/* Arena only: no shared menu or game selectors are changed. */
#kabuTeacherArena{margin:24px 0;border:2px solid white;border-radius:24px;background:#eee7fa;overflow:hidden}
#kabuTeacherArena>summary{display:list-item;list-style:disclosure-closed;min-height:66px;padding:20px 22px;font-size:22px;font-weight:800;color:#6540b5;cursor:pointer}
#kabuTeacherArena[open]>summary{list-style:disclosure-open}#kabuTeacherArena>summary::-webkit-details-marker{display:inline}
#kabuTeacherArena .ksa-workshop{padding:24px;background:linear-gradient(130deg,#f3edfc,#e8f7ef);color:#433453;line-height:1.65}
#kabuTeacherArena .ksa-heading>span{font-size:13px;font-weight:800;letter-spacing:.6px;color:#79559d}
#kabuTeacherArena h4{font-size:clamp(30px,3.8vw,44px);line-height:1.2;color:#6540b5;margin:10px 0 14px}
#kabuTeacherArena .ksa-heading p{font-size:20px;margin:0 0 24px}
#kabuTeacherArena .ksa-names{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:20px 0}
#kabuTeacherArena .ksa-names label{font-size:17px;font-weight:750;min-width:0}
#kabuTeacherArena .ksa-names input{display:block;width:100%;min-width:0;min-height:50px;margin-top:8px;border:1px solid #d4c4e9;border-radius:13px;padding:12px;font:inherit;color:#433453;background:#fff}
#kabuTeacherArena fieldset{min-width:0;padding:16px;margin:20px 0;border:1px solid #d5c3ed;border-radius:18px}
#kabuTeacherArena legend{font-size:19px;font-weight:750;padding:0 8px}
#kabuTeacherArena .ksa-mode-options{display:flex;flex-wrap:wrap;gap:12px}
#kabuTeacherArena .ksa-mode-options label{display:flex;align-items:center;gap:10px;padding:14px;background:#ffffffba;border:2px solid white;min-height:54px;border-radius:14px;font-size:17px;cursor:pointer;flex:1 1 200px}
#kabuTeacherArena .ksa-mode-options input{width:22px;height:22px;accent-color:#6540b5;flex:none;margin:0}
#kabuTeacherArena button{min-height:50px;border:0;border-radius:15px;padding:13px 19px;font:inherit;font-size:17px;font-weight:750;line-height:1.4;background:#6540b5;color:white;box-shadow:0 4px 0 #4e2e90}
#kabuTeacherArena button:disabled{opacity:.6;cursor:default;box-shadow:none}
#kabuTeacherArena :is(input,button,summary):focus-visible{outline:3px solid #563397;outline-offset:4px}
#kabuTeacherArena .ksa-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}
#kabuTeacherArena #ksaHow,#kabuTeacherArena #ksaPause,#kabuTeacherArena #ksaUndo{background:#e1d3f4;color:#50317b;box-shadow:0 4px 0 #cebbe8}
#kabuTeacherArena #ksaHelp{padding:18px;border-radius:18px;background:#fff3d2;font-size:17px}
#kabuTeacherArena .ksa-team-board{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:22px 0}
#kabuTeacherArena .ksa-team{position:relative;min-width:0;border:3px solid #fff;border-radius:23px;padding:20px;text-align:center;box-shadow:0 5px 0 #cbdcd0;background:#def2e5}
#kabuTeacherArena .ksa-team-purple{background:#e9def8;box-shadow:0 5px 0 #d8c8e9}
#kabuTeacherArena .ksa-team-icon{font-size:36px;line-height:1.2;color:#386b4e;display:block}
#kabuTeacherArena .ksa-team-icon svg{width:40px;height:40px;display:block;margin:auto}
#kabuTeacherArena .ksa-team-purple .ksa-team-icon{color:#7850ac}
#kabuTeacherArena .ksa-team h5{font-size:24px;line-height:1.4;margin:10px 0;color:#3a5444;overflow-wrap:anywhere}
#kabuTeacherArena .ksa-team-purple h5{color:#64448e}
#kabuTeacherArena .ksa-team>strong{display:block;font-size:42px;line-height:1.2;margin:12px 0;color:#244b36}
#kabuTeacherArena .ksa-team-purple>strong{color:#604081}
#kabuTeacherArena .ksa-team>span:last-of-type{font-size:15px;font-weight:750}
#kabuTeacherArena .ksa-current{outline:4px solid #7650b1;outline-offset:2px}
#kabuTeacherArena .ksa-bonus{position:absolute;right:12px;top:12px;background:#fff4b6;color:#795a16;padding:6px 9px;border-radius:12px;font-size:18px;font-weight:800;animation:ksaCelebrate .65s ease-out}
#kabuTeacherArena .ksa-metrics{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;background:white;border-radius:18px;padding:16px 20px;font-size:18px}
#kabuTeacherArena #ksaActiveTeam{min-width:0;overflow-wrap:anywhere}
#kabuTeacherArena progress{width:100%;height:17px;accent-color:#6540b5}
#kabuTeacherArena #ksaTimer{padding:5px 10px;border-radius:10px;background:#fff1c4;color:#654c1a;font-weight:800}
#kabuTeacherArena .ksa-question{padding:25px;background:white;border:2px solid #e2d6ef;border-radius:24px;margin:20px 0}
