/* style.css */
body {
    font-family: "Helvetica Neue", Arial, sans-serif; /*  */
    margin: 0;
    padding: 0;
    background-color: #f8f8f8; /*  */
    color: #333;
    line-height: 1.6; /*  */
}

header {
    background-color: #fff; /*  */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); /*  */
    padding: 1em 0;
    text-align: center;
    position: sticky; /*  */
    top: 0; /*  */
    z-index: 100; /*  */
}

h1 {
    font-size: 2em; /*  */
    margin: 0;
}

main {
    padding: 20px;
    max-width: 800px; /*  */
    margin: 0 auto; /*  */
}

section {
    margin-bottom: 30px; /*  */
    background-color: #fff;
    padding: 25px; /*  */
    border-radius: 8px; /*  */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); /*  */
}

h2 {
    font-size: 1.5em; /*  */
    border-bottom: 2px solid #eee; /*  */
    padding-bottom: 15px; /*  */
    margin-bottom: 20px; /*  */
}

ul {
    list-style: none;
    padding: 0;
}

li {
    margin-bottom: 8px; /*  */
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    padding: 1em 0;
    background-color: #333;
    color: #fff;
    font-size: 0.8em; /*  */
}