*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Noto Sans Telugu',sans-serif;background:#5a1414;color:#fff}

.header{padding:15px;text-align:center;background:#3d0c0c}

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

.tabs{display:flex;margin-bottom:15px}
.tab{flex:1;padding:10px;border:none;background:#eee;font-size:14px}
.tab.active{background:#d4af37;font-weight:bold}

.tab-content{display:none}
.tab-content.active{display:block}

.card{display:block;background:#fff;color:#000;padding:14px;margin-bottom:10px;border-radius:12px;text-decoration:none;font-size:16px}

.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}

.chapter{background:#d4af37;color:#000;border-radius:50%;padding:15px;text-align:center;text-decoration:none}

.audio{width:100%;margin-bottom:15px}

#content p{margin-bottom:10px;line-height:1.6}

.nav{display:flex;justify-content:space-between;margin-top:20px}

button{padding:10px 15px;border:none;border-radius:8px;background:#d4af37}