body {
    font-family: Arial, sans-serif;
    margin: 0;
    background-color: #e0f7fa;
    color: #003b46;
}
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #006064;
    padding: 10px 20px;
}
.logo {
    height: 80px;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 15px;
}
nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-weight: bold;
}
.hero img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
}
main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}
.tile {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.tile img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
footer {
    background-color: #004d40;
    color: #ffffff;
    text-align: center;
    padding: 10px;
}