/* ============================================================
   Business Multiplied — feuille de style du blog
   Palette et typo : voir 08_VISUELS_ET_MINIATURES/CHARTE_GRAPHIQUE.md
   Pas de police externe chargée (aucune requête tierce) — cohérence
   avec l'esprit "analytics sans cookies" du média.
   ============================================================ */

:root {
  --navy-900: #0A0F1E;
  --navy-800: #101A30;
  --navy-700: #1E2B47;
  --gold-500: #D4AF37;
  --gold-300: #E9CB6B;
  --white: #FFFFFF;
  --ivory: #F4F1E8;
  --ink: #0C0F16;
  --paper: #FBFAF7;
  --muted: #5B6478;

  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --content-max: 720px;
  --wrap-max: 1080px;
  --radius: 8px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 24px;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--gold-500); text-decoration: none; }
a:hover { color: var(--navy-800); text-decoration: underline; }

/* ---------- Header ---------- */

.site-header {
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-700);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  color: var(--ivory) !important;
  text-decoration: none !important;
  letter-spacing: -0.01em;
}

.brand span {
  color: var(--gold-500) !important;
  font-weight: 700;
}

.nav { display: flex; gap: 24px; }

.nav a {
  color: var(--ivory) !important;
  text-decoration: none !important;
  font-size: 15px;
  opacity: 0.9;
}

.nav a:hover { color: var(--gold-300) !important; opacity: 1; }

/* ---------- Hero (accueil) ---------- */

.hero {
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--ivory);
  padding: 72px 0;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 1.2;
  margin: 0 0 16px;
  max-width: 640px;
  color: var(--white);
}

.hero h1 span { color: var(--gold-500); }

.hero p {
  max-width: 560px;
  font-size: 18px;
  color: #C8CCD8;
  margin: 0 0 28px;
}

.hero .btn { margin-top: 4px; }

/* ---------- Boutons / CTA ---------- */

.btn {
  display: inline-block;
  background: var(--gold-500);
  color: var(--navy-900) !important;
  font-family: var(--font-display);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius);
  text-decoration: none !important;
  transition: background 0.15s ease;
}

.btn:hover { background: var(--gold-300); }

.cta {
  background: var(--navy-900);
  color: var(--ivory);
  border-radius: 12px;
  padding: 32px;
  margin: 48px 0 24px;
}

.cta p { color: var(--ivory); margin-top: 0; }

/* ---------- Liste d'articles (accueil) ---------- */

.post-list {
  padding: 56px 0 72px;
}

.post-list h2 {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--navy-900);
  margin-bottom: 24px;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.post-card {
  background: var(--white);
  border: 1px solid #E7E3D8;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.post-card .meta {
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.post-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 10px;
  line-height: 1.35;
}

.post-card h3 a { color: var(--navy-900); text-decoration: none; }
.post-card h3 a:hover { color: var(--gold-500); }

.post-card p {
  color: var(--muted);
  font-size: 15px;
  flex-grow: 1;
}

.post-card .read-more {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
}

.empty-state {
  border: 1px dashed #D8D3C4;
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  color: var(--muted);
}

/* ---------- Article ---------- */

main.wrap { padding: 56px 24px 24px; }

.post {
  max-width: var(--content-max);
  margin: 0 auto;
}

.post h1 {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.25;
  color: var(--navy-900);
  margin: 0 0 8px;
}

.post > .meta {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 32px;
}

.post h2 {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--navy-900);
  margin: 40px 0 16px;
}

.post h3 {
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--navy-900);
  margin: 28px 0 12px;
}

.post p { margin: 0 0 20px; }
.post strong { color: var(--navy-900); }
.post em { color: var(--navy-800); }

.post .ai-note {
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid #E7E3D8;
  padding-top: 16px;
  margin-top: 32px;
}

/* ---------- Page "à propos" ---------- */

.page {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.page h1 {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--navy-900);
  margin-bottom: 20px;
}

.page p { margin-bottom: 20px; }

/* ---------- 404 ---------- */

.not-found {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 96px 24px;
  text-align: center;
}

.not-found .code {
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 700;
  color: var(--gold-500);
  line-height: 1;
  margin-bottom: 16px;
}

.not-found h1 {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--navy-900);
  margin: 0 0 16px;
}

.not-found p { color: var(--muted); margin-bottom: 28px; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy-900);
  color: #8A93A6;
  border-top: 1px solid var(--navy-700);
  padding: 28px 0;
  margin-top: 48px;
}

.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer a { color: #C8CCD8; }
.site-footer a:hover { color: var(--gold-300); }

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .hero { padding: 48px 0; }
  .hero h1 { font-size: 30px; }
  .post h1 { font-size: 27px; }
  .site-header .wrap { flex-direction: column; gap: 12px; align-items: flex-start; }
  .nav { gap: 16px; }
  main.wrap { padding: 32px 20px 24px; }
}