/* EduAI unified theme (light/orange) */
:root{ --brand-700:#FF6A00; --brand-600:#FF7A1A; --brand-500:#FF8C3A; --brand-400:#FFA45F; --tint-50:#FFF6EE; --ink:#0F172A; --muted:#475569; --line:#E5E7EB; }
.eduai-card{ background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:16px;padding:18px 18px 16px;box-shadow:0 6px 18px rgba(15,23,42,.06);max-width:820px;width:100%;margin:18px auto;}
.eduai-head{display:flex;gap:12px;align-items:center;padding-bottom:10px;border-bottom:1px solid #E9EEF4;margin-bottom:12px;}
.eduai-badge{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--brand-600),var(--brand-400));color:#fff;flex:0 0 auto;}
.eduai-badge svg{width:20px;height:20px;display:block;fill:currentColor;}
.eduai-head h3{font-size:18px;line-height:1.2;margin:0;font-weight:600;}
.eduai-meta{font-size:12px;color:#667085;margin-top:2px;}
.eduai-summary .eduai-tldr{margin:8px 0 6px;font-size:15px;font-weight:500;}
.eduai-bullets{display:grid;grid-template-columns:1fr;gap:8px 16px;margin-top:6px;}
@media (min-width:1024px){.eduai-bullets{grid-template-columns:1fr 1fr;}}
.eduai-bullets li{list-style:disc;margin-left:16px;color:#1F2937;}
.eduai-bullets .dot{display:none;}
.eduai-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;min-height:48px;}
.eduai-actions .primary{appearance:none;border:0;border-radius:999px;padding:10px 14px;background:linear-gradient(90deg,var(--brand-600),var(--brand-400));color:#fff;font-weight:600;cursor:pointer;}
.eduai-actions .ghost{appearance:none;border:1px solid #E5E7EB;background:#fff;color:#0F172A;border-radius:999px;padding:10px 14px;font-weight:600;cursor:pointer;}
.eduai-actions .ghost:hover{border-color:#FFCEAA;box-shadow:0 0 0 3px rgba(255,122,26,.12);}
.eduai-chat .eduai-suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.eduai-chat .eduai-suggestions button{border:1px solid #FFD8BC;background:#FFF3E8;color:#8A3B00;border-radius:999px;padding:6px 10px;cursor:pointer;}
.eduai-chat .eduai-thread{display:flex;flex-direction:column;gap:12px;}
.eduai-chat .msg{padding:10px 12px;border-radius:14px;max-width:85%;}
.eduai-chat .msg.user{background:#FFF6EE;border:1px solid #FFD8BC;align-self:flex-end;}
.eduai-chat .msg.bot{background:#F8FAFC;border:1px solid #E5E7EB;}
.eduai-chat .eduai-inputbar{display:flex;gap:8px;margin-top:14px;border:1px solid #E5E7EB;border-radius:12px;padding:6px 6px 6px 10px;}
.eduai-chat .eduai-inputbar input{border:0;outline:0;flex:1;font-size:14px;}
.eduai-chat .eduai-inputbar button{appearance:none;border:0;background:linear-gradient(90deg,var(--brand-600),var(--brand-400));color:#fff;border-radius:10px;width:40px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;}
.eduai-chat .eduai-inputbar svg{width:18px;height:18px;fill:currentColor;}
.eduai-source{font-size:12px;color:#64748B;margin-top:6px;}
.eduai-quiz{max-width:820px;width:100%;margin:0 auto;}
.eduai-quiz,.eduai-quiz *{box-sizing:border-box;}
.eduai-progress{position:relative;height:8px;background:#F1F5F9;border-radius:999px;overflow:hidden;margin-top:4px;}
.eduai-progress .bar{height:100%;background:linear-gradient(90deg,var(--brand-600),var(--brand-400));width:0%;transition:width .25s ease;}
.eduai-progress .counter{position:absolute;right:8px;top:-22px;min-width:72px;text-align:right;font-variant-numeric:tabular-nums;font-size:12px;}
.eduai-question .q{min-height:110px;font-weight:600;}
.options{min-height:248px;display:grid;gap:10px;}
.options label{display:flex;gap:10px;align-items:flex-start;border:1px solid #E5E7EB;border-radius:12px;padding:10px;cursor:pointer;background:#fff;}
.options input[type=radio]{accent-color:var(--brand-600);margin-top:3px;}
.eduai-actions{min-height:56px;}
.eduai-feedback{min-height:52px;}
.eduai-actions .primary,.eduai-actions .ghost{min-width:120px;}
.eduai-actions .retake{display:none;}
.eduai-actions .retake.show{display:inline-block;}
.eduai-meter{margin:12px 0 8px;}
.eduai-meter .track{height:12px;border-radius:999px;background:#F1F5F9;position:relative;overflow:hidden;}
.eduai-meter .fill{height:100%;background:linear-gradient(90deg,var(--brand-600),var(--brand-400));width:0;}
.eduai-meter .label{margin-top:6px;font-weight:600;color:#0F172A;font-size:13px;}
.eduai-review{margin-top:8px;}
.eduai-review h4{margin:0 0 6px;font-size:14px;}
.eduai-review-list{margin:8px 0 0;padding-left:18px;}
.eduai-review-list li{margin:8px 0;}
.eduai-review-list li.ok .ra strong:last-child{color:#16A34A;}
.eduai-review-list li.no .ra strong:last-child{color:#DC2626;}
.eduai-note{display:flex;gap:8px;align-items:center;background:#FFF3E8;border:1px solid #FFD8BC;color:#8A3B00;border-radius:10px;padding:8px 10px;margin-top:8px;font-size:13px;}
body .eduai-card{background:#fff;}