/* ═══════════════════════════════════════════
   NEXORA BLOG — Design System (aligné sur index.html)
═══════════════════════════════════════════ */
:root{
  --bg-1:#FAFBFD;--bg-2:#FFFFFF;--bg-3:#F1F4F9;--bg-4:#E6EBF2;
  --bg-dark:#0F172A;--bg-dark-2:#1E293B;
  --text-1:#0A0D14;--text-2:#475569;--text-3:#94A3B8;--text-4:#CBD5E1;
  --brand:#0F172A;
  --cyan:#0EA5E9;--cyan-hover:#0284C7;--cyan-soft:rgba(14,165,233,.08);--cyan-glow:rgba(14,165,233,.20);
  --gold:#F59E0B;--gold-hover:#D97706;--gold-soft:rgba(245,158,11,.08);--gold-glow:rgba(245,158,11,.22);
  --green:#10B981;--green-soft:rgba(16,185,129,.10);--red:#EF4444;
  --border:rgba(15,17,23,.06);--border-strong:rgba(15,17,23,.12);--border-cyan:rgba(14,165,233,.22);
  --font-display:'Clash Display',system-ui,sans-serif;
  --font-body:'Plus Jakarta Sans',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --section-py:clamp(56px,8vw,110px);--container:min(1180px,92vw);--prose:min(720px,92vw);
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-xl:28px;--r-full:999px;
  --sh-sm:0 1px 2px rgba(15,17,23,.04),0 1px 3px rgba(15,17,23,.06);
  --sh-md:0 4px 12px rgba(15,17,23,.05),0 10px 30px -10px rgba(15,17,23,.08);
  --sh-lg:0 6px 20px rgba(15,17,23,.06),0 24px 60px -20px rgba(15,17,23,.12);
  --sh-cyan:0 8px 30px -8px var(--cyan-glow);
  --ease:cubic-bezier(.19,1,.22,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
*::selection{background:var(--cyan);color:#fff}
html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--text-1);background:var(--bg-1);overflow-x:hidden;-webkit-user-select:none;-moz-user-select:none;user-select:none}
input,textarea,select,[contenteditable]{-webkit-user-select:text;-moz-user-select:text;user-select:text}
img,svg{-webkit-user-drag:none;user-drag:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
img,svg{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.1;letter-spacing:-.025em;color:var(--text-1)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:var(--container);margin:0 auto;position:relative}
.grad{background:linear-gradient(95deg,var(--cyan) 15%,var(--gold) 85%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ── Eyebrow ── */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan-hover);padding:7px 14px;background:var(--cyan-soft);border:1px solid var(--border-cyan);border-radius:var(--r-full)}
.eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan-glow)}
.eyebrow.gold{color:var(--gold-hover);background:var(--gold-soft);border-color:rgba(245,158,11,.3)}
.eyebrow.gold::before{background:var(--gold);box-shadow:0 0 10px var(--gold-glow)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;font-size:15px;font-weight:600;border-radius:var(--r-full);transition:background .2s,color .2s,box-shadow .25s,transform .2s;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px -4px rgba(15,23,42,.35)}
.btn-primary:hover{background:var(--cyan-hover);box-shadow:var(--sh-cyan)}
.btn-gold{background:var(--gold);color:#1A1404}
.btn-gold:hover{background:var(--gold-hover);color:#fff}
.btn-ghost{background:var(--bg-2);color:var(--text-1);border-color:var(--border-strong);box-shadow:var(--sh-sm)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan-hover)}
.btn .arr{transition:transform .25s}
.btn:hover .arr{transform:translateX(3px)}

