body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f6f8;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-box {
    background: #ffffff;
    padding: 30px;
    width: 320px;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
    text-align: center;
}

input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    width: 100%;
    padding: 10px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

.error {
    color: red;
    font-size: 14px;
}

footer {
    background: #222;
    color: white;
    text-align: center;
    padding: 15px;
}