:root {
    --bg-color: #f4f7fb;
    --primary-color: #1d3557;
    --secondary-color: #457b9d;
    --card-color: #ffffff;
    --text-color: #222;
    --accent-color: #a8dadc;
    --shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}


* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}


.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--primary-color);
    padding: 1rem 2rem;
    flex-wrap: wrap;
}

.logo {
    color: white;
    margin-bottom: 0.5rem;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: white;
    padding: 0.5rem 0.8rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-links a:hover {
    background-color: var(--secondary-color);
}


.container {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1400px;
    margin: auto;
}


.main-content {
    flex: 3;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.card {
    background-color: var(--card-color);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    flex: 1 1 calc(50% - 1rem);
    min-width: 250px;
}

.card h2 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}


.sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.aside-section,
.contact-box {
    background-color: var(--card-color);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.aside-section img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 0.75rem;
}

.contact-box h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {

    .container {
        flex-direction: column;
    }

    .main-content {
        order: 1;
    }

    .sidebar {
        order: 2;
    }

    .card {
        flex: 1 1 100%;
    }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
}