/* style.css */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
}

main {
    max-width: 1200px; /* allow wider grid */
    margin: 20px auto;
    padding: 0 20px;
}

/* === 3-column layout using CSS Grid === */
.tiles-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* === Tile styling === */
.tile {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
    border-radius: 10px;
    transition: transform 0.3s ease-in-out;
}

.tile:hover {
    transform: scale(1.05);
}

/* === Link styling === */
a,
a:visited {
    text-decoration: none;
    color: inherit;
}

a:focus {
    outline: 2px solid #0078d7;
    outline-offset: 2px;
}

a:hover,
a:active {
    text-decoration: none;
}

/* === Responsive behavior === */
@media (max-width: 900px) {
    .tiles-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .tiles-container {
        grid-template-columns: 1fr;
    }
}

/* === Footer === */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
}