body {
    margin: 0;
    font-family: 'Montserrat', sans-serif;
    background: #f9f9f9;
    color: #333;
}
header {
    background: #ffffff;
    padding: 20px 0;
    text-align: center;
    border-bottom: 1px solid #ddd;
}
.logo {
    width: 140px;
}
nav {
    margin-top: 10px;
}
nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #1e3a8a;
    font-weight: bold;
}
nav a.active {
    text-decoration: underline;
}
main {
    padding: 40px 20px;
    max-width: 1000px;
    margin: auto;
}
h1 {
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 40px;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.gallery-grid img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
footer {
    text-align: center;
    padding: 20px;
    background: #f1f1f1;
    margin-top: 40px;
    font-size: 14px;
}