header { position: sticky; top: 0; backdrop-filter: saturate(180%) blur(10px); background: color-mix(in srgb, var(--bg) 70%, transparent); border-bottom: 1px solid var(--line); z-index: 50; }
    .nav { display: flex; align-items: center; justify-content: space-between; padding: .9rem 0; }
    .logo { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; letter-spacing: .5px; }
    .logo-mark { width: 28px; height: 28px; border: 2px solid var(--fg); border-radius: 6px; display: grid; place-items: center; font-size: .9rem; }
    .nav a { opacity: .9; }
    .nav .links { display: none; gap: 1.2rem; }
    @media (min-width: 800px) { .nav .links { display: flex; } }

    /* Menu burger */
    .burger-menu { 
        display: flex; 
        flex-direction: column; 
        justify-content: space-around; 
        width: 24px; 
        height: 18px; 
        background: transparent; 
        border: none; 
        cursor: pointer; 
        padding: 0; 
        z-index: 10;
    }
    @media (min-width: 800px) { .burger-menu { display: none; } }
    
    .burger-menu span { 
        width: 100%; 
        height: 2px; 
        background: var(--fg); 
        border-radius: 1px; 
        transition: all 0.3s ease; 
        transform-origin: center;
    }
    
    .burger-menu.active span:nth-child(1) { 
        transform: rotate(45deg) translate(5px, 5px); 
    }
    .burger-menu.active span:nth-child(2) { 
        opacity: 0; 
    }
    .burger-menu.active span:nth-child(3) { 
        transform: rotate(-45deg) translate(7px, -6px); 
    }

    /* Navigation mobile */
    .mobile-nav { 
        position: fixed; 
        top: 0; 
        right: -100%; 
        width: 280px; 
        height: 100vh; 
        background: var(--bg); 
        border-left: 1px solid var(--line); 
        padding: 80px 24px 24px; 
        display: flex; 
        flex-direction: column; 
        gap: 1.5rem; 
        transition: right 0.3s ease; 
        z-index: 5;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    }
    @media (min-width: 800px) { .mobile-nav { display: none; } }
    
    .mobile-nav.open { 
        right: 0; 
    }
    
    .mobile-nav a { 
        padding: 12px 0; 
        border-bottom: 1px solid var(--line); 
        font-weight: 500; 
        transition: color 0.2s ease;
    }
    .mobile-nav a:hover { 
        color: var(--muted); 
    }
    
    /* Overlay pour fermer le menu */
    .nav-overlay { 
        position: fixed; 
        top: 0; 
        left: 0; 
        width: 100%; 
        height: 100%; 
        background: rgba(0, 0, 0, 0.5); 
        opacity: 0; 
        visibility: hidden; 
        transition: all 0.3s ease; 
        z-index: 4;
    }
    @media (min-width: 800px) { .nav-overlay { display: none; } }
    
          .nav-overlay.active { 
        opacity: 1; 
        visibility: visible; 
      }


    :root {
        --bg: #fff;
        --fg: #0a0a0a;
        --muted: #8a8a8a;
        --line: #e6e6e6;
      }
      * { box-sizing: border-box; }
      html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: ui-sans-serif, system-ui, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Noto Color Emoji; }
      a { color: inherit; text-decoration: none; }
      img { max-width: 100%; display: block; }
      .container { width: min(1100px, 92%); margin: 0 auto; }
      .btn { display: inline-flex; align-items: center; gap: .6rem; border: 1px solid var(--fg); padding: .9rem 1.2rem; border-radius: 999px; font-weight: 600; background: var(--fg); color: #fff; transition: transform .06s ease, background .2s ease; }
      .btn:hover { transform: translateY(-1px); }
      .btn.secondary { background: transparent; color: var(--fg); }
      
