@keyframes float {
      0% { transform: translateY(0px); }
      50% { transform: translateY(-10px); }
      100% { transform: translateY(0px); }
    }
    
    .icon-float {
      animation: float 3s ease-in-out infinite;
    }
    
    .gradient-bg {
      background: linear-gradient(135deg, #6366f1, #ec4899, #7c3aed);
      background-size: 200% 200%;
      animation: gradient 8s ease infinite;
    }

    .gradient-bg-alt {
      background: linear-gradient(45deg, #6366f1, #8b5cf6, #ec4899);
      background-size: 200% 200%;
      animation: gradient 8s ease infinite;
    }
    
    @keyframes gradient {
      0% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
      100% { background-position: 0% 50%; }
    }
    
    .card-hover {
      transition: all 0.3s ease;
    }
    
    .card-hover:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .fade-in {
      opacity: 0;
      transform: translateY(20px);
    }
    
    .fade-in.active {
      opacity: 1;
      transform: translateY(0);
    }
    
    .typewriter {
      overflow: hidden;
      border-right: .15em solid white;
      white-space: nowrap;
      margin: 0 auto;
      letter-spacing: .15em;
      animation: typing 3.5s steps(40, end), blink-caret .75s step-end infinite;
    }
    
    @keyframes typing {
      from { width: 0 }
      to { width: 100% }
    }
    
    @keyframes blink-caret {
      from, to { border-color: transparent }
      50% { border-color: white; }
    }

    /* Navigation améliorée */
    .navbar-bg {
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(15px);
      border-bottom: 1px solid rgba(99, 102, 241, 0.1);
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    }

    .nav-link {
      position: relative;
      padding: 0.75rem 1.5rem;
      border-radius: 0.75rem;
      font-weight: 600;
      font-size: 1rem;
      color: #1e293b;
      transition: all 0.3s ease;
      text-decoration: none;
    }

    .nav-link:hover {
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: white;
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
    }

    .phone-btn {
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: white;
      padding: 0.75rem 1.5rem;
      border-radius: 50px;
      font-weight: 700;
      font-size: 0.95rem;
      text-decoration: none;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    }

    .phone-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    }

    .mobile-menu {
      transform: translateX(100%);
      transition: transform 0.3s ease-in-out;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(20px);
    }
    
    .mobile-menu.active {
      transform: translateX(0);
    }

    .mobile-nav-link {
      display: block;
      padding: 1rem 1.5rem;
      color: #1e293b;
      font-weight: 600;
      font-size: 1.1rem;
      text-decoration: none;
      border-radius: 0.75rem;
      margin-bottom: 0.5rem;
      transition: all 0.3s ease;
    }

    .mobile-nav-link:hover {
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: white;
      transform: translateX(10px);
    }

    @keyframes pulse {
      0% { transform: scale(1); }
      50% { transform: scale(1.05); }
      100% { transform: scale(1); }
    }

    .phone-cta {
      animation: pulse 2s infinite;
    }

    .burger-btn {
      position: relative;
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: linear-gradient(135deg, #6366f1, #ec4899);
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .burger-btn:hover {
      transform: scale(1.05);
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    }

    .problem-card {
      background: linear-gradient(135deg, #fef2f2, #fff1f2);
      border-left: 4px solid #dc2626;
      position: relative;
      overflow: hidden;
    }

    .solution-card {
      background: linear-gradient(135deg, #f0fdf4, #f7fee7);
      border-left: 4px solid #16a34a;
      position: relative;
      overflow: hidden;
    }

    .hero-stats {
      backdrop-filter: blur(20px);
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .impact-number {
      font-size: 2.5rem;
      font-weight: 900;
      color: white;
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    .feature-icon {
      background: linear-gradient(135deg, #6366f1, #ec4899);
      color: white;
      width: 60px;
      height: 60px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 1rem;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    }

    .before-after {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      margin: 3rem 0;
    }

    @media (max-width: 768px) {
      .before-after {
        grid-template-columns: 1fr;
        gap: 1rem;
      }
    }