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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header {
    background: #f4f4f4;
    padding: 10px 0;
}

header,
main,
footer {
    max-width: 80%;
    margin: auto;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    background: #333;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline-block;
    margin-right: 20px;
    position: relative;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 15px 20px;
    display: block;
    text-decoration: none;
}

nav ul li a.menu-bleu {
    background: blue;
}

nav ul li a.menu-blanc {
    background: white;
    color: black;
    /* Change text color to black for visibility */
}

nav ul li a.menu-rouge {
    background: red;
}

nav ul li:hover>a {
    background: #555;
}

/* Initial state: submenu is hidden */
nav ul li .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 150px;
    padding: 10px;
    border: 1px solid #ccc;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.submenu li {
    border-bottom: 1px solid #555;
}

.submenu li a {
    padding: 10px;
}

/* Show submenu on hover */
nav ul li:hover .submenu {
    display: block;
    opacity: 1;
}

/* Animation to show submenu */
@keyframes showSubmenu {
    0% {
        display: block;
        opacity: 1;
    }

    100% {
        display: none;
        opacity: 0;
    }
}

/* Apply the animation on page load */
body.loaded nav ul li .submenu {
    display: block;
    opacity: 1;
    animation: showSubmenu 5s forwards;
}

/* After animation, return to initial state for hover */
body.loaded.no-animation nav ul li .submenu {
    display: none;
    opacity: 0;
}

main {
    padding: 20px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

section {
    width: 100%;
    text-align: justify;
}

footer {
    text-align: center;
    padding: 10px 0;
    background: #333;
    color: white;
    position: fixed;
    width: 100%;
    bottom: 0;
}

footer p {
    text-align: center;
    padding: 10px 0;
}


h1 {
    font-size: 40px;
}

h1,
h2,
h3 {
    text-align: center;
}

p {
    margin: 12px 0;
}

h2 {
    margin: 15px 0;
}