:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --background-color: #ffffff;
    --text-color: #212529;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--background-color, #f4f4f4);
    color: var(--text-color, #333);
    margin: 16px;
}

.container {
    max-width: 480px;
    margin: auto;
    background: var(--background-color, white);
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    font-size: 1.5em;
    text-align: left;
}

.info {
    margin: 1em 0;
    padding: 1em;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.label {
    font-weight: bold;
    margin-top: 1em;
}

.status {
    margin: 1rem 0;
    font-size: 1.2rem;
    margin-top: 16px;
}

input[type="email"],
input[type="number"] {
    width: 100%;
    padding: 0.75em;
    margin: 0.5rem 0;
    font-size: 1em;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid #ccc;
}

button {
    width: 100%;
    padding: 0.75em;
    margin: 0.5rem 0;
    font-size: 1em;
    cursor: pointer;
    background-color: var(--primary-color, #007bff);
    color: white;
    border-radius: 8px;
    border: none;
}

button:hover {
    background-color: var(--primary-hover, #0056b3);
}

button:disabled {
    background-color: var(--secondary-color, #aaa);
}

.leave {
    background-color: var(--danger-color, #e74c3c);
    color: white;
}

.premium-badge {
    background-color: var(--success-color, gold);
    color: black;
    font-weight: bold;
    padding: 0.2em 0.5em;
    border-radius: 8px;
    margin-left: 0.5em;
}


#reader {
    width: 100%;
    margin: 1em 0;
    border-radius: 0px;
}

#qrCodeContainer {
    display: flex;
    justify-content: center;
    margin-top: 1em;
    margin-bottom: 1em;
}