body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #eef2f7;
    color: #333;
}

header {
    background-color: #004080;
    color: white;
    padding: 20px;
    text-align: center;
}

nav {
    background-color: #0066cc;
    padding: 12px;
    text-align: center;
}

nav a {
    color: white;
    margin: 0 15px;
    font-weight: bold;
    text-decoration: none;
    transition: 0.3s;
}

nav a:hover {
    text-decoration: underline;
}

.container {
    padding: 40px;
    max-width: 800px;
    margin: auto;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    margin-top: 40px;
    border-radius: 8px;
}

form input[type="text"],
form input[type="email"],
form input[type="password"] {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

form button {
    padding: 12px 20px;
    background-color: #004080;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
}

form button:hover {
    background-color: #0066cc;
}

.error {
    color: red;
    font-size: 14px;
    margin-top: 10px;
}

footer {
    background-color: #004080;
    color: white;
    padding: 15px;
    text-align: center;
    position: fixed;
    width: 100%;
    bottom: 0;
}