*,::before,::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'DM Sans',sans-serif;background:#0a0e1a;color:#e8eaf0;line-height:1.7;overflow-x:hidden}
:root{--cyan:#00bcd4;--green:#7ecb20;--grad:linear-gradient(135deg,#00bcd4,#7ecb20);--bg-card:rgba(255,255,255,0.03);--border-card:rgba(255,255,255,0.07);--text-2:#c8d0dc;--text-3:#94a3b8;--text-4:#64748b}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* NAV */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:rgba(10,14,26,0.92);backdrop-filter:blur(20px);border-bottom:1px solid rgba(0,188,212,0.08)}
.nav-brand{display:flex;align-items:center;gap:10px;font-family:'Outfit',sans-serif;font-weight:800;font-size:1.15rem;letter-spacing:1px}
.nav-brand img{width:34px;height:34px;border-radius:50%}
.nav-back{display:flex;align-items:center;gap:6px;color:var(--cyan);font-size:0.85rem;font-weight:600;transition:opacity 0.2s}
.nav-back:hover{opacity:0.75}
.nav-back svg{width:15px;height:15px}

/* HERO ARTICLE */
.article-hero{padding:120px 24px 56px;text-align:center;position:relative}
.article-hero::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:700px;height:500px;background:radial-gradient(circle,rgba(0,188,212,0.06) 0%,transparent 70%);pointer-events:none;z-index:0}
.article-meta{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.article-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(0,188,212,0.08);border:1px solid rgba(0,188,212,0.15);border-radius:30px;padding:5px 14px;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--cyan)}
.article-date{font-size:0.78rem;color:var(--text-4)}
.article-hero h1{position:relative;z-index:1;font-family:'Outfit',sans-serif;font-size:clamp(1.8rem,4.5vw,3rem);font-weight:800;line-height:1.15;max-width:760px;margin:0 auto 20px;letter-spacing:-0.02em}
.grad-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.article-intro{position:relative;z-index:1;font-size:1.05rem;color:var(--text-2);max-width:600px;margin:0 auto;line-height:1.75}

/* LAYOUT */
.article-layout{max-width:780px;margin:0 auto;padding:0 24px 80px}

/* SOMMAIRE */
.toc{background:var(--bg-card);border:1px solid var(--border-card);border-radius:16px;padding:24px 28px;margin-bottom:48px}
.toc-title{font-family:'Outfit',sans-serif;font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--cyan);margin-bottom:16px}
.toc ol{padding-left:20px;display:flex;flex-direction:column;gap:8px}
.toc li{font-size:0.88rem;color:var(--text-2)}
.toc a{color:var(--text-2);transition:color 0.2s}
.toc a:hover{color:var(--cyan)}

/* ARTICLE CONTENT */
.article-body h2{font-family:'Outfit',sans-serif;font-size:1.5rem;font-weight:800;color:#e8eaf0;margin:48px 0 16px;padding-top:8px;line-height:1.2}
.article-body h3{font-family:'Outfit',sans-serif;font-size:1.1rem;font-weight:700;color:#e8eaf0;margin:28px 0 12px}
.article-body p{font-size:0.95rem;color:var(--text-2);margin-bottom:16px;line-height:1.8}
.article-body strong{color:#e8eaf0;font-weight:600}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:16px;display:flex;flex-direction:column;gap:8px}
.article-body li{font-size:0.95rem;color:var(--text-2);line-height:1.7}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{opacity:0.8}
.article-body .btn{text-decoration:none}
.article-body .btn-primary{color:#fff}
.article-body .btn-ghost{color:var(--cyan)}

/* CALLOUT */
.callout{background:rgba(0,188,212,0.06);border:1px solid rgba(0,188,212,0.15);border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;padding:18px 20px;margin:24px 0}
.callout p{margin:0;font-size:0.9rem;color:var(--text-2)}
.callout strong{color:var(--cyan)}

/* TABLE */
.table-wrap{overflow-x:auto;margin:20px 0;border-radius:12px;border:1px solid var(--border-card)}
table{width:100%;border-collapse:collapse;font-size:0.88rem}
th{padding:12px 16px;text-align:left;font-family:'Outfit',sans-serif;font-weight:700;font-size:0.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--cyan);background:rgba(0,188,212,0.05);border-bottom:1px solid var(--border-card)}
td{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,0.03);color:var(--text-2)}
tr:last-child td{border-bottom:none}
.td-highlight{color:var(--green);font-weight:700}

/* CTA BOX */
.cta-box{background:linear-gradient(135deg,rgba(0,188,212,0.08),rgba(126,203,32,0.05));border:1px solid rgba(0,188,212,0.2);border-radius:20px;padding:36px 32px;text-align:center;margin:48px 0}
.cta-box h3{font-family:'Outfit',sans-serif;font-size:1.4rem;font-weight:800;margin-bottom:12px}
.cta-box p{color:var(--text-3);font-size:0.92rem;margin-bottom:24px;max-width:480px;margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:30px;font-weight:700;font-size:0.88rem;transition:all 0.3s;text-decoration:none}
.btn-primary{background:var(--grad);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,188,212,0.25);opacity:1}
.btn-ghost{background:transparent;color:var(--cyan);border:1.5px solid rgba(0,188,212,0.3);margin-left:12px}
.btn-ghost:hover{background:rgba(0,188,212,0.06)}

/* FOOTER MINI */
.article-footer{border-top:1px solid var(--border-card);padding:32px 24px;text-align:center;color:var(--text-4);font-size:0.8rem}
.article-footer a{color:var(--cyan)}

/* BREADCRUMB */
.breadcrumb{padding:88px 24px 0;max-width:780px;margin:0 auto;display:flex;align-items:center;gap:8px;font-size:0.78rem;color:var(--text-4)}
.breadcrumb a{color:var(--text-4);transition:color 0.2s}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{opacity:0.4}

@media(max-width:640px){
  .article-hero{padding:100px 16px 40px}
  .article-layout{padding:0 16px 60px}
  .cta-box{padding:24px 20px}
  .btn-ghost{margin-left:0;margin-top:10px}
  .cta-box .btn{display:flex;width:100%;justify-content:center}
}