/* Expert lesson schema UI */
.expert-lesson-article{display:grid;gap:18px}
.lesson-expert-banner{display:grid;gap:6px;padding:16px 18px;border:1px solid #cfd7ff;border-radius:16px;background:linear-gradient(135deg,#eef2ff,#f7fbff);box-shadow:var(--shadow-soft)}
.lesson-expert-banner span{width:max-content;padding:5px 10px;border-radius:999px;background:#151f45;color:#fff;font-size:12px;font-weight:900}
.lesson-expert-banner strong{font-size:18px;color:var(--ink)}
.lesson-expert-banner small{color:#53617f;font-weight:700;line-height:1.5}
.lesson-expert-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(240px,.8fr);gap:14px}
.expert-block,.demo-prompt-box,.expert-check-rubric,.expert-verify-role{border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-soft)}
.expert-block{padding:18px}.expert-block h3,.demo-prompt-box h3,.expert-check-rubric h3,.expert-verify-role h3{margin:0 0 10px;color:var(--ink)}
.expert-block p{margin:0 0 12px;color:#4f5d82;line-height:1.6}.expert-block ul{display:grid;gap:8px;margin:0;padding-left:18px;color:#52617f}
.expert-block.warning{background:#fff8ed;border-color:#f3d3a4}.expert-block.warning h3{color:#7a3d00}
.expert-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none}.expert-list li{padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fbfcff;color:#405070;font-weight:700}
.demo-prompt-box{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(240px,.85fr);gap:0;overflow:hidden}.demo-prompt-box>div,.demo-prompt-box>aside{padding:18px}.demo-prompt-box aside{background:#f8fafc;border-left:1px solid var(--line)}
.demo-prompt-box pre{white-space:pre-wrap;margin:0;padding:14px;border-radius:12px;background:#0f172a;color:#e5edff;line-height:1.6;font-family:Consolas,monospace;font-size:13px}.demo-prompt-box p{color:#4f5d82;line-height:1.6;margin:8px 0 0}
.expert-steps{display:grid;gap:10px;margin:0;padding-left:22px}.expert-steps li{padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fff;color:#405070;font-weight:700}
.expert-practice .practice-output{display:grid;gap:5px;padding:12px;border:1px solid #d8def4;border-radius:12px;background:#f8fbff;color:#425173}.expert-practice .practice-output strong{color:var(--ink)}.expert-practice .practice-output small{color:#65718d;font-weight:700}
.expert-check-rubric,.expert-verify-role{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;overflow:hidden}.expert-check-rubric>div,.expert-verify-role>div{display:grid;gap:10px;padding:18px}.expert-check-rubric>div+div,.expert-verify-role>div+div{border-left:1px solid var(--line);background:#fbfcff}
.expert-check-rubric label{display:flex;gap:10px;align-items:flex-start;padding:10px;border:1px solid var(--line);border-radius:12px;color:#4f5d82;font-weight:700}.expert-check-rubric input{margin-top:3px}
.expert-check-rubric article,.expert-verify-role article{display:grid;gap:5px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff}.expert-check-rubric article strong,.expert-verify-role article strong{color:var(--ink)}.expert-check-rubric article span,.expert-verify-role article p{margin:0;color:#435274;line-height:1.5}.expert-check-rubric article small,.expert-verify-role article small{color:#687690;font-weight:700;line-height:1.45}
.expert-verify-role ul{display:grid;gap:8px;margin:0;padding-left:20px;color:#405070;font-weight:700}
@media (max-width:900px){.lesson-expert-grid,.demo-prompt-box,.expert-check-rubric,.expert-verify-role{grid-template-columns:1fr}.demo-prompt-box aside,.expert-check-rubric>div+div,.expert-verify-role>div+div{border-left:0;border-top:1px solid var(--line)}.expert-list{grid-template-columns:1fr}}
.lesson-head-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}.lesson-head-actions .ghost-button,.lesson-head-actions .primary-button{min-height:42px}
.lesson-skill-progress{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:12px 0 18px}.lesson-skill-progress div{display:grid;grid-template-columns:34px 1fr;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#66728d;font-weight:900}.lesson-skill-progress span{display:grid;place-items:center;width:34px;height:34px;border-radius:999px;background:#edf1ff;color:#6657ff}.lesson-skill-progress .done{border-color:#bfe8cf;background:#f4fff8;color:#173d25}.lesson-skill-progress .done span{background:#18a957;color:#fff}
.demo-prompt-box .demo-output{margin-top:10px;background:#10243d;color:#e7f8ff}.demo-prompt-box div>strong{display:block;margin:12px 0 6px;color:#dbeafe}
.lesson-review-panel{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(260px,.85fr);gap:14px}.lesson-review-panel>div,.lesson-review-panel>aside,.lesson-review-result{border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-soft);padding:18px}.lesson-review-panel h3{margin:0 0 10px;color:var(--ink)}.lesson-review-panel p{color:#4f5d82;line-height:1.6}.lesson-review-panel textarea{width:100%;min-height:190px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fbfcff;color:var(--ink);resize:vertical}.lesson-review-panel form{display:grid;gap:12px}.lesson-review-panel form .primary-button{justify-self:start}.lesson-review-panel aside{display:grid;gap:10px}.lesson-review-panel aside article{display:grid;gap:5px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fbfcff}.lesson-review-panel aside strong,.lesson-review-result strong{color:var(--ink)}.lesson-review-panel aside span,.lesson-review-result p{color:#435274;line-height:1.5}.lesson-review-panel aside small,.lesson-review-result small{color:#687690;font-weight:700;line-height:1.45}.lesson-review-result{grid-column:1/-1;background:#f6f9ff}.lesson-review-result ul{margin:8px 0 0;padding-left:20px;color:#405070;font-weight:700}
@media (max-width:900px){.lesson-head-actions{justify-content:stretch}.lesson-head-actions button{width:100%}.lesson-skill-progress,.lesson-review-panel{grid-template-columns:1fr}}
.upgrade-path-box{display:grid;gap:10px;padding:18px;border:1px solid #cfd7ff;border-radius:16px;background:#f5f7ff;box-shadow:var(--shadow-soft)}.upgrade-path-box h3{margin:0;color:var(--ink)}.upgrade-path-box p{margin:0;color:#435274;line-height:1.6}.upgrade-path-box .ghost-button{justify-self:start}