body {
            font-family: 'Segoe UI', sans-serif;
            margin: 0;
        }

        header {
            padding: 1rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1.5px solid black;
             box-sizing: border-box;
             position: relative;
             z-index: 1000;
        }

        .logo {
            font-size: 2rem;
            font-weight: bold;
            color:#000;
            text-decoration: none;
        }

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

        nav ul li a {
            text-decoration: none;
            color:#000;
            font-weight: bold;
        }

        nav ul li a:hover {
            text-decoration: underline;
        }

        /* BOUTON BURGER - CACHÉ PAR DÉFAUT */
        .menu-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 2rem;
        cursor: pointer;
        }


/* Hero */
.hero {
    padding: 5rem;
}

 .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 900px;
    margin: auto;
}

.hero-image, img {
    max-width: 450px;
    border-radius: 1rem;
}



.tagline {
    color:purple;
    font-weight: bold;
}



/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
}

.btn.primary {
    border: 2px solid black;
    color: black;
}

.btn.primary:hover {
    background: black;
    color:white;
}

.btn.secondary {
     border: 2px solid black;
    color: black;
}

.btn.secondary:hover {
    background: black;
    color: white;
}




/* Responsive */
@media (max-width: 768px) {
 /* on affiche le bouton */
  .menu-toggle {
    display: block;
  }

  /* le menu se cache par défaut */
  nav ul {
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 0;
    width: 100%;
    background-color: white;
    border-top: 1px solid black;
    display: none;
    text-align: center;
    padding: 1rem 0;
  }

  /* quand la classe .show est active */
  nav ul.show {
    display: flex;
  }
.hero, .container {
        flex-direction: column;
    }
    
   }