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

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
        }
/* Header blanc */
header {
  background-color: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Container général */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Contenu du header */
.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100px;           /* hauteur fixe */
  position: relative;
}

/* Texte à gauche */
/* Texte à gauche */
.header-left {
    font-size: 24px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;  /* même transition que le menu */
    display: inline-block;       /* nécessaire pour que padding et transform fonctionnent */
    background: none;            /* fond par défaut */
    color: #333;                 /* couleur par défaut */
}

.header-left:hover {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    transform: translateY(-2px);
}


/* Logo GIF au centre */
.header-center {
  position: absolute;      /* position centrale sans pousser le texte ou le menu */
  left: 50%;
  transform: translateX(-50%);
}

.header-center img {
  height: 120px;           /* légèrement plus grand que le texte */
  width: auto;
  display: block;
}

/* Menu à droite */
.header-right {
  flex: 1;                 /* espace à droite */
  display: flex;
  justify-content: flex-end;
}

.header-right ul {
  display: flex;
  list-style: none;
  gap: 30px;
  margin: 0;
  padding: 0;
}

.header-right a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
  transition: color 0.3s;
}

.header-right a:hover {
  color: #fff;
}

/* Responsive mobile */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    height: auto;
    align-items: center;
    gap: 10px;
  }

  .header-center {
    position: static;
    transform: none;
  }

  .header-right ul {
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }
}


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

        nav a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        nav a:hover, nav a.active {
            background: linear-gradient(45deg, #667eea, #764ba2);
            color: white;
            transform: translateY(-2px);
        }

        /* Main Content */
        main {
            min-height: calc(100vh - 200px);
            padding: 2rem 0;
        }

        .page {
            display: none;
            animation: fadeIn 0.5s ease-in;
        }

        .page.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Cards */
        .card {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
            border: 1px solid rgba(255,255,255,0.2);
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 3rem 0;
        }

        .hero h1 {
            font-size: 3rem;
            color: white;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.9);
            margin-bottom: 2rem;
        }

        .cta-button {
            display: inline-block;
            background: linear-gradient(45deg, #ff6b6b, #ee5a24);
            color: white;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 50px;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255,107,107,0.4);
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255,107,107,0.6);
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .service-card {
            background: rgba(255, 255, 255, 0.9);
            padding: 2rem;
            border-radius: 15px;
            text-align: center;
            transition: transform 0.3s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
        }

        .service-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        /* Form */
        .form-group {
            margin-bottom: 1.5rem;
        }

        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
            color: #555;
        }

        input, textarea, select {
            width: 100%;
            padding: 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }

        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #667eea;
        }

        .btn {
            background: linear-gradient(45deg, #667eea, #764ba2);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(102,126,234,0.4);
        }

        /* Footer */
        footer {
            background: rgba(0, 0, 0, 0.8);
            color: white;
            text-align: center;
            padding: 2rem 0;
            margin-top: 3rem;
        }

        .highlight-box {
            background: linear-gradient(45deg, #ffecd2, #fcb69f);
            padding: 1.5rem;
            border-radius: 15px;
            margin: 2rem 0;
            text-align: center;
        }

        .experience-badge {
            background: linear-gradient(45deg, #ff6b6b, #ee5a24);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            font-weight: bold;
            display: inline-block;
            margin: 1rem 0;
        }

        .two-columns {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 1rem;
            }

            .logo {
                flex-direction: column;
                gap: 0.5rem;
            }

            .logo-images {
                gap: 0.5rem;
            }

            .logo-images img {
                width: 40px;
                height: 40px;
            }

            nav ul {
                flex-wrap: wrap;
                justify-content: center;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .two-columns {
                grid-template-columns: 1fr;
            }
        }

        ul {
            text-align: left;
            margin: 1rem 0;
        }

        li {
            margin: 0.5rem 0;
        }