/* ============================================================================
   HCR — Blog (feuille de style AUTONOME)
   ----------------------------------------------------------------------------
   ⚠️ INVARIANT CRITIQUE : les pages /blog/*.html sont générées et committées PAR
   la fonction serverless api/webhook.js (Outrank) — elles NE repassent JAMAIS par
   build.sh. Leur style ne peut donc dépendre d'AUCUNE classe Tailwind (purgée de
   assets/app.css). Tout le rendu du blog vit ici, en CSS vanilla, avec ses propres
   @font-face. Les pages blog ne lient QUE ce fichier (+ /assets/analytics.js).
   Thème = dark premium HCR (charbon #0a0d12 + champagne #c5a572, Cormorant/Inter).
   ============================================================================ */

/* --- Polices auto-hébergées (copie de tailwind-input.css, chemins relatifs à /assets/) --- */
@font-face {
  font-family: 'Inter'; font-style: normal; font-weight: 300 700; font-display: swap;
  src: url('fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter'; font-style: normal; font-weight: 300 700; font-display: swap;
  src: url('fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Cormorant Garamond'; font-style: normal; font-weight: 300 700; font-display: swap;
  src: url('fonts/cormorant-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Cormorant Garamond'; font-style: italic; font-weight: 400; font-display: swap;
  src: url('fonts/cormorant-italic-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #0a0d12;
  --surface: #10141c;
  --surface-2: #161b24;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --brand: #c5a572;
  --brand-soft: #d4b884;
  --brand-deep: #a8854e;
  --text: #e8e6e1;
  --text-soft: #b9bdc6;
  --text-mut: #8b919c;
  --font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --maxw: 48rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body.blog-body {
  margin: 0; background: var(--bg); color: var(--text-soft);
  font-family: var(--font-sans); font-size: 17px; line-height: 1.7;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  display: flex; flex-direction: column; min-height: 100vh;
}
.blog-body ::selection { background: rgba(197, 165, 114, 0.3); color: #fff; }
.blog-body a { color: var(--brand); text-decoration: none; }
.blog-body img { max-width: 100%; height: auto; }
.blog-body :focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 2px; }

/* ---------- En-tête ---------- */
.blog-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 13, 18, 0.85); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.blog-header-inner {
  max-width: 80rem; margin: 0 auto; padding: 0 1.5rem; height: 4.5rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.blog-logo { display: inline-flex; align-items: center; }
.blog-logo img { height: 3rem; width: auto; object-fit: contain; }
.blog-nav { display: flex; align-items: center; gap: 1.25rem; }
.blog-nav a { color: var(--text-soft); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.blog-nav a:hover { color: #fff; }
.blog-nav a.is-active { color: #fff; }
.blog-nav .blog-nav-cta {
  padding: 0.55rem 1.15rem; border-radius: 999px; color: var(--bg); font-weight: 600;
  background: linear-gradient(135deg, var(--brand-soft), var(--brand)); white-space: nowrap;
}
.blog-nav .blog-nav-cta:hover { color: var(--bg); filter: brightness(1.07); }
@media (max-width: 560px) {
  .blog-nav { gap: 0.85rem; }
  .blog-nav a:not(.blog-nav-cta) { display: none; }
}

/* ---------- Conteneur principal ---------- */
.blog-main { flex: 1 0 auto; width: 100%; }
.blog-wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.blog-wrap-wide { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- En-tête d'article ---------- */
.blog-article-head {
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse at top left, #1a1f2b 0%, #11151d 35%, var(--bg) 75%);
  border-bottom: 1px solid var(--line);
  padding: 3.5rem 0 2.75rem;
}
.blog-breadcrumb { font-size: 0.85rem; color: var(--text-mut); margin-bottom: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
.blog-breadcrumb a { color: var(--text-mut); }
.blog-breadcrumb a:hover { color: var(--text); }
.blog-breadcrumb .sep { opacity: 0.5; }
.blog-breadcrumb .current { color: var(--text-soft); }
.blog-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.25rem; }
.blog-tag {
  display: inline-block; padding: 0.3rem 0.8rem; border-radius: 999px; font-size: 0.72rem;
  letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600;
  color: var(--brand-soft); background: rgba(197, 165, 114, 0.1); border: 1px solid rgba(197, 165, 114, 0.22);
}
.blog-title {
  font-family: var(--font-display); font-weight: 600; color: #fff;
  font-size: clamp(2.1rem, 5.5vw, 3.4rem); line-height: 1.08; letter-spacing: -0.01em; margin: 0 0 1.1rem;
}
.blog-meta { color: var(--text-mut); font-size: 0.9rem; display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.blog-meta .dot { opacity: 0.4; }

