body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 10px; 
    box-sizing: border-box;
}

.login-container {
    background-color: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.15); 
    width: 90%;
    max-width: 500px;    
    box-sizing: border-box;
}

.login-container h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: #007bff;
    outline: none;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

.error-message {
    color: #dc3545;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px;
    margin-top: 15px;
    border-radius: 4px;
    text-align: center;
}

/* --- Media Query for Extra Small Phones (Autofit) --- */
@media (max-width: 480px) {
    .login-container {
        /* On very small screens, let the container take up almost all the width */
        width: 95%; 
        padding: 15px; /* Reduce padding to save space */
    }
}