*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg: #0a0a0f;
      --bg2: #111118;
      --card: #16161f;
      --border: rgba(255,255,255,0.08);
      --text: #e8e8f0;
      --muted: #8888aa;
      --accent: #7c5cfc;
      --accent2: #5ceafc;
      --gradient: linear-gradient(135deg, #7c5cfc 0%, #5ceafc 100%);
      --glow: 0 0 60px rgba(124,92,252,0.3);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Inter', sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* ─── NOISE OVERLAY ─── */
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
      pointer-events: none;
      z-index: 0;
      opacity: 0.4;
    }

    /* ─── NAV ─── */
    nav {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1rem 5%;
      background: rgba(10,10,15,0.8);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border);
    }

    .logo {
      font-size: 1.4rem;
      font-weight: 800;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      list-style: none;
    }

    .nav-links a {
      color: var(--muted);
      text-decoration: none;
      font-size: 0.9rem;
      font-weight: 500;
      transition: color 0.2s;
    }

    .nav-links a:hover { color: var(--text); }

    .nav-cta {
      background: var(--gradient);
      color: #fff !important;
      padding: 0.55rem 1.3rem;
      border-radius: 8px;
      font-weight: 600 !important;
      font-size: 0.85rem !important;
      transition: opacity 0.2s !important;
    }

    .nav-cta:hover { opacity: 0.85; }

    /* ─── HERO ─── */
    .hero {
      position: relative;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 5% 80px;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -30%;
      left: 50%;
      transform: translateX(-50%);
      width: 900px;
      height: 900px;
      background: radial-gradient(ellipse, rgba(124,92,252,0.18) 0%, rgba(92,234,252,0.06) 40%, transparent 70%);
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(124,92,252,0.12);
      border: 1px solid rgba(124,92,252,0.3);
      color: #a78bfa;
      font-size: 0.8rem;
      font-weight: 600;
      padding: 0.4rem 1rem;
      border-radius: 999px;
      margin-bottom: 1.8rem;
      letter-spacing: 0.5px;
    }

    .hero-badge span { width: 6px; height: 6px; background: #a78bfa; border-radius: 50%; animation: pulse 2s infinite; }

    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.3)} }

    /* ✅ H1 SEO optimisé */
    h1 {
      font-size: clamp(2.4rem, 6vw, 4rem);
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -1.5px;
      margin-bottom: 1.5rem;
      max-width: 820px;
    }

    h1 span {
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: 1.15rem;
      color: var(--muted);
      max-width: 560px;
      margin-bottom: 2.5rem;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
      justify-content: center;
    }

    .btn-primary {
      background: var(--gradient);
      color: #fff;
      padding: 0.9rem 2rem;
      border-radius: 10px;
      font-weight: 700;
      font-size: 1rem;
      text-decoration: none;
      transition: transform 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 24px rgba(124,92,252,0.4);
    }

    .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,92,252,0.55); }

    .btn-secondary {
      background: transparent;
      color: var(--text);
      padding: 0.9rem 2rem;
      border-radius: 10px;
      font-weight: 600;
      font-size: 1rem;
      text-decoration: none;
      border: 1px solid var(--border);
      transition: border-color 0.2s, background 0.2s;
    }

    .btn-secondary:hover { border-color: var(--accent); background: rgba(124,92,252,0.06); }

    .hero-stats {
      display: flex;
      gap: 3rem;
      margin-top: 4rem;
      flex-wrap: wrap;
      justify-content: center;
    }

    .stat { text-align: center; }
    .stat strong { display: block; font-size: 1.8rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .stat span { font-size: 0.85rem; color: var(--muted); }

    /* ─── SECTION COMMONS ─── */
    section { position: relative; z-index: 1; }

    .section-label {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 1rem;
    }

    h2 {
      font-size: clamp(1.8rem, 4vw, 2.6rem);
      font-weight: 800;
      letter-spacing: -1px;
      line-height: 1.15;
      margin-bottom: 1rem;
    }

    h2 span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

    .section-sub {
      color: var(--muted);
      font-size: 1.05rem;
      max-width: 560px;
      line-height: 1.7;
    }

    .container {
      max-width: 1160px;
      margin: 0 auto;
      padding: 100px 5%;
    }

    .text-center { text-align: center; }
    .text-center .section-sub { margin: 0 auto; }

    /* ─── PROBLÈME / SOLUTION ─── */
    .problem-strip {
      background: var(--bg2);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .problem-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 0;
    }

    .problem-item {
      padding: 2.5rem 2rem;
      border-right: 1px solid var(--border);
      display: flex;
      align-items: flex-start;
      gap: 1rem;
    }

    .problem-item:last-child { border-right: none; }

    .problem-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }

    .problem-item h3 { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 0.3rem; }
    .problem-item p { font-size: 0.85rem; color: var(--muted); line-height: 1.5; }

    /* ─── SERVICES ─── */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5px;
      margin-top: 4rem;
      background: var(--border);
      border: 1px solid var(--border);
      border-radius: 20px;
      overflow: hidden;
    }

    .service-card {
      background: var(--card);
      padding: 2.5rem;
      position: relative;
      transition: background 0.3s;
    }

