* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}


body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}


header {
    background-color: #8B0000;
    color: white;
    padding: 15px;
}

nav.horizontal ul {
    display: flex;
    list-style: none;
    justify-content: center;
}

nav.horizontal ul li {
    margin: 0 15px;
}

nav.horizontal ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.container {
    display: flex;
    flex: 1;
}


nav.vertical {
    width: 200px;
    background-color: #f4f4f4;
    padding: 20px;
}

nav.vertical ul {
    list-style: none;
}

nav.vertical ul li {
    margin-bottom: 10px;
}

nav.vertical ul li a {
    text-decoration: none;
    color: #333;
}


main {
    flex: 1;
    padding: 20px;
}


footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}