:root {
    --bg-color: #121212;
    --text-color: #ffffff;
    --primary-color: #1DB954;
    --player-bg: #181818;
}
body.dark-theme {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: sans-serif;
    margin: 0;
    padding: 0 0 100px 0; /* Space for bottom player */
}
#player-container {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: var(--player-bg);
    border-top: 1px solid #333;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.active-text { color: var(--primary-color); font-size: 1.2em; font-weight: bold; }
.sticky-ad { position: fixed; bottom: 80px; width: 100%; text-align: center; background: #222; font-size: 12px; padding: 5px; }