/* ==========================================================
   Blog AuditFacile — magazine SaaS data-driven, propre, aéré
   Palette : black/dark + cyan #0EA5E9 + deep blue #1E40AF
   ========================================================== */
:root{
  --black:#050814;
  --dark:#0a0e1f;
  --surface:#111733;
  --surface-2:#1a2046;
  --border:rgba(255,255,255,0.08);
  --border-hi:rgba(125,211,252,0.30);
  --white:#F8FAFC;
  --muted:rgba(248,250,252,0.62);
  --muted-2:rgba(248,250,252,0.78);
  --primary:#1E40AF;
  --cyan:#0EA5E9;
  --cyan-light:#38BDF8;
  --cyan-dim:rgba(14,165,233,0.12);
  --success:#10B981;
  --danger:#EF4444;
  --radius:16px;
  --font-display:'Syne',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--black);color:var(--white);
  font-family:var(--font-body);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;
  background-image:
    linear-gradient(rgba(14,165,233,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(14,165,233,.04) 1px,transparent 1px);
  background-size:50px 50px;pointer-events:none;z-index:0;
  animation:gridMove 24s linear infinite;
}
@keyframes gridMove{from{transform:translate(0,0)}to{transform:translate(50px,50px)}}
body::after{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse at 15% 10%,rgba(14,165,233,.10) 0%,transparent 45%),
    radial-gradient(ellipse at 85% 80%,rgba(56,189,248,.06) 0%,transparent 45%);
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.15;letter-spacing:-.01em}
.mono{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cyan)}
a{color:inherit;text-decoration:none}

/* ===== NAV (matches main site) ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:1.3rem 0;
  background:rgba(5,8,20,.7);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:all .3s ease;
}
.nav.scrolled{background:rgba(5,8,20,.92)}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  position:relative;z-index:2;
}
.nav-logo{
  font-family:var(--font-display);font-size:1.3rem;font-weight:800;
  letter-spacing:-.5px;color:var(--white);
}
.nav-logo span{color:var(--cyan)}
.nav-links{display:flex;gap:1.6rem;align-items:center;font-size:.92rem;font-weight:500}
.nav-links a{color:var(--muted-2);transition:color .25s ease}
.nav-links a:hover{color:var(--cyan)}
.nav-links a.active{color:var(--cyan)}
.nav-cta{
  padding:.6rem 1.2rem;background:var(--cyan);color:#fff;
  border-radius:10px;font-weight:600;font-size:.9rem;
  transition:all .2s;white-space:nowrap;
}
.nav-cta:hover{background:var(--cyan-light);transform:translateY(-2px);box-shadow:0 10px 30px rgba(14,165,233,.3)}

/* ===== Blog index hero ===== */
.blog-hero{
  position:relative;z-index:2;
  padding:9rem 1.5rem 3rem;text-align:center;
}
.blog-hero .eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  background:var(--cyan-dim);color:var(--cyan);
  padding:.5rem 1rem;border-radius:30px;
  font-size:.78rem;font-weight:600;letter-spacing:.3px;text-transform:uppercase;
  border:1px solid var(--border-hi);margin-bottom:1.6rem;
}
.blog-hero .eyebrow .pulse{width:6px;height:6px;background:var(--cyan);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);box-shadow:0 0 0 0 rgba(14,165,233,.6)}50%{opacity:.5;transform:scale(1.5);box-shadow:0 0 0 6px rgba(14,165,233,0)}}
.blog-hero h1{
  font-size:clamp(2.2rem,5vw,3.8rem);
  max-width:880px;margin:0 auto 1.2rem;
}
.blog-hero h1 .hl{color:var(--cyan)}
.blog-hero p{
  color:var(--muted);font-size:1.08rem;
  max-width:640px;margin:0 auto 2rem;line-height:1.55;
}

