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

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #ffffff;
}

/* HEADER */
header {
    background-color: #1f2933;
    color: white;
    text-align: center;
    padding: 80px 20px;
}

header h1 {
    font-size: 40px;
    margin-bottom: 10px;
}

header p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 25px;
}

header a {
    display: inline-block;
    background-color: #3b82f6;
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
}

/* SECTION */
section {
    max-width: 900px;
    margin: 50px auto;
    padding: 0 20px;
}

section h2 {
    font-size: 26px;
    margin-bottom: 15px;
    color: #1f2933;
}

section p {
    margin-bottom: 10px;
}

section ul {
    margin-left: 20px;
}

section ul li {
    margin-bottom: 8px;
}

/* FOOTER */
footer {
    background-color: #f3f4f6;
    text-align: center;
    padding: 20px;
    font-size: 14px;
    color: #555;
}