*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --indigo: #7B7CFF;
  --indigo-dark: #6364e0;
  --purple: #1A1A4E;
  --white: #FFFFFF;
  --bg: #F7F5EF;
  --border: #E2E8F0;
  --text: #1E293B;
  --muted: #64748B;
}
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', system-ui, sans-serif; color: var(--text); background: var(--white); line-height: 1.7; }

/* HEADER */
.site-header { background: var(--white); border-bottom: 1px solid var(--border); padding: 0 2rem; position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 900px; margin: 0 auto; height: 65px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.4rem; font-weight: 800; color: var(--purple); text-decoration: none; letter-spacing: -0.5px; }
.logo span { color: var(--indigo); }
.btn-header { background: var(--indigo); color: white; padding: 0.5rem 1.2rem; border-radius: 8px; font-size: 0.88rem; font-weight: 700; text-decoration: none; transition: background 0.2s; }
.btn-header:hover { background: var(--indigo-dark); }

/* ARTICLE */
.article-hero { background: linear-gradient(135deg, var(--purple), #2D2758); padding: 3.5rem 2rem 3rem; text-align: center; }
.article-hero .breadcrumb { color: #94A3B8; font-size: 0.8rem; margin-bottom: 1rem; }
.article-hero .breadcrumb a { color: #94A3B8; text-decoration: none; }
.article-hero .breadcrumb a:hover { color: white; }
.article-hero h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; color: white; line-height: 1.25; letter-spacing: -0.5px; max-width: 750px; margin: 0 auto 1rem; }
.article-hero .intro { color: #CBD5E1; font-size: 1rem; max-width: 650px; margin: 0 auto; line-height: 1.7; }

.article-body { max-width: 780px; margin: 0 auto; padding: 3rem 2rem; }
.article-body h2 { font-size: 1.4rem; font-weight: 800; color: var(--purple); margin: 2.5rem 0 1rem; letter-spacing: -0.3px; }
.article-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin: 1.8rem 0 0.7rem; }
.article-body p { font-size: 0.97rem; color: var(--text); margin-bottom: 1.2rem; }
.article-body ul, .article-body ol { margin: 0.5rem 0 1.2rem 1.5rem; }
.article-body li { font-size: 0.97rem; margin-bottom: 0.5rem; }
.article-body strong { color: var(--purple); }

/* CTA BOX */
.cta-box { background: linear-gradient(135deg, var(--purple), #2D2758); border-radius: 18px; padding: 2rem; text-align: center; margin: 2.5rem 0; }
.cta-box h3 { color: white; font-size: 1.2rem; font-weight: 800; margin-bottom: 0.6rem; }
.cta-box p { color: #CBD5E1; font-size: 0.9rem; margin-bottom: 1.3rem; }
.btn-cta { display: inline-block; background: var(--indigo); color: white; padding: 0.85rem 2rem; border-radius: 10px; font-weight: 700; text-decoration: none; font-size: 0.95rem; transition: all 0.2s; }
.btn-cta:hover { background: var(--indigo-dark); transform: translateY(-2px); }

/* LIENS INTERNES */
.internal-links { background: var(--bg); border: 1px solid var(--border); border-radius: 16px; padding: 1.8rem; margin: 2.5rem 0; }
.internal-links h3 { font-size: 1rem; font-weight: 700; color: var(--purple); margin-bottom: 1rem; }
.internal-links ul { list-style: none; margin: 0; }
.internal-links li { margin-bottom: 0.5rem; }
.internal-links a { color: var(--indigo); text-decoration: none; font-size: 0.92rem; font-weight: 600; }
.internal-links a:hover { text-decoration: underline; }

/* FAQ */
.faq-section { margin: 2.5rem 0; }
.faq-section > h2 { font-size: 1.4rem; font-weight: 800; color: var(--purple); margin: 0 0 1.2rem; letter-spacing: -0.3px; }
.faq-item { border-bottom: 1px solid var(--border); padding: 1.3rem 0; }
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-question { font-size: 1rem; font-weight: 700; color: var(--purple); margin-bottom: 0.5rem; }
.faq-answer { font-size: 0.95rem; color: var(--text); margin: 0; line-height: 1.7; }

/* FOOTER */
.site-footer { background: var(--purple); color: #64748B; padding: 1.5rem 2rem; text-align: center; font-size: 0.82rem; margin-top: 4rem; }
.site-footer a { color: #94A3B8; text-decoration: none; }

@media (max-width: 768px) {
  .article-body { padding: 2rem 1.2rem; }
  .article-hero { padding: 2.5rem 1.2rem 2rem; }
}