body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #1f2933;
    background: #f5f7fa;
}

header {
    background: #0f2a44;
    color: #ffffff;
    text-align: center;
    padding: 40px 20px;
}

.logo {
    max-width: 180px;
    margin-bottom: 20px;
}

header h1 {
    margin: 10px 0;
    font-size: 26px;
}

header p {
    margin: 10px 0 20px;
    font-size: 16px;
}

.btn {
    display: inline-block;
    background: #25d366;
    color: #ffffff;
    padding: 14px 24px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

section {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

h2 {
    color: #0f2a44;
}

h3 {
    margin-top: 30px;
}

ul {
    padding-left: 20px;
}

footer {
    background: #0f2a44;
    color: #ffffff;
    text-align: center;
    padding: 20px;
}