#teller-login-form {
    width: 420px;
    max-width: 100%;
    margin: 80px auto 40px;
    background-color: #334257;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

#teller-login-form h1 {
    margin: 0;
    padding: 20px 0;
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    color: white;
}

#teller-login-form form {
    padding: 20px;
    background-color: white;
    border-radius: 10px;
}

#teller-login-form .form-group {
    margin-bottom: 16px;
}

#teller-login-form label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #555;
}

#teller-login-form input {
    width: 100%;
    padding: 12px;
    border: 1px solid #d0d0d0;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
}

#teller-login-form button {
    width: 100%;
    margin-top: 8px;
    padding: 12px;
    border: none;
    border-radius: 5px;
    background-color: #548ca8;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

#teller-login-form button:disabled {
    opacity: 0.7;
    cursor: default;
}

#teller-login-form .error {
    margin: 0 0 12px;
    color: #b00020;
    font-size: 14px;
}