:root {
    --footer-bg: #262626;
    --footer-text: #fff;
    --footer-link: #d51ac3;
    --footer-top: 20px;
    --header-bg: #262626;
    --header-text: #fff;
}

body {
    background-color: var(--content-bg-color);
    color: #fff;
    font-family: system-ui, sans-serif;
    margin: 0;
}

main {
    max-width: 600px;
    margin: 40px auto;
    padding: 0 16px 40px;
}

.card {
    background: #262626;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

.code-box {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 6px;
    text-align: center;
    padding: 12px 16px;
    border-radius: 8px;
    background: #333;
    margin: 10px 0 20px;
}

.btn {
    display: inline-block;
    background: #d51ac3;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    cursor: pointer;
    font-size: 15px;
    margin: 6px 4px 0;
}

.btn.secondary {
    background: #444;
}

.qr {
    margin: 20px auto;
    width: 200px;
    height: 200px;
}

.text-box {
    background: #222;
    border-radius: 10px;
    padding: 16px;
    margin-top: 16px;
}

.text-box pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: inherit;
}

.highlight {
    border: 1px solid #d51ac3;
}

.status {
    margin-top: 12px;
    font-size: 14px;
    opacity: 0.9;
}