body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    color: white;
    padding: 1rem;
    text-align: center;
}

main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    padding: 1rem;
}

header input {
    width: 80%;
    max-width: 400px;
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 5px;
    position: relative;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

#modal-img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 5px;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #333;
    color: white;
}