body {
    font-family: Arial, sans-serif;
    background-color: #f4f6f9;
    color: #333;
    margin: 0;
    padding: 0;
}
header {
    background-color: #243b55;
    color: white;
    text-align: center;
    padding: 25px;
}
header h1 {
    margin: 0;
    font-size: 28px;
}
main {
    max-width: 1000px;
    margin: 30px auto;
    padding: 0 20px;
}
main div {
    background-color: white;
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}
h2 {
    color: #243b55;
    padding-bottom: 10px;
}
h3 {
    color: #365f91;
}
h4 {
    color: #d97706;
    margin-bottom: 5px;
}
ul {
    padding-left: 25px;
}
li {
    margin-bottom: 12px;
}
table {
    width: 950px;
    margin-top: 15px;
}
th {
    background-color: #243b55;
    color: white;
    padding: 14px;
    text-align: left;
}
td {
    padding: 14px;
    border-bottom: 1px solid #ddd;
}
tr:nth-child(even) {
    background-color: #f2f5f9;
}
tr:hover {
    background-color: #e6eef8;
}
img {
    max-width: 950px;
    height: auto;
    margin: 25px auto;
    border-radius: 10px;
}
footer {
    background-color: #243b55;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 30px;
}
footer p {
    margin: 0;
}