/* ── Nav ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:14px 0;transition:background .3s,padding .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(250,251,253,.88);backdrop-filter:blur(20px) saturate(140%);border-bottom-color:var(--border);padding:10px 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav-logo{display:flex;align-items:center;font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:-.02em}
.nav-logo small{display:block;font-family:var(--font-mono);font-size:9.5px;font-weight:500;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{padding:8px 14px;font-size:14px;font-weight:500;color:var(--text-2);border-radius:var(--r-full);transition:color .2s,background .2s}
.nav-link:hover,.nav-link.active{color:var(--text-1);background:var(--bg-3)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:var(--brand);color:#fff;font-weight:600;font-size:13.5px;border-radius:var(--r-full);transition:background .2s}
.nav-cta:hover{background:var(--cyan-hover)}
.nav-burger{display:none;width:40px;height:40px;border-radius:50%;background:var(--bg-2);border:1px solid var(--border-strong);position:relative}
.nav-burger span{position:absolute;left:11px;width:18px;height:1.6px;background:var(--text-1)}
.nav-burger span:nth-child(1){top:15px}.nav-burger span:nth-child(2){top:23px}
@media(max-width:860px){.nav-links{display:none}.nav-burger{display:block}}

/* ── Blog index hero ── */
.blog-hero{padding:140px 0 40px;position:relative;overflow:hidden}
.blog-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 15% 0%,rgba(14,165,233,.12),transparent 60%),radial-gradient(ellipse 50% 50% at 95% 30%,rgba(245,158,11,.10),transparent 60%);pointer-events:none}
.blog-hero-inner{position:relative;z-index:1}
.blog-shapes{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.blog-shapes span{position:absolute;border-radius:32px;border:1px solid rgba(14,165,233,.14);background:linear-gradient(90deg,var(--shape),transparent);opacity:.6}
.blog-shapes span:nth-child(1){width:300px;height:72px;right:-3%;top:34%;transform:rotate(-12deg);--shape:rgba(14,165,233,.12);animation:blogFloat 16s ease-in-out infinite}
.blog-shapes span:nth-child(2){width:200px;height:52px;left:5%;bottom:-6%;transform:rotate(10deg);--shape:rgba(245,158,11,.10);animation:blogFloat 20s ease-in-out infinite}
@keyframes blogFloat{0%,100%{translate:0 0}50%{translate:0 -18px}}
@media(prefers-reduced-motion:reduce){.blog-shapes span{animation:none}}
@media(max-width:768px){.blog-shapes{display:none}}
.blog-hero-inner{position:relative;max-width:760px}
.blog-hero h1{font-size:clamp(36px,6vw,68px);font-weight:800;letter-spacing:-.04em;line-height:1.02;margin:18px 0 18px}
.blog-hero p{font-size:clamp(16px,1.6vw,19px);color:var(--text-2);max-width:60ch;line-height:1.65}

/* ── Article grid (index) ── */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-bottom:var(--section-py)}
.post-grid.feature{grid-template-columns:1.6fr 1fr 1fr;align-items:stretch}
.post-card{display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s;position:relative}
.post-card:hover{transform:translateY(-7px);box-shadow:var(--sh-lg),var(--sh-cyan);border-color:var(--border-cyan)}
.post-cover{aspect-ratio:16/9;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:18px}
.post-card.big .post-cover{aspect-ratio:16/11}
.post-cover-num{position:absolute;top:14px;right:18px;font-family:var(--font-display);font-weight:800;font-size:3.4rem;color:rgba(255,255,255,.18);line-height:1}
.post-cat{position:relative;z-index:2;font-family:var(--font-mono);font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:5px 12px;border-radius:var(--r-full);backdrop-filter:blur(8px)}
.cover-a{background:linear-gradient(135deg,#0c4a6e,#0EA5E9 90%)}
.cover-b{background:linear-gradient(135deg,#0f172a,#1e3a5f 70%,#0EA5E9)}
.cover-c{background:linear-gradient(135deg,#7c2d12,#F59E0B 95%)}
.post-cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .55s var(--ease)}
.post-card:hover .post-cover-img{transform:scale(1.06)}
.post-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,11,20,.10),rgba(8,11,20,.60));z-index:1}
.post-cover-num{z-index:2}
.post-cat{z-index:2}
/* image bannière en tête d'article */
.art-cover{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh-md);aspect-ratio:16/7;margin:0 auto 4px}
.art-cover img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:640px){.art-cover{aspect-ratio:16/10}}
.post-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{font-family:var(--font-display);font-size:clamp(18px,1.6vw,23px);font-weight:700;line-height:1.18;letter-spacing:-.02em}
.post-card.big .post-title{font-size:clamp(22px,2vw,30px)}
.post-excerpt{font-size:.9rem;color:var(--text-2);line-height:1.6;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;color:var(--text-3);text-transform:uppercase;margin-top:4px}
.post-readmore{display:inline-flex;align-items:center;gap:7px;font-size:.86rem;font-weight:700;color:var(--cyan-hover);margin-top:6px}
.post-readmore .arr{transition:transform .25s}
.post-card:hover .post-readmore .arr{transform:translateX(4px)}

