body {
    align-items: center;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    text-align: center;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.container {
    width: 90%;
    max-width: 500px;
    margin: auto;
    background: white;
    padding: 20px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    
}
h2, h3 {
    color: #333;
}
input, button {
    display: block;
    width: 90%;
    margin: 10px auto;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 16px;
}
button {
    background: green;
    color: white;
    cursor: pointer;
    border: none;
    font-weight: bold;
}

button:active {
    background: blue;
}

.logout-btn {
    background: red;
}

@media (max-width: 480px) {
    .container {
        width: 95%;
    }

    input, button {
        font-size: 14px;
    }
}