/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
@keyframes countUp{from{opacity:0}to{opacity:1}}
@keyframes lineGrow{from{width:0}to{width:100%}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

.anim-in{opacity:0;transform:translateY(36px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.anim-in.visible{opacity:1;transform:translateY(0)}
.anim-delay-1{transition-delay:.1s}
.anim-delay-2{transition-delay:.2s}
.anim-delay-3{transition-delay:.3s}
.anim-delay-4{transition-delay:.4s}

/* ── Argument sections ─────────────────────────────────────── */
.arg-section{display:grid;align-items:center;position:relative;overflow:hidden}
.arg-inner{display:grid;grid-template-columns:1fr 1fr}

.arg-text{padding:80px 64px;display:flex;flex-direction:column;justify-content:center;position:relative;z-index:2}
.arg-img{position:relative;overflow:hidden}
.arg-img img{width:100%;height:100%;object-fit:cover;object-position:center center;display:block;transform:scale(1.05);transition:transform 8s ease}
.arg-img:hover img{transform:scale(1)}

.arg-number{font-family:'Signika',sans-serif;font-size:8rem;font-weight:700;line-height:1;color:var(--cyan);opacity:.12;position:absolute;top:24px;left:48px;pointer-events:none;user-select:none}
.arg-label{font-size:.72rem;text-transform:uppercase;letter-spacing:4px;color:var(--cyan);font-weight:700;margin-bottom:20px}
.arg-title{font-family:'Signika',sans-serif;font-size:clamp(2rem,4vw,3.2rem);font-weight:700;color:var(--heading);line-height:1.15;margin-bottom:24px}
.arg-title em{color:var(--cyan);font-style:normal}
.arg-body{font-size:1.05rem;color:var(--text);line-height:1.8;max-width:520px}
.arg-stat{margin-top:36px;display:flex;gap:32px;flex-wrap:wrap}
.arg-stat-item{text-align:center}
.arg-stat-num{font-family:'Signika',sans-serif;font-size:2.8rem;font-weight:700;color:var(--navy);line-height:1}
.arg-stat-label{font-size:.78rem;color:var(--text);margin-top:4px;max-width:100px;line-height:1.4}

/* Dark variant */
.arg-section.dark .arg-text{background:var(--navy)}
.arg-section.dark .arg-title{color:#f1f5f9}
.arg-section.dark .arg-body{color:#94a3b8}
.arg-section.dark .arg-number{color:#fff;opacity:.06}
.arg-section.dark .arg-stat-num{color:#f1f5f9}
.arg-section.dark .arg-stat-label{color:#64748b}

/* ── Ratio visual (arg 1) ──────────────────────────────────── */
.ratio-visual{margin-top:40px}
.ratio-bar-wrap{margin-bottom:16px}
.ratio-bar-label{display:flex;justify-content:space-between;font-size:.8rem;color:var(--text);margin-bottom:6px}
.ratio-bar-track{height:10px;background:#e8ecf0;border-radius:99px;overflow:hidden}
.ratio-bar-fill{height:100%;border-radius:99px;width:0;transition:width 1.4s cubic-bezier(.22,1,.36,1)}
.ratio-bar-fill.cyan{background:var(--cyan)}
.ratio-bar-fill.navy{background:var(--navy);opacity:.35}
@media(prefers-color-scheme:dark){
  .ratio-bar-track{background:#1e293b}
  .arg-section.dark .ratio-bar-track{background:#0f172a}
}

/* ── Scale visual (arg 2) ──────────────────────────────────── */
.scale-steps{margin-top:40px;display:flex;align-items:flex-end;gap:12px}
.scale-step{display:flex;flex-direction:column;align-items:center;gap:8px}
.scale-bar{width:48px;background:var(--cyan);border-radius:6px 6px 0 0;transition:height 1.2s cubic-bezier(.22,1,.36,1);height:0}
.scale-step-label{font-size:.72rem;color:var(--text);text-align:center;line-height:1.3;white-space:nowrap}
.scale-step-val{font-family:'Signika',sans-serif;font-size:.85rem;font-weight:700;color:var(--navy)}
.scale-connector{width:20px;height:2px;background:var(--cyan);opacity:.4;margin-bottom:16px;align-self:flex-end;margin-bottom:48px}
@media(prefers-color-scheme:dark){.scale-step-val{color:#f1f5f9}.scale-step-label{color:#64748b}}

