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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--body-background);
    color: var(--color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
}

main {
    background: var(--main-background);
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--shadow);
}

h1, h2, h3 {
    margin-bottom: 1rem;
    color: var(--heading-color);
}

a {
    color: var(--a-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}