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

body {
    font-family: system-ui, sans-serif;
    line-height: 1.6;
}

header {
    background: #333;
    color: white;
    padding: 1rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1rem;
}

main {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 1rem;
}