — blog/*.html
═══════════════════════════════════ */

.article-outer {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem 5rem;
}

/* Header article */
.article-header {
    margin-bottom: 2.5rem;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}
.article-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--red);
    background: var(--red-light, #FDE7EF);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}
.article-date,
.article-read-time {
    font-size: 0.82rem;
    color: var(--text-secondary);
}
.article-read-time::before { content: "· "; }

.article-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.6rem, 3.5vw, 2.25rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 1rem;
}

.article-cover {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2.5rem;
    aspect-ratio: 16/7;
}
.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Corps de l'article */
.article-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-primary);
}
.article-body h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2.5rem 0 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}
.article-body h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.75rem 0 0.5rem;
}
.article-body p { margin-bottom: 1.25rem; }
.article-body ul,
.article-body ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}
.article-body li { margin-bottom: 0.4rem; }
.article-body strong { font-weight: 600; color: var(--text-primary); }
.article-body em { color: var(--red); font-style: normal; font-weight: 600; }

/* Encadré mise en avant */
.article-body .callout {
    background: var(--bg-secondary);
    border-left: 4px solid var(--red);
    border-radius: 0 10px 10px 0;
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    font-size: 0.97rem;
}
.article-body .callout p:last-child { margin-bottom: 0; }

/* RTL pour arabe */
[data-lang-content="ar"] {
    direction: rtl;
    text-align: right;
    font-size: 1.1rem;
    line-height: 1.9;
}
[data-lang-content="ar"] .article-body h2,
[data-lang-content="ar"] .article-body h3 { text-align: right; }
[data-lang-content="ar"] .article-body ul,
[data-lang-content="ar"] .article-body ol { padding-left: 0; padding-right: 1.5rem; }
[data-lang-content="ar"] .article-body .callout { border-left: none; border-right: 4px solid var(--red); border-radius: 10px 0 0 10px; }

/* CTA bas d'article */
.article-cta {
    background: linear-gradient(135deg, var(--red) 0%, #c91050 100%);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    color: #fff;
    margin: 3rem 0;
}
.article-cta h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}
.article-cta p {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}
.article-cta .btn-primary-v2 {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #fff;
    color: var(--red);
    padding: 0.85rem 1.75rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}
.article-cta .btn-primary-v2:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* Articles liés */
.related-articles {
    margin-top: 3rem;
}
.related-title {
    font-family: 'Poppins', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}
.related-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(245,20,98,0.12), 0 4px 16px rgba(0,0,0,0.08);
}
.related-card-img {
    height: 130px;
    overflow: hidden;
}
.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-card-body { padding: 0.9rem 1rem; }
.related-card-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--red);
    display: block;
    margin-bottom: 0.3rem;
}
.related-card-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

/* ═══════════════════════════════════
   FOOTER V2 — styles partagés
   (home.css n'est pas chargé sur les pages blog)
═══════════════════════════════════ */
.footer-v2 {
    background: var(--footer-bg);
    color: var(--footer-text);
    font-size: 0.875rem;
}
.footer-inner {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 2rem 2.5rem;
}
.footer-logo-img {
    height: 36px;
    width: auto;
    margin-bottom: 0.85rem;
    display: block;
}
.footer-tagline {
    font-size: 0.825rem;
    color: var(--footer-text);
    line-height: 1.5;
    margin-bottom: 1.25rem;
    max-width: 26ch;
}
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.825rem;
    color: var(--footer-text);
    line-height: 1.4;
}
.footer-contact svg { flex-shrink: 0; margin-top: 2px; color: #666; }
.footer-contact a { color: var(--footer-text); text-decoration: none; transition: color 0.2s; }
.footer-contact a:hover { color: #fff; }
.footer-col-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #fff;
    margin-bottom: 1rem;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.footer-links a {
    color: var(--footer-text);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color 0.2s;
}
.footer-links a:hover { color: #fff; }
.footer-bottom {
    text-align: center;
    font-size: 0.78rem;
    color: #555;
    padding: 1.25rem 2rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}

/* ═══════════════════════════════════
   FAQ ACCORDION
═══════════════════════════════════ */
.faq-accordion {
    margin: 0.5rem 0 1.5rem;
}
.faq-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 0.6rem;
    overflow: hidden;
    background: var(--bg-primary);
}
.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1.4;
}
.faq-question:hover { color: var(--red); }
.faq-item.is-open .faq-question { color: var(--red); }
.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}
.faq-item.is-open .faq-icon { transform: rotate(180deg); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.faq-item.is-open .faq-answer { max-height: var(--faq-h, 600px); }
.faq-answer-inner {
    padding: 0 1.25rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 0.9rem;
}
.faq-answer-inner p:last-child { margin-bottom: 0; }
/* RTL accordion */
[data-lang-content="ar"] .faq-question { text-align: right; flex-direction: row-reverse; }

/* ─── CTA inline (milieu d'article) — bandeau fin ─── */
.article-cta--inline {
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
    border-radius: 10px;
    text-align: center;
}
.article-cta--inline [data-lang-content] {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}
.article-cta--inline h3 { font-size: 0.95rem; margin: 0; color: #fff; }
.article-cta--inline p { display: none; }
.article-cta--inline .btn-primary-v2 {
    padding: 0.6rem 1.4rem;
    font-size: 0.85rem;
}

/* ─── Responsive ─── */
@media (max-width: 767px) {
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2.5rem 1.25rem 2rem;
    }
}
@media (max-width: 600px) {
    .blog-grid { grid-template-columns: 1fr; }
    .blog-hero { padding: calc(77px + 2rem) 1rem 2.5rem; }
    .article-cover { aspect-ratio: 16/9; }
    .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 400px) {
    .related-grid { grid-template-columns: 1fr; }
}