body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #f9f9f9;
    color: #333;
    margin: 0;
    padding: 0;
}

header, footer {
    background-color: #004080;
    color: #fff;
    padding: 1em;
    text-align: center;
}

.logo a {
    font-size: 24px;
    font-weight: bold;
    background-color: #004080;
    color: #fff;
    text-decoration: none;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
}

main {
    max-width: 800px;
    margin: 2em auto;
    background-color: #fff;
    padding: 2em;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

h1 {
    color: #fff;
}

h2 {
    color: #004080;
}

button, input[type="submit"] {
    background-color: #004080;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
}

input, textarea {
    width: 100%;
    padding: 8px;
    margin: 0.5em 0 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
}