/* Global Styles */
body {
    font-family: 'Roboto', sans-serif;
    font-size: 18px;
    line-height: 1.8;
    color: #333;
    background-color: #f7f7f7;
    margin: 0;
    padding: 0;
}

a {
    color: #0077cc;
    text-decoration: none;
}

    a:hover {
        text-decoration: underline;
    }

nav {
    background-color: #0077cc;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    nav ul {
        margin: 0;
        padding: 0;
        list-style-type: none;
    }

    nav li {
        margin: 0;
        padding: 0;
    }

        nav li a {
            color: #fff;
            font-size: 20px;
        }

header {
    background-color: #fff;
    padding: 40px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

    header h1 {
        font-size: 48px;
        margin-bottom: 20px;
    }

    header p {
        font-size: 24px;
        margin-bottom: 40px;
    }

main {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
}

section {
    flex-basis: calc(33.33% - 20px);
    margin-bottom: 60px;
}

h1, h2, h3 {
    margin-top: 0;
}

h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
}

h2 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
}

p {
    margin-bottom: 20px;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 40px;
    text-align: center;
}

.std-image {
    max-width: 100%;
    height: auto;
    margin-bottom: 20px;
}