body {
    margin: 0;
    font-family: Arial, sans-serif;
    font-size: 18px; 
    color: white;
    line-height: 1.6;
}

h2 {
    font-size: 28px; 
}

p, li, td {
    font-size: 20px;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://wallpaper.forfun.com/fetch/12/127b0fea9b34029b600b1ae1719687db.jpeg') no-repeat center center/cover;
    z-index: -1;
    animation: slide 20s infinite alternate;
}

@keyframes slide {
    0% {
        filter: brightness(0.8) saturate(1);
        transform: scale(1);
    }
    100% {
        filter: brightness(1) saturate(1.2);
        transform: scale(1.1);
    }
}


nav {
    background: rgba(0, 0, 0, 0.7);
    padding: 10px;
    position: sticky;
    top: 0;
    z-index: 10;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 10px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    font-size: 20px; 
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #ffd700;
}

main {
    padding: 20px;
}

.card {
    background: rgba(0, 0, 0, 0.8);
    margin: 20px auto;
    padding: 20px;
    border-radius: 15px;
    max-width: 900px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.presentation-content {
    display: flex;
    align-items: center;
}

.presentation-content img {
    border-radius: 15px;
    max-width: 200px;
    margin-right: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    margin-top: 10px;
}

thead th {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 10px;
    font-size: 22px; 
}

tbody td {
    padding: 10px;
}


.gallery {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.gallery img {
    max-width: 30%;
    border-radius: 10px;
    transition: transform 0.3s;
}

.gallery img:hover {
    transform: scale(1.05);
}

a {
    color: #ffd700;
    text-decoration: none;
    font-size: 20px;
}

a:hover {
    text-decoration: underline;
}