body {
    background: #0f172a;
    font-family: Arial, sans-serif;
    color: #e2e8f0;
    display: block;
    justify-content: center;
    align-items: center;
    padding: 30px 0;
}
.container {
    background: #1e293b;
    padding: 30px;
    border-radius: 10px;
    width: 350px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}
h2 {
    text-align: center;
}
input, button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border: none;
    border-radius: 5px;
}
input {
    background: #334155;
    color: white;
}
button {
    background: #f59e0b;
    color: black;
    font-weight: bold;
    cursor: pointer;
}
button:hover {
    background: #d97706;
}
.logout {
    background: #ef4444;
}