.filters{
  position:relative;z-index:2;
  max-width:1200px;margin:0 auto 2.4rem;padding:0 1.5rem;
  display:flex;gap:.6rem;flex-wrap:wrap;justify-content:center;
}
.filter-btn{
  padding:.55rem 1.2rem;border-radius:30px;
  font-size:.84rem;font-weight:600;
  border:1px solid var(--border);background:transparent;color:var(--muted-2);
  cursor:pointer;font-family:var(--font-body);
  transition:all .2s ease;
}
.filter-btn:hover{border-color:var(--border-hi);color:var(--cyan)}
.filter-btn.active{background:var(--cyan);color:#fff;border-color:var(--cyan)}

/* ===== Cards grid ===== */
.articles-grid{
  position:relative;z-index:2;
  max-width:1200px;margin:0 auto;padding:0 1.5rem 5rem;
  display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;
}
.article-card{
  background:var(--dark);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;
  transition:all .25s ease;
}
.article-card:hover{
  border-color:var(--cyan);transform:translateY(-4px);
  box-shadow:0 18px 50px rgba(14,165,233,.18);
}
.card-img{
  height:170px;
  background:linear-gradient(135deg,var(--primary),var(--surface-2));
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
}
.card-img::before{
  content:'';position:absolute;
  top:-40px;right:-40px;width:200px;height:200px;
  background:radial-gradient(circle,rgba(14,165,233,.30),transparent 60%);filter:blur(40px);
}
.card-img-icon{
  position:relative;z-index:1;
  font-family:var(--font-display);font-weight:800;
  font-size:2.4rem;color:var(--cyan-light);
  text-shadow:0 0 18px rgba(14,165,233,.45);
}
.card-img-tag{
  position:absolute;top:.9rem;left:.9rem;z-index:1;
  font-family:var(--font-mono);font-size:.68rem;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);background:rgba(5,8,20,.72);
  padding:.32rem .7rem;border-radius:30px;
  border:1px solid var(--border-hi);
}
.card-body{padding:1.4rem 1.4rem 1.6rem;display:flex;flex-direction:column;gap:.7rem;flex:1}
.card-meta{
  display:flex;gap:.6rem;align-items:center;
  font-family:var(--font-mono);font-size:.72rem;
  color:var(--cyan);letter-spacing:.06em;text-transform:uppercase;
}
.dot-sep{color:var(--muted);opacity:.5}
.article-card h2{
  font-family:var(--font-display);font-size:1.18rem;line-height:1.3;
  font-weight:700;color:var(--white);
}
.article-card p{font-size:.92rem;color:var(--muted);line-height:1.55;flex:1}
.card-cta{
  margin-top:.4rem;font-weight:700;color:var(--cyan);
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.88rem;transition:gap .2s ease;
}
.article-card:hover .card-cta{gap:.8rem}

