body {
    margin: 0;
    font-family: serif;
    background: #000;
    color: silver;
}

header {
    text-align: center;
    padding: 30px 10px;
    border-bottom: 1px solid silver;
}

.subtitle {
    color: #c00;
}

.home-buttons, .content {
    display: grid;
    gap: 20px;
    padding: 30px;
}

.btn, .card {
    padding: 20px;
    background: #111;
    border: 1px solid silver;
    border-radius: 8px;
    text-align: center;
    color: silver;
    text-decoration: none;
    transition: 0.2s;
}

.btn:hover, .card:hover {
    border-color: #c00;
    color: #c00;
}

.reading-mode {
    background: #000;
}

.reading-content {
    padding: 30px;
    line-height: 1.8;
    font-size: 20px;
}