:root {
    /* Default = Light mode */
    --bg-color: #FFFFFF;
    --text-color: #020817;
    --heading-color: #BD0000;
}

body {
    background-color: var(--bg-color);
    font-family: Arial, sans-serif;
    color: var(--text-color);
    display: flex;
    height: 100vh;
    flex-direction: column;
    margin: 0;
}

h1 {
    color: var(--heading-color);
}

h2 {
    color: var(--text-color);
    margin-top: 24px;
}

ul {
    text-align: left;
    margin: 10px auto;
    padding-left: 20px;
}

p, li {
    line-height: 1.6;
}

.center_container {
    max-width: 400px;
    text-align: center;
    align-items: center;
    justify-content: center;
}

.container {
    padding: 40px 40px;
}

.center-body {
    text-align: center;
    align-items: center;
    justify-content: center;
}

a {
    color: var(--heading-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease, text-decoration 0.2s ease;
}

a:hover,
a:focus {
    color: var(--text-color);
    text-decoration: underline;
}

a:active {
    opacity: 0.8;
}