    .service-card:hover { background: #1a1a26; }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--gradient);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .service-card:hover::before { opacity: 1; }

    .service-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(124,92,252,0.12);
      border: 1px solid rgba(124,92,252,0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 1.5rem;
    }

    .service-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text);
    }

    .service-card p {
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.65;
      margin-bottom: 1.5rem;
    }

    .service-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .service-list li {
      font-size: 0.85rem;
      color: var(--muted);
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .service-list li::before { content: '✓'; color: var(--accent); font-weight: 700; }

    /* ─── HOW IT WORKS ─── */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 2rem;
      margin-top: 4rem;
      counter-reset: steps;
    }

    .step-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 2rem;
      position: relative;
      counter-increment: steps;
    }

    .step-num {
      font-size: 3rem;
      font-weight: 800;
      background: var(--gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1;
      margin-bottom: 1rem;
      opacity: 0.5;
    }

    .step-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
    .step-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

    /* ─── DIFFERENTIATEURS ─── */
    .diff-section { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

    .diff-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }

    .diff-list { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 2.5rem; }

    .diff-item {
      display: flex;
      gap: 1rem;
      align-items: flex-start;
    }

    .diff-dot {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: rgba(124,92,252,0.12);
      border: 1px solid rgba(124,92,252,0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .diff-item h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.25rem; }
    .diff-item p { font-size: 0.85rem; color: var(--muted); line-height: 1.5; }

    .diff-visual {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 2rem;
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .diff-visual-row {
      display: flex;
      align-items: center;
      gap: 1rem;
      padding: 1rem;
      border-radius: 12px;
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--border);
    }

    .diff-visual-row.active { background: rgba(124,92,252,0.08); border-color: rgba(124,92,252,0.3); }

    .diff-visual-row .label { font-size: 0.85rem; color: var(--muted); flex: 1; }
    .diff-visual-row.active .label { color: var(--text); }

    .diff-bar { height: 6px; border-radius: 99px; background: var(--border); flex: 2; overflow: hidden; }
    .diff-fill { height: 100%; border-radius: 99px; background: var(--gradient); }

    /* ─── FAQ ─── */
    .faq-grid { max-width: 760px; margin: 4rem auto 0; display: flex; flex-direction: column; gap: 1rem; }

    .faq-item {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 14px;
      overflow: hidden;
    }

    .faq-q {
      width: 100%;
      background: none;
      border: none;
      color: var(--text);
      font-family: inherit;
      font-size: 0.95rem;
      font-weight: 600;
      padding: 1.3rem 1.5rem;
      text-align: left;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
    }

    .faq-q .arrow { font-size: 1.2rem; transition: transform 0.2s; color: var(--muted); }
    .faq-item.open .arrow { transform: rotate(45deg); }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      font-size: 0.9rem;
      color: var(--muted);
      line-height: 1.7;
    }

    .faq-item.open .faq-a { max-height: 300px; }
    .faq-a-inner { padding: 0 1.5rem 1.3rem; }

    /* ─── CTA SECTION ─── */
    .cta-section {
      text-align: center;
      padding: 120px 5%;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: '';
      position: absolute;
      bottom: -20%;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 700px;
      background: radial-gradient(ellipse, rgba(92,234,252,0.1) 0%, transparent 60%);
      pointer-events: none;
    }

    .cta-box {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 4rem 3rem;
      max-width: 700px;
      margin: 0 auto;
      position: relative;
      overflow: hidden;
    }

    .cta-box::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--gradient);
    }

    .cta-box h2 { font-size: 2rem; margin-bottom: 1rem; }
    .cta-box p { color: var(--muted); margin-bottom: 2rem; }

    .contact-info {
      display: flex;
      gap: 1.5rem;
      justify-content: center;
      flex-wrap: wrap;
      margin-top: 2rem;
    }

    .contact-pill {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255,255,255,0.04);
      border: 1px solid var(--border);
      padding: 0.5rem 1rem;
      border-radius: 999px;
      font-size: 0.85rem;
      color: var(--muted);
      text-decoration: none;
      transition: border-color 0.2s;
    }

    .contact-pill:hover { border-color: var(--accent); color: var(--text); }

    /* ─── FOOTER ─── */
    footer {
      border-top: 1px solid var(--border);
      padding: 3rem 5%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1.5rem;
    }

    .footer-left { display: flex; flex-direction: column; gap: 0.4rem; }
    .footer-copy { font-size: 0.8rem; color: var(--muted); }

    .footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
    .footer-links a { font-size: 0.82rem; color: var(--muted); text-decoration: none; transition: color 0.2s; }
    .footer-links a:hover { color: var(--text); }

    /* ─── RESPONSIVE ─── */
    @media (max-width: 768px) {
      .nav-links { display: none; }
      .diff-grid { grid-template-columns: 1fr; }
      .problem-grid { grid-template-columns: 1fr; }
      .services-grid { grid-template-columns: 1fr; }
      .problem-item { border-right: none; border-bottom: 1px solid var(--border); }
      .problem-item:last-child { border-bottom: none; }
      footer { flex-direction: column; text-align: center; }
      .hero-stats { gap: 2rem; }
      #contact .container > div { grid-template-columns: 1fr !important; gap: 2rem !important; }
    }