/* ---------- Image héro ---------- */
.blog-hero { margin: -1.75rem auto 0; position: relative; z-index: 2; }
.blog-hero img {
  width: 100%; border-radius: 0.85rem; border: 1px solid var(--line);
  box-shadow: 0 25px 60px -25px rgba(0, 0, 0, 0.8); display: block;
}

/* ---------- Corps de l'article (prose) ---------- */
.blog-prose { padding: 2.75rem 0 1rem; color: var(--text-soft); }
.blog-prose > *:first-child { margin-top: 0; }
.blog-prose h2 {
  font-family: var(--font-display); font-weight: 600; color: #fff;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem); line-height: 1.2; letter-spacing: -0.01em;
  margin: 2.6rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--line);
}
.blog-prose h3 {
  font-family: var(--font-display); font-weight: 600; color: #fff;
  font-size: 1.45rem; line-height: 1.25; margin: 2rem 0 0.75rem;
}
.blog-prose h4 { font-weight: 600; color: var(--text); font-size: 1.1rem; margin: 1.5rem 0 0.6rem; }
.blog-prose p { margin: 1.1rem 0; }
.blog-prose ul, .blog-prose ol { margin: 1.1rem 0; padding-left: 1.5rem; }
.blog-prose li { margin: 0.5rem 0; }
.blog-prose ul li { list-style: disc; }
.blog-prose ol li { list-style: decimal; }
.blog-prose li::marker { color: var(--brand); }
.blog-prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(197, 165, 114, 0.45); }
.blog-prose a:hover { color: var(--brand-soft); text-decoration-color: var(--brand-soft); }
.blog-prose strong { color: var(--text); font-weight: 600; }
.blog-prose blockquote {
  margin: 1.75rem 0; padding: 0.5rem 0 0.5rem 1.25rem; border-left: 3px solid var(--brand);
  color: var(--text); font-style: italic; font-size: 1.1rem;
}
.blog-prose code { background: rgba(197, 165, 114, 0.12); color: var(--brand-soft); padding: 0.15rem 0.4rem; border-radius: 0.3rem; font-size: 0.9em; }
.blog-prose pre { background: var(--surface); border: 1px solid var(--line); border-radius: 0.6rem; padding: 1rem 1.2rem; overflow-x: auto; margin: 1.5rem 0; }
.blog-prose pre code { background: transparent; color: var(--text-soft); padding: 0; }
.blog-prose img { border-radius: 0.6rem; border: 1px solid var(--line); margin: 1.75rem 0; }
.blog-prose hr { border: none; border-top: 1px solid var(--line); margin: 2.5rem 0; }
.blog-prose table { width: 100%; border-collapse: collapse; margin: 1.75rem 0; font-size: 0.95rem; }
.blog-prose th, .blog-prose td { border: 1px solid var(--line); padding: 0.7rem 0.9rem; text-align: left; }
.blog-prose th { background: rgba(197, 165, 114, 0.08); color: #fff; font-weight: 600; }

