body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

form {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    width: 300px;
}

form h2 {
    text-align: center;
    margin-bottom: 20px;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 93%;
    padding: 10px;
    margin-top: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    margin-top: 2px;
    width: 100%;
    height: 42px;
    padding: 10px;
    background-color: #4285f4;
    border: none;
    color: white;
    font-size: 17px;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #3367d6;
}

/* Estilos para o menu de usuário */
.user-menu {
    position: relative;
}

.user-dropdown {
    display: none;
    /* ... (outros estilos permanecem como no index.php) ... */
}