body {
    font-family: Arial, sans-serif;
    background-color: #e9ecef; /* Cor de fundo suave */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.login-container {
    background-color: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

h1 {
    color: #007bff;
    margin-bottom: 5px;
}

p {
    color: #6c757d;
    margin-bottom: 30px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.input-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box; /* Garante que o padding não aumente o tamanho total */
}

button {
    width: 100%;
    padding: 12px;
    background-color: #28a745; /* Botão de destaque verde */
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #1e7e34;
}

.error-message {
    color: #dc3545;
    margin-top: 15px;
    font-weight: bold;
    /* Começa invisível, será exibido pelo JS se o login falhar */
    display: none; 
}