/* ── Usage stack (arg 3) ───────────────────────────────────── */
.usage-stack{margin-top:40px;display:flex;flex-direction:column;gap:12px}
.usage-row{display:flex;align-items:center;gap:16px;padding:14px 20px;border-radius:10px;border:1px solid #e8ecf0;background:#f8faff;opacity:0;transform:translateX(-20px);transition:opacity .5s ease,transform .5s ease}
.usage-row.visible{opacity:1;transform:translateX(0)}
.usage-icon{width:36px;height:36px;border-radius:8px;background:var(--navy);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.usage-icon svg{width:18px;height:18px}
.usage-name{font-weight:600;font-size:.9rem;color:var(--heading);flex:1}
.usage-badge{font-size:.72rem;background:rgba(83,186,143,.15);color:var(--cyan);border:1px solid rgba(83,186,143,.3);border-radius:99px;padding:3px 10px;white-space:nowrap;font-weight:600}
.usage-plus{font-size:1.2rem;color:var(--cyan);font-weight:700;margin:0 -4px}
.usage-total{margin-top:20px;padding:16px 20px;border-radius:10px;background:var(--navy);color:#fff;display:flex;justify-content:space-between;align-items:center;opacity:0;transition:opacity .6s .8s}
.usage-total.visible{opacity:1}
.usage-total-label{font-size:.85rem;opacity:.7}
.usage-total-val{font-family:'Signika',sans-serif;font-size:1.1rem;font-weight:700;color:var(--cyan)}
@media(prefers-color-scheme:dark){
  .usage-row{background:#1e293b;border-color:#334155}
  .usage-name{color:#f1f5f9}
}

/* ── Ecosystem nodes (arg 4) ───────────────────────────────── */
.eco-nodes{margin-top:40px;display:flex;flex-direction:column;gap:16px}
.eco-node{display:flex;align-items:flex-start;gap:16px;padding:20px 24px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease,border-color .3s}
.eco-node.visible{opacity:1;transform:translateY(0)}
.eco-node:hover{border-color:var(--cyan);background:rgba(83,186,143,.08)}
.eco-node-dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);flex-shrink:0;margin-top:5px;animation:floatY 3s ease infinite}
.eco-node-content h4{color:#f1f5f9;font-size:.95rem;margin-bottom:4px;font-weight:600}
.eco-node-content p{color:#64748b;font-size:.85rem;line-height:1.6}
.eco-node-tag{display:inline-block;font-size:.68rem;background:rgba(83,186,143,.12);color:var(--cyan);border-radius:4px;padding:2px 8px;margin-top:8px;font-weight:600;letter-spacing:.5px}

/* ── Hero (utilise .hero / .hero-bg / .hero-overlay / .hero-content de main.css) ── */
.avt-hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(83,186,143,.15);border:1px solid rgba(83,186,143,.35);padding:6px 16px;border-radius:99px;font-size:.75rem;color:var(--cyan);font-weight:600;letter-spacing:2px;text-transform:uppercase;margin-bottom:28px}
.avt-hero-tag span{width:6px;height:6px;background:var(--cyan);border-radius:50%;animation:pulse 2s infinite}
.hero-title em{color:var(--cyan);font-style:normal}
.avt-hero-sub{font-size:1.1rem;color:rgba(255,255,255,.75);max-width:560px;line-height:1.7;margin-bottom:40px}
.avt-hero-kpis{display:flex;gap:0;flex-wrap:wrap;border:1px solid rgba(255,255,255,.12);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.04);backdrop-filter:blur(8px)}
.avt-kpi{padding:20px 28px;border-right:1px solid rgba(255,255,255,.1);flex:1;min-width:100px}
.avt-kpi:last-child{border-right:none}
.avt-kpi-val{font-family:'Signika',sans-serif;font-size:1.8rem;font-weight:700;color:var(--cyan)}
.avt-kpi-lab{font-size:.72rem;color:rgba(255,255,255,.55);margin-top:4px;line-height:1.4}

/* ── CTA final ─────────────────────────────────────────────── */
.avt-cta{background:var(--navy);padding:100px 24px;text-align:center}
.avt-cta h2{font-family:'Signika',sans-serif;font-size:clamp(1.8rem,4vw,2.8rem);color:#fff;margin-bottom:16px}
.avt-cta p{color:rgba(255,255,255,.65);font-size:1.05rem;margin-bottom:40px;max-width:500px;margin-left:auto;margin-right:auto}
.avt-cta .cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ── Responsive ────────────────────────────────────────────── */
@media(max-width:900px){
  .arg-inner{grid-template-columns:1fr!important}
  .arg-img{min-height:300px;order:-1}
  .arg-text{padding:60px 32px}
  .arg-number{font-size:5rem;top:16px;left:20px}
  .avt-kpi{padding:16px 20px}
  .avt-kpi-val{font-size:1.4rem}
  .scale-steps{flex-wrap:wrap}
}
@media(max-width:600px){
  .arg-text{padding:48px 20px}
  .avt-hero-kpis{flex-direction:column}
  .avt-kpi{border-right:none;border-bottom:1px solid rgba(255,255,255,.1)}
  .avt-kpi:last-child{border-bottom:none}
}