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

body {
    font-family:  sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

header {
    padding: 1rem 0 0;
}

nav {
    max-width: 840px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

h1 {
    font-weight: normal;
    font-size: 18px;
}

h2 {
    font-weight: normal;
    font-size: 16px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 0.3rem;
}

nav a {
    text-decoration: none;
    color: #333;
}

nav a:hover {
    color: #666;
}

hr {
    margin: 1rem 0 0;
    border: none;
    border-top: 1px solid #ccc;
}

section {
    max-width: 840px;
    margin: 1rem auto;
    padding: 0 1rem;
    line-height: 1.8;
}

section p {
    margin-bottom: 0.75rem;
}