body {
    font-family: Arial, sans-serif;
    background: linear-gradient(120deg, #2980b9, #6dd5fa);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background: white;
    padding: 30px;
    width: 300px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    text-align: center;
}

.login-container h2 {
    margin-bottom: 20px;
}

.login-container input {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
}

.login-container button {
    width: 100%;
    padding: 10px;
    background: #2980b9;
    border: none;
    color: white;
    cursor: pointer;
}

.login-container button:hover {
    background: #1f6391;
}

#error {
    color: red;
    margin-top: 10px;
}