/* Base Reset & Font */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

/* Header */
header {
    background-color: #004d99;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    border-radius: 8px;
}
header h1 {
    margin-bottom: 10px;
    font-size: 2rem;
}
nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
    font-weight: bold;
    transition: color 0.3s ease;
}
nav a:hover {
    color: #ffcc00;
}

/* Main Content */
main {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 20px;
}
section {
    margin-bottom: 40px;
}
h2 {
    margin-bottom: 10px;
    color: #004d99;
}
p {
    font-size: 1rem;
    margin-bottom: 15px;
}

/* Image */
figure {
    margin-top: 15px;
    text-align: center;
}
figure img {
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
figcaption {
    margin-top: 8px;
    font-style: italic;
}

/* Video */
iframe {
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
    font-size: 0.9rem;
    color: #666;
}

/* Responsive Design */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5rem;
    }
    nav a {
        display: block;
        margin: 8px 0;
    }
    iframe {
        width: 100%;
        height: auto;
    }
}