body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
}
header {
    background-color: #0044cc;
    color: #fff;
    text-align: center;
    padding: 20px;
    border-bottom: 3px solid #002a80;
}
nav {
    background: #007bff;
    color: white;
    display: flex;
    justify-content: center;
    padding: 0.75rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}
nav a:hover {
    color: #ffdd57;
}
main {
    padding: 20px;
    text-align: center;
}
section {
    margin: 20px 0;
    padding: 20px;
    border-radius: 6px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
footer {
    background-color: #0044cc;
    color: white;
    text-align: center;
    padding: 1rem;
    border-top: 3px solid #002a80;
}
form {
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 6px;
    max-width: 300px;
    background-color: #f9f9f9;
}
input[type="text"], input[type="email"], input[type="password"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}
input[type="submit"] {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
    transition: background-color 0.3s;
}
input[type="submit"]:hover {
    background-color: #0056b3;
}