body{margin:0;background:#111;color:#fff;font-family:Arial}
.top{display:flex;justify-content:space-between;align-items:center;padding:10px}
#main{display:block;width:min(96vw,1200px);height:75vh;object-fit:contain;margin:auto;background:#000}
#thumbs{display:flex;gap:8px;overflow-x:auto;padding:10px}
#thumbs img{height:72px;cursor:pointer;opacity:.6}
#thumbs img.active{opacity:1;outline:2px solid #fff}
button{font-size:22px}


#title{text-align:center;font-size:18px;font-weight:600;color:#333;margin:12px 20px;}