body {
    font-family: Arial, sans-serif;
    max-width: 900px;
    margin: 24px auto;
    padding: 0 16px;
    color: #222;
    line-height: 1.5;
}

header h1 {
    font-size: 2rem;
    margin: 0 0 6px 0;
}

header p {
    margin: 0 0 10px 0;
    color: #444;
}

nav {
    margin: 12px 0;
}

nav a {
    color: #0b66c2;
    text-decoration: none;
    margin-right: 12px;
}

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

.photos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 12px;
}

.photo {
    width: 30%;
    max-width: 280px;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.12);
    margin: 6px;
}

.video-wrap {
    max-width: 640px;
    margin: 14px auto;
}

.video-wrap iframe,
.video-wrap video {
    width: 100%;
    height: 360px;
    border: 0;
    display: block;
}

main section {
    margin: 14px 0;
}

footer {
    margin-top: 20px;
    color: #666;
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .photo {
        width: 100%;
    }
}