* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
}

body {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: #ffffff !important;
    font-family: Arial, sans-serif;
}

#loginBtn {
    background: none;
    border: none;
    font-size: 18px;
    color: #000;
    cursor: pointer;
}

#loginBtn:hover {
    opacity: 0.6;
}

#loginForm {
    text-align: center;
}

#loginForm input {
    padding: 10px 14px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    outline: none;
    width: 200px;
}

#loginForm input:focus {
    border-color: #000;
}

#submitBtn {
    background: none;
    border: 1px solid #ccc;
    padding: 10px 14px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
    margin-left: 8px;
}

#submitBtn:hover {
    background: #f0f0f0;
}

#error {
    color: red;
    margin-top: 12px;
    font-size: 14px;
}

.hidden {
    display: none !important;
}