body {
    font-family: Arial, sans-serif;
    background-color: #333;
    display: flex;
    justify-content: center;
    align-items: center; /* CORREÇÃO: Volta a centralizar o container verticalmente */
    min-height: 100vh;
    margin: 0;
    text-align: center;
    padding: 20px; 
    box-sizing: border-box;
}

.login-container {
    background-color: #333; 
    padding: 30px;
    border-radius: 0; 
    box-shadow: none; 
    width: 100%; 
    max-width: 600px; 
    color: #fff;
    border: none; 
    margin-top: 0; /* CORREÇÃO: Remove a margem do topo para permitir a centralização completa */
}

.logo {
    width: 120px;
    height: auto;
    margin-bottom: 20px;
    border-radius: 50%; 
}

h2 {
    color: #ffc400; 
    margin-bottom: 25px;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #555;
    border-radius: 5px;
    box-sizing: border-box;
    background-color: #444; 
    color: #fff;
}

button {
    background-color: #ffc400; 
    color: #333; 
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
    margin-top: 15px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #ffd700; 
}