body {
  font-family: "Segoe UI", sans-serif;
  margin: 0; background: #fafafa; color: #222;
}
header { background: #0078d4; color: #fff; text-align: center; padding: 1rem; }
header .back-btn { color: #fff; text-decoration: none; position: absolute; left: 1rem; top: 1.2rem; }
.grid-container { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 1rem; padding: 1rem; }
.card { background: white; border-radius: 10px; box-shadow: 0 2px 6px rgba(0,0,0,0.1); padding: 1rem; cursor: pointer; transition: 0.2s; }
.card:hover { transform: translateY(-4px); }
iframe { width: 100%; height: 80vh; border: none; }
#comments { background: #fff; padding: 1rem; margin: 1rem; border-radius: 10px; }
#commentForm input, #commentForm textarea { width: 100%; padding: .5rem; margin: .4rem 0; border-radius: 6px; border: 1px solid #ccc; }
#commentForm button { padding: .5rem 1rem; background: #0078d4; color: white; border: none; border-radius: 6px; cursor: pointer; }
.comment { border-bottom: 1px solid #eee; padding: .5rem 0; }
.comment strong { color: #0078d4; }
button#fullViewBtn { margin: 10px auto; display: block; padding: .5rem 1rem; border: none; background: #222; color: #fff; border-radius: 6px; cursor: pointer; }
@media(max-width:700px){ iframe{height:60vh;} }