/* GLOBAL */
body {
    margin: 0;
    padding: 0;
    background: #eef3f9; /* very light blue */
    color: #000;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* HEADER */
header {
    background: #1e3a5f; /* deep navy blue */
    color: #fff;
    text-align: center;
    padding: 25px 10px;
}

/* MAIN CONTENT */
main {
    width: 93%;
    max-width: 1365px;
    margin: 0 auto;
    padding: 20px 0;
}

/* HIGHLIGHT BOX */
.highlight-box {
    background: #dce6f5; /* soft blue-gray */
    border: 1px solid #b8c7dd; /* light blue border */
    padding: 20px;
    border-radius: 4px;
    margin-bottom: 30px;
}

/* TWO COLUMNS */
.two-columns {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.two-columns .col {
    background: #ffffff;
    border: 1px solid #b8c7dd; /* light blue border */
    padding: 20px;
    border-radius: 4px;
    flex: 1 1 48%;
    box-sizing: border-box;
}

/* IMAGES */
.two-columns img {
    display: block;
    margin: 15px auto 0 auto;
    border-radius: 15px;
    width: 93%;
    max-width: 600px;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 20px;
    color: #1e3a5f;
}

footer a {
    color: #1e3a5f;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .two-columns .col {
        flex: 1 1 100%;
    }
}