.historical-challenges { padding:clamp(2rem,5vw,4rem) 0; border-top:1px solid #ececec; }
.historical-challenges > h2 { margin-top:0; }
.historical-challenges > p { max-width:72ch; }
.historical-challenge { margin:1rem 0; border:1px solid #e5d5bd; border-radius:.25rem; overflow:hidden; background:#fff; box-shadow:0 5px 16px rgba(0,0,0,.04); }
.historical-challenge > summary { display:flex; align-items:center; gap:.75rem; padding:1rem 1.1rem; cursor:pointer; color:#3d3427; background:#fff8ed; font-weight:700; list-style:none; }
.historical-challenge > summary::-webkit-details-marker { display:none; }
.historical-challenge > summary > span:first-child { flex:1 1 auto; min-width:0; }
.historical-challenge__status { color:#705126; font-size:.82rem; font-weight:600; }
.historical-challenge__indicator { flex:0 0 auto; width:.65rem; height:.65rem; border-right:2px solid #8d5f25; border-bottom:2px solid #8d5f25; transform:rotate(45deg) translateY(-.2rem); transition:transform .15s ease; }
.historical-challenge[open] > summary { border-bottom:1px solid #e5d5bd; background:#fff1db; }
.historical-challenge[open] .historical-challenge__indicator { transform:rotate(225deg) translateY(-.2rem); }
.historical-challenge > summary:focus-visible { outline:3px solid #1c7c54; outline-offset:-3px; }
.historical-challenge__content { padding:0 1.1rem; overflow-wrap:anywhere; }
.historical-challenge__content .season-card { border-top:0; }
@media (max-width:640px) { .historical-challenge > summary { align-items:flex-start; flex-wrap:wrap; padding:.9rem; gap:.4rem .65rem; }.historical-challenge__status { flex:1 1 calc(100% - 2rem); }.historical-challenge__indicator { margin-top:.15rem; }.historical-challenge__content { padding:0 .9rem; } }