  
      /* Hero */
      .hero { padding: 6rem 0 3.5rem; }
      .hero h1 { font-size: clamp(2rem, 3.5vw, 3.2rem); letter-spacing: -0.02em; line-height: 1.08; margin: 0 0 1rem; }
      .hero p { color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.15rem); max-width: 55ch; }
      .hero-cta { margin-top: 1.6rem; display: flex; gap: .8rem; flex-wrap: wrap; }
      .hero-badge { display: inline-flex; gap: .4rem; align-items: center; border: 1px dashed var(--line); color: var(--muted); padding: .4rem .7rem; border-radius: 999px; margin-bottom: .8rem; }
  
      /* Mock gallery */
      .stage { margin-top: 2.2rem; border: 1px solid var(--line); border-radius: 18px; padding: 22px; background: #fff; }
      .grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
      .card { background: #fff; border: 1px solid var(--fg); border-radius: 10px; 
        aspect-ratio: unset;
         position: relative; overflow: hidden; display: grid; place-items: center; }
      .card::after { position: absolute; inset: 0; display: grid; place-items: center; font-weight: 800; font-size: clamp(.7rem, 1.2vw, .95rem); color: #fff; mix-blend-mode: difference; }
      .card .label { position: absolute; bottom: 8px; left: 8px; right: 8px; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; background: #000; color: #fff; padding: 6px 8px; border-radius: 6px; }
      .card.striped { background: repeating-linear-gradient(135deg, #000 0 8px, #fff 8px 16px); }
      .card.dots { background: radial-gradient(#000 1px, transparent 1px) 0 0/8px 8px, #fff; }
      .card.gridbk { background: linear-gradient(#fff, #fff),
                                 linear-gradient(#000, #000);
                      background-origin: padding-box, border-box;
                      background-clip: content-box, border-box; }
    .cart-landing .card {
        aspect-ratio: 2/3;
    }
  
      /* Features */
      section { padding: 4.5rem 0; }
      .section-title { font-size: clamp(1.4rem, 2.4vw, 2rem); margin: 0 0 1rem; }
      .kicker { text-transform: uppercase; font-weight: 700; font-size: .78rem; letter-spacing: .13em; color: var(--muted); }
      .features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
      .feature { border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
      .feature h3 { margin: 0 0 .5rem; font-size: 1rem; }
      .feature p { margin: 0; color: var(--muted); }
  
      /* Pricing */
      .pricing { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); align-items: stretch; }
      .plan { border: 1px solid var(--fg); border-radius: 16px; padding: 22px; display: grid; align-content: start; gap: .9rem; }
      .plan h3 { margin: 0; }
      .price { font-size: 2rem; font-weight: 800; }
      .muted { color: var(--muted); }
      .list { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
      .list li::before { content: "✓"; margin-right: .5rem; }
  
      /* How it works */
      .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
      .step { border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
      .step .num { width: 28px; height: 28px; border: 1px solid var(--fg); border-radius: 50%; display: grid; place-items: center; font-weight: 700; margin-bottom: .6rem; }
  
      /* CTA */
      .cta { text-align: center; padding: 5rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
      .cta h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 .7rem; }
  
      /* FAQ */
      details { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
      details + details { margin-top: 10px; }
      summary { cursor: pointer; font-weight: 700; }
  
      footer { padding: 2.8rem 0; color: var(--muted); border-top: 1px solid var(--line); }
      .foot { display: grid; grid-template-columns: 1fr; gap: .8rem; align-items: center; }
      @media (min-width: 800px) { .foot { grid-template-columns: 1fr auto; } }
  
      /* Modal plein écran */
      .modal { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.9); }
      .modal.show { display: flex; align-items: center; justify-content: center; }
      .modal-content { max-width: 90%; max-height: 90%; object-fit: contain; cursor: pointer; }
      .modal-close { position: absolute; top: 20px; right: 35px; color: #fff; font-size: 40px; font-weight: bold; cursor: pointer; z-index: 1001; }
      .modal-close:hover { opacity: 0.7; }
      .preview-image { cursor: pointer; transition: transform 0.2s ease; }
      .preview-image:hover { transform: scale(1.02); }