html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background-image: url("../images/background.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
}

header {
    width: 100%;
    background-color: aliceblue;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

header img {
    height: 4vw;
    margin: 0.5vw;
}

header nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #140839;
    font-weight: bold;
    font-size: 1.2vw;
}

header nav a:hover{
    color: #0020a2;
    font-weight: bold;
    font-size: 1.2vw;
    text-decoration: underline;
}

.container {
    max-width: 1200px;
    flex: 1;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 1vw;
    justify-content: center;
}