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

    --card-bg: #262626;
    --accent: #6a4df5;
}

body {
    background-color: var(--content-bg-color);
    color: #fff;
    font-family: Arial, sans-serif;
    margin: 0;
    margin: 100px auto 120px auto;
    text-align: center;
}

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

.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px 20px 24px;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
}

h1 {
    margin-top: 10px;
    margin-bottom: 16px;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    cursor: pointer;
    font-size: 15px;
    margin-top: 16px;
    text-decoration: none;
}