body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background: #35424a;
    color: #ffffff;
    padding: 10px 0;
    text-align: center;
}

h1 {
    margin: 0;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* Two columns layout */
    gap: 15px;
}

.grid-item {
    background: #ffffff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.wide {
    grid-column: span 2; /* Span two columns for wide images */
}

.tall {
    grid-row: span 2; /* Span two rows for tall images */
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
}

footer {
    text-align: center;
    padding: 10px 0;
    background: #35424a;
    color: #ffffff;
    position: relative;
    bottom: 0;
    width: 100%;
}