/* ── Article page ── */
.art-head{padding:130px 0 36px;position:relative;overflow:hidden}
.art-head::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 55% 60% at 12% 0%,rgba(14,165,233,.12),transparent 62%),radial-gradient(ellipse 45% 50% at 95% 20%,rgba(245,158,11,.10),transparent 60%);pointer-events:none}
.breadcrumb{position:relative;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--text-3);margin-bottom:18px;display:flex;gap:8px;align-items:center}
.breadcrumb a:hover{color:var(--cyan-hover)}
.art-head h1{position:relative;font-size:clamp(30px,4.6vw,54px);font-weight:800;letter-spacing:-.035em;line-height:1.05;max-width:18ch;margin:16px 0 18px}
.art-meta{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.05em;color:var(--text-3);text-transform:uppercase}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-4)}
.art-lead{font-size:clamp(17px,1.8vw,21px);line-height:1.6;color:var(--text-1);font-weight:500;border-left:3px solid var(--cyan);padding-left:20px;margin:8px 0 0}

/* prose */
.prose{width:var(--prose);margin:0 auto;padding:44px 0 var(--section-py)}
.prose>*{margin-bottom:24px}
.prose h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.025em;margin-top:52px;margin-bottom:18px;scroll-margin-top:100px}
.prose h2 .grad{padding-right:.05em}
.prose h3{font-size:clamp(19px,2vw,24px);font-weight:600;margin-top:36px;margin-bottom:12px}
.prose p{font-size:17px;line-height:1.78;color:var(--text-2)}
.prose strong{color:var(--text-1);font-weight:700}
.prose a:not(.btn){color:var(--cyan-hover);font-weight:600;border-bottom:1px solid var(--border-cyan)}
.prose ul{display:flex;flex-direction:column;gap:12px;padding-left:4px}
.prose ul li{position:relative;padding-left:30px;font-size:17px;line-height:1.7;color:var(--text-2)}
.prose ul li::before{content:'';position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:4px;transform:rotate(45deg);background:linear-gradient(135deg,var(--cyan),var(--gold))}

/* stat callouts row */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:34px 0!important}
.stat-row.two{grid-template-columns:repeat(2,1fr)}
.stat-card{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px 22px;box-shadow:var(--sh-sm);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--cyan),var(--gold))}
.stat-num{font-family:var(--font-display);font-size:clamp(34px,4vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1;background:linear-gradient(120deg,var(--cyan),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:.92rem;color:var(--text-2);line-height:1.5;margin-top:10px}
.stat-src{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.05em;color:var(--text-3);margin-top:12px;text-transform:uppercase}

/* bar chart */
.chart{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--sh-sm);margin:34px 0!important}
.chart-title{font-family:var(--font-display);font-weight:700;font-size:1.05rem;margin-bottom:6px}
.chart-sub{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.05em;color:var(--text-3);text-transform:uppercase;margin-bottom:22px}
.chart-row{display:grid;grid-template-columns:88px 1fr auto;align-items:center;gap:14px;margin-bottom:14px}
.chart-label{font-size:.82rem;font-weight:600;color:var(--text-2);text-align:right}
.chart-track{height:26px;background:var(--bg-3);border-radius:var(--r-full);overflow:hidden}
.chart-fill{height:100%;width:0;border-radius:var(--r-full);background:linear-gradient(90deg,var(--cyan),var(--gold));transition:width 1.1s var(--ease)}
.chart.in .chart-fill{width:var(--w)}
.chart-val{font-family:var(--font-display);font-weight:700;font-size:.95rem;color:var(--text-1);min-width:54px}