/* ===== Article page ===== */
.article{
  position:relative;z-index:2;
  padding:8rem 1.5rem 3rem;
  max-width:780px;margin:0 auto;
}
.back-link{
  display:inline-block;margin-bottom:1.4rem;
  font-size:.88rem;color:var(--muted-2);font-weight:500;
  transition:color .2s;
}
.back-link:hover{color:var(--cyan)}
.article-cat{
  display:inline-block;
  background:var(--cyan-dim);color:var(--cyan);
  font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;
  padding:.4rem .9rem;border-radius:50px;
  border:1px solid var(--border-hi);
  font-weight:600;margin-bottom:1.4rem;
}
.article h1{
  font-size:clamp(2rem,4.4vw,3.2rem);
  margin-bottom:1.2rem;line-height:1.12;
}
.article-lead{
  font-size:1.14rem;color:var(--muted-2);
  line-height:1.55;font-weight:400;
  border-left:3px solid var(--cyan);
  padding-left:1.3rem;
  margin:1.4rem 0 1.8rem;
}
.article-meta{
  display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;
  padding:1.1rem 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  font-size:.84rem;color:var(--muted);
}
.article-hero{
  margin:2.2rem 0 2.6rem;
  border-radius:18px;overflow:hidden;
  background:linear-gradient(135deg,var(--primary),var(--surface-2));
  position:relative;
  box-shadow:0 20px 60px rgba(14,165,233,.12);
}
.article-hero img{width:100%;display:block}
.article-body p{font-size:1.04rem;line-height:1.72;color:var(--muted-2);margin-bottom:1.3rem}
.article-body p.intro{font-size:1.12rem;color:var(--white);line-height:1.65;margin-bottom:1.6rem}
.article-body strong{color:var(--white);font-weight:700}
.article-body em{color:var(--cyan);font-style:italic}
.article-body a{color:var(--cyan);font-weight:500;border-bottom:1px solid rgba(14,165,233,.3);transition:all .2s}
.article-body a:hover{border-bottom-color:var(--cyan)}
.article-body h2{
  font-size:clamp(1.55rem,3vw,2rem);margin:2.6rem 0 1rem;padding-top:.9rem;
  position:relative;color:var(--white);
}
.article-body h2::before{
  content:'';position:absolute;top:0;left:0;
  width:50px;height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-light));border-radius:2px;
}
.article-body h3{font-size:1.28rem;margin:1.8rem 0 .8rem;color:var(--white)}
.article-body ul,.article-body ol{margin:1.2rem 0 1.4rem 1.4rem;display:flex;flex-direction:column;gap:.6rem}
.article-body li{font-size:1.02rem;color:var(--muted-2);line-height:1.6}
.article-body li::marker{color:var(--cyan);font-weight:700}
.article-body blockquote{
  margin:1.8rem 0;padding:1.2rem 1.5rem;
  border-left:4px solid var(--cyan);
  background:var(--cyan-dim);
  border-radius:0 12px 12px 0;
  font-size:1.05rem;font-style:italic;
  color:var(--white);
}
.cta-inline{
  margin:2.2rem 0;padding:1.4rem 1.6rem;
  background:linear-gradient(135deg,var(--cyan-dim),rgba(30,64,175,.18));
  border:1px solid var(--border-hi);
  border-left:4px solid var(--cyan);
  border-radius:12px;font-size:1rem;color:var(--white);
}
.cta-inline strong{color:var(--cyan-light)}
.cta-inline a{color:var(--cyan-light);font-weight:700;border-bottom:1px solid var(--cyan-light)}

/* CTA box bottom of article */
.article-cta-box{
  margin-top:3rem;padding:2.2rem 2rem;
  background:linear-gradient(135deg,var(--surface),var(--surface-2));
  border:1px solid var(--border-hi);border-radius:18px;
  text-align:center;
  box-shadow:0 30px 80px rgba(14,165,233,.16);
}
.article-cta-box p{font-family:var(--font-display);font-size:1.3rem;color:var(--white);margin-bottom:1rem;font-weight:700}
.btn-primary{
  display:inline-flex;align-items:center;gap:.5rem;
  background:var(--cyan);color:#fff;
  padding:.95rem 1.8rem;border-radius:10px;
  font-weight:700;font-size:.98rem;
  transition:all .2s ease;border:none;cursor:pointer;
  box-shadow:0 8px 22px rgba(14,165,233,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(14,165,233,.5);background:var(--cyan-light)}

.article-internal-links{
  margin-top:2.6rem;padding-top:1.8rem;border-top:1px solid var(--border);
}
.article-internal-links ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.6rem}
.article-internal-links a{color:var(--white);font-weight:500;border-bottom:1px solid var(--border)}
.article-internal-links a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ===== Footer ===== */
.footer{
  position:relative;z-index:2;
  padding:3rem 1.5rem 2rem;
  border-top:1px solid var(--border);
  text-align:center;color:var(--muted);font-size:.85rem;
}
.footer a{color:var(--cyan)}
.footer a:hover{color:var(--cyan-light)}

/* ===== Responsive ===== */
@media(max-width:980px){
  .nav-links{display:none}
  .articles-grid{grid-template-columns:1fr 1fr;gap:1.2rem}
  .blog-hero{padding:7rem 1.2rem 2.4rem}
  .article{padding:7rem 1.2rem 2.4rem}
}
@media(max-width:640px){
  .articles-grid{grid-template-columns:1fr}
  .article-body p,.article-body p.intro{font-size:1rem}
  .article-cta-box{padding:1.6rem 1.2rem}
}