/* Minimal, centered accordion with arrow */
.opedia-acc{margin:12px auto; max-width:1060px;}
.opedia-acc__toggle{
  width:100%; background:#0d1320; color:#fff; border:none; border-radius:16px;
  padding:14px 16px; display:flex; align-items:center; justify-content:center; gap:10px;
  cursor:pointer; text-align:center; font-weight:700; line-height:1.25;
}
.opedia-acc__title{display:inline-block; text-align:center; font-size:clamp(16px,4.5vw,22px)}
.opedia-acc__icon{width:12px;height:12px; border-right:2px solid #fff; border-bottom:2px solid #fff; transform:rotate(45deg); transition:.2s}
.opedia-acc__toggle[aria-expanded="true"] .opedia-acc__icon{ transform:rotate(-135deg); }
.opedia-acc__panel{ overflow:hidden; transition:max-height .25s ease; max-height:0; }
.opedia-acc__inner{ padding:12px 6px 2px; font-size:16px; line-height:1.6; }