#kabuTeacherArena .ksa-topic{font-size:15px;font-weight:750;color:#765394}
#kabuTeacherArena #ksaQuestion{font-size:clamp(26px,3.2vw,36px);line-height:1.5;color:#4b355f;margin:14px 0 24px;word-break:normal;overflow-wrap:normal;hyphens:none}
#kabuTeacherArena .ksa-choices{display:grid;gap:15px}
#kabuTeacherArena .ksa-choices button{display:flex;align-items:center;text-align:left;gap:16px;width:100%;min-width:0;min-height:82px;padding:18px;font-size:22px;font-weight:650;line-height:1.55;background:#ece2fa;color:#4f376d;box-shadow:0 4px 0 #d7c5ed}
#kabuTeacherArena .ksa-choices button:nth-child(2){background:#e1f2e9;color:#2d5b43;box-shadow:0 4px 0 #c8e0d4}
#kabuTeacherArena .ksa-choices button:nth-child(3){background:#fff0ce;color:#69532c;box-shadow:0 4px 0 #ead9b3}
#kabuTeacherArena .ksa-choices button>span:last-child{min-width:0;word-break:normal;overflow-wrap:normal}
#kabuTeacherArena .ksa-option-letter{display:grid;place-items:center;width:43px;min-height:43px;flex:0 0 43px;background:#ffffffb0;border-radius:13px;font-weight:850}
#kabuTeacherArena .ksa-feedback{padding:20px;background:#fff4d5;border:2px solid white;border-radius:19px;margin:18px 0;font-size:19px}
#kabuTeacherArena .ksa-feedback strong{font-size:22px}#kabuTeacherArena .ksa-feedback p{margin:12px 0 0}
#kabuTeacherArena .ksa-positive{background:#def3e6}
#kabuTeacherArena .ksa-pause-notice{padding:18px;background:#fff4d5;border:2px solid #e2c681;border-radius:18px;font-size:19px;font-weight:750;margin-top:20px}
#kabuTeacherArena .ksa-controls{padding:18px;background:#ffffffc0;border:1px solid #ded2eb;border-radius:18px;margin-top:24px}
#kabuTeacherArena .ksa-controls h5{font-size:19px;color:#6540b5;margin:0 0 12px}
#kabuTeacherArena .ksa-controls .ksa-actions{margin:0}
#kabuTeacherArena #ksaResults{padding:24px;background:#f7fff9;border:2px solid white;border-radius:24px;text-align:center}
#kabuTeacherArena #ksaWinner{font-size:32px;line-height:1.4;color:#6540b5;margin:18px 0;overflow-wrap:anywhere}
#kabuTeacherArena .ksa-final-scores{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:24px 0}
#kabuTeacherArena .ksa-final-scores>div{min-width:0;padding:20px;background:#e0f2e7;border-radius:18px}#kabuTeacherArena .ksa-final-scores>div:nth-child(2){background:#e9def9}
#kabuTeacherArena .ksa-final-scores span{display:block;font-size:21px;overflow-wrap:anywhere}
#kabuTeacherArena .ksa-final-scores strong{display:block;font-size:34px;margin-top:12px;color:#50376c}
#kabuTeacherArena #ksaResults>.ksa-actions{justify-content:center}
#kabuTeacherArena .ksa-confetti{font-size:33px;letter-spacing:5px;color:#927018;text-shadow:8px -4px #b894dd,-8px 4px #79b999;animation:ksaCelebrate .8s ease-out}
#kabuTeacherArena .ksa-print-tools{margin-top:24px;padding:0 18px 18px;border-radius:18px;border:1px solid #e4d4ab;background:#fff5dc}
#kabuTeacherArena .ksa-print-tools>summary{display:list-item;list-style:disclosure-closed;min-height:60px;padding:17px 0;font-size:19px;font-weight:750;color:#6540b5;cursor:pointer}
#kabuTeacherArena .ksa-print-tools[open]>summary{list-style:disclosure-open}#kabuTeacherArena .ksa-print-tools>summary::-webkit-details-marker{display:inline}
#kabuTeacherArena #ksaStatus{font-size:17px;min-height:1.65em;font-weight:750;margin:20px 0 0}
#kabuTeacherArena [hidden]{display:none!important}
@keyframes ksaCelebrate{from{opacity:0;transform:translateY(6px) scale(.85)}to{opacity:1;transform:translateY(0) scale(1)}}
@media(max-width:700px){#kabuTeacherArena .ksa-workshop{padding:16px 12px}#kabuTeacherArena>summary{font-size:20px;padding:18px 14px}#kabuTeacherArena .ksa-names{grid-template-columns:1fr}#kabuTeacherArena .ksa-team-board{gap:12px}#kabuTeacherArena .ksa-team{padding:16px 10px}#kabuTeacherArena .ksa-team h5{font-size:19px}#kabuTeacherArena .ksa-team>strong{font-size:34px}#kabuTeacherArena .ksa-question{padding:18px 14px}#kabuTeacherArena .ksa-choices button{font-size:18px;padding:15px 12px;gap:12px;min-height:76px}#kabuTeacherArena .ksa-actions button{flex:1 1 150px}#kabuTeacherArena .ksa-final-scores{gap:12px}#kabuTeacherArena .ksa-final-scores>div{padding:16px 10px}#kabuTeacherArena .ksa-final-scores strong{font-size:27px}#kabuTeacherArena .ksa-bonus{position:static;display:inline-block}}
@media(prefers-reduced-motion:reduce){#kabuTeacherArena *,#kabuTeacherArena *::before{animation:none!important;transition:none!important}}