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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4; 
}

header {
    background: darkblue;
    color: white;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

header .logo {
    font-size: 2em;
    margin-bottom: 10px;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #FFD700;
}


.section {
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    text-align: center;
}

.section h2 {
    margin-bottom: 20px;
    font-size: 2em;
    color: darkblue;
    border-bottom: 2px solid darkblue;
    padding-bottom: 10px;
}

.thumbnail {
    width: 100%; 
    height: auto; 
    border-radius: 10px;
    transition: transform 0.3s;
    margin: 10px 0;
     
}
input, select, textarea {
    width: 100%; 
    padding: 10px; 
    margin-top: 5px; 
    border: 1px solid #ccc; 
    border-radius: 5px; 
    transition: border-color 0.3s; 
}

input:focus, select:focus, textarea:focus {
    border-color: darkblue;
}


.thumbnail:hover {
    transform: scale(1.05);
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.gallery img {
    width: calc(33% - 10px);
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.3s;
}


.gallery img:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.quiz {
    background-color: #e9ecef;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

footer {
    text-align: center;
    padding: 20px;
    background: darkblue;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}

@media (max-width: 768px) {
    .gallery img {
        width: calc(50% - 10px);
    }
}

@media (max-width: 480px) {
    .gallery img {
        width: 100%;
    }
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    padding-top: 60px;
}

.modal-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #ffffff;
    font-size: 40px;
    font-weight: bold;
    transition: color 0.3s;
}

.close:hover,
.close:focus {
    color: #FFD700;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-30px); }
    60% { transform: translateY(-15px); }
}