body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #ffffff;
    color: #333;
}

/* Header */
header {
    text-align: center;
    margin-top: 100px;
    margin-bottom: 20px;
}

.logo {
    width: 317;
    height: auto;
    margin-bottom: 10px;
}

/* Main content */
.content-section {
    display: flex;
    justify-content: center;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.column1 {
    width: 30%;
    text-align: center;
}

.column2 {
    width: 70%;
    text-align: left;
    vertical-align: middle;
    padding-top: 20px;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.5em;
}

.column h2 {
    color: #0077b5;
}

/* Details */
details {
    max-width: 800px;
    margin: 40px auto;
    font-size: 16px;
}

summary {
    font-weight: bold;
    cursor: pointer;
    color: #0077b5;
}

/* Footer */
footer {
    text-align: center;
    margin: 40px 0;
}

.social-links a {
    margin: 0 10px;
    text-decoration: none;
    color: #0077b5;
    font-weight: bold;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .content-section {
        flex-direction: column;
        text-align: center;
    }

    .column {
        width: 100%;
    }
}