.ap-runner{--ap-blue:#e5edf3;--ap-clay:#f3e5d9;--ap-lilac:#ece6f2;background:#fffefa;border:1px solid var(--line);border-radius:8px;overflow:hidden}.ap-runner-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-bottom:1px solid var(--line);background:var(--ap-blue)}.ap-runner h1{font-size:22px;line-height:1.3;margin:0 0 4px}.ap-runner h2{font-size:18px;margin:0}.ap-runner small,.ap-runner-footer>span,.ap-runner-header span,.ap-section-bar span{font-size:12px;color:#5b656c}.ap-timer{display:flex;align-items:center;gap:10px;font-size:13px}.ap-timer time{font-size:20px;font-variant-numeric:tabular-nums;color:#29495f}.ap-preflight,.ap-result,.ap-review{padding:20px}.ap-preflight ul{margin:20px 0;padding-left:20px;font-size:14px;line-height:1.9}.ap-stage-list{margin:16px 0;border:1px solid var(--line);border-radius:6px;overflow:hidden}.ap-stage-list>div{display:grid;grid-template-columns:1fr 1.5fr .7fr;gap:10px;padding:12px 16px;align-items:center;font-size:14px}.ap-stage-list>div+div{border-top:1px solid var(--line)}.ap-stage-list strong{font-size:14px}.ap-section-bar{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:12px 20px;background:#edf1e7;border-bottom:1px solid var(--line);font-size:14px}.ap-section-bar>strong{margin-right:auto}.ap-review-key{display:flex;gap:24px;font-size:13px;color:#5d6764;margin-bottom:16px}.ap-review nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:10px;max-width:700px}.ap-review nav button{position:relative;height:42px;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:4px}.ap-review nav button.answered{background:#e4ede1;border-color:#9bac94}.ap-review nav button.flagged{outline:2px solid #a28bba;outline-offset:1px}.ap-review nav sup{position:absolute;top:-6px;right:1px;background:var(--ap-lilac);color:#6d4c86}.ap-question{padding:20px}.ap-question-bar{display:flex;align-items:center;gap:12px;margin-bottom:20px;font-size:13px}.ap-question-bar h2{font-size:16px;margin-right:auto}.ap-question .teaching-work-answer,.ap-solution{margin-top:20px}.ap-solution{padding:16px;background:#edf1e7;border-radius:6px;font-size:14px}.ap-solution h2{margin-bottom:14px}.ap-solution>div+div{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}.ap-runner-footer{display:flex;align-items:center;flex-wrap:wrap;gap:12px;border-top:1px solid var(--line);padding:12px 20px;position:sticky;bottom:0;background:#fffefa}.ap-runner-footer>span{margin-right:auto}.ap-confirm{padding:16px 20px;background:var(--ap-clay);font-size:14px}.ap-confirm p{margin:0 0 12px}.ap-confirm button+button{margin-left:18px}.ap-rest{min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;background:var(--ap-lilac)}.ap-rest time{font-size:38px;font-variant-numeric:tabular-nums;color:#66527d}.ap-rest p{font-size:14px;margin:0}.ap-result{border-bottom:1px solid var(--line)}.ap-result>button{margin:12px 0 0 20px}.ap-runner .form-error{margin:12px 20px}.ap-courses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:20px}.ap-course{border:1px solid var(--line);padding:16px;background:var(--white);border-radius:6px}.ap-course:nth-child(2){background:#f4ede6}.ap-course:nth-child(3){background:#e9eff3}.ap-course:nth-child(4){background:#eee9f3}.ap-course h2{font-size:18px;margin:0 0 12px}.ap-course div{font-size:13px;color:#596663;margin-bottom:12px}@media (max-width:650px){.ap-runner-header{align-items:flex-start;flex-wrap:wrap;padding:14px}.ap-runner h1{font-size:19px}.ap-preflight,.ap-question,.ap-result,.ap-review{padding:14px}.ap-runner-footer,.ap-section-bar{padding:12px 14px}.ap-stage-list>div{padding:10px;grid-template-columns:1fr 1.4fr .6fr;font-size:12px}.ap-courses{grid-template-columns:1fr}.ap-runner-footer .button{padding:7px 10px}.ap-rest{min-height:250px}}