#classroom{max-width:1100px;margin:auto;padding:24px;color:#193b35}#classroom nav{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:24px}#classroom section{background:#fff;border:1px solid #d5dfd9;border-radius:16px;padding:24px;margin:16px 0}#classroom label{display:grid;gap:6px;margin:12px 0}#classroom input,#classroom select,#classroom textarea{max-width:100%;width:100%;padding:12px;box-sizing:border-box;border:1px solid #97b0a7;border-radius:8px}#classroom textarea{min-height:90px}#classroom button,#classroom a{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;margin:4px;cursor:pointer;overflow-wrap:anywhere}#classroom button:focus-visible,#classroom input:focus-visible{outline:3px solid #bf8d32}#classroom button:disabled{opacity:.5;cursor:wait}#classroom .cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}#classroom .actions{display:flex;flex-wrap:wrap;gap:6px}#classroom pre{white-space:pre-wrap;overflow-wrap:anywhere}#classroom [role=alert]{background:#fff0e8;padding:16px;color:#7f2518}#classroom .subtle{font-size:.9em;color:#52665d}#classroom .private{border:2px solid #d2a244;padding:12px}#classroom .status{font-weight:700;background:#edf4ee;padding:12px;border-radius:8px}@media(max-width:500px){#classroom{padding:12px}#classroom section{padding:14px}#classroom h1{font-size:1.6rem}#classroom .actions>*{flex:1 1 auto}}