/* comparison table */
.cmp{width:100%;border-collapse:collapse;margin:30px 0!important;font-size:.92rem;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}
.cmp th,.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border)}
.cmp thead th{background:var(--bg-dark);color:#fff;font-family:var(--font-display);font-weight:600;font-size:.9rem}
.cmp tbody tr:nth-child(even){background:var(--bg-3)}
.cmp td:first-child{font-weight:600;color:var(--text-1)}

/* highlight / loss-aversion box */
.insight{background:linear-gradient(135deg,var(--bg-dark),var(--bg-dark-2));border-radius:var(--r-xl);padding:30px 32px;margin:38px 0!important;position:relative;overflow:hidden}
.insight::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 80% at 100% 0%,rgba(14,165,233,.16),transparent 60%),radial-gradient(ellipse 50% 70% at 0% 100%,rgba(245,158,11,.12),transparent 60%);pointer-events:none}
.insight-tag{position:relative;font-family:var(--font-mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);font-weight:600;margin-bottom:12px;display:block}
.insight p{position:relative;color:#e2e8f0!important;font-size:1.12rem!important;line-height:1.7;font-weight:500}
.insight strong{color:#fff!important}

/* pull quote */
.pull{font-family:var(--font-display);font-weight:600;font-size:clamp(20px,2.4vw,28px);line-height:1.35;letter-spacing:-.02em;color:var(--text-1);text-align:center;padding:14px 0;margin:40px 0!important}
.pull span{background:linear-gradient(120deg,var(--cyan),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}

/* takeaway list */
.takeaway{background:var(--cyan-soft);border:1px solid var(--border-cyan);border-radius:var(--r-xl);padding:26px 28px;margin:34px 0!important}
.takeaway h4{font-size:1.05rem;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.takeaway ul li::before{background:var(--cyan)}

/* IA bridge mini (article) */
.ia-mini{background:linear-gradient(135deg,#0f172a,#1e293b);border-radius:var(--r-xl);padding:clamp(28px,4vw,42px);margin:44px 0!important;text-align:center;position:relative;overflow:hidden}
.ia-mini::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 70% 80% at 50% 0%,rgba(14,165,233,.16),transparent 65%);pointer-events:none}
.ia-mini h3{position:relative;color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:12px}
.ia-mini p{position:relative;color:var(--text-4)!important;max-width:52ch;margin:0 auto 22px;font-size:1rem!important;line-height:1.65}

/* CTA block */
.cta-block{background:var(--bg-2);border:1px solid var(--border-cyan);border-radius:var(--r-xl);padding:clamp(28px,4vw,44px);text-align:center;box-shadow:var(--sh-lg);margin:44px 0 0!important;position:relative;overflow:hidden}
.cta-block::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 80% at 50% 0%,var(--cyan-soft),transparent 60%);pointer-events:none}
.cta-block h3{position:relative;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-block p{position:relative;color:var(--text-2);max-width:48ch;margin:0 auto 24px;font-size:1.02rem}

/* related */
.related{padding:var(--section-py) 0;background:var(--bg-2);border-top:1px solid var(--border)}
.related h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:28px}

/* ── Footer (aligné index) ── */
footer{background:var(--bg-dark);padding:clamp(48px,6vw,72px) 0 30px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-logo{font-family:var(--font-display);font-weight:800;font-size:1.4rem;color:#fff;display:block;margin-bottom:14px}
.footer-desc{font-size:.84rem;color:var(--text-3);line-height:1.75;max-width:280px}
.footer-col h5{font-family:var(--font-display);font-weight:700;color:var(--text-4);font-size:.84rem;margin-bottom:16px}
.footer-col a{display:block;font-size:.82rem;color:#64748b;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:#e2e8f0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.77rem;color:#475569}

/* reveal */
.rev{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rev.vis{opacity:1;transform:none}
.rev.d1{transition-delay:.07s}.rev.d2{transition-delay:.14s}.rev.d3{transition-delay:.21s}

/* responsive */
@media(max-width:900px){
  .post-grid,.post-grid.feature{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  .post-grid,.post-grid.feature{grid-template-columns:1fr}
  .stat-row,.stat-row.two{grid-template-columns:1fr}
  .chart-row{grid-template-columns:70px 1fr auto;gap:10px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(prefers-reduced-motion:reduce){.rev{opacity:1;transform:none}.chart-fill{transition:none}}