/* ---------- CTA devis en fin d'article ---------- */
.blog-cta-card {
  margin: 3rem 0; padding: 2.25rem; border-radius: 1rem; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid rgba(197, 165, 114, 0.22);
}
.blog-cta-card .label { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--brand); margin: 0 0 0.6rem; }
.blog-cta-card h2 { font-family: var(--font-display); font-weight: 600; color: #fff; font-size: 1.9rem; line-height: 1.15; margin: 0 0 0.6rem; border: 0; padding: 0; }
.blog-cta-card p { color: var(--text-mut); margin: 0 0 1.5rem; max-width: 32rem; }
.blog-btn {
  display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.85rem 1.6rem; border-radius: 999px;
  font-weight: 600; font-size: 0.9rem; color: var(--bg);
  background: linear-gradient(135deg, var(--brand-soft), var(--brand)); transition: filter 0.2s, transform 0.2s;
}
.blog-btn:hover { color: var(--bg); filter: brightness(1.07); transform: translateY(-1px); }
.blog-btn svg { width: 1rem; height: 1rem; }

.blog-back { margin: 1.5rem 0 3.5rem; }
.blog-back a { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--brand); font-weight: 500; }
.blog-back a:hover { color: var(--brand-soft); }

/* ---------- Index du blog ---------- */
.blog-index-head { max-width: 72rem; margin: 0 auto; padding: 3.5rem 1.5rem 1rem; }
.blog-section-label { font-size: 0.75rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--brand-deep); font-weight: 600; margin: 0 0 1rem; }
.blog-index-title { font-family: var(--font-display); font-weight: 600; color: #fff; font-size: clamp(2.4rem, 6vw, 3.8rem); line-height: 1.05; letter-spacing: -0.01em; margin: 0 0 1rem; }
.blog-index-sub { color: var(--text-soft); font-size: 1.1rem; max-width: 38rem; margin: 0; }
.blog-index-grid {
  max-width: 72rem; margin: 0 auto; padding: 2rem 1.5rem 4rem;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr)); gap: 1.5rem;
}
.blog-card {
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line);
  border-radius: 0.9rem; overflow: hidden; transition: border-color 0.25s, transform 0.25s; color: inherit;
}
.blog-card:hover { border-color: rgba(197, 165, 114, 0.4); transform: translateY(-3px); }
.blog-card-img { aspect-ratio: 16 / 9; background: var(--surface-2) center/cover no-repeat; display: block; }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card-body { padding: 1.35rem 1.4rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.blog-card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }
.blog-card-tag { font-size: 0.66rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--brand-soft); }
.blog-card-title { font-family: var(--font-display); font-weight: 600; color: #fff; font-size: 1.5rem; line-height: 1.18; margin: 0 0 0.55rem; }
.blog-card-desc { color: var(--text-mut); font-size: 0.92rem; margin: 0 0 1.1rem; flex: 1; }
.blog-card-meta { color: var(--text-mut); font-size: 0.8rem; }
.blog-empty {
  max-width: 72rem; margin: 0 auto; padding: 1rem 1.5rem 5rem; text-align: center; color: var(--text-mut);
}
.blog-empty .blog-empty-card {
  border: 1px dashed var(--line-strong); border-radius: 1rem; padding: 3.5rem 1.5rem; background: var(--surface);
}

/* ---------- Pied de page ---------- */
.blog-footer { background: #0c0f15; border-top: 1px solid var(--line); margin-top: auto; padding: 3rem 1.5rem 2.5rem; }
.blog-footer-inner { max-width: 72rem; margin: 0 auto; display: flex; flex-direction: column; gap: 1.5rem; align-items: center; text-align: center; }
.blog-footer .blog-logo img { height: 2.75rem; }
.blog-footer-links { display: flex; flex-wrap: wrap; gap: 1.25rem; justify-content: center; }
.blog-footer-links a { color: var(--text-mut); font-size: 0.88rem; }
.blog-footer-links a:hover { color: #fff; }
.blog-copy { color: var(--text-mut); font-size: 0.82rem; margin: 0; }

@media (max-width: 640px) {
  body.blog-body { font-size: 16px; }
  .blog-article-head { padding: 2.5rem 0 2rem; }
  .blog-cta-card { padding: 1.75rem; }
}