* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    background: #ffffff;
    color: #222;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}

header {
    background: #fff;
    text-align: center;
    padding: 6px 10px 4px;
}

header h1 {
    margin: 0;
    color: #3f3a86;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 25px;
    font-style: italic;
    font-weight: bold;
    line-height: 1.1;
}

nav {
    width: 100%;
    background: #40378a;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav li {
    border-right: 1px solid rgba(255,255,255,.45);
}

nav li:last-child {
    border-right: 0;
}

nav a {
    display: block;
    padding: 4px 10px;
    color: #fff;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 13px;
    text-decoration: none;
}

nav a:hover,
nav a:focus {
    background: #332d70;
}

#hero {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    background: #fff;
}

#hero img {
    display: block;
    width: 100%;
    height: auto;
}

main {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 12px 12px 22px;
    background: #e9ebf5;
}

main h2,
main h3 {
    color: #3f3a86;
    font-family: Georgia, "Times New Roman", serif;
}

main h2 {
    margin: 0 0 8px;
    font-size: 21px;
}

main h3 {
    margin: 0 0 6px;
    font-size: 17px;
}

main p {
    margin: 0 0 10px;
    line-height: 1.35;
}

.action {
    color: #40378a;
    font-weight: bold;
}

.page-section {
    margin-bottom: 18px;
}

.page-section ul {
    margin-top: 5px;
    padding-left: 24px;
    line-height: 1.5;
}

.lesson-card {
    margin: 14px 0;
    padding-top: 8px;
    border-top: 1px solid #c9c9d9;
}

.lesson-card img {
    display: block;
    width: min(100%, 360px);
    height: auto;
    margin: 0 auto;
}

.contact-details {
    font-size: 14px;
    line-height: 1.45;
}

.contact-details a {
    color: #40378a;
    font-weight: bold;
}

.map-frame {
    width: min(100%, 362px);
    height: 273px;
    margin: 12px auto 0;
    overflow: hidden;
    border: 2px solid #40378a;
    background: #d8d8d8;
}

.map-frame iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}

footer {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: 8px 12px;
    background: #40378a;
    color: #fff;
    text-align: center;
    font-size: 12px;
}

footer p {
    margin: 0;
}

@media (max-width: 480px) {
    header h1 {
        font-size: 22px;
    }

    nav a {
        padding: 4px 7px;
        font-size: 12px;
    }

    main {
        padding: 11px 10px 18px;
    }
}