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

body {
    min-height: 100vh;
    background-color: #f5f5f5;
    color: #212121;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    display: flex;
    flex-flow: column;
}

nav {
    padding: 1rem;
    background-color: #2196F3;
    color: white;
    font-size: 1.2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

nav > div {
    display: flex;
    align-items: center;
}

nav > div:first-child {
    flex: 1;
}

nav > div:last-child {
    margin-left: auto;
}

main {
    flex-grow: 1;
    display: flex;
    padding: 0;
}

h1,
p {
    text-align: center;
}

a {
    text-decoration: none;
    color: white;
    font-weight: 500;
    margin: 0 10px;
    transition: opacity 0.2s;
}

a:hover {
    opacity: .8;
}