body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(to right, #1c1c1c, #444);
    color: white;
    font-family: sans-serif;
}

.login-box {
    background: rgb(197, 192, 192);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(219, 213, 213, 0.2);
    width: 100%;
    max-width: 350px;
    text-align: center;
}

.login-box h1 {
    margin-bottom: 20px;
    color: #574f4f;
}

.login-box input {
    width: 100%;
    padding: 12px 15px;
    margin: 10px 0;
    border: 1px solid #555050;
    border-radius: 8px;
    font-size: 16px;
}

.login-box button {
    background-color: #007bff;
    color: white;
    padding: 12px;
    width: 100%;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

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

#error-message {
    color: red;
    margin-top: 15px;
    font-size: 14px;
}